0001564590-19-032908 | 10-K | XBRL Viewer

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Organization and Summary of Significant Accounting Policies - Financial Assets Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Millions	Jun. 29, 2019	Jun. 30, 2018
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available-for-sale securities	$ 313.7	$ 275.2
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available-for-sale securities		1.5
Money Market Funds [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securitie	$ 313.7	275.2
Auction Rate Securities [Member] \| Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, equity securities		$ 1.5

Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 29, 2019	Jun. 30, 2018
Current Assets:
Cash and cash equivalents	$ 327.8	$ 301.0
Accounts receivable, net of allowances of $2.1 and $1.8 at June 2019 and 2018, respectively	230.0	289.1
Inventories	158.7	131.2
Prepaid expenses and other current assets	14.6	18.2
Total current assets	731.1	739.5
Property and equipment, net	103.0	117.8
Goodwill	372.8	372.8
Acquired intangibles, net	144.8	219.2
Non-current other assets	58.1	50.5
Total assets	1,409.8	1,499.8
Current Liabilities:
Accounts payable	98.3	156.9
Accrued compensation	30.4	25.4
Income taxes payable	19.1	13.1
Acquisition-related liabilities		8.7
Other accrued liabilities	106.1	79.7
Total current liabilities	253.9	283.8
Convertible notes, net	468.3	450.7
Other long-term liabilities	30.3	36.0
Total liabilities	752.5	770.5
Commitments and contingencies
Stockholders' Equity:
Preferred stock: $0.001 par value; 10,000,000 shares authorized; no shares issued and outstanding
Common stock $0.001 par value; 120,000,000 shares authorized, 64,283,948 and 62,889,679 shares issued, and 33,349,735 and 35,249,803 shares outstanding, at June 2019 and 2018, respectively	0.1	0.1
Additional paid-in capital	1,266.1	1,195.2
Treasury stock: 30,934,213 and 27,639,876 common shares at June 2019 and 2018, respectively, at cost	(1,192.4)	(1,073.9)
Accumulated other comprehensive income		1.5
Retained earnings	583.5	606.4
Total stockholders' equity	657.3	729.3
Liabilities and stockholders' equity	$ 1,409.8	$ 1,499.8

Consolidated Statements of Comprehensive Income/(Loss) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net income/(loss)	$ (22.9)	$ (124.1)	$ 48.8
Other comprehensive loss, net of tax:
Change in unrealized net loss on investments	(1.5)		(1.5)
Reclassification from accumulated other comprehensive loss to interest income for accretion of non-current investments			(0.3)
Net current-period other comprehensive loss	(1.5)		(1.8)
Comprehensive income/(loss)	$ (24.4)	$ (124.1)	$ 47.0

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Acquired Intangibles - Summary of Life, Gross Carrying Value of Acquired Intangible Assets, and Related Accumulated Amortization (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 445.5	$ 456.1
Accumulated Amortization	(300.7)	(236.9)
Net Carrying Value	$ 144.8	219.2
Weighted Average Life in Years	4 years 4 months 24 days
Display Driver Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 164.0	164.0
Accumulated Amortization	(148.1)	(116.5)
Net Carrying Value	$ 15.9	47.5
Weighted Average Life in Years	5 years 3 months 18 days
Audio and Video Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 138.6	133.9
Accumulated Amortization	(49.4)	(22.8)
Net Carrying Value	$ 89.2	111.1
Weighted Average Life in Years	5 years 3 months 19 days
Fingerprint Authentication Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 47.2	55.7
Accumulated Amortization	$ (47.2)	(53.7)
Net Carrying Value		2.0
Weighted Average Life in Years	4 years 8 months 12 days
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 81.8	81.8
Accumulated Amortization	(49.9)	(38.5)
Net Carrying Value	$ 31.9	43.3
Weighted Average Life in Years	4 years 1 month 6 days
Licensed Technology and Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 7.7	9.0
Accumulated Amortization	(3.6)	(3.0)
Net Carrying Value	$ 4.1	6.0
Weighted Average Life in Years	4 years 2 months 12 days
Tradename [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 1.8	1.9
Accumulated Amortization	(0.5)	(0.2)
Net Carrying Value	$ 1.3	1.7
Weighted Average Life in Years	7 years
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 4.4	4.6
Accumulated Amortization	(2.0)	(1.7)
Net Carrying Value	$ 2.4	2.9
Weighted Average Life in Years	8 years 1 month 6 days
Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value		0.5
Accumulated Amortization		(0.5)
Weighted Average Life in Years	0 years
In-Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value		4.7
Net Carrying Value		$ 4.7

Share-Based Compensation - Shares Purchased, Weighted Average Purchase Price, Cash Received, and Aggregate Intrinsic Value for ESPP (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares purchased	544,886
Aggregate intrinsic value	$ 0.4
Employee Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares purchased	544,886	486,263	302,085
Weighted average purchase price	$ 29.48	$ 32.07	$ 46.74
Cash received	$ 16.1	$ 15.6	$ 14.1
Aggregate intrinsic value	$ 2.8	$ 3.9	$ 2.7

Organization and Summary of Significant Accounting Policies

12 Months Ended

Jun. 29, 2019

Accounting Policies [Abstract]

Organization and Summary of Significant Accounting Policies

1.	Organization and Summary of Significant Accounting Policies

Organization and Basis of Presentation

We are a leading worldwide developer and supplier of custom-designed human interface semiconductor product solutions that enable people to interact more easily and intuitively with a wide variety of mobile computing, communications, entertainment, and other electronic devices. We currently generate revenue from the markets for smartphones, tablets, personal computer, or PC, products, primarily notebook computers, Internet of Things, or IoT, which includes devices with voice, speech and video within smart homes, and other select electronic devices, including devices in automobiles, with our custom human interface solutions. Every solution we deliver either contains or consists of our touch-, display driver-, fingerprint authentication-based-, voice and speech-, or video-semiconductor solutions, which include our chip, customer-specific firmware, and software. Our original equipment manufacturer, or OEM, customers include many of the world’s largest OEMs for smartphones, most of the world’s largest PC OEMs, and many large OEMs for voice, speech and video products.

The consolidated financial statements are presented in accordance with U.S. generally accepted accounting principles, or U.S. GAAP, and include our financial statements and those of our wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated upon consolidation.

Our fiscal year is the 52- or 53-week period ending on the last Saturday in June. The fiscal years presented in this report were 52-week periods ended June 29, 2019 and June 24, 2017 and a 53-week period ended June 30, 2018. For simplicity, the accompanying consolidated financial statements are labeled as ending on calendar year end dates as of and for all periods presented, unless otherwise indicated.

Use of Estimates

The preparation of consolidated financial statements in conformity with U.S. GAAP requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue, expenses, and related disclosure of contingent assets and liabilities. On an ongoing basis, we evaluate our estimates, including those related to revenue, allowance for doubtful accounts, cost of revenue, inventories, loss on purchase commitments, product warranty, accrued liabilities, share-based compensation costs, provision for income taxes, deferred income tax asset valuation allowances, uncertain tax positions, goodwill, intangible assets, investments, contingent consideration liability and loss contingencies. We base our estimates on historical experience, applicable laws and regulations, and various other assumptions that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

Cash Equivalents and Investments

Cash equivalents consist of highly liquid investments with original maturities of three months or less.

Our cash equivalents and investments classified as available-for-sale securities as of the end of fiscal 2019 and 2018 were as follows (in millions):

	2019
			Gross
	Amortized		Unrealized		Fair
	Cost		Gains		Value
Reported as cash equivalents:
Money market funds	$	313.7	$	—	$	313.7
Total available-for-sale securities	$	313.7	$	—	$	313.7

	2018
			Gross
	Amortized		Unrealized		Fair
	Cost		Gains		Value
Reported as cash equivalents:
Money market funds	$	275.2	$	—	$	275.2
Reported as non-current assets:
Auction rate securities		—		1.5		1.5
Total available-for-sale securities	$	275.2	$	1.5	$	276.7

Fair Value

We measure certain financial assets and liabilities at fair value. When we measure fair value on either a recurring or nonrecurring basis, inputs used in valuation techniques are assigned a hierarchical level as follows:

•

Level 1 inputs are observable inputs that reflect quoted prices for identical assets or liabilities in active markets.

•

Level 2 inputs reflect quoted prices for identical assets or liabilities in markets that are not active; quoted prices for similar assets or liabilities in active markets; inputs other than quoted prices that are observable for the assets or liabilities; or inputs that are derived principally from or corroborated by observable market data by correlation or other means.

•

Level 3 inputs are unobservable inputs reflecting our assumptions, which are incorporated into valuation techniques and models used to determine fair value. The assumptions are consistent with market participant assumptions that are reasonably available.

Financial assets measured at fair value on a recurring basis, by level within the fair value hierarchy, as of the end of fiscal 2019 and 2018 were as follows (in millions):

	2019						2018
	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Assets:
Money market	$	313.7	$	—	$	—	$	275.2	$	—	$	—
Auction rate securities		—		—		—		—		—		1.5
Total available-for-sale securities	$	313.7	$	—	$	—	$	275.2	$	—	$	1.5

Changes in fair value of our Level 3 financial assets for fiscal 2019 and 2018 were as follows (in millions):

	2019			2018
Beginning balance	$	1.5		$	1.5
Redemptions		(1.5	)		—
Ending balance	$	—		$	1.5

There were no transfers in or out of our Level 1, 2 or 3 assets during fiscal 2019 or 2018.

The fair values of our accounts receivable and accounts payable approximate their carrying values because of the short-term nature of those instruments. Intangible assets, property and equipment, and goodwill are measured at fair value on a non-recurring basis if impairment is indicated. The interest rate on our bank debt is variable, which is subject to change from time to time to reflect a market interest rate; accordingly, the carrying value of our bank debt approximates fair value.

Concentration of Credit Risk

Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash equivalents, investments, and accounts receivable. Our investment policy, which is predicated on capital preservation and liquidity, limits investments to U.S. government treasuries and agency issues, taxable securities, and municipal issued securities with a minimum rating of A1 (Moody’s) or P1 (Standard and Poor’s) or their equivalent.

We sell our products to contract manufacturers that provide manufacturing services for OEMs, and to some OEMs directly. We extend credit based on an evaluation of a customer’s financial condition, and we generally do not require collateral.

The following customers accounted for more than 10% of our accounts receivable balance as of the end of fiscal 2019 and 2018:

	2019	2018
Customer A	25%	13%
Customer B	16%	*
Customer C	*	11%
Customer D	*	10%

*	Less than 10%

Other Concentrations

Our products include certain components that are currently single sourced. We believe other vendors would be able to provide similar components, however, the qualification of such vendors may require additional lead time. In order to mitigate any potential adverse impact from a supply disruption, we strive to maintain an adequate supply of critical single-sourced components.

Revenue Recognition

Change in Accounting Policy

In May 2014, the Financial Accounting Standards Board, or FASB, issued an Accounting Standards Update, or ASU, on revenue from contracts with customers, ASU No. 2014-09, Revenue from Contracts with Customers, or the new revenue standard. The new revenue standard outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers.

We adopted the new revenue standard at the beginning of our fiscal 2019, using the modified retrospective method applied to all contracts not completed as of the adoption date. Results for reporting periods ending after our fiscal 2018 are presented under the new revenue standard, while prior reporting periods are not adjusted and continue to be reported in accordance with the previous revenue standard. Recognition of revenue has remained substantially unchanged under the new revenue standard as compared to the previous revenue standard. Accordingly, there was no adjustment to the fiscal 2019 opening retained earnings. However, due to the adoption of the new revenue standard, we reclassified certain amounts of incentive items to other accrued liabilities in our consolidated balance sheets as of June 30, 2019, and presented them as part of customer obligations, from the contra accounts receivable. Such information is as follows (in millions):

Adjustments reflected in the consolidated balance sheets:

	As of June 30, 2019
						Pro forma as if
	As reported under					previous standard
	new standard		Adjustments			was in effect
Accounts receivable, net	$	230.0	$	(5.0	)	$	225.0
Inventories		158.7		0.9			159.6
Prepaid expenses and other current assets		14.6		(0.9	)		13.7
Total assets		1,409.8		(5.0	)		1,404.8

Other accrued liabilities		106.1		(5.0	)		101.1
Total liabilities and stockholders' equity		1,409.8		(5.0	)		1,404.8

Adjustments reflected in the consolidated statement of cash flows:

	Twelve Months Ended June 30, 2019
							Pro forma as if
	As reported under						previous standard
	new standard			Adjustments			was in effect
Cash flows from operating activities:
Accounts receivable, net	$	64.3		$	(0.2	)	$	64.1
Inventories		(27.5	)		(0.6	)		(28.1	)
Prepaid expenses and other current assets		3.6			0.6			4.2
Other accrued liabilities		20.5			0.2			20.7

Revenue from contracts with customers disaggregated by geographic area based on customer location and groups of similar products is presented in Note 12. Segment, Customers, and Geographical Information.

Revenue Recognition

Our revenue is primarily generated from the sale of ASIC chips, either directly to a customer or to a distributor. Revenues are recognized when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to receive in exchange for those goods or services. All of our revenue, except an inconsequential amount, is recognized at a point in time, either on shipment or delivery of the product, depending on customer terms and conditions. We generally warrant our products for a period of 12 months from the date of sale and estimate probable product warranty costs at the time we recognize revenue as the warranty is considered an assurance warranty and not a performance obligation. Non-product revenue is recognized over the same period of time such performance obligations are satisfied. We then select an appropriate method for measuring satisfaction of the performance obligations.

Revenue from sales to distributors is recognized upon shipment of the product to the distributors (sell-in basis). Master sales agreements are in place with certain customers, and these agreements typically contain terms and conditions with respect to payment, delivery, warranty and supply. In the absence of a master sales agreement, we consider a customer's purchase order or our standard terms and conditions to be the contract with the customer.

Our pricing terms are negotiated independently, on a stand-alone basis. In determining the transaction price, we evaluate whether the price is subject to refund or adjustment to determine the net consideration which we expect to receive for the sale of such products. In limited situations, we make sales to certain customers under arrangements where we grant stock rotation rights, price protection and price allowances; variable consideration associated with these rights is expected to be inconsequential. These adjustments and incentives are accounted for as variable consideration, classified as other current liabilities under the new revenue standard and are shown as customer obligations in other accrued liabilities on our consolidated balance sheets. We estimate the amount of variable consideration for such arrangements based on the expected value to be provided to customers, and we do not believe that there will be significant changes to our estimates of variable consideration. When incentives, stock rotation rights, price protection, volume discounts, or price allowances are applicable, they are estimated and recorded in the period the related revenue is recognized. Stock rotation reserves are based on historical return rates and recorded as a reduction to revenue with a corresponding reduction to cost of goods sold for the estimated cost of inventory that is expected to be returned and recorded as prepaid expenses and other current assets. In limited circumstances, we enter into volume-based tiered pricing arrangements and we estimate total unit volumes under such arrangement to determine the expected transaction price for the units expected to be transferred. Such arrangements are accounted for as contract liabilities within other accrued liabilities. Sales returns liabilities are recorded as refund liabilities within other accrued liabilities.

Our accounts receivable balance is from contracts with customers and represents our unconditional right to receive consideration from customers. Payments are generally due within three months of completion of the performance obligation and subsequent invoicing and, therefore, do not include significant financing components. To date, there have been no material impairment losses on accounts receivable. There were no contract assets (i.e., unbilled accounts receivable, deferred commissions) recorded on the consolidated balance sheets in the periods presented. Contract liabilities and refund liabilities were $4.5 million and $47.5 million, respectively, as of June 30, 2019 and $1.1 million and $31.6 million, respectively, as of July 1, 2018, the beginning of fiscal 2019. Both contract liabilities and refund liabilities are presented as part of customer obligations in other accrued liabilities on our consolidated balance sheets. During fiscal 2019, we recognized $0.3 million in revenue related to contract liabilities outstanding as of the beginning of fiscal 2019.

We invoice customers for each delivery upon shipment and recognize revenue in accordance with delivery terms. As of June 30, 2019, we did not have any remaining unsatisfied performance obligations with an original duration greater than one year. Accordingly, under the optional exception provided by the ASC, we do not disclose revenues allocated to future performance obligations of partially completed contracts. We have elected to account for shipping and handling costs as fulfillment costs before the customer obtains control of the goods. We continue to classify shipping and handling costs as a cost of revenue. We have elected to continue to account for collection of all taxes on a net basis.

We incur commission expense that is incremental to obtaining contracts with customers. Sales commissions (which are recorded in the selling, general and administrative expense line item in the consolidated statements of operations) are expensed when the product is shipped because such commissions are owed after shipment.

Revenue from contracts with customers disaggregated by geographic area based on customer location and groups of similar products is presented in Note 12 Segment, Customers, and Geographical Information.

Advertising Costs

Advertising costs, if any, are expensed when incurred.

Allowance for Doubtful Accounts

We maintain allowances for doubtful accounts for estimated losses resulting from the inability of customers to meet their financial obligations. On an ongoing basis, we evaluate the collectability of accounts receivable based on a combination of factors. In circumstances in which we are aware of a specific customer’s potential inability to meet its financial obligation, we record a specific reserve of the bad debt against amounts due. In addition, we make judgments and estimates on the collectability of accounts receivable based on our historical bad debt experience, customers’ creditworthiness, current economic trends, recent changes in customers’ payment trends, and deterioration in customers’ operating results or financial position. If circumstances change adversely, additional bad debt allowances may be required. For all periods presented, credit losses on our accounts receivable have been insignificant, and we believe that an adequate allowance for doubtful accounts has been provided.

Cost of Revenue

Our cost of revenue includes the cost of products shipped to our customers, which primarily includes the cost of products built to our specifications by our contract manufacturers, the cost of silicon wafers supplied by independent semiconductor wafer manufacturers, and the related assembly, package, and test costs of our products. Also included in our cost of revenue are personnel and related costs, including share-based compensation for quality assurance and manufacturing support personnel; logistics costs; depreciation of equipment supporting manufacturing; acquired intangibles amortization; fair value adjustments associated with acquired businesses; inventory write-downs and losses on purchase obligations; and warranty costs.

Inventories

Inventories are stated at the lower of cost (first-in, first-out method) or net realizable value as of the end of fiscal 2019 and 2018 and consisted of the following (in millions):

	2019		2018
Raw materials and work-in-progress	$	110.7	$	105.0
Finished goods		48.0		26.2
	$	158.7	$	131.2

We record a write-down, if necessary, to reduce the carrying value of inventory to its net realizable value. The effect of these write-downs is to establish a new cost basis in the related inventory, which we do not subsequently write up. We also record a liability and charge to cost of revenue for estimated losses on inventory we are obligated to purchase from our contract manufacturers when such losses become probable from customer delays, order cancellations, or other factors.

Property and Equipment

We state property and equipment at cost less accumulated depreciation and amortization. We compute depreciation using the straight-line method over the estimated useful lives of the assets. We amortize leasehold improvements over the shorter of the lease term or the useful life of the asset.

Other Assets

In April 2017, we paid $18.4 million for a 14.4% interest in OXi Technology Ltd., or OXi. In April 2019, our investment ownership was reduced to 13.8% as a result of new investment in OXi. Our investment in OXi is included in non-current other assets on our consolidated balance sheets. We determined the equity method of accounting applies to our investment as we have significant influence over OXi’s operating and financial policies. We record our portion of OXi’s net income/(loss) on a one quarter lag due to the timing of the availability of OXi’s financial records. In addition, we amortize intangible assets that we recorded under the equity method of accounting, and such amortization as well as our portion of Oxi’s net income/(loss) is included in equity investment loss on our consolidated statements of operations. As of June 30, 2019, we did not have any material related party transactions with OXi. As our investment in OXi is not material in relation to our financial position or results of operations, we have not summarized information as to the assets, liabilities and results of operations of OXi.

Foreign Currency

The U.S. dollar is our functional and reporting currency. We remeasure our monetary assets and liabilities not denominated in the functional currency into U.S. dollar equivalents at the rate of exchange in effect on the balance sheet date. We measure and record non-monetary balance sheet accounts at the historical rate in effect at the date of transaction. We remeasure foreign currency expenses at the weighted average exchange rate in the month that the transaction occurred. These foreign currency transactions and remeasurement gains and losses, resulted in a net loss of $1.1 million, $1.1 million and $0.7 million in fiscal 2019, 2018, and 2017, respectively. Gains and losses resulting from foreign currency transactions are included in selling, general, and administrative expenses in the consolidated statements of operations.

Goodwill

Goodwill represents the excess of the purchase price over the fair value of net tangible and identifiable intangible assets acquired. Changes in our goodwill balance for fiscal 2019 and 2018 were as follows (in millions):

	2019		2018
Beginning balance	$	372.8	$	206.8
Acquisition activity		—		166.0
Ending balance	$	372.8	$	372.8

We have allocated our goodwill to two reporting units. We perform a qualitative assessment of the goodwill in the fourth quarter of each fiscal year, or earlier if there is a triggering event. In assessing the qualitative factors, we considered the impact of key factors including change in industry and competitive environment, market capitalization, stock price, gross margin and cash flow from operating activities. During our qualitative assessment in fiscal 2019, we determined there were triggering events which led us to performing a step 1 quantitative assessment. We concluded that the fair value of the reporting units exceeded their carrying amount by a significant amount, therefore, there is no need for impairment. No goodwill impairment was recognized for fiscal 2019, 2018, and 2017.

Impairment of Long-Lived Assets

We evaluate long-lived assets, such as property and equipment and intangible assets subject to amortization, for impairment whenever events or changes in circumstances indicate that the carrying value of an asset may not be recoverable. We measure recoverability of assets to be held and used by a comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. We review the carrying value of indefinite-lived intangible assets for impairment at least annually during the last quarter of our fiscal year, or more frequently if we believe indicators of impairment exist. If the carrying amount of the asset exceeds its estimated undiscounted future cash flows, we recognize an impairment charge in an amount by which the carrying amount of the asset exceeds the fair value of the asset. Assets to be disposed of would be separately presented in the consolidated balance sheets and reported at the lower of the carrying amount or fair value less costs to sell and would no longer be depreciated. The assets and liabilities of a disposed

group classified as held for sale would be presented separately in the appropriate asset and liability sections of the consolidated balance sheets. No impairment of long-lived assets was recognized for fiscal 2019, 2018 and 2017.

Other Accrued Liabilities

As of the end of fiscal 2019 and 2018, other accrued liabilities consisted of the following (in millions):

	2019		2018
Customer obligations	$	52.0	$	26.4
Inventory obligations		26.7		28.8
Warranty		4.0		5.5
Other		23.4		19.0
	$	106.1	$	79.7

Retention Costs

Retention costs reflect the cost associated with retention agreements entered into with key employees designed to ensure their continued commitment to the support and management of the operations of the company during the transition to new executive leadership. The retention period for employees covered under the retention program continues through November 2020. For the year ended June 30, 2019, the retention costs are broken down between cost of revenue ($0.1) million, research and development ($1.5) million and selling, general and administrative ($0.9) million.

Segment Information

We operate in one segment: the development, marketing, and sale of intuitive human interface solutions for electronic devices and products. The chief operating decision maker, or CODM, was the chief executive officer, or CEO, through mid-March and upon the departure of our CEO, our Board of Directors collectively became our CODM, on a temporary basis. Our CODMs evaluate financial performance and allocate resources using financial information reported on a company-wide basis.

Share-Based Compensation

We utilize the Black-Scholes option pricing model to estimate the grant date fair value of stock options granted to employees, which requires the input of highly subjective assumptions, including expected volatility and expected life. Historical and implied volatilities were used in estimating the fair value of our stock option awards. The contractual life of our outstanding options is seven years for options granted under our Amended and Restated 2010 Incentive Compensation Plan, or our 2010 Plan, or 10 years for options granted under our Amended and Restated 2001 Incentive Compensation Plan, or our 2001 Plan. Our outstanding options have vesting periods of three or four years, depending on when they were granted, and we used the simplified method to establish the expected life. Changes in these inputs and assumptions can materially affect the measure of estimated fair value of our share-based compensation. In fiscal years prior to 2018, we estimated forfeitures for share-based awards that were not expected to vest. See Note 9 Share-Based Compensation for further discussion on estimated forfeitures. No options were granted in fiscal 2019.

We charge the estimated fair value less actual forfeitures to earnings on a straight-line basis over the vesting period of the entire underlying award, which is generally three to four years for our stock options and deferred stock units, or DSU, awards, three years for our market stock units, or MSU, awards, three years for our performance stock units, or PSU, awards, and up to two years for shares purchased under our employee stock purchase plan.

We estimate the fair value of market-based MSUs at the date of grant using a Monte Carlo simulation model and amortize those fair values over the requisite service period, which is generally three years. The Monte Carlo simulation model that we use to estimate the fair value of market-based MSUs at the date of grant incorporates into the valuation the possibility that the market condition may not be satisfied. Provided that the requisite service is rendered, the total fair value of the market-based MSUs at the date of grant must be recognized as compensation expense even if the market condition is not achieved. However, the number of shares that ultimately vest can vary significantly with the performance of the specified market criteria.

Income Taxes

We account for income taxes under the asset and liability method. We recognize deferred tax assets and liabilities for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, and operating loss and tax credit carryforwards. We measure deferred tax assets and liabilities using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. We recognize the effect of a change in tax rates in income on deferred tax assets and liabilities in the period that includes the enactment date. We establish valuation allowances when necessary to reduce deferred tax assets to the amounts that are more likely than not to be realized.

We use a two-step approach to recognizing and measuring uncertain tax positions. The first step is to determine whether it is more-likely-than-not that a tax position will be sustained upon examination, including resolution of any related appeals or litigation processes. The second step is to measure the tax benefit as the largest amount that is more than 50% likely of being realized upon ultimate settlement with a taxing authority. The calculation of tax liabilities involves significant judgment in estimating the impact of uncertainties in the application of highly complex tax laws. Resolution of these uncertainties in a manner inconsistent with our expectations could have a material impact on our consolidated financial position, results of operations, and cash flows. We believe we have adequately provided for reasonably foreseeable outcomes in connection with the resolution of income tax uncertainties. However, our results have in the past, and could in the future, include favorable and unfavorable adjustments to our estimated tax liabilities in the period a determination of such estimated tax liability is made or resolved, upon the filing of an amended return, upon a change in facts, circumstances, or interpretation, or upon the expiration of a statute of limitation. Accordingly, our effective tax rate could fluctuate materially from period to period.

Research and Development

Research and development costs are expensed as incurred.

Share-Based Compensation - Fair Value of Each Award Granted Under Stock Option Plans (Detail) - $ / shares	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Stock option outstanding [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility		46.20%
Expected life in years		4 years 4 months 24 days
Risk-free interest rate		1.80%
Fair value per award		$ 18.04	$ 21.08
Market stock units outstanding [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility	50.58%		52.54%
Expected life in years	2 years 10 months 17 days		2 years 11 months 1 day
Risk-free interest rate	2.92%		1.01%
Fair value per award			$ 67.51
Correlation coefficient	51.00%		45.00%
Market stock units outstanding [Member] \| SOX Index [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility	23.40%		21.23%
Minimum [Member] \| Stock option outstanding [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility			45.20%
Expected life in years			3 years 9 months 18 days
Risk-free interest rate			1.03%
Minimum [Member] \| Market stock units outstanding [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility		49.16%
Expected life in years		2 years 9 months 18 days
Risk-free interest rate		1.72%
Fair value per award		$ 48.22
Correlation coefficient		52.00%
Minimum [Member] \| Market stock units outstanding [Member] \| SOX Index [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility		22.37%
Maximum [Member] \| Stock option outstanding [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility			48.30%
Expected life in years			4 years 7 months 6 days
Risk-free interest rate			1.94%
Maximum [Member] \| Market stock units outstanding [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility		50.60%
Expected life in years		2 years 11 months 1 day
Risk-free interest rate		1.88%
Fair value per award		$ 59.19
Correlation coefficient		53.00%
Maximum [Member] \| Market stock units outstanding [Member] \| SOX Index [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility		22.52%

Income Taxes - Provision for Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Current tax expense/(benefit)
Federal	$ (4.9)	$ 21.5	$ 9.6
Foreign	20.4	14.1	25.5
Current Income Tax Expense, Total	15.5	35.6	35.1
Deferred tax expense/(benefit)
Federal	(8.5)	14.4	(10.6)
Foreign	(6.7)	(9.5)	(12.3)
Deferred Income Tax Expense/(Benefit), Total	(15.2)	4.9	(22.9)
Provision for income taxes	$ 0.3	$ 40.5	$ 12.2

Property and Equipment - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Property Plant And Equipment Useful Life And Values [Abstract]
Retirement of fully amortized property	$ 16.8	$ 8.2

Stockholders' Equity

12 Months Ended

Jun. 29, 2019

Equity [Abstract]

Stockholders' Equity

8.	Stockholders’ Equity

Preferred Stock

We are authorized, subject to limitations imposed by Delaware law, to issue up to a total of 10,000,000 shares of preferred stock in one or more series without stockholder approval. Our Board of Directors has the power to establish, from time to time, the number of shares to be included in each series and to fix the rights, preferences, and privileges of the shares of each wholly unissued series and any of its qualifications, limitations, or restrictions. Our Board of Directors can also increase or decrease the number of shares of a series, but not below the number of shares of that series then outstanding, without any further vote or action by the stockholders.

Our Board of Directors may authorize the issuance of preferred stock with voting or conversion rights that could harm the voting power or other rights of the holders of our common stock. The issuance of preferred stock, while providing flexibility in connection with possible acquisitions and other corporate purposes, could, among other things, have the effect of delaying, deferring, or preventing a change in control of our company and might harm the market price of our common stock and the voting power and other rights of the holders of our common stock. As of the end of fiscal 2019, there were no shares of preferred stock outstanding.

Shares Reserved for Future Issuance

Shares of common stock reserved for future issuance as of the end of fiscal 2019 were as follows:

Stock options outstanding			1,191,929
Deferred stock units outstanding			1,878,853
Market stock units outstanding			210,732
Performance stock units outstanding			192,618
Awards available for grant under all share-based compensation plans			2,891,466
Reserved for future issuance			6,365,598

Treasury Stock

Our cumulative authorization for our common stock repurchase program as of the end of fiscal 2019 is $1.3 billion, which was set to expire in July 2019. The program authorizes us to repurchase our common stock in the open market or in privately negotiated transactions depending upon market conditions and other factors. The number of shares repurchased and the timing of repurchases is based on the level of our cash balances, general business and market conditions, and other factors, including alternative investment opportunities. Common stock repurchased under this program is held as treasury stock. As of the end of fiscal 2019, we had $107.6 million remaining under our common stock repurchase program. In August 2019, our Board of Directors authorized the purchase of up to an additional $100.0 million of our common stock and extended the stock repurchase program through July 2021.

Share Based Compensation - Balance of Outstanding and Exercisable Stock Options (Detail) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 29, 2019 USD ($) $ / shares shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock Option Awards Outstanding, Balance at June 2018 \| shares	1,618,209
Stock Option Awards Outstanding, Exercised \| shares	(177,823)
Stock Option Awards Outstanding, Forfeited \| shares	(57,091)
Stock Option Awards Outstanding, Expired \| shares	(191,366)
Stock Option Awards Outstanding, Balance at June 2019 \| shares	1,191,929
Stock Option Awards Outstanding, Exercisable at June 2019 \| shares	1,163,841
Weighted Average Exercise Price, Balance at June 2018 \| $ / shares	$ 57.14
Weighted Average Exercise Price, Exercised \| $ / shares	29.16
Weighted Average Exercise Price, Forfeited \| $ / shares	52.96
Weighted Average Exercise Price, Expired \| $ / shares	72.40
Weighted Average Exercise Price, Balance at June 2019 \| $ / shares	59.07
Weighted Average Exercise Price, Exercisable at June 2019 \| $ / shares	$ 59.23
Intrinsic Value, Balance at June 2019 \| $	$ 0.4
Intrinsic Value, Exercisable at June 2019 \| $	$ 0.4

Segment, Customers, and Geographic Information - Net Revenue from External Customers (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Revenue from External Customer [Line Items]
Net revenue	$ 1,472.2	$ 1,630.3	$ 1,718.2
Mobile Product Applications [Member]
Revenue from External Customer [Line Items]
Net revenue	900.1	1,021.0	1,406.0
PC Product Applications [Member]
Revenue from External Customer [Line Items]
Net revenue	258.9	257.8	229.2
Internet of Things Product Applications [Member]
Revenue from External Customer [Line Items]
Net revenue	$ 313.2	$ 351.5	$ 83.0

Income Taxes - Reconciliation of Gross Unrecognized Tax Benefits (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Income Tax Disclosure [Abstract]
Beginning balance	$ 24.8	$ 15.2	$ 13.4
Increase in unrecognized tax benefits related to current year tax positions	4.2	10.5	2.5
Increase in unrecognized tax benefits related to prior year tax positions			0.1
Decrease due to effective settlement with tax authorities	(6.2)
Remeasurement of unrecognized tax benefits	(2.0)
Decrease due to statute expiration	(1.9)	(0.9)	(0.8)
Ending Balance	$ 18.9	$ 24.8	$ 15.2

Acquired Intangibles - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Finite-Lived Intangible Assets [Line Items]
Acquired intangibles amortization	$ 74.4	$ 83.9	$ 59.3
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Disposal group including discontinued operation, intangible assets		20.1
Fingerprint Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Disposal group including discontinued operation, intangible assets	8.5	4.3
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Disposal group including discontinued operation, intangible assets	0.2	$ 0.1
Licensed Technology and Other [Member]
Finite-Lived Intangible Assets [Line Items]
Disposal group including discontinued operation, intangible assets	1.3
Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Disposal group including discontinued operation, intangible assets	$ 0.5

Share-Based Compensation - Balance and Aggregate Intrinsic Value of Stock Units (Detail) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 29, 2019 USD ($) $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Unit Awards, Granted	163,059
Stock Unit Awards, Performance adjustment	(46,663)
Stock Unit Awards, Performance adjustment	1,065
Deferred stock units outstanding [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Unit Awards Outstanding, Balance at June 30, 2018	1,853,558
Stock Unit Awards, Granted	1,266,131
Stock Unit Awards, Delivered	(729,564)
Stock Unit Awards, Forfeited	(511,272)
Stock Unit Awards Outstanding, Balance at June 29, 2019	1,878,853
Stock Unit Awards Outstanding, Balance at June 29, 2019 \| $	$ 54.7
Stock Unit Awards Outstanding, Balance at June 30, 2018 \| $ / shares	$ 49.75
Weighted Average Grant Date Fair Value, Granted \| $ / shares	36.90
Weighted Average Grant Date Fair Value, Delivered \| $ / shares	54.67
Weighted Average Grant Date Fair Value, Forfeited \| $ / shares	43.49
Stock Unit Awards Outstanding, Balance at June 29, 2019 \| $ / shares	$ 40.90
Market stock units outstanding [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Unit Awards Outstanding, Balance at June 30, 2018	354,726
Stock Unit Awards, Granted	163,059
Stock Unit Awards, Performance adjustment	(46,663)
Stock Unit Awards, Delivered	(92,202)
Stock Unit Awards, Forfeited	(168,188)
Stock Unit Awards Outstanding, Balance at June 29, 2019	210,732
Stock Unit Awards Outstanding, Balance at June 29, 2019 \| $	$ 6.1
Stock Unit Awards Outstanding, Balance at June 30, 2018 \| $ / shares	$ 59.37
Weighted Average Grant Date Fair Value, Granted \| $ / shares	46.69
Weighted Average Grant Date Fair Value, Delivered \| $ / shares	53.33
Weighted Average Grant Date Fair Value, Forfeited \| $ / shares	59.41
Stock Unit Awards Outstanding, Balance at June 29, 2019 \| $ / shares	$ 52.15
Performance stock units outstanding [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Unit Awards Outstanding, Balance at June 30, 2018	294,541
Stock Unit Awards, Granted	147,005
Stock Unit Awards, Performance adjustment	1,065
Stock Unit Awards, Delivered	(92,470)
Stock Unit Awards, Forfeited	(157,523)
Stock Unit Awards Outstanding, Balance at June 29, 2019	192,618
Stock Unit Awards Outstanding, Balance at June 29, 2019 \| $	$ 5.6
Stock Unit Awards Outstanding, Balance at June 30, 2018 \| $ / shares	$ 39.48
Weighted Average Grant Date Fair Value, Granted \| $ / shares	35.41
Weighted Average Grant Date Fair Value, Delivered \| $ / shares	39.54
Weighted Average Grant Date Fair Value, Forfeited \| $ / shares	37.00
Stock Unit Awards Outstanding, Balance at June 29, 2019 \| $ / shares	$ 38.35

Property and Equipment (Tables)

12 Months Ended

Jun. 29, 2019

Property Plant And Equipment [Abstract]

Property and Equipment

Property and equipment as of the end of fiscal 2019 and 2018 consisted of the following (in millions):

	Life	2019			2018
Land	—	$	13.3		$	13.3
Building and building improvements	Up to 35 years		52.7			51.8
Computer equipment	3 - 5 years		48.2			42.9
Manufacturing equipment	1 - 5 years		63.0			78.1
Furniture, fixtures, and leasehold improvements	3 - 10 years		25.1			24.1
Capitalized software	3 - 7 years		33.8			35.0
			236.1			245.2
Accumulated depreciation and amortization			(133.1	)		(127.4	)
Property and equipment, net		$	103.0		$	117.8

Organization and Summary of Significant Accounting Policies - Other Accrued Liabilities (Detail) - USD ($) $ in Millions	Jun. 29, 2019	Jun. 30, 2018
Payables And Accruals [Abstract]
Customer obligations	$ 52.0	$ 26.4
Inventory obligations	26.7	28.8
Warranty	4.0	5.5
Other	23.4	19.0
Other accrued liabilities	$ 106.1	$ 79.7

Share-Based Compensation - Cash Received and Aggregate Intrinsic Value of Stock Options Exercised (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Cash received	$ 5.2	$ 16.7	$ 10.7
Aggregate intrinsic value	$ 2.4	$ 15.2	$ 12.3

Net Income/(Loss) Per Share (Tables)

12 Months Ended

Jun. 29, 2019

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net Income Per Share

The computation of basic and diluted net income per share for fiscal 2019, 2018, and 2017 was as follows (in millions, except per share amounts):

	2019			2018			2017
Numerator:
Net income/(loss)	$	(22.9	)	$	(124.1	)	$	48.8
Denominator:
Shares, basic		34.6			34.2			34.8
Effect of dilutive share-based awards		—			—			0.8
Shares, diluted		34.6			34.2			35.6
Net income/(loss) per share:
Basic	$	(0.66	)	$	(3.63	)	$	1.40
Diluted	$	(0.66	)	$	(3.63	)	$	1.37

Share-Based Awards, not Included in Calculation of Diluted Net Income Per Share

Diluted net income per share does not include the effect of potential common shares related to certain share-based awards for fiscal 2019, 2018, and 2017 as follows (in millions):

		2019				2018				2017
Share-based awards			2.2				2.3				1.4

Acquisitions - Additional Information (Detail) - USD ($) $ in Millions				12 Months Ended
	Sep. 08, 2017	Jul. 25, 2017	Jun. 11, 2017	Jun. 29, 2019	Jun. 30, 2018
Business Acquisition [Line Items]
Issuance of common stock for acquisition, value					$ 39.1
Acquired intangible assets amortize over an estimated weighted average useful life				4 years 4 months 24 days
Customer Relationships [Member]
Business Acquisition [Line Items]
Acquired intangible assets amortize over an estimated weighted average useful life				4 years 1 month 6 days
Backlog [Member]
Business Acquisition [Line Items]
Acquired intangible assets amortize over an estimated weighted average useful life				0 years
Conexant Systems, LLC [Member]
Business Acquisition [Line Items]
Acquired intangible assets		$ 145.7
Conexant Systems, LLC [Member] \| Securities Purchase Agreement [Member]
Business Acquisition [Line Items]
Acquisition agreement date			Jun. 11, 2017
Acquisition closing effective date		Jul. 25, 2017
Purchase price of acquisition		$ 305.4
Issuance of common stock for acquisition, shares		726,666
Issuance of common stock for acquisition, value		$ 39.1
Business acquisition stock appreciation rights liability		3.5
Purchase price held in escrow		16.8
Business combination purchase price adjustment		1.9
Business combination, consideration transferred		346.2
Acquired intangible assets					$ 145.7
Conexant Systems, LLC [Member] \| Securities Purchase Agreement [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Identified intangible assets included discount rates					14.00%
Conexant Systems, LLC [Member] \| Securities Purchase Agreement [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Identified intangible assets included discount rates					9.00%
Conexant Systems, LLC [Member] \| Securities Purchase Agreement [Member] \| Developed Technology [Member]
Business Acquisition [Line Items]
Acquired intangible assets					$ 104.9
Acquired intangible assets amortize over an estimated weighted average useful life					6 years
Conexant Systems, LLC [Member] \| Securities Purchase Agreement [Member] \| Customer Relationships [Member]
Business Acquisition [Line Items]
Acquired intangible assets					$ 38.4
Acquired intangible assets amortize over an estimated weighted average useful life					5 years
Conexant Systems, LLC [Member] \| Securities Purchase Agreement [Member] \| Trademarks [Member]
Business Acquisition [Line Items]
Acquired intangible assets					$ 1.8
Acquired intangible assets amortize over an estimated weighted average useful life					7 years
Conexant Systems, LLC [Member] \| Securities Purchase Agreement [Member] \| Backlog [Member]
Business Acquisition [Line Items]
Acquired intangible assets					$ 0.4
Conexant Systems, LLC [Member] \| Securities Purchase Agreement [Member] \| Backlog [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Acquired intangible assets amortize over an estimated weighted average useful life				3 years	1 year
Conexant Systems, LLC [Member] \| Securities Purchase Agreement [Member] \| In-Process Research and Development [Member]
Business Acquisition [Line Items]
Acquired intangible assets					$ 0.2
Conexant Systems, LLC [Member] \| Securities Purchase Agreement [Member] \| Escrow Obligations Under Purchase Agreement [Member]
Business Acquisition [Line Items]
Purchase price held in escrow		$ 7.0
Marvell Technology Group Ltd [Member]
Business Acquisition [Line Items]
Acquired intangible assets	$ 48.7
Marvell Technology Group Ltd [Member] \| Asset Purchase Agreement [Member]
Business Acquisition [Line Items]
Acquisition agreement date			Jun. 11, 2017
Acquisition closing effective date	Sep. 08, 2017
Purchase price of acquisition	$ 93.7
Acquired intangible assets	$ 48.7
Marvell Technology Group Ltd [Member] \| Asset Purchase Agreement [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Identified intangible assets included discount rates	32.00%
Marvell Technology Group Ltd [Member] \| Asset Purchase Agreement [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Identified intangible assets included discount rates	14.00%
Marvell Technology Group Ltd [Member] \| Asset Purchase Agreement [Member] \| Developed Technology [Member]
Business Acquisition [Line Items]
Acquired intangible assets	$ 29.0
Acquired intangible assets amortize over an estimated weighted average useful life	3 years 7 months 6 days
Marvell Technology Group Ltd [Member] \| Asset Purchase Agreement [Member] \| Customer Relationships [Member]
Business Acquisition [Line Items]
Acquired intangible assets	$ 15.1
Acquired intangible assets amortize over an estimated weighted average useful life	4 years
Marvell Technology Group Ltd [Member] \| Asset Purchase Agreement [Member] \| Backlog [Member]
Business Acquisition [Line Items]
Acquired intangible assets	$ 0.1
Marvell Technology Group Ltd [Member] \| Asset Purchase Agreement [Member] \| Backlog [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Acquired intangible assets amortize over an estimated weighted average useful life	1 year
Marvell Technology Group Ltd [Member] \| Asset Purchase Agreement [Member] \| In-Process Research and Development [Member]
Business Acquisition [Line Items]
Acquired intangible assets	$ 4.5

Debt - Additional Information (Detail)			3 Months Ended	12 Months Ended
Debt - Additional Information (Detail)	Jun. 26, 2017 USD ($) shares	Jun. 20, 2017 USD ($) Day $ / shares shares	Sep. 30, 2017 USD ($)	Jun. 29, 2019 USD ($) shares	Jun. 30, 2018 USD ($) shares	Jun. 24, 2017 USD ($)	Mar. 31, 2018 USD ($)	Jul. 31, 2017 USD ($)
Debt Instrument [Line Items]
Number of shares of common stock repurchase \| shares				30,934,213	27,639,876
Remaining debt issuance costs expensed				$ 500,000	$ 1,600,000	$ 1,200,000
Debt issuance cost					$ 1,100,000	1,200,000
Percentage of voting capital stock				65.00%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Outstanding principal amount						100,000,000.0
0.50% Convertible Senior Notes due 2022 [Member]
Debt Instrument [Line Items]
Debt instrument aggregate principal amount							$ 525,000,000.0
Credit Agreement [Member]
Debt Instrument [Line Items]
Outstanding principal amount						220,000,000.0
Credit Agreement [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility amount						450,000,000.0		$ 250,000,000.0
Amendment and Restatement Agreement [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt amortization period				60 months
Outstanding principal amount				$ 0
Line of credit facility amount			$ 200,000,000
Line of credit facility allowable requests for additional borrowing			100,000,000
Maturity period				Sep. 27, 2022
Repayment date, description				The revolving credit facility is required to be repaid in full on the earlier of (i) September 27, 2022, and (ii) the date 91 days prior to the Maturity Date of the Notes if the Notes have not been refinanced in full by such date
Debt issuance cost				$ 2,300,000
Description of base rate				The revolving credit facility bears interest at our election of a Base Rate plus an Applicable Margin or LIBOR plus an Applicable Margin. Swingline loans bear interest at a Base Rate plus an Applicable Margin. The Base Rate is a floating rate that is the greater of the Prime Rate, the Federal Funds Rate plus 50 basis points, or LIBOR plus 100 basis points. The Applicable Margin is based on a sliding scale which ranges from 0.25 to 100 basis points for Base Rate loans and 100 basis points to 175 basis points for LIBOR loans.
Revolving credit facility description				The LIBOR index is expected to be discontinued the end of 2021.
Covenant description				Under the Agreement, there are various restrictive covenants, including financial covenants which limit the consolidated total leverage ratio, or leverage ratio, the consolidated interest coverage ratio, or interest coverage ratio, a restriction which places a limit on the amount of capital expenditures that may be made in any fiscal year, a restriction that permits up to $50 million per fiscal quarter of accounts receivable financings, and sets the Specified Leverage Ratio. The leverage ratio is the ratio of debt as of the measurement date to earnings before interest, taxes, depreciation and amortization, or EBITDA, for the four consecutive quarters ending with the quarter of measurement. The current leverage ratio shall not exceed 3.50 to 1.00 provided that for the four fiscal quarters ending after the date of a material acquisition, such maximum leverage ratio shall be adjusted to 3.75 to 1.00, and thereafter, shall not be more than 3.50 to 1.00. The interest coverage ratio is EBITDA to interest expense for the four consecutive quarters ending with the quarter of measurement. The interest coverage ratio must not be less than 3.50 to 1.0 during the term of the Agreement. The Specified Leverage Ratio is the ratio used in determining, among other things, whether we are permitted to make dividends and/or prepay certain indebtedness, at a fixed ratio of 3.00 to 1.00. As of the end of the fiscal year, we were in compliance with the restrictive covenants.
Maximum accounts receivable financings per quarter				$ 50,000,000
Maximum leverage ratio permitted				3.50%
Minimum interest coverage ratio				3.50%
Fixed coverage ratio				3.00%
Amendment and Restatement Agreement [Member] \| Revolving Credit Facility [Member] \| For The First Four Fiscal Quarters Ending After Date of Material Acquisition [Member]
Debt Instrument [Line Items]
Maximum leverage ratio permitted				3.75%
Amendment and Restatement Agreement [Member] \| Revolving Credit Facility [Member] \| Thereafter [Member]
Debt Instrument [Line Items]
Maximum leverage ratio permitted				3.50%
Amendment and Restatement Agreement [Member] \| Revolving Credit Facility [Member] \| Federal Funds Rates [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				0.50%
Amendment and Restatement Agreement [Member] \| Revolving Credit Facility [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				1.00%
Amendment and Restatement Agreement [Member] \| Revolving Credit Facility [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Commitment fee percentage of unused portion				0.175%
Amendment and Restatement Agreement [Member] \| Revolving Credit Facility [Member] \| Minimum [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				1.00%
Amendment and Restatement Agreement [Member] \| Revolving Credit Facility [Member] \| Minimum [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				0.0025%
Amendment and Restatement Agreement [Member] \| Revolving Credit Facility [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Commitment fee percentage of unused portion				0.25%
Amendment and Restatement Agreement [Member] \| Revolving Credit Facility [Member] \| Maximum [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				1.75%
Amendment and Restatement Agreement [Member] \| Revolving Credit Facility [Member] \| Maximum [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				1.00%
Amendment and Restatement Agreement [Member] \| Letter of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility amount			20,000,000
Amendment and Restatement Agreement [Member] \| Bridge Loan [Member]
Debt Instrument [Line Items]
Line of credit facility amount			20,000,000
Purchase Agreement [Member] \| 0.50% Convertible Senior Notes due 2022 [Member] \| Wells Fargo Securities, LLC [Member]
Debt Instrument [Line Items]
Debt instrument aggregate principal amount		$ 500,000,000
Debt instrument additional aggregate principal amount		$ 25,000,000
Option to purchase additional principal amount of notes granted to initial purchasers, period		30 days
Net proceeds from issuance of convertible debt	$ 514,500,000
Number of shares of common stock repurchase \| shares	1,698,400
Interest rates on borrowings		0.50%
Debt instrument maturity date				Jun. 15, 2022
Conversion of notes in multiples of principal amounts		$ 1,000
Convertible number of shares, principal amount of notes \| shares		13.6947
Initial conversion price per share of common stock \| $ / shares		$ 73.02
Note repurchase price, percentage of principal amount of notes		100.00%
Sale price of common stock, minimum threshold percentage		130.00%
Sale of common stock, threshold trading days \| Day		20
Sale of common stock, threshold consecutive trading days \| Day		30
Equity component of the principal amount of the convertible debt		$ 82,100,000
Nonconvertible debt borrowing rate		4.39%
Debt instrument term		5 years
Debt issuance costs		$ 11,100,000
Initial purchaser’s discount		10,500,000
Legal, accounting, and printing costs		579,000
Convertible debt issuance costs pro rata to equity components		1,900,000
Convertible debt issuance costs pro rata to debt components		$ 9,200,000
Debt amortization period		5 years
Unamortized amounts of debt issuance costs				$ 5,700,000
Unamortized amounts of debt discount				$ 51,000,000.0
Term Loan Arrangement [Member]
Debt Instrument [Line Items]
Outstanding principal amount						$ 120,000,000.0
Term Loan Arrangement [Member] \| Amendment and Restatement Agreement [Member]
Debt Instrument [Line Items]
Remaining debt issuance costs expensed			$ 1,000,000.0

Debt - Schedule of Contractual Interest Expense and Amortization of Discount on Notes (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Debt Instrument [Line Items]
Amortization of discount and debt issuance costs	$ 17.6	$ 16.9
Purchase Agreement [Member] \| 0.50% Convertible Senior Notes due 2022 [Member] \| Wells Fargo Securities, LLC [Member]
Debt Instrument [Line Items]
Interest expense	2.6
Amortization of discount and debt issuance costs	17.6
Total interest	$ 20.2

Net Income/(Loss) Per Share - Share-Based Awards, not Included in Calculation of Diluted Net Income Per Share (Detail) - shares shares in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Share-Based Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Share-based awards	2.2	2.3	1.4

Share-Based Compensation - Additional Information (Detail) - USD ($) $ in Millions	Jun. 29, 2019	Jun. 24, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Net cumulative effect, change in amount		$ 25.7
Retained Earnings [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Net cumulative effect, change in amount		24.7
Additional Paid-in Capital [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Net cumulative effect, change in amount		$ 1.0
ASU for Compensation-Stock Compensation [Member] \| Retained Earnings [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Net cumulative effect, change in amount	$ 24.7
ASU for Compensation-Stock Compensation [Member] \| Additional Paid-in Capital [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Net cumulative effect, change in amount	1.0
Deferred Tax Assets for Research Credit and Alternative Minimum Tax Credit Carryforwards [Member] \| ASU for Compensation-Stock Compensation [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Net cumulative effect, change in amount	$ 25.7

Share-Based Compensation - Employee Stock Purchase Plan - Additional Information (Detail) $ in Millions	12 Months Ended
	Jun. 29, 2019 USD ($)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock purchases under Employee Stock Purchase Plan as a percentage of employee compensation, maximum, subject to legal restrictions and limitations	15.00%
Employee common stock purchases through payroll deductions under Employee Stock Purchase Plan, price as a percentage of fair market value	85.00%
Offering period extends under Employee Stock Purchase Plan	up to two years
Employee Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period of the underlying awards	2 years
Expected lives of the implied volatility	6 months
Historical volatility for expected lives	6 months
Unrecognized share-based compensation costs for stock options granted	$ 3.4
Period over which share-based compensation is amortized duration	4 months

Income Taxes

12 Months Ended

Jun. 29, 2019

Income Tax Disclosure [Abstract]

Income Taxes

11.	Income Taxes

On December 22, 2017, the U.S. government enacted comprehensive tax legislation, commonly known as the Tax Cuts and Jobs Act of 2017, or the Act, which significantly revised the Internal Revenue Code of 1986, as amended. The Act contains broad and complex changes to corporate taxation, including, in part, reduction of the U.S. federal corporate tax rate from 35% to 21%, requires companies to pay a one-time transition tax on earnings of certain foreign subsidiaries that were previously considered permanently reinvested, and creates new taxes on certain foreign sourced earnings. As our accounting and tax year is the fiscal period ending on the last Saturday in June, U.S. federal tax law requires that taxpayers with a fiscal year that spans the effective date of a rate change to calculate a blended tax rate based on the pro rata number of days in the fiscal year before and after the effective date. As a result, our U.S. federal tax rate for fiscal 2018 was a days-weighted blended tax rate of 28.17%. For fiscal 2019 and subsequent tax years, our U.S. federal tax rate is 21%.

Staff Accounting Bulletin 118 allows companies to record provisional amounts and recognize the effect of the tax law during a measurement period. The measurement period ended in the second quarter of our fiscal 2019. As of June 30, 2019, we have finalized our accounting for the tax impact of the Act. However, further technical guidance related to the Act, including final regulations on a broad range of topics, is expected to be issued and, as such, if our interpretation and final accounting are inconsistent with future regulations and guidance, we will recognize the impact as a discrete item in the period such guidance is issued.

The Global Intangible Low-Tax Income, or GILTI, which is a provision under the Act, imposes a tax on foreign income in excess of a deemed return on tangible assets of foreign corporations. GILTI requires an accounting policy election of either (1) treating taxes due on future U.S. inclusions in taxable income related to GILTI as a current period expense when incurred, or (2) factoring such amounts into the measurement of deferred taxes. We elected to treat GILTI as a period cost and recognize the impact in the period when it is incurred.

Income/(loss) before provision for income taxes for fiscal 2019, 2018, and 2017 consisted of the following (in millions):

	2019			2018			2017
United States	$	(40.6	)	$	(51.1	)	$	(10.1	)
Foreign		19.8			(30.7	)		71.4
Income/(loss) before provision for income taxes	$	(20.8	)	$	(81.8	)	$	61.3

The provision for income taxes for fiscal 2019, 2018, and 2017 consisted of the following (in millions):

	2019			2018			2017
Current tax expense/(benefit)
Federal	$	(4.9	)	$	21.5		$	9.6
Foreign		20.4			14.1			25.5
		15.5			35.6			35.1
Deferred tax expense/(benefit)
Federal		(8.5	)		14.4			(10.6	)
Foreign		(6.7	)		(9.5	)		(12.3	)
		(15.2	)		4.9			(22.9	)
Provision for income taxes	$	0.3		$	40.5		$	12.2

The provision for income taxes differs from the federal statutory rate for fiscal 2019, 2018, and 2017 as follows (in millions):

	2019			2018			2017
Provision at U.S. federal statutory tax rate	$	(4.4	)	$	(22.9	)	$	21.5
Qualified stock options		4.0			4.9			5.5
Shortfall related to share-based compensation		3.3			4.1			—
Non-deductible officer compensation		1.1			—			—
Business credits		(6.1	)		(4.9	)		(3.6	)
Foreign tax differential		1.0			16.5			(13.2	)
Non-deductible portion of contingent consideration		—			—			0.9
Change in valuation allowance		—			—			(0.8	)
Nondeductible amortization		0.7			1.2			1.6
Taxes associated with one-time transition tax		—			44.1			—
Impact of corporate tax rate change on deferred taxes		—			(2.7	)		—
Other differences		0.7			0.2			0.3
Provision for income taxes	$	0.3		$	40.5		$	12.2

Net deferred tax assets of $31.1 million and $15.9 million were non-current as of the end of fiscal 2019 and 2018, respectively, and were included in other assets in the accompanying consolidated balance sheets.

Significant components of our deferred tax assets (liabilities) as of the end of fiscal 2019 and 2018 consisted of the following (in millions):

	2019			2018
Deferred tax assets:
Investment writedowns	$	—		$	1.1
Inventory writedowns		12.1			11.6
Property and equipment		1.5			1.9
Accrued compensation		0.8			0.1
Deferred compensation		0.5			0.6
Share-based compensation		9.5			11.1
Business credit carryforward		37.3			25.3
Acquisition intangibles		7.0			0.6
Other accruals		3.3			1.6
		72.0			53.9
Valuation allowance		(30.4	)		(23.3	)
		41.6			30.6
Deferred tax liabilities:
Interest		(10.5	)		(14.7	)
		(10.5	)		(14.7	)
Net deferred tax assets	$	31.1		$	15.9

Realization of deferred tax assets depends on our generating sufficient U.S. and certain foreign taxable income in future years to obtain a benefit from the utilization of those deferred tax assets on our tax returns. Accordingly, the amount of deferred tax assets considered realizable may increase or decrease when we reevaluate the underlying basis for our estimates of future U.S. and foreign taxable income. As of the end of fiscal 2019, a valuation allowance of $30.4 million is maintained to reduce deferred tax assets to levels we believe are more likely than not to be realized through future taxable income. The net change in the valuation allowance during fiscal 2019 was an increase of $7.1 million.

Undistributed earnings of our foreign subsidiaries were approximately $859.3 million as of the end of fiscal 2019 and are considered to be indefinitely reinvested overseas.

As of the end of fiscal 2019, we had federal and California net operating loss carryforwards of approximately zero and $33.2 million, respectively. The California net operating loss will begin to expire in fiscal 2020, if not utilized. Under current tax law, net operating loss and tax credit carryforwards available to offset future income or income taxes may be limited by statute or upon the occurrence of certain events, including significant changes in ownership.

We had $11.0 million and $37.8 million of federal and state research tax credit carryforwards, respectively, as of the end of fiscal 2019. The federal research tax credit carryforward will begin to expire in 2026 and the state research tax credit can be carried forward indefinitely. We also had $0.8 million of federal alternative minimum tax credit carryforward available to offset future federal tax liabilities with no expiration or potentially refundable under current tax laws.

The total liability for gross unrecognized tax benefits related to uncertain tax positions, included in other liabilities in our consolidated balance sheets, decreased by $5.9 million from $24.8 million in fiscal 2018 to $18.9 million in fiscal 2019. Of this amount, $13.1 million will reduce the effective tax rate on income from continuing operations, if recognized. A reconciliation of the beginning and ending balance of gross unrecognized tax benefits for fiscal 2019, 2018, and 2017 consisted of the following (in millions):

	2019			2018			2017
Beginning balance	$	24.8		$	15.2		$	13.4
Increase in unrecognized tax benefits related to current year tax positions		4.2			10.5			2.5
Increase in unrecognized tax benefits related to prior year tax positions		—			—			0.1
Decrease due to effective settlement with tax authorities		(6.2	)		—			—
Remeasurement of unrecognized tax benefits		(2.0	)		—			—
Decrease due to statute expiration		(1.9	)		(0.9	)		(0.8	)
Ending Balance	$	18.9		$	24.8		$	15.2

Accrued interest and penalties remained flat, increased by $0.7 million, and decreased by $0.2 million representing income tax expense or benefit, in fiscal 2019, 2018, and 2017, respectively. Accrued interest and penalties were $1.9 million as of June 30, 2019 and 2018. Our policy is to classify interest and penalties, if any, as components of income tax expense.

It is reasonably possible that the amount of liability for unrecognized tax benefits may change within the next 12 months; an estimate of the range of possible changes could result in a decrease of $1.8 million to an increase of $3.0 million.

In July 2018, the U.S. Ninth Circuit Court of Appeals reversed a 2015 decision of the U.S. Tax Court in Altera Corp. v. Commissioner that found that the Treasury regulations addressing the treatment of stock-based compensation in a cost-sharing arrangement with a related party were invalid. In August 2018, the U.S. Ninth Circuit Court of Appeals withdrew its July 2018 opinion to allow time for the reconstituted panel to confer on this appeal. In June 2019, the reconstituted panel of the U.S. Ninth Circuit Court of appeals reversed the 2015 Tax Court decision. As our tax filing position is consistent with the treasury regulations, no adjustment to our financial statements is required. However, due to the uncertainties with respect to the ultimate resolution, we will continue to monitor developments in this case.

Our major tax jurisdictions are the United States, Hong Kong SAR, and Japan. From fiscal 2013 onward, we remain subject to examination by one or more of these jurisdictions. In August 2018, we received the revenue agent’s report resolving the fiscal 2014 and 2015 examination by the Internal Revenue Service with no material impact on our consolidated financial statements. Our case is pending review by the Joint Committee on Taxation, which we anticipate will conclude in our fiscal 2020. Any prospective adjustments to our unrecognized tax benefits will be recorded as an increase or decrease to income tax expense and cause a corresponding change to our effective tax rate. Accordingly, our effective tax rate could fluctuate materially from period to period.

Segment, Customers, and Geographic Information - Additional Information (Detail) $ in Millions	12 Months Ended
	Jun. 29, 2019 USD ($) Segment Product ReportingUnit	Jun. 30, 2018 USD ($)	Jun. 24, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments \| Segment	1
Number of product \| Product	3
Goodwill \| $	$ 372.8	$ 372.8	$ 206.8
Number of reporting units \| Segment	2
Internet of Things and Mobile/PC
Segment Reporting Information [Line Items]
Goodwill \| $	$ 372.8
Number of reporting units \| ReportingUnit	2

Property and Equipment - Property and Equipment (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 236.1	$ 245.2
Accumulated depreciation and amortization	(133.1)	(127.4)
Property and equipment, net	103.0	117.8
Land [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	13.3	13.3
Building and Building Improvements [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 52.7	51.8
Building and Building Improvements [Member] \| Maximum [Member]
Property Plant And Equipment [Line Items]
Estimated useful lives	35 years
Computer Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 48.2	42.9
Computer Equipment [Member] \| Minimum [Member]
Property Plant And Equipment [Line Items]
Estimated useful lives	3 years
Computer Equipment [Member] \| Maximum [Member]
Property Plant And Equipment [Line Items]
Estimated useful lives	5 years
Manufacturing Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 63.0	78.1
Manufacturing Equipment [Member] \| Minimum [Member]
Property Plant And Equipment [Line Items]
Estimated useful lives	1 year
Manufacturing Equipment [Member] \| Maximum [Member]
Property Plant And Equipment [Line Items]
Estimated useful lives	5 years
Furniture, Fixtures and Leasehold Improvements [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 25.1	24.1
Furniture, Fixtures and Leasehold Improvements [Member] \| Minimum [Member]
Property Plant And Equipment [Line Items]
Estimated useful lives	3 years
Furniture, Fixtures and Leasehold Improvements [Member] \| Maximum [Member]
Property Plant And Equipment [Line Items]
Estimated useful lives	10 years
Capitalized Software [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 33.8	$ 35.0
Capitalized Software [Member] \| Minimum [Member]
Property Plant And Equipment [Line Items]
Estimated useful lives	3 years
Capitalized Software [Member] \| Maximum [Member]
Property Plant And Equipment [Line Items]
Estimated useful lives	7 years

Segment, Customers, and Geographic Information - Major Customers' Revenue as a Percentage of Total Net Revenue (Detail) - Sales Revenue, Net [Member] - Customer Concentration Risk [Member]

12 Months Ended

Jun. 29, 2019

Jun. 30, 2018

Jun. 24, 2017

Customer A [Member]

Revenue, Major Customer [Line Items]

Concentration Risk, Percentage

15.00%

24.00%

Customer B [Member]

Revenue, Major Customer [Line Items]

Concentration Risk, Percentage

14.00%

^[1]

10.00%

Customer C [Member]

Revenue, Major Customer [Line Items]

Concentration Risk, Percentage

10.00%

^[1]

Customer D [Member]

Revenue, Major Customer [Line Items]

Concentration Risk, Percentage

^[1]

12.00%

^[1]

Customer E [Member]

Revenue, Major Customer [Line Items]

Concentration Risk, Percentage

^[1]

19.00%

[1]	Less than 10%

Debt

12 Months Ended

Jun. 29, 2019

Debt Disclosure [Abstract]

Debt

Convertible Debt

On June 20, 2017, we entered into a purchase agreement, or the Purchase Agreement, with Wells Fargo Securities, LLC, as representative of the initial purchasers named therein, or collectively, the Initial Purchasers, pursuant to which we issued and sold, and the Initial Purchasers purchased, $500 million aggregate principal amount of our 0.50% convertible senior notes due 2022, or the Notes, in a private placement transaction. Pursuant to the Purchase Agreement, we also granted the Initial Purchasers a 30-day option to purchase up to an additional $25 million aggregate principal amount of Notes, which was exercised in full on June 21, 2017. The net proceeds, after deducting the Initial Purchasers’ discounts, were $514.5 million, which included proceeds from the Initial Purchasers’ exercise of their option to purchase additional Notes. We received the net proceeds on June 26, 2017, which we used to repurchase 1,698,400 shares of our common stock, to retire our outstanding bank debt, and to provide additional cash resources to fund the Conexant and Marvell Business Acquisitions.

The Notes bear interest at a rate of 0.50% per year. Interest accrued from June 26, 2017, and is payable semi-annually in arrears, on June 15 and December 15 of each year, beginning on December 15, 2017. The Notes are senior unsecured obligations and rank senior in right of payment to any of our indebtedness that is expressly subordinated in right of payment to the Notes; equal in right of payment to any our liabilities that are not so subordinated; effectively junior in right of payment to any of our secured indebtedness to the extent of the value of the assets securing such indebtedness; and structurally junior to all indebtedness and other liabilities (including trade payables) of our subsidiaries.

The Notes will mature on June 15, 2022, or the Maturity Date, unless earlier repurchased, redeemed or converted.

Holders may convert all or any portion of their Notes, in multiples of $1,000 principal amounts, at their option at any time prior to the close of business on the business day immediately preceding March 15, 2022 under certain defined circumstances.

On or after March 15, 2022 until the close of business on the business day immediately preceding the Maturity Date, holders may convert all or any portion of their Notes, in multiples of $1,000 principal amounts, at the option of the holder. Upon conversion, we will pay or deliver, at our election, shares of common stock, cash, or a combination of cash and shares of common stock.

The conversion rate for the Notes is initially 13.6947 shares of common stock per $1,000 principal amount of Notes (equivalent to an initial conversion price of approximately $73.02 per share of common stock). The conversion rate is subject to adjustment in certain circumstances.

Upon the occurrence of a fundamental change (as defined in the Notes indenture), holders of the Notes may require us to repurchase for cash all or a portion of their Notes at a fundamental change repurchase price equal to 100% of the principal amount of the Notes to be repurchased, plus accrued and unpaid interest up to, but excluding, the fundamental change repurchase date.

We may not redeem the Notes prior to June 20, 2020. We may redeem for cash all or any portion of the Notes, at our option, on or after June 20, 2020, if the last reported sale price of our common stock, as determined by us, has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading day period (including the last trading day of such period) ending on, and including, the trading day immediately preceding the date on which we provide notice of redemption at a redemption price equal to 100% of the principal amount of the Notes to be redeemed, plus accrued and unpaid interest up to, but excluding, the redemption date. Our policy is to settle the principal amount of our Notes with cash upon conversion or redemption.

As of the issuance date of the Notes, we recorded $82.1 million of the principal amount to equity, representing the debt discount for the difference between our estimated nonconvertible debt borrowing rate of 4.39% and the coupon rate of the Notes of 0.50% using a five-year life, which coincides with the term of the Notes. In addition, we allocated the total of $11.1 million of debt issuance costs, consisting of the Initial Purchaser’s discount of $10.5 million and legal, accounting, and printing costs of $579,000, pro rata, to the equity and debt components of the Notes, or $1.9 million and $9.2 million, respectively. The debt discount and the debt issuance costs allocated to the debt component are amortized as interest expense using the effective interest method over five years.

The contractual interest expense and amortization of discount on the Notes for fiscal 2019, were as follows (in millions):

	Fiscal
	2019
Interest expense	$	2.6
Amortization of discount and debt issuance costs		17.6
Total interest	$	20.2

The unamortized amounts of the debt issuance cost and discount associated with the Notes as of June 30, 2019, were $5.7 million and $51.0 million, respectively.

Revolving Credit Facility

At the end of fiscal 2017, we had $220.0 million principal outstanding under our Credit Agreement consisting of $100.0 million under our revolving credit facility and $120.0 million under our term loan arrangement. At the beginning of fiscal 2018, we issued $525.0 million principal amount of convertible senior notes, or the Notes, and utilized a portion of the proceeds from our Notes to retire the outstanding principal and interest balances on our revolving credit facility and our term loan arrangement. At the end of July 2017, we made an election to reduce the commitment under the revolving credit facility from $450.0 million to $250.0 million as we were able to complete the Conexant Acquisition with available cash.

In September 2017, we entered into an Amendment and Restatement Agreement, or the Agreement, with the lenders that are party thereto, or the Lenders, and Wells Fargo Bank, National Association, as administrative agent for the Lenders. The Agreement terminated our term loan arrangement and provides for a revolving credit facility in a principal amount of up to $200 million, which includes a $20 million sublimit for letters of credit and a $20 million sublimit for swingline loans. Under the terms of the Agreement, we may, subject to the satisfaction of certain conditions, request increases in the revolving credit facility commitments in an aggregate principal amount of up to $100 million to the extent existing or new lenders agree to provide such increased or additional commitments, as applicable. Proceeds under the revolving credit facility are available for working capital and general corporate purposes. As of June 30, 2019, there is no balance outstanding under the revolving credit facility. As a result of terminating our term loan arrangement, we expensed the remaining debt issuance costs attributable to the term loan of $1.0 million during the first quarter of fiscal 2018.

The revolving credit facility is required to be repaid in full on the earlier of (i) September 27, 2022, and (ii) the date 91 days prior to the Maturity Date of the Notes if the Notes have not been refinanced in full by such date. Debt issuance costs of $2.3 million will be amortized over 60 months.

Our obligations under the Agreement are guaranteed by the material domestic subsidiaries of our company, subject to certain exceptions (such material subsidiaries, together with our company, collectively, the Credit Parties). The obligations of the Credit Parties under the Agreement and the other loan documents delivered in connection therewith are secured by a first priority security interest in substantially all of the existing and future personal property of the Credit Parties, including, without limitation, 65% of the voting capital stock of certain of the Credit Parties’ direct foreign subsidiaries, subject to certain exceptions.

The revolving credit facility bears interest at our election of a Base Rate plus an Applicable Margin or LIBOR plus an Applicable Margin. Swingline loans bear interest at a Base Rate plus an Applicable Margin. The Base Rate is a floating rate that is the greater of the Prime Rate, the Federal Funds Rate plus 50 basis points, or LIBOR plus 100 basis points. The Applicable Margin is based on a sliding scale which ranges from 0.25 to 100 basis points for Base Rate loans and 100 basis points to 175 basis points for LIBOR loans. We are required to pay a commitment fee on any unused commitments under the Agreement which is determined on a leverage-based sliding scale ranging from 0.175% to 0.25% per annum. Interest and fees are payable on a quarterly basis. The LIBOR index is expected to be discontinued the end of 2021. Under our credit facility, when the LIBOR index is discontinued, we will switch to a comparable or successor rate as approved by the Administrative Agent, which is currently anticipated to be the Secured Overnight Financing Rate, or SOFR.

Under the Agreement, there are various restrictive covenants, including financial covenants which limit the consolidated total leverage ratio, or leverage ratio, the consolidated interest coverage ratio, or interest coverage ratio, a restriction which places a limit on the amount of capital expenditures that may be made in any fiscal year, a restriction that permits up to $50 million per fiscal quarter of accounts receivable financings, and sets the Specified Leverage Ratio. The leverage ratio is the ratio of debt as of the measurement date to earnings before interest, taxes, depreciation and amortization, or EBITDA, for the four consecutive quarters ending with the quarter of measurement. The current leverage ratio shall not exceed 3.50 to 1.00 provided that for the four fiscal quarters ending after the date of a material acquisition, such maximum leverage ratio shall be adjusted to 3.75 to 1.00, and thereafter, shall not be more than 3.50 to 1.00. The interest coverage ratio is EBITDA to interest expense for the four consecutive quarters ending with the quarter of measurement. The interest coverage ratio must not be less than 3.50 to 1.0 during the term of the Agreement. The Specified Leverage Ratio is the ratio used in determining, among other things, whether we are permitted to make dividends and/or prepay certain indebtedness, at a fixed ratio of 3.00 to 1.00. As of the end of the fiscal year, we were in compliance with the restrictive covenants.

Segment, Customers, and Geographic Information - Major Customers' Revenue as a Percentage of Total Net Revenue (Parenthetical) (Detail)	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Customer Concentration Risk [Member] \| Sales Revenue, Net [Member] \| Maximum [Member]
Revenue, Major Customer [Line Items]
Concentration Risk, Percentage	10.00%	10.00%	10.00%

Income Taxes - Significant Components of Deferred Tax Assets (Liabilities) (Detail) - USD ($) $ in Millions	Jun. 29, 2019	Jun. 30, 2018
Deferred tax assets:
Investment writedowns		$ 1.1
Inventory writedowns	$ 12.1	11.6
Property and equipment	1.5	1.9
Accrued compensation	0.8	0.1
Deferred compensation	0.5	0.6
Share-based compensation	9.5	11.1
Business credit carryforward	37.3	25.3
Acquisition intangibles	7.0	0.6
Other accruals	3.3	1.6
Deferred Tax Assets, Gross	72.0	53.9
Valuation allowance	(30.4)	(23.3)
Deferred Tax Assets, Net	41.6	30.6
Deferred tax liabilities:
Interest	(10.5)	(14.7)
Deferred tax liabilities, Total	(10.5)	(14.7)
Net deferred tax assets	$ 31.1	$ 15.9

Organization and Summary of Significant Accounting Policies (Policies)

12 Months Ended

Jun. 29, 2019

Accounting Policies [Abstract]

Organization and Basis of Presentation

Use of Estimates

Cash Equivalents and Investments

Cash equivalents consist of highly liquid investments with original maturities of three months or less.

Our cash equivalents and investments classified as available-for-sale securities as of the end of fiscal 2019 and 2018 were as follows (in millions):

	2019
			Gross
	Amortized		Unrealized		Fair
	Cost		Gains		Value
Reported as cash equivalents:
Money market funds	$	313.7	$	—	$	313.7
Total available-for-sale securities	$	313.7	$	—	$	313.7

	2018
			Gross
	Amortized		Unrealized		Fair
	Cost		Gains		Value
Reported as cash equivalents:
Money market funds	$	275.2	$	—	$	275.2
Reported as non-current assets:
Auction rate securities		—		1.5		1.5
Total available-for-sale securities	$	275.2	$	1.5	$	276.7

Fair Value

•

Level 1 inputs are observable inputs that reflect quoted prices for identical assets or liabilities in active markets.

•

Financial assets measured at fair value on a recurring basis, by level within the fair value hierarchy, as of the end of fiscal 2019 and 2018 were as follows (in millions):

	2019						2018
	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Assets:
Money market	$	313.7	$	—	$	—	$	275.2	$	—	$	—
Auction rate securities		—		—		—		—		—		1.5
Total available-for-sale securities	$	313.7	$	—	$	—	$	275.2	$	—	$	1.5

Changes in fair value of our Level 3 financial assets for fiscal 2019 and 2018 were as follows (in millions):

	2019			2018
Beginning balance	$	1.5		$	1.5
Redemptions		(1.5	)		—
Ending balance	$	—		$	1.5

There were no transfers in or out of our Level 1, 2 or 3 assets during fiscal 2019 or 2018.

Concentration of Credit Risk

The following customers accounted for more than 10% of our accounts receivable balance as of the end of fiscal 2019 and 2018:

	2019	2018
Customer A	25%	13%
Customer B	16%	*
Customer C	*	11%
Customer D	*	10%

*	Less than 10%

Other Concentrations

Revenue Recognition

Change in Accounting Policy

Adjustments reflected in the consolidated balance sheets:

	As of June 30, 2019
						Pro forma as if
	As reported under					previous standard
	new standard		Adjustments			was in effect
Accounts receivable, net	$	230.0	$	(5.0	)	$	225.0
Inventories		158.7		0.9			159.6
Prepaid expenses and other current assets		14.6		(0.9	)		13.7
Total assets		1,409.8		(5.0	)		1,404.8

Other accrued liabilities		106.1		(5.0	)		101.1
Total liabilities and stockholders' equity		1,409.8		(5.0	)		1,404.8

Adjustments reflected in the consolidated statement of cash flows:

	Twelve Months Ended June 30, 2019
							Pro forma as if
	As reported under						previous standard
	new standard			Adjustments			was in effect
Cash flows from operating activities:
Accounts receivable, net	$	64.3		$	(0.2	)	$	64.1
Inventories		(27.5	)		(0.6	)		(28.1	)
Prepaid expenses and other current assets		3.6			0.6			4.2
Other accrued liabilities		20.5			0.2			20.7

Revenue Recognition

Advertising Costs

Advertising costs, if any, are expensed when incurred.

Allowance for Doubtful Accounts

Cost of Revenue

Inventories

Inventories are stated at the lower of cost (first-in, first-out method) or net realizable value as of the end of fiscal 2019 and 2018 and consisted of the following (in millions):

	2019		2018
Raw materials and work-in-progress	$	110.7	$	105.0
Finished goods		48.0		26.2
	$	158.7	$	131.2

Property and Equipment

Other Assets

Foreign Currency

Goodwill

	2019		2018
Beginning balance	$	372.8	$	206.8
Acquisition activity		—		166.0
Ending balance	$	372.8	$	372.8

Impairment of Long-Lived Assets

Other Accrued Liabilities

As of the end of fiscal 2019 and 2018, other accrued liabilities consisted of the following (in millions):

	2019		2018
Customer obligations	$	52.0	$	26.4
Inventory obligations		26.7		28.8
Warranty		4.0		5.5
Other		23.4		19.0
	$	106.1	$	79.7

Retention Costs

Segment Information

Share-Based Compensation

Income Taxes

Research and Development

Research and development costs are expensed as incurred.

Commitments and Contingencies

12 Months Ended

Jun. 29, 2019

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

7.	Commitments and Contingencies

Leases

We maintain office facilities in various locations under operating leases with expiration dates from fiscal 2019 to fiscal 2024, some of which have renewal options of one to five years. Our leased office facilities are located in Armenia, China, Denmark, Hong Kong, India, Japan, Korea, Switzerland, Taiwan, and the United States. We recognized rent expense on a straight-line basis of $10.3 million, $12.0 million, and $10.6 million for fiscal 2019, 2018, and 2017, respectively.

The aggregate minimum rental commitments in future fiscal years for non-cancelable operating leases with initial or remaining terms in excess of one year were as follows (in millions):

	Operating
	Lease
Fiscal Year	Payments
2020	$	7.4
2021		3.2
2022		0.9
2023		0.3
2024		0.1
Total minimum operating lease payments	$	11.9

Contingencies

We have in the past and may in the future receive notices from third parties that claim our products infringe their intellectual property rights. We cannot be certain that our technologies and products do not and will not infringe issued patents or other proprietary rights of third parties.

Any infringement claims, with or without merit, could result in significant litigation costs and diversion of management and financial resources, including the payment of damages, which could have a material adverse effect on our business, financial condition, and results of operations.

Indemnifications

In connection with certain agreements, we are obligated to indemnify the counterparty against third party claims alleging infringement of certain intellectual property rights by us. We have also entered into indemnification agreements with our officers and directors. Maximum potential future payments under these agreements cannot be estimated because these agreements do not have a maximum stated liability. However, historical costs related to these indemnification provisions have not been significant. We have not recorded any liability in our consolidated financial statements for such indemnification obligations.

Income Taxes - Additional Information (Detail) - USD ($)	6 Months Ended		12 Months Ended
	Jun. 29, 2019	Dec. 31, 2017	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017	Jun. 30, 2019	Jun. 25, 2016
Income Tax Disclosure [Line Items]
U.S. federal corporate tax rate	21.00%	35.00%	21.00%	28.17%
Net deferred tax assets	$ 31,100,000		$ 31,100,000	$ 15,900,000
Valuation allowance	30,400,000		30,400,000	23,300,000
Net increase in valuation allowance			7,100,000
Undistributed earnings of foreign subsidiaries accounted for one-time transition tax	859,300,000		859,300,000
Federal alternative minimum tax credit carryforward	800,000		800,000
Gross unrecognized tax benefits	18,900,000		18,900,000	24,800,000	$ 15,200,000		$ 13,400,000
Gross unrecognized tax benefits decreased during the year				5,900,000
Unrecognized tax benefit, reduction of effective tax rate if recognized				13,100,000
Increase (decrease) in interest and penalties accrued related to unrecognized tax benefits			700,000	(200,000)	$ (200,000)
Interest and penalties accrued related to unrecognized tax benefits				$ 1,900,000		$ 1,900,000
Estimated decrease in unrecognized tax benefit in next 12 months	1,800,000		1,800,000
Estimated increase in unrecognized tax benefit in next 12 months	3,000,000.0		3,000,000.0
Federal [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards	0		0
Tax credit carryforward, amount	11,000,000.0		11,000,000.0
State and Local Jurisdiction [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards	33,200,000		33,200,000
Net operating loss, beginning of expiration period				2020
Tax credit carryforward, amount	37,800,000		37,800,000
Other Assets [Member]
Income Tax Disclosure [Line Items]
Net deferred tax assets	$ 31,100,000		$ 31,100,000	$ 15,900,000

Acquired Intangibles - Schedule of Expected Annual Aggregate Amortization Expense (Detail) - USD ($) $ in Millions	Jun. 29, 2019	Jun. 30, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
2020	$ 51.4
2021	37.5
2022	32.9
2023	20.4
2024	2.5
Thereafter	0.1
Net Carrying Value	$ 144.8	$ 219.2

Organization and Summary of Significant Accounting Policies - Accounts Receivable Balance Percentage of Different Customers (Parenthetical) (Detail)	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Accounts Receivable [Member] \| Credit Concentration Risk [Member] \| Maximum [Member]
Revenue, Major Customer [Line Items]
Concentration Risk, Percentage	10.00%	10.00%

Organization and Summary of Significant Accounting Policies - Investments in Available-for-Sale Securities and Cash Equivalents (Detail) - USD ($) $ in Millions	Jun. 29, 2019	Jun. 30, 2018
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 313.7	$ 275.2
Gross Unrealized Gains		1.5
Fair Value	313.7	276.7
Money Market Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	313.7	275.2
Fair Value	$ 313.7	275.2
Non-Current Assets [Member] \| Auction Rate Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Gains		1.5
Fair Value		$ 1.5

Segment, Customers, and Geographic Information - Net Revenue within Geographic Areas Based on Customers' Locations (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 1,472.2	$ 1,630.3	$ 1,718.2
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	844.8	803.2	844.8
Taiwan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	239.8	235.2	66.4
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	234.6	358.6	426.5
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	64.9	74.9	25.3
South Korea [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	63.5	67.5	123.8
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 24.6	$ 90.9	$ 231.4

Organization and Summary of Significant Accounting Policies - Topic 606 Disclosure of Impact of Adoption to Condensed Consolidated Statement of Cash Flows (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Cash flows from operating activities:
Accounts receivable, net	$ 64.3	$ (22.7)	$ (2.6)
Inventories	(27.5)	79.5	15.0
Prepaid expenses and other current assets	3.6	18.8	(9.6)
Other accrued liabilities	20.5	$ (22.1)	$ 19.5
Adjustments [Member] \| Topic 606 [Member]
Cash flows from operating activities:
Accounts receivable, net	(0.2)
Inventories	(0.6)
Prepaid expenses and other current assets	0.6
Other accrued liabilities	0.2
Proforma as if previous standard was in effect [Member] \| Topic 606 [Member]
Cash flows from operating activities:
Accounts receivable, net	64.1
Inventories	(28.1)
Prepaid expenses and other current assets	4.2
Other accrued liabilities	$ 20.7

Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Jun. 29, 2019	Aug. 19, 2019	Dec. 28, 2018
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Jun. 29, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Registrant Name	SYNAPTICS Inc
Trading Symbol	SYNA
Entity Central Index Key	0000817720
Current Fiscal Year End Date	--06-29
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Well Known Seasoned Issuer	Yes
Entity Shell Company	false
Entity Small Business	false
Entity Emerging Growth Company	false
Entity File Number	000-49602
Entity Tax Identification Number	770118518
Entity Address, Address Line One	1251 McKay Drive
Entity Address, City or Town	San Jose
Entity Address, State or Province	California
Entity Address, Postal Zip Code	95131
City Area Code	408
Local Phone Number	904-1100
Entity Common Stock, Shares Outstanding		32,910,891
Entity Public Float			$ 823,690,994

Income Taxes (Tables)

12 Months Ended

Jun. 29, 2019

Income Tax Disclosure [Abstract]

Tabular Disclosure of Income (Loss) Before Income Tax Between Domestic and Foreign Jurisdictions

Income/(loss) before provision for income taxes for fiscal 2019, 2018, and 2017 consisted of the following (in millions):

	2019			2018			2017
United States	$	(40.6	)	$	(51.1	)	$	(10.1	)
Foreign		19.8			(30.7	)		71.4
Income/(loss) before provision for income taxes	$	(20.8	)	$	(81.8	)	$	61.3

Provision for Income Taxes

The provision for income taxes for fiscal 2019, 2018, and 2017 consisted of the following (in millions):

	2019			2018			2017
Current tax expense/(benefit)
Federal	$	(4.9	)	$	21.5		$	9.6
Foreign		20.4			14.1			25.5
		15.5			35.6			35.1
Deferred tax expense/(benefit)
Federal		(8.5	)		14.4			(10.6	)
Foreign		(6.7	)		(9.5	)		(12.3	)
		(15.2	)		4.9			(22.9	)
Provision for income taxes	$	0.3		$	40.5		$	12.2

Provision for Income Taxes Differs from Federal Statutory Rate

The provision for income taxes differs from the federal statutory rate for fiscal 2019, 2018, and 2017 as follows (in millions):

	2019			2018			2017
Provision at U.S. federal statutory tax rate	$	(4.4	)	$	(22.9	)	$	21.5
Qualified stock options		4.0			4.9			5.5
Shortfall related to share-based compensation		3.3			4.1			—
Non-deductible officer compensation		1.1			—			—
Business credits		(6.1	)		(4.9	)		(3.6	)
Foreign tax differential		1.0			16.5			(13.2	)
Non-deductible portion of contingent consideration		—			—			0.9
Change in valuation allowance		—			—			(0.8	)
Nondeductible amortization		0.7			1.2			1.6
Taxes associated with one-time transition tax		—			44.1			—
Impact of corporate tax rate change on deferred taxes		—			(2.7	)		—
Other differences		0.7			0.2			0.3
Provision for income taxes	$	0.3		$	40.5		$	12.2

Significant Components of Deferred Tax Assets (Liabilities)

Significant components of our deferred tax assets (liabilities) as of the end of fiscal 2019 and 2018 consisted of the following (in millions):

	2019			2018
Deferred tax assets:
Investment writedowns	$	—		$	1.1
Inventory writedowns		12.1			11.6
Property and equipment		1.5			1.9
Accrued compensation		0.8			0.1
Deferred compensation		0.5			0.6
Share-based compensation		9.5			11.1
Business credit carryforward		37.3			25.3
Acquisition intangibles		7.0			0.6
Other accruals		3.3			1.6
		72.0			53.9
Valuation allowance		(30.4	)		(23.3	)
		41.6			30.6
Deferred tax liabilities:
Interest		(10.5	)		(14.7	)
		(10.5	)		(14.7	)
Net deferred tax assets	$	31.1		$	15.9

Reconciliation of Gross Unrecognized Tax Benefits

A reconciliation of the beginning and ending balance of gross unrecognized tax benefits for fiscal 2019, 2018, and 2017 consisted of the following (in millions):

	2019			2018			2017
Beginning balance	$	24.8		$	15.2		$	13.4
Increase in unrecognized tax benefits related to current year tax positions		4.2			10.5			2.5
Increase in unrecognized tax benefits related to prior year tax positions		—			—			0.1
Decrease due to effective settlement with tax authorities		(6.2	)		—			—
Remeasurement of unrecognized tax benefits		(2.0	)		—			—
Decrease due to statute expiration		(1.9	)		(0.9	)		(0.8	)
Ending Balance	$	18.9		$	24.8		$	15.2

Restructuring Activities

12 Months Ended

Jun. 29, 2019

Restructuring And Related Activities [Abstract]

Restructuring Activities

13.	Restructuring Activities

In August 2018, we committed to and initiated a restructuring of our mobile fingerprint optical business. The costs for this restructuring activity primarily related to severance costs for a reduction in headcount and related costs. These activities are complete as of June 30, 2019. In June 2019, we committed to and initiated a restructuring action intended to reduce our operating cost structure further. The costs for this restructuring action primarily related to severance costs for a reduction in headcount. Restructuring costs related to these fiscal 2019 restructuring activities were recorded to the restructuring costs line item within our consolidated statements of operations. We expect to complete activities relating to the June 2019 restructuring action in the first half of fiscal 2020.

The restructuring liability activities during fiscal 2019 for restructurings initiated in fiscal 2019 were as follows (in millions):

	Employee Severance
	and Benefits
Accruals	$	17.7
Cash payments		(12.5	)
Balance as of June 30, 2019	$	5.2

In November 2017, we committed to and initiated a restructuring action intended to streamline and reduce our operating cost structure and capitalize on acquisition synergies. The costs relating to this restructuring primarily related to severance costs for a reduction in headcount, facility consolidation and related costs. In April 2018, we committed to and initiated a restructuring to close a research and development facility. The costs relating to this restructuring include employee severance and related benefits and facility closure charges. Restructuring costs related to both the November 2017 and April 2018 restructuring activities were recorded to the restructuring costs line item within our consolidated statements of operations and were complete as of June 30, 2018.

The restructuring liability activities during fiscal years 2018 and 2019 for restructurings initiated in fiscal 2018 were as follows (in millions):

	Employee Severance			Facility Consolidation
	and Benefits			and Related Charges			Total
Accruals	$	11.0		$	1.0		$	12.0
Cash payments		(8.8	)		(0.2	)		(9.0	)
Non-cash settlements		—			(0.7	)		(0.7	)
Balance as of June 30, 2018		2.2			0.1			2.3
Additional accruals	$	0.2			—		$	0.2
Cash payments		(2.4	)		(0.1	)		(2.5	)
Balance as of June 30, 2019	$	—		$	—		$	—

In June 2016, our management committed to and initiated plans to restructure and further improve efficiencies in our operational activities to align the Company’s cost structure consistent with its revenue levels. Restructuring costs related to the June 2016 restructuring activities were recorded to the restructuring costs line item within our consolidated statements of income. These costs primarily related to severance costs for a reduction in headcount and facility consolidation and related costs. These restructuring charges were complete as of June 30, 2017.

The restructuring liability activities during fiscal years 2018, 2017, and 2016 for restructurings initiated in fiscal 2016 were as follows (millions):

	Employee Severance			Facility Consolidation
	and Benefits			and Related Charges			Total
Balance as of June 30, 2015	$	—		$	—		$	—
Accruals		6.7						6.7
Balance as of June 30, 2016		6.7			—			6.7
Additional accruals		5.0			2.3			7.3
Cash payments		(11.7	)		(0.9	)		(12.6	)
Non-cash settlements		—			(0.8	)		(0.8	)
Balance as of June 30, 2017		—			0.6			0.6
Adjustments		—			(0.2	)		(0.2	)
Cash payments		—			(0.4	)		(0.4	)
Balance as of June 30, 2018	$	—		$	—		$	—

Income Taxes - Tabular Disclosure of Income (Loss) Before Income Tax Between Domestic and Foreign Jurisdictions (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Income Loss From Operations Before Provision Benefit For Income Taxes [Line Items]
Income/(loss) before provision for income taxes	$ (20.8)	$ (81.8)	$ 61.3
United States [Member]
Income Loss From Operations Before Provision Benefit For Income Taxes [Line Items]
Income/(loss) before provision for income taxes	(40.6)	(51.1)	(10.1)
Foreign [Member]
Income Loss From Operations Before Provision Benefit For Income Taxes [Line Items]
Income/(loss) before provision for income taxes	$ 19.8	$ (30.7)	$ 71.4

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 29, 2019	Jun. 30, 2018
Statement Of Financial Position [Abstract]
Allowance for doubtful accounts receivable	$ 2.1	$ 1.8
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	120,000,000	120,000,000
Common stock, shares issued	64,283,948	62,889,679
Common stock, shares outstanding	33,349,735	35,249,803
Common treasury shares	30,934,213	27,639,876

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Cash flows from operating activities
Net income/(loss)	$ (22.9)	$ (124.1)	$ 48.8
Adjustments to reconcile net income/(loss) to net cash provided by operating activities:
Share-based compensation costs	59.0	71.3	61.8
Depreciation and amortization	35.6	38.9	33.2
Acquired intangibles amortization	74.4	83.9	59.3
Deferred taxes	(15.2)	4.9	(17.4)
Non-cash interest			(0.3)
Amortization of convertible debt discount and issuance costs	17.6	16.9
Amortization of debt issuance costs	0.5	1.6	1.2
Impairment recovery on investments, net	(2.8)		(1.9)
Arbitration settlement	(1.9)
Equity investment loss	1.8	1.8	0.3
Foreign currency remeasurement (gain)/loss	0.1		(0.2)
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable, net	64.3	(22.7)	(2.6)
Inventories	(27.5)	79.5	15.0
Prepaid expenses and other current assets	3.6	18.8	(9.6)
Other assets	3.9	(7.2)	6.5
Accounts payable	(55.8)	6.2	(38.4)
Accrued compensation	4.9	(8.1)	(7.8)
Acquisition related liabilities	(6.8)		(16.8)
Income taxes payable	0.9	5.4	2.3
Other accrued liabilities	20.5	(22.1)	19.5
Net cash provided by operating activities	154.2	145.0	152.9
Cash flows from investing activities
Acquisition of businesses, net of cash and cash equivalents acquired		(396.7)
Proceeds from sales of investments	2.8		7.5
Purchases of property and equipment	(23.7)	(34.1)	(31.4)
Purchase of intangible assets		(7.7)
Investment in direct financing lease			(17.0)
Proceeds from direct financing leases			17.0
Equity method investment			(18.4)
Net cash used in investing activities	(20.9)	(438.5)	(42.3)
Cash flows from financing activities
Proceeds from issuance of convertible debt, net of issuance costs		514.5
Payment of acquisition-related liabilities			(5.3)
Payment of debt		(220.0)	(18.8)
Purchases of treasury stock	(118.5)	(93.6)	(88.0)
Proceeds from issuance of shares	21.3	32.3	24.7
Payment of debt issuance costs		(1.1)	(1.2)
Excess tax benefit from share-based compensation			1.1
Payroll taxes for deferred stock and market stock units	(9.4)	(5.4)	(6.6)
Net cash provided by/(used in) financing activities	(106.6)	226.7	(94.1)
Effect of exchange rate changes on cash and cash equivalents	0.1		(0.9)
Net increase/(decrease) in cash and cash equivalents	26.8	(66.8)	15.6
Cash and cash equivalents at beginning of year	301.0	367.8	352.2
Cash and cash equivalents at end of year	327.8	301.0	367.8
Supplemental disclosures of cash flow information
Cash paid for interest	3.6	3.8	6.0
Cash paid for taxes	16.4	26.4	22.1
Cash refund on taxes	6.4	1.7	10.1
Non-cash investing and financing activities:
Property and equipment received but unpaid	$ 3.8	6.6	$ 6.0
Common stock issued pursuant to acquisition		$ 39.1

Organization and Summary of Significant Accounting Policies - Accounts Receivable Balance Percentage of Different Customers (Detail) - Accounts Receivable [Member] - Credit Concentration Risk [Member]

12 Months Ended

Jun. 29, 2019

Jun. 30, 2018

Customer A [Member]

Revenue, Major Customer [Line Items]

Concentration Risk, Percentage

25.00%

13.00%

Customer B [Member]

Revenue, Major Customer [Line Items]

Concentration Risk, Percentage

16.00%

^[1]

Customer C [Member]

Revenue, Major Customer [Line Items]

Concentration Risk, Percentage

^[1]

11.00%

Customer D [Member]

Revenue, Major Customer [Line Items]

Concentration Risk, Percentage

^[1]

10.00%

[1]	Less than 10%

Acquisitions (Tables)

12 Months Ended

Jun. 29, 2019

Conexant Systems, LLC [Member]

Business Acquisition [Line Items]

Summary of Estimated Fair Values of Assets Acquired and Liabilities Assumed

The following table summarizes the final amounts recorded for the fair values of the assets acquired and liabilities assumed (in millions):

Cash	$	4.3
Accounts receivable		11.7
Inventory		51.0
Other current assets		3.5
Property and equipment		3.2
Acquired intangible assets		145.7
Other assets		0.9
Total identifiable assets acquired		220.3
Accounts payable		14.2
Accrued compensation		1.3
Other accrued liabilities		9.3
Other long-term liabilities		3.0
Net identifiable assets acquired		192.5
Goodwill		153.7
Net assets acquired	$	346.2

Marvell Technology Group Ltd [Member]

Business Acquisition [Line Items]

Summary of Estimated Fair Values of Assets Acquired and Liabilities Assumed

The following table summarizes the amounts recorded for the estimated fair values of the assets acquired and liabilities assumed as of the Marvell Closing Date (in millions):

Inventory	$	28.4
Property and equipment		5.0
Acquired intangible assets		48.7
Total identifiable assets acquired		82.1
Accrued liabilities		0.7
Net identifiable assets acquired		81.4
Goodwill		12.3
Net assets acquired	$	93.7

Restructuring Activities (Tables)

12 Months Ended

Jun. 29, 2019

Restructuring And Related Activities [Abstract]

Restructuring Liability Activities

The restructuring liability activities during fiscal 2019 for restructurings initiated in fiscal 2019 were as follows (in millions):

	Employee Severance
	and Benefits
Accruals	$	17.7
Cash payments		(12.5	)
Balance as of June 30, 2019	$	5.2

The restructuring liability activities during fiscal years 2018 and 2019 for restructurings initiated in fiscal 2018 were as follows (in millions):

	Employee Severance			Facility Consolidation
	and Benefits			and Related Charges			Total
Accruals	$	11.0		$	1.0		$	12.0
Cash payments		(8.8	)		(0.2	)		(9.0	)
Non-cash settlements		—			(0.7	)		(0.7	)
Balance as of June 30, 2018		2.2			0.1			2.3
Additional accruals	$	0.2			—		$	0.2
Cash payments		(2.4	)		(0.1	)		(2.5	)
Balance as of June 30, 2019	$	—		$	—		$	—

The restructuring liability activities during fiscal years 2018, 2017, and 2016 for restructurings initiated in fiscal 2016 were as follows (millions):

	Employee Severance			Facility Consolidation
	and Benefits			and Related Charges			Total
Balance as of June 30, 2015	$	—		$	—		$	—
Accruals		6.7						6.7
Balance as of June 30, 2016		6.7			—			6.7
Additional accruals		5.0			2.3			7.3
Cash payments		(11.7	)		(0.9	)		(12.6	)
Non-cash settlements		—			(0.8	)		(0.8	)
Balance as of June 30, 2017		—			0.6			0.6
Adjustments		—			(0.2	)		(0.2	)
Cash payments		—			(0.4	)		(0.4	)
Balance as of June 30, 2018	$	—		$	—		$	—

Employee Benefit Plans

12 Months Ended

Jun. 29, 2019

Compensation And Retirement Disclosure [Abstract]

Employee Benefit Plans

10.	Employee Benefit Plans

401(k) Plan

We have a 401(k) Retirement Savings Plan for full-time employees in the United States. Under the plan, eligible employees may contribute a portion of their net compensation up to the annual limit of $19,000, or $25,000 for employees who are 50 years or older. In fiscal 2019, we provided matching funds of 25% of our employees’ contributions, excluding catch-up contributions. The employer matching funds vest 25% over four years and are fully vested at the end of the fourth year. We made matching contributions of $2.4 million, $2.8 million, and $2.3 million in fiscal 2019, 2018, and 2017 respectively.

Acquired Intangibles (Tables)

12 Months Ended

Jun. 29, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Summary of Life, Gross Carrying Value of Acquired Intangible Assets, and Related Accumulated Amortization

The following table summarizes the life, the gross carrying value of our acquired intangible assets, and the related accumulated amortization as of the end of fiscal 2019 and 2018 (in millions):

			2019							2018
	Weighted Average Life in Years		Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Gross Carrying Value		Accumulated Amortization			Net Carrying Value
Display driver technology		5.3	$	164.0	$	(148.1	)	$	15.9	$	164.0	$	(116.5	)	$	47.5
Audio and video technology		5.3		138.6		(49.4	)		89.2		133.9		(22.8	)		111.1
Customer relationships		4.1		81.8		(49.9	)		31.9		81.8		(38.5	)		43.3
Fingerprint authentication technology		4.7		47.2		(47.2	)		—		55.7		(53.7	)		2.0
Licensed technology and other		4.2		7.7		(3.6	)		4.1		9.0		(3.0	)		6.0
Patents		8.1		4.4		(2.0	)		2.4		4.6		(1.7	)		2.9
Tradename		7.0		1.8		(0.5	)		1.3		1.9		(0.2	)		1.7
Backlog		0.0		—		—			—		0.5		(0.5	)		—
In-process research and development	Not applicable			—		—			—		4.7		—			4.7
Acquired intangibles, gross		4.4	$	445.5	$	(300.7	)	$	144.8	$	456.1	$	(236.9	)	$	219.2

Schedule of Expected Annual Aggregate Amortization Expense

The following table presents expected annual aggregate amortization expense in future fiscal years (in millions):

2020	$	51.4
2021		37.5
2022		32.9
2023		20.4
2024		2.5
Thereafter		0.1
Future amortization	$	144.8

Share-Based Compensation

12 Months Ended

Jun. 29, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Share-Based Compensation

9.	Share-Based Compensation

The purpose of our various share-based compensation plans is to attract, motivate, retain, and reward high-quality employees, directors, and consultants by enabling such persons to acquire or increase their proprietary interest in our common stock in order to strengthen the mutuality of interests between such persons and our stockholders and to provide such persons with annual and long-term performance incentives to focus their best efforts on the creation of stockholder value. Consequently, we determine whether to grant share-based compensatory awards subsequent to the initial award for our employees and consultants primarily on individual performance. Our share-based compensation plans with outstanding awards consist of our 2001 Plan; our 2010 Plan; and our 2010 Employee Stock Purchase Plan, or our 2010 ESPP.

Share-based compensation awards available for grant or issuance for each plan as of the beginning of the fiscal year, including changes in the balance of awards available for grant for fiscal 2019, were as follows:

	Awards						2010
	Available			2010			Employee
	Under All			Incentive			Stock
	Share-Based			Compensation			Purchase
	Award Plans			Plan			Plan
Balance at June 2018		2,210,217			1,969,926			240,291
Additional shares authorized		1,852,498			1,400,000			452,498
Stock options granted		—			—			—
Deferred stock units granted		(1,266,131	)		(1,266,131	)		—
Market stock units granted		(163,059	)		(163,059	)		—
Performance stock units granted		(147,005	)		(147,005	)		—
Performance stock units performance adjustment		(1,065	)		(1,065	)		—
Market stock units performance adjustment		46,663			46,663			—
Purchases under employee stock purchase plan		(544,886	)		—			(544,886	)
Forfeited		1,328,116			1,328,116			—
Fungible Shares Ratio Adjustment		(423,882	)		(423,882	)		—
Balance at June 2019		2,891,466			2,743,563			147,903

Our 2001 Plan, which expired in March 2011, was replaced by our 2010 Plan. Option awards that are currently outstanding under our 2001 Plan will remain outstanding until exercised, delivered, forfeited, or cancelled under the terms of their respective grant agreements.

During the three months ended September 30, 2017, we adopted the ASU for Compensation-Stock Compensation which was issued by the FASB. This update simplifies several aspects of the accounting for employee share-based payment transactions, including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification in the statement of cash flows. Upon adoption of this ASU, we elected to change our accounting policy to account for forfeitures as they occur and we applied the accounting policy change on a modified retrospective basis. As a result of the adoption of this ASU, we recognized the net cumulative effect of this change as a $24.7 million increase to retained earnings, a $1.0 million increase to additional paid-in capital and established an additional $25.7 million of deferred tax assets for research credit and alternative minimum tax credit carryforwards. We have reflected excess tax benefits for share-based payments in the statement of cash flows as operating activities rather than financing activities on a prospective basis and therefore, prior periods have not been adjusted.

Share-based compensation and the related tax benefit recognized in our consolidated statements of income for fiscal 2019, 2018, and 2017 were as follows (in millions):

	2019		2018		2017
Cost of revenue	$	3.1	$	3.2	$	2.2
Research and development		33.7		38.6		33.1
Selling, general, and administrative		22.2		29.5		26.5
Total	$	59.0	$	71.3	$	61.8
Income tax benefit on share-based compensation	$	4.3	$	11.1	$	16.1

We recognize a tax benefit upon expensing certain share-based awards associated with our share-based compensation plans, including nonqualified stock options, DSUs, MSUs, and PSUs, but we cannot recognize a tax benefit concurrent with the recognition of share-based compensation expenses associated with incentive stock options and employee stock purchase plan shares (qualified stock awards). For qualified stock awards we recognize a tax benefit only in the period when disqualifying dispositions of the underlying stock occur, which historically has been up to several years after vesting and in a period when our stock price substantially increases.

We determine excess tax benefit using the long-haul method in which we compare the actual tax benefit associated with the tax deduction from share-based award activity to the hypothetical tax benefit based on the grant date fair values of the corresponding share-based awards. Tax benefit associated with excess tax deduction creditable to income tax provision is recognized when incurred. Tax deficiency associated with a tax shortfall is debited to income tax provision when incurred.

Historically, we have issued new shares in connection with our share-based compensation plans, however, treasury shares are also available for issuance. Any additional shares repurchased under our common stock repurchase program will be available for issuance under our share-based compensation plans.

Stock Options

Our share-based compensation plans with outstanding stock option awards include our 2001 Plan and our 2010 Plan. Under our 2010 Plan, we may grant incentive stock options or nonqualified stock options to purchase shares of our common stock at not less than 100% of the fair market value, or FMV, on the date of grant.

Options granted under our 2010 Plan generally vest three to four years from the vesting commencement date and expire seven years after the date of grant if not exercised.

Certain stock option activity for fiscal 2019 and balances as of the end of fiscal 2019 were as follows:

	Stock			Weighted
	Option			Average		Intrinsic
	Awards			Exercise		Value
	Outstanding			Price		(In millions)
Balance at June 2018		1,618,209		$	57.14
Exercised		(177,823	)		29.16
Forfeited		(57,091	)		52.96
Expired		(191,366	)		72.40
Balance at June 2019		1,191,929			59.07	$	0.4
Exercisable at June 2019		1,163,841			59.23	$	0.4

The aggregate intrinsic value was determined using the closing price of our common stock on the last trading day of fiscal 2019, or June 28, 2019, of $29.14 and excludes the impact of options that were not in-the-money. Approximately 8% of the stock option awards outstanding were vested and in-the-money as of the end of fiscal 2019.

At the end of fiscal 2019, we estimated that we have 1.2 million fully vested options with an aggregate intrinsic value of $0.4 million, having a weighted average exercise price of $59.07 and a weighted average remaining contractual term of 1.8 years. The weighted average remaining contractual term for the options exercisable is approximately 1.7 years.

Cash received and the aggregate intrinsic value of stock options exercised for fiscal 2019, 2018, and 2017 were as follows (in millions):

	2019		2018		2017
Cash received	$	5.2	$	16.7	$	10.7
Aggregate intrinsic value	$	2.4	$	15.2	$	12.3

There were no stock options granted in fiscal 2019. The fair value of each award granted under our share-based compensation plans for fiscal 2018 and 2017 was estimated at the date of grant using the Black-Scholes option pricing model, assuming no expected dividends and the following range of assumptions:

	2018		2017
Expected volatility	46.2%		45.2% - 48.3%
Expected life in years	4.4		3.8 - 4.6
Risk-free interest rate	1.8%		1.03% - 1.94%
Fair value per award	$	18.04	$	21.08

The unrecognized share-based compensation costs for stock options granted under our various plans were approximately $0.4 million as of the end of fiscal 2019, to be recognized over a weighted average period of approximately 0.71 years.

Deferred Stock Units

Our 2010 Plan provides for the grant of DSU awards to our employees, consultants, and directors. A DSU is a promise to deliver shares of our common stock at a future date in accordance with the terms of the DSU grant agreement. We began granting DSUs in January 2006.

DSUs granted under our 2010 Plan generally vest ratably over three to four years from the vesting commencement date. Delivery of shares under the plan takes place on the quarterly vesting dates. At the delivery date, we withhold shares to cover statutory minimum tax withholding by delivering a net quantity of shares. Until delivery of shares, the grantee has no rights as a stockholder.

An election to defer delivery of the underlying shares for unvested DSUs can be made by the grantee provided the deferral election is made at least one year before vesting and the deferral period is at least five years from the scheduled delivery date.

DSU activity, including DSUs granted, delivered, and forfeited in fiscal 2019, and the balance and aggregate intrinsic value of DSUs as of the end of fiscal 2019 was as follows:

				Aggregate		Weighted
				Intrinsic		Average
	DSU Awards			Value		Grant Date
	Outstanding			(in millions)		Fair Value
Balance at June 30, 2018		1,853,558				$	49.75
Granted		1,266,131					36.90
Delivered		(729,564	)				54.67
Forfeited		(511,272	)				43.49
Balance at June 30, 2019		1,878,853		$	54.7		40.90

Of the shares delivered, 172,363 shares valued at $6.7 million were withheld to meet statutory minimum tax withholding requirements. The aggregate intrinsic value was determined using the closing price of our common stock on the last trading day of fiscal 2019, or June 28, 2019, of $29.14.

The unrecognized share-based compensation cost for DSUs granted under our 2010 Plan was approximately $50.9 million as of the end of fiscal 2019, which will be recognized over a weighted average period of approximately 1.84 years. The aggregate market value of DSUs delivered in fiscal 2019, 2018, and 2017 was $35.7 million, $21.4 million, and $24.3 million, respectively.

Market Stock Units

Our 2010 Plan provides for the grant of MSU awards, to our employees, consultants, and directors. An MSU is a promise to deliver shares of our common stock at a future date based on the achievement of market-based performance requirements in accordance with the terms of the MSU grant agreement.

We have granted MSUs to our executive officers and other management members, which are designed to vest in three tranches with the target quantity for each tranche equal to one-third of the total MSU grant. The first tranche vests based on a one-year performance period; the second tranche vests based on a two-year performance period; and the third tranche vests based on a three-year performance period. Performance is measured based on the achievement of a specified level of total stockholder return, or TSR, relative to the TSR of the S&P Semiconductor Select Industry Index, or SPSISC Index, for grants made beginning in fiscal 2018 and relative to the Philadelphia Semiconductor Index, or SOX Index, for grants made prior to fiscal 2018. The potential payout ranges from 0% to 200% of the grant target quantity and is adjusted on a two-to-one ratio based on our TSR performance relative to the SPSISC Index TSR or SOX Index TSR using the following formula:

(100% + ([Synaptics TSR—{SPSISC Index TSR or SOX Index TSR}] x 2))

The payout for tranche one and two will not exceed 100% and the payout for tranche three will be calculated based on the total target quantity for the entire grant multiplied by the payout factor, based on performance for the three-year performance period, less shares issued for the first tranche and the second tranche.

Delivery of shares earned, if any, will take place on the dates provided in the applicable MSU grant agreement, assuming the grantee is still an employee, consultant, or director of our company at the end of the applicable performance period. On the delivery date, we withhold shares to cover statutory tax withholding requirements and deliver a net quantity of shares to the employee, consultant, or director after such withholding. Until delivery of shares, the grantee has no rights as a stockholder with respect to any shares underlying the MSU award.

MSU activity, including MSUs granted, delivered, and forfeited in fiscal 2019, and the balance and aggregate intrinsic value of MSUs as of the end of fiscal 2019 were as follows:

				Aggregate		Weighted
				Intrinsic		Average
	MSU Awards			Value		Grant Date
	Outstanding			(in millions)		Fair Value
Balance at June 30, 2018		354,726				$	59.37
Granted		163,059					46.69
Performance adjustment		(46,663	)				—
Delivered		(92,202	)				53.33
Forfeited		(168,188	)				59.41
Balance at June 30, 2019		210,732		$	6.1		52.15

As a result of the Synaptics TSR underperforming the SOX Index TSR by 154 percentage points for the payout period ended in fiscal 2019, we did not deliver any of the targeted shares underlying the October 2015 MSU grants. As a result of the Synaptics TSR underperforming the SOX Index TSR by 90 percentage points for the payout period ended in fiscal 2019, we did not deliver any of the targeted shares underlying the October 2016 MSU grants. As a result of the Synaptics TSR outperforming the SOX Index TSR by 11 percentage points for the payout period ended in fiscal 2019, we delivered 100% of the targeted shares underlying the October and December 2017 MSU grants.

Of the shares delivered, 33,981 shares valued at $1.3 million were withheld to meet statutory minimum tax withholding requirements. The aggregate intrinsic value assumes a 100% payout factor and was determined using the closing price of our common stock on the last trading day of fiscal 2019, or June 28, 2019, of $29.14.

The fair value of each MSU granted from our plans for fiscal 2019, 2018, and 2017 was estimated at the date of grant using the Monte Carlo simulation model, assuming no expected dividends and the following assumptions:

	2019			2018	2017
Expected volatility of company		50.58	%	49.16% - 50.60%		52.54	%
Expected volatility of SOX index		23.40	%	22.37% - 22.52%		21.23	%
Correlation coefficient		0.51		0.52 - 0.53		0.45
Expected life in years		2.88		2.80 - 2.92		2.92
Risk-free interest rate		2.92	%	1.72% - 1.88%		1.01	%
Fair value per award	$27.70 - $85.52			$48.22 - $59.19	$67.51

We amortize the compensation expense over the three-year performance and service period. The unrecognized share-based compensation cost of our outstanding MSUs was approximately $7.0 million as of the end of fiscal 2019, which will be recognized over a weighted average period of approximately 0.94 years.

Performance Stock Units

Our 2010 Plan provides for the grant of PSU awards to our employees, consultants, and directors. A PSU is a promise to deliver shares of our common stock at a future date based on the achievement of performance-based requirements in accordance with the terms of the PSU grant agreement.

We have granted PSUs to our executive officers and other management members, which are designed to vest in three tranches with the target quantity for each tranche equal to one-third of the total PSU grant. The grants have a specific one-year performance period and vesting occurs over three service periods with the final service period ending approximately three years from the grant date. Performance is measured based on the achievement of a specified level of non-GAAP earnings per share. The potential payout ranges from 0% to 200% of the grant target quantity and is adjusted on a linear basis with a payout triggering if our non-GAAP earnings per share equals greater than 65% of the target with a maximum payout achieved at 135% of target.

Delivery of shares earned, if any, will take place on the dates provided in the applicable PSU grant agreement, assuming the grantee is still an employee, consultant, or director of our company at the end of the applicable service period. On the delivery date, we withhold shares to cover statutory tax withholding requirements and deliver a net quantity of shares to the employee, consultant, or director after such withholding. Until delivery of shares, the grantee has no rights as a stockholder with respect to any shares underlying the PSU award.

During the fiscal year ended June 30, 2019, PSU activity, including PSUs granted, delivered, and forfeited, and the balance and aggregate intrinsic value of PSUs as of June 30, 2019 was as follows:

				Aggregate		Weighted
				Intrinsic		Average
	PSU Awards			Value		Grant Date
	Outstanding			(in millions)		Fair Value
Balance at June 30, 2018		294,541				$	39.48
Granted		147,005					35.41
Performance adjustment		1,065					—
Delivered		(92,470	)				39.54
Forfeited		(157,523	)				37.00
Balance at June 30, 2019		192,618		$	5.6		38.35

We value PSUs using the aggregate intrinsic value on the date of grant and amortize the compensation expense over the three-year service period on a ratable basis, dependent upon the probability of meeting the performance measures. Of the shares delivered, 36,332 shares valued at $1.4 million were withheld to meet statutory minimum tax withholding requirements. The unrecognized share-based compensation cost of our outstanding PSUs was approximately $2.4 million as of June 30, 2019, which will be recognized over a weighted average period of approximately 1.03 years.

Employee Stock Purchase Plan

Our 2010 ESPP, became effective on January 1, 2011. The 2010 ESPP allows employees to designate up to 15% of their base compensation, subject to legal restrictions and limitations, to purchase shares of common stock at 85% of the lesser of the FMV at the beginning of the offering period or the exercise date. The offering period extends for up to two years and includes four exercise dates occurring at six-month intervals. Under the terms of our 2010 ESPP, if the FMV at an exercise date is less than the FMV at the beginning of the offering period, the current offering period will terminate and a new two-year offering period will commence.

Shares purchased, weighted average purchase price, cash received, and the aggregate intrinsic value for employee stock purchase plan purchases in fiscal 2019, 2018, and 2017 were as follows (in millions, except shares purchased and weighted average purchase price):

	2019		2018		2017
Shares purchased		544,886		486,263		302,085
Weighted average purchase price	$	29.48	$	32.07	$	46.74
Cash received	$	16.1	$	15.6	$	14.1
Aggregate intrinsic value	$	2.8	$	3.9	$	2.7

The fair value of each award granted under our 2010 ESPP for fiscal 2019, 2018, and 2017 was estimated using the Black-Scholes option pricing model, assuming no expected dividends and the following range of assumptions:

	2019		2018		2017
Expected volatility	43.8%-44.23%		43.7% - 49.8%		38.4% - 54.9%
Expected life in years	0.5 - 1.5		0.5 - 2.0		0.5 - 2.0
Risk-free interest rate	2.43%-2.68%		1.42% - 2.45%		0.62% - 1.20%
Fair value per award	$	15.63	$	13.54	$	20.44

The expected volatility is based on either implied volatility for the expected lives of 0.5 years or a weighting of implied and historical volatility for expected lives greater than 0.5 years. The expected life is the period starting at the enrollment date until each purchase date remaining in the offering period at the date of enrollment in the plan. The risk-free interest rate is based on U.S. Treasury yields or yield curve in effect for each expected life.

Unrecognized share-based compensation costs for awards granted under our 2010 ESPP at the end of fiscal 2019 were approximately $3.4 million that will be amortized over the next 4 months.

Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jun. 29, 2019

Investments in Available-for-Sale Securities and Cash Equivalents

Our cash equivalents and investments classified as available-for-sale securities as of the end of fiscal 2019 and 2018 were as follows (in millions):

	2019
			Gross
	Amortized		Unrealized		Fair
	Cost		Gains		Value
Reported as cash equivalents:
Money market funds	$	313.7	$	—	$	313.7
Total available-for-sale securities	$	313.7	$	—	$	313.7

	2018
			Gross
	Amortized		Unrealized		Fair
	Cost		Gains		Value
Reported as cash equivalents:
Money market funds	$	275.2	$	—	$	275.2
Reported as non-current assets:
Auction rate securities		—		1.5		1.5
Total available-for-sale securities	$	275.2	$	1.5	$	276.7

Financial Assets Measured at Fair Value on a Recurring Basis

Financial assets measured at fair value on a recurring basis, by level within the fair value hierarchy, as of the end of fiscal 2019 and 2018 were as follows (in millions):

	2019						2018
	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Assets:
Money market	$	313.7	$	—	$	—	$	275.2	$	—	$	—
Auction rate securities		—		—		—		—		—		1.5
Total available-for-sale securities	$	313.7	$	—	$	—	$	275.2	$	—	$	1.5

Changes in Fair Value of Level 3 Financial Assets

Changes in fair value of our Level 3 financial assets for fiscal 2019 and 2018 were as follows (in millions):

	2019			2018
Beginning balance	$	1.5		$	1.5
Redemptions		(1.5	)		—
Ending balance	$	—		$	1.5

Accounts Receivable Balance Percentage of Different Customers

The following customers accounted for more than 10% of our accounts receivable balance as of the end of fiscal 2019 and 2018:

	2019	2018
Customer A	25%	13%
Customer B	16%	*
Customer C	*	11%
Customer D	*	10%

*	Less than 10%

Inventories

Inventories are stated at the lower of cost (first-in, first-out method) or net realizable value as of the end of fiscal 2019 and 2018 and consisted of the following (in millions):

	2019		2018
Raw materials and work-in-progress	$	110.7	$	105.0
Finished goods		48.0		26.2
	$	158.7	$	131.2

Schedule of Changes in Goodwill

	2019		2018
Beginning balance	$	372.8	$	206.8
Acquisition activity		—		166.0
Ending balance	$	372.8	$	372.8

Other Accrued Liabilities

As of the end of fiscal 2019 and 2018, other accrued liabilities consisted of the following (in millions):

	2019		2018
Customer obligations	$	52.0	$	26.4
Inventory obligations		26.7		28.8
Warranty		4.0		5.5
Other		23.4		19.0
	$	106.1	$	79.7

Topic 606 [Member]

Topic 606 Disclosure of Impact of Adoption to Condensed Consolidated Statements

Adjustments reflected in the consolidated balance sheets:

	As of June 30, 2019
						Pro forma as if
	As reported under					previous standard
	new standard		Adjustments			was in effect
Accounts receivable, net	$	230.0	$	(5.0	)	$	225.0
Inventories		158.7		0.9			159.6
Prepaid expenses and other current assets		14.6		(0.9	)		13.7
Total assets		1,409.8		(5.0	)		1,404.8

Other accrued liabilities		106.1		(5.0	)		101.1
Total liabilities and stockholders' equity		1,409.8		(5.0	)		1,404.8

Adjustments reflected in the consolidated statement of cash flows:

	Twelve Months Ended June 30, 2019
							Pro forma as if
	As reported under						previous standard
	new standard			Adjustments			was in effect
Cash flows from operating activities:
Accounts receivable, net	$	64.3		$	(0.2	)	$	64.1
Inventories		(27.5	)		(0.6	)		(28.1	)
Prepaid expenses and other current assets		3.6			0.6			4.2
Other accrued liabilities		20.5			0.2			20.7

Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Income Statement [Abstract]
Net revenue	$ 1,472.2	$ 1,630.3	$ 1,718.2
Cost of revenue	975.1	1,150.2	1,194.6
Gross margin	497.1	480.1	523.6
Operating expenses:
Research and development	341.1	363.2	292.3
Selling, general, and administrative	130.4	154.0	137.6
Acquired intangibles amortization	11.7	12.8	11.7
Restructuring costs	17.7	12.0	7.3
Retention costs	2.5
Litigation settlement charge			10.0
Total operating expenses	503.4	542.0	458.9
Operating income/(loss)	(6.3)	(61.9)	64.7
Interest and other income	3.9	2.3	0.7
Interest expense	(21.2)	(22.2)	(6.0)
Impairment recovery on investments, net	2.8		1.9
Income/(loss) before provision for income taxes and equity investment loss	(20.8)	(81.8)	61.3
Provision for income taxes	0.3	40.5	12.2
Equity investment loss	(1.8)	(1.8)	(0.3)
Net income/(loss)	$ (22.9)	$ (124.1)	$ 48.8
Net income/(loss) per share:
Basic	$ (0.66)	$ (3.63)	$ 1.40
Diluted	$ (0.66)	$ (3.63)	$ 1.37
Shares used in computing net income/(loss) per share:
Basic	34.6	34.2	34.8
Diluted	34.6	34.2	35.6

Commitments and Contingencies - Aggregate Minimum Rental Commitments for Non-Cancelable Operating Leases (Detail) $ in Millions	Jun. 29, 2019 USD ($)
Commitments And Contingencies Disclosure [Abstract]
2020	$ 7.4
2021	3.2
2022	0.9
2023	0.3
2024	0.1
Total minimum operating lease payments	$ 11.9

Employee Benefit Plans - Additional Information (Detail) - USD ($)	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Compensation And Retirement Disclosure [Abstract]
Annual limit of employees contribution to defined contribution plan	$ 19,000
Annual limit of contribution for 50 years or older employees	$ 25,000
Percentage of maximum employer matching contribution to defined contribution plans	25.00%
Employer matching fund vested period	4 years
Employer matching funds vest percentage	25.00%
Contributions by employer matching contributions	$ 2,400,000	$ 2,800,000	$ 2,300,000

Share-Based Compensation - Market Stock Units - Additional Information (Detail) - Market stock units outstanding [Member] $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 29, 2019 USD ($) $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period of the underlying awards	3 years
Potential payout range	100.00%
Potential payout adjustment ratio	2.00%
Shares withheld to meet statutory minimum tax withholding requirements \| shares	33,981
Shares valued withheld to meet statutory minimum tax withholding requirements	$ 1.3
Closing price of common stock used to calculate Aggregate intrinsic value of stock option outstanding \| $ / shares	$ 29.14
Unrecognized share-based compensation cost	$ 7.0
Unrecognized share-based compensation, period for recognition	11 months 8 days
October and December 2017 MSU Grants [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
SOX Index TSR percentage points	11.00%
Percentage of targeted shares, MSU grants	100.00%
October 2015 MSU Grants [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
SOX Index TSR percentage points	154.00%
Percentage of targeted shares, MSU grants	0.00%
October 2016 MSU Grants [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
SOX Index TSR percentage points	90.00%
Percentage of targeted shares, MSU grants	0.00%
Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Potential payout range	0.00%
Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Potential payout range	200.00%
Share-based Compensation Award, First Tranche [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period of the underlying awards	1 year
Share-based Compensation Award, First Tranche [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Potential payout range	100.00%
Share-based Compensation Award, Second Tranche [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period of the underlying awards	2 years
Share-based Compensation Award, Second Tranche [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Potential payout range	100.00%
Share-based Compensation Award, Third Tranche [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period of the underlying awards	3 years

Segment, Customers, and Geographic Information

12 Months Ended

Jun. 29, 2019

Segment Reporting [Abstract]

Segment, Customers, and Geographic Information

12.	Segment, Customers, and Geographic Information

We operate in one segment: the development, marketing, and sale of semiconductor products used in electronic devices and products. We generate our revenue from three broad product categories: the mobile product applications market, the personal computing, or PC, product applications market, and the Internet of Things, or IoT, product market.

Net revenue within geographic areas based on our customers’ locations for fiscal 2019, 2018, and 2017, consisted of the following (in millions):

	2019		2018		2017
China	$	844.8	$	803.2	$	844.8
Taiwan		239.8		235.2		66.4
Japan		234.6		358.6		426.5
Other		64.9		74.9		25.3
South Korea		63.5		67.5		123.8
United States		24.6		90.9		231.4
	$	1,472.2	$	1,630.3	$	1,718.2

Net revenue from external customers for each group of similar products for fiscal 2019, 2018, and 2017 consisted of the following (in millions):

	2019		2018		2017
Mobile product applications	$	900.1	$	1,021.0	$	1,406.0
PC product applications		258.9		257.8		229.2
IoT product applications		313.2		351.5		83.0
	$	1,472.2	$	1,630.3	$	1,718.2

Long-lived assets within geographic areas as of the end of fiscal 2019 and 2018 consisted of the following (in millions):

	2019		2018
United States	$	149.8	$	193.3
Asia/Pacific		257.0		273.8
Europe		213.8		242.7
	$	620.6	$	709.8

Our goodwill of $372.8 million has been allocated to two reporting units which include IoT and Mobile/PC.

Major customers’ revenue as a percentage of total net revenue for fiscal 2019, 2018, and 2017 were as follows:

	2019	2018	2017
Customer A	15%	15%	24%
Customer B	14%	*	10%
Customer C	10%	*	*
Customer D	*	12%	*
Customer E	*	*	19%

*	Less than 10%

Stockholders' Equity - Shares Reserved for Future Issuance (Detail) - shares	Jun. 29, 2019	Jun. 30, 2018
Class Of Stock [Line Items]
Awards available for grant under all share-based compensation plans	2,891,466	2,210,217
Reserved for future issuance	6,365,598
Stock options outstanding [Member]
Class Of Stock [Line Items]
Awards available for grant under all share-based compensation plans	1,191,929
Deferred stock units outstanding [Member]
Class Of Stock [Line Items]
Awards available for grant under all share-based compensation plans	1,878,853
Market stock units outstanding [Member]
Class Of Stock [Line Items]
Awards available for grant under all share-based compensation plans	210,732
Performance stock units outstanding [Member]
Class Of Stock [Line Items]
Awards available for grant under all share-based compensation plans	192,618

Commitments and Contingencies (Tables)

12 Months Ended

Jun. 29, 2019

Commitments And Contingencies Disclosure [Abstract]

Aggregate Minimum Rental Commitments for Non-cancelable Operating Leases

The aggregate minimum rental commitments in future fiscal years for non-cancelable operating leases with initial or remaining terms in excess of one year were as follows (in millions):

	Operating
	Lease
Fiscal Year	Payments
2020	$	7.4
2021		3.2
2022		0.9
2023		0.3
2024		0.1
Total minimum operating lease payments	$	11.9

Net Income/(Loss) Per Share

12 Months Ended

Jun. 29, 2019

Earnings Per Share [Abstract]

Net Income/(Loss) Per Share

2.	Net Income/(Loss) Per Share

The computation of basic and diluted net income per share for fiscal 2019, 2018, and 2017 was as follows (in millions, except per share amounts):

	2019			2018			2017
Numerator:
Net income/(loss)	$	(22.9	)	$	(124.1	)	$	48.8
Denominator:
Shares, basic		34.6			34.2			34.8
Effect of dilutive share-based awards		—			—			0.8
Shares, diluted		34.6			34.2			35.6
Net income/(loss) per share:
Basic	$	(0.66	)	$	(3.63	)	$	1.40
Diluted	$	(0.66	)	$	(3.63	)	$	1.37

Diluted net income per share does not include the effect of potential common shares related to certain share-based awards for fiscal 2019, 2018, and 2017 as follows (in millions):

		2019				2018				2017
Share-based awards			2.2				2.3				1.4

These share-based awards were not included in the computation of diluted net income per share because the proceeds received, if any, from such share-based awards combined with the average unamortized compensation costs, were greater than the average market price of our common stock, and therefore, their effect would have been antidilutive.

Our basic net income per share amounts for each period presented have been computed using the weighted average number of shares of common stock outstanding. Our diluted net income per share amounts for each period presented include the weighted average effect of potentially dilutive shares. We used the “treasury stock” method to determine the dilutive effect of our stock options, DSUs, MSUs and PSUs.

Acquisitions

12 Months Ended

Jun. 29, 2019

Business Combinations [Abstract]

Acquisitions

4.	Acquisitions

Conexant

On June 11, 2017, we entered into a securities purchase agreement to acquire all of the outstanding limited liability company interests of Conexant Systems, LLC, or Conexant, a technology leader in voice and audio processing solutions for the smart home, or the Conexant Acquisition. The Conexant Acquisition was intended to increase our presence in the smart home market and increase opportunities to grow revenue. Effective July 25, 2017, or the Conexant Closing Date, we completed the Conexant Acquisition for an initial purchase price of (i) $305.4 million in cash, (ii) 726,666 shares of our common stock, or the Stock Consideration, valued at $39.1 million, and (iii) the assumption of a $3.5 million stock appreciation rights liability, with $16.8 million of the purchase price held in escrow to secure the seller’s indemnification obligations under the purchase agreement and $7.0 million of the purchase price held in escrow to secure the seller’s adjustment escrow obligations under the purchase agreement. Subsequently, we determined that $1.9 million of net adjustments to the purchase price were required, reducing the acquisition date fair value of the consideration transferred to a total of $346.2 million. The Stock Consideration was issued at closing in an exempt private placement.

The Conexant Acquisition was accounted for using the purchase method of accounting in accordance with the business acquisition guidance. Under the purchase accounting method, the total estimated purchase consideration of the acquisition was allocated to the tangible and identifiable intangible assets acquired and liabilities assumed based on their relative fair values. The excess of the purchase consideration over the net tangible and identifiable intangible assets acquired and liabilities was recorded as goodwill. Our estimate of the fair values of the acquired intangible assets at June 30, 2018, was based on established and accepted valuation techniques performed with the assistance of our third-party valuation specialists.

The following table summarizes the final amounts recorded for the fair values of the assets acquired and liabilities assumed (in millions):

Cash	$	4.3
Accounts receivable		11.7
Inventory		51.0
Other current assets		3.5
Property and equipment		3.2
Acquired intangible assets		145.7
Other assets		0.9
Total identifiable assets acquired		220.3
Accounts payable		14.2
Accrued compensation		1.3
Other accrued liabilities		9.3
Other long-term liabilities		3.0
Net identifiable assets acquired		192.5
Goodwill		153.7
Net assets acquired	$	346.2

The estimate of the intangible assets as of June 30, 2018, totaling $145.7 million included the following: $104.9 million was allocated to developed technology and will amortize over an estimated weighted average useful life of 6 years; $38.4 million was allocated to customer relationships and will be amortized over an estimated useful life of 5 years; $1.8 million was allocated to trademarks and will be amortized over an estimated useful life of 7 years; $0.4 million was allocated to backlog and was amortized over an estimated useful life of less than 1 year; and $0.2 million was allocated to in-process research and development, which we began to amortize in fiscal 2019 when the work was determined to be substantively complete and we are amortizing over an estimated useful life of three years. Developed technology consists of semiconductor system solutions for audio and imaging applications. We estimated the fair value of the identified intangible assets using a discounted cash flow model for each of the underlying identified intangible assets. These fair value measurements were based on significant inputs not observable in the market and thus represent a Level 3 measurement. Key assumptions include the level and timing of expected future cash flows, conditions and demands specific to each intangible asset over its remaining useful life, and discount rates we believe to be consistent with the inherent risks associated with each type of asset, which range from 9% to 14%. The fair value of these intangible assets is primarily affected by the projected income and the anticipated timing of the projected income associated with each intangible asset coupled with the discount rates used to derive their estimated present values. We believe the level and timing of expected future cash flows appropriately reflects market participant assumptions.

The value of goodwill reflects the anticipated synergies of the combined operations and workforce of Conexant as of the Conexant Closing Date.

All of the goodwill was deductible for income tax purposes.

Prior to the Conexant Acquisition, we did not have an existing relationship or transactions with Conexant.

Marvell Multimedia Solutions Business

On June 11, 2017, the Company entered into an asset purchase agreement to acquire the assets of the multimedia solutions business of Marvell Technology Group Ltd., or Marvell, a leading provider of advanced video and audio processing applications for the smart home, or the Marvell Business Acquisition. The Marvell Business Acquisition was also intended to increase our presence in the smart home market and increase opportunities to grow revenue. Effective September 8, 2017, or the Marvell Closing Date, we completed the Marvell Business Acquisition for a purchase price of $93.7 million in cash.

The acquisition was accounted for using the purchase method of accounting in accordance with the business acquisition guidance. Under the purchase accounting method, the total estimated purchase consideration of the acquisition was allocated to the tangible and identifiable intangible assets acquired and liabilities assumed based on their relative fair values. The excess of the purchase consideration over the net tangible and identifiable intangible assets acquired and liabilities was recorded as goodwill. The estimate of the fair values of the acquired intangible assets at June 30, 2018, was based on established and accepted valuation techniques performed with the assistance of our third-party valuation specialists.

The following table summarizes the amounts recorded for the estimated fair values of the assets acquired and liabilities assumed as of the Marvell Closing Date (in millions):

Inventory	$	28.4
Property and equipment		5.0
Acquired intangible assets		48.7
Total identifiable assets acquired		82.1
Accrued liabilities		0.7
Net identifiable assets acquired		81.4
Goodwill		12.3
Net assets acquired	$	93.7

Of the $48.7 million of acquired intangible assets, $29.0 million was allocated to developed technology and will be amortized over an estimated weighted average useful life of 3.6 years; $15.1 million was allocated to customer relationships and will be amortized over an estimated useful life of 4 years, $0.1 million was allocated to backlog and will be amortized over an estimated useful life of less than 1 year; and $4.5 million was allocated to in-process research and development and will be amortized over an estimated useful life to be determined at the date the underlying projects are deemed to be substantively complete. Developed technology consists of semiconductor system solutions for advanced video and audio processing applications. We estimated the fair value of the identified intangible assets using a discounted cash flow model for each of the underlying identified intangible assets. These fair value measurements were based on significant inputs not observable in the market and thus represent a Level 3 measurement. Key assumptions include the level and timing of expected future cash flows, conditions and demands specific to each intangible asset over its remaining useful life, and discount rates we believe to be consistent with the inherent risks associated with each type of asset, which range from 14% to 32%. The fair value of these intangible assets is primarily affected by the projected income and the anticipated timing of the projected income associated with each intangible asset, coupled with the discount rates used to derive their estimated present values. We believe the level and timing of expected future cash flows appropriately reflects market participant assumptions.

The value of goodwill reflects the anticipated synergies of the combined operations and workforce of the transferred Marvell Business Acquisition assets as of the Marvell Closing Date.

All of the goodwill was deductible for income tax purposes.

Prior to the Marvell Business Acquisition, we did not have an existing relationship or transactions with Marvell.

Stockholders' Equity - Additional Information (Detail) - USD ($)	12 Months Ended
	Jun. 29, 2020	Jun. 29, 2019	Aug. 23, 2019	Jun. 30, 2018
Class Of Stock [Line Items]
Preferred stock, shares authorized		10,000,000		10,000,000
Preferred stock, shares outstanding		0		0
Stock repurchase program authorized amount		$ 1,300,000,000
Common stock repurchase program expiry date		Jul. 31, 2019
Stock repurchase program remaining authorized amount		$ 107,600,000
Subsequent Event [Member]
Class Of Stock [Line Items]
Stock repurchase program authorized amount			$ 100,000,000.0
Common stock repurchase program expiry date	Jul. 31, 2021

Net Income/(Loss) Per Share - Computation of Basic and Diluted Net Income Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Numerator:
Net income/(loss)	$ (22.9)	$ (124.1)	$ 48.8
Denominator:
Shares, basic	34.6	34.2	34.8
Effect of dilutive share-based awards			0.8
Shares, diluted	34.6	34.2	35.6
Net income/(loss) per share:
Basic	$ (0.66)	$ (3.63)	$ 1.40
Diluted	$ (0.66)	$ (3.63)	$ 1.37

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Stockholders' Equity (Tables)

12 Months Ended

Jun. 29, 2019

Equity [Abstract]

Shares Reserved for Future Issuance

Shares of common stock reserved for future issuance as of the end of fiscal 2019 were as follows:

Stock options outstanding			1,191,929
Deferred stock units outstanding			1,878,853
Market stock units outstanding			210,732
Performance stock units outstanding			192,618
Awards available for grant under all share-based compensation plans			2,891,466
Reserved for future issuance			6,365,598

Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Commitments Contingencies And Litigation [Line Items]
Period of expiration dates of operating leases for office facilities	2019 to 2024
Total rent expense, recognized on a straight-line basis	$ 10.3	$ 12.0	$ 10.6
Minimum [Member]
Commitments Contingencies And Litigation [Line Items]
Duration of renewal options of facilities under operating leases	1 year
Maximum [Member]
Commitments Contingencies And Litigation [Line Items]
Duration of renewal options of facilities under operating leases	5 years

Debt (Tables)

12 Months Ended

Jun. 29, 2019

Debt Disclosure [Abstract]

Schedule of Contractual Interest Expense and Amortization of Discount on Notes

The contractual interest expense and amortization of discount on the Notes for fiscal 2019, were as follows (in millions):

	Fiscal
	2019
Interest expense	$	2.6
Amortization of discount and debt issuance costs		17.6
Total interest	$	20.2

Consolidated Statements of Stockholders Equity - USD ($) $ in Millions	Total	As Adjusted [Member]	Common Stock [Member]	Common Stock [Member] As Adjusted [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] As Adjusted [Member]	Treasury Stock [Member]	Treasury Stock [Member] As Adjusted [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Other Comprehensive Income [Member] As Adjusted [Member]	Retained Earnings [Member]	Retained Earnings [Member] As Adjusted [Member]
Balance, value at Jun. 25, 2016	$ 705.0		$ 0.1		$ 928.6		$ (892.3)		$ 3.3		$ 665.3
Balance, shares at Jun. 25, 2016			59,532,148
Net income/(loss)	48.8										48.8
Other comprehensive income	(1.8)								(1.8)
Issuance of common stock for share-based award compensation plans	24.7				24.7
Issuance of common stock for share-based award compensation plans, shares			1,047,763
Payroll taxes for deferred stock units	(6.6)				(6.6)
Purchases of treasury stock	(88.0)						(88.0)
Tax deficiency associated with share-based awards	(3.7)				(3.7)
Share-based compensation	61.8				61.8
Balance, value at Jun. 24, 2017	740.2	$ 757.6	$ 0.1	$ 0.1	1,004.8	$ 1,005.8	(980.3)	$ (980.3)	1.5	$ 1.5	714.1	$ 730.5
Balance, shares at Jun. 24, 2017			60,579,911	60,579,911
Cumulative effect of changes in accounting principles for income taxes: intra-entity transfers of assets other than inventory	(8.3)										(8.3)
Cumulative effect of changes in accounting principles for share-based compensation	25.7				1.0						24.7
Net income/(loss)	(124.1)										(124.1)
Issuance of common stock for share-based award compensation plans	32.3				32.3
Issuance of common stock for share-based award compensation plans, shares			1,583,102
Issuance of common stock for acquisition	39.1				39.1
Issuance of common stock for acquisition, shares			726,666
Payroll taxes for deferred stock units	(5.4)				(5.4)
Purchases of treasury stock	(93.6)						(93.6)
Share-based compensation	71.3				71.3
Issuance of Convertible debt	52.1				52.1
Balance, value at Jun. 30, 2018	729.3		$ 0.1		1,195.2		(1,073.9)		1.5		606.4
Balance, shares at Jun. 30, 2018			62,889,679
Net income/(loss)	(22.9)										(22.9)
Other comprehensive income	(1.5)								$ (1.5)
Issuance of common stock for share-based award compensation plans	21.3				21.3
Issuance of common stock for share-based award compensation plans, shares			1,394,269
Payroll taxes for deferred stock units	(9.4)				(9.4)
Purchases of treasury stock	(118.5)						(118.5)
Share-based compensation	59.0				59.0
Balance, value at Jun. 29, 2019	$ 657.3		$ 0.1		$ 1,266.1		$ (1,192.4)				$ 583.5
Balance, shares at Jun. 29, 2019			64,283,948

Organization and Summary of Significant Accounting Policies - Topic 606 Disclosure of Impact of Adoption to Condensed Consolidated Balance Sheets (Detail) - USD ($) $ in Millions	Jun. 29, 2019	Jun. 30, 2018
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Accounts receivable, net	$ 230.0	$ 289.1
Inventories	158.7	131.2
Prepaid expenses and other current assets	14.6	18.2
Total assets	1,409.8	1,499.8
Other accrued liabilities	106.1	79.7
Total liabilities and stockholders' equity	1,409.8	$ 1,499.8
Adjustments [Member] \| Topic 606 [Member]
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Accounts receivable, net	(5.0)
Inventories	0.9
Prepaid expenses and other current assets	(0.9)
Total assets	(5.0)
Other accrued liabilities	(5.0)
Total liabilities and stockholders' equity	(5.0)
Proforma as if previous standard was in effect [Member] \| Topic 606 [Member]
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Accounts receivable, net	225.0
Inventories	159.6
Prepaid expenses and other current assets	13.7
Total assets	1,404.8
Other accrued liabilities	101.1
Total liabilities and stockholders' equity	$ 1,404.8

Segment, Customers, and Geographic Information (Tables)

12 Months Ended

Jun. 29, 2019

Net Revenue within Geographic Areas Based on Customers' Locations

Net revenue within geographic areas based on our customers’ locations for fiscal 2019, 2018, and 2017, consisted of the following (in millions):

	2019		2018		2017
China	$	844.8	$	803.2	$	844.8
Taiwan		239.8		235.2		66.4
Japan		234.6		358.6		426.5
Other		64.9		74.9		25.3
South Korea		63.5		67.5		123.8
United States		24.6		90.9		231.4
	$	1,472.2	$	1,630.3	$	1,718.2

Net Revenue from External Customers

Net revenue from external customers for each group of similar products for fiscal 2019, 2018, and 2017 consisted of the following (in millions):

	2019		2018		2017
Mobile product applications	$	900.1	$	1,021.0	$	1,406.0
PC product applications		258.9		257.8		229.2
IoT product applications		313.2		351.5		83.0
	$	1,472.2	$	1,630.3	$	1,718.2

Long-Lived Assets within Geographic Areas

Long-lived assets within geographic areas as of the end of fiscal 2019 and 2018 consisted of the following (in millions):

	2019		2018
United States	$	149.8	$	193.3
Asia/Pacific		257.0		273.8
Europe		213.8		242.7
	$	620.6	$	709.8

Sales Revenue, Net [Member]

Major Customers' Revenue as a Percentage of Total Net Revenue

Major customers’ revenue as a percentage of total net revenue for fiscal 2019, 2018, and 2017 were as follows:

	2019	2018	2017
Customer A	15%	15%	24%
Customer B	14%	*	10%
Customer C	10%	*	*
Customer D	*	12%	*
Customer E	*	*	19%

*	Less than 10%

Segment, Customers, and Geographic Information - Long-Lived Assets within Geographic Areas (Detail) - USD ($) $ in Millions	Jun. 29, 2019	Jun. 30, 2018
Long Lived Assets By Geographical Areas [Line Items]
Long-lived assets	$ 620.6	$ 709.8
United States [Member]
Long Lived Assets By Geographical Areas [Line Items]
Long-lived assets	149.8	193.3
Asia/Pacific [Member]
Long Lived Assets By Geographical Areas [Line Items]
Long-lived assets	257.0	273.8
Europe [Member]
Long Lived Assets By Geographical Areas [Line Items]
Long-lived assets	$ 213.8	$ 242.7

Organization and Summary of Significant Accounting Policies - Inventories (Detail) - USD ($) $ in Millions	Jun. 29, 2019	Jun. 30, 2018
Inventory Disclosure [Abstract]
Raw materials and work-in-progress	$ 110.7	$ 105.0
Finished goods	48.0	26.2
Total Inventories	$ 158.7	$ 131.2

Income Taxes - Provision for Income Taxes Differs from Federal Statutory Rate (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Income Tax Disclosure [Abstract]
Provision at U.S. federal statutory tax rate	$ (4.4)	$ (22.9)	$ 21.5
Qualified stock options	4.0	4.9	5.5
Shortfall related to share-based compensation	3.3	4.1
Non-deductible officer compensation	1.1
Business credits	(6.1)	(4.9)	(3.6)
Foreign tax differential	1.0	16.5	(13.2)
Non-deductible portion of contingent consideration			0.9
Change in valuation allowance			(0.8)
Nondeductible amortization	0.7	1.2	1.6
Taxes associated with one-time transition tax		44.1
Impact of corporate tax rate change on deferred taxes		(2.7)
Other differences	0.7	0.2	0.3
Provision for income taxes	$ 0.3	$ 40.5	$ 12.2

Share-Based Compensation - Stock Options - Additional Information (Detail) - Stock option outstanding [Member] - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 28, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of fair market value for which exercise price is designated on incentive and nonqualified stock option grants	100.00%
Options granted under the 2010 Plan	vest three to four years from the vesting commencement date and expire seven years after the date of grant if not exercised.
Closing price of common stock used to calculate Aggregate intrinsic value of stock option outstanding		$ 29.14
Percentage of stock option awards outstanding were vested	8.00%
Number of options vested	1.2
Aggregate intrinsic value of fully vested options and options expected to vest	$ 0.4
Weighted average exercise price of fully vested options and options expected to vest	$ 59.07
Weighted average remaining contractual term of fully vested options and options expected to vest	1 year 9 months 18 days
Weighted average remaining contractual term for exercisable options	1 year 8 months 12 days
Number of options granted	0.0
Unrecognized share-based compensation costs for stock options granted	$ 0.4
Unrecognized share-based compensation, period for recognition	8 months 15 days

Organization and Summary of Significant Accounting Policies - Changes in Fair Value of Level 3 Financial Assets (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Beginning balance	$ 1.5	$ 1.5
Redemptions	$ (1.5)	0.0
Ending balance		$ 1.5

Acquisitions - Summary of Estimated Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Millions	Jun. 29, 2019	Jun. 30, 2018	Sep. 08, 2017	Jul. 25, 2017	Jun. 24, 2017
Business Acquisition [Line Items]
Goodwill	$ 372.8	$ 372.8			$ 206.8
Conexant Systems, LLC [Member]
Business Acquisition [Line Items]
Cash				$ 4.3
Accounts receivable				11.7
Inventory				51.0
Other current assets				3.5
Property and equipment				3.2
Acquired intangible assets				145.7
Other assets				0.9
Total identifiable assets acquired				220.3
Accounts payable				14.2
Accrued compensation				1.3
Other accrued liabilities				9.3
Other long-term liabilities				3.0
Net identifiable assets acquired				192.5
Goodwill				153.7
Net assets acquired				$ 346.2
Marvell Technology Group Ltd [Member]
Business Acquisition [Line Items]
Inventory			$ 28.4
Property and equipment			5.0
Acquired intangible assets			48.7
Total identifiable assets acquired			82.1
Accrued liabilities			0.7
Net identifiable assets acquired			81.4
Goodwill			12.3
Net assets acquired			$ 93.7

Share-Based Compensation - Share-Based Compensation Awards Available for Grant or Issuance (Detail)	12 Months Ended
	Jun. 29, 2019 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Balance beginning	2,210,217
Additional shares authorized	1,852,498
Deferred stock units granted	(1,266,131)
Market stock units granted	(163,059)
Performance stock units granted	(147,005)
Performance stock units performance adjustment	(1,065)
Market stock units performance adjustment	46,663
Purchases under employee stock purchase plan	(544,886)
Forfeited	1,328,116
Fungible Shares Ratio Adjustment	(423,882)
Balance ending	2,891,466
2010 Employee Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Balance beginning	240,291
Additional shares authorized	452,498
Purchases under employee stock purchase plan	(544,886)
Balance ending	147,903
2010 [Member] \| Incentive Compensation Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Balance beginning	1,969,926
Additional shares authorized	1,400,000
Deferred stock units granted	(1,266,131)
Market stock units granted	(163,059)
Performance stock units granted	(147,005)
Performance stock units performance adjustment	(1,065)
Market stock units performance adjustment	46,663
Forfeited	1,328,116
Fungible Shares Ratio Adjustment	(423,882)
Balance ending	2,743,563

Property and Equipment

12 Months Ended

Jun. 29, 2019

Property Plant And Equipment [Abstract]

Property and Equipment

3.	Property and Equipment

Property and equipment as of the end of fiscal 2019 and 2018 consisted of the following (in millions):

	Life	2019			2018
Land	—	$	13.3		$	13.3
Building and building improvements	Up to 35 years		52.7			51.8
Computer equipment	3 - 5 years		48.2			42.9
Manufacturing equipment	1 - 5 years		63.0			78.1
Furniture, fixtures, and leasehold improvements	3 - 10 years		25.1			24.1
Capitalized software	3 - 7 years		33.8			35.0
			236.1			245.2
Accumulated depreciation and amortization			(133.1	)		(127.4	)
Property and equipment, net		$	103.0		$	117.8

In fiscal 2019 and 2018, there was $16.8 million and $8.2 million, respectively, of property and equipment retired which was fully amortized.

Organization and Summary of Significant Accounting Policies - Additional Information (Detail)	1 Months Ended	12 Months Ended
	Apr. 30, 2017 USD ($)	Jun. 29, 2019 USD ($) Segment	Jun. 30, 2018 USD ($)	Jun. 24, 2017 USD ($)	Jun. 25, 2011	Jun. 30, 2019 USD ($)	Apr. 30, 2019	Jul. 01, 2018 USD ($)
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Transfer amount of assets of level one		$ 0	$ 0
Transfer amount of assets of level two		0	0
Transfer amount of assets of level three		0	0
Transfer amount of assets out of level three		0	0
Retained earnings		583,500,000	606,400,000
Contract asset		0
Contract liability		4,500,000						$ 1,100,000
Refund liability		47,500,000						31,600,000
Revenue recognized related to contract liabilities		$ 300,000
Description of payment terms in contract with customer		Payments are generally due within three months of completion of the performance obligation and subsequent invoicing and, therefore, do not include significant financing components.
Equity method investment				$ 18,400,000
Net gain (loss) on foreign currency transactions		$ (1,100,000)	(1,100,000)	(700,000)
Number of reporting units \| Segment		2
Goodwill impairment		$ 0	0	0
Cost of revenue		(975,100,000)	(1,150,200,000)	(1,194,600,000)
Research and development		(341,100,000)	(363,200,000)	(292,300,000)
Selling, general, and administrative		$ (130,400,000)	(154,000,000.0)	(137,600,000)
Number of operating segments \| Segment		1
Contractual life of grant option					7 years
Contractual life of Grant option					10 years
Performance stock units outstanding [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Earlier Options vesting period		3 years
Requisite service period		3 years
Market stock units outstanding [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Earlier Options vesting period		3 years
Requisite service period		3 years
Retention Agreements [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Cost of revenue		$ (100,000)
Research and development		(1,500,000)
Selling, general, and administrative		(900,000)
Thin Touch Developed Technology [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Impairment of acquired intangibles		$ 0	$ 0	$ 0
OXi Technology Ltd [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Equity method investment	$ 18,400,000
Equity method investment, ownership percentage	14.40%
Equity method investment, ownership reduced percentage							13.80%
Maximum [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Revenue, performance obligation, payment terms		3 months
Maximum [Member] \| Deferred stock units outstanding [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Earlier Options vesting period		4 years
Maximum [Member] \| Stock option outstanding [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Earlier Options vesting period		4 years
Maximum [Member] \| Employee stock purchase plan [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Earlier Options vesting period		2 years
Minimum [Member] \| Deferred stock units outstanding [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Earlier Options vesting period		3 years
Minimum [Member] \| Stock option outstanding [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Earlier Options vesting period		3 years
Accounting Standards Update 2014-09 [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Remaining unsatisfied performance obligation						$ 0
Cumulative Impact of Adopting Topic 606 [Member] \| Accounting Standards Update 2014-09 [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Retained earnings								$ 0

Share-Based Compensation - Deferred Stock Units - Additional Information (Detail) - Deferred stock units outstanding [Member] - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 28, 2019	Jun. 30, 2018	Jun. 24, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
DSUs granted under the 2010 Plan	vest ratably over three to four years from the vesting commencement date.
Shares withheld to meet statutory minimum tax withholding requirements	172,363
Shares valued withheld to meet statutory minimum tax withholding requirements	$ 6.7
Closing price of common stock used to calculate Aggregate intrinsic value of stock option outstanding		$ 29.14
Unrecognized share-based compensation cost for DSUs granted	$ 50.9
Unrecognized share-based compensation, period for recognition	1 year 10 months 2 days
Aggregate market value of DSUs	$ 35.7		$ 21.4	$ 24.3

Share-Based Compensation - Share-Based Compensation and Related Tax Benefit Recognized in Consolidated Statements of Income (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total	$ 59.0	$ 71.3	$ 61.8
Income tax benefit on share-based compensation	4.3	11.1	16.1
Cost of Revenue [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total	3.1	3.2	2.2
Research and Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total	33.7	38.6	33.1
Selling, General, and Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total	$ 22.2	$ 29.5	$ 26.5

Share-Based Compensation (Tables)

12 Months Ended

Jun. 29, 2019

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Share-Based Compensation Awards Available for Grant or Issuance

	Awards						2010
	Available			2010			Employee
	Under All			Incentive			Stock
	Share-Based			Compensation			Purchase
	Award Plans			Plan			Plan
Balance at June 2018		2,210,217			1,969,926			240,291
Additional shares authorized		1,852,498			1,400,000			452,498
Stock options granted		—			—			—
Deferred stock units granted		(1,266,131	)		(1,266,131	)		—
Market stock units granted		(163,059	)		(163,059	)		—
Performance stock units granted		(147,005	)		(147,005	)		—
Performance stock units performance adjustment		(1,065	)		(1,065	)		—
Market stock units performance adjustment		46,663			46,663			—
Purchases under employee stock purchase plan		(544,886	)		—			(544,886	)
Forfeited		1,328,116			1,328,116			—
Fungible Shares Ratio Adjustment		(423,882	)		(423,882	)		—
Balance at June 2019		2,891,466			2,743,563			147,903

Share-Based Compensation and Related Tax Benefit Recognized in Consolidated Statements of Income

Share-based compensation and the related tax benefit recognized in our consolidated statements of income for fiscal 2019, 2018, and 2017 were as follows (in millions):

	2019		2018		2017
Cost of revenue	$	3.1	$	3.2	$	2.2
Research and development		33.7		38.6		33.1
Selling, general, and administrative		22.2		29.5		26.5
Total	$	59.0	$	71.3	$	61.8
Income tax benefit on share-based compensation	$	4.3	$	11.1	$	16.1

Balance of Outstanding and Exercisable Stock Options

Certain stock option activity for fiscal 2019 and balances as of the end of fiscal 2019 were as follows:

	Stock			Weighted
	Option			Average		Intrinsic
	Awards			Exercise		Value
	Outstanding			Price		(In millions)
Balance at June 2018		1,618,209		$	57.14
Exercised		(177,823	)		29.16
Forfeited		(57,091	)		52.96
Expired		(191,366	)		72.40
Balance at June 2019		1,191,929			59.07	$	0.4
Exercisable at June 2019		1,163,841			59.23	$	0.4

Cash Received and Aggregate Intrinsic Value of Stock Options Exercised

Cash received and the aggregate intrinsic value of stock options exercised for fiscal 2019, 2018, and 2017 were as follows (in millions):

	2019		2018		2017
Cash received	$	5.2	$	16.7	$	10.7
Aggregate intrinsic value	$	2.4	$	15.2	$	12.3

Shares Purchased, Weighted Average Purchase Price, Cash Received, and Aggregate Intrinsic Value for ESPP

	2019		2018		2017
Shares purchased		544,886		486,263		302,085
Weighted average purchase price	$	29.48	$	32.07	$	46.74
Cash received	$	16.1	$	15.6	$	14.1
Aggregate intrinsic value	$	2.8	$	3.9	$	2.7

Fair Value of Each Award Granted under ESPP

	2019		2018		2017
Expected volatility	43.8%-44.23%		43.7% - 49.8%		38.4% - 54.9%
Expected life in years	0.5 - 1.5		0.5 - 2.0		0.5 - 2.0
Risk-free interest rate	2.43%-2.68%		1.42% - 2.45%		0.62% - 1.20%
Fair value per award	$	15.63	$	13.54	$	20.44

Deferred stock units outstanding [Member]

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Balance and Aggregate Intrinsic Value of Stock Units

DSU activity, including DSUs granted, delivered, and forfeited in fiscal 2019, and the balance and aggregate intrinsic value of DSUs as of the end of fiscal 2019 was as follows:

				Aggregate		Weighted
				Intrinsic		Average
	DSU Awards			Value		Grant Date
	Outstanding			(in millions)		Fair Value
Balance at June 30, 2018		1,853,558				$	49.75
Granted		1,266,131					36.90
Delivered		(729,564	)				54.67
Forfeited		(511,272	)				43.49
Balance at June 30, 2019		1,878,853		$	54.7		40.90

Market stock units outstanding [Member]

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Balance and Aggregate Intrinsic Value of Stock Units

MSU activity, including MSUs granted, delivered, and forfeited in fiscal 2019, and the balance and aggregate intrinsic value of MSUs as of the end of fiscal 2019 were as follows:

				Aggregate		Weighted
				Intrinsic		Average
	MSU Awards			Value		Grant Date
	Outstanding			(in millions)		Fair Value
Balance at June 30, 2018		354,726				$	59.37
Granted		163,059					46.69
Performance adjustment		(46,663	)				—
Delivered		(92,202	)				53.33
Forfeited		(168,188	)				59.41
Balance at June 30, 2019		210,732		$	6.1		52.15

Performance stock units outstanding [Member]

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Balance and Aggregate Intrinsic Value of Stock Units

During the fiscal year ended June 30, 2019, PSU activity, including PSUs granted, delivered, and forfeited, and the balance and aggregate intrinsic value of PSUs as of June 30, 2019 was as follows:

				Aggregate		Weighted
				Intrinsic		Average
	PSU Awards			Value		Grant Date
	Outstanding			(in millions)		Fair Value
Balance at June 30, 2018		294,541				$	39.48
Granted		147,005					35.41
Performance adjustment		1,065					—
Delivered		(92,470	)				39.54
Forfeited		(157,523	)				37.00
Balance at June 30, 2019		192,618		$	5.6		38.35

Stock Option Plans [Member]

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Fair Value of Each Award Granted

The fair value of each award granted under our share-based compensation plans for fiscal 2018 and 2017 was estimated at the date of grant using the Black-Scholes option pricing model, assuming no expected dividends and the following range of assumptions:

	2018		2017
Expected volatility	46.2%		45.2% - 48.3%
Expected life in years	4.4		3.8 - 4.6
Risk-free interest rate	1.8%		1.03% - 1.94%
Fair value per award	$	18.04	$	21.08

Incentive Compensation Plans [member]

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Fair Value of Each Award Granted

	2019			2018	2017
Expected volatility of company		50.58	%	49.16% - 50.60%		52.54	%
Expected volatility of SOX index		23.40	%	22.37% - 22.52%		21.23	%
Correlation coefficient		0.51		0.52 - 0.53		0.45
Expected life in years		2.88		2.80 - 2.92		2.92
Risk-free interest rate		2.92	%	1.72% - 1.88%		1.01	%
Fair value per award	$27.70 - $85.52			$48.22 - $59.19	$67.51

Acquired Intangibles

12 Months Ended

Jun. 29, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Acquired Intangibles

5.	Acquired Intangibles

The following table summarizes the life, the gross carrying value of our acquired intangible assets, and the related accumulated amortization as of the end of fiscal 2019 and 2018 (in millions):

			2019							2018
	Weighted Average Life in Years		Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Gross Carrying Value		Accumulated Amortization			Net Carrying Value
Display driver technology		5.3	$	164.0	$	(148.1	)	$	15.9	$	164.0	$	(116.5	)	$	47.5
Audio and video technology		5.3		138.6		(49.4	)		89.2		133.9		(22.8	)		111.1
Customer relationships		4.1		81.8		(49.9	)		31.9		81.8		(38.5	)		43.3
Fingerprint authentication technology		4.7		47.2		(47.2	)		—		55.7		(53.7	)		2.0
Licensed technology and other		4.2		7.7		(3.6	)		4.1		9.0		(3.0	)		6.0
Patents		8.1		4.4		(2.0	)		2.4		4.6		(1.7	)		2.9
Tradename		7.0		1.8		(0.5	)		1.3		1.9		(0.2	)		1.7
Backlog		0.0		—		—			—		0.5		(0.5	)		—
In-process research and development	Not applicable			—		—			—		4.7		—			4.7
Acquired intangibles, gross		4.4	$	445.5	$	(300.7	)	$	144.8	$	456.1	$	(236.9	)	$	219.2

In fiscal 2019, there was $8.5 million of fingerprint developed technology, $1.3 million of licensed technology and other, $0.5 million of backlog and $0.2 million of patents retired which were fully depreciated. In fiscal 2018, there was $20.1 million of customer relationships, $4.3 million of fingerprint developed technology and $0.1 million of patents retired which were fully depreciated.

Amortization expense is calculated using the straight-line method over the estimated useful lives of the acquired intangibles. The total amortization expense for the acquired intangible assets was $74.4 million in fiscal 2019, $83.9 million in fiscal 2018, and $59.3 million in fiscal 2017. This amortization expense was included in our consolidated statements of operations as acquired intangibles amortization and cost of revenue.

The following table presents expected annual aggregate amortization expense in future fiscal years (in millions):

2020	$	51.4
2021		37.5
2022		32.9
2023		20.4
2024		2.5
Thereafter		0.1
Future amortization	$	144.8

Organization and Summary of Significant Accounting Policies - Schedule of Changes in Goodwill (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Beginning balance	$ 372.8	$ 206.8
Acquisition activity	0.0	166.0
Ending balance	$ 372.8	$ 372.8

Share-Based Compensation - Fair Value of Each Award Granted Under ESPP (Detail) - Employee Stock Purchase Plan [Member] - $ / shares	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected life in years	6 months
Fair value per award	$ 15.63	$ 13.54	$ 20.44
Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility	43.80%	43.70%	38.40%
Expected life in years	6 months	6 months	6 months
Risk-free interest rate	2.43%	1.42%	0.62%
Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility	44.23%	49.80%	54.90%
Expected life in years	1 year 6 months	2 years	2 years
Risk-free interest rate	2.68%	2.45%	1.20%

Restructuring Activities - Restructuring Liability Activities (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 24, 2017	Jun. 25, 2016
2019 Restructuring Plan [Member] \| Employee Severance and Benefits [Member]
Restructuring Cost And Reserve [Line Items]
Additional accruals	$ 17.7
Cash payments	(12.5)
Ending Balance	5.2
November 2017 and April 2018 Restructuring Plan [Member]
Restructuring Cost And Reserve [Line Items]
Beginning Balance	2.3
Additional accruals	0.2	$ 12.0
Cash payments	(2.5)	(9.0)
Non-cash settlements		(0.7)
Ending Balance		2.3
November 2017 and April 2018 Restructuring Plan [Member] \| Employee Severance and Benefits [Member]
Restructuring Cost And Reserve [Line Items]
Beginning Balance	2.2
Additional accruals	0.2	11.0
Cash payments	(2.4)	(8.8)
Ending Balance		2.2
November 2017 and April 2018 Restructuring Plan [Member] \| Facility Consolidation and Related Charges [Member]
Restructuring Cost And Reserve [Line Items]
Beginning Balance	0.1
Additional accruals		1.0
Cash payments	$ (0.1)	(0.2)
Non-cash settlements		(0.7)
Ending Balance		0.1
June 2016 Restructuring Plan [Member]
Restructuring Cost And Reserve [Line Items]
Beginning Balance		0.6	$ 6.7
Additional accruals			7.3	$ 6.7
Adjustments		(0.2)
Cash payments		(0.4)	(12.6)
Non-cash settlements			(0.8)
Ending Balance			0.6	6.7
June 2016 Restructuring Plan [Member] \| Employee Severance and Benefits [Member]
Restructuring Cost And Reserve [Line Items]
Beginning Balance			6.7
Additional accruals			5.0	6.7
Cash payments			(11.7)
Ending Balance				$ 6.7
June 2016 Restructuring Plan [Member] \| Facility Consolidation and Related Charges [Member]
Restructuring Cost And Reserve [Line Items]
Beginning Balance		0.6
Additional accruals			2.3
Adjustments		(0.2)
Cash payments		$ (0.4)	(0.9)
Non-cash settlements			(0.8)
Ending Balance			$ 0.6

Share-Based Compensation - Performance Stock Units - Additional Information (Detail) - Performance stock units outstanding [Member] $ in Millions	12 Months Ended
	Jun. 29, 2019 USD ($) shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period of the underlying awards	3 years
Vesting percentage of the underlying awards	33.33%
Shares withheld to meet statutory minimum tax withholding requirements \| shares	36,332
Shares valued withheld to meet statutory minimum tax withholding requirements	$ 1.4
Requisite service period	3 years
Unrecognized share-based compensation cost	$ 2.4
Unrecognized share-based compensation, period for recognition	1 year 10 days
Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Potential payout range	0.00%
Threshold percentage of earnings per share to trigger pay out	65.00%
Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Potential payout range	200.00%
Threshold percentage of earnings per share to trigger pay out	135.00%