Accrued Expenses and Other Long-Term Liabilities - Accrued Expenses and Other Long-Term Liabilities (Detail) - USD ($) $ in Thousands	Dec. 30, 2017	Dec. 31, 2016
Accrued expenses and other current liabilities:
Salary, wages and bonus expenses	$ 161,106	$ 156,999
Operating expenses	67,764	71,140
Workers’ compensation, general and fleet liability	49,081	46,482
Group medical liability	28,974	27,480
Customer rebates and other selling expenses	85,210	80,223
Restructuring	4,586	22,623
Property and sales tax	28,478	25,032
Interest payable	5,578	3,469
Other	19,965	22,367
Total accrued expenses and other current liabilities	450,742	455,815
Other long-term liabilities:
Workers’ compensation, general and fleet liability	121,270	117,890
Accrued pension and other postretirement benefit obligations	130,511	172,895
Unfunded lease obligation	24,138	26,757
Uncertain tax positions	81,237	11,115
Restructuring	749	838
Other	13,631	21,434
Total Other long-term liabilities	$ 371,536	$ 350,929