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Acquisitions (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 11, 2016
Apr. 02, 2016
Apr. 04, 2015
Jan. 02, 2016
Acquisition        
Payment of earn-out for the first annual period     $ 4,464  
Energy Micro        
Acquisition        
Cash consideration     20,000  
Payment of earn-out for the first annual period     6,300  
Earn-out payment representing the Departure Percentage portion and recorded as compensation expense     1,800  
Remaining Earn-out payment representing additional consideration     $ 4,500  
Earn-Out, fair value $ 16,000      
Potential maximum contingent consideration that could be paid 26,700      
Additional consideration 11,400      
Compensation expense $ 4,600 $ 2,700   $ 1,900
Gain from the adjustment to fair value due to settlement   $ 2,700