Income Taxes (Details) $ in Thousands, kr in Millions	3 Months Ended
	Mar. 30, 2024 USD ($)	Mar. 30, 2024 NOK (kr)	Apr. 01, 2023 USD ($)
Income Taxes
Income tax expense (benefit)	$ (385)		$ 7,753
Effective income tax rate (as a percent)	(0.70%)	(0.70%)	35.70%
Unrecognized tax benefits	$ 5,900
Gross unrecognized tax benefits which would affect the effective tax rate if recognized	5,300
Reasonably possible decrease in unrecognized tax benefits	1,900
Norwegian Tax Administration | Tax Year 2013 | Pending Litigation
Income Taxes
Estimate of additional income tax expense	$ 13,000	kr 141.3