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Basis of Presentation and Significant Accounting Policies - Deferred Revenue (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Deferred Revenue Arrangement [Line Items]        
Deferred Revenue $ 110.1 $ 112.3 $ 111.3 $ 110.3
New contracts sold 12.2 14.2    
Revenue recognized on existing contracts (13.4) (12.2)    
Deferred revenue, current 35.2 35.9    
Deferred revenue, noncurrent $ 74.9 $ 76.4