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

CASH AND CASH EQUIVALENTS - Schedule of collateralized securities received under reverse repurchase agreements (Details)

v3.26.1
CASH AND CASH EQUIVALENTS - Schedule of collateralized securities received under reverse repurchase agreements (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Mar. 31, 2025
Cash and cash equivalents    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Up to 30 days $ 207,893 $ 81,118
Total $ 207,893 $ 81,118
Corporate equity    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 16.25% 3.25%
Corporate equity | Cash and cash equivalents    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 17.78% 17.05%
Up to 30 days $ 127,652 $ 58,202
Total $ 127,652 $ 58,202
Non-US sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 17.87% 15.74%
Non-US sovereign debt | Cash and cash equivalents    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 13.15% 4.48%
Up to 30 days $ 66,295 $ 4,436
Total $ 66,295 $ 4,436
Corporate debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 17.78% 15.95%
Corporate debt | Cash and cash equivalents    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 7.79% 13.27%
Up to 30 days $ 13,946 $ 16,644
Total $ 13,946 $ 16,644
US sovereign debt | Cash and cash equivalents    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate   16.75%
Up to 30 days   $ 1,836
Total   $ 1,836