Quarterly report [Sections 13 or 15(d)]

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

v3.25.3
CASH AND CASH EQUIVALENTS - Schedule of collateralized securities received under reverse repurchase agreements (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Mar. 31, 2025
Cash and cash equivalents    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Up to 30 days $ 100,375 $ 81,118
30-90 days 4,940  
Total $ 105,315 $ 81,118
Non-US sovereign debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 15.47% 15.74%
Non-US sovereign debt | Cash and cash equivalents    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 12.98% 4.48%
Up to 30 days $ 75,442 $ 4,436
30-90 days 4,940  
Total $ 80,382 $ 4,436
Corporate equity    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 16.00% 3.25%
Corporate equity | Cash and cash equivalents    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 13.80% 17.05%
Up to 30 days $ 19,408 $ 58,202
30-90 days 0  
Total $ 19,408 $ 58,202
Corporate debt    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 15.96% 15.95%
Corporate debt | Cash and cash equivalents    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 10.14% 13.27%
Up to 30 days $ 4,478 $ 16,644
30-90 days 0  
Total $ 4,478 $ 16,644
U.S. sovereign debt | Cash and cash equivalents    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Average interest rate 3.50% 16.75%
Up to 30 days $ 1,047 $ 1,836
30-90 days 0  
Total $ 1,047 $ 1,836