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Business Acquisitions - Sunrise, Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
May. 05, 2015
Jun. 27, 2015
Jun. 27, 2015
Jun. 28, 2014
Business Acquisition [Line Items]        
Gain on bargain purchase     $ (9,878) $ 0
Sunrise        
Business Acquisition [Line Items]        
Preliminary purchase price $ 9,558      
Gain on bargain purchase (9,878)      
Cash acquired $ 100      
Price allocation adjustment period, maximum 1 year      
Transaction and integration costs   $ 300 $ 600  
Client relationships | Sunrise        
Business Acquisition [Line Items]        
Useful life of intangible assets acquired     15 years