Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Mar. 28, 2015	Mar. 29, 2014	Mar. 30, 2013
Consolidated Statements of Comprehensive Income [Abstract]
Net sales	$ 916,568us-gaap_SalesRevenueNet	$ 714,338us-gaap_SalesRevenueNet	$ 809,786us-gaap_SalesRevenueNet
Cost of sales	490,820us-gaap_CostOfGoodsSold	358,175us-gaap_CostOfGoodsSold	414,595us-gaap_CostOfGoodsSold
Gross profit	425,748us-gaap_GrossProfit	356,163us-gaap_GrossProfit	395,191us-gaap_GrossProfit
Operating expenses:
Research and development	197,878us-gaap_ResearchAndDevelopmentExpense	126,189us-gaap_ResearchAndDevelopmentExpense	114,071us-gaap_ResearchAndDevelopmentExpense
Selling, general and administrative	99,509	74,861	76,998
Acquisition related costs	18,137
Restructuring and other, net	1,455	(598)	3,292
Patent infringement settlements, net		695us-gaap_LitigationSettlementAmount
Total operating expenses	316,979us-gaap_OperatingExpenses	201,147us-gaap_OperatingExpenses	194,361us-gaap_OperatingExpenses
Income from operations	108,769us-gaap_OperatingIncomeLoss	155,016us-gaap_OperatingIncomeLoss	200,830us-gaap_OperatingIncomeLoss
Interest income	579us-gaap_InvestmentIncomeNet	848us-gaap_InvestmentIncomeNet	440us-gaap_InvestmentIncomeNet
Interest expense	(5,627)us-gaap_InterestExpense
Other expense	(12,172)us-gaap_OtherNonoperatingIncomeExpense	(127)us-gaap_OtherNonoperatingIncomeExpense	(80)us-gaap_OtherNonoperatingIncomeExpense
Income before income taxes	91,549	155,737	201,190
Provision for income taxes	36,371us-gaap_IncomeTaxExpenseBenefit	47,626us-gaap_IncomeTaxExpenseBenefit	64,592us-gaap_IncomeTaxExpenseBenefit
Net income	$ 55,178us-gaap_NetIncomeLoss	$ 108,111us-gaap_NetIncomeLoss	$ 136,598us-gaap_NetIncomeLoss
Basic earnings per share	$ 0.88us-gaap_EarningsPerShareBasic	$ 1.72us-gaap_EarningsPerShareBasic	$ 2.12us-gaap_EarningsPerShareBasic
Diluted earnings per share	$ 0.85us-gaap_EarningsPerShareDiluted	$ 1.65us-gaap_EarningsPerShareDiluted	$ 2.00us-gaap_EarningsPerShareDiluted
Basic weighted average common shares outstanding	62,503	62,926	64,580
Diluted weighted average common shares outstanding	65,235	65,535	68,454

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 23

-URI http://asc.fasb.org/extlink&oid=21917927&loc=d3e1043-128460