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Income Taxes - Components of Provision for Income Taxes (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Current      
Federal $ 3.5 $ 2.0 $ (11.9)
State and local 0.3 0.5 0.1
Foreign 34.0 20.2 49.3
Total current 37.8 22.7 37.5
Deferred      
Federal (40.7) (60.0) (73.5)
State and local (0.9) (0.7) (1.5)
Foreign (0.9) (11.2) (11.4)
Total deferred (42.5) (71.9) (86.4)
Total income tax benefit $ (4.7) $ (49.2) $ (48.9)