v3.26.3
BORROWINGS - Schedule of Notes (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Debt Instrument [Line Items]        
Weighted average interest rate 5.61% 5.49% 5.57% 5.47%
Average borrowings $ 1,331,300 $ 991,700 $ 1,247,400 $ 969,300
October 2026 Notes | Notes        
Debt Instrument [Line Items]        
Interest expense 0 1,266 0 2,531
Amortization of deferred financing costs 0 192 0 385
Total interest and amortization of deferred financing costs $ 0 $ 1,458 $ 0 $ 2,916
Weighted average interest rate 0.00% 3.50% 0.00% 3.50%
Average borrowings $ 0 $ 150,000 $ 0 $ 150,000
August 2028 Notes | Notes        
Debt Instrument [Line Items]        
Interest expense 0 1,393 0 2,785
Amortization of deferred financing costs 0 126 0 252
Total interest and amortization of deferred financing costs $ 0 $ 1,519 $ 0 $ 3,037
Weighted average interest rate 0.00% 7.75% 0.00% 7.75%
Average borrowings $ 0 $ 71,875 $ 0 $ 71,875
2029 Convertible Notes | Convertible Debt        
Debt Instrument [Line Items]        
Interest expense 2,947 2,947 5,894 5,894
Amortization of deferred financing costs 370 370 740 740
Total interest and amortization of deferred financing costs $ 3,317 $ 3,317 $ 6,634 $ 6,634
Weighted average interest rate 5.13% 5.13% 5.13% 5.13%
Average borrowings $ 230,000 $ 230,000 $ 230,000 $ 230,000
September 2030 Notes | Notes        
Debt Instrument [Line Items]        
Interest expense 5,206 694 10,412 694
Amortization of deferred financing costs 337 42 675 42
Total interest and amortization of deferred financing costs $ 5,543 $ 736 $ 11,087 $ 736
Weighted average interest rate 5.95% 5.95% 5.95% 5.95%
Average borrowings $ 350,000 $ 350,000 $ 350,000 $ 350,000
September 2031 Notes | Notes        
Debt Instrument [Line Items]        
Interest expense 934 0 934 0
Amortization of deferred financing costs 72 0 72 0
Total interest and amortization of deferred financing costs $ 1,006 $ 0 $ 1,006 $ 0
Weighted average interest rate 6.14% 0.00% 6.11% 0.00%
Average borrowings $ 60,870 $ 0 $ 30,601 $ 0