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CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 27, 2014	Dec. 28, 2013
Income Statement [Abstract]
Net revenues	$ 231,827us-gaap_SalesRevenueGoodsNet	$ 242,120us-gaap_SalesRevenueGoodsNet	$ 683,895us-gaap_SalesRevenueGoodsNet	$ 697,418us-gaap_SalesRevenueGoodsNet
Cost of goods sold	120,166us-gaap_CostOfGoodsSold	120,491us-gaap_CostOfGoodsSold	357,842us-gaap_CostOfGoodsSold	344,494us-gaap_CostOfGoodsSold
Gross profit	111,661us-gaap_GrossProfit	121,629us-gaap_GrossProfit	326,053us-gaap_GrossProfit	352,924us-gaap_GrossProfit
Operating expenses:
Research and development	10,643us-gaap_ResearchAndDevelopmentExpense	14,209us-gaap_ResearchAndDevelopmentExpense	36,962us-gaap_ResearchAndDevelopmentExpense	40,364us-gaap_ResearchAndDevelopmentExpense
Selling, general and administrative	82,758us-gaap_SellingGeneralAndAdministrativeExpense	89,560us-gaap_SellingGeneralAndAdministrativeExpense	260,089us-gaap_SellingGeneralAndAdministrativeExpense	277,879us-gaap_SellingGeneralAndAdministrativeExpense
Total operating expenses	93,401us-gaap_OperatingExpenses	103,769us-gaap_OperatingExpenses	297,051us-gaap_OperatingExpenses	318,243us-gaap_OperatingExpenses
Operating income	18,260us-gaap_OperatingIncomeLoss	17,860us-gaap_OperatingIncomeLoss	29,002us-gaap_OperatingIncomeLoss	34,681us-gaap_OperatingIncomeLoss
Interest and other expense, net	(2,308)us-gaap_OtherNonoperatingIncomeExpense	(2,852)us-gaap_OtherNonoperatingIncomeExpense	(7,496)us-gaap_OtherNonoperatingIncomeExpense	(8,035)us-gaap_OtherNonoperatingIncomeExpense
Income before provision for (benefit from) income taxes	15,952us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	15,008us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	21,506us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	26,646us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Provision for (benefit from) income taxes	(36)us-gaap_IncomeTaxExpenseBenefit	(1,282)us-gaap_IncomeTaxExpenseBenefit	1,679us-gaap_IncomeTaxExpenseBenefit	1,682us-gaap_IncomeTaxExpenseBenefit
Net income	15,988us-gaap_NetIncomeLoss	16,290us-gaap_NetIncomeLoss	19,827us-gaap_NetIncomeLoss	24,964us-gaap_NetIncomeLoss
Net income per share - basic (in dollars per share)	$ 0.31us-gaap_EarningsPerShareBasic	$ 0.31us-gaap_EarningsPerShareBasic	$ 0.38us-gaap_EarningsPerShareBasic	$ 0.48us-gaap_EarningsPerShareBasic
Net income per share - diluted (in dollars per share)	$ 0.31us-gaap_EarningsPerShareDiluted	$ 0.31us-gaap_EarningsPerShareDiluted	$ 0.38us-gaap_EarningsPerShareDiluted	$ 0.48us-gaap_EarningsPerShareDiluted
Weighted average shares outstanding
Basic (in shares)	51,432us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	51,730us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	51,521us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	51,485us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Diluted (in shares)	51,962us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	52,511us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	52,024us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	52,300us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Comprehensive income	$ 8,346us-gaap_ComprehensiveIncomeNetOfTax	$ 17,289us-gaap_ComprehensiveIncomeNetOfTax	$ 10,841us-gaap_ComprehensiveIncomeNetOfTax	$ 24,463us-gaap_ComprehensiveIncomeNetOfTax

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