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Restructuring and Related Activities (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jul. 03, 2021	Jul. 04, 2020	Dec. 31, 2019	Jul. 03, 2021	Jul. 04, 2020	Dec. 31, 2020
Restructuring Reserve [Roll Forward]
Restructuring and severance costs	$ 0	$ 743		$ 0	$ 743
2019 Global Cost Reduction and Management Rejuvenation Programs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, current	2,326			2,326
Restructuring reserve, noncurrent	1,150			1,150
Restructuring Reserve [Roll Forward]
Restructuring and severance costs			$ 24,139			$ 743
Cash paid			(1,330)	(9,962)		(10,813)
Foreign currency translation			35	(19)		683
Balance at end of period	3,476		$ 22,844	3,476		$ 13,457
Expected restructuring costs	$ 24,882			$ 24,882