- Accounts Receivable Allowances (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Allowance for Doubtful Accounts, Premiums and Other Receivables	$ 1,000
Allowance for other credits and incentives [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	97,737	$ 61,359	$ 23,658
Acquired balance	0	0	11,932
Adjustment related to adoption of ASC 606	0	1,192	0
Provision	287,891	198,371	110,605
Deduction	(247,775)	(161,672)	(81,269)
Other adjustments	(3,807)	(1,513)	(3,567)
Balance at end of period	134,046	97,737	61,359
Allowance for product returns [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	53,920	42,693	27,673
Acquired balance	0	0	6,088
Provision	71,575	68,476	54,981
Deduction	(68,217)	(56,164)	(43,831)
Other adjustments	(2,087)	(1,085)	(2,218)
Balance at end of period	$ 55,191	$ 53,920	$ 42,693