Business Combinations-Assets Acquired and Liabilities Assumed (Details) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012	Apr. 30, 2012 Fox Enterprises	Jul. 19, 2012 NXP B.V		Apr. 16, 2012 Alvand Technologies	Apr. 16, 2012 Backlog Alvand Technologies	Apr. 16, 2012 Non-competition agreements Alvand Technologies
Business Acquisition
Cash				$ 1,080			$ 147
Accounts receivable				4,053			211
Inventories				2,600	252
Prepaid expenses and other current assets				363			124
Property, plant and equipment, net				656	1,125		15
Funded pension assets					666	[1]
Other long-term assets				1,190
Accounts payable and accrued expenses				(3,765)			(707)
Finite-lived intangibles				12,300	12,500			1,500	2,300
Other long-term liabilities				(1,516)
Long-term deferred tax liability				(4,549)
Accrued pension liabilities					(666)	[1]
Other long-term liabilities					(435)
Intangible assets (other than goodwill)				12,300	12,500
Goodwill	135,644	144,924	96,092	16,509	13,720		19,712
Total purchase price				$ 28,921	$ 27,162		$ 23,302

[1] See Note 16 for information regarding pension plans adopted.