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

INVESTMENT SECURITIES - Schedule of held to maturity, amortized cost to fair value (Details)

v3.26.1
INVESTMENT SECURITIES - Schedule of held to maturity, amortized cost to fair value (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Mar. 31, 2025
Schedule of Held-to-Maturity Securities [Line Items]    
Total $ 429,423 $ 65,860
Gross unrecognized holding gains 26,423 332
Gross unrecognized holding losses (6,181) (1,240)
Fair value of held-to-maturity 449,665 64,952
Non-US sovereign debt    
Schedule of Held-to-Maturity Securities [Line Items]    
Total 429,423 65,860
Gross unrecognized holding gains 26,423 332
Gross unrecognized holding losses (6,181) (1,240)
Fair value of held-to-maturity $ 449,665 $ 64,952