Discontinued Operations (Components of Deferred Gain) (Details) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended
	May. 30, 2014	Jun. 29, 2014	Jan. 03, 2016	Dec. 28, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale price			$ 0	$ 15,300
High-Speed Converter Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale price	$ 18,000	$ 18,000
Other Long-term Liabilities | High-Speed Converter Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale price			1,500
Less book value of assets sold			(115)
Deferred gain on divestiture			$ 1,385