Debt (Schedule of Applicable Interest Rates on Variable-rate Debt) (Details) - USD ($) $ in Millions		Jun. 27, 2025	Dec. 27, 2024	Nov. 14, 2023
Schedule of Applicable Interest Rate on Variable-rate Debt [Line Items]
Total Debt		$ 907.1	$ 915.6
Debt Instrument, Face Amount		$ 863.6	$ 865.6
Fourteen Point Seven Five Percent Second-Out Takeback Notes
Schedule of Applicable Interest Rate on Variable-rate Debt [Line Items]
Debt Instrument, Face Amount				$ 778.6
First-Out Takeback Term Loan Due November 2028
Schedule of Applicable Interest Rate on Variable-rate Debt [Line Items]
Debt Instrument, Face Amount				229.4
Second-Out Takeback Term Loan Due November 2028
Schedule of Applicable Interest Rate on Variable-rate Debt [Line Items]
Long-term Debt, Weighted Average Interest Rate, at Point in Time	[1]	13.51%
Debt Instrument, Face Amount				$ 642.0
Fixed-rate instruments
Schedule of Applicable Interest Rate on Variable-rate Debt [Line Items]
Long-term Debt, Weighted Average Interest Rate, at Point in Time		14.75%

[1] Includes the impact of the interest rate cap agreement, which is discussed further in Note 14.