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Discontinued Operations (Divestiture) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
May. 30, 2014
Sep. 27, 2015
Sep. 28, 2014
Jun. 29, 2014
Sep. 27, 2015
Sep. 28, 2014
Long Lived Assets Held-for-sale [Line Items]            
Cash proceeds from sale         $ 0 $ 15,300
High-Speed Converter Business            
Long Lived Assets Held-for-sale [Line Items]            
Cash proceeds from sale $ 18,000     $ 18,000    
Less book value of assets sold and direct costs related to the sale:            
Intangible assets       (990)    
Transaction and other costs       (170)    
Gain on divestiture   $ 0 $ 0 $ 16,840 $ 0 $ 16,840