Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 04, 2021	Mar. 29, 2020	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Credit Loss [Line Items]
Cumulative effect of change in accounting principle	$ (845,460)	$ (953,035)	$ (757,051)		$ (965,819)
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Accounts receivable, allowance for credit loss, beginning balance	5,150	2,569
Current period provision	82	(172)
Write-offs	(57)	0
Recoveries collected	(23)	(9)
Fx impact	(17)	(213)
Accounts receivable, allowance for credit loss, ending balance	5,135	3,186
Revision of Prior Period, Accounting Standards Update, Adjustment
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Accounts receivable, allowance for credit loss, beginning balance	0	1,011
Cumulative Effect, Period of Adoption, Adjustment
Credit Loss [Line Items]
Cumulative effect of change in accounting principle					2,916
Retained Earnings
Credit Loss [Line Items]
Cumulative effect of change in accounting principle	$ (477,279)	$ (501,611)	$ (450,876)		(518,004)
Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment
Credit Loss [Line Items]
Cumulative effect of change in accounting principle				$ 2,900	$ 2,916
Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment | Continuing Operations
Credit Loss [Line Items]
Cumulative effect of change in accounting principle				1,000
Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment | Discontinued Operations
Credit Loss [Line Items]
Cumulative effect of change in accounting principle				$ 1,900