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Held for Sale - Narrative (Details) - USD ($) $ in Millions		12 Months Ended
	Jan. 02, 2024	Dec. 31, 2023	Jan. 01, 2023	Jan. 02, 2022
Discontinued Operations and Disposal Groups [Abstract]
Cash and equivalents		$ 33.5	$ 0.0	$ 0.0
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and equivalents		33.5	0.0	0.0
Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture of businesses	$ 110.6
Disposal Group, Held-for-Sale, Not Discontinued Operations | European Staffing Operations
Discontinued Operations and Disposal Groups [Abstract]
Cash and equivalents		33.5
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group, including discontinued operation, revenue		1.5	$ 9.3	$ 8.2
Cash and equivalents		$ 33.5
Disposal Group, Held-for-Sale, Not Discontinued Operations | European Staffing Operations | Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture of businesses	$ 110.6

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Amount classified as cash and cash equivalents attributable to disposal group held for sale or disposed of.

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-Name Accounting Standards Codification
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Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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