v3.26.1
NET INTEREST INCOME/EXPENSE (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Interest income:    
Interest income on margin loans to customers $ 108,190 $ 60,289
Interest income on loans to customers 81,481 61,694
Interest income on trading securities 59,810 52,576
Interest income on securities available-for-sale 20,034 13,383
Interest income on held-to-maturity securities 17,080 5,173
Interest income on reverse repurchase agreements and amounts due from banks 7,585 5,456
Other interest income 926 0
Total interest income 295,106 198,571
Interest expense:    
Interest expense on customer accounts and deposits 86,917 39,332
Interest expense on securities repurchase agreement obligations 48,176 45,461
Interest expense on debt securities issued 33,234 13,751
Interest expense on margin lending payable 6,889 13,374
Interest expense on loans received 2,061 510
Other interest expense 286 982
Total interest expense 177,563 113,410
Net interest income $ 117,543 $ 85,161