Other Divestitures (not accounted as discontinued operations) (Details) - USD ($)			12 Months Ended
	Dec. 13, 2013	Jul. 12, 2013	Mar. 29, 2015	Mar. 30, 2014
Assets of Audio Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash proceeds from sale	$ 200,000
Maximum contingent consideration	1,000,000
Estimate of fair value of transitional services agreement	$ 0
Fair value adjustment to transitional services agreement			$ (300,000)
Gain (loss) on divestiture				$ (3,700,000)
PCI Express
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on divestiture				$ 82,300,000
Cash deposit received from divestiture of business		$ 96,100,000