Annual report pursuant to Section 13 and 15(d)

TRADING AND AVAILABLE-FOR-SALE SECURITIES AT FAIR VALUE - Schedule of amortized cost, unrealized gains and losses accumulated in other comprehensive income, and fair value of available-for-sale securities (Details)

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TRADING AND AVAILABLE-FOR-SALE SECURITIES AT FAIR VALUE - Schedule of amortized cost, unrealized gains and losses accumulated in other comprehensive income, and fair value of available-for-sale securities (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Mar. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Assets measured at amortized cost $ 218,577 $ 243,014
Recognized impairment loss in Income Statement (413) (402)
Unrealized gain/(loss) accumulated in other comprehensive income/(loss) (1,543) (3,559)
Available-for-sale securities, at fair value 216,621 239,053
Non-U.S. sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Assets measured at amortized cost 29,121 42,456
Recognized impairment loss in Income Statement (352) 0
Unrealized gain/(loss) accumulated in other comprehensive income/(loss) (1,753) (2,294)
Available-for-sale securities, at fair value 27,016 40,162
U.S. sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Assets measured at amortized cost 16,767 8,391
Recognized impairment loss in Income Statement 0 0
Unrealized gain/(loss) accumulated in other comprehensive income/(loss) (730) (582)
Available-for-sale securities, at fair value 16,037 7,809
Corporate debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Assets measured at amortized cost 172,689 192,167
Recognized impairment loss in Income Statement (61) (402)
Unrealized gain/(loss) accumulated in other comprehensive income/(loss) 940 (683)
Available-for-sale securities, at fair value $ 173,568 $ 191,082