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v3.23.3

Debt - Unamortized Discount and Debt Issuance Costs (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Mar. 31, 2023
--- | --- | ---
Debt Instrument [Line Items] |  |
Total unamortized discount | $ (10.6) | $ (10.4)
Total debt issuance costs | (12.8) | (16.3)
Senior Indebtedness | 4.333% 2023 Notes |  |
Debt Instrument [Line Items] |  |
Total unamortized discount | 0.0 | (0.2)
Total debt issuance costs | 0.0 | (0.4)
Senior Indebtedness | 2.670% 2023 Notes |  |
Debt Instrument [Line Items] |  |
Total unamortized discount | 0.0 | (0.4)
Total debt issuance costs | 0.0 | (0.2)
Senior Indebtedness | 0.972% 2024 Notes |  |
Debt Instrument [Line Items] |  |
Total unamortized discount | (0.5) | (1.2)
Total debt issuance costs | (0.3) | (0.6)
Senior Indebtedness | 0.983% 2024 Notes |  |
Debt Instrument [Line Items] |  |
Total unamortized discount | (0.9) | (1.3)
Total debt issuance costs | (0.4) | (0.8)
Senior Indebtedness | 4.250% 2025 Notes |  |
Debt Instrument [Line Items] |  |
Total unamortized discount | (5.9) | (7.3)
Total debt issuance costs | (0.8) | (0.9)
Senior Convertible Debt | 2017 Senior Convertible Debt |  |
Debt Instrument [Line Items] |  |
Total debt issuance costs | (0.2) | (0.4)
Senior Convertible Debt | 2020 Senior Convertible Debt |  |
Debt Instrument [Line Items] |  |
Total debt issuance costs | (3.1) | (4.4)
Commercial Paper |  |
Debt Instrument [Line Items] |  |
Total unamortized discount | (3.3) | 0.0
Revolving Credit Facility | Line of Credit |  |
Debt Instrument [Line Items] |  |
Total debt issuance costs | (7.1) | (8.6)
Term Loan Facility | Line of Credit |  |
Debt Instrument [Line Items] |  |
Total debt issuance costs | $ (0.9) | $ 0.0

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