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COMMITMENTS AND CONTINGENCIES - Unfunded Debt Commitments (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Mar. 31, 2023
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Gain Contingencies [Line Items] |  |
Total Unfunded Debt Commitments | $ 130,862 | $ 124,637
2024 |  |
Gain Contingencies [Line Items] |  |
Total Unfunded Debt Commitments | 11,566 | 31,625
2025 |  |
Gain Contingencies [Line Items] |  |
Total Unfunded Debt Commitments | 15,911 | 10,637
2026 |  |
Gain Contingencies [Line Items] |  |
Total Unfunded Debt Commitments | 10,021 | 6,712
2027 |  |
Gain Contingencies [Line Items] |  |
Total Unfunded Debt Commitments | 35,880 | 38,062
2028 |  |
Gain Contingencies [Line Items] |  |
Total Unfunded Debt Commitments | 39,149 | 35,318
2029 |  |
Gain Contingencies [Line Items] |  |
Total Unfunded Debt Commitments | $ 18,335 | $ 2,283

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