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Long-Term Debt and Capital Leases - Credit Facility and Capital Lease (Details) - USD ($)
Jun. 28, 2015
Dec. 28, 2014
Line of Credit Facility [Line Items]    
Maximum borrowing capacity $ 750,000,000  
Available borrowings capacity under letters of credit 555,400,000  
Total capital leases 9,800,000 $ 10,400,000
Capital leases, current 1,300,000 $ 1,300,000
Letter of Credit    
Line of Credit Facility [Line Items]    
Letters of credit, outstanding $ 17,000,000