XML 41 R34.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Investments - Schedule of Investments and Cash and Cash Equivalents (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Sep. 30, 2023
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Cash and cash equivalents $ 125,252 $ 100,555
Cost    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Total investments 1,489,679 1,092,878
Cash and cash equivalents 125,246 100,555
Total investments and cash and cash equivalents 1,614,925 1,193,433
Cost | First lien    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Total investments 1,080,800 708,452
Cost | First lien in PSSL    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Total investments 210,088 210,088
Cost | Second lien    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Total investments 148 1,113
Cost | Subordinate debt    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Total investments 18 0
Cost | Equity    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Total investments 108,587 83,188
Cost | Equity interests in PSSL    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Total investments 90,038 90,038
Fair Value    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Total investments 1,477,883 1,067,174
Cash and cash equivalents 125,252 100,555
Total investments and cash and cash equivalents 1,603,135 1,167,729
Fair Value | First lien    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Total investments 1,074,820 696,078
Fair Value | First lien in PSSL    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Total investments 210,088 210,088
Fair Value | Second lien    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Total investments 150 149
Fair Value | Subordinate debt    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Total investments 18 0
Fair Value | Equity    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Total investments 139,695 109,978
Fair Value | Equity interests in PSSL    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Total investments $ 53,112 $ 50,881