FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Mar. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash, cash equivalents, restricted cash	$ 117,867	$ 116,723	$ 145,013	$ 112,729
Cash and cash equivalents	117,405	116,262	144,000
Restricted cash and equivalents			500
Non-current restricted cash			$ 500
Level 2 | 2028 Notes | Convertible debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	$ 147,400	$ 161,700