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Segment Disclosures - Depreciation and Amortization Expense Included in SG&A Expenses (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
Earnings (loss) from Operations
Depreciation and amortization:	$ (12.6)	$ (14.5)	$ (37.9)	$ (37.2)
Enterprise Talent Management
Earnings (loss) from Operations
Depreciation and amortization:	2.5	4.4	8.4	13.4
Science, Engineering & Technology
Earnings (loss) from Operations
Depreciation and amortization:	8.0	8.0	23.2	17.6
Education
Earnings (loss) from Operations
Depreciation and amortization:	$ 2.1	$ 2.1	$ 6.3	$ 6.2

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- Definition

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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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