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Investments (Investments by Category) (Details) - USD ($)
$ in Millions
Sep. 30, 2022
Mar. 31, 2022
Equity Method Investments, and Investments in Debt and Equity Securities [Abstract]    
Investments in equity method investees $ 62.9 $ 53.9
Other investments 1.6 2.1
Investments $ 64.5 $ 56.0