Goodwill and other intangible assets, net - Components of intangible assets (Details) - USD ($) $ in Thousands	Sep. 26, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 3,405,699	$ 3,534,799
Accumulated Amortization	(1,068,450)	(1,015,053)
In-process research and development
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	28,797	29,627
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	1,333,471	1,377,943
Accumulated Amortization	(428,072)	(425,692)
Intellectual property
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	1,442,851	1,458,924
Accumulated Amortization	(540,472)	(479,612)
Distribution rights
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	23,622	23,866
Accumulated Amortization	(20,621)	(20,280)
Trade names
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	553,387	619,847
Accumulated Amortization	(56,462)	(65,955)
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	23,571	24,592
Accumulated Amortization	$ (22,823)	$ (23,514)