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Accrued Expenses and Other Long-Term Liabilities - Summary of Self-Insurance Liability (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Jan. 02, 2016
Dec. 27, 2014
Payables And Accruals [Abstract]      
Balance at beginning of the year $ 172,243 $ 160,904 $ 153,568
Charged to costs and expenses 59,366 77,242 65,025
Payments (67,237) (65,903) (57,689)
Balance at end of the year $ 164,372 $ 172,243 $ 160,904
Discount rate 1.47% 0.82% 0.60%