MARGIN LENDING AND TRADE PAYABLES - Schedule of trade payables (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Mar. 31, 2026 |
|---|---|---|
| Regulatory Liabilities [Line Items] | ||
| Margin lending and trade payables | $ 594,005 | $ 689,641 |
| Margin lending payables | ||
| Regulatory Liabilities [Line Items] | ||
| Margin lending and trade payables | 539,273 | 625,136 |
| Payables to suppliers of goods and services | ||
| Regulatory Liabilities [Line Items] | ||
| Margin lending and trade payables | 44,971 | 45,634 |
| Payables to merchants | ||
| Regulatory Liabilities [Line Items] | ||
| Margin lending and trade payables | 4,254 | 10,400 |
| Other | ||
| Regulatory Liabilities [Line Items] | ||
| Margin lending and trade payables | $ 5,507 | $ 8,471 |