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Basis of Presentation and Accounting Policies - Additional Information (Details)
$ in Millions
 9 Months Ended
Sep. 30, 2022
USD ($)
Dec. 31, 2021
USD ($)
Accounting Policies [Line Items]    
Non-cash impairment charge loss $ 0.0  
Goodwill [1] $ 1,640.4 $ 1,722.2
Netherlands    
Accounting Policies [Line Items]    
Discount rate for goodwill impairment test (as a percent) 12.5  
Netherlands | Terminal Value Revenue Growth Rate    
Accounting Policies [Line Items]    
Discount rate for goodwill impairment test (as a percent) 2.0  
Netherlands | Terminal Value OUP Margin    
Accounting Policies [Line Items]    
Discount rate for goodwill impairment test (as a percent) 4.0  
Northern Europe | United Kingdom    
Accounting Policies [Line Items]    
Goodwill $ 93.4 110.7
Northern Europe | Netherlands    
Accounting Policies [Line Items]    
Goodwill $ 96.8 $ 112.2
Minimum    
Accounting Policies [Line Items]    
Percentage of goodwill over fair value of reporting unit 20.00%  
Minimum | Other Reporting Units    
Accounting Policies [Line Items]    
Percentage of goodwill over fair value of reporting unit 20.00%  
Minimum | Netherlands    
Accounting Policies [Line Items]    
Discount rate for goodwill impairment test (as a percent) 0.30  
Maximum [Member] | Netherlands    
Accounting Policies [Line Items]    
Discount rate for goodwill impairment test (as a percent) 0.84  
[1] Balances were net of accumulated impairment loss of $644.2 as of both September 30, 2022 and December 31, 2021.