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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. 29, 2024 | Oct. 01, 2023 | Sep. 29, 2024 | Oct. 01, 2023
Earnings (loss) from Operations |  |  |  |
Depreciation and amortization: | $ 14.5 | $ 10.0 | $ 37.2 | $ 29.7
Professional & Industrial |  |  |  |
Earnings (loss) from Operations |  |  |  |
Depreciation and amortization: | 2.5 | 2.0 | 7.6 | 5.9
Science, Engineering & Technology |  |  |  |
Earnings (loss) from Operations |  |  |  |
Depreciation and amortization: | 8.1 | 4.0 | 18.0 | 11.9
Education |  |  |  |
Earnings (loss) from Operations |  |  |  |
Depreciation and amortization: | 2.1 | 2.0 | 6.2 | 5.8
Outsourcing & Consulting |  |  |  |
Earnings (loss) from Operations |  |  |  |
Depreciation and amortization: | 1.8 | 1.4 | 5.4 | 4.3
International |  |  |  |
Earnings (loss) from Operations |  |  |  |
Depreciation and amortization: | $ 0.0 | $ 0.6 | $ 0.0 | $ 1.8

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