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Leases (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 27, 2015
Dec. 28, 2014
Dec. 29, 2013
Leases [Abstract]      
Rent expense, net of sublease income $ 45,592 $ 47,026 $ 44,511
Future minimum rentals, net of minimum sublease income for five years and thereafter [Abstract]      
2015 32,784    
2016 26,683    
2017 24,331    
2018 21,640    
2019 12,921    
Thereafter $ 15,480