Quarterly report pursuant to Section 13 or 15(d)

RELATED PARTY TRANSACTIONS - Narrative (Details)

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RELATED PARTY TRANSACTIONS - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Mar. 31, 2024
Related Party Transaction [Line Items]          
Margin lending, brokerage and other receivables, net $ 2,037,673   $ 2,037,673   $ 1,660,275
General and administrative expense 73,437 $ 32,106 171,782 $ 86,211  
Related party          
Related Party Transaction [Line Items]          
Margin lending, brokerage and other receivables, net 22,391   22,391   $ 22,039
General and administrative expense $ 7,892 $ 1,502 $ 16,864 $ 9,063  
Percentage of other assets that are prepayments on future acquisitions 58.00%   58.00%   58.00%
Fresh Start Trading Ltd | Related party | Lending services          
Related Party Transaction [Line Items]          
Margin lending, brokerage and other receivables, net         $ 12,890
Fresh Start Trading Ltd | Related party | Brokerage services          
Related Party Transaction [Line Items]          
Percentage of customer liabilities due from related parties as deposits         24.00%
Kazakhstan Chess Federation | Related party | Preparation services          
Related Party Transaction [Line Items]          
General and administrative expense $ 3,401   $ 9,753    
Turlov Family Office Securites LTD | Related party | Bank deposits          
Related Party Transaction [Line Items]          
Percentage of customer liabilities due from related parties as deposits 18.00%   18.00%   7.00%