RESTRICTED CASH - Narrative (Details) - USD ($) $ in Thousands |
Mar. 31, 2026 |
Mar. 31, 2025 |
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| Restricted Cash and Cash Equivalent Item [Line Items] | ||
| Restricted cash | $ 1,246,312 | $ 807,468 |
| Brokerage customers' cash | ||
| Restricted Cash and Cash Equivalent Item [Line Items] | ||
| Restricted cash | 1,095,026 | 737,546 |
| Single Non-Related Prime Broker | Brokerage customers' cash | ||
| Restricted Cash and Cash Equivalent Item [Line Items] | ||
| Restricted cash | $ 684,476 | $ 368,196 |
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- Definition Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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