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Debt - Term Loan and Amendment Agreement (Details) - USD ($)
$ in Millions
Oct. 22, 2021
May 16, 2021
Sep. 07, 2018
Oct. 20, 2017
Dec. 31, 2021
Dec. 31, 2020
Term Loan Facility            
Debt Instrument [Line Items]            
Retirement of existing debt outstanding       $ 280.0    
Cost associated with debt       19.5    
Dividends to equity holders       160.0    
Write-off unamortized deferred financing costs       21.7    
Aggregate principal amount       425.0    
Term Loan B-1 facility            
Debt Instrument [Line Items]            
Retirement of existing debt outstanding   $ 35.0        
Cost associated with debt     $ 3.7      
Dividends to equity holders     115.0      
Aggregate principal amount     85.8     $ 85.8
Payment of one or more restricted payments to shareholders     $ 115.0      
Number of business days within which dividend was paid     5 days      
Term B Facility            
Debt Instrument [Line Items]            
Aggregate principal amount           425.0
Revolving Credit Facility            
Debt Instrument [Line Items]            
Retirement of existing debt outstanding $ 15.0 $ 15.0        
Debt available borrowing capacity         $ 12.3  
Maximum borrowing capacity       30.0   $ 30.0
Apollo Global Securities, LLC | Term Loan Facility            
Debt Instrument [Line Items]            
Cost associated with debt       $ 4.6