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Summary of Significant Accounting Policies - Narrative (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Dec. 31, 2022
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]              
Total revenues         $ 1,981.1 $ 2,026.0 $ 1,636.9
Foreign currency transaction losses         (1.2) 4.8 (7.5)
Restricted cash $ 0.6 $ 0.6   $ 0.6 0.6 0.6 0.6
Acquisition costs         0.0 0.0 45.5
Goodwill impairment expense 0.0 0.0   $ 0.0 $ 0.0 401.0 0.0
Software useful life         7 years    
Amortization of capitalized software         $ 3.2 5.0 4.4
Accumulated amortization of capitalized software costs $ 33.5 $ 30.9     33.5 30.9  
Foreign currency translation adjustments (losses)         133.8    
Deferred gain released from AOCL         $ 8.9    
Restricted Stock Plan              
Schedule of Equity Method Investments [Line Items]              
Plan performance period (years)         3 years    
ATM              
Schedule of Equity Method Investments [Line Items]              
Goodwill impairment expense     $ 401.0   $ 401.0    
Minimum | Restricted Stock              
Schedule of Equity Method Investments [Line Items]              
Share based compensation vesting period (years)         1 year    
Minimum | Customer relationships              
Schedule of Equity Method Investments [Line Items]              
Estimated useful life 12 years       12 years    
Minimum | Acquired and developed technology              
Schedule of Equity Method Investments [Line Items]              
Estimated useful life 4 years       4 years    
Maximum | Restricted Stock              
Schedule of Equity Method Investments [Line Items]              
Share based compensation vesting period (years)         3 years    
Maximum | Customer relationships              
Schedule of Equity Method Investments [Line Items]              
Estimated useful life 23 years       23 years    
Maximum | Acquired and developed technology              
Schedule of Equity Method Investments [Line Items]              
Estimated useful life 23 years       23 years    
Other Operating Income (Expense)              
Schedule of Equity Method Investments [Line Items]              
Foreign currency transaction losses         $ 3.0 1.7 1.8
Royalty              
Schedule of Equity Method Investments [Line Items]              
Total revenues         $ 0.0 $ 4.4 $ 6.9