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Fair Value of Assets and Liabilities (Additional Information) (Detail) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Allowance for Doubtful Accounts Receivable, Current $ 28,489 $ 26,096
Carrying value of debt 4,522,198 3,993,267
Fair Value, Inputs, Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of debt $ 4,495,967 $ 4,093,229