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Other Income (Expense), Net - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 03, 2022 | Apr. 03, 2022 | Jul. 03, 2022 | Jul. 04, 2021
Other Income (Expense) [Line Items] |  |  |  |
Foreign currency transaction gain |  |  | $ 5.5 | $ 0.0
Brazil |  |  |  |
Other Income (Expense) [Line Items] |  |  |  |
Increase to indemnification liability | $ 0.8 |  | 0.8 |
Kelly Services Japan, Inc. |  |  |  |
Other Income (Expense) [Line Items] |  |  |  |
Foreign currency transaction gain |  | $ 5.5 | $ 5.5 |

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