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Segment Reporting (Long-lived Assets by Geographic Area) (Details) - USD ($)
$ in Thousands
Dec. 27, 2015
Dec. 28, 2014
Segment reporting information [Line Items]    
Long-lived assets $ 1,758,596 $ 1,806,505
U.S. Member]    
Segment reporting information [Line Items]    
Long-lived assets 1,601,691 1,619,931
International [Member]    
Segment reporting information [Line Items]    
Long-lived assets $ 156,905 $ 186,574