Goodwill and Intangible Assets - Schedule of intangible assets subject to amortization (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020	Dec. 31, 2020
Finite-lived Intangible Assets [Roll Forward]
Intangible assets subject to amortization, beginning balance	$ 980,310
Intangible assets acquired during the period	4,628
Currency translation during the period	(31,857)
Intangible assets subject to amortization, ending balance	953,081
Accumulated amortization, beginning balance	755,971
Amortization during the period	7,498	$ 6,876
Currency translation during the period	(25,526)
Accumulated amortization, ending balance	737,943
Intangible assets subject to amortization, net as of April 3, 2021	215,138		$ 224,339
Customer relationships
Finite-lived Intangible Assets [Roll Forward]
Intangible assets subject to amortization, beginning balance	699,795
Intangible assets acquired during the period	0
Currency translation during the period	(19,752)
Intangible assets subject to amortization, ending balance	680,043
Accumulated amortization, beginning balance	481,256
Amortization during the period	7,039
Currency translation during the period	(13,472)
Accumulated amortization, ending balance	474,823
Intangible assets subject to amortization, net as of April 3, 2021	205,220
Patents
Finite-lived Intangible Assets [Roll Forward]
Intangible assets subject to amortization, beginning balance	273,570
Intangible assets acquired during the period	4,628
Currency translation during the period	(12,096)
Intangible assets subject to amortization, ending balance	266,102
Accumulated amortization, beginning balance	273,426
Amortization during the period	123
Currency translation during the period	(12,031)
Accumulated amortization, ending balance	261,518
Intangible assets subject to amortization, net as of April 3, 2021	4,584
Other
Finite-lived Intangible Assets [Roll Forward]
Intangible assets subject to amortization, beginning balance	6,945
Intangible assets acquired during the period	0
Currency translation during the period	(9)
Intangible assets subject to amortization, ending balance	6,936
Accumulated amortization, beginning balance	1,289
Amortization during the period	336
Currency translation during the period	(23)
Accumulated amortization, ending balance	1,602
Intangible assets subject to amortization, net as of April 3, 2021	$ 5,334