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

INVESTMENT SECURITIES - Schedule of reconciliation of the beginning and ending balance for investments that use Level 3 inputs (Details)

v3.26.1
INVESTMENT SECURITIES - Schedule of reconciliation of the beginning and ending balance for investments that use Level 3 inputs (Details) - Trading securities - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value, beginning balance $ 18,320 $ 20,442
Purchase of investments that use Level 3 inputs 2,222  
Revaluation of investments that use Level 3 inputs 633 (2,122)
Reclassification to investment in associate 1,093  
Foreign currency translation 7  
Fair value, ending balance $ 22,275 $ 18,320