Quarterly report [Sections 13 or 15(d)]

RELATED PARTY TRANSACTIONS - Schedule of Sale of Common Stock to Main Street (Details)

v3.26.3
RELATED PARTY TRANSACTIONS - Schedule of Sale of Common Stock to Main Street (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended
Sep. 30, 2026
Sep. 30, 2026
Mar. 31, 2026
Sep. 30, 2025
Jun. 30, 2025
Related Party Transaction [Line Items]          
Total number of shares purchased (in shares) 53,778        
Average price paid per share (in dollars per share) $ 12.47 $ 12.47      
Total cost $ 670 $ 671 $ 16,030 $ 2,539 $ 146
Total number of shares purchased as part of publicly announced plans or programs (in shares) 53,778        
Approximate dollar value of shares that may yet be repurchased under the plans or programs $ 17,345 $ 17,345      
MSC Income | Related Party          
Related Party Transaction [Line Items]          
Total number of shares purchased (in shares) 53,777        
Average price paid per share (in dollars per share) $ 12.47 $ 12.47      
Total cost $ 670        
Total number of shares purchased as part of publicly announced plans or programs (in shares) 53,777        
Approximate dollar value of shares that may yet be repurchased under the plans or programs $ 17,345 $ 17,345