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Derivative Instruments and Hedging Activities - Narrative (Details) - USD ($) $ in Millions | 1 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2024 | May 31, 2022 | Dec. 31, 2024 | Mar. 31, 2024 | Mar. 31, 2023
Derivative [Line Items] |  |  |  |  |
Foreign currency cash flow hedge gains estimated to be reclassified into earnings during next 12 months | $ 1.3 |  | $ 1.3 |  |
Interest rate swap cash flow hedge gain estimated to be reclassified into earnings during next 12 months | 26.7 |  | $ 26.7 |  |
Remaining maturity of forward foreign exchange contracts, maximum |  |  | 16 months |  |
Interest Rate Swaption | Not Designated as Hedging Instrument | Cash Flow Hedging |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Derivative amount received on termination of certain contracts |  | $ 56.4 |  |  |
Reduction in the asset value of the derivative due to termination |  | 188.7 |  |  |
Reduction in the liability value of the derivative due to termination |  | 131.3 |  |  |
Cash flow on termination of derivatives classified as operating activities |  | 188.7 |  |  |
Payment towards derivative instruments classified as financing activities |  | 134.5 |  |  |
Other payments derivative instruments |  | $ 3.2 |  |  |
Interest Rate Swaption | Designated as Hedging Instrument | Cash Flow Hedging |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Interest rate derivative liability |  |  |  |  | $ 6.8
Forward exchange contracts | Cash Flow Hedging |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Foreign currency cash flow hedge gains estimated to be reclassified into earnings during next 12 months |  |  |  | $ 1.5 |
Interest rate swaps | Cash Flow Hedging |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Interest rate swap cash flow hedge gain estimated to be reclassified into earnings during next 12 months |  |  |  | $ 30.4 |
Interest rate swaps | Designated as Hedging Instrument |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Unrealized Gain (Loss) on Derivatives | $ 9.4 |  |  |  |

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