Schedule II - Valuation and Qualifying Accounts and Reserves (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 29, 2019	Dec. 30, 2018
Allowance for Doubtful Accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	$ 13,782	$ 9,141	$ 7,606
Additions charged to expenses and as reductions to net sales	14,265	9,769	9,964
Deductions	(6,427)	(5,128)	(8,429)
Ending balance	21,620	13,782	9,141
Valuation Allowance for Deferred Tax Assets
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	7,190	5,899	4,337
Additions charged to expenses and as reductions to net sales	163	1,291	1,562
Deductions credited to expense	(2,028)	0	0
Ending balance	$ 5,325	$ 7,190	$ 5,899