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Borrowings - General, Narrative (Details) - USD ($)
Sep. 30, 2022
Jun. 09, 2018
Jun. 08, 2018
Nov. 05, 2014
Debt Disclosure [Abstract]        
Minimum asset coverage ratio   150.00% 200.00%  
Borrowings allowable per dollar of equity   $ 2    
Asset coverage ratio 179.30%     150.00%
Debt to equity ratio, maximum       1.65
Maximum secured debt ratio       0.70