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Debt (Gain (Loss) on Extinguishment of Debt) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Extinguishment of Debt [Line Items]        
(Gain) loss on extinguishment of debt $ (3.4) $ 0.4 $ (2.1) $ 27.1
Term Loan A        
Extinguishment of Debt [Line Items]        
(Gain) loss on extinguishment of debt     (1.3) 0.0
Senior Notes        
Extinguishment of Debt [Line Items]        
(Gain) loss on extinguishment of debt     3.4 (24.7)
Revolving Credit Facility and Term Loan A        
Extinguishment of Debt [Line Items]        
(Gain) loss on extinguishment of debt     0.0 (1.7)
Term Loan B and Other        
Extinguishment of Debt [Line Items]        
(Gain) loss on extinguishment of debt     $ 0.0 $ (0.7)