v3.26.1
BORROWINGS - Notes (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
January 2026 Notes | Notes      
Debt Instrument [Line Items]      
Interest expense $ 0 $ 4,358 $ 6,300
Amortization of deferred financing costs 0 224 337
Total interest and amortization of deferred financing costs $ 0 $ 4,582 $ 6,637
Weighted average interest rate 0.00% 4.46% 4.46%
Average borrowings $ 0 $ 140,000 $ 140,000
October 2026 Notes | Notes      
Debt Instrument [Line Items]      
Interest expense 2,714 5,062 5,062
Amortization of deferred financing costs 412 770 814
Total interest and amortization of deferred financing costs $ 3,126 $ 5,832 $ 5,876
Weighted average interest rate 3.50% 3.50% 3.50%
Average borrowings $ 77,545 $ 150,000 $ 150,000
August 2028 Notes | Notes      
Debt Instrument [Line Items]      
Interest expense 2,986 5,570 4,425
Amortization of deferred financing costs 270 501 423
Total interest and amortization of deferred financing costs $ 3,256 $ 6,071 $ 4,848
Weighted average interest rate 7.75% 7.75% 7.75%
Average borrowings $ 38,533 $ 71,875 $ 71,875
2029 Convertible Notes | Convertible Debt      
Debt Instrument [Line Items]      
Interest expense 11,788 4,650 0
Amortization of deferred financing costs 1,479 613 0
Total interest and amortization of deferred financing costs $ 13,267 $ 5,263 $ 0
Weighted average interest rate 5.13% 5.13% 0.00%
Average borrowings $ 230,000 $ 230,000 $ 0
September 2030 Notes | Notes      
Debt Instrument [Line Items]      
Interest expense 11,107 0 0
Amortization of deferred financing costs 715 0 0
Total interest and amortization of deferred financing costs $ 11,822 $ 0 $ 0
Weighted average interest rate 5.95% 0.00% 0.00%
Average borrowings $ 186,667 $ 0 $ 0