Financial instruments - Schedule Of Long-Term Debt (Details) - USD ($) $ in Thousands	Apr. 02, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Current portion of long-term debt	$ (20,292)	$ (18,038)
Unamortized debt issuance cost	(1,600)	(1,687)
Unamortized discount	(1,309)	(1,381)
Long-term debt, less current portion	348,039	339,644
Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt, gross	$ 15,000	0
Effective interest rate	2.46%
Term Loan
Debt Instrument [Line Items]
Long-term debt, gross	$ 356,240	$ 360,750
Effective interest rate	2.46%

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount, after accumulated amortization, of debt discount.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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