NET (LOSS)/GAIN ON TRADING SECURITIES - Schedule of net gain on trading securities (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 |
| Net (loss)/gain recognized during the period on trading securities | $ (57,810) | $ 133,854 | $ 71,084 |