v3.25.4
SUMMARY OF PER SHARE INFORMATION (Details) - $ / shares
 3 Months Ended 9 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2025
Dec. 31, 2024
Mar. 31, 2025
Per Share Data:          
Investment income (in usd per share)     $ 3.11 $ 3.23  
Operating expenses (in usd per share)     (1.30) (1.27)  
Income taxes (in usd per share)     (0.01) (0.04)  
Net investment income (in usd per share) $ 0.64 $ 0.63 1.80 1.92  
Net realized gain (loss), net of tax (in usd per share)     0.20 (0.47)  
Net unrealized (depreciation) appreciation on investments, net of tax (in usd per share)     (0.43) (0.31)  
Realized loss on extinguishment of debt (in usd per share)     (0.04) (0.01)  
Total increase from investment operations (in usd per share)     1.52 1.13  
Accretive effect of share issuances and repurchases (in usd per share)     0.47 0.64  
Dividends to shareholders (in usd per share)     (1.92) (1.90)  
Issuance of restricted stock (in usd per share)     (0.10) (0.14)  
Common stock withheld for payroll taxes upon vesting of restricted stock (in usd per share)     (0.04) (0.07)  
Share based compensation expense (in usd per share)     0.06 0.09  
Other (in usd per share)     0.06 0.07  
Increase (decrease) in net asset value (in usd per share)     0.05 (0.18)  
Net asset value          
Beginning of period (in usd per share)     16.70 16.77  
End of period (in usd per share) 16.75 16.59 $ 16.75 $ 16.59  
Ratios and Supplemental Data          
Ratio of operating expenses to average net assets     10.30% 10.09%  
Ratio of operating expenses (excluding interest expense) to average net assets     3.34% 3.41%  
Ratio of net investment income to average net assets     14.24% 15.17%  
Portfolio turnover     16.41% 14.97%  
Total investment return     7.92% (5.73%)  
Total return based on change in NAV     11.80% 10.26%  
Per share market value at the end of the period (in usd per share) $ 22.15 $ 21.82 $ 22.15 $ 21.82  
Weighted average common shares outstanding – basic (in shares) 57,530,942 48,315,228 55,538,000 47,079,617  
Weighted average common shares outstanding – diluted (in shares) 66,842,796 54,121,844 64,824,145 49,022,194  
Common shares outstanding at end of period (in shares) 59,456,961 50,051,000 59,456,961 50,051,000 52,912,796