Synaptics (SYNA) 10-K 18 Aug 17 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Jun. 24, 2017	Aug. 11, 2017	Dec. 23, 2016
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Jun. 24, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Entity Registrant Name	SYNAPTICS INCORPORATED
Trading Symbol	SYNA
Entity Central Index Key	817,720
Current Fiscal Year End Date	--06-24
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		33,703,272
Entity Public Float			$ 1,695,807

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 24, 2017	Jun. 25, 2016
Current Assets:
Cash and cash equivalents	$ 367.8	$ 352.2
Accounts receivable, net of allowances of $2.6 and $3.7 at June 2017 and 2016, respectively	255.2	252.6
Inventories	131.4	146.4
Prepaid expenses and other current assets	37.6	28.9
Total current assets	792	780.1
Property and equipment, net	113.8	112.7
Goodwill	206.8	206.8
Acquired intangibles, net	101	160.3
Non-current other assets	53.1	40.3
Total assets	1,266.7	1,300.2
Current Liabilities:
Accounts payable	135.8	172.8
Accrued compensation	31.9	39.9
Income taxes payable	17.2	11.5
Acquisition-related liabilities	8.7	25.5
Other accrued liabilities	101.8	82.3
Current portion of long-term debt	15	18.8
Total current liabilities	310.4	350.8
Long-term debt, net of issuance costs	202	216.7
Acquisition-related liabilities		6.2
Deferred tax liabilities		9
Other long-term liabilities	14.1	12.5
Total liabilities	526.5	595.2
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, 60,579,911 and 59,532,148 shares issued, and 34,638,435 and 35,212,141 shares outstanding, at June 2017 and 2016, respectively	0.1	0.1
Additional paid-in capital	1,004.8	928.6
Treasury stock: 25,941,476 and 24,320,007 common shares at June 2017 and 2016, respectively, at cost	(980.3)	(892.3)
Accumulated other comprehensive income	1.5	3.3
Retained earnings	714.1	665.3
Total stockholders' equity	740.2	705
Liabilities and stockholders' equity	$ 1,266.7	$ 1,300.2

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 24, 2017	Jun. 25, 2016
Statement Of Financial Position [Abstract]
Allowance for doubtful accounts receivable	$ 2.6	$ 3.7
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	60,579,911	59,532,148
Common stock, shares outstanding	34,638,435	35,212,141
Common treasury shares	25,941,476	24,320,007

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Income Statement [Abstract]
Net revenue	$ 1,718.2	$ 1,666.9	$ 1,703
Cost of revenue	1,194.6	1,085.4	1,124.3
Gross margin	523.6	581.5	578.7
Operating expenses:
Research and development	292.3	311.2	293.2
Selling, general, and administrative	137.6	161.7	127.9
Acquired intangibles amortization	11.7	18.6	14.2
Impairment of acquired intangibles		6.7
Change in contingent consideration		(0.5)	(18.8)
Restructuring costs	7.3	8.6
Litigation settlement charge	10
Total operating expenses	458.9	506.3	416.5
Operating income	64.7	75.2	162.2
Interest and other income	0.7	3.1	1.6
Interest expense	(6)	(4.8)	(3.8)
Impairment recovery on investments, net	1.9	2.1	0.2
Income before provision for income taxes and equity investment loss	61.3	75.6	160.2
Provision for income taxes	12.2	3.4	49.8
Equity investment loss	(0.3)
Net income	$ 48.8	$ 72.2	$ 110.4
Net income per share:
Basic	$ 1.40	$ 1.97	$ 2.99
Diluted	$ 1.37	$ 1.91	$ 2.84
Shares used in computing net income per share:
Basic	34.8	36.6	36.9
Diluted	35.6	37.9	38.9

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 48.8	$ 72.2	$ 110.4
Other comprehensive income/(loss), net of tax:
Change in unrealized net gain/(loss) on investments	(1.5)	(2.7)	0.8
Reclassification from accumulated other comprehensive loss to interest income for accretion of non-current investments	(0.3)	(1.8)	(1.5)
Net current-period other comprehensive loss	(1.8)	(4.5)	(0.7)
Comprehensive income	$ 47	$ 67.7	$ 109.7

Consolidated Statements of Stoc

Consolidated Statements of Stockholders Equity - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income [Member]	Retained Earnings [Member]
Balance, value at Jun. 28, 2014	$ 701.2	$ 0.1	$ 740.3	$ (530.4)	$ 8.5	$ 482.7
Balance, shares at Jun. 28, 2014		55,911,513
Net income	110.4					110.4
Other comprehensive income	(0.7)				(0.7)
Issuance of common stock for share- based award compensation plans	49.1		49.1
Issuance of common stock for share-based award compensation plans, shares		2,093,631
Issuance of common stock for acquisition	21.5		21.5
Issuance of common stock for acquisition, shares		243,963
Payroll taxes for deferred stock units	(16)		(16)
Purchases of treasury stock	(121.3)			(121.3)
Tax benefit (deficiency) associated with share-based awards	4.8		4.8
Share-based compensation	44.1		44.1
Balance, value at Jun. 27, 2015	793.1	$ 0.1	843.8	(651.7)	7.8	593.1
Balance, shares at Jun. 27, 2015		58,249,107
Net income	72.2					72.2
Other comprehensive income	(4.5)				(4.5)
Issuance of common stock for share- based award compensation plans	32.4		32.4
Issuance of common stock for share-based award compensation plans, shares		1,283,041
Payroll taxes for deferred stock units	(15.6)		(15.6)
Purchases of treasury stock	(240.6)			(240.6)
Tax benefit (deficiency) associated with share-based awards	11.2		11.2
Share-based compensation	56.8		56.8
Balance, value at Jun. 25, 2016	705	$ 0.1	928.6	(892.3)	3.3	665.3
Balance, shares at Jun. 25, 2016		59,532,148
Net income	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)			(88)
Tax benefit (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	$ 0.1	$ 1,004.8	$ (980.3)	$ 1.5	$ 714.1
Balance, shares at Jun. 24, 2017		60,579,911

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Cash flows from operating activities
Net income	$ 48.8	$ 72.2	$ 110.4
Adjustments to reconcile net income to net cash provided by operating activities:
Share-based compensation costs	61.8	56.8	44.1
Depreciation and amortization	33.2	31.2	24.8
Acquired intangibles amortization	59.3	73	87.6
Accretion and remeasurement of contingent consideration liability		(0.5)	(18.8)
Deferred taxes	(17.4)	(21.1)	(25.2)
Impairment of property and equipment		3	1
Impairment of acquired intangibles		6.7
Non-cash interest	(0.3)	(1.8)	(1.5)
Amortization of debt issuance costs	1.2	1	0.8
Impairment recovery on investments, net	(1.9)	(2.1)	(0.2)
Equity investment loss	0.3
Foreign currency remeasurement (gain)/loss	(0.2)	8.2	(8)
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable, net	(2.6)	72	0.7
Inventories	15	(6.2)	(51.5)
Prepaid expenses and other current assets	(9.6)	5.8	13.5
Other assets	6.5	5.6	10.1
Accounts payable	(38.4)	(15.3)	30.2
Accrued compensation	(7.8)	3.3	2.1
Acquisition related liabilities	(16.8)	(18.2)	(1.9)
Income taxes payable	2.3	(26.1)	(7.1)
Other accrued liabilities	19.5	9.1	(7)
Net cash provided by operating activities	152.9	256.6	204.1
Cash flows from investing activities
Proceeds from sales of investments	7.5	6.6	4.9
Acquisition of businesses, net of cash acquired			(294.3)
Purchases of property and equipment	(31.4)	(28.6)	(51.9)
Purchase of intangible assets		(4.6)
Investment in direct financing lease	(17)
Proceeds from direct financing leases	17
Equity method investment	(18.4)
Net cash used in investing activities	(42.3)	(26.6)	(341.3)
Cash flows from financing activities
Payment of acquisition-related liabilities	(5.3)	(60.9)	(72.2)
Payment of debt	(18.8)	(7.6)	(3.8)
Purchases of treasury stock	(88)	(240.6)	(121.3)
Proceeds from issuance of shares	24.7	32.4	49.1
Proceeds from issuance of long-term debt			245.4
Payment of debt issuance costs	(1.2)	(0.3)	(0.4)
Excess tax benefit from share-based compensation	1.1	11.5	12.8
Payroll taxes for deferred stock and market stock units	(6.6)	(15.6)	(16)
Net cash provided by/(used in) financing activities	(94.1)	(281.1)	93.6
Effect of exchange rate changes on cash and cash equivalents	(0.9)	3.4	(3.7)
Net increase/(decrease) in cash and cash equivalents	15.6	(47.7)	(47.3)
Cash and cash equivalents at beginning of year	352.2	399.9	447.2
Cash and cash equivalents at end of year	367.8	352.2	399.9
Supplemental disclosures of cash flow information
Cash paid for interest	6	5	3.1
Cash paid for taxes	22.1	46.9	86.1
Cash refund on taxes	10.1	18	3.4
Non-cash investing and financing activities:
Property and equipment received but unpaid	$ 6	$ 3.1	8.2
Common stock issued in settlement of contingent consideration liability			$ 21.5

Organization and Summary of Sig

Organization and Summary of Significant Accounting Policies	12 Months Ended
	Jun. 24, 2017
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; and other select electronic devices, including devices in automobiles. Every solution we deliver either contains or consists of our touch- or fingerprint-based semiconductor solutions, which includes our capacitive sensing ASIC, customer-specific firmware, and software, or a driver-based semiconductor solution which includes our capacitive sensing ASIC. Our original equipment manufacturer, or OEM, customers include many of the world’s largest OEMs for smartphones and most of the world’s largest PC OEMs. 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 24, 2017, June 25, 2016 and June 27, 2015. For simplicity, the accompanying consolidated financial statements have been shown as fiscal year periods and as of the end of our fiscal year ending in June. 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 non-current investments, which are included in non-current other assets in the consolidated balance sheets, consist of ARS investments and are reported at fair value, with unrealized gains and losses excluded from earnings and shown separately as a component of accumulated other comprehensive income within stockholders’ equity. We charge other-than-temporary declines in the fair value of a debt security to earnings if the decline is due to a credit loss or if we intend to or need to sell at a loss, resulting in the establishment of a new cost basis in the debt security. We charge other-than-temporary declines in the fair value of a debt security to other comprehensive income if the decline is due to a noncredit loss. We charge other-than-temporary declines in the fair value of an equity security to earnings. We include interest earned and accretion on securities in interest income. We determine realized gains and losses on the sale of securities using the specific identification method. Our cash equivalents and investments classified as available-for-sale securities as of the end of fiscal 2017 and 2016 were as follows (in millions): 2017 Gross Amortized Unrealized Fair Cost Gains Value Reported as cash equivalents: Money market funds $ 361.7 $ — $ 361.7 Reported as non-current assets: Auction rate securities - 1.5 1.5 Total available-for-sale securities $ 361.7 $ 1.5 $ 363.2 2016 Gross Amortized Unrealized Fair Cost Gains Value Reported as cash equivalents: Money market funds $ 319.1 $ — $ 319.1 Reported as non-current assets: Auction rate securities 5.3 3.3 8.6 Total available-for-sale securities $ 324.4 $ 3.3 $ 327.7 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 2017 and 2016 were as follows (in millions): 2017 2016 Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Assets: Money market $ 361.7 $ — $ — $ 319.1 $ — $ — Auction rate securities — — 1.5 — — 8.6 Total available-for-sale securities $ 361.7 $ — $ 1.5 $ 319.1 $ — $ 8.6 The valuation of our auction rate securities is discussed in Note 3. In connection with the acquisition of Validity Sensors, Inc., or Validity, we entered into a contingent consideration arrangement. As of June 30, 2017, the balance of $8.7 million represents a contractual liability which is no longer subject to valuation as the carrying amount approximates the fair value. The balance represents amounts we have not paid and have retained, subject to resolution of matters related to the Amkor Technology legal dispute (see Legal Proceedings under Note 8). Changes in fair value of our Level 3 financial assets for fiscal 2017 and 2016 were as follows (in millions): 2017 2016 Beginning balance $ 8.6 $ 15.8 Net unrealized loss (1.5 ) (2.7 ) Impairment recovery on redeemed investments 1.9 2.1 Redemptions (7.5 ) (6.6 ) Ending balance $ 1.5 $ 8.6 Changes in fair value of our Level 3 financial liabilities for fiscal 2016 were as follows (in millions): 2016 Beginning balance $ 44.2 Cash settlement of contingent consideration liability (18.2 ) Issuance of common stock in settlement of liability — Accretion and remeasurement (0.5 ) Transfer out (25.5 ) Ending balance $ — During fiscal 2016 we transferred $25.5 million of contingent consideration liability out of our Level 3 liabilities, as the underlying contingencies were resolved and it became a contractual liability as of the end of fiscal 2016. The carrying value of $25.5 million approximated fair value, and was included in current acquisition-related liabilities as of the end of fiscal 2016. During fiscal 2017 we paid $16.8 million of this liability and $8.7 million is included in current acquisition-related liabilities as of the end of fiscal 2017. There were no transfers in or out of our Level 1 or 2 assets or liabilities during fiscal 2017 or 2016. 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. Included within our investment portfolio are investments in ARS investments, which met our investment guidelines at the time of investment. Our ARS investments are currently not liquid as a result of continued auction failures. 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 2017 and 2016: 2017 2016 Customer A 17% 12% Customer B 15% 10% Customer C 13% * Customer D 10% 13% Customer E * 14% Customer F * 11% * 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 extra lead time. In order to mitigate any adverse impacts from a disruption of supply, we strive to maintain an adequate supply of critical single-sourced components. Revenue Recognition We recognize revenue from product sales when there is persuasive evidence that an arrangement exists, delivery has occurred and title has transferred, the price is fixed or determinable, and collection is reasonably assured. We accrue for estimated sales returns, incentives and other allowances at the time we recognize revenue. Our products contain embedded firmware and software, which together with, or consisting of, our ASIC chip, deliver the essential functionality of our products and, as such, software revenue recognition guidance is not applicable. Our sales to distributors are made under agreements that generally do not provide for price adjustments after purchase and provide for only limited return rights under product warranty. Revenue on these sales is recognized in the same manner as sales to our non-distributor customers. When sales rebates and price allowances are applicable they are estimated and recorded in the period the related revenue is recognized. 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; 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 market (estimated net realizable value) as of the end of fiscal 2017 and 2016 and consisted of the following (in millions): 2017 2016 Raw materials $ 94.7 $ 59.2 Finished goods 36.7 87.2 $ 131.4 $ 146.4 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. Our investment in OXi is included in non-current other assets on our consolidated balance sheet. We determined the equity method of accounting applies to our investment as we have significant influence over OXi’s operating and financial policies. We will record our portion of OXi’s net income on a one quarter lag due to the timing of the availability of OXi’s financial records, therefore, as of June 30, 2017, we did not record our portion of OXi’s net income or loss for the April 2017 through June 2017 period. In addition, we will amortize intangible assets that we recorded under the equity method of accounting, and such amortization is included in Equity investment loss on our consolidated statements of income. As of June 30, 2017, we did not have any related party transactions with 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 $0.7 million and $5.8 million in fiscal 2017 and fiscal 2016, respectively, and a net gain of $14.7 million in fiscal 2015. Gains and losses resulting from foreign currency transactions are included in selling, general, and administrative expenses in the consolidated statements of income. We also enter into foreign currency contracts to manage exposure related to certain foreign currency obligations. The foreign currency contracts are not designated as hedging instruments and, accordingly, are not subject to hedge accounting. In fiscal year 2015, we entered into foreign currency forward contracts to purchase Japanese yen, using U.S. dollars. As of June 30, 2017, and 2016 we had no outstanding foreign currency forward contracts. In fiscal 2017 we had no active contracts, in fiscal 2016 we recognized net realized gains of $4.8 million and in fiscal 2015 we recognized net unrealized losses of $1.3 million on foreign currency forward contracts, which are recorded in selling, general, and administrative expenses in the consolidated statements of income. Goodwill Goodwill represents the excess of the purchase price over the fair value of net tangible and identifiable intangible assets acquired. There were no changes in our goodwill balance in fiscal 2017 and 2016. We have allocated our goodwill to a single company-wide reporting unit. We perform a qualitative assessment of the goodwill in the fourth quarter of each fiscal year. 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. We concluded that the fair value of the single company-wide reporting unit exceeded its carrying amount, therefore, there is no need for impairment. No goodwill impairment was recognized for fiscal 2017, 2016, and 2015. 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. During fiscal 2016, we recorded a $6.7 million impairment charge for an acquired intangible asset related to ThinTouch developed technology, which we determined is probable not to be recoverable, based on revenue forecasts. This intangible asset has been written down to zero. During fiscal 2017 and 2015, we did not have an impairment charge. Other Accrued Liabilities As of the end of fiscal 2017 and 2016, other accrued liabilities consisted of the following (in millions): 2017 2016 Customer obligations $ 34.8 $ 34.8 Inventory obligations 41.8 24.0 Warranty 4.4 3.5 Other 20.8 20.0 $ 101.8 $ 82.3 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 is the chief executive officer who evaluates financial performance and allocates 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 expected life for our options was previously estimated based on historical trends since our initial public offering. In fiscal 2011, we began to grant options with a contractual life of seven years rather than 10 years, and we began using the simplified method to establish the expected life as we did not have any history of options with seven-year lives. Our outstanding options have vesting periods of three or four years, depending on when they were granted and we continue to use 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. Further, we estimate forfeitures for share-based awards that are not expected to vest. We charge estimated fair value less estimated 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 option and deferred stock unit, or DSU, awards, three years for our market stock unit, or MSU, awards, and up to two years for 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, generally three years, adjusted for estimated forfeitures for each vesting tranche of the award. 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 consider the operating earnings of our foreign subsidiaries to be indefinitely invested outside the United States. Accordingly, no provision has been made for the U.S. federal, state, or foreign taxes that may result from future remittances of undistributed earnings of our foreign subsidiaries. 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.

Net Income Per Share

Net Income Per Share	12 Months Ended
	Jun. 24, 2017
Earnings Per Share [Abstract]
Net Income Per Share	2. Net Income Per Share The computation of basic and diluted net income per share for fiscal 2017, 2016, and 2015 was as follows (in millions, except per share amounts): 2017 2016 2015 Numerator: Net income $ 48.8 $ 72.2 $ 110.4 Denominator: Shares, basic 34.8 36.6 36.9 Effect of dilutive share-based awards 0.8 1.3 2.0 Shares, diluted 35.6 37.9 38.9 Net income per share: Basic $ 1.40 $ 1.97 $ 2.99 Diluted $ 1.37 $ 1.91 $ 2.84 Diluted net income per share does not include the effect of potential common shares related to certain share-based awards for fiscal 2017, 2016, and 2015 as follows (in millions): 2017 2016 2015 Share-based awards 1.4 0.7 0.3 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 adjusted for the hypothetical tax benefit or deficiency creditable or chargeable, respectively, to additional paid-in capital, 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, and MSUs.

Auction Rate Securities

Auction Rate Securities	12 Months Ended
	Jun. 24, 2017
Text Block [Abstract]
Auction Rate Securities	3. Auction Rate Securities Our ARS investments, which are included in non-current other assets, have failed to settle in auctions beginning in 2007. These investments are not liquid, and in the event we need to access these funds, we will not be able to do so without a loss of principal, unless redeemed by the issuers or a future auction on these investments is successful. During our fiscal years 2017, 2016 and 2015, $7.5 million, $6.6 million and $4.9 million, respectively, of our ARS investments were redeemed. Our failed ARS investments were compared to other observable market data or securities with similar characteristics. Our estimate of the fair value of our ARS investments fluctuates from period to period depending on future market conditions. We have ARS investments with a fair value of $1.5 million with no maturity date, which are below investment grade and have a total par value of $5.0 million. The type of ARS investments we held as of the end of fiscal 2017, including the original cost basis, other-than-temporary impairment included in retained earnings, new cost basis, unrealized gain, and fair value consisted of the following (in millions): Original Cost Basis Other-than- temporary Impairment in Retained Earnings New Cost Basis Unrealized Gain Fair Value Preferred stock $ 5.0 $ (5.0 ) $ — $ 1.5 $ 1.5 The various types of ARS investments we held as of the end of fiscal 2016, including the original cost basis, other-than-temporary impairment included in retained earnings, new cost basis, unrealized gain, and fair value consisted of the following (in millions): Original Cost Basis Other-than- temporary Impairment in Retained Earnings New Cost Basis Unrealized Gain Fair Value Credit linked notes $ 7.5 $ (2.2 ) (1) $ 5.3 $ 1.8 $ 7.1 Preferred stock 5.0 (5.0 ) — 1.5 1.5 Total ARS Investments $ 12.5 $ (7.2 ) $ 5.3 $ 3.3 $ 8.6 (1) Other-than-temporary impairment in retained earnings is partially offset by cumulative accretion of $4.4 million on non-current other assets. Accretion is reclassified from accumulated other comprehensive income and recorded in the consolidated statements of income as interest income. We have accounted for our ARS investments as non-current as we are not able to reasonably determine when the ARS markets will recover or be restructured. Based on our ability to access our cash and cash equivalents, our expected operating cash flows, and our other sources of cash, we do not intend to sell our ARS investments and it is not more likely than not that we will be required to sell our ARS investments before the recovery of the amortized cost basis.

Property and Equipment

Property and Equipment	12 Months Ended
	Jun. 24, 2017
Property Plant And Equipment [Abstract]
Property and Equipment	4. Property and Equipment Property and equipment as of the end of fiscal 2017 and 2016 consisted of the following (in millions): Life 2017 2016 Land — $ 13.3 $ 13.3 Building and building improvements 35 years 47.9 44.5 Computer equipment 3 - 5 years 29.7 25.3 Manufacturing equipment 1 75.7 65.8 Furniture, fixtures, and leasehold improvements 3 - 10 years 21.5 21.1 Capitalized software 3 - 7 years 32.5 30.0 220.6 200.0 Accumulated depreciation and amortization (106.8 ) (87.3 ) Property and equipment, net $ 113.8 $ 112.7 In fiscal 2017 and 2016, there was $10.8 million and $10.9 million, respectively, of property and equipment retired which was fully amortized.

Acquisitions

Acquisitions	12 Months Ended
	Jun. 24, 2017
Business Combinations [Abstract]
Acquisitions	5. Acquisitions Validity On November 7, 2013, or the Acquisition Date, we acquired 100% of the outstanding common and preferred shares and voting interest of a privately held company, Validity Sensors, Inc., or Validity. As of June 30, 2016, the remaining liability for contingent consideration of $8.7 million represents amounts we have not paid and have retained, subject to resolution of matters related to the Amkor Technology legal settlement (see Legal Proceedings Renesas SP Drivers On June 11, 2014, we entered into a stock purchase agreement to acquire all of the outstanding stock of Renesas SP Drivers, Inc., or RSP, a leading provider of small- and medium-sized display driver integrated circuits for smartphones and tablets, or the RSP Acquisition. Effective as of October 1, 2014, or the Closing Date, we completed the RSP Acquisition by acquiring 100% of the outstanding capital stock of RSP for an initial purchase price of approximately ¥50.6 billion (or approximately $463 million), with Japanese yen converted into U.S. dollars at the Closing Date conversion rate of 109.4 Japanese yen to one U.S. dollar. The purchase price at the Closing Date was paid entirely in cash, with ¥7.25 billion (or approximately $66 million) held back until the date that is 18 months after the Closing Date to address any post-closing adjustments or claims, or the Indemnification Holdback, and ¥5.25 billion (or approximately $48 million) held back in respect of a potential post-closing working capital, cash balance, indebtedness and transaction expenses adjustments, or the Working Capital Holdback. Subsequent to the Closing Date, we determined that $4.8 million of additional purchase consideration was due to the sellers pursuant to the requirements of the Working Capital Holdback and have adjusted the purchase price to $468 million. The Working Capital Holdback as adjusted for additional purchase consideration was settled in the three months ended March 31, 2015, for a total of ¥5.78 billion (or $48.6 million). The majority of the Indemnification Holdback was settled in fiscal 2016 and the remainder was settled in fiscal 2017 after resolution of the IIX legal complaint (see Legal Proceedings

Acquired Intangibles

Acquired Intangibles	12 Months Ended
	Jun. 24, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
Acquired Intangibles	6. 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 2017 and 2016 (in millions): Weighted Average Life in Years 2017 2016 Display driver technology 5.3 $ 164.0 $ 164.0 Fingerprint authentication technology 4.3 63.5 75.6 Customer relationships 2.8 48.4 48.4 Licensed technology and other 5.0 1.3 1.3 Patents 7.7 4.8 4.8 Supplier arrangement - 22.0 Acquired intangibles, gross 4.3 282.0 316.1 Accumulated amortization (181.0 ) (155.8 ) Acquired intangibles, net $ 101.0 $ 160.3 In fiscal 2017, there was $12.1 million of Fingerprint developed technology and $22.0 million Supplier arrangement 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 $59.3 million in fiscal 2017 and $73.0 million in fiscal 2016. This amortization expense was included in our consolidated statements of income as acquired intangibles amortization and cost of revenue. The following table presents expected annual aggregate amortization expense in future fiscal years (in millions): 2018 $ 48.6 2019 34.2 2020 10.6 2021 3.5 2022 3.5 Thereafter 0.6 Future amortization $ 101.0

Debt

Debt	12 Months Ended
	Jun. 24, 2017
Debt Disclosure [Abstract]
Debt	7. Debt On September 30, 2014, we entered into the Credit Agreement, with the lenders that are party thereto, or the Lenders, and Wells Fargo Bank, National Association, as Administrative Agent for the Lenders. On October 20, 2015, we entered into a Commitment Increase Agreement and First Amendment to Credit Agreement, or the First Amendment, with the Administrative Agent and each of the lenders party thereto, which amends the Credit Agreement, among us, the Lenders and the Administrative Agent. On April 6, 2017, we entered into a Commitment Increase Agreement and Second Amendment, or the Incremental Amendment, to our existing Credit Agreement. Pursuant to the First Amendment, we exercised our right under the Credit Agreement to request a $100 million increase to the aggregate revolving credit commitment thereunder, for total aggregate revolving credit commitments of $250 million, and the Lenders under the Credit Agreement agreed to provide such increased revolving credit commitments pursuant to the terms of the First Amendment. Pursuant to the Incremental Amendment, we increased the maximum permitted principal amount of incremental loan commitments to $200 million, and utilized such increased amount to obtain additional revolving commitments under the Credit Agreement from each of the existing lenders in the aggregate principal amount of $200 million, such that after giving effect to the Incremental Amendment, the aggregate amount of the revolving commitments under the Credit Agreement became $450 million. The Credit Agreement provides for, among other things, (i) a revolving credit facility of up to $150 million, subsequently amended and increased to $450 million, which includes a $20 million sublimit for letters of credit and a $20 million sublimit for swingline loans, and (ii) a term loan facility in an amount of $150 million. Under the terms of the Credit Agreement, we may, subject to the satisfaction of certain conditions, request increases in the revolving credit facility commitments and additional term loan commitments in an aggregate principal amount of up to $200 million to the extent existing or new lenders agree to provide such increased or additional commitments, as applicable. We borrowed $150 million under the term loan facility and $100 million under the revolving credit facility to finance a portion of the RSP Acquisition purchase price. Debt issuance costs were approximately $5.0 million, which are being amortized over 60 months. Our obligations under the Credit 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 Credit 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 and term loans bear 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 zero to 100 basis points for Base Rate loans and 100 basis points to 200 basis points for LIBOR loans. During fiscal 2017, the interest rates on our borrowings ranged from approximately 1.85% to 2.86%. The term loan facility requires repayment over five years with nineteen quarterly principal payments which began in the three months ended March 31, 2015. Each of the first four quarterly principal payments were $1.9 million, each of the following quarterly principal payments are $3.8 million, and the final principal payment of $90.0 million is due on September 30, 2019. The revolving credit facility requires payment in full on September 30, 2019. We are also required to pay a commitment fee for any unused portion of the revolving credit facility, which ranges from 0.25% to 0.45% per annum. Interest on the term loan facility and revolving credit facility is payable quarterly. As of June 30, 2017, the outstanding balance of the debt owed under the Credit Agreement was $220.0 million. Under the Credit Agreement, there are various restrictive covenants, including three 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 2.50 to 1.0 provided that for the four fiscal quarters ending after the date of a material acquisition, such maximum leverage ratio shall be adjusted to 3.0 to 1.0, and thereafter, shall not be more than 2.75 to 1.0. 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 2.25 to 1.0. As of the end of fiscal 2017, we were in compliance with the restrictive covenants. The Incremental Amendment increased the maximum permitted leverage ratio during the last three years of the agreement from 2.0:1.0 to 2.50:1.00, with a further increase to 3.00:1.00 for the first four fiscal quarters ending after any acquisition having an aggregate consideration exceeding $150.0 million and stepping down to 2.75:1.00 thereafter, and modified the negative covenants to permit up to $50.0 million per fiscal quarter of accounts receivable financings. On June 26, 2017, subsequent to the end of our fiscal 2017, we issued convertible debt and used $220.0 million of the proceeds to pay off the balance of our term loan and our revolving credit facility debt as of June 26, 2017, the term loan was closed and we continued to have the revolving credit facility available. In July 2017, we made an election to reduce the commitment under the revolving credit facility to $250.0 million. See Subsequent Events under Note 15.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Jun. 24, 2017
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	8. Commitments and Contingencies Leases We maintain office facilities in various locations under operating leases with expiration dates from fiscal 2018 to fiscal 2022, 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, the United States, and Vietnam. We recognized rent expense on a straight-line basis of $10.6 million, $9.2 million, and $7.9 million for fiscal 2017, 2016, and 2015, 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 2018 $ 7.9 2019 2.9 2020 0.8 2021 0.4 2022 0.1 Thereafter - Total minimum operating lease payments $ 12.1 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 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. Legal Proceedings In October 2015, Amkor Technology, or Amkor, filed a complaint against us alleging infringement of intellectual property rights and various other claims. In November 2015, we filed an indemnification claim against the former stockholders and option holders of Validity to secure our rights under the Agreement and Plan of Reorganization between us and Validity (the “Validity Agreement”). Pursuant to the Validity Agreement, we believe we can offset costs, damages and settlements incurred in connection with our defense and resolution of the complaint with Amkor against the contingent consideration earnout balance of $8.7 million and have classified the reserve balance as a current acquisition-related liability in our consolidated balance sheet. In April 2017, we agreed to settle this case with Amkor on undisclosed terms that include each party licensing and assigning certain intellectual property rights, and cash payments. Settlement costs incurred in connection with this litigation have been recorded in our consolidated financial statements and all but an immaterial amount was paid during fiscal 2017. The indemnification claim against the former stockholders and option holders of Validity remains outstanding. In September 2015, IIX Inc., or IIX, filed a complaint against us demanding payment of certain fees and costs plus interest allegedly due to IIX under a memorandum of understanding, or MOU, entered into between IIX and RSP, as well as litigation costs. In September 2015, we tendered a claim for indemnification from Renesas Electronics Corporation, or Renesas, on the basis that the IIX claim arises from a breach of Renesas’ obligations under the Stock Purchase Agreement that we executed with Renesas, among others, in June 2014. Accordingly, we previously retained ¥648 million of the indemnification holdback liability. In May 2017, we entered into settlement agreements with IIX and Renesas. In June 2017, we made a payment to IIX as part of the settlement and recovered a portion of the settlement and legal costs from the indemnification holdback liability. The balance of approximately $5.4 million indemnification holdback liability was remitted to Renesas in June 2017.

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Jun. 24, 2017
Equity [Abstract]
Stockholders' Equity	9. 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 2017, 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 2017 were as follows: Stock options outstanding 2,490,168 Deferred stock units outstanding 1,320,798 Market stock units outstanding 158,596 Awards available for grant under all share-based compensation plans 2,947,069 Reserved for future issuance 6,916,631 Treasury Stock Our cumulative authorization for our common stock repurchase program is $1.15 billion, as of the end of fiscal 2017, expiring in July 2018. 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 2017, we had $169.7 million remaining under our common stock repurchase program.

Share-Based Compensation

Share-Based Compensation	12 Months Ended
	Jun. 24, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share-Based Compensation	10. 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 Amended and Restated 2001 Incentive Compensation Plan, or our 2001 Plan; our Amended and Restated 2010 Incentive Compensation Plan, or 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 2017, were as follows: Awards 2010 Available 2010 Employee Under All Incentive Stock Share-Based Compensation Purchase Award Plans Plan Plan Balance at June 2016 1,458,301 1,128,167 330,134 Additional shares authorized 2,952,121 2,600,000 352,121 Stock options granted (356,107 ) (356,107 ) — Deferred stock units granted (922,784 ) (922,784 ) — Market stock units granted (105,800 ) (105,800 ) — Market stock units performance adjustment 55,739 55,739 — Purchases under employee stock purchase plan (302,085 ) — (302,085 ) Forfeited 355,855 355,855 — Fungible Shares Ratio Adjustment (188,171 ) (188,171 ) — Plan shares expired — — — Balance at June 2017 2,947,069 2,566,899 380,170 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. Share-based compensation and the related tax benefit recognized in our consolidated statements of income for fiscal 2017, 2016, and 2015 were as follows (in millions): 2017 2016 2015 Cost of revenue $ 2.2 $ 1.8 $ 1.4 Research and development 33.1 30.6 24.5 Selling, general, and administrative 26.5 24.4 18.2 Total $ 61.8 $ 56.8 $ 44.1 Income tax benefit on share-based compensation $ 16.1 $ 14.7 $ 12.5 We recognize a tax benefit upon expensing certain share-based awards associated with our share-based compensation plans, including nonqualified stock options, DSUs, and MSUs, 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 additional paid-in capital is not recognized until the deduction reduces taxes payable. Tax deficiency associated with a tax shortfall is debited to additional paid-in capital when incurred. Historically, we have issued new shares in connection with our share-based compensation plans, however, treasury shares were also available for issuance as of the end of fiscal 2017. Any additional shares repurchased under our common stock repurchase program would 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 2017 and balances as of the end of fiscal 2017 were as follows: Stock Weighted Option Average Intrinsic Awards Exercise Value Outstanding Price (In millions) Balance at June 2016 2,711,542 $ 46.69 Granted 356,107 53.24 Exercised (404,738 ) 26.48 Forfeited (105,827 ) 70.81 Expired (66,916 ) 72.57 Balance at June 2017 2,490,168 49.20 $ 41.1 Exercisable at June 2017 1,911,046 44.28 $ 39.1 The aggregate intrinsic value was determined using the closing price of our common stock on the last trading day of fiscal 2017, or June 23, 2017, of $59.99 and excludes the impact of options that were not in-the-money. Approximately 51% of the stock option awards outstanding were vested and in-the-money as of the end of fiscal 2017. At the end of fiscal 2017, we estimated that we have 2.4 million fully vested options and options expected to vest with an aggregate intrinsic value of $40.9 million, having a weighted average exercise price of $48.89 and a weighted average remaining contractual term of 3.44 years. The weighted average remaining contractual term for the options exercisable is approximately 2.79 years. Cash received and the aggregate intrinsic value of stock options exercised for fiscal 2017, 2016, and 2015 were as follows (in millions): 2017 2016 2015 Cash received $ 10.7 $ 16.6 $ 36.2 Aggregate intrinsic value $ 12.3 $ 29.7 $ 69.9 The fair value of each award granted under our share-based compensation plans for fiscal 2017, 2016, and 2015 was estimated at the date of grant using the Black-Scholes option pricing model, assuming no expected dividends and the following range of assumptions: 2017 2016 2015 Expected volatility 45.2% - 48.3% 40.4% - 38.7% - Expected life in years 3.8 - 4.6 3.8 3.8 Risk-free interest rate 1.03% - 1.94% 1.22% - 1.72% 1.18% - 1.80% Fair value per award $ 21.08 $ 28.30 $ 27.19 The unrecognized share-based compensation costs for stock options granted under our various plans were approximately $14.1 million as of the end of fiscal 2017, to be recognized over a weighted average period of approximately 1.96 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 2017, and the balance and aggregate intrinsic value of DSUs as of the end of fiscal 2017 were as follows: Aggregate Weighted Intrinsic Average DSU Awards Value Grant Date Outstanding (in millions) Fair Value Balance at June 30, 2016 1,005,981 $ 77.93 Granted 922,784 62.62 Delivered (452,131 ) 73.36 Forfeited (155,836 ) 75.14 Balance at June 30, 2017 1,320,798 $ 79.2 69.14 Of the shares delivered, 116,760 shares valued at $6.3 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 2017, or June 23, 2017, of $59.99. The unrecognized share-based compensation cost for DSUs granted under our 2010 Plan was approximately $78.1 million as of the end of fiscal 2017, which will be recognized over a weighted average period of approximately 2.09 years. The aggregate market value of DSUs delivered in fiscal 2017, 2016, and 2015 was $24.3 million, $26.7 million, and $23.8 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, 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 Philadelphia Semiconductor Index, or SOX Index. 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 SOX Index using the following formula: (100% + ([Synaptics TSR—SOX Index TSR] x 2)) Beginning with the MSU grants in fiscal 2015, 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, which will then be reduced by tranche one and tranche two stock issuances. 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 minimum 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 2017, and the balance and aggregate intrinsic value of MSUs as of the end of fiscal 2017 were as follows: Aggregate Weighted Intrinsic Average MSU Awards Value Grant Date Outstanding (in millions) Fair Value Balance at June 30, 2016 146,150 $ 97.54 Granted 105,800 67.51 Performance adjustment (55,739 ) — Delivered (10,339 ) 60.62 Forfeited (27,276 ) 91.88 Balance at June 30, 2017 158,596 $ 9.5 82.88 As a result of the Synaptics TSR underperforming the SOX Index TSR by 27 percentage points, we delivered 45% of the targeted shares underlying the November 2013 MSU grants, or 10,339 additional shares. Of the shares delivered, 4,770 shares valued at $0.2 million were withheld to meet statutory minimum tax withholding requirements. As a result of the Synaptics TSR underperforming the SOX Index TSR by 54 percentage points, we did not deliver any of the targeted shares underlying the October 2014 MSU grants. As a result of the Synaptics TSR underperforming the SOX Index TSR by 50 percentage points, we did not deliver any of the targeted shares underlying the October 2015 MSU grants. 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 2017, or June 23, 2017, of $59.99. The fair value of each MSU granted from our plans for fiscal 2017, 2016, and 2015 was estimated at the date of grant using the Monte Carlo simulation model, assuming no expected dividends and the following assumptions: 2017 2016 2015 Expected volatility of company 52.54 % 45.57 % 43.65 % Expected volatility of SOX index 21.23 % 19.65 % 20.60 % Correlation coefficient 0.45 0.42 0.43 Expected life in years 2.92 2.94 2.93 Risk-free interest rate 1.01 % 0.92 % 0.79 % Fair value per award $ 67.51 $ 126.74 $ 66.48 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 $10.0 million as of the end of fiscal 2017, which will be recognized over a weighted average period of approximately 1.0 years. Of the shares delivered, 4,770 shares valued at $0.2 million were withheld to meet statutory minimum tax withholding requirements. 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 2017, 2016, and 2015 were as follows (in millions, except shares purchased and weighted average purchase price): 2017 2016 2015 Shares purchased 302,085 302,781 367,646 Weighted average purchase price $ 46.74 $ 52.42 $ 35.11 Cash received $ 14.1 $ 15.8 $ 12.9 Aggregate intrinsic value $ 2.7 $ 7.0 $ 13.7 The fair value of each award granted under our 2010 ESPP for fiscal 2017, 2016, and 2015 was estimated using the Black-Scholes option pricing model, assuming no expected dividends and the following range of assumptions: 2017 2016 2015 Expected volatility 38.4 - 54.9% 37.4% - 40.6% 36.8% - 47.9% Expected life in years 0.5 - 2.0 0.5 - 1.0 0.5 - 2.0 Risk-free interest rate 0.62% - 1.20% 0.33% - 0.54% 0.07% - 0.54% Fair value per award $ 20.44 $ 24.52 $ 21.23 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; and 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 2017 were approximately $9.4 million that will be amortized over the next 16 months.

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Jun. 24, 2017
Compensation And Retirement Disclosure [Abstract]
Employee Benefit Plans	11. 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 $18,000, or $24,000 for employees who are 50 years or older. In fiscal 2017, 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 $2.3 million, $2.5 million, and $2.3 million in fiscal 2017, 2016, and 2015, respectively.

Income Taxes

Income Taxes	12 Months Ended
	Jun. 24, 2017
Income Tax Disclosure [Abstract]
Income Taxes	12. Income Taxes Income before provision for income taxes for fiscal 2017, 2016, and 2015 consisted of the following (in millions): 2017 2016 2015 United States $ (10.1 ) $ 12.3 $ 13.4 Foreign 71.4 63.3 146.8 Income before provision for income taxes $ 61.3 $ 75.6 $ 160.2 The provision for income taxes for fiscal 2017, 2016, and 2015 consisted of the following (in millions): 2017 2016 2015 Current tax expense Federal $ 9.6 $ 12.1 $ 12.0 Foreign 25.5 12.4 63.0 35.1 24.5 75.0 Deferred tax benefit Federal (10.6 ) (7.5 ) (3.7 ) Foreign (12.3 ) (13.6 ) (21.5 ) (22.9 ) (21.1 ) (25.2 ) Provision for income taxes $ 12.2 $ 3.4 $ 49.8 The provision for income taxes differs from the federal statutory rate for fiscal 2017, 2016, and 2015 as follows (in millions): 2017 2016 2015 Provision at U.S. federal statutory rate $ 21.5 $ 26.6 $ 56.1 Qualified stock options 5.5 5.1 2.7 Business credits (3.6 ) (10.3 ) (4.7 ) Foreign tax differential (13.2 ) (22.4 ) (4.3 ) Non-deductible portion of contingent consideration 0.9 0.9 (4.7 ) Change in valuation allowance (0.8 ) (1.4 ) (0.5 ) Nondeductible amortization 1.6 4.4 2.7 Other differences 0.3 0.5 2.5 Provision for income taxes $ 12.2 $ 3.4 $ 49.8 Net deferred tax assets as of the end of fiscal 2017 and 2016 consisted of the following (in millions): 2017 2016 Non-current deferred tax assets $ 23.1 $ 14.7 Non-current deferred tax liabilities - (9.0 ) Net deferred tax assets $ 23.1 $ 5.7 Non-current deferred tax assets and non-current deferred tax liabilities are included in other assets and other liabilities, respectively, in the accompanying consolidated balance sheets. Significant components of our deferred tax assets (liabilities) as of the end of fiscal 2017 and 2016 consisted of the following (in millions): 2017 2016 Deferred tax assets: Investment writedowns $ 1.8 $ 2.5 Inventory writedowns 7.4 6.5 Property and equipment 3.0 0.8 Accrued compensation 0.2 2.5 Deferred compensation 1.9 1.7 Share-based compensation 15.6 12.6 Business credit carryforward 19.2 16.2 Net operating loss carryforward 0.3 2.5 Other accruals 2.0 2.4 51.4 47.7 Valuation allowance (15.8 ) (14.1 ) 35.6 33.6 Deferred tax liabilities: Acquisition intangibles (9.2 ) (22.9 ) Interest (3.3 ) (5.0 ) (12.5 ) (27.9 ) Net deferred tax assets $ 23.1 $ 5.7 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 2017, a valuation allowance of $15.8 million is maintained to reduce deferred tax assets to levels that we believe are more likely than not to be realized through future taxable income. The net change in the valuation allowance during fiscal 2017 was an increase of $1.7 million. Undistributed earnings of our foreign subsidiaries were approximately $699.5 million as of the end of fiscal 2017 and are considered to be indefinitely reinvested overseas; accordingly, no U.S. income taxes have been provided for these earnings. The potential deferred tax liability associated with undistributed earnings of our foreign subsidiaries was approximately $138.3 million as of the end of fiscal 2017. As of the end of fiscal 2017, we had federal and California net operating loss carryforwards of approximately $0.3 million and $33.2 million, respectively. The California net operating loss will begin to expire in fiscal 2020, if not utilized. All of the California net operating loss carryforwards were attributable to share-based award deductions and any benefit of these net operating losses will be recorded directly to additional paid-in capital when realized. 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 $33.6 million and $29.8 million of federal and state research tax credit carryforwards, respectively, as of the end of fiscal 2017. The benefit of $32.2 million of these credits will be recorded directly to additional paid-in capital when realized. The federal research tax credit carryforward will begin to expire in 2032 and the state research tax credit can be carried forward indefinitely. We also had $1.6 million of federal alternative minimum tax credit carryforward available to offset future federal tax liabilities with no expiration, which will be recorded directly to additional paid-in capital when realized. The total liability for gross unrecognized tax benefits related to uncertain tax positions, included in other liabilities in our consolidated balance sheets, increased by $1.8 million from $13.4 million in fiscal 2016 to $15.2 million in fiscal 2017. Of this amount, $8.8 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 2017, 2016, and 2015 consisted of the following (in millions): 2017 2016 2015 Beginning balance $ 13.4 $ 11.6 $ 10.2 Increase in unrecognized tax benefits related to current year tax positions 2.5 1.6 2.3 Increase in unrecognized tax benefits related to prior year tax positions 0.1 1.1 0.3 Decrease due to statute expiration (0.8 ) (0.9 ) (1.2 ) Ending Balance $ 15.2 $ 13.4 $ 11.6 Accrued interest and penalties decreased by $0.2 million, increased by $0.3 million, and increased by $0.2 million representing income tax expense or benefit, in fiscal 2017, 2016, and 2015, respectively. Accrued interest and penalties was $1.2 million and $1.4 million as of June 30, 2017 and 2016, respectively. 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 $0.9 million to an increase of $5.8 million. In July 2015, the U.S. Tax Court issued an opinion in Altera Corp. v. Commissioner related to a treasury regulation addressing the treatment of stock-based compensation in a cost-sharing arrangement with a related party. The U.S. Department of the Treasury has not withdrawn the requirement in its regulations related to the treatment of stock-based compensation. The Commissioner filed an appeal to the Ninth Circuit Court of Appeals in February 2016. While we determined no adjustment to our financial statements is required 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 2010 onward, we remain subject to examination by one or more of these jurisdictions. We are currently under an income tax examination by the IRS for fiscal years 2014 and 2015, which is in the early stages. No issues have been raised during the examination so far.

Segment, Customers, and Geograp

Segment, Customers, and Geographic Information	12 Months Ended
	Jun. 24, 2017
Segment Reporting [Abstract]
Segment, Customers, and Geographic Information	13. 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 two broad product categories: the mobile product market and the personal computing, or PC, product market. Net revenue within geographic areas based on our customers’ locations for fiscal 2017, 2016, and 2015, consisted of the following (in millions): 2017 2016 2015 China $ 844.8 $ 518.7 $ 504.2 Japan 426.5 651.0 698.5 United States 231.4 249.1 223.0 South Korea 123.8 182.5 142.1 Taiwan 66.4 61.1 127.2 Other 25.3 4.5 8.0 $ 1,718.2 $ 1,666.9 $ 1,703.0 Net revenue from external customers for each group of similar products for fiscal 2017, 2016, and 2015 consisted of the following (in millions): 2017 2016 2015 Mobile product applications $ 1,489.0 $ 1,459.5 $ 1,442.1 PC product applications 229.2 207.4 260.9 $ 1,718.2 $ 1,666.9 $ 1,703.0 Long-lived assets within geographic areas as of the end of fiscal 2017 and 2016 consisted of the following (in millions): 2017 2016 United States $ 159.4 $ 174.8 Asia/Pacific 262.1 305.0 $ 421.5 $ 479.8 Our goodwill of $206.8 million has been allocated to a company-wide reporting unit. Major customers’ revenue as a percentage of total net revenue for fiscal 2017, 2016, and 2015 were as follows: 2017 2016 2015 Customer A 24% 20% 16% Customer B 19% 21% 18% Customer C 10% * * Customer D * 15% 11% Customer E * * 11% * Less than 10%

Restructuring Activities

Restructuring Activities	12 Months Ended
	Jun. 24, 2017
Restructuring And Related Activities [Abstract]
Restructuring Activities	14. Restructuring Activities In June 2016, our management approved, 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. The total charges were $11.7 million for severance costs and $2.3 million for lease cancellation and related charges. The restructuring charges are complete as of June 30, 2017. The restructuring liability activities during fiscal 2017 and 2016 were as follows (in 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 In the first quarter of fiscal 2016, we recorded $1.9 million of restructuring costs in our consolidated statements of income. The costs included severance costs related to restructuring of the operations related to our acquisition of RSP. These activities were concluded in fiscal 2016.

Subsequent Events

Subsequent Events	12 Months Ended
	Jun. 24, 2017
Subsequent Events [Abstract]
Subsequent Events	15 . Subsequent Events Acquisitions Conexant On June 11, 2017, we entered into a stock 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 (the “Conexant presence in the smart home market and increase opportunities to drive increased revenue. Effective as of July 25, 2017, or the Closing Date, we completed the Conexant Acquisition of 100% of the outstanding capital stock of Conexant for a purchase price of cash The acquisition will be 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 will be 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 will be recorded as goodwill. As of the date of the filing of this Form 10-Q, the purchase price allocation has not been prepared as there has not been enough time to complete the related activities . Marvell 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 processing technology for video and audio applications for the smart home Marvell presence in the smart home market and increase opportunities to drive increased revenue. We expect to close the Marvell Business Acquisition in the first quarter of fiscal 2018. Convertible Debt On June 20, 2017, we entered into a purchase agreement (the “Purchase Agreement”) with Wells Fargo Securities, LLC, as representative of the several initial purchasers named therein (collectively, the “Initial Purchasers”), pursuant to which we agreed to issue and sell, and the Initial Purchasers agreed to purchase, $500 million aggregate principal amount of the Company’s 0.50% Convertible Senior Notes due 2022 (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 from the Offering, after deducting discounts and commissions and estimated offering expenses payable by the Company, were approximately $514.5 million, which includes proceeds from the exercise of the Initial Purchasers’ option to purchase additional Notes. The Offering was completed on June 26, 2016, and we received the proceeds on such date. The Notes bear interest at a rate of 0.50% per year. Interest will accrue from June 26, 2017 and will be 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 of the Company and rank senior in right of payment to any of the Company’s indebtedness that is expressly subordinated in right of payment to the Notes; equal in right of payment to any of the Company’s liabilities that are not so subordinated; effectively junior in right of payment to any of the Company’s 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 (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 only 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, 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 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 the Company’s common stock, as determined by the Company, 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 the Company provides 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 Convertible Notes with cash. Payment of Debt On 26, 2017, we used $220.0 million of the proceeds from the Notes, to pay the balance due on our revolving credit facility under the Credit Agreement, plus interest due, and to pay the balance due on our term loan, plus interest due. As of June 26, 2017, the term loan under the Credit Agreement was fully paid and closed. In July 2017, we made an election to reduce the commitment under the revolving credit facility under the Credit Agreement to $250.0 million. Common Stock Purchases Pursuant to our common stock repurchase program, on June 26, 2017, and in connection with our issuance of the Notes, we used a portion of the proceeds from the Notes, to purchase 1,698,400 shares of our common stock for $93.6 million

Organization and Summary of S23

Organization and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Jun. 24, 2017
Accounting Policies [Abstract]
Organization and Basis of Presentation	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; and other select electronic devices, including devices in automobiles. Every solution we deliver either contains or consists of our touch- or fingerprint-based semiconductor solutions, which includes our capacitive sensing ASIC, customer-specific firmware, and software, or a driver-based semiconductor solution which includes our capacitive sensing ASIC. Our original equipment manufacturer, or OEM, customers include many of the world’s largest OEMs for smartphones and most of the world’s largest PC OEMs. 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 24, 2017, June 25, 2016 and June 27, 2015. For simplicity, the accompanying consolidated financial statements have been shown as fiscal year periods and as of the end of our fiscal year ending in June.
Use of Estimates	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 and Investments Cash equivalents consist of highly liquid investments with original maturities of three months or less. Our non-current investments, which are included in non-current other assets in the consolidated balance sheets, consist of ARS investments and are reported at fair value, with unrealized gains and losses excluded from earnings and shown separately as a component of accumulated other comprehensive income within stockholders’ equity. We charge other-than-temporary declines in the fair value of a debt security to earnings if the decline is due to a credit loss or if we intend to or need to sell at a loss, resulting in the establishment of a new cost basis in the debt security. We charge other-than-temporary declines in the fair value of a debt security to other comprehensive income if the decline is due to a noncredit loss. We charge other-than-temporary declines in the fair value of an equity security to earnings. We include interest earned and accretion on securities in interest income. We determine realized gains and losses on the sale of securities using the specific identification method. Our cash equivalents and investments classified as available-for-sale securities as of the end of fiscal 2017 and 2016 were as follows (in millions): 2017 Gross Amortized Unrealized Fair Cost Gains Value Reported as cash equivalents: Money market funds $ 361.7 $ — $ 361.7 Reported as non-current assets: Auction rate securities - 1.5 1.5 Total available-for-sale securities $ 361.7 $ 1.5 $ 363.2 2016 Gross Amortized Unrealized Fair Cost Gains Value Reported as cash equivalents: Money market funds $ 319.1 $ — $ 319.1 Reported as non-current assets: Auction rate securities 5.3 3.3 8.6 Total available-for-sale securities $ 324.4 $ 3.3 $ 327.7
Fair Value	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 2017 and 2016 were as follows (in millions): 2017 2016 Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Assets: Money market $ 361.7 $ — $ — $ 319.1 $ — $ — Auction rate securities — — 1.5 — — 8.6 Total available-for-sale securities $ 361.7 $ — $ 1.5 $ 319.1 $ — $ 8.6 The valuation of our auction rate securities is discussed in Note 3. In connection with the acquisition of Validity Sensors, Inc., or Validity, we entered into a contingent consideration arrangement. As of June 30, 2017, the balance of $8.7 million represents a contractual liability which is no longer subject to valuation as the carrying amount approximates the fair value. The balance represents amounts we have not paid and have retained, subject to resolution of matters related to the Amkor Technology legal dispute (see Legal Proceedings under Note 8). Changes in fair value of our Level 3 financial assets for fiscal 2017 and 2016 were as follows (in millions): 2017 2016 Beginning balance $ 8.6 $ 15.8 Net unrealized loss (1.5 ) (2.7 ) Impairment recovery on redeemed investments 1.9 2.1 Redemptions (7.5 ) (6.6 ) Ending balance $ 1.5 $ 8.6 Changes in fair value of our Level 3 financial liabilities for fiscal 2016 were as follows (in millions): 2016 Beginning balance $ 44.2 Cash settlement of contingent consideration liability (18.2 ) Issuance of common stock in settlement of liability — Accretion and remeasurement (0.5 ) Transfer out (25.5 ) Ending balance $ — During fiscal 2016 we transferred $25.5 million of contingent consideration liability out of our Level 3 liabilities, as the underlying contingencies were resolved and it became a contractual liability as of the end of fiscal 2016. The carrying value of $25.5 million approximated fair value, and was included in current acquisition-related liabilities as of the end of fiscal 2016. During fiscal 2017 we paid $16.8 million of this liability and $8.7 million is included in current acquisition-related liabilities as of the end of fiscal 2017. There were no transfers in or out of our Level 1 or 2 assets or liabilities during fiscal 2017 or 2016. 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	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. Included within our investment portfolio are investments in ARS investments, which met our investment guidelines at the time of investment. Our ARS investments are currently not liquid as a result of continued auction failures. 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 2017 and 2016: 2017 2016 Customer A 17% 12% Customer B 15% 10% Customer C 13% * Customer D 10% 13% Customer E * 14% Customer F * 11% * Less than 10%
Other Concentrations	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 extra lead time. In order to mitigate any adverse impacts from a disruption of supply, we strive to maintain an adequate supply of critical single-sourced components.
Revenue Recognition	Revenue Recognition We recognize revenue from product sales when there is persuasive evidence that an arrangement exists, delivery has occurred and title has transferred, the price is fixed or determinable, and collection is reasonably assured. We accrue for estimated sales returns, incentives and other allowances at the time we recognize revenue. Our products contain embedded firmware and software, which together with, or consisting of, our ASIC chip, deliver the essential functionality of our products and, as such, software revenue recognition guidance is not applicable. Our sales to distributors are made under agreements that generally do not provide for price adjustments after purchase and provide for only limited return rights under product warranty. Revenue on these sales is recognized in the same manner as sales to our non-distributor customers. When sales rebates and price allowances are applicable they are estimated and recorded in the period the related revenue is recognized.
Advertising Costs	Advertising Costs Advertising costs, if any, are expensed when incurred.
Allowance for Doubtful Accounts	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	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; inventory write-downs and losses on purchase obligations; and warranty costs.
Inventories	Inventories Inventories are stated at the lower of cost (first-in, first-out method) or market (estimated net realizable value) as of the end of fiscal 2017 and 2016 and consisted of the following (in millions): 2017 2016 Raw materials $ 94.7 $ 59.2 Finished goods 36.7 87.2 $ 131.4 $ 146.4 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	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	Other Assets In April 2017, we paid $18.4 million for a 14.4% interest in OXi Technology Ltd., or OXi. Our investment in OXi is included in non-current other assets on our consolidated balance sheet. We determined the equity method of accounting applies to our investment as we have significant influence over OXi’s operating and financial policies. We will record our portion of OXi’s net income on a one quarter lag due to the timing of the availability of OXi’s financial records, therefore, as of June 30, 2017, we did not record our portion of OXi’s net income or loss for the April 2017 through June 2017 period. In addition, we will amortize intangible assets that we recorded under the equity method of accounting, and such amortization is included in Equity investment loss on our consolidated statements of income. As of June 30, 2017, we did not have any related party transactions with OXi.
Foreign Currency	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 $0.7 million and $5.8 million in fiscal 2017 and fiscal 2016, respectively, and a net gain of $14.7 million in fiscal 2015. Gains and losses resulting from foreign currency transactions are included in selling, general, and administrative expenses in the consolidated statements of income. We also enter into foreign currency contracts to manage exposure related to certain foreign currency obligations. The foreign currency contracts are not designated as hedging instruments and, accordingly, are not subject to hedge accounting. In fiscal year 2015, we entered into foreign currency forward contracts to purchase Japanese yen, using U.S. dollars. As of June 30, 2017, and 2016 we had no outstanding foreign currency forward contracts. In fiscal 2017 we had no active contracts, in fiscal 2016 we recognized net realized gains of $4.8 million and in fiscal 2015 we recognized net unrealized losses of $1.3 million on foreign currency forward contracts, which are recorded in selling, general, and administrative expenses in the consolidated statements of income.
Goodwill	Goodwill Goodwill represents the excess of the purchase price over the fair value of net tangible and identifiable intangible assets acquired. There were no changes in our goodwill balance in fiscal 2017 and 2016. We have allocated our goodwill to a single company-wide reporting unit. We perform a qualitative assessment of the goodwill in the fourth quarter of each fiscal year. 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. We concluded that the fair value of the single company-wide reporting unit exceeded its carrying amount, therefore, there is no need for impairment. No goodwill impairment was recognized for fiscal 2017, 2016, and 2015.
Impairment of Long-Lived Assets	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. During fiscal 2016, we recorded a $6.7 million impairment charge for an acquired intangible asset related to ThinTouch developed technology, which we determined is probable not to be recoverable, based on revenue forecasts. This intangible asset has been written down to zero. During fiscal 2017 and 2015, we did not have an impairment charge.
Other Accrued Liabilities	Other Accrued Liabilities As of the end of fiscal 2017 and 2016, other accrued liabilities consisted of the following (in millions): 2017 2016 Customer obligations $ 34.8 $ 34.8 Inventory obligations 41.8 24.0 Warranty 4.4 3.5 Other 20.8 20.0 $ 101.8 $ 82.3
Segment Information	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 is the chief executive officer who evaluates financial performance and allocates resources using financial information reported on a company-wide basis.
Share-Based Compensation	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 expected life for our options was previously estimated based on historical trends since our initial public offering. In fiscal 2011, we began to grant options with a contractual life of seven years rather than 10 years, and we began using the simplified method to establish the expected life as we did not have any history of options with seven-year lives. Our outstanding options have vesting periods of three or four years, depending on when they were granted and we continue to use 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. Further, we estimate forfeitures for share-based awards that are not expected to vest. We charge estimated fair value less estimated 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 option and deferred stock unit, or DSU, awards, three years for our market stock unit, or MSU, awards, and up to two years for 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, generally three years, adjusted for estimated forfeitures for each vesting tranche of the award. 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	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 consider the operating earnings of our foreign subsidiaries to be indefinitely invested outside the United States. Accordingly, no provision has been made for the U.S. federal, state, or foreign taxes that may result from future remittances of undistributed earnings of our foreign subsidiaries. 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 Research and development costs are expensed as incurred.

Organization and Summary of S24

Organization and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Jun. 24, 2017
Accounting Policies [Abstract]
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 2017 and 2016 were as follows (in millions): 2017 Gross Amortized Unrealized Fair Cost Gains Value Reported as cash equivalents: Money market funds $ 361.7 $ — $ 361.7 Reported as non-current assets: Auction rate securities - 1.5 1.5 Total available-for-sale securities $ 361.7 $ 1.5 $ 363.2 2016 Gross Amortized Unrealized Fair Cost Gains Value Reported as cash equivalents: Money market funds $ 319.1 $ — $ 319.1 Reported as non-current assets: Auction rate securities 5.3 3.3 8.6 Total available-for-sale securities $ 324.4 $ 3.3 $ 327.7
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 2017 and 2016 were as follows (in millions): 2017 2016 Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Assets: Money market $ 361.7 $ — $ — $ 319.1 $ — $ — Auction rate securities — — 1.5 — — 8.6 Total available-for-sale securities $ 361.7 $ — $ 1.5 $ 319.1 $ — $ 8.6
Changes in Fair Value of Level 3 Financial Assets	Changes in fair value of our Level 3 financial assets for fiscal 2017 and 2016 were as follows (in millions): 2017 2016 Beginning balance $ 8.6 $ 15.8 Net unrealized loss (1.5 ) (2.7 ) Impairment recovery on redeemed investments 1.9 2.1 Redemptions (7.5 ) (6.6 ) Ending balance $ 1.5 $ 8.6
Changes in Fair Value of Contingent Consideration	Changes in fair value of our Level 3 financial liabilities for fiscal 2016 were as follows (in millions): 2016 Beginning balance $ 44.2 Cash settlement of contingent consideration liability (18.2 ) Issuance of common stock in settlement of liability — Accretion and remeasurement (0.5 ) Transfer out (25.5 ) Ending balance $ —
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 2017 and 2016: 2017 2016 Customer A 17% 12% Customer B 15% 10% Customer C 13% * Customer D 10% 13% Customer E * 14% Customer F * 11% * Less than 10%
Inventories	Inventories are stated at the lower of cost (first-in, first-out method) or market (estimated net realizable value) as of the end of fiscal 2017 and 2016 and consisted of the following (in millions): 2017 2016 Raw materials $ 94.7 $ 59.2 Finished goods 36.7 87.2 $ 131.4 $ 146.4
Other Accrued Liabilities	As of the end of fiscal 2017 and 2016, other accrued liabilities consisted of the following (in millions): 2017 2016 Customer obligations $ 34.8 $ 34.8 Inventory obligations 41.8 24.0 Warranty 4.4 3.5 Other 20.8 20.0 $ 101.8 $ 82.3

Net Income Per Share (Tables)

Net Income Per Share (Tables)	12 Months Ended
	Jun. 24, 2017
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 2017, 2016, and 2015 was as follows (in millions, except per share amounts): 2017 2016 2015 Numerator: Net income $ 48.8 $ 72.2 $ 110.4 Denominator: Shares, basic 34.8 36.6 36.9 Effect of dilutive share-based awards 0.8 1.3 2.0 Shares, diluted 35.6 37.9 38.9 Net income per share: Basic $ 1.40 $ 1.97 $ 2.99 Diluted $ 1.37 $ 1.91 $ 2.84
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 2017, 2016, and 2015 as follows (in millions): 2017 2016 2015 Share-based awards 1.4 0.7 0.3

Auction Rate Securities (Tables

Auction Rate Securities (Tables)	12 Months Ended
	Jun. 24, 2017
Text Block [Abstract]
ARS Investments	The type of ARS investments we held as of the end of fiscal 2017, including the original cost basis, other-than-temporary impairment included in retained earnings, new cost basis, unrealized gain, and fair value consisted of the following (in millions): Original Cost Basis Other-than- temporary Impairment in Retained Earnings New Cost Basis Unrealized Gain Fair Value Preferred stock $ 5.0 $ (5.0 ) $ — $ 1.5 $ 1.5 The various types of ARS investments we held as of the end of fiscal 2016, including the original cost basis, other-than-temporary impairment included in retained earnings, new cost basis, unrealized gain, and fair value consisted of the following (in millions): Original Cost Basis Other-than- temporary Impairment in Retained Earnings New Cost Basis Unrealized Gain Fair Value Credit linked notes $ 7.5 $ (2.2 ) (1) $ 5.3 $ 1.8 $ 7.1 Preferred stock 5.0 (5.0 ) — 1.5 1.5 Total ARS Investments $ 12.5 $ (7.2 ) $ 5.3 $ 3.3 $ 8.6 (1) Other-than-temporary impairment in retained earnings is partially offset by cumulative accretion of $4.4 million on non-current other assets. Accretion is reclassified from accumulated other comprehensive income and recorded in the consolidated statements of income as interest income.

Property and Equipment (Tables)

Property and Equipment (Tables)	12 Months Ended
	Jun. 24, 2017
Property Plant And Equipment [Abstract]
Property and Equipment	Property and equipment as of the end of fiscal 2017 and 2016 consisted of the following (in millions): Life 2017 2016 Land — $ 13.3 $ 13.3 Building and building improvements 35 years 47.9 44.5 Computer equipment 3 - 5 years 29.7 25.3 Manufacturing equipment 1 75.7 65.8 Furniture, fixtures, and leasehold improvements 3 - 10 years 21.5 21.1 Capitalized software 3 - 7 years 32.5 30.0 220.6 200.0 Accumulated depreciation and amortization (106.8 ) (87.3 ) Property and equipment, net $ 113.8 $ 112.7

Acquired Intangibles (Tables)

Acquired Intangibles (Tables)	12 Months Ended
	Jun. 24, 2017
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 2017 and 2016 (in millions): Weighted Average Life in Years 2017 2016 Display driver technology 5.3 $ 164.0 $ 164.0 Fingerprint authentication technology 4.3 63.5 75.6 Customer relationships 2.8 48.4 48.4 Licensed technology and other 5.0 1.3 1.3 Patents 7.7 4.8 4.8 Supplier arrangement - 22.0 Acquired intangibles, gross 4.3 282.0 316.1 Accumulated amortization (181.0 ) (155.8 ) Acquired intangibles, net $ 101.0 $ 160.3
Schedule of Expected Annual Aggregate Amortization Expense	The following table presents expected annual aggregate amortization expense in future fiscal years (in millions): 2018 $ 48.6 2019 34.2 2020 10.6 2021 3.5 2022 3.5 Thereafter 0.6 Future amortization $ 101.0

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Jun. 24, 2017
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 2018 $ 7.9 2019 2.9 2020 0.8 2021 0.4 2022 0.1 Thereafter - Total minimum operating lease payments $ 12.1

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	12 Months Ended
	Jun. 24, 2017
Equity [Abstract]
Shares Reserved for Future Issuance	Shares of common stock reserved for future issuance as of the end of fiscal 2017 were as follows: Stock options outstanding 2,490,168 Deferred stock units outstanding 1,320,798 Market stock units outstanding 158,596 Awards available for grant under all share-based compensation plans 2,947,069 Reserved for future issuance 6,916,631

Share-Based Compensation (Table

Share-Based Compensation (Tables)	12 Months Ended
	Jun. 24, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-Based Compensation Awards Available for Grant or Issuance	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 2017, were as follows: Awards 2010 Available 2010 Employee Under All Incentive Stock Share-Based Compensation Purchase Award Plans Plan Plan Balance at June 2016 1,458,301 1,128,167 330,134 Additional shares authorized 2,952,121 2,600,000 352,121 Stock options granted (356,107 ) (356,107 ) — Deferred stock units granted (922,784 ) (922,784 ) — Market stock units granted (105,800 ) (105,800 ) — Market stock units performance adjustment 55,739 55,739 — Purchases under employee stock purchase plan (302,085 ) — (302,085 ) Forfeited 355,855 355,855 — Fungible Shares Ratio Adjustment (188,171 ) (188,171 ) — Plan shares expired — — — Balance at June 2017 2,947,069 2,566,899 380,170
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 2017, 2016, and 2015 were as follows (in millions): 2017 2016 2015 Cost of revenue $ 2.2 $ 1.8 $ 1.4 Research and development 33.1 30.6 24.5 Selling, general, and administrative 26.5 24.4 18.2 Total $ 61.8 $ 56.8 $ 44.1 Income tax benefit on share-based compensation $ 16.1 $ 14.7 $ 12.5
Balance of Outstanding and Exercisable Stock Options	Certain stock option activity for fiscal 2017 and balances as of the end of fiscal 2017 were as follows: Stock Weighted Option Average Intrinsic Awards Exercise Value Outstanding Price (In millions) Balance at June 2016 2,711,542 $ 46.69 Granted 356,107 53.24 Exercised (404,738 ) 26.48 Forfeited (105,827 ) 70.81 Expired (66,916 ) 72.57 Balance at June 2017 2,490,168 49.20 $ 41.1 Exercisable at June 2017 1,911,046 44.28 $ 39.1
Cash Received and Aggregate Intrinsic Value of Stock Options Exercised	Cash received and the aggregate intrinsic value of stock options exercised for fiscal 2017, 2016, and 2015 were as follows (in millions): 2017 2016 2015 Cash received $ 10.7 $ 16.6 $ 36.2 Aggregate intrinsic value $ 12.3 $ 29.7 $ 69.9
Shares Purchased, Weighted Average Purchase Price, Cash Received, and Aggregate Intrinsic Value for ESPP	Shares purchased, weighted average purchase price, cash received, and the aggregate intrinsic value for employee stock purchase plan purchases in fiscal 2017, 2016, and 2015 were as follows (in millions, except shares purchased and weighted average purchase price): 2017 2016 2015 Shares purchased 302,085 302,781 367,646 Weighted average purchase price $ 46.74 $ 52.42 $ 35.11 Cash received $ 14.1 $ 15.8 $ 12.9 Aggregate intrinsic value $ 2.7 $ 7.0 $ 13.7
Fair Value of Each Award Granted under ESPP	The fair value of each award granted under our 2010 ESPP for fiscal 2017, 2016, and 2015 was estimated using the Black-Scholes option pricing model, assuming no expected dividends and the following range of assumptions: 2017 2016 2015 Expected volatility 38.4 - 54.9% 37.4% - 40.6% 36.8% - 47.9% Expected life in years 0.5 - 2.0 0.5 - 1.0 0.5 - 2.0 Risk-free interest rate 0.62% - 1.20% 0.33% - 0.54% 0.07% - 0.54% Fair value per award $ 20.44 $ 24.52 $ 21.23
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 2017, and the balance and aggregate intrinsic value of MSUs as of the end of fiscal 2017 were as follows: Aggregate Weighted Intrinsic Average MSU Awards Value Grant Date Outstanding (in millions) Fair Value Balance at June 30, 2016 146,150 $ 97.54 Granted 105,800 67.51 Performance adjustment (55,739 ) — Delivered (10,339 ) 60.62 Forfeited (27,276 ) 91.88 Balance at June 30, 2017 158,596 $ 9.5 82.88
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 2017, and the balance and aggregate intrinsic value of DSUs as of the end of fiscal 2017 were as follows: Aggregate Weighted Intrinsic Average DSU Awards Value Grant Date Outstanding (in millions) Fair Value Balance at June 30, 2016 1,005,981 $ 77.93 Granted 922,784 62.62 Delivered (452,131 ) 73.36 Forfeited (155,836 ) 75.14 Balance at June 30, 2017 1,320,798 $ 79.2 69.14
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 2017, 2016, and 2015 was estimated at the date of grant using the Black-Scholes option pricing model, assuming no expected dividends and the following range of assumptions: 2017 2016 2015 Expected volatility 45.2% - 48.3% 40.4% - 38.7% - Expected life in years 3.8 - 4.6 3.8 3.8 Risk-free interest rate 1.03% - 1.94% 1.22% - 1.72% 1.18% - 1.80% Fair value per award $ 21.08 $ 28.30 $ 27.19
Incentive Compensation Plans [member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Fair Value of Each Award Granted	The fair value of each MSU granted from our plans for fiscal 2017, 2016, and 2015 was estimated at the date of grant using the Monte Carlo simulation model, assuming no expected dividends and the following assumptions: 2017 2016 2015 Expected volatility of company 52.54 % 45.57 % 43.65 % Expected volatility of SOX index 21.23 % 19.65 % 20.60 % Correlation coefficient 0.45 0.42 0.43 Expected life in years 2.92 2.94 2.93 Risk-free interest rate 1.01 % 0.92 % 0.79 % Fair value per award $ 67.51 $ 126.74 $ 66.48

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Jun. 24, 2017
Income Tax Disclosure [Abstract]
Tabular Disclosure of Income Before Income Tax Between Domestic and Foreign Jurisdictions	Income before provision for income taxes for fiscal 2017, 2016, and 2015 consisted of the following (in millions): 2017 2016 2015 United States $ (10.1 ) $ 12.3 $ 13.4 Foreign 71.4 63.3 146.8 Income before provision for income taxes $ 61.3 $ 75.6 $ 160.2
Provision for Income Taxes	The provision for income taxes for fiscal 2017, 2016, and 2015 consisted of the following (in millions): 2017 2016 2015 Current tax expense Federal $ 9.6 $ 12.1 $ 12.0 Foreign 25.5 12.4 63.0 35.1 24.5 75.0 Deferred tax benefit Federal (10.6 ) (7.5 ) (3.7 ) Foreign (12.3 ) (13.6 ) (21.5 ) (22.9 ) (21.1 ) (25.2 ) Provision for income taxes $ 12.2 $ 3.4 $ 49.8
Provision for Income Taxes Differs from Federal Statutory Rate	The provision for income taxes differs from the federal statutory rate for fiscal 2017, 2016, and 2015 as follows (in millions): 2017 2016 2015 Provision at U.S. federal statutory rate $ 21.5 $ 26.6 $ 56.1 Qualified stock options 5.5 5.1 2.7 Business credits (3.6 ) (10.3 ) (4.7 ) Foreign tax differential (13.2 ) (22.4 ) (4.3 ) Non-deductible portion of contingent consideration 0.9 0.9 (4.7 ) Change in valuation allowance (0.8 ) (1.4 ) (0.5 ) Nondeductible amortization 1.6 4.4 2.7 Other differences 0.3 0.5 2.5 Provision for income taxes $ 12.2 $ 3.4 $ 49.8
Net Deferred Tax Assets (Liabilities)	Net deferred tax assets as of the end of fiscal 2017 and 2016 consisted of the following (in millions): 2017 2016 Non-current deferred tax assets $ 23.1 $ 14.7 Non-current deferred tax liabilities - (9.0 ) Net deferred tax assets $ 23.1 $ 5.7
Significant Components of Deferred Tax Assets (Liabilities)	Significant components of our deferred tax assets (liabilities) as of the end of fiscal 2017 and 2016 consisted of the following (in millions): 2017 2016 Deferred tax assets: Investment writedowns $ 1.8 $ 2.5 Inventory writedowns 7.4 6.5 Property and equipment 3.0 0.8 Accrued compensation 0.2 2.5 Deferred compensation 1.9 1.7 Share-based compensation 15.6 12.6 Business credit carryforward 19.2 16.2 Net operating loss carryforward 0.3 2.5 Other accruals 2.0 2.4 51.4 47.7 Valuation allowance (15.8 ) (14.1 ) 35.6 33.6 Deferred tax liabilities: Acquisition intangibles (9.2 ) (22.9 ) Interest (3.3 ) (5.0 ) (12.5 ) (27.9 ) Net deferred tax assets $ 23.1 $ 5.7
Reconciliation of Gross Unrecognized Tax Benefits	A reconciliation of the beginning and ending balance of gross unrecognized tax benefits for fiscal 2017, 2016, and 2015 consisted of the following (in millions): 2017 2016 2015 Beginning balance $ 13.4 $ 11.6 $ 10.2 Increase in unrecognized tax benefits related to current year tax positions 2.5 1.6 2.3 Increase in unrecognized tax benefits related to prior year tax positions 0.1 1.1 0.3 Decrease due to statute expiration (0.8 ) (0.9 ) (1.2 ) Ending Balance $ 15.2 $ 13.4 $ 11.6

Segment, Customers, and Geogr33

Segment, Customers, and Geographic Information (Tables)	12 Months Ended
	Jun. 24, 2017
Net Revenue within Geographic Areas Based on Customers' Locations	Net revenue within geographic areas based on our customers’ locations for fiscal 2017, 2016, and 2015, consisted of the following (in millions): 2017 2016 2015 China $ 844.8 $ 518.7 $ 504.2 Japan 426.5 651.0 698.5 United States 231.4 249.1 223.0 South Korea 123.8 182.5 142.1 Taiwan 66.4 61.1 127.2 Other 25.3 4.5 8.0 $ 1,718.2 $ 1,666.9 $ 1,703.0
Net Revenue from External Customers	Net revenue from external customers for each group of similar products for fiscal 2017, 2016, and 2015 consisted of the following (in millions): 2017 2016 2015 Mobile product applications $ 1,489.0 $ 1,459.5 $ 1,442.1 PC product applications 229.2 207.4 260.9 $ 1,718.2 $ 1,666.9 $ 1,703.0
Long-Lived Assets within Geographic Areas	Long-lived assets within geographic areas as of the end of fiscal 2017 and 2016 consisted of the following (in millions): 2017 2016 United States $ 159.4 $ 174.8 Asia/Pacific 262.1 305.0 $ 421.5 $ 479.8
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 2017, 2016, and 2015 were as follows: 2017 2016 2015 Customer A 24% 20% 16% Customer B 19% 21% 18% Customer C 10% * * Customer D * 15% 11% Customer E * * 11% * Less than 10%

Restructuring Activities (Table

Restructuring Activities (Tables)	12 Months Ended
	Jun. 24, 2017
Restructuring And Related Activities [Abstract]
Restructuring Liability Activities	The restructuring liability activities during fiscal 2017 and 2016 were as follows (in 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

Organization and Summary of S35

Organization and Summary of Significant Accounting Policies - Investments in Available-for-Sale Securities and Cash Equivalents (Detail) - USD ($) $ in Millions	Jun. 24, 2017	Jun. 25, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 361.7	$ 324.4
Gross Unrealized Gains	1.5	3.3
Fair Value	363.2	327.7
Money Market [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	361.7	319.1
Fair Value	361.7	319.1
Auction Rate Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		5.3
Fair Value		8.6
Non-Current Assets [Member] | Auction Rate Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		5.3
Gross Unrealized Gains	1.5	3.3
Fair Value	$ 1.5	$ 8.6

Organization and Summary of S36

Organization and Summary of Significant Accounting Policies - Financial Assets Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Millions	Jun. 24, 2017	Jun. 25, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available-for-sale securities	$ 363.2	$ 327.7
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available-for-sale securities	361.7	319.1
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available-for-sale securities	1.5	8.6
Fair Value, Measurements, Recurring [Member] | Money Market [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available-for-sale securities	361.7	319.1
Fair Value, Measurements, Recurring [Member] | Auction Rate Securities [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total available-for-sale securities	$ 1.5	$ 8.6

Organization and Summary of S37

Organization and Summary of Significant Accounting Policies - Additional Information (Detail)	1 Months Ended	12 Months Ended
	Apr. 30, 2017USD ($)	Jun. 24, 2017USD ($)Segment	Jun. 25, 2016USD ($)	Jun. 27, 2015USD ($)	Jun. 25, 2011	Jun. 30, 2017USD ($)	Jun. 30, 2016USD ($)
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Contractual liability						$ 8,700,000
Contingent consideration liability out of level 3 liabilities			$ 25,500,000
Acquisition-related liabilities		$ 8,700,000	25,500,000
Acquisition-related liabilities paid		16,800,000
Transfer amount of assets or liabilities of level one		0	0
Transfer amount of assets or liabilities of level two		0	0
Equity method investment		18,400,000
Foreign currency forward contracts outstanding amount							$ 0
Goodwill, period increase (decrease)		0	0
Goodwill impairment		$ 0	0	$ 0
Impairment of acquired intangibles			6,700,000
Number of operating segments | Segment		1
Contractual life of grant option					7 years
Contractual life of Grant option					10 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
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
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
Thin Touch Developed Technology [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Impairment of acquired intangibles		$ 0	6,700,000	0
Intangible assets			0
Subsequent Event [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Foreign currency forward contracts outstanding amount						$ 0
Forward Contracts [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Net gain (loss) on foreign currency transactions			4,800,000	(1,300,000)
Renesas SP Drivers, Inc. [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Net gain (loss) on foreign currency transactions		$ (700,000)	$ (5,800,000)	$ 14,700,000
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%

Organization and Summary of S38

Organization and Summary of Significant Accounting Policies - Changes in Fair Value of Level 3 Financial Assets (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016
Fair Value Disclosures [Abstract]
Beginning balance	$ 8.6	$ 15.8
Net unrealized loss	(1.5)	(2.7)
Impairment recovery on redeemed investments	1.9	2.1
Redemptions	(7.5)	(6.6)
Ending balance	$ 1.5	$ 8.6

Organization and Summary of S39

Organization and Summary of Significant Accounting Policies - Changes in Fair Value of Level 3 Contingent Consideration Liability (Detail) $ in Millions	12 Months Ended
	Jun. 25, 2016USD ($)
Fair Value Disclosures [Abstract]
Beginning balance	$ 44.2
Cash settlement of contingent consideration liability	(18.2)
Accretion and remeasurement	(0.5)
Transfer out	$ (25.5)

Organization and Summary of S40

Organization and Summary of Significant Accounting Policies - Accounts Receivable Balance Percentage of Different Customers (Detail) - Credit Concentration Risk [Member] - Accounts Receivable [Member]	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016
Customer A [Member]
Revenue, Major Customer [Line Items]
Accounts receivable major customer percentage	17.00%	12.00%
Customer B [Member]
Revenue, Major Customer [Line Items]
Accounts receivable major customer percentage	15.00%	10.00%
Customer C [Member]
Revenue, Major Customer [Line Items]
Accounts receivable major customer percentage	13.00%
Customer D [Member]
Revenue, Major Customer [Line Items]
Accounts receivable major customer percentage	10.00%	13.00%
Customer E [Member]
Revenue, Major Customer [Line Items]
Accounts receivable major customer percentage		14.00%
Customer F [Member]
Revenue, Major Customer [Line Items]
Accounts receivable major customer percentage		11.00%

Organization and Summary of S41

Organization and Summary of Significant Accounting Policies - Inventories (Detail) - USD ($) $ in Millions	Jun. 24, 2017	Jun. 25, 2016
Inventory Disclosure [Abstract]
Raw materials	$ 94.7	$ 59.2
Finished goods	36.7	87.2
Total Inventories	$ 131.4	$ 146.4

Organization and Summary of S42

Organization and Summary of Significant Accounting Policies - Other Accrued Liabilities (Detail) - USD ($) $ in Millions	Jun. 24, 2017	Jun. 25, 2016
Payables And Accruals [Abstract]
Customer obligations	$ 34.8	$ 34.8
Inventory obligations	41.8	24
Warranty	4.4	3.5
Other	20.8	20
Other accrued liabilities	$ 101.8	$ 82.3

Net Income Per Share - Computat

Net Income 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. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Numerator:
Net income	$ 48.8	$ 72.2	$ 110.4
Denominator:
Shares, basic	34.8	36.6	36.9
Effect of dilutive share-based awards	0.8	1.3	2
Shares, diluted	35.6	37.9	38.9
Net income per share:
Basic	$ 1.40	$ 1.97	$ 2.99
Diluted	$ 1.37	$ 1.91	$ 2.84

Net Income Per Share - Share-Ba

Net Income Per Share - Share-Based Awards, not Included in Calculation of Diluted Net Income Per Share (Detail) - shares shares in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Share-Based Awards [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Share-based awards	1.4	0.7	0.3

Auction Rate Securities - Addit

Auction Rate Securities - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Schedule of Available-for-sale Securities [Line Items]
Auction Rate Securities with fair value having no stated maturity	$ 1.5
Auction Rate Securities Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
ARS investments redeemed at par value	7.5	$ 6.6	$ 4.9
Original Cost Basis		$ 12.5
Auction Rate Securities Investments [Member] | Below Investment Grade [Member]
Schedule of Available-for-sale Securities [Line Items]
Original Cost Basis	$ 5

Auction Rate Securities - ARS I

Auction Rate Securities - ARS Investments (Detail) - USD ($) $ in Millions		Jun. 24, 2017	Jun. 25, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		$ 361.7	$ 324.4
Fair Value		363.2	327.7
Auction Rate Securities Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Original Cost Basis			12.5
Other-than- temporary Impairment in Retained Earnings			(7.2)
Amortized Cost			5.3
Unrealized Gain			3.3
Fair Value			8.6
Auction Rate Securities Investments [Member] | Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Original Cost Basis		5	5
Other-than- temporary Impairment in Retained Earnings		(5)	(5)
Unrealized Gain		1.5	1.5
Fair Value		$ 1.5	1.5
Auction Rate Securities Investments [Member] | Credit Linked Notes [Member]
Schedule of Available-for-sale Securities [Line Items]
Original Cost Basis			7.5
Other-than- temporary Impairment in Retained Earnings	[1]		(2.2)
Amortized Cost			5.3
Unrealized Gain			1.8
Fair Value			$ 7.1
[1]	Other-than-temporary impairment in retained earnings is partially offset by cumulative accretion of $4.4 million on non-current other assets. Accretion is reclassified from accumulated other comprehensive income and recorded in the consolidated statements of income as interest income.

Auction Rate Securities - ARS47

Auction Rate Securities - ARS Investments (Parenthetical) (Detail) $ in Millions	Jun. 25, 2016USD ($)
Investments Debt And Equity Securities [Abstract]
Investment securities accretion	$ 4.4

Property and Equipment - Proper

Property and Equipment - Property and Equipment (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 220.6	$ 200
Accumulated depreciation and amortization	(106.8)	(87.3)
Property and equipment, net	113.8	112.7
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	$ 47.9	44.5
Estimated useful lives	35 years
Computer Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 29.7	25.3
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	$ 75.7	65.8
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	$ 21.5	21.1
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	$ 32.5	$ 30
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

Property and Equipment - Additi

Property and Equipment - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016
Property Plant And Equipment Useful Life And Values [Abstract]
Retirement of fully amortized property	$ 10.8	$ 10.9

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail) ¥ in Millions, $ in Millions	Oct. 01, 2014USD ($)¥ / $	Oct. 01, 2014JPY (¥)¥ / $	Jun. 24, 2017	Jun. 30, 2016USD ($)	Mar. 31, 2015USD ($)	Mar. 31, 2015JPY (¥)	Nov. 07, 2013
Business Acquisition [Line Items]
Additional purchase consideration settled					$ 48.6	¥ 5,780
Validity Sensors, Inc [Member]
Business Acquisition [Line Items]
Acquired outstanding common and preferred shares and voting interest							100.00%
Acquisition-related liabilities				$ 8.7
Renesas SP Drivers, Inc. [Member]
Business Acquisition [Line Items]
Acquired outstanding common and preferred shares and voting interest	100.00%	100.00%
Acquisition closing effective date			Oct. 1, 2014
Initial purchase price of acquisition	$ 463	¥ 50,600
Foreign currency exchange rate (Japanese yen to U.S. dollar) | ¥ / $	109.4	109.4
Indemnification hold back	$ 66	¥ 7,250
Working capital hold back	48	¥ 5,250
Additional purchase price consideration	4.8
Fair value of the consideration transferred totaled	$ 468

Acquired Intangibles - Summary

Acquired Intangibles - Summary of Life, Gross Carrying Value of Acquired Intangible Assets, and Related Accumulated Amortization (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016
Finite-Lived Intangible Assets [Line Items]
Acquired intangibles, gross	$ 282	$ 316.1
Accumulated amortization	(181)	(155.8)
Acquired intangibles, net	$ 101	160.3
Weighted Average Life in Years	4 years 3 months 19 days
Display Driver Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangibles, gross	$ 164	164
Weighted Average Life in Years	5 years 3 months 19 days
Fingerprint Authentication Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangibles, gross	$ 63.5	75.6
Weighted Average Life in Years	4 years 3 months 19 days
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangibles, gross	$ 48.4	48.4
Weighted Average Life in Years	2 years 9 months 18 days
Licensed Technology and Other [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangibles, gross	$ 1.3	1.3
Weighted Average Life in Years	5 years
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangibles, gross	$ 4.8	4.8
Weighted Average Life in Years	7 years 8 months 12 days
Supplier Arrangement [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangibles, gross		$ 22

Acquired Intangibles - Addition

Acquired Intangibles - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Finite-Lived Intangible Assets [Line Items]
Acquired intangibles amortization	$ 59.3	$ 73	$ 87.6
Fingerprint Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Disposal group including discontinued operation, intangible assets	12.1
Supplier Arrangement [Member]
Finite-Lived Intangible Assets [Line Items]
Disposal group including discontinued operation, intangible assets	$ 22

Acquired Intangibles - Schedule

Acquired Intangibles - Schedule of Expected Annual Aggregate Amortization Expense (Detail) - USD ($) $ in Millions	Jun. 24, 2017	Jun. 25, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
2,018	$ 48.6
2,019	34.2
2,020	10.6
2,021	3.5
2,022	3.5
Thereafter	0.6
Acquired intangibles, net	$ 101	$ 160.3

Debt - Additional Information (

Debt - Additional Information (Detail) - USD ($)	Jun. 26, 2017	Apr. 06, 2017	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015	Jul. 31, 2017	Jun. 30, 2017	Oct. 20, 2015	Sep. 30, 2014
Debt Instrument [Line Items]
Debt issuance cost			$ 1,200,000	$ 300,000	$ 400,000
Percentage of voting capital stock			65.00%
Description of periodic payments			The term loan facility requires repayment over five years with nineteen quarterly principal payments which began in the three months ended March 31, 2015.
Quarterly payment beginning period			Mar. 31, 2015
Final principal payment			$ 90,000,000
First Four Quarters [Member]
Debt Instrument [Line Items]
Quarterly principal payment			1,900,000
Next Fourteen Quarters [Member]
Debt Instrument [Line Items]
Quarterly principal payment			3,800,000
Credit Agreement [Member] | Bridge Loan [Member]
Debt Instrument [Line Items]
Line of credit facility amount			20,000,000
Credit Agreement [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Additional borrowing capacity		$ 200,000,000						$ 100,000,000
Line of credit facility amount		450,000,000						$ 250,000,000	$ 150,000,000
Amount borrowed under revolving credit facility			$ 100,000,000
Credit Agreement [Member] | Revolving Credit Facility [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Line of credit facility amount						$ 250,000,000
Amount borrowed under revolving credit facility							$ 220,000,000
Credit Agreement [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Commitment fee percentage of unused portion			0.25%
Credit Agreement [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Commitment fee percentage of unused portion			0.45%
Credit Agreement [Member] | Letter of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility amount			$ 20,000,000
Credit Agreement [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Line of credit facility amount			150,000,000
Amount borrowed under revolving credit facility			150,000,000
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member]
Debt Instrument [Line Items]
Increase in Line of credit facility			200,000,000
Debt issuance cost			$ 5,000,000
Debt amortization period			60 months
Description of Base Rate			The revolving credit facility and term loans bear 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 zero to 100 basis points for Base Rate loans and 100 basis points to 200 basis points for LIBOR loans.
Maturity period			Sep. 30, 2019
Maximum accounts receivable financings per quarter		$ 50,000,000	$ 50,000,000
Fixed coverage ratio			225.00%
Covenant description		The Incremental Amendment increased the maximum permitted leverage ratio during the last three years of the agreement from 2.0:1.0 to 2.50:1.00, with a further increase to 3.00:1.00 for the first four fiscal quarters ending after any acquisition having an aggregate consideration exceeding $150.0 million and stepping down to 2.75:1.00 thereafter, and modified the negative covenants to permit up to $50.0 million per fiscal quarter of accounts receivable financings.	Under the Credit Agreement, there are various restrictive covenants, including three 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 2.50 to 1.0 provided that for the four fiscal quarters ending after the date of a material acquisition, such maximum leverage ratio shall be adjusted to 3.0 to 1.0, and thereafter, shall not be more than 2.75 to 1.0. 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 2.25 to 1.0. As of the end of fiscal 2017, we were in compliance with the restrictive covenants.
Maximum leverage ratio permitted		250.00%
Minimum acquisition consideration under credit agreement		$ 150,000,000
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | For Four Fiscal Quarters Ending After Date of Material Acquisition [Member]
Debt Instrument [Line Items]
Current maximum leverage ratio			250.00%
Adjusted leverage ratio maximum			300.00%
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | Thereafter [Member]
Debt Instrument [Line Items]
Maximum leverage ratio			275.00%
Maximum leverage ratio permitted		275.00%
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | For The Four Consecutive Quarters Ending With The Quarter Of Measurement [Member]
Debt Instrument [Line Items]
Minimum interest coverage ratio			350.00%
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | Last Three Years of Agreement [Member]
Debt Instrument [Line Items]
Maximum leverage ratio permitted		200.00%
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | For The First Four Fiscal Quarters Ending After Any Acquisition [Member]
Debt Instrument [Line Items]
Maximum leverage ratio permitted		300.00%
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest rates on borrowings			1.85%
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Interest rates on borrowings			2.86%
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | Federal Funds Effective Swap Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			0.50%
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			1.00%
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			1.00%
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			2.00%
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | Base Rate [Member] | Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			0.00%
Credit Agreement [Member] | Revolving Credit and Term Loan Facility [Member] | Base Rate [Member] | Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			1.00%
0.50% Convertible Senior Notes due 2022 [Member] | Revolving Credit and Term Loan Facility [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Proceeds to pay off the balance	$ 220,000,000

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) ¥ in Millions, $ in Millions	1 Months Ended	12 Months Ended
	Jun. 24, 2017USD ($)	Jun. 24, 2017USD ($)	Jun. 25, 2016USD ($)	Jun. 27, 2015USD ($)	Sep. 30, 2015JPY (¥)
Commitments Contingencies And Litigation [Line Items]
Period of expiration dates of operating leases for office facilities		2017 to 2022
Total rent expense, recognized on a straight-line basis		$ 10.6	$ 9.2	$ 7.9
Contingent consideration liabilities recorded for business combinations	$ 8.7	$ 8.7
IIX Inc [Member]
Commitments Contingencies And Litigation [Line Items]
Indemnification Holdback Liability Non-current | ¥					¥ 648
Renesas [Member]
Commitments Contingencies And Litigation [Line Items]
Indemnification holdback liability remitted	$ 5.4
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

Commitments and Contingencies56

Commitments and Contingencies - Aggregate Minimum Rental Commitments for Non-Cancelable Operating Leases (Detail) $ in Millions	Jun. 24, 2017USD ($)
Commitments And Contingencies Disclosure [Abstract]
2,018	$ 7.9
2,019	2.9
2,020	0.8
2,021	0.4
2,022	0.1
Total minimum operating lease payments	$ 12.1

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($)	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016
Equity [Abstract]
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares outstanding	0	0
Stock repurchase program authorized amount	$ 1,150,000,000
Common stock repurchase program expiry date	Jul. 31, 2018
Stock repurchase program remaining authorized amount	$ 169,700,000

Stockholders' Equity - Shares R

Stockholders' Equity - Shares Reserved for Future Issuance (Detail) - shares	Jun. 24, 2017	Jun. 25, 2016
Class of Stock [Line Items]
Awards available for grant under all share-based compensation plans	2,947,069	1,458,301
Reserved for future issuance	6,916,631
Stock options outstanding [Member]
Class of Stock [Line Items]
Awards available for grant under all share-based compensation plans	2,490,168
Deferred stock units outstanding [Member]
Class of Stock [Line Items]
Awards available for grant under all share-based compensation plans	1,320,798
Market stock units outstanding [Member]
Class of Stock [Line Items]
Awards available for grant under all share-based compensation plans	158,596

Share-Based Compensation - Shar

Share-Based Compensation - Share-Based Compensation Awards Available for Grant or Issuance (Detail)	12 Months Ended
	Jun. 24, 2017shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Balance beginning	1,458,301
Additional shares authorized	2,952,121
Stock options granted	(356,107)
Deferred stock units granted	(922,784)
Market stock units granted	(105,800)
Market stock units performance adjustment	55,739
Purchases under employee stock purchase plan	(302,085)
Forfeited	355,855
Fungible Shares Ratio Adjustment	(188,171)
Balance ending	2,947,069
2010 Employee Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Balance beginning	330,134
Additional shares authorized	352,121
Purchases under employee stock purchase plan	(302,085)
Balance ending	380,170
2010 [Member] | Incentive Compensation Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Balance beginning	1,128,167
Additional shares authorized	2,600,000
Stock options granted	(356,107)
Deferred stock units granted	(922,784)
Market stock units granted	(105,800)
Market stock units performance adjustment	55,739
Forfeited	355,855
Fungible Shares Ratio Adjustment	(188,171)
Balance ending	2,566,899

Share-Based Compensation - Sh60

Share-Based Compensation - Share-Based Compensation and Related Tax Benefit Recognized in Consolidated Statements of Income (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total	$ 61.8	$ 56.8	$ 44.1
Income tax benefit on share-based compensation	16.1	14.7	12.5
Cost of Revenue [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total	2.2	1.8	1.4
Research and Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total	33.1	30.6	24.5
Selling, General, and Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total	$ 26.5	$ 24.4	$ 18.2

Share-Based Compensation - Stoc

Share-Based Compensation - Stock Options - Additional Information (Detail) - Stock option outstanding [Member] $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Jun. 24, 2017USD ($)$ / sharesshares
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 | $ / shares	$ 59.99
Percentage of stock option awards outstanding were vested	51.00%
Number of options vested and expected to vest | shares	2.4
Aggregate intrinsic value of fully vested options and options expected to vest | $	$ 40.9
Weighted average exercise price of fully vested options and options expected to vest | $ / shares	$ 48.89
Weighted average remaining contractual term of fully vested options and options expected to vest	3 years 5 months 9 days
Weighted average remaining contractual term for exercisable options	2 years 9 months 15 days
Unrecognized share-based compensation costs for stock options granted | $	$ 14.1
Unrecognized share-based compensation, period for recognition	1 year 11 months 16 days

Share Based Compensation - Bala

Share Based Compensation - Balance of Outstanding and Exercisable Stock Options (Detail) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 24, 2017USD ($)$ / sharesshares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock Option Awards Outstanding, Balance at June 30, 2016 | shares	2,711,542
Stock Option Awards Outstanding, Granted | shares	356,107
Stock Option Awards Outstanding, Exercised | shares	(404,738)
Stock Option Awards Outstanding, Forfeited | shares	(105,827)
Stock Option Awards Outstanding, Expired | shares	(66,916)
Stock Option Awards Outstanding, Balance at June 30, 2017 | shares	2,490,168
Stock Option Awards Outstanding, Exercisable at June 30, 2017 | shares	1,911,046
Weighted Average Exercise Price, Balance at June 30, 2016 | $ / shares	$ 46.69
Weighted Average Exercise Price, Granted | $ / shares	53.24
Weighted Average Exercise Price, Exercised | $ / shares	26.48
Weighted Average Exercise Price, Forfeited | $ / shares	70.81
Weighted Average Exercise Price, Expired | $ / shares	72.57
Weighted Average Exercise Price, Balance at June 30, 2017 | $ / shares	49.20
Weighted Average Exercise Price, Exercisable at June 30, 2017 | $ / shares	$ 44.28
Intrinsic Value, Balance at June 30, 2017 | $	$ 41.1
Intrinsic Value, Exercisable at June 30, 2017 | $	$ 39.1

Share-Based Compensation - Cash

Share-Based Compensation - Cash Received and Aggregate Intrinsic Value of Stock Options Exercised (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Cash received	$ 10.7	$ 16.6	$ 36.2
Aggregate intrinsic value	$ 12.3	$ 29.7	$ 69.9

Share-Based Compensation - Fair

Share-Based Compensation - Fair Value of Each Award Granted Under Stock Option Plans (Detail) - $ / shares	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Stock option outstanding [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Fair value per award	$ 21.08	$ 28.30	$ 27.19
Market stock units outstanding [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility	52.54%	45.57%	43.65%
Expected life in years	2 years 11 months 8 days	2 years 11 months 8 days	2 years 11 months 4 days
Risk-free interest rate	1.01%	0.92%	0.79%
Fair value per award	$ 67.51	$ 126.74	$ 66.48
Correlation coefficient	45.00%	42.00%	43.00%
Market stock units outstanding [Member] | SOX Index [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility	21.23%	19.65%	20.60%
Minimum [Member] | Stock option outstanding [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility	45.20%	40.40%	38.70%
Expected life in years	3 years 9 months 18 days	3 years 9 months 18 days	3 years 9 months 18 days
Risk-free interest rate	1.03%	1.22%	1.18%
Maximum [Member] | Stock option outstanding [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility	48.30%	44.20%	44.00%
Expected life in years	4 years 7 months 6 days	4 years 7 months 6 days	4 years 3 months 19 days
Risk-free interest rate	1.94%	1.72%	1.80%

Share-Based Compensation - Defe

Share-Based Compensation - Deferred Stock Units - Additional Information (Detail) - Deferred stock units outstanding [Member] - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
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	116,760
Shares valued withheld to meet statutory minimum tax withholding requirements	$ 6.3
Closing price of common stock used to calculate Aggregate intrinsic value of stock option outstanding	$ 59.99
Unrecognized share-based compensation cost for DSUs granted	$ 78.1
Unrecognized share-based compensation, period for recognition	2 years 1 month 3 days
Aggregate market value of DSUs	$ 24.3	$ 26.7	$ 23.8

Share-Based Compensation - Bala

Share-Based Compensation - Balance and Aggregate Intrinsic Value of Stock Units (Detail) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 24, 2017USD ($)$ / sharesshares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Unit Awards, Granted	105,800
Stock Unit Awards, Performance adjustment	(55,739)
Deferred stock units outstanding [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Unit Awards Outstanding, Balance at June 30, 2016	1,005,981
Stock Unit Awards, Granted	922,784
Stock Unit Awards, Delivered	(452,131)
Stock Unit Awards, Forfeited	(155,836)
Stock Unit Awards Outstanding, Balance at June 30, 2017	1,320,798
Aggregate Intrinsic Value, Balance at June 30, 2017 | $	$ 79.2
Weighted Average Grant Date Fair Value, Balance at June 30, 2016 | $ / shares	$ 77.93
Weighted Average Grant Date Fair Value, Granted | $ / shares	62.62
Weighted Average Grant Date Fair Value, Delivered | $ / shares	73.36
Weighted Average Grant Date Fair Value, Forfeited | $ / shares	75.14
Weighted Average Grant Date Fair Value, Balance at June 30, 2017 | $ / shares	$ 69.14
Market stock units outstanding [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Unit Awards Outstanding, Balance at June 30, 2016	146,150
Stock Unit Awards, Granted	105,800
Stock Unit Awards, Performance adjustment	(55,739)
Stock Unit Awards, Delivered	(10,339)
Stock Unit Awards, Forfeited	(27,276)
Stock Unit Awards Outstanding, Balance at June 30, 2017	158,596
Aggregate Intrinsic Value, Balance at June 30, 2017 | $	$ 9.5
Weighted Average Grant Date Fair Value, Balance at June 30, 2016 | $ / shares	$ 97.54
Weighted Average Grant Date Fair Value, Granted | $ / shares	67.51
Weighted Average Grant Date Fair Value, Delivered | $ / shares	60.62
Weighted Average Grant Date Fair Value, Forfeited | $ / shares	91.88
Weighted Average Grant Date Fair Value, Balance at June 30, 2017 | $ / shares	$ 82.88

Share-Based Compensation - Mark

Share-Based Compensation - Market Stock Units - Additional Information (Detail) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 24, 2017USD ($)$ / sharesshares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock unit awards, performance adjustment	55,739
Market stock units outstanding [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period of the underlying awards	3 years
Potential payout adjustment ratio	2.00%
Stock unit awards, performance adjustment	55,739
Shares withheld to meet statutory minimum tax withholding requirements	4,770
Shares valued withheld to meet statutory minimum tax withholding requirements | $	$ 0.2
Unrecognized share-based compensation cost | $	$ 10
Unrecognized share-based compensation, period for recognition	1 year
Market stock units outstanding [Member] | Fiscal 2014 MSU Grants [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
SOX Index TSR percentage points	27.00%
Percentage of targeted shares, MSU grants	45.00%
Stock unit awards, performance adjustment	10,339
Shares withheld to meet statutory minimum tax withholding requirements	4,770
Shares valued withheld to meet statutory minimum tax withholding requirements | $	$ 0.2
Market stock units outstanding [Member] | October 2015 MS Grants [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
SOX Index TSR percentage points	50.00%
Percentage of targeted shares, MSU grants	0.00%
Market stock units outstanding [Member] | October 2014 MSU Grants [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
SOX Index TSR percentage points	54.00%
Percentage of targeted shares, MSU grants	0.00%
Market stock units outstanding [Member] | Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Potential payout range	0.00%
Market stock units outstanding [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Potential payout range	200.00%
Market stock units outstanding [Member] | 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
Market stock units outstanding [Member] | 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%
Market stock units outstanding [Member] | 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
Market stock units outstanding [Member] | 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%
Market stock units outstanding [Member] | 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
Market stock units outstanding [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Potential payout range	100.00%
Closing price of common stock used to calculate Aggregate intrinsic value of stock option outstanding | $ / shares	$ 59.99

Share-Based Compensation - Empl

Share-Based Compensation - Employee Stock Purchase Plan - Additional Information (Detail) $ in Millions	12 Months Ended
	Jun. 24, 2017USD ($)
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	$ 9.4
Period over which share-based compensation is amortized duration	16 months

Share-Based Compensation - Sh69

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. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares purchased	302,085
Aggregate intrinsic value	$ 41.1
Employee Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares purchased	302,085	302,781	367,646
Weighted average purchase price	$ 46.74	$ 52.42	$ 35.11
Cash received	$ 14.1	$ 15.8	$ 12.9
Aggregate intrinsic value	$ 2.7	$ 7	$ 13.7

Share-Based Compensation - Fa70

Share-Based Compensation - Fair Value of Each Award Granted Under ESPP (Detail) - Employee Stock Purchase Plan [Member] - $ / shares	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected life in years	6 months
Fair value per award	$ 20.44	$ 24.52	$ 21.23
Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility	38.40%	37.40%	36.80%
Expected life in years	6 months	6 months	6 months
Risk-free interest rate	0.62%	0.33%	0.07%
Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility	54.90%	40.60%	47.90%
Expected life in years	2 years	1 year	2 years
Risk-free interest rate	1.20%	0.54%	0.54%

Employee Benefit Plans - Additi

Employee Benefit Plans - Additional Information (Detail) - USD ($)	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Compensation And Retirement Disclosure [Abstract]
Annual limit of employees contribution to defined contribution plan	$ 18,000
Annual limit of contribution for 50 years or older employees	$ 24,000
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	$ 2,300,000	$ 2,500,000	$ 2,300,000

Income Taxes - Tabular Disclosu

Income Taxes - Tabular Disclosure of Income Before Income Tax Between Domestic and Foreign Jurisdictions (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Income Loss From Operations Before Provision Benefit For Income Taxes [Line Items]
Income before provision for income taxes	$ 61.3	$ 75.6	$ 160.2
United States [Member]
Income Loss From Operations Before Provision Benefit For Income Taxes [Line Items]
Income before provision for income taxes	(10.1)	12.3	13.4
Foreign [Member]
Income Loss From Operations Before Provision Benefit For Income Taxes [Line Items]
Income before provision for income taxes	$ 71.4	$ 63.3	$ 146.8

Income Taxes - Provision for In

Income Taxes - Provision for Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Current tax expense
Federal	$ 9.6	$ 12.1	$ 12
Foreign	25.5	12.4	63
Current Income Tax Expense, Total	35.1	24.5	75
Deferred tax benefit
Federal	(10.6)	(7.5)	(3.7)
Foreign	(12.3)	(13.6)	(21.5)
Deferred Income Tax Benefit, Total	(22.9)	(21.1)	(25.2)
Provision for income taxes	$ 12.2	$ 3.4	$ 49.8

Income Taxes - Provision for 74

Income Taxes - Provision for Income Taxes Differs from Federal Statutory Rate (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Income Tax Disclosure [Abstract]
Provision at U.S. federal statutory rate	$ 21.5	$ 26.6	$ 56.1
Qualified stock options	5.5	5.1	2.7
Business credits	(3.6)	(10.3)	(4.7)
Foreign tax differential	(13.2)	(22.4)	(4.3)
Non-deductible portion of contingent consideration	0.9	0.9	(4.7)
Change in valuation allowance	(0.8)	(1.4)	(0.5)
Nondeductible amortization	1.6	4.4	2.7
Other differences	0.3	0.5	2.5
Provision for income taxes	$ 12.2	$ 3.4	$ 49.8

Income Taxes - Net Deferred Tax

Income Taxes - Net Deferred Tax Assets (Liabilities) (Detail) - USD ($) $ in Millions	Jun. 24, 2017	Jun. 25, 2016
Income Tax Disclosure [Abstract]
Non-current deferred tax assets	$ 23.1	$ 14.7
Non-current deferred tax liabilities		(9)
Net deferred tax assets	$ 23.1	$ 5.7

Income Taxes - Significant Comp

Income Taxes - Significant Components of Deferred Tax Assets (Liabilities) (Detail) - USD ($) $ in Millions	Jun. 24, 2017	Jun. 25, 2016
Deferred tax assets:
Investment writedowns	$ 1.8	$ 2.5
Inventory writedowns	7.4	6.5
Property and equipment	3	0.8
Accrued compensation	0.2	2.5
Deferred compensation	1.9	1.7
Share-based compensation	15.6	12.6
Business credit carryforward	19.2	16.2
Net operating loss carryforward	0.3	2.5
Other accruals	2	2.4
Deferred Tax Assets, Gross	51.4	47.7
Valuation allowance	(15.8)	(14.1)
Deferred Tax Assets, Net	35.6	33.6
Deferred tax liabilities:
Acquisition intangibles	(9.2)	(22.9)
Interest	(3.3)	(5)
Deferred tax liabilities, Total	(12.5)	(27.9)
Net deferred tax assets	$ 23.1	$ 5.7

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015	Jun. 28, 2014
Income Tax Disclosure [Line Items]
Valuation allowance	$ 15,800,000	$ 14,100,000
Net increase in valuation allowance	1,700,000
Undistributed earnings of foreign subsidiaries	699,500,000
Deferred tax liability associated with undistributed earnings of foreign subsidiaries	138,300,000
Tax credit carryforward, amount to be recorded to additional paid in capital when realized	32,200,000
Federal alternative minimum tax credit carryforward	1,600,000
Gross unrecognized tax benefits	15,200,000	13,400,000	$ 11,600,000	$ 10,200,000
Gross unrecognized tax benefits increased during the year	1,800,000
Unrecognized tax benefit, reduction of effective tax rate if recognized	8,800,000
Increase in interest and penalties accrued related to unrecognized tax benefits		300,000	$ 200,000
Decrease in interest and penalties accrued related to unrecognized tax benefits	200,000
Interest and penalties accrued related to unrecognized tax benefits	1,200,000	$ 1,400,000
Estimated decrease in unrecognized tax benefit in next 12 months	900,000
Estimated increase in unrecognized tax benefit in next 12 months	5,800,000
Federal [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards	300,000
Tax credit carryforward, amount	33,600,000
State and Local Jurisdiction [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards	$ 33,200,000
Net operating loss, beginning of expiration period	2,020
Tax credit carryforward, amount	$ 29,800,000

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Gross Unrecognized Tax Benefits (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Income Tax Disclosure [Abstract]
Beginning balance	$ 13.4	$ 11.6	$ 10.2
Increase in unrecognized tax benefits related to current year tax positions	2.5	1.6	2.3
Increase in unrecognized tax benefits related to prior year tax positions	0.1	1.1	0.3
Decrease due to statute expiration	(0.8)	(0.9)	(1.2)
Ending Balance	$ 15.2	$ 13.4	$ 11.6

Segment, Customers, and Geogr79

Segment, Customers, and Geographic Information - Additional Information (Detail) $ in Millions	12 Months Ended
	Jun. 24, 2017USD ($)SegmentProduct	Jun. 25, 2016USD ($)
Segment Reporting [Abstract]
Number of operating segments | Segment	1
Number of product | Product	2
Goodwill | $	$ 206.8	$ 206.8

Segment, Customers, and Geogr80

Segment, Customers, and Geographic Information - Net Revenue within Geographic Areas Based on Customers' Locations (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 1,718.2	$ 1,666.9	$ 1,703
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	844.8	518.7	504.2
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	426.5	651	698.5
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	231.4	249.1	223
South Korea [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	123.8	182.5	142.1
Taiwan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	66.4	61.1	127.2
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 25.3	$ 4.5	$ 8

Segment, Customers, and Geogr81

Segment, Customers, and Geographic Information - Net Revenue from External Customers (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Revenue from External Customer [Line Items]
Net revenue	$ 1,718.2	$ 1,666.9	$ 1,703
Mobile Product Applications [Member]
Revenue from External Customer [Line Items]
Net revenue	1,489	1,459.5	1,442.1
PC Product Applications [Member]
Revenue from External Customer [Line Items]
Net revenue	$ 229.2	$ 207.4	$ 260.9

Segment, Customers, and Geogr82

Segment, Customers, and Geographic Information - Long-Lived Assets within Geographic Areas (Detail) - USD ($) $ in Millions	Jun. 24, 2017	Jun. 25, 2016
Long Lived Assets By Geographical Areas [Line Items]
Long-lived assets	$ 421.5	$ 479.8
United States [Member]
Long Lived Assets By Geographical Areas [Line Items]
Long-lived assets	159.4	174.8
Asia/Pacific [Member]
Long Lived Assets By Geographical Areas [Line Items]
Long-lived assets	$ 262.1	$ 305

Segment, Customers, and Geogr83

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. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Customer A [Member]
Revenue, Major Customer [Line Items]
Concentration Risk, Percentage	24.00%	20.00%	16.00%
Customer B [Member]
Revenue, Major Customer [Line Items]
Concentration Risk, Percentage	19.00%	21.00%	18.00%
Customer C [Member]
Revenue, Major Customer [Line Items]
Concentration Risk, Percentage	10.00%
Customer D [Member]
Revenue, Major Customer [Line Items]
Concentration Risk, Percentage		15.00%	11.00%
Customer E [Member]
Revenue, Major Customer [Line Items]
Concentration Risk, Percentage			11.00%

Segment, Customers, and Geogr84

Segment, Customers, and Geographic Information - Major Customers' Revenue as a Percentage of Total Net Revenue (Parenthetical) (Detail)	12 Months Ended
	Jun. 24, 2017	Jun. 25, 2016	Jun. 27, 2015
Maximum [Member] | Sales Revenue, Net [Member] | Customer Concentration Risk [Member]
Revenue, Major Customer [Line Items]
Concentration Risk, Percentage	10.00%	10.00%	10.00%

Restructuring Activities - Addi

Restructuring Activities - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 26, 2015	Jun. 30, 2017	Jun. 24, 2017	Jun. 25, 2016
Restructuring Cost And Reserve [Line Items]
Restructuring costs	$ 1.9		$ 7.3	$ 8.6
Employee Severance and Benefits [Member]
Restructuring Cost And Reserve [Line Items]
Total restructuring charges		$ 11.7
Facility Consolidation and Related Charges [Member]
Restructuring Cost And Reserve [Line Items]
Total restructuring charges		$ 2.3

Restructuring Activities - Rest

Restructuring Activities - Restructuring Liability Activities (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Restructuring Cost And Reserve [Line Items]
Beginning Balance	$ 6.7
Additional accruals	7.3	$ 6.7
Cash payments	(12.6)
Non-cash settlements	(0.8)
Ending Balance	0.6	6.7
Employee Severance and Benefits [Member]
Restructuring Cost And Reserve [Line Items]
Beginning Balance	6.7
Additional accruals	5	6.7
Cash payments	(11.7)
Ending Balance		$ 6.7
Facility Consolidation and Related Charges [Member]
Restructuring Cost And Reserve [Line Items]
Additional accruals	2.3
Cash payments	(0.9)
Non-cash settlements	(0.8)
Ending Balance	$ 0.6

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail)	Jul. 25, 2017USD ($)shares	Jun. 26, 2017USD ($)shares	Jun. 20, 2017USD ($)Day$ / sharesshares	Jun. 11, 2017USD ($)	Jun. 26, 2016USD ($)	Jun. 24, 2017USD ($)shares	Jul. 31, 2017USD ($)	Apr. 06, 2017USD ($)	Jun. 25, 2016USD ($)shares	Oct. 20, 2015USD ($)	Sep. 30, 2014USD ($)
Subsequent Event [Line Items]
Number of shares of common stock purchased | shares						60,579,911			59,532,148
Purchase of common stock, value						$ 100,000			$ 100,000
Credit Agreement [Member] | Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Line of credit facility amount								$ 450,000,000		$ 250,000,000	$ 150,000,000
Purchase Agreement [Member] | 0.50% Convertible Senior Notes due 2022 [Member] | Wells Fargo Securities, LLC [Member]
Subsequent Event [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 convertiable debt					$ 514,500,000
Debt Instrument offering completed date			Jun. 26, 2016
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
Subsequent Event [Member] | Credit Agreement [Member] | Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Line of credit facility amount							$ 250,000,000
Subsequent Event [Member] | Purchase Agreement [Member] | 0.50% Convertible Senior Notes due 2022 [Member] | Wells Fargo Securities, LLC [Member]
Subsequent Event [Line Items]
Proceeds from the notes to pay balance due on revolving credit facility under credit agreement and term loan, plus interest due		$ 220,000,000
Number of shares of common stock purchased | shares		1,698,400
Purchase of common stock, value		$ 93,600,000
Conexant Systems, LLC [Member]
Subsequent Event [Line Items]
Acquisition agreement date						Jun. 11, 2017
Acquisition closing effective date						Jul. 25, 2017
Conexant Systems, LLC [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Acquired outstanding common and preferred shares and voting interest	100.00%
Purchase price of acquisition	$ 305,800,000
Issuance of common stock for acquisition, shares | shares	726,666
Purchase price held in escrow	$ 16,800,000
Marvell Technology Group Ltd [Member] | Asset Purchase Agreement [Member]
Subsequent Event [Line Items]
Acquisition agreement date						Jun. 11, 2017
Purchase price of acquisition				$ 95,000,000
Expected acquisition closing effective date						first quarter of fiscal 2018