BORROWINGS - Notes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
January 2026 Notes | Notes
Debt Instrument [Line Items]
Interest expense	$ 1,208	$ 1,575	$ 4,358	$ 4,725
Amortization of deferred financing costs	56	84	224	253
Total interest and amortization of deferred financing costs	$ 1,264	$ 1,659	$ 4,582	$ 4,978
Weighted average effective interest rate	4.46%	4.46%	4.46%	4.46%
Average borrowings	$ 140,000	$ 140,000	$ 140,000	$ 140,000
October 2026 Notes | Notes
Debt Instrument [Line Items]
Interest expense	1,266	1,266	3,797	3,797
Amortization of deferred financing costs	192	251	577	621
Total interest and amortization of deferred financing costs	$ 1,458	$ 1,517	$ 4,374	$ 4,418
Weighted average effective interest rate	3.50%	3.50%	3.50%	3.50%
Average borrowings	$ 150,000	$ 150,000	$ 150,000	$ 150,000
August 2028 Notes | Notes
Debt Instrument [Line Items]
Interest expense	1,393	1,393	4,178	3,033
Amortization of deferred financing costs	127	127	382	296
Total interest and amortization of deferred financing costs	$ 1,520	$ 1,520	$ 4,560	$ 3,329
Weighted average effective interest rate	7.75%	7.75%	7.75%	7.75%
Average borrowings	$ 71,875	$ 71,875	$ 71,875	$ 71,875
2029 Convertible Notes | Convertible Debt
Debt Instrument [Line Items]
Interest expense	1,703	0	1,703	0
Amortization of deferred financing costs	243	0	243	0
Total interest and amortization of deferred financing costs	$ 1,946	$ 0	$ 1,946	$ 0
Weighted average effective interest rate	5.13%	0.00%	5.13%	0.00%
Average borrowings	$ 230,000	$ 0	$ 230,000	$ 0