v3.26.1
INVESTMENT SECURITIES - Schedule of maturity of trading and available-for-sale securities (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Mar. 31, 2026
Total available-for-sale securities, at fair value    
Up to 1 year $ 103,824 $ 43,142
1-5 years 352,915 284,379
5-10 years 223,266 239,869
More than 10 years 6,779 6,648
Total 686,784 574,038
Total held-to-maturity securities    
Up to 1 year 0 0
1-5 years 195,247 195,701
5-10 years 150,676 138,207
More than 10 years 175,598 95,515
Total held-to-maturity securities 521,521 429,423
Corporate debt    
Total available-for-sale securities, at fair value    
Up to 1 year 42,944 24,824
1-5 years 320,996 210,742
5-10 years 55,087 72,497
More than 10 years 3,663 3,541
Total 422,690 311,604
Total held-to-maturity securities    
Up to 1 year 0  
1-5 years 0  
5-10 years 35,326  
More than 10 years 0  
Total held-to-maturity securities 35,326  
Non-US sovereign debt    
Total available-for-sale securities, at fair value    
Up to 1 year 49,837 7,378
1-5 years 22,043 63,767
5-10 years 168,179 167,372
More than 10 years 1,950 1,936
Total 242,009 240,453
Total held-to-maturity securities    
Up to 1 year 0 0
1-5 years 195,247 195,701
5-10 years 115,350 138,207
More than 10 years 175,598 95,515
Total held-to-maturity securities 486,195 429,423
U.S. sovereign debt    
Total available-for-sale securities, at fair value    
Up to 1 year 11,043 10,940
1-5 years 9,876 9,870
5-10 years 0 0
More than 10 years 1,166 1,171
Total $ 22,085 $ 21,981