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Defined Benefit Plans - Amounts Recognized in Consolidated Balance Sheets (Detail) - USD ($) $ in Millions	Dec. 28, 2024	Dec. 30, 2023
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Other current liabilities	$ (1.6)	$ (1.3)
Other non-current liabilities	(27.8)	(40.4)
Net amount recognized	(29.4)	(41.7)
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Other current liabilities	(1.0)	(1.1)
Other non-current liabilities	(4.6)	(6.9)
Net amount recognized	$ (5.6)	$ (8.0)

X

- Definition

Amount of asset (liability), recognized in statement of financial position, for defined benefit pension and other postretirement plans.

+ References

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-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 45
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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.

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- Definition

Amount of liability, recognized in statement of financial position, for defined benefit other postretirement plan, classified as noncurrent. Excludes pension plan.

+ References

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as current.

+ References

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