Annual report [Section 13 and 15(d), not S-K Item 405]

MARGIN LENDING, BROKERAGE AND OTHER RECEIVABLES, NET - Schedule of brokerage and other receivables (Details)

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MARGIN LENDING, BROKERAGE AND OTHER RECEIVABLES, NET - Schedule of brokerage and other receivables (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Mar. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total margin lending, brokerage and other receivables, net $ 4,690,782 $ 3,319,145
Allowance for receivables (19,959) (19,256)
Margin lending receivables    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total margin lending, brokerage and other receivables, net 4,632,506 3,294,569
Receivables from telecommunication services    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total margin lending, brokerage and other receivables, net 11,805 9,985
Bank commissions receivable    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total margin lending, brokerage and other receivables, net 7,337 7,529
Bond coupon receivable and dividends accrued    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total margin lending, brokerage and other receivables, net 9,785 6,832
Receivables from brokerage customers    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total margin lending, brokerage and other receivables, net 1,797 2,399
Other receivables    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total margin lending, brokerage and other receivables, net $ 47,511 $ 17,087