Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Dec. 28, 2014	Dec. 29, 2013	Dec. 28, 2014	Dec. 29, 2013
Income Statement [Abstract]
Revenue, net	$ 413,157us-gaap_SalesRevenueGoodsNet	$ 415,086us-gaap_SalesRevenueGoodsNet	$ 840,829us-gaap_SalesRevenueGoodsNet	$ 806,092us-gaap_SalesRevenueGoodsNet
Cost of revenue, net	276,378us-gaap_CostOfGoodsSold	259,308us-gaap_CostOfGoodsSold	568,230us-gaap_CostOfGoodsSold	499,557us-gaap_CostOfGoodsSold
Gross profit	136,779us-gaap_GrossProfit	155,778us-gaap_GrossProfit	272,599us-gaap_GrossProfit	306,535us-gaap_GrossProfit
Operating expenses:
Research and development	46,989us-gaap_ResearchAndDevelopmentExpense	44,436us-gaap_ResearchAndDevelopmentExpense	93,714us-gaap_ResearchAndDevelopmentExpense	86,179us-gaap_ResearchAndDevelopmentExpense
Sales, general and administrative	72,375	67,943	142,067	132,221
Amortization or impairment of acquisition-related intangibles	6,495	7,256	12,994	14,543
Loss on disposal or impairment of long-lived assets	735us-gaap_GainLossOnDispositionOfAssets	760us-gaap_GainLossOnDispositionOfAssets	2,182us-gaap_GainLossOnDispositionOfAssets	1,417us-gaap_GainLossOnDispositionOfAssets
Total operating expenses	126,594us-gaap_OperatingExpenses	120,395us-gaap_OperatingExpenses	250,957us-gaap_OperatingExpenses	234,360us-gaap_OperatingExpenses
Operating income	10,185us-gaap_OperatingIncomeLoss	35,383us-gaap_OperatingIncomeLoss	21,642us-gaap_OperatingIncomeLoss	72,175us-gaap_OperatingIncomeLoss
Non-operating income, net	1,728us-gaap_NonoperatingIncomeExpense	3,403us-gaap_NonoperatingIncomeExpense	4,632us-gaap_NonoperatingIncomeExpense	6,221us-gaap_NonoperatingIncomeExpense
Income before income taxes	11,913	38,786	26,274	78,396
Income tax (benefit) expense	(238)us-gaap_IncomeTaxExpenseBenefit	3,105us-gaap_IncomeTaxExpenseBenefit	2,993us-gaap_IncomeTaxExpenseBenefit	12,218us-gaap_IncomeTaxExpenseBenefit
Net income	$ 12,151us-gaap_NetIncomeLoss	$ 35,681us-gaap_NetIncomeLoss	$ 23,281us-gaap_NetIncomeLoss	$ 66,178us-gaap_NetIncomeLoss
Earnings per share:
Basic	$ 0.11us-gaap_EarningsPerShareBasic	$ 0.30us-gaap_EarningsPerShareBasic	$ 0.20us-gaap_EarningsPerShareBasic	$ 0.55us-gaap_EarningsPerShareBasic
Diluted	$ 0.10us-gaap_EarningsPerShareDiluted	$ 0.29us-gaap_EarningsPerShareDiluted	$ 0.20us-gaap_EarningsPerShareDiluted	$ 0.54us-gaap_EarningsPerShareDiluted
Weighted average shares used in per share calculation:
Basic	115,264	120,932	117,435	120,248
Diluted	115,845	123,204	118,599	122,821

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