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Business Combinations - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 07, 2015
Apr. 03, 2016
Jan. 03, 2016
Sep. 27, 2015
Jun. 28, 2015
Mar. 29, 2015
Dec. 28, 2014
Sep. 28, 2014
Jun. 29, 2014
Apr. 03, 2016
Mar. 29, 2015
Mar. 30, 2014
Business Acquisition [Line Items]                        
Revenues   $ 189,361 $ 177,610 $ 169,498 $ 160,907 $ 158,350 $ 151,160 $ 137,093 $ 126,302 $ 697,376 $ 572,905 $ 484,779
Zentrum Mikroelektronik Dresden AG                        
Business Acquisition [Line Items]                        
Cash paid for acquisition $ 307,000                      
Escrow deposit $ 20,000                      
Revenues                   24,400    
Zentrum Mikroelektronik Dresden AG | Developed technology                        
Business Acquisition [Line Items]                        
Company discount rate 13.50%                      
Zentrum Mikroelektronik Dresden AG | Customer relationships                        
Business Acquisition [Line Items]                        
Company discount rate 13.50%                      
Zentrum Mikroelektronik Dresden AG | Order backlog                        
Business Acquisition [Line Items]                        
Company discount rate 5.40%                      
Zentrum Mikroelektronik Dresden AG | Trademark                        
Business Acquisition [Line Items]                        
Company discount rate 13.50%                      
Zentrum Mikroelektronik Dresden AG | Notes Payable to Banks                        
Business Acquisition [Line Items]                        
Outstanding bank loans assumed of ZMDI $ 9,400                      
Outstanding debt   $ 0               0    
Zentrum Mikroelektronik Dresden AG | Selling, General and Administrative Expenses                        
Business Acquisition [Line Items]                        
Acquisition-related costs incurred                   $ 2,500