v3.26.1
Investments - Schedule of Portfolio Composition by Industry at Amortized Cost and Fair Value (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Mar. 31, 2026
Sep. 30, 2025
Schedule of Investments [Line Items]    
Amortized Cost $ 397,986 $ 385,232
Fair Value $ 397,083 [1] $ 390,128 [2]
Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 100.00% 100.00%
Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 100.00% 100.00%
Aerospace & Defense    
Schedule of Investments [Line Items]    
Amortized Cost $ 8,431 $ 6,278
Fair Value $ 8,464 $ 6,302
Aerospace & Defense | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 2.10% 1.60%
Aerospace & Defense | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 2.10% 1.60%
Air Freight & Logistics    
Schedule of Investments [Line Items]    
Amortized Cost $ 3,952 $ 3,948
Fair Value $ 4,039 $ 4,022
Air Freight & Logistics | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.00% 1.00%
Air Freight & Logistics | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.00% 1.00%
Auto Components    
Schedule of Investments [Line Items]    
Amortized Cost $ 8,316 $ 8,146
Fair Value $ 8,395 $ 8,245
Auto Components | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 2.10% 2.10%
Auto Components | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 2.10% 2.10%
Automobiles    
Schedule of Investments [Line Items]    
Amortized Cost $ 20,518 $ 19,664
Fair Value $ 21,112 $ 20,191
Automobiles | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 5.20% 5.10%
Automobiles | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 5.30% 5.20%
Banks    
Schedule of Investments [Line Items]    
Amortized Cost $ 2,049 $ 1,692
Fair Value $ 2,001 $ 1,709
Banks | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.50% 0.40%
Banks | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.50% 0.40%
Beverages    
Schedule of Investments [Line Items]    
Amortized Cost $ 4,830 $ 4,804
Fair Value $ 4,924 $ 4,960
Beverages | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.20% 1.20%
Beverages | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.20% 1.30%
Building Products    
Schedule of Investments [Line Items]    
Amortized Cost $ 123 $ 83
Fair Value $ 123 $ 84
Building Products | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.00% 0.00%
Building Products | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.00% 0.00%
Capital Markets    
Schedule of Investments [Line Items]    
Amortized Cost $ 5,048 $ 4,865
Fair Value $ 4,931 $ 4,911
Capital Markets | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.30% 1.30%
Capital Markets | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.30% 1.30%
Chemicals    
Schedule of Investments [Line Items]    
Amortized Cost $ 919 $ 919
Fair Value $ 914 $ 922
Chemicals | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.20% 0.30%
Chemicals | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.20% 0.30%
Commercial Services & Supplies    
Schedule of Investments [Line Items]    
Amortized Cost $ 12,021 $ 15,946
Fair Value $ 12,062 $ 16,097
Commercial Services & Supplies | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 3.00% 4.20%
Commercial Services & Supplies | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 3.00% 4.10%
Construction & Engineering    
Schedule of Investments [Line Items]    
Amortized Cost $ 4,035 $ 3,873
Fair Value $ 4,012 $ 3,899
Construction & Engineering | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.00% 1.00%
Construction & Engineering | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.00% 1.00%
Diversified Consumer Services    
Schedule of Investments [Line Items]    
Amortized Cost $ 35,232 $ 32,658
Fair Value $ 35,185 $ 33,114
Diversified Consumer Services | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 8.90% 8.50%
Diversified Consumer Services | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 8.90% 8.50%
Diversified Financial Services    
Schedule of Investments [Line Items]    
Amortized Cost $ 6,520 $ 5,818
Fair Value $ 6,522 $ 5,854
Diversified Financial Services | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.60% 1.50%
Diversified Financial Services | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.60% 1.50%
Electric Utilities    
Schedule of Investments [Line Items]    
Amortized Cost $ 456 $ 446
Fair Value $ 481 $ 469
Electric Utilities | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.10% 0.10%
Electric Utilities | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.10% 0.10%
Electrical Equipment    
Schedule of Investments [Line Items]    
Amortized Cost $ 1,247 $ 1,609
Fair Value $ 1,252 $ 1,638
Electrical Equipment | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.30% 0.40%
Electrical Equipment | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.30% 0.40%
Electronic Equipment, Instruments & Components    
Schedule of Investments [Line Items]    
Amortized Cost $ 1,517 $ 1,503
Fair Value $ 1,534 $ 1,550
Electronic Equipment, Instruments & Components | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.40% 0.40%
Electronic Equipment, Instruments & Components | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.40% 0.40%
Food & Staples Retailing    
Schedule of Investments [Line Items]    
Amortized Cost $ 275 $ 0
Fair Value $ 277 $ 0
Food & Staples Retailing | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.10% 0.00%
Food & Staples Retailing | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.10% 0.00%
Food Products    
Schedule of Investments [Line Items]    
Amortized Cost $ 4,798 $ 4,851
Fair Value $ 4,851 $ 4,908
Food Products | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.20% 1.30%
Food Products | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.20% 1.30%
Healthcare Equipment & Supplies    
Schedule of Investments [Line Items]    
Amortized Cost $ 11,547 $ 9,129
Fair Value $ 11,563 $ 9,185
Healthcare Equipment & Supplies | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 2.90% 2.40%
Healthcare Equipment & Supplies | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 2.90% 2.40%
Healthcare Providers & Services    
Schedule of Investments [Line Items]    
Amortized Cost $ 19,923 $ 19,824
Fair Value $ 19,924 $ 20,087
Healthcare Providers & Services | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 5.00% 5.20%
Healthcare Providers & Services | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 5.00% 5.20%
Healthcare Technology    
Schedule of Investments [Line Items]    
Amortized Cost $ 18,001 $ 15,777
Fair Value $ 17,797 $ 15,906
Healthcare Technology | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 4.50% 4.10%
Healthcare Technology | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 4.50% 4.10%
Hotels, Restaurants & Leisure    
Schedule of Investments [Line Items]    
Amortized Cost $ 22,135 $ 19,610
Fair Value $ 22,011 $ 19,728
Hotels, Restaurants & Leisure | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 5.60% 5.10%
Hotels, Restaurants & Leisure | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 5.60% 5.10%
Household Durables    
Schedule of Investments [Line Items]    
Amortized Cost $ 249 $ 0
Fair Value $ 250 $ 0
Household Durables | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.10% 0.00%
Household Durables | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.10% 0.00%
Household Products    
Schedule of Investments [Line Items]    
Amortized Cost $ 426 $ 421
Fair Value $ 426 $ 423
Household Products | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.10% 0.10%
Household Products | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.10% 0.10%
Industrial Conglomerates    
Schedule of Investments [Line Items]    
Amortized Cost $ 3,968 $ 3,622
Fair Value $ 3,943 $ 3,665
Industrial Conglomerates | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.00% 0.90%
Industrial Conglomerates | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.00% 0.90%
Insurance    
Schedule of Investments [Line Items]    
Amortized Cost $ 23,195 $ 21,268
Fair Value $ 23,220 $ 21,446
Insurance | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 5.80% 5.50%
Insurance | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 5.80% 5.50%
IT Services    
Schedule of Investments [Line Items]    
Amortized Cost $ 13,142 $ 12,891
Fair Value $ 13,021 $ 13,042
IT Services | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 3.30% 3.40%
IT Services | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 3.30% 3.40%
Leisure Products    
Schedule of Investments [Line Items]    
Amortized Cost $ 5,372 $ 5,388
Fair Value $ 5,338 $ 5,376
Leisure Products | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.30% 1.40%
Leisure Products | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.30% 1.40%
Life Sciences Tools & Services    
Schedule of Investments [Line Items]    
Amortized Cost $ 5,738 $ 5,845
Fair Value $ 6,204 $ 6,425
Life Sciences Tools & Services | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.40% 1.50%
Life Sciences Tools & Services | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.60% 1.60%
Machinery    
Schedule of Investments [Line Items]    
Amortized Cost $ 5,805 $ 5,850
Fair Value $ 5,765 $ 5,901
Machinery | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.50% 1.50%
Machinery | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.50% 1.50%
Media    
Schedule of Investments [Line Items]    
Amortized Cost $ 3,225 $ 2,786
Fair Value $ 3,238 $ 2,786
Media | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.80% 0.70%
Media | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.80% 0.70%
Oil, Gas & Consumable Fuels    
Schedule of Investments [Line Items]    
Amortized Cost $ 291 $ 4,633
Fair Value $ 287 $ 4,666
Oil, Gas & Consumable Fuels | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.10% 1.20%
Oil, Gas & Consumable Fuels | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.10% 1.20%
Pharmaceuticals    
Schedule of Investments [Line Items]    
Amortized Cost $ 4,455 $ 4,336
Fair Value $ 4,511 $ 4,419
Pharmaceuticals | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.10% 1.10%
Pharmaceuticals | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 1.10% 1.10%
Professional Services    
Schedule of Investments [Line Items]    
Amortized Cost $ 12,695 $ 12,134
Fair Value $ 12,479 $ 12,211
Professional Services | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 3.20% 3.10%
Professional Services | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 3.10% 3.10%
Road & Rail    
Schedule of Investments [Line Items]    
Amortized Cost $ 0 $ 1,663
Fair Value $ 0 $ 1,674
Road & Rail | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.00% 0.40%
Road & Rail | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.00% 0.40%
Software    
Schedule of Investments [Line Items]    
Amortized Cost $ 99,738 $ 95,852
Fair Value $ 98,402 $ 97,231
Software | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 25.10% 24.90%
Software | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 24.90% 24.90%
Specialty Retail    
Schedule of Investments [Line Items]    
Amortized Cost $ 23,704 $ 23,446
Fair Value $ 23,551 $ 23,445
Specialty Retail | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 6.00% 6.10%
Specialty Retail | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 6.00% 6.00%
Transportation Infrastructure    
Schedule of Investments [Line Items]    
Amortized Cost $ 3,342 $ 3,329
Fair Value $ 3,326 $ 3,310
Transportation Infrastructure | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.80% 0.90%
Transportation Infrastructure | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.80% 0.80%
Water Utilities    
Schedule of Investments [Line Items]    
Amortized Cost $ 748 $ 325
Fair Value $ 748 $ 327
Water Utilities | Investments, at Amortized Cost | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.20% 0.10%
Water Utilities | Investments, at Fair Value | Industry Concentration Risk    
Schedule of Investments [Line Items]    
Concentration risk, percentage (as a percent) 0.20% 0.10%
[1] The fair values of investments were valued using significant unobservable inputs, unless otherwise noted. See Note 7. The fair value of loan investments may include the impact of the unfunded commitment being valued below par.
[2] The fair values of investments were valued using significant unobservable inputs, unless otherwise noted. See Note 7. The fair value of loan investments may include the impact of the unfunded commitment being valued below par.