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RESTRICTED CASH (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Mar. 31, 2025
--- | --- | ---
Cash and Cash Equivalents [Line Items] |  |
Restricted cash | $ 1,312,229 | $ 807,468
Allowance for restricted cash | (15,919) | (15,153)
Brokerage customers’ cash |  |
Cash and Cash Equivalents [Line Items] |  |
Restricted cash | 1,206,236 | 737,546
Guaranty deposits |  |
Cash and Cash Equivalents [Line Items] |  |
Restricted cash | 106,636 | 70,026
Restricted bank accounts |  |
Cash and Cash Equivalents [Line Items] |  |
Restricted cash | 8,716 | 8,122
Due from banks |  |
Cash and Cash Equivalents [Line Items] |  |
Restricted cash | 6,537 | 6,904
Deferred distribution payment |  |
Cash and Cash Equivalents [Line Items] |  |
Restricted cash | $ 23 | $ 23

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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. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-8 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
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