Quarterly report pursuant to Section 13 or 15(d)

DISTRIBUTIONS TO COMMON STOCKHOLDERS - Narrative (Details)

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DISTRIBUTIONS TO COMMON STOCKHOLDERS - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2022
Sep. 30, 2022
 [1]
Jun. 30, 2022
 [1]
Dec. 31, 2021
Sep. 30, 2021
 [1]
Jun. 30, 2021
 [1]
Dec. 31, 2022
Dec. 31, 2021
Mar. 31, 2022
Equity [Abstract]                  
Investment company, cash distributions paid to common stockholders from ordinary income 61.20%     71.30%     61.20% 71.30%  
Investment company, cash distributions paid to common stockholders from capital gains 38.80%     28.70%     38.80% 28.70%  
Cash distributions to common stockholders             $ 30,900 $ 27,400  
Distributions to common stockholders from ordinary income $ 7,360 [1] $ 4,678 $ 3,188 $ 7,456 [1] $ 5,490 $ 6,593     $ 13,900
Distributions to common stockholders from net realized gains 4,652 [1] $ 2,797 $ 8,268 3,002 [1] $ 2,482 $ 2,372     $ 15,700
Investment company, net adjustments for tax difference to capital distribution $ 300     $ 100     $ 1,600 $ 2,800  
Investment company, deemed distribution approach, notice period                 60 days
[1] Refer to Note 9 — Distributions to Common Stockholders in the accompanying Notes to Consolidated Financial Statements for additional information.