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v3.25.3

Debt - Interest Expense (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Debt Instrument [Line Items] |  |  |  |
Debt issuance cost amortization |  |  | $ 2.7 | $ 4.3
Debt discount amortization |  |  | 6.7 | 28.1
Other interest expense | $ 0.5 | $ 2.2 | 1.6 | 3.0
Total interest expense | 56.3 | 59.1 | 113.7 | 120.9
Senior Indebtedness |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt issuance cost amortization | 0.6 | 0.9 | 1.3 | 1.8
Debt discount amortization | 5.3 | 11.5 | 6.7 | 28.1
Interest expense | 46.7 | 40.4 | 97.7 | 81.7
Total interest expense | 52.6 | 52.8 | 105.7 | 111.6
Convertible debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt issuance cost amortization | 0.7 | 1.4 | 1.4 | 2.5
Interest expense | 2.5 | 2.7 | 5.0 | 3.8
Total interest expense | $ 3.2 | $ 4.1 | $ 6.4 | $ 6.3

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