CONVERTIBLE SENIOR NOTES AND TERM LOAN - Schedule of Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Contractual interest expense	$ 5,415	$ 8,878	$ 21,558	$ 26,556
Amortization of debt discount and issuance costs	427	1,158	2,145	3,398
Total interest expense	5,842	10,036	23,703	29,954
2024 Term Loan | Loans payable
Debt Instrument [Line Items]
Contractual interest expense	3,396		6,015
Amortization of debt discount and issuance costs	158		262
Total interest expense	3,554		6,277
2022 Term Loan | Loans payable
Debt Instrument [Line Items]
Contractual interest expense	0	6,762	9,466	20,233
Amortization of debt discount and issuance costs	0	790	1,110	2,333
Total interest expense	0	7,552	10,576	22,566
2028 Notes | Convertible debt
Debt Instrument [Line Items]
Contractual interest expense	2,019	2,036	6,077	6,085
Amortization of debt discount and issuance costs	269	258	773	739
Total interest expense	2,288	2,294	6,850	6,824
2024 Notes | Convertible debt
Debt Instrument [Line Items]
Contractual interest expense	0	80	0	238
Amortization of debt discount and issuance costs	0	110	0	326
Total interest expense	$ 0	$ 190	$ 0	$ 564