Schedule II - Valuation and Qualifying Accounts and Reserves (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Allowance for losses on accounts receivable
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 1,062	$ 1,172	$ 2,079
Charged to Costs and Expenses	410	319	3,068
Deductions	(172)	(557)	(4,070)
Other	10	128	95
Balance at End of Year	1,310	1,062	1,172
Reserves for sales discounts and allowances
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	34,976	26,344	23,825
Charged to Costs and Expenses	133,434	124,638	106,781
Deductions	(127,330)	(118,438)	(104,941)
Other	(347)	2,432	679
Balance at End of Year	$ 40,733	$ 34,976	$ 26,344