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Restructuring Costs - Schedule of Changes in Restructuring Reserve (Details) - USD ($) $ in Millions | 1 Months Ended | 9 Months Ended
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Jul. 31, 2023 | Sep. 30, 2023
Restructuring Cost and Reserve [Line Items] |  |  |
Balance, beginning of period |  |  | $ 13.2
Severance costs |  | $ 32.2 | 47.1
Other Costs |  |  | 12.1
Costs paid |  |  | (31.7)
Balance, end of period |  |  | 40.7
Reportable segments | Americas |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Balance, beginning of period | [1] |  | 1.0
Severance costs | [1] |  | 7.6
Other Costs | [1] |  | 0.0
Costs paid | [1] |  | (4.4)
Balance, end of period | [1] |  | 4.2
Reportable segments | Southern Europe |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Balance, beginning of period | [2] |  | 1.0
Severance costs | [2] |  | 9.3
Other Costs | [2] |  | 0.9
Costs paid | [2] |  | (3.3)
Balance, end of period | [2] |  | 7.9
Reportable segments | Northern Europe |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Balance, beginning of period |  |  | 11.0
Severance costs |  |  | 26.5
Other Costs |  |  | 11.2
Costs paid |  |  | (21.1)
Balance, end of period |  |  | 27.6
Reportable segments | APME |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Balance, beginning of period |  |  | 0.2
Severance costs |  |  | 3.3
Other Costs |  |  | 0.0
Costs paid |  |  | (2.5)
Balance, end of period |  |  | 1.0
Corporate |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Balance, beginning of period |  |  | 0.0
Severance costs |  |  | 0.4
Other Costs |  |  | 0.0
Costs paid |  |  | (0.4)
Balance, end of period |  |  | $ 0.0
[1] | Balances related to the United States were $0.6 and $2.7 as of December 31, 2022 and September 30, 2023, respectively.
[2] | Balances related to France were $0.9 and 1.7 as of December 31, 2022 and September 30, 2023, respectively. In July 2023, we announced our decision to wind down our Proservia managed services business in Germany. We expect to record significant restructuring expense in the fourth quarter of 2023 related to this wind down. A significant portion of the restructuring costs represent payments to impacted employees. A component of these payments are severance related costs amounting to $32.2 agreed with the applicable work councils in October 2023, which will be recorded in the fourth quarter of 2023. Communications are continuing with impacted parties, and we expect additional restructuring costs to be recorded through the end of the fourth quarter of 2023.

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