Debt - Long-Term Debt and the Current Period Interest Rates (Details) - Line of Credit - USD ($) $ in Millions	Mar. 26, 2023	Dec. 25, 2022
Line of Credit Facility [Line Items]
Total debt	$ 256.2	$ 257.5
Less current portion	5.0	6.3
Total long-term debt, less current portion	$ 251.2	$ 251.2
Current period interest rate	7.00%	6.40%
Secured debt
Line of Credit Facility [Line Items]
Total debt	$ 196.2	$ 197.5
Unamortized debt issuance costs	0.9	1.0
Total long-term debt, net of unamortized debt issuance costs - term loans	250.3	250.2
Revolving Credit Facility
Line of Credit Facility [Line Items]
Total debt	60.0	60.0
Unamortized debt issuance costs	$ 1.0	$ 1.0