Financial instruments - Schedule Of Long-Term Debt Instruments (Details) - USD ($) $ in Thousands	Jul. 01, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Current portion of long-term debt	$ (11,320)	$ (33,056)
Unamortized debt issuance cost	(1,079)	(1,338)
Unamortized discount	(2,481)	(1,308)
Long-term debt, less current portion	374,568	385,010
Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt, gross	$ 7,000	0
Effective interest rate	9.58%
Term Loan
Debt Instrument [Line Items]
Long-term debt, gross	$ 382,448	$ 420,712
Effective interest rate	9.56%