v3.26.1
Agreements and Related Party Transactions - Additional Information (Details) - USD ($)
 1 Months Ended 3 Months Ended
Mar. 31, 2020
Apr. 15, 2011
Nov. 30, 2025
Mar. 31, 2026
Mar. 31, 2025
Related Party Transaction [Line Items]          
Management fees       $ 12,593,000 $ 13,083,000
Administration Agreement          
Related Party Transaction [Line Items]          
Agreement termination period     60 days    
Administration Agreement | Adviser | Other General and Administrative Expenses          
Related Party Transaction [Line Items]          
Expenses incurred       900,000 1,000,000
Investment Advisory Agreement          
Related Party Transaction [Line Items]          
Agreement termination period     60 days    
Percentage of management fee on gross assets   1.50%      
Management fees       12,600,000 13,100,000
Percentage of excess pre-incentive fee net investment income for immediate preceding calendar quarter   100.00%      
Percentage of hurdle rate   1.50%      
Percentage of total pre-Incentive fee net investment income payable quarterly   17.50%      
Percentage of excess pre-Incentive Fee net investment income quarterly   1.82%      
Percentage of all remaining pre-Incentive Fee net investment income quarterly   17.50%      
Percentage of excess catch-up provision for pre-Incentive Fee net investment income   100.00%      
Percentage of all pre-Incentive Fee net investment income   17.50%      
Percentage of pre-Incentive Fee net investment income annualized   7.28%      
Percentage of excess pre-Incentive Fee net investment income   17.50%      
Percentage of pre-Incentive Fee net investment income payable in any quarter   1.82%      
Percentage of weighted cumulative realized capital gains less cumulative realized capital losses and unrealized capital losses   15.00%      
Incentive fees       8,500,000 7,800,000
Incentive fees realized and payable to advisor       8,500,000 11,500,000
Incentive fees accrued related to expense (reversal) of capital gains fees       0 (3,700,000)
Investment Advisory Agreement | Capital Gains Accrue Following March 31, 2014          
Related Party Transaction [Line Items]          
Percentage of incentive fee rate   17.50%      
Investment Advisory Agreement | Realized Capital Gains Accrued Prior to March 31, 2014          
Related Party Transaction [Line Items]          
Percentage of incentive fee rate   15.00%      
Investment Advisory Agreement | Realized Capital Gains Accrued Beginning April 1, 2014          
Related Party Transaction [Line Items]          
Percentage of incentive fee rate   17.50%      
Investment Advisory Agreement | Future Realized Capital Gains Prior to April 1, 2014          
Related Party Transaction [Line Items]          
Remaining investments $ 0        
Incentive fee rate 17.50%        
Investment Advisory Agreement | Leverage Waiver          
Related Party Transaction [Line Items]          
Management fees       $ 300,000 $ 400,000
Percentage of asset coverage   200.00%      
Percentage of management fee in excess of annual rate on gross assets   1.00%      
Percentage of management fee in excess of quarter rate on gross assets   0.25%