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v3.25.3

Basis of Presentation and Accounting Policies - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Accounting Policies [Line Items] |  |  |  |  |  |  |
Percentage of goodwill over fair value exceeded |  |  |  | 10.00% |  |  |
Impairment charges |  | $ 0.0 | $ 0.0 | $ 88.7 | [1] | $ 0.0 |
Goodwill | [2] | $ 1,543.9 |  | $ 1,543.9 |  |  | $ 1,563.4
Europe |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Revenue Growth Percentage |  | 260.00% |  | 260.00% |  |  |
Europe | Terminal Value OUP Margin |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Revenue Growth Percentage |  | 240.00% |  | 240.00% |  |  |
Europe | Maximum [Member] |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Discount rate |  | 1240.00% |  | 1240.00% |  |  |
Europe | Minimum [Member] |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Discount rate |  | 1010.00% |  | 1010.00% |  |  |
Switzerland |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Goodwill |  | $ 35.4 |  | $ 35.4 |  |  |
Discount rate |  | 11.20% |  | 11.20% |  |  |
Revenue percentage |  | 10.50% |  | 10.50% |  |  |
Switzerland | Terminal Value Revenue Growth Rate |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Revenue Growth Percentage |  | 3.00% |  | 3.00% |  |  |
Switzerland | Terminal Value OUP Margin |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Revenue Growth Percentage |  | 4.20% |  | 4.20% |  |  |
Switzerland | Maximum [Member] |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Revenue Growth Percentage |  | 12.40% |  | 12.40% |  |  |
Switzerland | Maximum [Member] | Terminal Value OUP Margin |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Revenue Growth Percentage |  | 4.00% |  | 4.00% |  |  |
Switzerland | Minimum [Member] |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Revenue Growth Percentage |  | 12.00% |  | 12.00% |  |  |
Switzerland | Minimum [Member] | Terminal Value Revenue Growth Rate |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Revenue Growth Percentage |  | 1.00% |  | 1.00% |  |  |
North America |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Revenue Growth Percentage |  | 330.00% |  | 330.00% |  |  |
North America | Terminal Value OUP Margin |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Revenue Growth Percentage |  | 580.00% |  | 580.00% |  |  |
North America | Maximum [Member] |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Discount rate |  | 1080.00% |  | 1080.00% |  |  |
North America | Minimum [Member] |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Discount rate |  | 940.00% |  | 940.00% |  |  |
United Kingdom |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Goodwill |  | $ 77.9 |  | $ 77.9 |  |  |
Discount rate |  | 11.40% |  | 11.40% |  |  |
Revenue percentage |  | 6.60% |  | 6.60% |  |  |
United Kingdom | Terminal Value Revenue Growth Rate |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Revenue Growth Percentage |  | 3.00% |  | 3.00% |  |  |
United Kingdom | Terminal Value OUP Margin |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Revenue Growth Percentage |  | 3.20% |  | 3.20% |  |  |
United Kingdom | Maximum [Member] |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Revenue Growth Percentage |  | 10.00% |  | 10.00% |  |  |
United Kingdom | Minimum [Member] |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Revenue Growth Percentage |  | 8.40% |  | 8.40% |  |  |
Northern Europe | United Kingdom |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Impairment charges |  |  |  | $ 33.4 |  |  |
Southern Europe | Switzerland |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Impairment charges |  |  |  | 24.7 |  |  |
Impairment |  |  |  | $ 30.6 |  |  |
Discount rate |  | 13.70% |  | 13.70% |  |  |
[1] | Impairment charges for the nine months ended September 30, 2025 consist of a goodwill impairment related to our investments in Switzerland and the United Kingdom and an impairment of an indefinite lived intangible asset in our Switzerland business.
[2] | Balances were net of accumulated impairment loss of $807.4 and $749.3 as of September 30, 2025 and December 31, 2024, respectively.

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