Quarterly report [Sections 13 or 15(d)]

CUSTOMER LIABILITIES - Schedule of customer liabilities (Details)

v3.25.2
CUSTOMER LIABILITIES - Schedule of customer liabilities (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Sep. 30, 2024
Mar. 31, 2025
Revenue, Major Customer [Line Items]      
Total non-interest-bearing accounts $ 2,694,795   $ 2,582,686
Customer liabilities 4,446,747   4,304,999
Term deposits      
Revenue, Major Customer [Line Items]      
Term deposits $ 1,751,952   1,722,313
Term deposits | Minimum      
Revenue, Major Customer [Line Items]      
Debt securities, interest rate during period (in percent) 0.04% 0.05%  
Term deposits | Maximum      
Revenue, Major Customer [Line Items]      
Debt securities, interest rate during period (in percent) 18.00% 18.30%  
Brokerage customers      
Revenue, Major Customer [Line Items]      
Total non-interest-bearing accounts $ 2,180,825   2,167,111
Customer accounts      
Revenue, Major Customer [Line Items]      
Total non-interest-bearing accounts $ 513,970   $ 415,575