Net revenues - Other revenues (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 25, 2022	Sep. 26, 2021	Sep. 25, 2022	Sep. 26, 2021
Revenue, Major Customer [Line Items]
Net revenues	$ 686,788	$ 700,251	$ 2,033,045	$ 2,047,649
Vascular access
Revenue, Major Customer [Line Items]
Net revenues	167,147	175,476	497,188	507,188
Anesthesia
Revenue, Major Customer [Line Items]
Net revenues	97,608	97,074	289,260	277,357
Interventional
Revenue, Major Customer [Line Items]
Net revenues	108,738	104,304	319,939	312,559
Surgical
Revenue, Major Customer [Line Items]
Net revenues	93,124	92,831	282,468	271,402
Interventional urology
Revenue, Major Customer [Line Items]
Net revenues	78,969	83,107	233,682	248,714
OEM
Revenue, Major Customer [Line Items]
Net revenues	71,288	64,083	198,947	178,528
Other
Revenue, Major Customer [Line Items]
Net revenues	$ 69,914	$ 83,376	$ 211,561	$ 251,901