Quarterly report [Sections 13 or 15(d)]

NET INCREASE (DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS PER WEIGHTED-AVERAGE COMMON SHARE (Details)

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NET INCREASE (DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS PER WEIGHTED-AVERAGE COMMON SHARE (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2025
Dec. 31, 2024
Earnings Per Share [Abstract]        
Numerator: net increase in net assets resulting from operations $ 65,898 $ 38,490 $ 102,379 $ 47,446
Basic weighted-average common shares (in shares) 39,678,402 36,727,873 38,349,549 36,701,783
Diluted weighted-average common shares (in shares) 39,678,402 36,727,873 38,349,549 36,701,783
Basic net increase in net assets resulting from operations per weighted-average common share (in USD per share) $ 1.66 $ 1.05 $ 2.67 $ 1.29
Diluted net increase in net assets resulting from operations per weighted-average common share (in USD per share) $ 1.66 $ 1.05 $ 2.67 $ 1.29