v3.25.1
Leases - Components of Lease Cost (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Finance lease cost:    
Amortization of right-of-use assets $ 0.7 $ 0.7
Interest on lease liabilities 0.7 0.7
Operating lease cost 19.9 18.2
Variable lease cost 2.1 2.0
Short-term lease cost 0.0 0.0
Sublease income (24.5) (27.2)
Lease income $ (1.1) $ (5.5)