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Income Taxes - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 29, 2024 | Dec. 31, 2023 | Jan. 01, 2023 | Jan. 02, 2022
Income Taxes [Line Items] |  |  |  |
Deferred tax assets, net | $ 330.1 | $ 324.8 |  |
Capital loss carryforward | 19.6 | 0.0 |  |
Valuation allowance | 34.2 | 60.5 |  |
Income tax expense (benefit) | (21.3) | (11.5) | $ (7.9) |
Tax exempt life insurance cash surrender | 6.2 | 6.5 | 7.8 |
Undistributed earnings of foreign subsidiaries | 65.6 |  |  |
Unrecognized tax benefits | 0.5 | 0.6 | 0.5 | $ 0.6
Unrecognized tax benefits that would impact effective tax rate | 0.4 | 0.5 | 0.4 |
Unrecognized tax benefits, income tax penalties and interest expense |  | 0.1 |  |
Unrecognized tax benefits, income tax penalties and interest accrued | 0.2 | 0.2 |  |
European Staffing Operations |  |  |  |
Income Taxes [Line Items] |  |  |  |
Valuation allowance, deferred tax asset, increase (decrease), amount | 24.4 | 21.4 |  |
Capital loss carryforward | 19.2 | 19.6 |  |
Expires in 2029 |  |  |  |
Income Taxes [Line Items] |  |  |  |
Operating loss carryforwards | 30.5 |  |  |
Deferred tax assets, operating loss carryforwards, subject to expiration | 19.6 |  |  |
Expire Between 2025 and 2044 |  |  |  |
Income Taxes [Line Items] |  |  |  |
Operating loss carryforwards | 10.9 |  |  |
Deferred tax assets, operating loss carryforwards, subject to expiration | 1.8 |  |  |
Deferred tax assets, operating loss carryforwards, not subject to expiration | 9.1 |  |  |
Pro Forma |  |  |  |
Income Taxes [Line Items] |  |  |  |
Potential repatriation of foreign earnings amount | 4.7 |  |  |
Persol Holdings Investment |  |  |  |
Income Taxes [Line Items] |  |  |  |
Income tax expense (benefit) |  |  | (16.9) |
Assets Held-For-Sale |  |  |  |
Income Taxes [Line Items] |  |  |  |
Income tax expense (benefit) |  | (15.0) |  |
Goodwill |  |  |  |
Income Taxes [Line Items] |  |  |  |
Income tax expense (benefit) | (18.5) |  | $ (7.1) |
U.S. Foreign Tax Credits |  |  |  |
Income Taxes [Line Items] |  |  |  |
Valuation allowance | 15.0 | 14.5 |  |
General Business Tax Credit Carryforward | Expiring In Years 2034 to 2044 |  |  |  |
Income Taxes [Line Items] |  |  |  |
General business credit carryforward | 197.3 |  |  |
Foreign Tax Credit Carryforward | Expiring In Years 2026 to 2034 |  |  |  |
Income Taxes [Line Items] |  |  |  |
General business credit carryforward | $ 33.2 |  |  |
Deferred Tax |  |  |  |
Income Taxes [Line Items] |  |  |  |
Deferred tax assets, net |  | 321.1 |  |
Assets Held-For-Sale |  |  |  |
Income Taxes [Line Items] |  |  |  |
Deferred tax assets, net |  | 4.1 |  |
Other Noncurrent Liabilities |  |  |  |
Income Taxes [Line Items] |  |  |  |
Deferred tax assets, net |  | $ 0.4 |  |

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- Definition Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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