Components of Other Accrued Liabilities (Detail) - USD ($)	Oct. 06, 2018	Dec. 30, 2017	Oct. 07, 2017
Other Liabilities Disclosure [Abstract]
Employee compensation	$ 23,799,000	$ 15,276,000
VSIP liabilities	191,000	25,022,000
Employee vacation	23,699,000	22,638,000
Employee bonus	7,209,000	29,369,000
Fair value of derivative instruments	1,180,000	10,247,000
Insurance	31,140,000	30,052,000
Bank overdraft	9,445,000	5,699,000
Accrued interest	523,000	7,711,000
Accrued taxes	12,053,000	10,943,000
Accrued legal settlements	11,877,000	6,928,000
Accrued legal costs	5,930,000	7,877,000
Multi-employer pension plan withdrawal costs		15,223,000	$ 15,200,000
Accrued short term deferred income	5,326,000	4,940,000
Other	11,568,000	8,543,000
Total	$ 143,940,000	$ 200,468,000