v3.26.3
Basis of Presentation and Accounting Policies - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
[1]
Dec. 31, 2025
Accounting Policies [Line Items]          
Percentage of goodwill over fair value exceeded     10.00%    
Impairment charges $ 0.0 $ 0.0 $ 0.0 $ 88.7  
Goodwill [2] 1,481.7   1,481.7   $ 1,544.6
Switzerland          
Accounting Policies [Line Items]          
Goodwill $ 32.4   $ 32.4    
North America | Terminal Value OUP Margin          
Accounting Policies [Line Items]          
Revenue Growth Percentage 4.80%   4.80%    
UNITED STATES          
Accounting Policies [Line Items]          
Discount rate 9.20%   9.20%    
UNITED STATES | Maximum [Member]          
Accounting Policies [Line Items]          
Revenue Growth Percentage 8.00%   8.00%    
UNITED STATES | Minimum [Member]          
Accounting Policies [Line Items]          
Revenue Growth Percentage 3.00%   3.00%    
[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 as of both September 30, 2026 and December 31, 2025.