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Commitments and contingencies - Schedule of Lease, Cost (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 30, 2024 | Apr. 01, 2023
Commitments and Contingencies Disclosure [Abstract] |  |
Operating lease cost | $ 888 | $ 1,069
Short-term lease cost | 80 | 206
Amortization of finance lease assets | 158 | 235
Interest on lease liabilities | 221 | 137
Total lease cost | 1,347 | 1,647
Cash paid for amounts included in measurement of lease liabilities: |  |
Operating cash flows from operating leases | 1,178 | 1,100
Operating cash flows from financing leases | 221 | 90
Financing cash flows from finance leases | 183 | 37
Right-of-use assets obtained in exchange for lease obligations: |  |
Operating lease obligations | 95 | 225
Financing lease obligations | $ 0 | $ 9,141

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- Definition Amount of interest expense on finance lease liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 53 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479589/842-20-55-53 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-4 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-4 + Details
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