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INCOME TAXES - RIC Accumulated Earnings (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2023
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Income Tax Disclosure [Abstract] |  |  |
Undistributed ordinary income - tax basis | $ 41,594 | $ 28,845 | $ 16,070
Undistributed net realized (loss) gain | (130,951) | (60,056) | (30,201)
Unrealized (depreciation) appreciation on investments | (80,308) | (68,529) | (61,710)
Other temporary differences | (4,201) | (9,584) | (13,639)
Components of distributable earnings at year-end | $ (173,866) | $ (109,324) | $ (89,480)

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- Definition Amount of accumulated undistributed earnings (deficit) from unrealized appreciation (depreciation) of investment company. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480990/946-20-50-12 + Details
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- Definition Amount of accumulated undistributed earnings (deficit) from long-term capital gain (loss) of investment company. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480990/946-20-50-12 + Details
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