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Business Acquisitions - Celsis, Additional Information (Details) - Celsis - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 24, 2015
Jun. 25, 2016
Jun. 27, 2015
Jun. 25, 2016
Jun. 27, 2015
Business Acquisition [Line Items]          
Purchase price $ 214,500        
Assumed liabilities 10,300        
Total purchase price allocation 212,236        
Cash acquired $ 2,300        
Integration related costs and transaction costs   $ 600 $ 3,500 $ 900 $ 3,500