Financial Instruments and Fair Value Measurements (Schedule of Carrying Amount and Fair Value of Long-term Debt) (Details) - USD ($) $ in Millions	Mar. 28, 2025	Dec. 27, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Total debt, fair value	$ 903.5	$ 927.0
Long-term Debt	907.4	911.7
Total Debt	911.3	915.6
Receivables Financing Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term Debt	0.0	0.0
Fourteen Point Seven Five Percent Second-Out Takeback Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term Debt	503.5	505.4
Secured Debt	503.5
Second-Out Takeback Term Loan Due November 2028
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term Debt	403.9	406.3
Secured Debt	407.8	410.2
Level 1 \| Fourteen Point Seven Five Percent Second-Out Takeback Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Total debt, fair value	500.3	511.6
Level 2 \| Second-Out Takeback Term Loan Due November 2028
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Total debt, fair value	$ 403.2	$ 415.4

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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- Definition

Represents the aggregate of total long-term debt, including current maturities and short-term debt.

+ References

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- Definition

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.

+ References

No definition available.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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