Wolfspeed (WOLF) 10-Q 22 Oct 14 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Sep. 28, 2014	Oct. 15, 2014
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'CREE INC	'
Entity Central Index Key	'0000895419	'
Current Fiscal Year End Date	'--06-28	'
Entity Filer Category	'Large Accelerated Filer	'
Document Type	'10-Q	'
Document Period End Date	28-Sep-14	'
Document Fiscal Year Focus	'2015	'
Document Fiscal Period Focus	'Q1	'
Amendment Flag	'false	'
Entity Common Stock, Shares Outstanding	'	119,445,374
Entity Well-known Seasoned Issuer	'Yes	'
Entity Voluntary Filers	'No	'
Entity Current Reporting Status	'Yes	'

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Sep. 28, 2014	Jun. 29, 2014
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$196,300	$286,824
Short-term investments	908,543	875,642
Total cash, cash equivalents and short-term investments	1,104,843	1,162,466
Accounts receivable, net	236,992	225,160
Inventories	310,780	284,780
Deferred income taxes	29,695	29,414
Prepaid expenses and other current assets	74,371	72,071
Total current assets	1,756,681	1,773,891
Property and equipment, net	635,341	605,713
Goodwill	616,345	616,345
Intangible assets, net	332,123	336,423
Other assets	12,162	11,997
Total assets	3,352,652	3,344,369
Current liabilities:	'	'
Accounts payable, trade	198,631	202,294
Accrued salaries and wages	43,268	50,527
Income taxes payable	11,850	14,848
Other current liabilities	39,129	38,986
Total current liabilities	292,878	306,655
Long-term liabilities:	'	'
Long-term debt	45,000	0
Deferred income taxes	15,828	12,173
Other long-term liabilities	29,082	35,395
Total long-term liabilities	89,910	47,568
Commitments and contingencies (Note 11)	'	'
Shareholders' equity:	'	'
Preferred stock, par value $0.01; 3,000 shares authorized at September 28, 2014 and June 29, 2014; none issued and outstanding	0	0
Common stock, par value $0.00125; 200,000 shares authorized at September 28, 2014 and June 29, 2014; 119,421 and 120,114 shares issued and outstanding at September 28, 2014 and June 29, 2014, respectively	148	149
Additional paid-in-capital	2,214,601	2,190,011
Accumulated other comprehensive income, net of taxes	9,727	11,405
Retained earnings	745,388	788,581
Total shareholders’ equity	2,969,864	2,990,146
Total liabilities and shareholders’ equity	$3,352,652	$3,344,369

Consolidated_Balance_Sheets_Co

Consolidated Balance Sheets Consolidation Balance Sheets (Parenthetical) (USD $)	Sep. 28, 2014	Jun. 29, 2014
In Thousands, except Per Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	3,000	3,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.00	$0.00
Common stock, shares authorized	200,000	200,000
Common stock, shares issued	119,421	120,114
Common stock, shares outstanding	119,421	120,114

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013
Income Statement [Abstract]	'	'
Revenue, net	$427,672	$391,006
Cost of revenue, net	291,852	240,249
Gross profit	135,820	150,757
Operating expenses:	'	'
Research and development	46,725	41,743
Sales, general and administrative	69,692	64,278
Amortization or impairment of acquisition-related intangibles	6,499	7,287
Loss on disposal or impairment of long-lived assets	1,447	657
Total operating expenses	124,363	113,965
Operating income	11,457	36,792
Non-operating income, net	2,904	2,818
Income before income taxes	14,361	39,610
Income tax expense	3,231	9,113
Net income	$11,130	$30,497
Earnings per share:	'	'
Basic	$0.09	$0.26
Diluted	$0.09	$0.25
Weighted average shares used in per share calculation:	'	'
Basic	119,605	119,564
Diluted	121,143	122,364

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013
Statement of Comprehensive Income [Abstract]	'	'
Net income	$11,130	$30,497
Currency translation (loss) gain	-1,167	259
Net unrealized (loss)/gain on available-for-sale securities, net of tax benefit/(expense) of $339 and $(782), respectively	-511	1,263
Other comprehensive (loss) income	-1,678	1,522
Comprehensive income	$9,452	$32,019

Consolidated_Statements_of_Com1

Consolidated Statements of Comprehensive Income Consolidated Statements of Comprehensive Income (Parenthetical) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013
Statement of Comprehensive Income [Abstract]	'	'
Tax benefit/(expense) on net unrealized (loss)/gain on available-for-sale securities	$339	($782)

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013
Cash flows from operating activities:	'	'
Net income	$11,130	$30,497
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	43,335	39,481
Stock-based compensation	16,759	14,578
Excess tax benefit from stock-based payment arrangements	-1,448	-5,666
Loss on disposal or impairment of long-lived assets	1,447	657
Amortization of premium/discount on investments	2,412	2,435
Changes in operating assets and liabilities:	'	'
Accounts receivable, net	-12,018	-16,613
Inventories	-25,674	-19,782
Prepaid expenses and other assets	-3,176	-36,998
Accounts payable, trade	-2,164	22,960
Accrued salaries and wages and other liabilities	-17,319	37,687
Net cash provided by operating activities	13,284	69,236
Cash flows from investing activities:	'	'
Purchases of property and equipment	-63,446	-33,680
Purchases of short-term investments	-171,067	-196,312
Proceeds from maturities of short-term investments	126,958	116,510
Proceeds from sale of property and equipment	43	0
Proceeds from sale of short-term investments	4,667	12,295
Purchases of patent and licensing rights	-4,806	-4,769
Net cash used in investing activities	-107,651	-105,956
Cash flows from financing activities:	'	'
Proceeds from long-term debt borrowings	60,000	0
Payments on long-term debt borrowings	-15,000	0
Net proceeds from issuance of common stock	12,109	28,741
Excess tax benefit from stock-based payment arrangements	1,448	5,666
Repurchases of common stock	-54,325	0
Net cash provided by financing activities	4,232	34,407
Effects of foreign exchange changes on cash and cash equivalents	-389	126
Net decrease in cash and cash equivalents	-90,524	-2,187
Cash and cash equivalents:	'	'
Beginning of period	286,824	190,069
End of period	$196,300	$187,882

Basis_of_Presentation

Basis of Presentation	3 Months Ended
	Sep. 28, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	Overview
	Cree, Inc. (the Company) is a leading innovator of lighting-class light emitting diode (LED) products, lighting products and semiconductor products for power and radio-frequency (RF) applications. The Company's products are targeted for applications such as indoor and outdoor lighting, video displays, transportation, electronic signs and signals, power supplies, inverters and wireless systems.
	The Company's LED products consist of LED components, LED chips and silicon carbide (SiC) materials. The Company's success in selling LED products depends upon its ability to offer innovative products and to enable its customers to develop and market LED-based products that successfully compete against other LED-based products and drive LED adoption against traditional lighting products.
	The Company's lighting products primarily consist of LED lighting systems and bulbs. The Company designs, manufactures and sells lighting fixtures and lamps for the commercial, industrial and consumer markets.
	In addition, the Company develops, manufactures and sells power and RF devices. The Company's power products are made from SiC and provide increased efficiency, faster switching speeds and reduced system size and weight over comparable silicon-based power devices. The Company's RF devices are made from gallium nitride (GaN) and provide improved efficiency, bandwidth and frequency of operation as compared to silicon or gallium arsenide (GaAs).
	The majority of the Company's products are manufactured at its production facilities located in North Carolina, Wisconsin and China. The Company also uses contract manufacturers for certain aspects of product fabrication, assembly and packaging. The Company operates research and development facilities in North Carolina, California, Wisconsin, India and China (including Hong Kong).
	Cree, Inc. is a North Carolina corporation established in 1987 and is headquartered in Durham, North Carolina.
	The Company's three reportable segments are:
	•	LED Products
	•	Lighting Products
	•	Power and RF Products
	For financial results by reportable segment, please refer to Note 12, "Reportable Segments."
	Basis of Presentation
	The consolidated balance sheet at September 28, 2014, the consolidated statements of income for the three months ended September 28, 2014 and September 29, 2013, the consolidated statements of comprehensive income for the three months ended September 28, 2014 and September 29, 2013, and the consolidated statements of cash flows for the three months ended September 28, 2014 and September 29, 2013 (collectively, the consolidated financial statements) have been prepared by the Company and have not been audited. In the opinion of management, all normal and recurring adjustments necessary to present fairly the consolidated financial position, results of operations and cash flows at September 28, 2014, and for all periods presented, have been made. All intercompany accounts and transactions have been eliminated. The consolidated balance sheet at June 29, 2014 has been derived from the audited financial statements as of that date.
	These financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP) for interim information and with the instructions to Form 10-Q and Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for annual financial statements. These financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended June 29, 2014 (fiscal 2014). The results of operations for the three months ended September 28, 2014 are not necessarily indicative of the operating results that may be attained for the entire fiscal year ending June 28, 2015 (fiscal 2015).
	The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue and expenses, and the disclosure of contingent assets and liabilities. Actual amounts could differ materially from those estimates.
	Certain fiscal 2014 amounts in the accompanying consolidated financial statements have been reclassified to conform to the fiscal 2015 presentation. These reclassifications had no effect on previously reported consolidated net income or shareholders’ equity.
	New Accounting Standards
	Revenue from Contracts with Customers
	In May 2014, the FASB issued Accounting Standards Update (ASU) No. 2014-09: Revenue from Contracts with Customers (Topic 606). The ASU establishes a principles-based approach for accounting for revenue arising from contracts with customers and supersedes existing revenue recognition guidance. The ASU provides that an entity should apply a five-step approach for recognizing revenue, including (1) identify the contract with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract; and (5) recognize revenue when, or as, the entity satisfies a performance obligation. Also, the entity must provide various disclosures concerning the nature, amount and timing of revenue and cash flows arising from contracts with customers. The effective date will be the first quarter of the Company's fiscal year ending June 24, 2018, using one of two retrospective application methods. The Company is currently analyzing the impact of this new accounting guidance.

Financial_Statement_Details

Financial Statement Details	3 Months Ended
	Sep. 28, 2014
Financial Statement Details [Abstract]	'
Financial Statement Details	'
	Financial Statement Details
	Accounts Receivable, net
	The following table summarizes the components of accounts receivable, net (in thousands):
		September 28, 2014			June 29, 2014
	Billed trade receivables		$271,459			$255,374
	Unbilled contract receivables	1,727			1,557
		273,186			256,931
	Allowance for sales returns, discounts and other incentives	(33,473		)	(29,010		)
	Allowance for bad debts	(2,721		)	(2,761		)
	Accounts receivable, net		$236,992			$225,160
	Inventories
	The following table summarizes the components of inventories (in thousands):
		September 28, 2014			June 29, 2014
	Raw material		$93,883			$95,594
	Work-in-progress	104,969			92,889
	Finished goods	111,928			96,297
	Inventories		$310,780			$284,780
	Other Current Liabilities
	The following table summarizes the components of other current liabilities (in thousands):
		September 28, 2014			June 29, 2014
	Accrued taxes		$19,256			$19,835
	Accrued professional fees	6,496			5,373
	Accrued warranty	6,397			5,842
	Accrued other	6,980			7,936
	Other current liabilities		$39,129			$38,986
	Accumulated Other Comprehensive Income, net of taxes
	The following table summarizes the components of accumulated other comprehensive income, net of taxes (in thousands):
		September 28, 2014			June 29, 2014
	Currency translation gain		$7,382			$8,549
	Net unrealized gain on available-for-sale securities	2,345			2,856
	Accumulated other comprehensive income, net of taxes		$9,727			$11,405
	Non-Operating Income, net
	The following table summarizes the components of non-operating income, net (in thousands):
		Three Months Ended
		September 28, 2014			September 29, 2013
	Foreign currency (loss) gain, net		($231	)		$264
	Gain on sale of investments, net	2			10
	Interest income, net	3,032			2,341
	Other, net	101			203
	Non-operating income, net		$2,904			$2,818
	Reclassifications Out of Accumulated Other Comprehensive Income, net of taxes
	The following table summarizes the amounts reclassified out of accumulated other comprehensive income, net of taxes (in thousands):
	Accumulated Other Comprehensive Income Component		Amount Reclassified from Accumulated Other Comprehensive Income					Affected Line Item in the Consolidated Statements of Income
			Three Months Ended
			September 28, 2014			September 29, 2013
	Net unrealized gain on available-for-sale securities, net of taxes			$2			$10	Non-operating income, net
			2			10		Income before income taxes
			—			2		Income tax expense
				$2			$8	Net income

Investments

Investments	3 Months Ended
	Sep. 28, 2014
Investments, Debt and Equity Securities [Abstract]	'
Investments	'
	Investments
	Investments consist of municipal bonds, corporate bonds, U.S. agency securities, non-U.S. certificates of deposit and non-U.S. government securities. All investments are short-term and classified as available-for-sale.
	The following tables summarize short-term investments (in thousands):
			September 28, 2014
			Amortized			Gross Unrealized				Gross				Estimated Fair
			Cost			Gains				Unrealized				Value
										Losses
	Municipal bonds			$295,437			$2,405				($24	)			$297,818
	Corporate bonds		214,055			1,690				(419		)		215,326
	U.S. agency securities		18,950			129				—				19,079
	Non-U.S. certificates of deposit		373,303			—				—				373,303
	Non-U.S. government securities		2,999			18				—				3,017
	Total short-term investments			$904,744			$4,242				($443	)			$908,543
			June 29, 2014
			Amortized			Gross				Gross				Estimated Fair
			Cost			Unrealized				Unrealized				Value
						Gains				Losses
	Municipal bonds			$291,869			$2,323				($12	)			$294,180
	Corporate bonds		200,177			2,283				(114		)		202,346
	U.S. agency securities		18,994			141				—				19,135
	Non-U.S. certificates of deposit		352,928			—				—				352,928
	Non-U.S. government securities		7,025			28				—				7,053
	Total short-term investments			$870,993			$4,775				($126	)			$875,642
	The following tables present the gross unrealized losses and estimated fair value of the Company's short-term investments, aggregated by investment type and the length of time that individual securities have been in a continuous unrealized loss position (in thousands, except numbers of securities):
			September 28, 2014
			Less than 12 Months							Greater than 12 Months								Total
			Fair Value			Unrealized Loss				Fair Value				Unrealized Loss				Fair Value		Unrealized Loss
	Municipal bonds			$10,125			($21	)			$1,516				($3	)			$11,641		($24	)
	Corporate bonds		49,004			(265		)		12,935				(154		)		61,939		(419		)
	U.S. agency securities		—			—				—				—				—		—
	Non-U.S. certificates of deposit		—			—				—				—				—		—
	Non-U.S. government securities		—			—				—				—				—		—
	Total			$59,129			($286	)			$14,451				($157	)			$73,580		($443	)
	Number of securities with an unrealized loss					32								7						39
			June 29, 2014
			Less than 12 Months							Greater than 12 Months								Total
			Fair Value			Unrealized Loss				Fair Value				Unrealized Loss				Fair Value		Unrealized Loss
	Municipal bonds			$7,906			($8	)			$1,520				($4	)			$9,426		($12	)
	Corporate bonds		15,696			(31		)		13,049				(83		)		28,745		(114		)
	U.S. agency securities		—			—				—				—				—		—
	Non-U.S. certificates of deposit		—			—				—				—				—		—
	Non-U.S. government securities		—			—				—				—				—		—
	Total			$23,602			($39	)			$14,569				($87	)			$38,171		($126	)
	Number of securities with an unrealized loss					13								7						20
	The Company utilizes specific identification in computing realized gains and losses on the sale of investments. Realized gains from the sale of investments for the three months ended September 28, 2014 of $2 thousand were included in Non-operating income, net in the Consolidated Statements of Income and unrealized gains and losses are included as a separate component of equity, net of tax, unless the loss is determined to be other-than-temporary.
	The Company evaluates its investments for possible impairment or a decline in fair value below cost basis that is deemed to be other-than-temporary on a periodic basis. It considers such factors as the length of time and extent to which the fair value has been below the cost basis, the financial condition of the investee, and its ability and intent to hold the investment for a period of time that may be sufficient for an anticipated full recovery in market value. Accordingly, the Company considered declines in its investments to be temporary in nature, and did not consider its securities to be impaired as of September 28, 2014 and June 29, 2014.
	The contractual maturities of short-term investments as of September 28, 2014 were as follows (in thousands):
		Within One			After One,				After Five,				After Ten				Total
		Year			Within Five				Within Ten				Years
					Years				Years
	Municipal bonds		$58,114			$210,550				$29,154				$—				$297,818
	Corporate bonds	21,052			156,156				38,118				—				215,326
	U.S. agency securities	6,571			12,508				—				—				19,079
	Non-U.S. certificates of deposit	373,303			—				—				—				373,303
	Non-U.S. government securities	—			3,017				—				—				3,017
	Total short-term investments		$459,040			$382,231				$67,272				$—				$908,543

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	3 Months Ended
	Sep. 28, 2014
Fair Value Disclosures [Abstract]	'
Fair Value of Financial Instruments	'
	Fair Value of Financial Instruments
	Under U.S. GAAP, fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (i.e., the exit price) in an orderly transaction between market participants at the measurement date. In determining fair value, the Company uses various valuation approaches, including quoted market prices and discounted cash flows. U.S. GAAP also establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are obtained from independent sources and can be validated by a third party, whereas unobservable inputs reflect assumptions regarding what a third party would use in pricing an asset or liability. The fair value hierarchy is categorized into three levels based on the reliability of inputs as follows:
	•	Level 1 - Valuations based on quoted prices in active markets for identical instruments that the Company is able to access. Since valuations are based on quoted prices that are readily and regularly available in an active market, valuation of these products does not entail a significant degree of judgment.
	•	Level 2 - Valuations based on quoted prices in active markets for instruments that are similar, or quoted prices in markets that are not active for identical or similar instruments, and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets.
	•	Level 3 - Valuations based on inputs that are unobservable and significant to the overall fair value measurement.
	The financial assets for which the Company performs recurring fair value remeasurements are cash equivalents and short-term investments. As of September 28, 2014, financial assets utilizing Level 1 inputs included money market funds, and financial assets utilizing Level 2 inputs included municipal bonds, corporate bonds, U.S. agency securities, non-U.S. certificates of deposit and non-U.S. government securities. Level 2 assets are valued using a third-party pricing service's consensus price, which is a weighted average price based on multiple sources. These sources determine prices utilizing market income models which factor in, where applicable, transactions of similar assets in active markets, transactions of identical assets in infrequent markets, interest rates, bond or credit default swap spreads and volatility. The Company did not have any financial assets requiring the use of Level 3 inputs as of September 28, 2014. There were no transfers between Level 1 and Level 2 during the three months ended September 28, 2014.
	The following table sets forth financial instruments carried at fair value within the U.S. GAAP hierarchy (in thousands):
		September 28, 2014								June 29, 2014
		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
	Assets:
	Cash equivalents:
	Non-U.S. certificates of deposit		$—		$165		$—		$165		$—		$—		$—		$—
	Money market funds	18,714		—		—		18,714		40,031		—		—		40,031
	Total cash equivalents	18,714		165		—		18,879		40,031		—		—		40,031
	Short-term investments:
	Municipal bonds	—		297,818		—		297,818		—		294,180		—		294,180
	Corporate bonds	—		215,326		—		215,326		—		202,346		—		202,346
	U.S. agency securities	—		19,079		—		19,079		—		19,135		—		19,135
	Non-U.S. certificates of deposit	—		373,303		—		373,303		—		352,928		—		352,928
	Non-U.S. government securities	—		3,017		—		3,017		—		7,053		—		7,053
	Total short-term investments	—		908,543		—		908,543		—		875,642		—		875,642
	Total assets		$18,714		$908,708		$—		$927,422		$40,031		$875,642		$—		$915,673

Intangible_Assets

Intangible Assets	3 Months Ended
	Sep. 28, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Intangible Assets	'
	Intangible Assets
	The following table presents the components of intangible assets, net (in thousands):
		September 28, 2014							June 29, 2014
		Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
	Intangible assets with finite lives:
	Customer relationships		$137,440		($68,315	)		$69,125		$137,440		($66,970	)		$70,470
	Developed technology	162,760		(77,581		)	85,179		162,760		(72,921		)	89,839
	Non-compete agreements	10,244		(6,487		)	3,757		10,244		(5,997		)	4,247
	Trade names, finite-lived	520		(520		)	—		520		(516		)	4
	Patent and licensing rights	139,070		(44,688		)	94,382		134,607		(42,424		)	92,183
	Total intangible assets with finite lives	450,034		(197,591		)	252,443		445,571		(188,828		)	256,743
	Trade names, indefinite-lived	79,680					79,680		79,680					79,680
	Total intangible assets		$529,714		($197,591	)		$332,123		$525,251		($188,828	)		$336,423
	Total amortization of finite-lived intangible assets was $8.9 million and $9.4 million during the three months ended September 28, 2014 and September 29, 2013, respectively.
	Total future amortization expense of finite-lived intangible assets is estimated to be as follows (in thousands):
	Fiscal Year Ending
	June 28, 2015 (remainder of fiscal 2015)		$26,021
	June 26, 2016	34,466
	June 25, 2017	32,463
	June 24, 2018	31,278
	June 30, 2019	18,730
	Thereafter	109,485
	Total future amortization expense		$252,443

Longterm_Debt

Long-term Debt	3 Months Ended
	Sep. 28, 2014
Long-term Debt, Unclassified [Abstract]	'
Long-term Debt	'
	Long-term Debt
	The Company has a $150 million unsecured revolving line of credit under which the Company may borrow, repay and reborrow loans from time to time prior to its scheduled maturity date of August 12, 2017.
	The Company classifies balances outstanding under this agreement as Long-term debt in the Consolidated Balance Sheets. At September 28, 2014, the Company had $45.0 million outstanding under the line of credit and $105.0 million available for borrowing. The average interest rate and the commitment fee percentage for the three months ended September 28, 2014 were 0.85% and 0.08%, respectively. The Company was in compliance with all covenants in the line of credit at September 28, 2014.

Shareholders_Equity

Shareholders' Equity	3 Months Ended
	Sep. 28, 2014
Stockholders' Equity Note [Abstract]	'
Shareholders' Equity	'
	Shareholders’ Equity
	As of September 28, 2014, pursuant to an approval by the Board of Directors to an increase in the amount of the stock repurchase program, the Company is authorized to repurchase shares of its common stock having an aggregate purchase price not exceeding $300 million for all purchases from June 20, 2013 through the expiration of the program on June 28, 2015. During the three months ended September 28, 2014, the Company repurchased $54.3 million of common stock under the stock repurchase program.

Earnings_Per_Share

Earnings Per Share	3 Months Ended
	Sep. 28, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	Earnings Per Share
	The following table presents the computation of basic earnings per share (in thousands, except per share amounts):
		Three Months Ended
		September 28,		September 29,
		2014		2013
	Basic:
	Net income		$11,130		$30,497
	Weighted average common shares	119,605		119,564
	Basic earnings per share		$0.09		$0.26
	The following computation reconciles the differences between the basic and diluted earnings per share presentations (in thousands, except per share amounts):
		Three Months Ended
		September 28,		September 29,
		2014		2013
	Diluted:
	Net income		$11,130		$30,497
	Weighted average common shares - basic	119,605		119,564
	Dilutive effect of stock options, nonvested shares and Employee Stock Purchase Plan purchase rights	1,538		2,800
	Weighted average common shares - diluted	121,143		122,364
	Diluted earnings per share		$0.09		$0.25
	Potential common shares that would have the effect of increasing diluted earnings per share are considered to be anti-dilutive and as such, these shares are not included in calculating diluted earnings per share. For the three months ended September 28, 2014 and September 29, 2013, there were 5.2 million and 1.1 million, respectively, of potential common shares not included in the calculation of diluted earnings per share because their effect was anti-dilutive.

StockBased_Compensation

Stock-Based Compensation	3 Months Ended
	Sep. 28, 2014
Share-based Compensation [Abstract]	'
Stock-Based Compensation	'
	Stock-Based Compensation
	Overview of Employee Stock-Based Compensation Plans
	The Company currently has one equity-based compensation plan, the 2013 Long-Term Incentive Compensation Plan (2013 LTIP), from which stock-based compensation awards can be granted to employees and directors. The 2013 LTIP provides for awards in the form of incentive stock options, non-qualified stock options, stock appreciation rights, restricted stock, restricted stock units, performance shares, performance units and other awards. The Company has other equity-based compensation plans that have been terminated so that no future grants can be made under those plans, but under which options, restricted stock and restricted stock units are currently outstanding.
	Prior to fiscal 2013, the Company’s stock-based awards had been service-based only.  Beginning in fiscal 2013, the Company began issuing grants of awards that also contain performance-based conditions.  Performance-based conditions are generally tied to future financial and/or operating performance of the Company. The compensation expense with respect to performance-based grants is recognized if the Company believes it is probable that the performance condition will be achieved. The Company reassesses the probability of the achievement of the performance condition at each reporting period, and adjusts the compensation expense for subsequent changes in the estimate or actual outcome. As with non-performance based awards, compensation expense is recognized over the vesting period. The vesting period runs from the date of grant to the expected date that the performance objective is likely to be achieved.
	The Company also has an Employee Stock Purchase Plan (ESPP) that provides employees with the opportunity to purchase common stock at a discount. The ESPP limits employee contributions to 15% of each employee’s compensation (as defined in the plan) and originally allowed employees to purchase shares at a 15% discount to the fair market value of common stock on the purchase date two times per year. The ESPP was amended in the second quarter of fiscal 2012 to increase the six-month participation period to a twelve-month participation period, divided into two equal six-month purchase periods, and to provide for a look-back feature. At the end of each six-month period in April and October, employees participating in the plan purchase the Company’s common stock through the ESPP at a 15% discount to the fair market value of the common stock on the first day of the twelve-month participation period or the purchase date, whichever is lower. The plan amendment also provides for an automatic reset feature to start participants on a new twelve-month participation period if the fair market value of common stock declines during the first six-month purchase period.
	Stock Option Awards
	The following table summarizes option activity as of September 28, 2014 and changes during the three months then ended (number of shares in thousands):
		Number of Shares		Weighted Average Exercise Price
	Outstanding at June 29, 2014	8,922			$41.85
	Granted	3,171		45.29
	Exercised	(421	)	29.18
	Forfeited or expired	(103	)	51.19
	Outstanding at September 28, 2014	11,569			$43.17
	Restricted Stock Awards and Units
	A summary of nonvested restricted stock awards (RSAs) and restricted stock unit awards (RSUs) outstanding as of September 28, 2014, and changes during the three months then ended is as follows (number of awards and units in thousands):
		Number of		Weighted Average
		RSAs/RSUs		Grant-Date Fair Value
	Nonvested at June 29, 2014	860			$46.81
	Granted	417		45.38
	Vested	(346	)	46.11
	Forfeited	(4	)	59.47
	Nonvested at September 28, 2014	927			$46.37
	Stock-Based Compensation Valuation and Expense
	The Company accounts for its employee stock-based compensation plans using the fair value method. The fair value method requires the Company to estimate the grant-date fair value of its stock-based awards and amortize this fair value to compensation expense over the requisite service period or vesting term.
	The Company currently uses the Black-Scholes option-pricing model to estimate the fair value of the Company’s stock option and ESPP awards. The determination of the fair value of stock-based payment awards on the date of grant using an option-pricing model is affected by the Company’s stock price as well as assumptions regarding a number of complex and subjective variables. These variables include the expected stock price volatility over the term of the awards, actual and projected employee stock option exercise behaviors, the risk-free interest rate and expected dividends. Due to the inherent limitations of option-valuation models, future events that are unpredictable and the estimation process utilized in determining the valuation of the stock-based awards, the ultimate value realized by award holders may vary significantly from the amounts expensed in the Company’s financial statements.
	For RSAs and RSUs, the grant-date fair value is based upon the market price of the Company’s common stock on the date of the grant. This fair value is then amortized to compensation expense over the requisite service period or vesting term.
	Stock-based compensation expense is recognized net of estimated forfeitures such that expense is recognized only for those stock-based awards that are expected to vest. A forfeiture rate is estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from initial estimates.
	Total stock-based compensation expense was as follows (in thousands):
		Three Months Ended
		September 28,			September 29,
		2014			2013
	Income Statement Classification:
	Cost of revenue, net		$2,905			$2,379
	Research and development	4,471			3,712
	Sales, general and administrative	9,383			8,487
	Total stock-based compensation expense		$16,759			$14,578

Income_Taxes

Income Taxes	3 Months Ended
	Sep. 28, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	The variation between the Company's effective income tax rate and the U.S. statutory rate of 35% is due to a percentage of the Company's projected income for the full year being derived from international locations with lower tax rates than the U.S. and the impact of tax credits available in the current year. A change in the mix of pretax income of the Company's various tax jurisdictions can have a material impact on the Company's periodic effective tax rate.
	U.S. GAAP requires a two-step approach to recognizing and measuring uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates that it is more likely than not that the position will be sustained on audit, including resolution of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is cumulatively more than 50% likely to be realized upon ultimate settlement.
	As of June 29, 2014, the Company's liability for unrecognized tax benefits was $18.4 million. During the three months ended September 28, 2014, there were no changes to the amount of unrecognized tax benefits. As a result, the total liability for unrecognized tax benefits as of September 28, 2014 was $18.4 million. If any portion of this $18.4 million is recognized, the Company will then include that portion in the computation of its effective tax rate. Although the ultimate timing of the resolution and/or closure of audits is highly uncertain, the Company believes it is reasonably possible that approximately $0.2 million of gross unrecognized tax benefits will change in the next 12 months as a result of pending audit settlements or statute requirements.
	The Company files U.S. federal, U.S. state and foreign tax returns. For U.S. federal purposes, the Company is generally no longer subject to tax examinations for fiscal years prior to 2011. For U.S. state tax returns, the Company is generally no longer subject to tax examinations for fiscal years prior to 2010. For foreign purposes, the Company is generally no longer subject to tax examinations for tax periods 2004 and prior. Certain carryforward tax attributes generated in prior years remain subject to examination and adjustment. The Company is currently under audit by the French Tax Administration for the fiscal year ended June 26, 2011 (fiscal 2011) through the fiscal year ended June 29, 2014 (fiscal 2014).

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Sep. 28, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	Warranties
	The following table summarizes the changes in the Company's product warranty liabilities (in thousands):
	Balance at June 29, 2014		$6,822
	Warranties accrued in current period	1,952
	Expenditures	(1,574		)
	Balance at September 28, 2014		$7,200
	Product warranties are estimated and recognized at the time the Company recognizes revenue. The warranty periods range from 90 days to 10 years. The Company accrues warranty liabilities at the time of sale, based on historical and projected incident rates and expected future warranty costs. The warranty reserves, which are primarily related to Lighting Products, are evaluated on a quarterly basis based on various factors including historical warranty claims, assumptions about the frequency of warranty claims, and assumptions about the frequency of product failures derived from quality testing, field monitoring and the Company's reliability estimates. As of September 28, 2014, $0.8 million of the Company's product warranty liabilities were classified as long-term.
	Litigation
	The Company is currently a party to various legal proceedings.  While management presently believes that the ultimate outcome of such proceedings, individually and in the aggregate, will not materially harm the Company’s financial position, cash flows, or overall trends in results of operations, legal proceedings are subject to inherent uncertainties, and unfavorable rulings could occur.  An unfavorable ruling could include money damages or, in matters for which injunctive relief or other conduct remedies may be sought, an injunction prohibiting the Company from selling one or more products at all or in particular ways.  Were unfavorable final outcomes to occur, there exists the possibility of a material adverse impact on the Company’s business, results of operation, financial position and overall trends.  The outcomes in these matters are not reasonably estimable.

Reportable_Segments

Reportable Segments	3 Months Ended
	Sep. 28, 2014
Segment Reporting [Abstract]	'
Reportable Segments	'
	Reportable Segments
	The Company's operating and reportable segments are:
	•	LED Products
	•	Lighting Products
	•	Power and RF Products
	Reportable Segments Description
	The Company's LED Products segment includes LED chips, LED components and SiC materials. The Company's Lighting Products segment primarily consists of LED lighting systems and bulbs. The Company's Power and RF Products segment includes power devices and RF devices.
	Financial Results by Reportable Segment
	The table below reflects the results of the Company's reportable segments as reviewed by the Chief Operating Decision Maker (CODM) for the three months ended September 28, 2014 and September 29, 2013. The Company's CODM is the Chief Executive Officer. The Company used the same accounting policies to derive the segment results reported below as those used in the Company's consolidated financial statements.
	The Company's CODM does not review inter-segment transactions when evaluating segment performance and allocating resources to each segment, and inter-segment transactions are not included in the segment revenue presented in the table below. As such, total segment revenue in the table below is equal to the Company's consolidated revenue.
	The Company's CODM reviews gross profit as the lowest and only level of segment profit. As such, all items below gross profit in the Consolidated Statements of Income must be included to reconcile the consolidated gross profit presented in the table below to the Company's consolidated income before income taxes.
	In order to determine gross profit for each reportable segment, the Company allocates direct costs and indirect costs to each segment's cost of revenue. The Company allocates indirect costs, such as employee benefits for manufacturing employees, shared facilities services, information technology, purchasing, and customer service, when the costs are identifiable and beneficial to the reportable segment. The Company allocates these indirect costs based on a reasonable measure of utilization that considers the specific facts and circumstances of the costs being allocated.
	Unallocated costs in the table below consist primarily of manufacturing employees' stock-based compensation, expenses for profit sharing and quarterly or annual incentive plans and matching contributions under the Company's 401(k) plan. These costs were not allocated to the reportable segments’ gross profit because the Company’s CODM does not review them regularly when evaluating segment performance and allocating resources.
	Revenue, gross profit and gross margin for each of the Company's segments were as follows (in thousands, except percentages):
		Three Months Ended
		September 28,			September 29,
		2014			2013
	Revenue:
	LED Products revenue		$173,590			$218,023
	Lighting Products revenue	223,086			147,918
	Power and RF Products revenue	30,996			25,065
	Total revenue		$427,672			$391,006
	Gross Profit and Gross Margin:
	LED Products gross profit		$67,624			$101,653
	LED Products gross margin	39		%	46.6		%
	Lighting Products gross profit	55,592			39,818
	Lighting Products gross margin	24.9		%	26.9		%
	Power and RF Products gross profit	17,857			13,456
	Power and RF Products gross margin	57.6		%	53.7		%
	Total segment gross profit	141,073			154,927
	Unallocated costs	(5,253		)	(4,170		)
	Consolidated gross profit		$135,820			$150,757
	Consolidated gross margin	31.8		%	38.6		%
	Assets by Reportable Segment
	Inventories are the only assets reviewed by the Company's CODM when evaluating segment performance and allocating resources to the segments.
	Unallocated inventories in the table below were not allocated to the reportable segments because the Company’s CODM does not review them when evaluating performance and allocating resources to each segment. Unallocated inventories consisted primarily of manufacturing employees’ stock-based compensation, profit sharing and quarterly or annual incentive compensation and matching contributions under the Company’s 401(k) plan.
	The Company does not allocate assets other than inventories to the reportable segments because the Company's CODM does not review them when assessing segment performance and allocating resources. The CODM reviews all of the Company's assets other than inventories on a consolidated basis.
	Inventories for each of the Company's segments are as follows (in thousands):
		September 28,			June 29,
		2014			2014
	LED Products	$	149,654		$	123,249
	Lighting Products	147,982			148,757
	Power and RF Products	8,732			8,019
	Total segment inventories	306,368			280,025
	Unallocated inventories	4,412			4,755
	Consolidated inventories	$	310,780		$	284,780

Basis_of_Presentation_Policies

Basis of Presentation (Policies)	3 Months Ended
	Sep. 28, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	The consolidated balance sheet at September 28, 2014, the consolidated statements of income for the three months ended September 28, 2014 and September 29, 2013, the consolidated statements of comprehensive income for the three months ended September 28, 2014 and September 29, 2013, and the consolidated statements of cash flows for the three months ended September 28, 2014 and September 29, 2013 (collectively, the consolidated financial statements) have been prepared by the Company and have not been audited. In the opinion of management, all normal and recurring adjustments necessary to present fairly the consolidated financial position, results of operations and cash flows at September 28, 2014, and for all periods presented, have been made. All intercompany accounts and transactions have been eliminated. The consolidated balance sheet at June 29, 2014 has been derived from the audited financial statements as of that date.
	These financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP) for interim information and with the instructions to Form 10-Q and Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for annual financial statements. These financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended June 29, 2014 (fiscal 2014). The results of operations for the three months ended September 28, 2014 are not necessarily indicative of the operating results that may be attained for the entire fiscal year ending June 28, 2015 (fiscal 2015).
	The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue and expenses, and the disclosure of contingent assets and liabilities. Actual amounts could differ materially from those estimates.
	Certain fiscal 2014 amounts in the accompanying consolidated financial statements have been reclassified to conform to the fiscal 2015 presentation. These reclassifications had no effect on previously reported consolidated net income or shareholders’ equity.
New Accounting Standards	'
	New Accounting Standards
	Revenue from Contracts with Customers
	In May 2014, the FASB issued Accounting Standards Update (ASU) No. 2014-09: Revenue from Contracts with Customers (Topic 606). The ASU establishes a principles-based approach for accounting for revenue arising from contracts with customers and supersedes existing revenue recognition guidance. The ASU provides that an entity should apply a five-step approach for recognizing revenue, including (1) identify the contract with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract; and (5) recognize revenue when, or as, the entity satisfies a performance obligation. Also, the entity must provide various disclosures concerning the nature, amount and timing of revenue and cash flows arising from contracts with customers. The effective date will be the first quarter of the Company's fiscal year ending June 24, 2018, using one of two retrospective application methods. The Company is currently analyzing the impact of this new accounting guidance.
Stock-Based Compensation Valuation and Expense	'
	Stock-Based Compensation Valuation and Expense
	The Company accounts for its employee stock-based compensation plans using the fair value method. The fair value method requires the Company to estimate the grant-date fair value of its stock-based awards and amortize this fair value to compensation expense over the requisite service period or vesting term.
	The Company currently uses the Black-Scholes option-pricing model to estimate the fair value of the Company’s stock option and ESPP awards. The determination of the fair value of stock-based payment awards on the date of grant using an option-pricing model is affected by the Company’s stock price as well as assumptions regarding a number of complex and subjective variables. These variables include the expected stock price volatility over the term of the awards, actual and projected employee stock option exercise behaviors, the risk-free interest rate and expected dividends. Due to the inherent limitations of option-valuation models, future events that are unpredictable and the estimation process utilized in determining the valuation of the stock-based awards, the ultimate value realized by award holders may vary significantly from the amounts expensed in the Company’s financial statements.
	For RSAs and RSUs, the grant-date fair value is based upon the market price of the Company’s common stock on the date of the grant. This fair value is then amortized to compensation expense over the requisite service period or vesting term.
	Stock-based compensation expense is recognized net of estimated forfeitures such that expense is recognized only for those stock-based awards that are expected to vest. A forfeiture rate is estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from initial estimates.
Financial Results by Reportable Segment	'
	Financial Results by Reportable Segment
	The table below reflects the results of the Company's reportable segments as reviewed by the Chief Operating Decision Maker (CODM) for the three months ended September 28, 2014 and September 29, 2013. The Company's CODM is the Chief Executive Officer. The Company used the same accounting policies to derive the segment results reported below as those used in the Company's consolidated financial statements.
	The Company's CODM does not review inter-segment transactions when evaluating segment performance and allocating resources to each segment, and inter-segment transactions are not included in the segment revenue presented in the table below. As such, total segment revenue in the table below is equal to the Company's consolidated revenue.
	The Company's CODM reviews gross profit as the lowest and only level of segment profit. As such, all items below gross profit in the Consolidated Statements of Income must be included to reconcile the consolidated gross profit presented in the table below to the Company's consolidated income before income taxes.
	In order to determine gross profit for each reportable segment, the Company allocates direct costs and indirect costs to each segment's cost of revenue. The Company allocates indirect costs, such as employee benefits for manufacturing employees, shared facilities services, information technology, purchasing, and customer service, when the costs are identifiable and beneficial to the reportable segment. The Company allocates these indirect costs based on a reasonable measure of utilization that considers the specific facts and circumstances of the costs being allocated.
	Unallocated costs in the table below consist primarily of manufacturing employees' stock-based compensation, expenses for profit sharing and quarterly or annual incentive plans and matching contributions under the Company's 401(k) plan. These costs were not allocated to the reportable segments’ gross profit because the Company’s CODM does not review them regularly when evaluating segment performance and allocating resources.

Financial_Statement_Details_Ta

Financial Statement Details (Tables)	3 Months Ended
	Sep. 28, 2014
Financial Statement Details [Abstract]	'
Summary of the Components of Accounts Receivable, Net	'
	The following table summarizes the components of accounts receivable, net (in thousands):
		September 28, 2014			June 29, 2014
	Billed trade receivables		$271,459			$255,374
	Unbilled contract receivables	1,727			1,557
		273,186			256,931
	Allowance for sales returns, discounts and other incentives	(33,473		)	(29,010		)
	Allowance for bad debts	(2,721		)	(2,761		)
	Accounts receivable, net		$236,992			$225,160
Summary of the Components of Inventories	'
	The following table summarizes the components of inventories (in thousands):
		September 28, 2014			June 29, 2014
	Raw material		$93,883			$95,594
	Work-in-progress	104,969			92,889
	Finished goods	111,928			96,297
	Inventories		$310,780			$284,780
Summary of the Components of Other Current Liabilities	'
	The following table summarizes the components of other current liabilities (in thousands):
		September 28, 2014			June 29, 2014
	Accrued taxes		$19,256			$19,835
	Accrued professional fees	6,496			5,373
	Accrued warranty	6,397			5,842
	Accrued other	6,980			7,936
	Other current liabilities		$39,129			$38,986
Summary of the Components of Accumulated Other Comprehensive Income, Net of Taxes	'
	The following table summarizes the components of accumulated other comprehensive income, net of taxes (in thousands):
		September 28, 2014			June 29, 2014
	Currency translation gain		$7,382			$8,549
	Net unrealized gain on available-for-sale securities	2,345			2,856
	Accumulated other comprehensive income, net of taxes		$9,727			$11,405
Summary of the Components of Non-operating Income, Net	'
	The following table summarizes the components of non-operating income, net (in thousands):
		Three Months Ended
		September 28, 2014			September 29, 2013
	Foreign currency (loss) gain, net		($231	)		$264
	Gain on sale of investments, net	2			10
	Interest income, net	3,032			2,341
	Other, net	101			203
	Non-operating income, net		$2,904			$2,818
Summary of the Amounts Reclassified Out of Accumulated Other Comprehensive Income	'
	The following table summarizes the amounts reclassified out of accumulated other comprehensive income, net of taxes (in thousands):
	Accumulated Other Comprehensive Income Component		Amount Reclassified from Accumulated Other Comprehensive Income					Affected Line Item in the Consolidated Statements of Income
			Three Months Ended
			September 28, 2014			September 29, 2013
	Net unrealized gain on available-for-sale securities, net of taxes			$2			$10	Non-operating income, net
			2			10		Income before income taxes
			—			2		Income tax expense
				$2			$8	Net income

Investments_Tables

Investments (Tables)	3 Months Ended
	Sep. 28, 2014
Investments, Debt and Equity Securities [Abstract]	'
Summary of Short-term Investments by Type	'
	The following tables summarize short-term investments (in thousands):
			September 28, 2014
			Amortized			Gross Unrealized				Gross				Estimated Fair
			Cost			Gains				Unrealized				Value
										Losses
	Municipal bonds			$295,437			$2,405				($24	)			$297,818
	Corporate bonds		214,055			1,690				(419		)		215,326
	U.S. agency securities		18,950			129				—				19,079
	Non-U.S. certificates of deposit		373,303			—				—				373,303
	Non-U.S. government securities		2,999			18				—				3,017
	Total short-term investments			$904,744			$4,242				($443	)			$908,543
			June 29, 2014
			Amortized			Gross				Gross				Estimated Fair
			Cost			Unrealized				Unrealized				Value
						Gains				Losses
	Municipal bonds			$291,869			$2,323				($12	)			$294,180
	Corporate bonds		200,177			2,283				(114		)		202,346
	U.S. agency securities		18,994			141				—				19,135
	Non-U.S. certificates of deposit		352,928			—				—				352,928
	Non-U.S. government securities		7,025			28				—				7,053
	Total short-term investments			$870,993			$4,775				($126	)			$875,642
Summary of Gross Unrealized Losses and Estimated Fair Value of Short-term Investments, Aggregated by Investment Type and Length of Time	'
	The following tables present the gross unrealized losses and estimated fair value of the Company's short-term investments, aggregated by investment type and the length of time that individual securities have been in a continuous unrealized loss position (in thousands, except numbers of securities):
			September 28, 2014
			Less than 12 Months							Greater than 12 Months								Total
			Fair Value			Unrealized Loss				Fair Value				Unrealized Loss				Fair Value		Unrealized Loss
	Municipal bonds			$10,125			($21	)			$1,516				($3	)			$11,641		($24	)
	Corporate bonds		49,004			(265		)		12,935				(154		)		61,939		(419		)
	U.S. agency securities		—			—				—				—				—		—
	Non-U.S. certificates of deposit		—			—				—				—				—		—
	Non-U.S. government securities		—			—				—				—				—		—
	Total			$59,129			($286	)			$14,451				($157	)			$73,580		($443	)
	Number of securities with an unrealized loss					32								7						39
			June 29, 2014
			Less than 12 Months							Greater than 12 Months								Total
			Fair Value			Unrealized Loss				Fair Value				Unrealized Loss				Fair Value		Unrealized Loss
	Municipal bonds			$7,906			($8	)			$1,520				($4	)			$9,426		($12	)
	Corporate bonds		15,696			(31		)		13,049				(83		)		28,745		(114		)
	U.S. agency securities		—			—				—				—				—		—
	Non-U.S. certificates of deposit		—			—				—				—				—		—
	Non-U.S. government securities		—			—				—				—				—		—
	Total			$23,602			($39	)			$14,569				($87	)			$38,171		($126	)
	Number of securities with an unrealized loss					13								7						20
Contractual Maturities of Short-term Investments by Type	'
	The contractual maturities of short-term investments as of September 28, 2014 were as follows (in thousands):
		Within One			After One,				After Five,				After Ten				Total
		Year			Within Five				Within Ten				Years
					Years				Years
	Municipal bonds		$58,114			$210,550				$29,154				$—				$297,818
	Corporate bonds	21,052			156,156				38,118				—				215,326
	U.S. agency securities	6,571			12,508				—				—				19,079
	Non-U.S. certificates of deposit	373,303			—				—				—				373,303
	Non-U.S. government securities	—			3,017				—				—				3,017
	Total short-term investments		$459,040			$382,231				$67,272				$—				$908,543

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Sep. 28, 2014
Fair Value Disclosures [Abstract]	'
Financial Instruments Carried at Fair Value	'
	The following table sets forth financial instruments carried at fair value within the U.S. GAAP hierarchy (in thousands):
		September 28, 2014								June 29, 2014
		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
	Assets:
	Cash equivalents:
	Non-U.S. certificates of deposit		$—		$165		$—		$165		$—		$—		$—		$—
	Money market funds	18,714		—		—		18,714		40,031		—		—		40,031
	Total cash equivalents	18,714		165		—		18,879		40,031		—		—		40,031
	Short-term investments:
	Municipal bonds	—		297,818		—		297,818		—		294,180		—		294,180
	Corporate bonds	—		215,326		—		215,326		—		202,346		—		202,346
	U.S. agency securities	—		19,079		—		19,079		—		19,135		—		19,135
	Non-U.S. certificates of deposit	—		373,303		—		373,303		—		352,928		—		352,928
	Non-U.S. government securities	—		3,017		—		3,017		—		7,053		—		7,053
	Total short-term investments	—		908,543		—		908,543		—		875,642		—		875,642
	Total assets		$18,714		$908,708		$—		$927,422		$40,031		$875,642		$—		$915,673

Intangible_Assets_Tables

Intangible Assets (Tables)	3 Months Ended
	Sep. 28, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Components of intangible assets, net	'
	The following table presents the components of intangible assets, net (in thousands):
		September 28, 2014							June 29, 2014
		Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
	Intangible assets with finite lives:
	Customer relationships		$137,440		($68,315	)		$69,125		$137,440		($66,970	)		$70,470
	Developed technology	162,760		(77,581		)	85,179		162,760		(72,921		)	89,839
	Non-compete agreements	10,244		(6,487		)	3,757		10,244		(5,997		)	4,247
	Trade names, finite-lived	520		(520		)	—		520		(516		)	4
	Patent and licensing rights	139,070		(44,688		)	94,382		134,607		(42,424		)	92,183
	Total intangible assets with finite lives	450,034		(197,591		)	252,443		445,571		(188,828		)	256,743
	Trade names, indefinite-lived	79,680					79,680		79,680					79,680
	Total intangible assets		$529,714		($197,591	)		$332,123		$525,251		($188,828	)		$336,423
Schedule of future amortization expense of finite-lived intangible assets	'
	Total future amortization expense of finite-lived intangible assets is estimated to be as follows (in thousands):
	Fiscal Year Ending
	June 28, 2015 (remainder of fiscal 2015)		$26,021
	June 26, 2016	34,466
	June 25, 2017	32,463
	June 24, 2018	31,278
	June 30, 2019	18,730
	Thereafter	109,485
	Total future amortization expense		$252,443

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	3 Months Ended
	Sep. 28, 2014
Earnings Per Share [Abstract]	'
Basic Earnings Per Share Computation	'
	The following table presents the computation of basic earnings per share (in thousands, except per share amounts):
		Three Months Ended
		September 28,		September 29,
		2014		2013
	Basic:
	Net income		$11,130		$30,497
	Weighted average common shares	119,605		119,564
	Basic earnings per share		$0.09		$0.26
Diluted Earnings Per Share Computation	'
	The following computation reconciles the differences between the basic and diluted earnings per share presentations (in thousands, except per share amounts):
		Three Months Ended
		September 28,		September 29,
		2014		2013
	Diluted:
	Net income		$11,130		$30,497
	Weighted average common shares - basic	119,605		119,564
	Dilutive effect of stock options, nonvested shares and Employee Stock Purchase Plan purchase rights	1,538		2,800
	Weighted average common shares - diluted	121,143		122,364
	Diluted earnings per share		$0.09		$0.25

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	3 Months Ended
	Sep. 28, 2014
Share-based Compensation [Abstract]	'
Summary of Outstanding Option Awards	'
	The following table summarizes option activity as of September 28, 2014 and changes during the three months then ended (number of shares in thousands):
		Number of Shares		Weighted Average Exercise Price
	Outstanding at June 29, 2014	8,922			$41.85
	Granted	3,171		45.29
	Exercised	(421	)	29.18
	Forfeited or expired	(103	)	51.19
	Outstanding at September 28, 2014	11,569			$43.17
Summary of Nonvested Shares of Restricted Stock Awards and Restricted Stock Unit Awards Outstanding	'
	A summary of nonvested restricted stock awards (RSAs) and restricted stock unit awards (RSUs) outstanding as of September 28, 2014, and changes during the three months then ended is as follows (number of awards and units in thousands):
		Number of		Weighted Average
		RSAs/RSUs		Grant-Date Fair Value
	Nonvested at June 29, 2014	860			$46.81
	Granted	417		45.38
	Vested	(346	)	46.11
	Forfeited	(4	)	59.47
	Nonvested at September 28, 2014	927			$46.37
Summary of Total Stock-Based Compensation Expense	'
	Total stock-based compensation expense was as follows (in thousands):
		Three Months Ended
		September 28,			September 29,
		2014			2013
	Income Statement Classification:
	Cost of revenue, net		$2,905			$2,379
	Research and development	4,471			3,712
	Sales, general and administrative	9,383			8,487
	Total stock-based compensation expense		$16,759			$14,578

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	3 Months Ended
	Sep. 28, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Summary of changes in product warranty liabilities	'
	The following table summarizes the changes in the Company's product warranty liabilities (in thousands):
	Balance at June 29, 2014		$6,822
	Warranties accrued in current period	1,952
	Expenditures	(1,574		)
	Balance at September 28, 2014		$7,200

Reportable_Segments_Tables

Reportable Segments (Tables)	3 Months Ended
	Sep. 28, 2014
Segment Reporting [Abstract]	'
Revenues, Gross Profit and Gross Margin, by Segment	'
	Revenue, gross profit and gross margin for each of the Company's segments were as follows (in thousands, except percentages):
		Three Months Ended
		September 28,			September 29,
		2014			2013
	Revenue:
	LED Products revenue		$173,590			$218,023
	Lighting Products revenue	223,086			147,918
	Power and RF Products revenue	30,996			25,065
	Total revenue		$427,672			$391,006
	Gross Profit and Gross Margin:
	LED Products gross profit		$67,624			$101,653
	LED Products gross margin	39		%	46.6		%
	Lighting Products gross profit	55,592			39,818
	Lighting Products gross margin	24.9		%	26.9		%
	Power and RF Products gross profit	17,857			13,456
	Power and RF Products gross margin	57.6		%	53.7		%
	Total segment gross profit	141,073			154,927
	Unallocated costs	(5,253		)	(4,170		)
	Consolidated gross profit		$135,820			$150,757
	Consolidated gross margin	31.8		%	38.6		%
Schedule of inventory, net, by segment	'
	Inventories for each of the Company's segments are as follows (in thousands):
		September 28,			June 29,
		2014			2014
	LED Products	$	149,654		$	123,249
	Lighting Products	147,982			148,757
	Power and RF Products	8,732			8,019
	Total segment inventories	306,368			280,025
	Unallocated inventories	4,412			4,755
	Consolidated inventories	$	310,780		$	284,780

Basis_of_Presentation_Narrativ

Basis of Presentation Narrative (Details)	3 Months Ended
	Sep. 28, 2014
	reportable_segments
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Number of Reportable Segments	3

Financial_Statement_Details_Su

Financial Statement Details (Summary of the Components of Accounts Receivable, Net) (Details) (USD $)	Sep. 28, 2014	Jun. 29, 2014
In Thousands, unless otherwise specified
Accounts Receivable, Net, Current [Abstract]	'	'
Accounts receivable, gross	$273,186	$256,931
Allowance for bad debts	-2,721	-2,761
Accounts receivable, net	236,992	225,160
Sales Returns and Allowances [Member]	'	'
Accounts Receivable, Net, Current [Abstract]	'	'
Allowance for sales returns, discounts and other incentives	-33,473	-29,010
Billed trade receivables [Member]	'	'
Accounts Receivable, Net, Current [Abstract]	'	'
Accounts receivable, gross	271,459	255,374
Unbilled contract receivables [Member]	'	'
Accounts Receivable, Net, Current [Abstract]	'	'
Accounts receivable, gross	$1,727	$1,557

Financial_Statement_Details_Su1

Financial Statement Details (Summary of the Components of Inventories) (Details) (USD $)	Sep. 28, 2014	Jun. 29, 2014
In Thousands, unless otherwise specified
Inventory, Net [Abstract]	'	'
Raw material	$93,883	$95,594
Work-in-progress	104,969	92,889
Finished goods	111,928	96,297
Inventories	$310,780	$284,780

Financial_Statement_Details_Su2

Financial Statement Details (Summary of the Components of Other Current Liabilities) (Details) (USD $)	Sep. 28, 2014	Jun. 29, 2014
In Thousands, unless otherwise specified
Accrued Liabilities, Current [Abstract]	'	'
Accrued taxes	$19,256	$19,835
Accrued professional fees	6,496	5,373
Accrued warranty	6,397	5,842
Accrued other	6,980	7,936
Other current liabilities	$39,129	$38,986

Financial_Statement_Details_Su3

Financial Statement Details (Summary of the Components of Accumulated Other Comprehensive Income, Net of Taxes) (Details) (USD $)	Sep. 28, 2014	Jun. 29, 2014
In Thousands, unless otherwise specified
Accumulated other comprehensive income, net of taxes [Abstract]	'	'
Currency translation gain	$7,382	$8,549
Net unrealized gain on available-for-sale securities	2,345	2,856
Accumulated other comprehensive income, net of taxes	$9,727	$11,405

Financial_Statement_Details_Su4

Financial Statement Details (Summary of the Components of Non-operating Income, Net) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013
Other Income and Expenses [Abstract]	'	'
Foreign currency (loss) gain, net	($231)	$264
Gain on sale of investments, net	2	10
Interest income, net	3,032	2,341
Other, net	101	203
Non-operating income, net	$2,904	$2,818

Financial_Statement_Details_Su5

Financial Statement Details (Summary of the Amounts Reclassified Out of Accumulated Other Comprehensive Income) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]	'	'
Non-operating income, net	$2,904	$2,818
Income before income taxes	14,361	39,610
Income tax expense	3,231	9,113
Net income	11,130	30,497
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]	'	'
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]	'	'
Non-operating income, net	2	10
Income before income taxes	2	10
Income tax expense	0	2
Net income	$2	$8

Investments_Summary_of_Shortte

Investments (Summary of Short-term Investments by Type) (Details) (USD $)	Sep. 28, 2014	Jun. 29, 2014
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	$904,744	$870,993
Gross Unrealized Gains	4,242	4,775
Gross Unrealized Losses	-443	-126
Estimated Fair Value	908,543	875,642
Municipal Bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	295,437	291,869
Gross Unrealized Gains	2,405	2,323
Gross Unrealized Losses	-24	-12
Estimated Fair Value	297,818	294,180
Corporate Bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	214,055	200,177
Gross Unrealized Gains	1,690	2,283
Gross Unrealized Losses	-419	-114
Estimated Fair Value	215,326	202,346
U.S. Agency Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	18,950	18,994
Gross Unrealized Gains	129	141
Gross Unrealized Losses	0	0
Estimated Fair Value	19,079	19,135
Non-U.S. Certificates of Deposit [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	373,303	352,928
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value	373,303	352,928
Non-U.S. Government Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	2,999	7,025
Gross Unrealized Gains	18	28
Gross Unrealized Losses	0	0
Estimated Fair Value	$3,017	$7,053

Investments_Summary_of_Gross_U

Investments (Summary of Gross Unrealized Losses and Estimated Fair Value of Short-term Investments, Aggregated by Investment Type and Length of Time) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013	Jun. 29, 2014
Schedule of Available-for-sale Securities [Line Items]	'	'	'
Fair Value, Less than 12 Months	$59,129	'	$23,602
Unrealized Loss, Less than 12 Months	-286	'	-39
Fair Value, Greater than 12 Months	14,451	'	14,569
Unrealized Loss, Greater than 12 Months	-157	'	-87
Fair Value, Total	73,580	'	38,171
Unrealized Loss, Total	-443	'	-126
Number of Securities with an Unrealized Loss, Less than 12 Months	32	'	13
Number of Securities with an Unrealized Loss, Greater than 12 Months	7	'	7
Number of Securities with an Unrealized Loss, Total	39	'	20
Gain on sale of investments, net	2	10	'
Municipal Bonds [Member]	'	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'	'
Fair Value, Less than 12 Months	10,125	'	7,906
Unrealized Loss, Less than 12 Months	-21	'	-8
Fair Value, Greater than 12 Months	1,516	'	1,520
Unrealized Loss, Greater than 12 Months	-3	'	-4
Fair Value, Total	11,641	'	9,426
Unrealized Loss, Total	-24	'	-12
Corporate Bonds [Member]	'	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'	'
Fair Value, Less than 12 Months	49,004	'	15,696
Unrealized Loss, Less than 12 Months	-265	'	-31
Fair Value, Greater than 12 Months	12,935	'	13,049
Unrealized Loss, Greater than 12 Months	-154	'	-83
Fair Value, Total	61,939	'	28,745
Unrealized Loss, Total	-419	'	-114
U.S. Agency Securities [Member]	'	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'	'
Fair Value, Less than 12 Months	0	'	0
Unrealized Loss, Less than 12 Months	0	'	0
Fair Value, Greater than 12 Months	0	'	0
Unrealized Loss, Greater than 12 Months	0	'	0
Fair Value, Total	0	'	0
Unrealized Loss, Total	0	'	0
Non-U.S. Certificates of Deposit [Member]	'	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'	'
Fair Value, Less than 12 Months	0	'	0
Unrealized Loss, Less than 12 Months	0	'	0
Fair Value, Greater than 12 Months	0	'	0
Unrealized Loss, Greater than 12 Months	0	'	0
Fair Value, Total	0	'	0
Unrealized Loss, Total	0	'	0
Non-U.S. Government Securities [Member]	'	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'	'
Fair Value, Less than 12 Months	0	'	0
Unrealized Loss, Less than 12 Months	0	'	0
Fair Value, Greater than 12 Months	0	'	0
Unrealized Loss, Greater than 12 Months	0	'	0
Fair Value, Total	0	'	0
Unrealized Loss, Total	$0	'	$0

Investments_Contractual_Maturi

Investments (Contractual Maturities of Short-term Investments by Type) (Details) (USD $)	Sep. 28, 2014	Jun. 29, 2014
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Within One Year	$459,040	'
After One, Within Five Years	382,231	'
After Five, Within Ten Years	67,272	'
After Ten Years	0	'
Total	908,543	875,642
Municipal Bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Within One Year	58,114	'
After One, Within Five Years	210,550	'
After Five, Within Ten Years	29,154	'
After Ten Years	0	'
Total	297,818	'
Corporate Bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Within One Year	21,052	'
After One, Within Five Years	156,156	'
After Five, Within Ten Years	38,118	'
After Ten Years	0	'
Total	215,326	'
U.S. Agency Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Within One Year	6,571	'
After One, Within Five Years	12,508	'
After Five, Within Ten Years	0	'
After Ten Years	0	'
Total	19,079	'
Non-U.S. Certificates of Deposit [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Within One Year	373,303	'
After One, Within Five Years	0	'
After Five, Within Ten Years	0	'
After Ten Years	0	'
Total	373,303	'
Non-U.S. Government Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Within One Year	0	'
After One, Within Five Years	3,017	'
After Five, Within Ten Years	0	'
After Ten Years	0	'
Total	$3,017	'

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments (Financial Instruments Carried at Fair Value) (Details) (USD $)	Sep. 28, 2014	Jun. 29, 2014
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fair value transfers level 1 to level 2	$0	'
Fair value transfers, level 2 to level 1	0	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	908,543	875,642
Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Cash equivalents	18,879	40,031
Short-term investments	908,543	875,642
Total assets	927,422	915,673
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Cash equivalents	18,714	40,031
Short-term investments	0	0
Total assets	18,714	40,031
Level 2 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Cash equivalents	165	0
Short-term investments	908,543	875,642
Total assets	908,708	875,642
Level 3 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Cash equivalents	0	0
Short-term investments	0	0
Total assets	0	0
Municipal Bonds [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	297,818	294,180
Municipal Bonds [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	297,818	294,180
Municipal Bonds [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	0	0
Municipal Bonds [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	297,818	294,180
Municipal Bonds [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	0	0
Corporate Bonds [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	215,326	202,346
Corporate Bonds [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	215,326	202,346
Corporate Bonds [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	0	0
Corporate Bonds [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	215,326	202,346
Corporate Bonds [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	0	0
U.S. Agency Securities [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	19,079	19,135
U.S. Agency Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	19,079	19,135
U.S. Agency Securities [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	0	0
U.S. Agency Securities [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	19,079	19,135
U.S. Agency Securities [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	0	0
Non-U.S. Certificates of Deposit [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	373,303	352,928
Non-U.S. Certificates of Deposit [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	373,303	352,928
Non-U.S. Certificates of Deposit [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	0	0
Non-U.S. Certificates of Deposit [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	373,303	352,928
Non-U.S. Certificates of Deposit [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	0	0
Non-U.S. Government Securities [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	3,017	7,053
Non-U.S. Government Securities [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	3,017	7,053
Non-U.S. Government Securities [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	0	0
Non-U.S. Government Securities [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	3,017	7,053
Non-U.S. Government Securities [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Short-term investments	0	0
Non-U.S. Certificates of Deposit [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Cash equivalents	165	0
Non-U.S. Certificates of Deposit [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Cash equivalents	0	0
Non-U.S. Certificates of Deposit [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Cash equivalents	165	0
Non-U.S. Certificates of Deposit [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Cash equivalents	0	0
Money Market Funds [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Cash equivalents	18,714	40,031
Money Market Funds [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Cash equivalents	18,714	40,031
Money Market Funds [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Cash equivalents	0	0
Money Market Funds [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Cash equivalents	$0	$0

Intangible_Assets_Components_o

Intangible Assets (Components of intangible assets, net) (Details) (USD $)	Sep. 28, 2014	Jun. 29, 2014
In Thousands, unless otherwise specified
Intangible Assets [Line Items]	'	'
Finite-lived intangible assets, gross	$450,034	$445,571
Finite-lived intangible assets, accumulated amortization	-197,591	-188,828
Finite-lived intangible assets, net	252,443	256,743
Trade names, indefinite-lived	79,680	79,680
Finite and indefinite intangible assets, gross	529,714	525,251
Intangible assets, net	332,123	336,423
Customer Relationships [Member]	'	'
Intangible Assets [Line Items]	'	'
Finite-lived intangible assets, gross	137,440	137,440
Finite-lived intangible assets, accumulated amortization	-68,315	-66,970
Finite-lived intangible assets, net	69,125	70,470
Developed Technology [Member]	'	'
Intangible Assets [Line Items]	'	'
Finite-lived intangible assets, gross	162,760	162,760
Finite-lived intangible assets, accumulated amortization	-77,581	-72,921
Finite-lived intangible assets, net	85,179	89,839
Non-compete Agreements [Member]	'	'
Intangible Assets [Line Items]	'	'
Finite-lived intangible assets, gross	10,244	10,244
Finite-lived intangible assets, accumulated amortization	-6,487	-5,997
Finite-lived intangible assets, net	3,757	4,247
Trade Names, finite-lived [Member]	'	'
Intangible Assets [Line Items]	'	'
Finite-lived intangible assets, gross	520	520
Finite-lived intangible assets, accumulated amortization	-520	-516
Finite-lived intangible assets, net	0	4
Patent and Licensing Rights [Member]	'	'
Intangible Assets [Line Items]	'	'
Finite-lived intangible assets, gross	139,070	134,607
Finite-lived intangible assets, accumulated amortization	-44,688	-42,424
Finite-lived intangible assets, net	$94,382	$92,183

Intangible_Assets_Intangible_A

Intangible Assets Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'	'
Amortization of Intangible Assets	$8.90	$9.40

Intangible_Assets_Intangible_A1

Intangible Assets Intangible Assets (Schedule of future amortization expense of finite-lived intangible assets) (Details) (USD $)	Sep. 28, 2014	Jun. 29, 2014
In Thousands, unless otherwise specified
Goodwill and Intangible Assets Disclosure [Abstract]	'	'
June 28, 2015 (remainder of fiscal 2015)	$26,021	'
26-Jun-16	34,466	'
25-Jun-17	32,463	'
24-Jun-18	31,278	'
30-Jun-19	18,730	'
Thereafter	109,485	'
Finite-lived intangible assets, net	$252,443	$256,743

Longterm_Debt_Details

Long-term Debt (Details) (USD $)	3 Months Ended
	Sep. 28, 2014	Jun. 29, 2014
Long-term Debt, Unclassified [Abstract]	'	'
Line of Credit Facility, Maximum Borrowing Capacity	$150,000,000	'
Long-term debt	45,000,000	0
Line of Credit Facility, Remaining Borrowing Capacity	$105,000,000	'
Long-term Debt, Average Interest Rate	0.85%	'
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.08%	'

Shareholders_Equity_Narrative_

Shareholders' Equity (Narrative) (Details) (June 28, 2015 Expiration [Member] [Domain], Common Stock [Member], USD $)	0 Months Ended	3 Months Ended
In Millions, unless otherwise specified	6-May-14	Sep. 28, 2014
June 28, 2015 Expiration [Member] [Domain] | Common Stock [Member]	'	'
Class of Stock [Line Items]	'	'
Stock Repurchase Program, Authorized Amount	$300	'
Repurchased share value	'	$54.30

Earnings_Per_Share_Basic_Earni

Earnings Per Share (Basic Earnings Per Share Computation) (Details) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013
Earnings Per Share, Basic [Abstract]	'	'
Net income	$11,130	$30,497
Weighted average common shares - basic	119,605	119,564
Basic earnings per share	$0.09	$0.26

Earnings_Per_Share_Diluted_Ear

Earnings Per Share (Diluted Earnings Per Share Computation) (Details) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013
Earnings Per Share, Diluted [Abstract]	'	'
Net income	$11,130	$30,497
Weighted average common shares - basic	119,605	119,564
Dilutive effect of stock options, nonvested shares and Employee Stock Purchase Plan purchase rights	1,538	2,800
Weighted average common shares - diluted	121,143	122,364
Diluted earnings per share	$0.09	$0.25

Earnings_Per_Share_Narrative_D

Earnings Per Share (Narrative) (Details) (Common Stock [Member])	3 Months Ended
In Millions, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013
Common Stock [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Anti-dilutive potential common shares excluded from diluted earnings per share calculation	5.2	1.1

StockBased_Compensation_Narrat

Stock-Based Compensation (Narrative) (Details)	3 Months Ended
	Sep. 28, 2014
	plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of equity-based compensation plans	1
Employee Stock Purchase Plan [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Maximum contribution of employee's compensation, percentage	15.00%
Number of opportunities to purchase common stock at discount, per year	2
Employee Stock Purchase Plan Prior to Second Quarter Fiscal 2012 Amendment [Member] | Employee Stock Purchase Plan [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Employee stock plan purchase discount at purchase date	15.00%
Employee Stock Purchase Plan After Second Quarter Fiscal 2012 Amendment [Member] | Employee Stock Purchase Plan [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Employee stock plan purchase discount at beginning of participation period or purchase date	15.00%

StockBased_Compensation_Summar

Stock-Based Compensation (Summary of Outstanding Option Awards) (Details) (Stock Option [Member], USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 28, 2014
Stock Option [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]	'
Outstanding number of shares at beginning of period	8,922
Granted, number of shares	3,171
Exercised, number of shares	-421
Forfeited or expired, number of shares	-103
Outstanding number of shares at end of period	11,569
Outstanding weighted-average exercise price at beginning of period	$41.85
Granted, weighted-average exercise price	$45.29
Exercised, weighted-average exercise price	$29.18
Forfeited or expired, weighted-average exercise price	$51.19
Outstanding weighted-average exercised price at end of period	$43.17

StockBased_Compensation_Summar1

Stock-Based Compensation (Summary of Nonvested Shares of Restricted Stock and Stock Unit Awards Outstanding) (Details) (Restricted Stock Awards And Restricted Stock Units [Member], USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 28, 2014
Restricted Stock Awards And Restricted Stock Units [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]	'
Nonvested, Number of RSAs/RSUs at beginning of period	860
Granted, Number of RSAs/RSUs	417
Vested, number of RSAs/RSUs	-346
Forfeited, number of RSAs/RSUs	-4
Nonvested, Number of RSAs/RSUs at end of period	927
Nonvested, weighted-average grant-date fair value at beginning of period	$46.81
Granted, weighted-average grant-date fair value	$45.38
Vested, weighted-average grant-date fair value	$46.11
Forfeited, weighted-average grant-date fair value	$59.47
Nonvested, weighted-average grant-date fair value at end of period	$46.37

StockBased_Compensation_Total_

Stock-Based Compensation (Total Stock-Based Compensation Expense) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Total stock-based compensation expense	$16,759	$14,578
Cost of revenue, net [Member]	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Total stock-based compensation expense	2,905	2,379
Research and development [Member]	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Total stock-based compensation expense	4,471	3,712
Selling, general and administrative [Member]	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Total stock-based compensation expense	$9,383	$8,487

Income_Taxes_Narrative_Details

Income Taxes (Narrative) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Sep. 28, 2014	Jun. 29, 2014
Income Tax Disclosure [Abstract]	'	'
U.S. statutory tax rate	35.00%	'
Unrecognized tax benefits balance	$18.40	$18.40
Unrecognized Tax Benefits, Period Increase (Decrease)	0	'
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	18.4	'
Estimated change in unrecognized tax benefits in next 12 months	$0.20	'

Commitments_and_Contingencies_1

Commitments and Contingencies (Warranties) (Details) (USD $)	3 Months Ended
	Sep. 28, 2014
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]	'
Warranty accrual, beginning balance	$6,822,000
Warranties accrued in current period	1,952,000
Expenditures	-1,574,000
Warranty accrual, ending balance	7,200,000
Product Warranty Liability, Long-Term	$800,000
Minimum [Member]	'
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]	'
Product Warranty, Range Period	'90 days
Maximum [Member]	'
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]	'
Product Warranty, Range Period	'10 years

Reportable_Segments_Revenues_G

Reportable Segments (Revenues, Gross Profit and Gross Margin, by Segment) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013
Segment Reporting Information [Line Items]	'	'
Revenue, net	$427,672	$391,006
Gross profit	135,820	150,757
Gross Margin	31.80%	38.60%
LED Products [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Revenue, net	173,590	218,023
Gross profit	67,624	101,653
Gross Margin	39.00%	46.60%
Lighting Products [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Revenue, net	223,086	147,918
Gross profit	55,592	39,818
Gross Margin	24.90%	26.90%
Power and RF Products [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Revenue, net	30,996	25,065
Gross profit	17,857	13,456
Gross Margin	57.60%	53.70%
Total segment gross profit [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Gross profit	141,073	154,927
Unallocated Costs [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Gross profit	($5,253)	($4,170)

Reportable_Segments_Schedule_o

Reportable Segments Schedule of Inventory by Reportable Segment (Details) (USD $)	Sep. 28, 2014	Jun. 29, 2014
In Thousands, unless otherwise specified
Segment Reporting Information [Line Items]	'	'
Inventories	$310,780	$284,780
LED Products [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Inventories	149,654	123,249
Lighting Products [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Inventories	147,982	148,757
Power and RF Products [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Inventories	8,732	8,019
Total segment inventories [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Inventories	306,368	280,025
Unallocated inventories [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Inventories	$4,412	$4,755