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CONVERTIBLE SENIOR NOTES AND TERM LOAN - Schedule of Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Debt Instrument [Line Items]
Contractual interest expense	$ 4,480	$ 7,249	$ 9,038	$ 16,143
Amortization of debt discount and issuance costs	362	656	698	1,718
Total debt interest expense	4,842	7,905	9,736	17,861
2024 Term Loan | Loans payable
Debt Instrument [Line Items]
Contractual interest expense	2,461	2,619	5,000	2,619
Amortization of debt discount and issuance costs	84	104	171	104
Total debt interest expense	2,545	2,723	5,171	2,723
2022 Term Loan | Loans payable
Debt Instrument [Line Items]
Contractual interest expense		2,611		9,466
Amortization of debt discount and issuance costs		286		1,110
Total debt interest expense		2,897		10,576
2028 Notes | Convertible debt
Debt Instrument [Line Items]
Contractual interest expense	2,019	2,019	4,038	4,058
Amortization of debt discount and issuance costs	278	266	527	504
Total debt interest expense	$ 2,297	$ 2,285	$ 4,565	$ 4,562

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