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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Tax Characterizations of Dividends Paid (Details) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Income Tax Characterization [Line Items] |  |  |
Income tax characterization of dividends paid (as a percent) | 100.00% | 100.00% | 100.00%
Ordinary income |  |  |
Income Tax Characterization [Line Items] |  |  |
Income tax characterization of dividends paid (as a percent) | 0.00% | 89.30% | 29.70%
Return of capital |  |  |
Income Tax Characterization [Line Items] |  |  |
Income tax characterization of dividends paid (as a percent) | 13.40% | 0.00% | 35.20%
Capital gains |  |  |
Income Tax Characterization [Line Items] |  |  |
Income tax characterization of dividends paid (as a percent) | 86.60% | 10.70% | 35.10%

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