Quarterly report pursuant to Section 13 or 15(d)

Agreements and Related Party Transactions (Details)

v3.22.2.2
Agreements and Related Party Transactions (Details) - Affiliated entity
3 Months Ended 9 Months Ended
Jul. 18, 2022
USD ($)
Jul. 01, 2022
USD ($)
May 21, 2022
USD ($)
May 03, 2022
Feb. 28, 2022
USD ($)
Aug. 19, 2021
USD ($)
May 18, 2021
component
Mar. 08, 2021
USD ($)
Jul. 31, 2020
USD ($)
Mar. 25, 2020
USD ($)
Sep. 24, 2019
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Sep. 30, 2022
USD ($)
Sep. 30, 2021
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Sep. 30, 2022
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Sep. 30, 2021
USD ($)
Administration Agreement                              
Related Party Transaction [Line Items]                              
Contract term             2 years                
Management fee                       $ 1,500,000 $ 1,600,000 $ 4,500,000 $ 4,500,000
Written notice for contract termination, term       60 days                      
Management Fee                              
Related Party Transaction [Line Items]                              
Management fee                       46,900,000 45,600,000 141,200,000 131,700,000
Management fee, average gross assets             1.00%                
Management fee, asset coverage ratio maximum             200.00%                
Investment Advisory Agreement                              
Related Party Transaction [Line Items]                              
Contract term             2 years                
Written notice for contract termination, term       60 days                      
Required term of written notice for contract termination for certain circumstances       120 days                      
Incentive fee components | component             2                
Pre-incentive fee net investment income (as percent)             100.00%                
Incentive fee             1.50%                
Remaining of pre-incentive fee net investment income             17.50%                
Pre-incentive fee net investment income             1.82%                
Capital gains incentive fee             17.50%                
Performance Based Incentive Fee                              
Related Party Transaction [Line Items]                              
Management fee                       $ 31,100,000 $ 27,700,000 $ 83,600,000 $ 74,700,000
Commitment To Indirectly Owned Subsidiary                              
Related Party Transaction [Line Items]                              
Amount of transaction     $ 400,000,000   $ 350,000,000 $ 250,000,000   $ 200,000,000 $ 150,000,000 $ 100,000,000 $ 50,000,000        
Equity Commitment To Indirectly Owned Subsidiary                              
Related Party Transaction [Line Items]                              
Amount of transaction $ 15,900,000                            
Equity Commitment To Amergin AssetCo                              
Related Party Transaction [Line Items]                              
Amount of transaction   $ 90,000,000