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Basis of Presentation Basis of Presentation (Details) - USD ($)
$ in Thousands
Jun. 27, 2015
Dec. 27, 2014
New Accounting Pronouncement, Early Adoption [Line Items]    
Long-term debt $ (727,888) $ (722,036)
Early Adoption    
New Accounting Pronouncement, Early Adoption [Line Items]    
Long-term debt (7,700) (5,400)
Other assets $ 7,700 $ 5,400