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Leases - Schedule of Components of Lease Expense (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Finance lease cost:    
Amortization of right-of-use assets $ 0.1 $ 0.1
Net finance lease cost 0.1 0.1
Operating lease cost 4.5 5.9
Variable lease cost 0.1 0.1
Sublease income (0.2) (0.2)
Total lease cost $ 4.5 $ 5.9