Segment information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 25, 2022	Sep. 26, 2021	Sep. 25, 2022	Sep. 26, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	$ 686,788	$ 700,251	$ 2,033,045	$ 2,047,649
Operating profit	132,445	240,975	371,138	473,029
Operating segments
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating profit	155,975	173,937	456,832	475,142
Unallocated expenses
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating profit	(23,530)	67,038	(85,694)	(2,113)
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	405,038	417,330	1,195,739	1,207,608
Americas | Operating segments
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating profit	107,180	112,476	318,548	301,457
EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	128,437	143,882	410,535	442,264
EMEA | Operating segments
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating profit	7,472	19,566	29,291	65,862
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	82,025	74,956	227,824	219,249
Asia | Operating segments
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating profit	22,885	27,536	61,796	65,640
OEM
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	71,288	64,083	198,947	178,528
OEM | Operating segments
Revenues from External Customers and Long-Lived Assets [Line Items]
Operating profit	$ 18,438	$ 14,359	$ 47,197	$ 42,183