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Leases - Summary of Changes in ROU Assets (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Changes in Right-of-Use Assets [Roll Forward]    
Balance, beginning of period $ 30.3 $ 29.5
Additions 36.8 19.0
ROU assets from the Acquisition (Note 8) 77.0 0.0
Depreciation, right-of-use assets (39.2) (15.0)
Dispositions (Note 9) (9.0) 0.0
Other 4.7 (3.2)
Balance, end of period $ 100.6 $ 30.3