NET (LOSS)/GAIN ON TRADING SECURITIES - Narrative (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
Mar. 31, 2023 |
|
| Investments, Debt and Equity Securities [Abstract] | |||
| Net gain/(loss) recognized during the period on trading securities sold during the period | $ 65,855 | $ 38,125 | $ (36,226) |
| Net unrealized (loss)/gain recognized during the reporting period on trading securities still held at the reporting date | $ (123,665) | $ 95,729 | $ 107,310 |