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COMMITMENTS AND CONTINGENCIES - Narrative (Details) | 12 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2025 USD ($) | Mar. 31, 2024 USD ($) | Mar. 31, 2023 USD ($) | Dec. 31, 2023 ft² | Mar. 31, 2021
Gain Contingencies [Line Items] |  |  |  |  |
Lease extension |  |  |  |  | 3 years
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Other assets | Other assets |  |  |
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] | Other liabilities | Other liabilities |  |  |
Lease expense | $ 500,000 | $ 300,000 | $ 300,000 |  |
Operating lease asset | 3,900,000 | 2,400,000 |  |  |
Operating lease liability | $ 5,400,000 | $ 3,200,000 |  |  |
Remaining lease term | 10 years 6 months |  |  |  |
Discount rate | 6.59% |  |  |  |
Undiscounted excess amount not disclosed | $ 0 |  |  |  |
Office Space |  |  |  |  |
Gain Contingencies [Line Items] |  |  |  |  |
Area of additional office space | ft² |  |  |  | 7,100 |
Letters of Credit Issued and Outstanding |  |  |  |  |
Gain Contingencies [Line Items] |  |  |  |  |
Expiring letters of credit | 900,000 |  |  |  |
Letters of Credit Issued and Outstanding | February 2026 |  |  |  |  |
Gain Contingencies [Line Items] |  |  |  |  |
Expiring letters of credit | 400,000 |  |  |  |
Letters of Credit Issued and Outstanding | March 2026 |  |  |  |  |
Gain Contingencies [Line Items] |  |  |  |  |
Expiring letters of credit | 300,000 |  |  |  |
Letters of Credit Issued and Outstanding | April 2026 |  |  |  |  |
Gain Contingencies [Line Items] |  |  |  |  |
Expiring letters of credit | $ 200,000 |  |  |  |

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