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INCOME TAXES - Schedule of Income Tax Rate Reconciliation Amount (Details)

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INCOME TAXES - Schedule of Income Tax Rate Reconciliation Amount (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Income Tax Disclosure [Abstract]              
Federal statutory rate (as a percent)         21.00%    
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount         $ (8,507) $ (3,450) $ 8,341
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount         1,102 1,945 195
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount         768 1,498 1,941
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount         264 586 1,761
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount         (860) (124) (133)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount         6,313 2,890 (7,396)
Effective Income Tax Rate Reconciliation, Uncertain Tax Positions, Amount         (8,010) (3,791) (6,349)
Income Tax Reconciliation, Credit Monetization         0 0 (2,100)
Effective Income Tax Rate Reconciliation, Expiration Of Attributes, Amount         10,901 5,733 18,345
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount         (1,169) (1,582) (2,094)
Effective Income Tax Rate Reconciliation, Derivative Instrument Adjustments         (1,093) (2,152) (12,606)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount         1,002 387 1,436
Income Tax Expense (Benefit), Total $ 370 $ 533 $ 605 $ 1,063 $ 711 $ 1,940 $ 1,341