v3.26.1
Investments - Schedule of Investments and Cash and Cash Equivalents (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Sep. 30, 2025
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Cost $ 2,627,447 [1],[2] $ 2,819,393 [3],[4],[5],[6]
Fair Value 2,504,658 [1],[2] 2,773,328 [3],[4],[5],[6],[7]
Cash and cash equivalents 100,800  
Cash and cash equivalents at fair value 50,725 40,729
Investment Owned at Cost and Cash and Cash Equivalents at Carrying Value 2,728,262 2,942,077
Investment Owned At Fair Value And Cash And Cash Equivalents Fair Value 2,605,466 2,896,016
First lien    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Cost 1,968,011 2,289,071
Fair Value 1,927,421 2,275,982
First lien in PSSL    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Cost 237,650 237,650
Fair Value 237,650 237,650
First Lien In PSSL II    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Cost 65,625 0
Fair Value 65,625 0
Second lien    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Cost 0 995
Fair Value 0 995
Subordinate debt    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Cost 19,892 17,387
Fair Value 19,684 17,986
Equity    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Cost 145,044 150,565
Fair Value 173,829 196,397
Equity interests in PSSL    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Cost 163,100 123,725
Fair Value 52,671 44,318
Equity Interests In PSSL II    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Cost 28,125 0
Fair Value 27,778 0
Cash And Cash Equivalent [Member]    
Schedule Of Investment Income Reported Amounts By Category [Line Items]    
Cash and cash equivalents 100,815 122,684
Cash and cash equivalents at fair value $ 100,808 $ 122,688
[1] All of our investments are not registered under the 1933 Act and have restrictions on resale.
(13)
Rate disclosed is the seven day effective yield as of June 30, 2026.
[2] As of June 30, 2026, all investments were in U.S. companies and total cost, fair value, and percentage of Net Assets for the U.S. companies were $2,627.4 million, $2,504.7 million, and 246.1%.
[3] All of our investments are not registered under the 1933 Act and have restrictions on resale.
[4] As of September 30, 2025, all investments were in U.S. companies and total cost, fair value, and percentage of Net Assets for the U.S. companies were $2,819.4 million, $2,773.3 million, and 258.1%
[5] The provisions of the 1940 Act classify investments based on the level of control that we maintain in a particular portfolio company. As defined in the 1940 Act, a company is generally presumed to be “non-controlled” when we own 25% or less of the portfolio company’s voting securities and “controlled” when we own more than 25% of the portfolio company’s voting securities.
[6] The provisions of the 1940 Act classify investments further based on the level of ownership that we maintain in a particular portfolio company. As defined in the 1940 Act, a company is generally deemed as “non-affiliated” when we own less than 5% of a portfolio company’s voting securities and “affiliated” when we own 5% or more of a portfolio company’s voting securities.
[7] Valued based on our accounting policy (See Note 2). The value of all securities was determined using significant unobservable inputs (See Note 5).