Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Long-Term Debt - Schedule of Long-term Debt Instruments (Details)

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Long-Term Debt - Schedule of Long-term Debt Instruments (Details)
€ in Millions, $ in Millions
12 Months Ended
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Mar. 31, 2022
EUR (€)
Debt Instrument [Line Items]      
Unamortized debt issuance costs: $ (9.1) $ (9.7)  
Total Long-term debt $ 877.3 $ 858.6  
Weighted average interest rate of Long-term debt 4.20% 4.30% 4.20%
Weighted average term of available Long-term debt 5 years 4 years 6 months  
Senior Notes      
Debt Instrument [Line Items]      
Long-term debt, gross $ 846.4 $ 868.3  
Senior Notes | Level 1      
Debt Instrument [Line Items]      
Fair value of Senior unsecured notes (Level 1) 845.1 904.7  
Line of Credit | Revolving Credit Facility      
Debt Instrument [Line Items]      
Long-term debt, gross $ 40.0 0.0  
3.625% Senior Unsecured Notes Due 2026 | Senior Notes      
Debt Instrument [Line Items]      
Interest rate (as percent) 3.625%   3.625%
Long-term debt, gross $ 446.4 468.3 € 400
5.000% Senior Unsecured Notes Due 2028 | Senior Notes      
Debt Instrument [Line Items]      
Interest rate (as percent) 5.00%   5.00%
Long-term debt, gross $ 400.0 $ 400.0