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SALE OF MIDDLE MARKET LENDING PORTFOLIO (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Jun. 30, 2022 | Sep. 30, 2022 | Sep. 30, 2021 | Apr. 22, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Business divestiture-related gains (losses) | $ (2,936) | $ (14,009) |  | $ (27,245) | $ (262,045) |
Discontinued Operations, Disposed of by Sale | Middle Market Lending Portfolio |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Sale of business |  |  |  |  |  | $ 2,400,000
Loans sold | 1,900,000 |  |  | 1,900,000 |  |
Cash proceeds |  |  | $ 1,900,000 |  |  |
Business divestiture-related gains (losses) |  |  | $ 20,400 |  |  |
Discontinued Operations, Held-for-sale | Middle Market Lending Portfolio |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Loans sold | $ 14,200 |  |  | $ 14,200 |  |

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