Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands, shares in Millions		1 Months Ended	12 Months Ended
	Jul. 01, 2020	Jan. 31, 2021	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018	Apr. 24, 2020	Dec. 30, 2017
Accounting Policies [Line Items]
Equity Securities without Readily Determinable Fair Value, Amount			$ 17,400	$ 21,000
Allowance for credit loss, period increase (decrease)			3,600
Allowance for credit loss			4,800	1,200
Receivable for recovery of import duties, net			9,900			$ 57,000
Recovery of import duties			36,500
Proceeds from recovery of import duties			47,100
Advertising Expense			145,200	125,000	$ 114,000
Valuation allowance			$ 7,643	$ 3,826	$ 1,100
Antidilutive securities excluded from computation of earnings per share (in shares)			0.2	0.2	0.0
Number of shares (in shares)	0.2
Equity securities, FV-NI, restricted			$ 47,600
Subsequent Event
Accounting Policies [Line Items]
Proceeds from sale of short-term investments		$ 51,500
Customer Concentration Risk | Accounts Receivable | One Customer [Member]
Accounting Policies [Line Items]
Concentration risk percentage			17.60%
Customer Concentration Risk | Accounts Receivable | Two Customers [Member]
Accounting Policies [Line Items]
Concentration risk percentage				26.60%
Customer Concentration Risk | Revenue | Amazon [Member]
Accounting Policies [Line Items]
Concentration risk percentage			22.70%	21.30%	17.30%
Allowance for product returns
Accounting Policies [Line Items]
Valuation allowances and reserves			$ 64,343	$ 55,191	$ 53,920		$ 42,693