Quarterly report [Sections 13 or 15(d)]

DISTRIBUTIONS TO COMMON STOCKHOLDERS - Narrative (Details)

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DISTRIBUTIONS TO COMMON STOCKHOLDERS - Narrative (Details)
$ in Millions
6 Months Ended 12 Months Ended
Mar. 31, 2025
USD ($)
distribution
Mar. 31, 2024
USD ($)
Sep. 30, 2024
USD ($)
Dec. 31, 2024
Dec. 31, 2023
Equity [Abstract]          
Investment company, number of monthly distributions | distribution 3        
Investment company, cash distributions paid to common stockholders from ordinary income       83.10% 100.00%
Investment company, cash distributions paid to common stockholders from capital gains       16.90%  
Cash distributions to common stockholders $ 31.0 $ 21.5      
Tax return of capital distribution     $ 6.6