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Investments - Summary of Listing of PSSL's Individual Investments (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2022
Sep. 30, 2022
Schedule Of Investments [Line Items]    
Basis Point Spread Above Index [1],[2],[3] 3M L+525  
Cost $ 1,181,025 $ 1,177,357
Fair Value 1,151,137 1,164,254 [4]
Liabilities in Excess of Other Assets-(1,229.0)% (690,542) (685,042) [4]
Cash and Cash Equivalents    
Schedule Of Investments [Line Items]    
Cost 52,944 47,916
Fair Value 52,935 47,880 [4]
Total Investments and Cash Equivalents    
Schedule Of Investments [Line Items]    
Cost 1,233,969 1,225,273
Fair Value 1,204,072 1,212,134 [4]
Holdco Sands Intermediate, LLC | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Basis Point Spread Above Index, Amount [1],[2],[5] 600  
HW Holdco, LLC | Media    
Schedule Of Investments [Line Items]    
Basis Point Spread Above Index, Amount [1],[2],[5] 500  
IDC Infusion Services, Inc. | Healthcare Equipment and Supplies    
Schedule Of Investments [Line Items]    
Basis Point Spread Above Index, Amount [1],[2],[5] 700  
Imagine Acquisitionco, LLC | Software    
Schedule Of Investments [Line Items]    
Basis Point Spread Above Index, Amount [1],[2],[5] 550  
Inception Fertility Ventures, LLC | Healthcare Providers and Services    
Schedule Of Investments [Line Items]    
Basis Point Spread Above Index, Amount [1],[2],[5] 715  
BlackRock Federal FD Institutional 30 | Cash and Cash Equivalents    
Schedule Of Investments [Line Items]    
Cost 44,200 38,209
Fair Value 44,200 38,209 [4]
First Lien Secured Debt - 1,354.1% | LAV Gear Holdings, Inc. | Capital Equipment    
Schedule Of Investments [Line Items]    
Fair Value [6] 10,374  
Second Lien Secured Debt    
Schedule Of Investments [Line Items]    
Cost [7],[8]   1,113
Fair Value [4],[7],[8]   147
PennantPark Senior Secured Loan Fund I LLC    
Schedule Of Investments [Line Items]    
Cost 772,064 770,280
Fair Value 750,692 [6] 754,722 [9]
Liabilities in Excess of Other Assets-(1,229.0)% (737,189) [6] (731,931) [9]
Members' Equity-100.0% 55,195 [6] 56,496 [9]
PennantPark Senior Secured Loan Fund I LLC | Equity Securities    
Schedule Of Investments [Line Items]    
Fair Value 320 [6] 139 [9]
PennantPark Senior Secured Loan Fund I LLC | Cash and Cash Equivalents    
Schedule Of Investments [Line Items]    
Cost 41,692 33,725
Fair Value 41,692 [6] 33,705 [9]
PennantPark Senior Secured Loan Fund I LLC | Total Investments and Cash Equivalents    
Schedule Of Investments [Line Items]    
Cost 813,756 804,005
Fair Value $ 792,384 [6] $ 788,427 [9]
PennantPark Senior Secured Loan Fund I LLC | New MPE Holdings, LLC [Member] | Media: Diversified and Production | Equity Securities    
Schedule Of Investments [Line Items]    
Industry Media: Diversified and Production Media: Diversified and Production
Fair Value $ 320 [6] $ 139 [9]
PennantPark Senior Secured Loan Fund I LLC | BlackRock Federal FD Institutional 30 | Cash and Cash Equivalents    
Schedule Of Investments [Line Items]    
Cost $ 41,692 33,725
Fair Value [9]   33,705
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1%    
Schedule Of Investments [Line Items]    
Cost   767,316
Fair Value [9]   $ 751,627
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | A 1 Garage Merger Sub, L L C | Commercial Services & Supplies    
Schedule Of Investments [Line Items]    
Maturity Dec. 22, 2028  
Industry Commercial Services & Supplies  
Current Coupon 11.12%  
Basis Point Spread Above Index [10] 3M L+650  
Basis Point Spread Above Index, Amount [10] $ 650  
Par / Shares 2,955  
Cost $ 2,896  
Fair Value [6] $ 2,895  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Ad.net Acquisition, LLC | Media    
Schedule Of Investments [Line Items]    
Maturity May 06, 2026  
Industry Media  
Current Coupon 10.84%  
Basis Point Spread Above Index [10] 3M L+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 8,865  
Cost $ 8,772  
Fair Value [6] $ 8,799  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Alpine Acquisition Corp II | Containers and Packaging    
Schedule Of Investments [Line Items]    
Maturity Nov. 30, 2026  
Industry Containers and Packaging  
Current Coupon 9.88%  
Basis Point Spread Above Index [10] SOFR+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 12,950  
Cost $ 12,576  
Fair Value [6] $ 12,432  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Altamira Technologies, LLC | Business Services    
Schedule Of Investments [Line Items]    
Maturity Jul. 24, 2025  
Industry Business Services  
Current Coupon 10.24%  
Basis Point Spread Above Index [10] 3M L+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 5,150  
Cost $ 5,047  
Fair Value [6] $ 5,060  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | American Insulated Glass, LLC | Building Products    
Schedule Of Investments [Line Items]    
Maturity Dec. 21, 2023  
Industry Building Products  
Current Coupon 8.25%  
Basis Point Spread Above Index [10] 3M L+450  
Basis Point Spread Above Index, Amount [10] $ 450  
Par / Shares 4,869  
Cost $ 4,843  
Fair Value [6] $ 4,869  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Anteriad, LLC (f/k/a MeritDirect, LLC | Media: Advertising, Printing and Publishing    
Schedule Of Investments [Line Items]    
Maturity May 23, 2024  
Industry Media: Advertising, Printing & Publishing  
Current Coupon 10.23%  
Basis Point Spread Above Index [10] 3M L+550  
Basis Point Spread Above Index, Amount [10] $ 550  
Par / Shares 5,213  
Cost $ 5,149  
Fair Value [6] $ 5,213  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Any Hour Services | Professional Services    
Schedule Of Investments [Line Items]    
Maturity Jul. 21, 2027  
Industry Professional Services  
Current Coupon 10.17%  
Basis Point Spread Above Index [10] 3M L+525  
Basis Point Spread Above Index, Amount [10] $ 525  
Par / Shares 3,510  
Cost $ 3,441  
Fair Value [6] $ 3,413  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Apex Service Partners, LLC | Diversified Consumer Services    
Schedule Of Investments [Line Items]    
Maturity Jul. 31, 2025  
Industry Diversified Consumer Services  
Current Coupon 9.46%  
Basis Point Spread Above Index [10] 1M L+525  
Basis Point Spread Above Index, Amount [10] $ 525  
Par / Shares 1,010  
Cost $ 1,010  
Fair Value [6] 1,005  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Apex Service Partners, LLC | Term Loan B | Diversified Consumer Services    
Schedule Of Investments [Line Items]    
Basis Point Spread Above Index, Amount [10] $ 550  
Par / Shares 2,197  
Cost $ 2,197  
Fair Value [6] $ 2,186  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Apex Service Partners, LLC | Term Loan C | Diversified Consumer Services    
Schedule Of Investments [Line Items]    
Maturity Jul. 31, 2025  
Industry Diversified Consumer Services  
Current Coupon 9.58%  
Basis Point Spread Above Index [10] 3M L+525  
Basis Point Spread Above Index, Amount [10] $ 525  
Par / Shares 11,069  
Cost $ 11,010  
Fair Value [6] $ 11,014  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Applied Technical Services, LLC | Term Loan C | Diversified Consumer Services    
Schedule Of Investments [Line Items]    
Maturity Dec. 29, 2026  
Industry Commercial Services & Supplies  
Current Coupon 10.48%  
Basis Point Spread Above Index [10] 3M L+575  
Basis Point Spread Above Index, Amount [10] $ 575  
Par / Shares 8,400  
Cost $ 8,301  
Fair Value [6] $ 8,190  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Arcfield Acquisition Corp. | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity Mar. 07, 2028  
Industry Aerospace and Defense  
Current Coupon 10.02%  
Basis Point Spread Above Index [10] SOFR + 575  
Basis Point Spread Above Index, Amount [10] $ 575  
Par / Shares 4,665  
Cost $ 4,580  
Fair Value [6] $ 4,571  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Beta Plus Technologies, Inc. | Business Services    
Schedule Of Investments [Line Items]    
Maturity Jul. 01, 2029  
Industry Business Services  
Current Coupon 8.87%  
Basis Point Spread Above Index [10] SOFR + 525  
Basis Point Spread Above Index, Amount [10] $ 525  
Par / Shares 4,988  
Cost $ 4,893  
Fair Value [6] $ 4,938  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Blackhawk Industrial Distribution, Inc. | Distributors    
Schedule Of Investments [Line Items]    
Maturity Sep. 17, 2024  
Industry Distributors  
Current Coupon 9.73%  
Basis Point Spread Above Index [10] SOFR + 500  
Basis Point Spread Above Index, Amount [10] $ 500  
Par / Shares 15,250  
Cost $ 15,083  
Fair Value [6] $ 14,914  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Broder Bros., Co. | Consumer Products    
Schedule Of Investments [Line Items]    
Maturity Dec. 02, 2022  
Industry Consumer Products  
Current Coupon 10.73%  
Basis Point Spread Above Index [10] 3M L+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 2,395  
Cost $ 2,395  
Fair Value [6] $ 2,395  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Burgess Point Purchaser Corporation | Automobiles    
Schedule Of Investments [Line Items]    
Maturity Sep. 26, 2029  
Industry Automotive  
Current Coupon 9.41%  
Basis Point Spread Above Index [10] 3M L+525  
Basis Point Spread Above Index, Amount [10] $ 525  
Par / Shares 450  
Cost $ 419  
Fair Value [6] $ 406  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | By Light Professional IT Services, LLC | High Tech Industries    
Schedule Of Investments [Line Items]    
Maturity May 16, 2024  
Industry High Tech Industries  
Current Coupon 10.40%  
Basis Point Spread Above Index [10] 1M L+625  
Basis Point Spread Above Index, Amount [10] $ 625  
Par / Shares 14,671  
Cost $ 14,627  
Fair Value [6] $ 14,524  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Cadence Aerospace, LLC | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity Nov. 14, 2023  
Industry Aerospace and Defense  
Current Coupon 12.92%  
Basis Point Spread Above Index [10] 3M L+850  
Basis Point Spread Above Index, Amount [10] $ 850  
Par / Shares 12,448  
Cost $ 12,426  
Fair Value [6] $ 12,224  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Cartessa Aesthetics, LLC | Distributors    
Schedule Of Investments [Line Items]    
Maturity May 13, 2028  
Industry Distributors  
Current Coupon 10.58%  
Basis Point Spread Above Index [10] SOFR + 600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 9,709  
Cost $ 9,528  
Fair Value [6] $ 9,612  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | CF512, Inc. | Media    
Schedule Of Investments [Line Items]    
Maturity Aug. 20, 2026  
Industry Media  
Current Coupon 10.76%  
Basis Point Spread Above Index [10] 3M L+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 4,938  
Cost $ 4,858  
Fair Value [6] $ 4,839  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | CHA Holdings, Inc. | Construction & Engineering    
Schedule Of Investments [Line Items]    
Maturity Apr. 10, 2025  
Industry Construction and Engineering  
Current Coupon 9.23%  
Basis Point Spread Above Index [10] 3M L+450  
Basis Point Spread Above Index, Amount [10] $ 450  
Par / Shares 5,542  
Cost $ 5,479  
Fair Value [6] $ 5,542  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Challenger Performance Optimization, Inc. | Business Services    
Schedule Of Investments [Line Items]    
Maturity Aug. 31, 2023  
Industry Business Services  
Current Coupon 10.82%  
Basis Point Spread Above Index [10] 1M L+575  
Basis Point Spread Above Index, Amount [10] $ 575  
Current Coupons, PIK 1.00%  
Par / Shares 9,230  
Cost $ 9,212  
Fair Value [6] $ 8,907  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Connatix Buyer, Inc. | Media    
Schedule Of Investments [Line Items]    
Maturity Jul. 13, 2027  
Industry Media  
Current Coupon 10.14%  
Basis Point Spread Above Index [10] 3M L+550  
Basis Point Spread Above Index, Amount [10] $ 550  
Par / Shares 3,897  
Cost $ 3,835  
Fair Value [6] $ 3,771  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Crane 1 Services, Inc. | Commercial Services & Supplies    
Schedule Of Investments [Line Items]    
Maturity Aug. 16, 2027  
Industry Commercial Services & Supplies  
Current Coupon 10.48%  
Basis Point Spread Above Index [10] 3M L+575  
Basis Point Spread Above Index, Amount [10] $ 575  
Par / Shares 2,105  
Cost $ 2,079  
Fair Value [6] $ 2,084  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Dr. Squatch, LLC | Personal Products    
Schedule Of Investments [Line Items]    
Maturity Aug. 31, 2027  
Industry Personal Products  
Current Coupon 10.48%  
Basis Point Spread Above Index [10] 3M L+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 14,825  
Cost $ 14,587  
Fair Value [6] $ 14,603  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | DRI Holding Inc. | Media    
Schedule Of Investments [Line Items]    
Maturity Dec. 21, 2028  
Industry Media  
Current Coupon 9.63%  
Basis Point Spread Above Index [10] 1M L+525  
Basis Point Spread Above Index, Amount [10] $ 525  
Par / Shares 2,647  
Cost $ 2,415  
Fair Value [6] $ 2,267  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | DRS Holdings III, Inc. | Consumer Goods: Durable    
Schedule Of Investments [Line Items]    
Maturity Nov. 03, 2025  
Industry Consumer Goods: Durable  
Current Coupon 10.47%  
Basis Point Spread Above Index [10] 1M L+575  
Basis Point Spread Above Index, Amount [10] $ 575  
Par / Shares 14,666  
Cost $ 14,595  
Fair Value [6] $ 14,196  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Duraco Specialty Tapes LLC | Containers and Packaging    
Schedule Of Investments [Line Items]    
Maturity Jun. 30, 2024  
Industry Containers and Packaging  
Current Coupon 9.89%  
Basis Point Spread Above Index [10] 1M L+550  
Basis Point Spread Above Index, Amount [10] $ 550  
Par / Shares 10,252  
Cost $ 10,143  
Fair Value [6] $ 10,088  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | ECL Entertainment, LLC | Hotels, Restaurants and Leisure    
Schedule Of Investments [Line Items]    
Maturity May 01, 2028  
Industry Hotels, Restaurants and Leisure  
Current Coupon 11.88%  
Basis Point Spread Above Index [10] 3M L+750  
Basis Point Spread Above Index, Amount [10] $ 750  
Par / Shares 2,614  
Cost $ 2,592  
Fair Value [6] $ 2,605  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | ECM Industries, LLC | Electronic Equipment, Instruments, and Components    
Schedule Of Investments [Line Items]    
Maturity Dec. 23, 2025  
Industry Electronic Equipment, Instruments, and Components  
Current Coupon 9.48%  
Basis Point Spread Above Index [10] 3M L+475  
Basis Point Spread Above Index, Amount [10] $ 475  
Par / Shares 4,961  
Cost $ 4,961  
Fair Value [6] $ 4,725  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Electro Rent Corporation | Electronic Equipment, Instruments, and Components    
Schedule Of Investments [Line Items]    
Maturity Jan. 17, 2024  
Industry Electronic Equipment, Instruments, and Components  
Current Coupon 10.27%  
Basis Point Spread Above Index [10] 3M L+550  
Basis Point Spread Above Index, Amount [10] $ 550  
Par / Shares 2,743  
Cost $ 2,621  
Fair Value [6] $ 2,633  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Exigo Intermediate II, LLC | Software    
Schedule Of Investments [Line Items]    
Maturity Mar. 15, 2027  
Industry Software  
Current Coupon 10.13%  
Basis Point Spread Above Index [10] 1M L+575  
Basis Point Spread Above Index, Amount [10] $ 575  
Par / Shares 12,903  
Cost $ 12,724  
Fair Value [6] $ 12,644  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Fairbanks More Defense | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity Jun. 17, 2028  
Industry Aerospace and Defense  
Current Coupon 9.48%  
Basis Point Spread Above Index [10] 3M L+475  
Basis Point Spread Above Index, Amount [10] $ 475  
Par / Shares 10,273  
Cost $ 10,214  
Fair Value [6] $ 9,742  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Gantech Acquisition Corp. | IT Services    
Schedule Of Investments [Line Items]    
Maturity May 14, 2026  
Industry IT Services  
Current Coupon 10.63%  
Basis Point Spread Above Index [10] 1M L+625  
Basis Point Spread Above Index, Amount [10] $ 625  
Par / Shares 14,563  
Cost $ 14,365  
Fair Value [6] $ 14,126  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Global Holdings InterCo LLC | Diversified Financial Services    
Schedule Of Investments [Line Items]    
Maturity Mar. 16, 2026  
Industry Diversified Financial Services  
Current Coupon 10.19%  
Basis Point Spread Above Index [10] 3M L+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 3,894  
Cost $ 3,879  
Fair Value [6] $ 3,719  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Graffiti Buyer, Inc. | Trading Companies & Distributors    
Schedule Of Investments [Line Items]    
Maturity Aug. 10, 2027  
Industry Trading Companies & Distributors  
Current Coupon 10.23%  
Basis Point Spread Above Index [10] 3M L+575  
Basis Point Spread Above Index, Amount [10] $ 575  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Hancock Roofing and Construction L.L.C. | Insurance    
Schedule Of Investments [Line Items]    
Maturity Dec. 31, 2026  
Industry Insurance  
Current Coupon 10.23%  
Basis Point Spread Above Index [10] 1M L+550  
Basis Point Spread Above Index, Amount [10] $ 550  
Par / Shares 2,392  
Cost $ 2,349  
Fair Value [6] $ 2,344  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Holdco Sands Intermediate, LLC | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity Nov. 23, 2028  
Industry Aerospace and Defense  
Current Coupon 10.17%  
Basis Point Spread Above Index [10] 3M L+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 4,950  
Cost $ 4,865  
Fair Value [6] $ 4,851  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | HW Holdco, LLC | Media    
Schedule Of Investments [Line Items]    
Maturity Dec. 10, 2024  
Industry Media  
Current Coupon 9.34%  
Basis Point Spread Above Index [10] 6M L+500  
Basis Point Spread Above Index, Amount [10] $ 500  
Par / Shares 3,029  
Cost $ 2,988  
Fair Value [6] $ 2,991  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Icon Partners III, LP | Automobiles Industry    
Schedule Of Investments [Line Items]    
Maturity May 11, 2028  
Industry Automobiles  
Current Coupon 8.82%  
Basis Point Spread Above Index [10] 3M L+450  
Basis Point Spread Above Index, Amount [10] $ 450  
Par / Shares 2,322  
Cost $ 2,003  
Fair Value [6] $ 1,558  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | IDC Infusion Services, Inc. | Healthcare Equipment and Supplies    
Schedule Of Investments [Line Items]    
Maturity Dec. 30, 2026  
Industry Healthcare Equipment and Supplies  
Current Coupon 11.23%  
Basis Point Spread Above Index [10] SOFR+650  
Basis Point Spread Above Index, Amount $ 650  
Par / Shares 9,925  
Cost $ 9,847  
Fair Value [6] $ 9,578  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Imagine Acquisitionco, LLC | Software    
Schedule Of Investments [Line Items]    
Maturity Nov. 15, 2027  
Industry Software  
Current Coupon 10.14%  
Basis Point Spread Above Index [10] 1M L+550  
Basis Point Spread Above Index, Amount [10] $ 550  
Par / Shares 5,350  
Cost $ 5,256  
Fair Value [6] $ 5,190  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Inception Fertility Ventures, LLC | Healthcare Providers and Services    
Schedule Of Investments [Line Items]    
Maturity Dec. 07, 2023  
Industry Healthcare Providers and Services  
Current Coupon 8.55%  
Basis Point Spread Above Index [10] SOFR+700  
Basis Point Spread Above Index, Amount [10] $ 700  
Par / Shares 1,658  
Cost $ 16,333  
Fair Value [6] $ 16,247  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Infinity Home Services Holdco, Inc. | Commercial Services & Supplies    
Schedule Of Investments [Line Items]    
Maturity Dec. 28, 2028  
Industry Commercial Services & Supplies  
Current Coupon 11.40%  
Basis Point Spread Above Index [10] SOFR+685  
Basis Point Spread Above Index, Amount [10] $ 685  
Par / Shares 6,136  
Cost $ 6,016  
Fair Value [6] $ 6,014  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Integrative Nutrition, LLC | Diversified Consumer Services    
Schedule Of Investments [Line Items]    
Maturity Sep. 29, 2023  
Industry Diversified Consumer Services  
Current Coupon 9.48%  
Basis Point Spread Above Index [10] 3M L+450  
Basis Point Spread Above Index, Amount [10] $ 450  
Par / Shares 11,150  
Cost $ 11,135  
Fair Value [6] $ 10,927  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Integrity Marketing Acquisition, LLC | Insurance    
Schedule Of Investments [Line Items]    
Maturity Aug. 27, 2025  
Industry Insurance  
Current Coupon 10.81%  
Basis Point Spread Above Index [10] 1M L+575  
Basis Point Spread Above Index, Amount [10] $ 575  
Par / Shares 5,951  
Cost $ 5,877  
Fair Value [6] $ 5,862  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | ITI Holdings, Inc. | IT Services    
Schedule Of Investments [Line Items]    
Maturity Mar. 03, 2028  
Industry IT Services  
Current Coupon 10.08%  
Basis Point Spread Above Index [10] SOFR + 550  
Basis Point Spread Above Index, Amount [10] $ 550  
Par / Shares 3,970  
Cost $ 3,909  
Fair Value [6] $ 3,891  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | K2 Pure Solutions NoCal, L.P. | Chemicals, Plastics and Rubber    
Schedule Of Investments [Line Items]    
Maturity Dec. 20, 2023  
Industry Chemicals, Plastics and Rubber  
Current Coupon 12.38%  
Basis Point Spread Above Index [10] 1M L+800  
Basis Point Spread Above Index, Amount [10] $ 800  
Par / Shares 18,057  
Cost $ 17,945  
Fair Value [6] $ 18,057  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Kinetic Purchaser, LLC | Personal Products    
Schedule Of Investments [Line Items]    
Maturity Nov. 10, 2027  
Industry Personal Products  
Current Coupon 10.73%  
Basis Point Spread Above Index [10] 3M L+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 16,788  
Cost $ 16,425  
Fair Value [6] $ 16,368  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Lash OpCo, LLC | Personal Products    
Schedule Of Investments [Line Items]    
Maturity Feb. 18, 2027  
Industry Personal Products  
Current Coupon 11.17%  
Basis Point Spread Above Index [10] 3M L+700  
Basis Point Spread Above Index, Amount [10] $ 700  
Par / Shares 14,319  
Cost $ 14,052  
Fair Value [6] $ 14,032  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | LAV Gear Holdings, Inc. | Capital Equipment    
Schedule Of Investments [Line Items]    
Maturity Oct. 31, 2024  
Industry Capital Equipment  
Current Coupon 10.23%  
Basis Point Spread Above Index [10] 3M L+550  
Basis Point Spread Above Index, Amount [10] $ 550  
Current Coupons, PIK 2.00%  
Par / Shares 12,796  
Cost $ 10,518  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Lightspeed Buyer Inc. | Healthcare Providers and Services    
Schedule Of Investments [Line Items]    
Maturity Feb. 03, 2026  
Industry Healthcare Providers and Services  
Current Coupon 9.84%  
Basis Point Spread Above Index [10] 3M L+575  
Basis Point Spread Above Index, Amount [10] $ 575  
Par / Shares 10,571  
Cost $ 10,416  
Fair Value [6] $ 10,307  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Lucky Bucks L L C | Hotel, Gaming and Leisure    
Schedule Of Investments [Line Items]    
Maturity Jul. 20, 2027  
Industry Hotel, Gaming and Leisure  
Current Coupon 10.43%  
Basis Point Spread Above Index [10] 3M L+550  
Basis Point Spread Above Index, Amount [10] $ 550  
Par / Shares 4,275  
Cost $ 4,206  
Fair Value [6] $ 2,426  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Magenta Buyer L L C | Software    
Schedule Of Investments [Line Items]    
Maturity Jul. 31, 2028  
Industry Software  
Current Coupon 9.17%  
Basis Point Spread Above Index [10] 1M L+500  
Basis Point Spread Above Index, Amount [10] $ 500  
Par / Shares 3,029  
Cost $ 2,846  
Fair Value [6] $ 2,578  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Marketplace Events, LLC | Media: Diversified and Production    
Schedule Of Investments [Line Items]    
Maturity Sep. 30, 2026  
Industry Media: Diversified and Production  
Current Coupon 9.90%  
Basis Point Spread Above Index [10] 1M L+525  
Basis Point Spread Above Index, Amount [10] $ 525  
Par / Shares 4,837  
Cost $ 3,587  
Fair Value [6] $ 4,837  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Marketplace Events, LLC | Super Priority First Lien Term Loan | Media: Diversified and Production    
Schedule Of Investments [Line Items]    
Maturity Sep. 30, 2025  
Industry Media: Diversified and Production  
Current Coupon 9.90%  
Basis Point Spread Above Index [10] 1M L+525  
Basis Point Spread Above Index, Amount [10] $ 525  
Par / Shares 647  
Cost $ 647  
Fair Value [6] $ 647  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Marketplace Events, LLC | Super Priority First Lien Unfunded Term Loan | Media: Diversified and Production    
Schedule Of Investments [Line Items]    
Maturity Sep. 30, 2025  
Industry Media: Diversified and Production  
Par / Shares 589  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Mars Acquisition Holdings Corp. | Media    
Schedule Of Investments [Line Items]    
Maturity May 14, 2026  
Industry Media  
Current Coupon 10.23%  
Basis Point Spread Above Index [10] 1M L+550  
Basis Point Spread Above Index, Amount [10] $ 550  
Par / Shares 11,676  
Cost $ 11,531  
Fair Value [6] $ 11,560  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | MBS Holdings, Inc. | Internet Software and Services    
Schedule Of Investments [Line Items]    
Maturity Apr. 16, 2027  
Industry Internet Software and Services  
Current Coupon 10.13%  
Basis Point Spread Above Index [10] 3M L+575  
Basis Point Spread Above Index, Amount [10] $ 575  
Par / Shares 7,388  
Cost $ 7,282  
Fair Value [6] $ 7,314  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | MDI Buyer, Inc. | Chemicals, Plastics and Rubber    
Schedule Of Investments [Line Items]    
Maturity Jul. 25, 2028  
Industry Chemicals, Plastics and Rubber  
Current Coupon 10.54%  
Basis Point Spread Above Index [10] 3M L+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 6,429  
Cost $ 6,305  
Fair Value [6] $ 6,291  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Meadowlark Acquirer, LLC | Professional Services    
Schedule Of Investments [Line Items]    
Maturity Dec. 10, 2027  
Industry Professional Services  
Current Coupon 9.73%  
Basis Point Spread Above Index [10] 3M L+550  
Basis Point Spread Above Index, Amount [10] $ 550  
Par / Shares 2,390  
Cost $ 2,349  
Fair Value [6] $ 2,366  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Mission Critical Electronics, Inc. | Capital Equipment    
Schedule Of Investments [Line Items]    
Maturity Mar. 28, 2024  
Industry Capital Equipment  
Current Coupon 9.73%  
Basis Point Spread Above Index [10] SOFR+500  
Basis Point Spread Above Index, Amount [10] $ 500  
Par / Shares 5,814  
Cost $ 5,804  
Fair Value [6] $ 5,791  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Municipal Emergency Services, Inc. | Distributors    
Schedule Of Investments [Line Items]    
Maturity Sep. 28, 2027  
Industry Distributors  
Current Coupon 8.67%  
Basis Point Spread Above Index [10] 3M L+500  
Basis Point Spread Above Index, Amount [10] $ 500  
Par / Shares 3,456  
Cost $ 3,399  
Fair Value [6] $ 3,318  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | NBH Group LLC | Healthcare, Education & Childcare    
Schedule Of Investments [Line Items]    
Maturity Aug. 19, 2026  
Industry Healthcare, Education & Childcare  
Current Coupon 9.05%  
Basis Point Spread Above Index [10] 1M L+525  
Basis Point Spread Above Index, Amount [10] $ 525  
Par / Shares 10,793  
Cost $ 10,624  
Fair Value [6] $ 10,793  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | New Milani Group LLC | Consumer Goods: Non-Durable    
Schedule Of Investments [Line Items]    
Maturity Jun. 06, 2024  
Industry Consumer Goods: Non-Durable  
Current Coupon 9.17%  
Basis Point Spread Above Index [10] 3M L+650  
Basis Point Spread Above Index, Amount [10] $ 650  
Par / Shares 14,325  
Cost $ 14,288  
Fair Value [6] $ 14,110  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | One Stop Mailing, LLC | Air Freight and Logistics    
Schedule Of Investments [Line Items]    
Maturity May 07, 2027  
Industry Air Freight and Logistics  
Current Coupon 10.63%  
Basis Point Spread Above Index [10] 1M L+625  
Basis Point Spread Above Index, Amount [10] $ 625  
Par / Shares 14,561  
Cost $ 14,326  
Fair Value [6] $ 14,124  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Output Services Group, Inc. | Business Services    
Schedule Of Investments [Line Items]    
Maturity Mar. 27, 2024  
Industry Business Services  
Current Coupon 11.30%  
Basis Point Spread Above Index [10] 3M L+675  
Basis Point Spread Above Index, Amount [10] $ 675  
Par / Shares 7,691  
Cost $ 7,681  
Fair Value [6] $ 5,768  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Owl Acquisition, LLC | Professional Services    
Schedule Of Investments [Line Items]    
Maturity Feb. 04, 2028  
Industry Professional Services  
Current Coupon 8.41%  
Basis Point Spread Above Index [10] 3M L+575  
Basis Point Spread Above Index, Amount [10] $ 575  
Par / Shares 3,980  
Cost $ 3,910  
Fair Value [6] $ 3,881  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Ox Two, LLC | Construction and Building    
Schedule Of Investments [Line Items]    
Maturity May 18, 2026  
Industry Construction and Building  
Current Coupon 10.84%  
Basis Point Spread Above Index [10] 3M L+700  
Basis Point Spread Above Index, Amount [10] $ 700  
Par / Shares 4,913  
Cost $ 4,858  
Fair Value [6] $ 4,765  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | PH Beauty Holdings III, Inc. | Wholesale    
Schedule Of Investments [Line Items]    
Maturity Sep. 29, 2025  
Industry Wholesale  
Current Coupon 9.73%  
Basis Point Spread Above Index [10] 1M L+500  
Basis Point Spread Above Index, Amount [10] $ 500  
Par / Shares 9,568  
Cost $ 9,243  
Fair Value [6] $ 7,654  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | PL Acquisitionco, LLC | Textiles, Apparel and Luxury Goods    
Schedule Of Investments [Line Items]    
Maturity Nov. 09, 2027  
Industry Textiles, Apparel and Luxury Goods  
Current Coupon 10.88%  
Basis Point Spread Above Index [10] 1M L+650  
Basis Point Spread Above Index, Amount [10] $ 650  
Par / Shares 8,217  
Cost $ 8,095  
Fair Value [6] $ 8,012  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | PlayPower, Inc. | Consumer Goods: Durable    
Schedule Of Investments [Line Items]    
Maturity May 08, 2026  
Industry Consumer Goods: Durable  
Current Coupon 12.00%  
Basis Point Spread Above Index [10] 3M L+450  
Basis Point Spread Above Index, Amount [10] $ 450  
Par / Shares 2,572  
Cost $ 2,497  
Fair Value [6] $ 2,238  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Pragmatic Institute, LLC | Education    
Schedule Of Investments [Line Items]    
Maturity Jul. 06, 2028  
Industry Education  
Current Coupon 10.33%  
Basis Point Spread Above Index [10] SOFR+575  
Basis Point Spread Above Index, Amount [10] $ 575  
Par / Shares 11,222  
Cost $ 11,068  
Fair Value [6] $ 11,110  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Quantic Electronics, LLC | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity Nov. 19, 2026  
Industry Aerospace and Defense  
Current Coupon 10.96%  
Basis Point Spread Above Index [10] 1M L+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 2,829  
Cost $ 2,782  
Fair Value [6] $ 2,772  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Quantic Electronics, LLC | Unfunded Term Loan | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity Nov. 19, 2026  
Industry Aerospace and Defense  
Basis Point Spread Above Index [10] 1M L+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 1,104  
Fair Value [6] $ (11)  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Reception Purchaser, LLC | Air Freight and Logistics    
Schedule Of Investments [Line Items]    
Maturity Feb. 28, 2028  
Industry Air Freight and Logistics  
Current Coupon 10.42%  
Basis Point Spread Above Index [10] SOFR+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 4,963  
Cost $ 4,894  
Fair Value [6] $ 4,764  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Recteq, LLC | Leisure Products    
Schedule Of Investments [Line Items]    
Maturity Jan. 29, 2026  
Industry Leisure Products  
Current Coupon 10.98%  
Basis Point Spread Above Index [10] 3M L+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 4,913  
Cost $ 4,848  
Fair Value [6] $ 4,741  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Research Now Group, Inc. and Dynata, LLC | Diversified Consumer Services    
Schedule Of Investments [Line Items]    
Maturity Dec. 20, 2024  
Industry Diversified Consumer Services  
Current Coupon 8.84%  
Basis Point Spread Above Index [10] 3M L+550  
Basis Point Spread Above Index, Amount [10] $ 550  
Par / Shares 12,531  
Cost $ 12,342  
Fair Value [6] $ 9,286  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Sales Benchmark Index LLC | Professional Services    
Schedule Of Investments [Line Items]    
Maturity Jan. 03, 2025  
Industry Professional Services  
Current Coupon 10.73%  
Basis Point Spread Above Index [10] 3M L+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 5,013  
Cost $ 4,965  
Fair Value [6] $ 4,988  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Sargent & Greenleaf Inc. | Wholesale    
Schedule Of Investments [Line Items]    
Maturity Dec. 20, 2024  
Industry Wholesale  
Current Coupon 9.89%  
Basis Point Spread Above Index [10] 3M L+550  
Basis Point Spread Above Index, Amount [10] $ 550  
Par / Shares 5,183  
Cost $ 5,150  
Fair Value [6] $ 5,105  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Schlesinger Global, Inc. | Business Services    
Schedule Of Investments [Line Items]    
Maturity Jul. 14, 2025  
Industry Business Services  
Current Coupon 10.92%  
Basis Point Spread Above Index [10] SOFR+700  
Basis Point Spread Above Index, Amount [10] $ 700  
Par / Shares 11,832  
Cost $ 11,816  
Fair Value [6] $ 11,536  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Seaway Buyer, LLC | Chemicals, Plastics and Rubber    
Schedule Of Investments [Line Items]    
Maturity Jun. 13, 2029  
Industry Chemicals, Plastics and Rubber  
Current Coupon 10.73%  
Basis Point Spread Above Index [10] SOFR+605  
Basis Point Spread Above Index, Amount [10] $ 605  
Par / Shares 4,988  
Cost $ 4,916  
Fair Value [6] $ 4,913  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Sigma Defense Systems, LLC | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity Dec. 18, 2025  
Industry Aerospace and Defense  
Current Coupon 12.17%  
Basis Point Spread Above Index [10] 1M L+850  
Basis Point Spread Above Index, Amount [10] $ 850  
Par / Shares 14,621  
Cost $ 14,338  
Fair Value [6] $ 14,329  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Smile Brands Inc. | Healthcare And Pharmaceuticals    
Schedule Of Investments [Line Items]    
Maturity Oct. 14, 2025  
Industry Healthcare and Pharmaceuticals  
Current Coupon 7.05%  
Basis Point Spread Above Index [10] 3M L+450  
Basis Point Spread Above Index, Amount [10] $ 450  
Par / Shares 11,887  
Cost $ 11,796  
Fair Value [6] $ 11,441  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Solutionreach, Inc. | Healthcare And Pharmaceuticals    
Schedule Of Investments [Line Items]    
Maturity Jan. 17, 2024  
Industry Healthcare and Pharmaceuticals  
Current Coupon 8.87%  
Basis Point Spread Above Index [10] 1M L+575  
Basis Point Spread Above Index, Amount [10] $ 575  
Par / Shares 5,630  
Cost $ 5,613  
Fair Value [6] $ 5,478  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Spendmend Holdings LLC | Healthcare Technology    
Schedule Of Investments [Line Items]    
Maturity Mar. 01, 2028  
Industry Healthcare Technology  
Current Coupon 8.63%  
Basis Point Spread Above Index [10] SOFR+575  
Basis Point Spread Above Index, Amount [10] $ 575  
Par / Shares 2,949  
Cost $ 2,910  
Fair Value [6] $ 2,851  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | STV Group Incorporated | Construction and Building    
Schedule Of Investments [Line Items]    
Maturity Dec. 11, 2026  
Industry Construction and Building  
Current Coupon 8.37%  
Basis Point Spread Above Index [10] 3M L+525  
Basis Point Spread Above Index, Amount [10] $ 525  
Par / Shares 9,075  
Cost $ 9,015  
Fair Value [6] $ 9,030  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Summit Behavioral Healthcare, LLC | Healthcare And Pharmaceuticals    
Schedule Of Investments [Line Items]    
Maturity Nov. 24, 2028  
Industry Healthcare and Pharmaceuticals  
Current Coupon 9.45%  
Basis Point Spread Above Index [10] 3M L+475  
Basis Point Spread Above Index, Amount [10] $ 475  
Par / Shares 1,800  
Cost $ 1,698  
Fair Value [6] $ 1,692  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | System Planning and Analysis, Inc. (f/k/a Management Consulting & Research, LLC) | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity Aug. 16, 2027  
Industry Aerospace and Defense  
Current Coupon 10.94%  
Basis Point Spread Above Index [10] SOFR+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 14,850  
Cost $ 14,603  
Fair Value [6] $ 14,657  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Teneo Holdings LLC | Business Services    
Schedule Of Investments [Line Items]    
Maturity Jul. 18, 2025  
Industry Business Services  
Current Coupon 9.67%  
Basis Point Spread Above Index [10] 3M L+525  
Basis Point Spread Above Index, Amount [10] $ 525  
Par / Shares 3,127  
Cost $ 3,086  
Fair Value [6] 3,001  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Teneo Holdings LLC | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Basis Point Spread Above Index, Amount [10] 500  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | The Aegis Technologies Group, LLC | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity   Oct. 31, 2025
Industry   Aerospace and Defense
Current Coupon   9.55%
Basis Point Spread Above Index [11]   3M L+500
Basis Point Spread Above Index, Amount [11]   $ 500
Par / Shares   5,659,000
Cost   $ 5,600
Fair Value [9]   $ 5,603
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | The Bluebird Group LLC | Professional Services    
Schedule Of Investments [Line Items]    
Maturity   Jul. 27, 2026
Industry   Professional Services
Current Coupon   10.67%
Basis Point Spread Above Index [11]   1M L+700
Basis Point Spread Above Index, Amount [11]   $ 700
Par / Shares   1,707,000
Cost   $ 1,679
Fair Value [9]   $ 1,724
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | The Infosoft Group, LLC | Media: Broadcasting and Subscription    
Schedule Of Investments [Line Items]    
Maturity   Sep. 16, 2024
Industry   Media: Broadcasting and Subscription
Current Coupon   8.47%
Basis Point Spread Above Index [11]   3M L+525
Basis Point Spread Above Index, Amount [11]   $ 525
Par / Shares   12,957,000
Cost   $ 12,952
Fair Value [9]   $ 12,859
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | The Vertex Companies, LLC | Construction & Engineering    
Schedule Of Investments [Line Items]    
Maturity   Aug. 30, 2027
Industry   Construction and Engineering
Current Coupon   8.62%
Basis Point Spread Above Index [11]   1M L+550
Basis Point Spread Above Index, Amount [11]   $ 550
Par / Shares   5,578,000
Cost   $ 5,479
Fair Value [9]   $ 5,550
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | TPC Canada Parent, Inc. and TPC US Parent, LLC | Consumer Goods: Non-Durable    
Schedule Of Investments [Line Items]    
Maturity   Nov. 24, 2025
Industry   Consumer Goods: Non-Durable
Current Coupon   8.30%
Basis Point Spread Above Index [11]   3M L+475
Basis Point Spread Above Index, Amount [11]   $ 475
Par / Shares   8,744,000
Cost   $ 8,604
Fair Value [9]   $ 8,482
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | TVC Enterprises, LLC | Diversified Consumer Services    
Schedule Of Investments [Line Items]    
Maturity   Mar. 26, 2026
Industry   Diversified Consumer Services
Current Coupon   8.87%
Basis Point Spread Above Index [11]   3M L+550
Basis Point Spread Above Index, Amount [11]   $ 550
Par / Shares   14,952,000
Cost   $ 14,871
Fair Value [9]   $ 14,578
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | TWS Acquisition Corporation | Diversified Consumer Services    
Schedule Of Investments [Line Items]    
Maturity   Jun. 16, 2025
Industry   Diversified Consumer Services
Current Coupon   8.76%
Basis Point Spread Above Index [11]   3M L+625
Basis Point Spread Above Index, Amount [11]   $ 625
Par / Shares   5,468,000
Cost   $ 5,450
Fair Value [9]   $ 5,441
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Tyto Athene, LLC | IT Services    
Schedule Of Investments [Line Items]    
Maturity   Apr. 01, 2028
Industry   IT Services
Current Coupon   7.76%
Basis Point Spread Above Index [11]   3M L+550
Basis Point Spread Above Index, Amount [11]   $ 550
Par / Shares   15,550,000
Cost   $ 15,421
Fair Value [9]   $ 14,446
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | UBEO, LLC | Capital Equipment    
Schedule Of Investments [Line Items]    
Maturity   Apr. 03, 2024
Industry   Capital Equipment
Current Coupon   8.17%
Basis Point Spread Above Index [11]   3M L+450
Basis Point Spread Above Index, Amount [11]   $ 450
Par / Shares   17,390,000
Cost   $ 17,305
Fair Value [9]   $ 17,129
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Unique Indoor Comfort L L C [Member] | Home and Office Furnishings, Housewares    
Schedule Of Investments [Line Items]    
Maturity   May 24, 2027
Industry   Home and Office Furnishings, Housewares
Current Coupon   8.95%
Basis Point Spread Above Index [11]   SOFR+525
Basis Point Spread Above Index, Amount [11]   $ 525
Par / Shares   4,975,000
Cost   $ 4,880
Fair Value [9]   $ 4,866
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Walker Edison Furniture Company LLC | Wholesale    
Schedule Of Investments [Line Items]    
Maturity   Mar. 31, 2027
Industry   Wholesale
Current Coupon   12.42%
Basis Point Spread Above Index [11]   3M L+575
Basis Point Spread Above Index, Amount [11]   $ 575
Current Coupons, PIK   3.00%
Par / Shares   12,684,000
Cost   $ 12,438
Fair Value [9]   $ 8,473
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Wildcat Buyerco, Inc. | Electronic Equipment, Instruments, and Components    
Schedule Of Investments [Line Items]    
Maturity   Feb. 27, 2026
Industry   Electronic Equipment, Instruments, and Components
Current Coupon   9.45%
Basis Point Spread Above Index [11]   SOFR+550
Basis Point Spread Above Index, Amount [11]   $ 550
Par / Shares   8,546,000
Cost   $ 8,506
Fair Value [9]   $ 8,261
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,354.1% | Zips Car Wash, LLC | Automobiles    
Schedule Of Investments [Line Items]    
Maturity   Mar. 01, 2024
Industry   Automobiles
Current Coupon   10.35%
Basis Point Spread Above Index [11]   3M L+725
Basis Point Spread Above Index, Amount [11]   $ 725
Par / Shares   16,957,000
Cost   $ 16,711
Fair Value [9]   16,533
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,088.%    
Schedule Of Investments [Line Items]    
Cost 769,096  
Fair Value [6] $ 747,402  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,088.% | The Bluebird Group LLC | Professional Services    
Schedule Of Investments [Line Items]    
Maturity Jul. 27, 2026  
Industry Professional Services  
Current Coupon 11.98%  
Basis Point Spread Above Index [10] 1M L+700  
Basis Point Spread Above Index, Amount [10] $ 700  
Par / Shares 1,698  
Cost $ 1,672  
Fair Value [6] $ 1,666  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,088.% | The Infosoft Group, LLC | Media: Broadcasting and Subscription    
Schedule Of Investments [Line Items]    
Maturity Sep. 16, 2024  
Industry Media: Broadcasting and Subscription  
Current Coupon 9.84%  
Basis Point Spread Above Index [10] 3M L+575  
Basis Point Spread Above Index, Amount [10] $ 575  
Par / Shares 12,883  
Cost $ 12,879  
Fair Value [6] $ 12,786  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,088.% | The Vertex Companies, LLC | Construction & Engineering    
Schedule Of Investments [Line Items]    
Maturity Aug. 30, 2027  
Industry Construction and Engineering  
Current Coupon 9.88%  
Basis Point Spread Above Index [10] 1M L+550  
Basis Point Spread Above Index, Amount [10] $ 550  
Par / Shares 5,564  
Cost $ 5,469  
Fair Value [6] $ 5,447  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,088.% | TPC Canada Parent, Inc. and TPC US Parent, LLC | Consumer Goods: Non-Durable    
Schedule Of Investments [Line Items]    
Maturity Nov. 24, 2025  
Industry Consumer Goods: Non-Durable  
Current Coupon 9.61%  
Basis Point Spread Above Index [10] 3M L+550  
Basis Point Spread Above Index, Amount [10] $ 550  
Par / Shares 8,722  
Cost $ 8,592  
Fair Value [6] $ 8,484  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,088.% | TVC Enterprises, LLC | Diversified Consumer Services    
Schedule Of Investments [Line Items]    
Maturity Mar. 26, 2026  
Industry Diversified Consumer Services  
Current Coupon 10.13%  
Basis Point Spread Above Index [10] 3M L+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 14,678  
Cost $ 14,611  
Fair Value [6] $ 14,311  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,088.% | TWS Acquisition Corporation | Diversified Consumer Services    
Schedule Of Investments [Line Items]    
Maturity Jun. 16, 2025  
Industry Diversified Consumer Services  
Current Coupon 11.46%  
Basis Point Spread Above Index [10] 3M L+625  
Basis Point Spread Above Index, Amount [10] $ 625  
Par / Shares 5,468  
Cost $ 5,452  
Fair Value [6] $ 5,468  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,088.% | Tyto Athene, LLC | IT Services    
Schedule Of Investments [Line Items]    
Maturity Apr. 01, 2028  
Industry IT Services  
Current Coupon 9.25%  
Basis Point Spread Above Index [10] 3M L+550  
Basis Point Spread Above Index, Amount [10] $ 550  
Par / Shares 15,511  
Cost $ 15,387  
Fair Value [6] $ 14,053  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,088.% | UBEO, LLC | Capital Equipment    
Schedule Of Investments [Line Items]    
Maturity Apr. 03, 2024  
Industry Capital Equipment  
Current Coupon 9.23%  
Basis Point Spread Above Index [10] 3M L+450  
Basis Point Spread Above Index, Amount [10] $ 450  
Par / Shares 17,345  
Cost $ 17,273  
Fair Value [6] $ 17,085  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,088.% | Unique Indoor Comfort L L C [Member] | Home and Office Furnishings, Housewares    
Schedule Of Investments [Line Items]    
Maturity May 24, 2027  
Industry Home and Office Furnishings, Housewares  
Current Coupon 9.98%  
Basis Point Spread Above Index [10] SOFR+525  
Basis Point Spread Above Index, Amount [10] $ 525  
Par / Shares 4,963  
Cost $ 4,872  
Fair Value [6] $ 4,833  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,088.% | Walker Edison Furniture Company LLC | Wholesale    
Schedule Of Investments [Line Items]    
Maturity Mar. 31, 2027  
Industry Wholesale  
Current Coupon 0.00%  
Current Coupons, PIK 3.00%  
Par / Shares 12,684  
Cost $ 12,438  
Fair Value [6] $ 6,410  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,088.% | Wildcat Buyerco, Inc. | Electronic Equipment, Instruments, and Components    
Schedule Of Investments [Line Items]    
Maturity Feb. 27, 2026  
Industry Electronic Equipment, Instruments, and Components  
Current Coupon 10.48%  
Basis Point Spread Above Index [10] SOFR+575  
Basis Point Spread Above Index, Amount [10] $ 575  
Par / Shares 8,524  
Cost $ 8,487  
Fair Value [6] $ 8,240  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,088.% | Zips Car Wash, LLC | Automobiles    
Schedule Of Investments [Line Items]    
Maturity Mar. 01, 2024  
Industry Automobiles  
Current Coupon 11.53%  
Basis Point Spread Above Index [10] 3M L+725  
Basis Point Spread Above Index, Amount [10] $ 725  
Par / Shares 16,915  
Cost $ 16,717  
Fair Value [6] 16,534  
PennantPark Senior Secured Loan Fund I LLC | Second Lien Secured Debt    
Schedule Of Investments [Line Items]    
Cost 2,968 2,963
Fair Value $ 2,970 [6] $ 2,955 [9]
PennantPark Senior Secured Loan Fund I LLC | Second Lien Secured Debt | Inventus Power Inc | Consumer Goods: Durable    
Schedule Of Investments [Line Items]    
Maturity Sep. 29, 2024 Sep. 29, 2024
Industry Consumer Goods: Durable Consumer Goods: Durable
Current Coupon 13.23% 12.17%
Basis Point Spread Above Index 3M L+850 [10] 3M L+850 [11]
Basis Point Spread Above Index, Amount $ 850 [10] $ 850 [11]
Par / Shares 3,000 3,000,000
Cost $ 2,968 $ 2,963
Fair Value $ 2,970 [6] $ 2,955 [9]
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Apex Service Partners, LLC | Term Loan B | Diversified Consumer Services    
Schedule Of Investments [Line Items]    
Maturity Jul. 31, 2025  
Industry Diversified Consumer Services  
Current Coupon 9.67%  
Basis Point Spread Above Index [10] 3M L+550  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Cadence Aerospace, LLC | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Current Coupons, PIK 12.92%  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Graffiti Buyer, Inc. | Trading Companies & Distributors    
Schedule Of Investments [Line Items]    
Par / Shares 2,363  
Cost $ 2,319  
Fair Value [6] $ 2,268  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Lucky Bucks L L C | Hotel, Gaming and Leisure    
Schedule Of Investments [Line Items]    
Maturity   Jul. 20, 2027
Industry   Hotel, Gaming and Leisure
Current Coupon   8.31%
Basis Point Spread Above Index [11]   3M L+550
Basis Point Spread Above Index, Amount [11]   $ 550
Par / Shares   4,331,000
Cost   $ 4,258
Fair Value [9]   $ 3,183
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Magenta Buyer L L C | Software    
Schedule Of Investments [Line Items]    
Maturity   Jul. 31, 2028
Industry   Software
Current Coupon   7.87%
Basis Point Spread Above Index [11]   1M L+475
Basis Point Spread Above Index, Amount [11]   $ 475
Par / Shares   2,695,000
Cost   $ 2,539
Fair Value [9]   $ 2,425
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Marketplace Events, LLC | Media: Diversified and Production    
Schedule Of Investments [Line Items]    
Maturity   Sep. 30, 2026
Industry   Media: Diversified and Production
Current Coupon   8.19%
Basis Point Spread Above Index [11]   1M L+525
Basis Point Spread Above Index, Amount [11]   $ 525
Par / Shares   4,837,000
Cost   $ 3,527
Fair Value [9]   $ 4,837
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Marketplace Events, LLC | Super Priority First Lien Term Loan | Media: Diversified and Production    
Schedule Of Investments [Line Items]    
Maturity   Sep. 30, 2025
Industry   Media: Diversified and Production
Current Coupon   8.19%
Basis Point Spread Above Index [11]   1M L+525
Basis Point Spread Above Index, Amount [11]   $ 525
Par / Shares   647,000
Cost   $ 647
Fair Value [9]   $ 647
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Marketplace Events, LLC | Super Priority First Lien Unfunded Term Loan | Media: Diversified and Production    
Schedule Of Investments [Line Items]    
Maturity   Sep. 30, 2025
Industry   Media: Diversified and Production
Par / Shares   589,000
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Mars Acquisition Holdings Corp. | Media    
Schedule Of Investments [Line Items]    
Maturity   May 14, 2026
Industry   Media
Current Coupon   8.62%
Basis Point Spread Above Index [11]   1M L+550
Basis Point Spread Above Index, Amount [11]   $ 550
Par / Shares   9,900,000
Cost   $ 9,782
Fair Value [9]   $ 9,851
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | MBS Holdings, Inc. | Internet Software and Services    
Schedule Of Investments [Line Items]    
Maturity   Apr. 16, 2027
Industry   Internet Software and Services
Current Coupon   8.56%
Basis Point Spread Above Index [11]   3M L+575
Basis Point Spread Above Index, Amount [11]   $ 575
Par / Shares   7,406,000
Cost   $ 7,296
Fair Value [9]   $ 7,332
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | MDI Buyer, Inc. | Chemicals, Plastics and Rubber    
Schedule Of Investments [Line Items]    
Maturity   Jul. 25, 2028
Industry   Chemicals, Plastics and Rubber
Current Coupon   8.98%
Basis Point Spread Above Index [11]   3M L+500
Basis Point Spread Above Index, Amount [11]   $ 500
Par / Shares   5,000,000
Cost   $ 4,902
Fair Value [9]   $ 4,900
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Meadowlark Acquirer, LLC | Professional Services    
Schedule Of Investments [Line Items]    
Maturity   Dec. 10, 2027
Industry   Professional Services
Current Coupon   9.17%
Basis Point Spread Above Index [11]   3M L+650
Basis Point Spread Above Index, Amount [11]   $ 650
Par / Shares   2,396,000
Cost   $ 2,353
Fair Value [9]   $ 2,372
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Mission Critical Electronics, Inc. | Capital Equipment    
Schedule Of Investments [Line Items]    
Maturity   Mar. 28, 2024
Industry   Capital Equipment
Current Coupon   8.70%
Basis Point Spread Above Index [11]   SOFR+500
Basis Point Spread Above Index, Amount [11]   $ 500
Par / Shares   5,829,000
Cost   $ 5,817
Fair Value [9]   $ 5,759
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Municipal Emergency Services, Inc. | Distributors    
Schedule Of Investments [Line Items]    
Maturity   Sep. 28, 2027
Industry   Distributors
Current Coupon   8.67%
Basis Point Spread Above Index [11]   3M L+500
Basis Point Spread Above Index, Amount [11]   $ 500
Par / Shares   3,465,000
Cost   $ 3,405
Fair Value [9]   $ 3,264
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | NBH Group LLC | Healthcare, Education & Childcare    
Schedule Of Investments [Line Items]    
Maturity   Aug. 19, 2026
Industry   Healthcare, Education & Childcare
Current Coupon   7.80%
Basis Point Spread Above Index [11]   1M L+550
Basis Point Spread Above Index, Amount [11]   $ 550
Par / Shares   10,820,000
Cost   $ 10,641
Fair Value [9]   $ 10,820
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | New Milani Group LLC | Consumer Goods: Non-Durable    
Schedule Of Investments [Line Items]    
Maturity   Jun. 06, 2024
Industry   Consumer Goods: Non-Durable
Current Coupon   7.75%
Basis Point Spread Above Index [11]   3M L+500
Basis Point Spread Above Index, Amount [11]   $ 500
Par / Shares   14,363,000
Cost   $ 14,319
Fair Value [9]   $ 14,111
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | O I S Management Services L L C | Healthcare Equipment and Supplies    
Schedule Of Investments [Line Items]    
Maturity   Jul. 09, 2026
Industry   Healthcare Equipment and Supplies
Current Coupon   8.40%
Basis Point Spread Above Index [11]   SOFR+475
Basis Point Spread Above Index, Amount [11]   $ 475
Par / Shares   5,060,000
Cost   $ 4,991
Fair Value [9]   $ 5,060
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | One Stop Mailing, LLC | Air Freight and Logistics    
Schedule Of Investments [Line Items]    
Maturity   May 07, 2027
Industry   Air Freight and Logistics
Current Coupon   9.37%
Basis Point Spread Above Index [11]   1M L+625
Basis Point Spread Above Index, Amount [11]   $ 625
Par / Shares   14,598,000
Cost   $ 14,353
Fair Value [9]   $ 14,160
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Output Services Group, Inc. | Business Services    
Schedule Of Investments [Line Items]    
Maturity   Mar. 27, 2024
Industry   Business Services
Current Coupon   9.80%
Basis Point Spread Above Index [11]   3M L+425
Basis Point Spread Above Index, Amount [11]   $ 425
Par / Shares   7,682,000
Cost   $ 7,676
Fair Value [9]   $ 5,838
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Owl Acquisition, LLC | Professional Services    
Schedule Of Investments [Line Items]    
Maturity   Feb. 04, 2028
Industry   Professional Services
Current Coupon   8.41%
Basis Point Spread Above Index [11]   3M L+575
Basis Point Spread Above Index, Amount [11]   $ 575
Par / Shares   3,990,000
Cost   $ 3,918
Fair Value [9]   $ 3,890
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Ox Two, LLC | Construction and Building    
Schedule Of Investments [Line Items]    
Maturity   May 18, 2026
Industry   Construction and Building
Current Coupon   9.81%
Basis Point Spread Above Index [11]   3M L+600
Basis Point Spread Above Index, Amount [11]   $ 600
Par / Shares   4,925,000
Cost   $ 4,866
Fair Value [9]   $ 4,827
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | PH Beauty Holdings III, Inc. | Wholesale    
Schedule Of Investments [Line Items]    
Maturity   Sep. 29, 2025
Industry   Wholesale
Current Coupon   8.07%
Basis Point Spread Above Index [11]   1M L+500
Basis Point Spread Above Index, Amount [11]   $ 500
Par / Shares   9,593,000
Cost   $ 9,234
Fair Value [9]   $ 7,674
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | PL Acquisitionco, LLC | Textiles, Apparel and Luxury Goods    
Schedule Of Investments [Line Items]    
Maturity   Nov. 09, 2027
Industry   Textiles, Apparel and Luxury Goods
Current Coupon   9.62%
Basis Point Spread Above Index [11]   1M L+650
Basis Point Spread Above Index, Amount [11]   $ 650
Par / Shares   8,238,000
Cost   $ 8,111
Fair Value [9]   $ 8,032
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Plant Health Intermediate, Inc. | Chemicals, Plastics and Rubber    
Schedule Of Investments [Line Items]    
Maturity   Oct. 19, 2022
Industry   Chemicals, Plastics and Rubber
Current Coupon   8.87%
Basis Point Spread Above Index [11]   3M L+575
Basis Point Spread Above Index, Amount [11]   $ 575
Par / Shares   1,562,000
Cost   $ 1,561
Fair Value [9]   $ 1,562
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | PlayPower, Inc. | Consumer Goods: Durable    
Schedule Of Investments [Line Items]    
Maturity   May 08, 2026
Industry   Consumer Goods: Durable
Current Coupon   9.17%
Basis Point Spread Above Index [11]   3M L+550
Basis Point Spread Above Index, Amount [11]   $ 550
Par / Shares   2,580,000
Cost   $ 2,500
Fair Value [9]   $ 2,309
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Pragmatic Institute, LLC | Education    
Schedule Of Investments [Line Items]    
Maturity   Jul. 06, 2028
Industry   Education
Current Coupon   9.30%
Basis Point Spread Above Index [11]   SOFR+575
Basis Point Spread Above Index, Amount [11]   $ 575
Par / Shares   11,250,000
Cost   $ 11,056
Fair Value [9]   $ 11,138
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Quantic Electronics, LLC | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity   Nov. 19, 2026
Industry   Aerospace and Defense
Current Coupon   8.41%
Basis Point Spread Above Index [11]   1M L+625
Basis Point Spread Above Index, Amount [11]   $ 625
Par / Shares   4,845,000
Cost   $ 4,755
Fair Value [9]   $ 4,729
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Quantic Electronics, LLC | Unfunded Term Loan | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity   Nov. 19, 2026
Industry   Aerospace and Defense
Basis Point Spread Above Index [11]   1M L+625
Basis Point Spread Above Index, Amount [11]   $ 625
Par / Shares   1,888,000
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Reception Purchaser, LLC | Air Freight and Logistics    
Schedule Of Investments [Line Items]    
Maturity   Feb. 28, 2028
Industry   Air Freight and Logistics
Current Coupon   9.13%
Basis Point Spread Above Index [11]   SOFR+600
Basis Point Spread Above Index, Amount [11]   $ 600
Par / Shares   4,975,000
Cost   $ 4,904
Fair Value [9]   $ 4,751
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Recteq, LLC | Leisure Products    
Schedule Of Investments [Line Items]    
Maturity   Jan. 29, 2026
Industry   Leisure Products
Current Coupon   9.92%
Basis Point Spread Above Index [11]   3M L+600
Basis Point Spread Above Index, Amount [11]   $ 600
Par / Shares   4,925,000
Cost   $ 4,856
Fair Value [9]   $ 4,753
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Research Now Group, Inc. and Dynata, LLC | Diversified Consumer Services    
Schedule Of Investments [Line Items]    
Maturity   Dec. 20, 2024
Industry   Diversified Consumer Services
Current Coupon   8.84%
Basis Point Spread Above Index [11]   3M L+550
Basis Point Spread Above Index, Amount [11]   $ 550
Par / Shares   12,564,000
Cost   $ 12,354
Fair Value [9]   $ 11,291
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Sales Benchmark Index LLC | Professional Services    
Schedule Of Investments [Line Items]    
Maturity   Jan. 03, 2025
Industry   Professional Services
Current Coupon   9.67%
Basis Point Spread Above Index   3M L+600
Basis Point Spread Above Index, Amount   $ 600
Par / Shares   5,013,000
Cost   $ 4,960
Fair Value [9]   $ 4,963
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Sargent & Greenleaf Inc. | Wholesale    
Schedule Of Investments [Line Items]    
Maturity   Dec. 20, 2024
Industry   Wholesale
Current Coupon   8.62%
Basis Point Spread Above Index   3M L+550
Basis Point Spread Above Index, Amount   $ 550
Par / Shares   5,240,000
Cost   $ 5,202
Fair Value [9]   $ 5,187
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Schlesinger Global, Inc. | Business Services    
Schedule Of Investments [Line Items]    
Maturity   Jul. 14, 2025
Industry   Business Services
Current Coupon   10.27%
Basis Point Spread Above Index [11]   SOFR+500
Basis Point Spread Above Index, Amount [11]   $ 500
Current Coupons, PIK 0.50% 0.50%
Par / Shares   11,847,000
Cost   $ 11,829
Fair Value [9]   $ 11,551
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Sigma Defense Systems, LLC | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity   Dec. 18, 2025
Industry   Aerospace and Defense
Current Coupon   12.17%
Basis Point Spread Above Index [11]   1M L+850
Basis Point Spread Above Index, Amount [11]   $ 850
Par / Shares   14,716,000
Cost   $ 14,411
Fair Value [9]   $ 14,421
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Smile Brands Inc. | Healthcare And Pharmaceuticals    
Schedule Of Investments [Line Items]    
Maturity   Oct. 14, 2025
Industry   Healthcare and Pharmaceuticals
Current Coupon   7.05%
Basis Point Spread Above Index [11]   3M L+450
Basis Point Spread Above Index, Amount [11]   $ 450
Par / Shares   11,917,000
Cost   $ 11,807
Fair Value [9]   $ 11,470
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Solutionreach, Inc. | Healthcare And Pharmaceuticals    
Schedule Of Investments [Line Items]    
Maturity   Jan. 17, 2024
Industry   Healthcare and Pharmaceuticals
Current Coupon   8.87%
Basis Point Spread Above Index [11]   1M L+575
Basis Point Spread Above Index, Amount [11]   $ 575
Par / Shares   5,647,000
Cost   $ 5,625
Fair Value [9]   $ 5,511
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Spendmend Holdings LLC | Healthcare Technology    
Schedule Of Investments [Line Items]    
Maturity   Mar. 01, 2028
Industry   Healthcare Technology
Current Coupon   8.63%
Basis Point Spread Above Index [11]   SOFR+575
Basis Point Spread Above Index, Amount [11]   $ 575
Par / Shares   2,956,000
Cost   $ 2,916
Fair Value [9]   $ 2,873
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | STV Group Incorporated | Construction and Building    
Schedule Of Investments [Line Items]    
Maturity   Dec. 11, 2026
Industry   Construction and Building
Current Coupon   8.37%
Basis Point Spread Above Index [11]   3M L+525
Basis Point Spread Above Index, Amount [11]   $ 525
Par / Shares   9,075,000
Cost   $ 9,011
Fair Value [9]   $ 8,985
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | System Planning and Analysis, Inc. (f/k/a Management Consulting & Research, LLC) | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity   Aug. 16, 2027
Industry   Aerospace and Defense
Current Coupon   8.73%
Basis Point Spread Above Index [11]   SOFR+600
Basis Point Spread Above Index, Amount [11]   $ 600
Par / Shares   14,888,000
Cost   $ 14,623
Fair Value [9]   $ 14,649
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | Teneo Holdings LLC | Business Services    
Schedule Of Investments [Line Items]    
Maturity Nov. 24, 2028 Jul. 18, 2025
Industry Healthcare and Pharmaceuticals Business Services
Current Coupon 9.95% 8.38%
Basis Point Spread Above Index 3M L+500 [10] 3M L+625 [11]
Basis Point Spread Above Index, Amount [11]   $ 625
Par / Shares   2,786,000
Cost   $ 2,757
Fair Value [9]   $ 2,623
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,280.8% | The Aegis Technologies Group, LLC | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity Oct. 31, 2025  
Industry Aerospace and Defense  
Current Coupon 10.70%  
Basis Point Spread Above Index [10] 3M L+600  
Basis Point Spread Above Index, Amount [10] $ 600  
Par / Shares 5,645  
Cost $ 5,590  
Fair Value [6] $ 5,589  
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Ad.net Acquisition, LLC | Media    
Schedule Of Investments [Line Items]    
Maturity   May 06, 2026
Industry   Media
Current Coupon   9.67%
Basis Point Spread Above Index [11]   3M L+600
Basis Point Spread Above Index, Amount [11]   $ 600
Par / Shares   8,888
Cost   $ 8,788
Fair Value [9]   $ 8,821
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Alpine Acquisition Corp II | Containers and Packaging    
Schedule Of Investments [Line Items]    
Maturity   Nov. 30, 2026
Industry   Containers and Packaging
Current Coupon   8.22%
Basis Point Spread Above Index [11]   SOFR+600
Basis Point Spread Above Index, Amount [11]   $ 600
Par / Shares   9,975
Cost   $ 9,790
Fair Value [9]   $ 9,576
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Altamira Technologies, LLC | Business Services    
Schedule Of Investments [Line Items]    
Maturity   Jul. 24, 2025
Industry   Business Services
Current Coupon   10.81%
Basis Point Spread Above Index [11]   3M L+800
Basis Point Spread Above Index, Amount [11]   $ 800
Par / Shares   5,225
Cost   $ 5,113
Fair Value [9]   $ 5,042
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | American Insulated Glass, LLC | Building Products    
Schedule Of Investments [Line Items]    
Maturity   Dec. 21, 2023
Industry   Building Products
Current Coupon   7.79%
Basis Point Spread Above Index [11]   3M L+550
Basis Point Spread Above Index, Amount [11]   $ 550
Par / Shares   4,883
Cost   $ 4,851
Fair Value [9]   $ 4,883
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Anteriad, LLC (f/k/a MeritDirect, LLC | Media: Advertising, Printing and Publishing    
Schedule Of Investments [Line Items]    
Maturity   May 23, 2024
Industry   Media: Advertising, Printing & Publishing
Current Coupon   9.67%
Basis Point Spread Above Index [11]   3M L+550
Basis Point Spread Above Index, Amount [11]   $ 550
Par / Shares   5,284
Cost   $ 5,208
Fair Value [9]   $ 5,284
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Any Hour Services | Professional Services    
Schedule Of Investments [Line Items]    
Maturity   Jul. 21, 2027
Industry   Professional Services
Current Coupon   8.33%
Basis Point Spread Above Index [11]   3M L+525
Basis Point Spread Above Index, Amount [11]   $ 525
Par / Shares   3,510
Cost   $ 3,441
Fair Value [9]   $ 3,440
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Apex Service Partners, LLC | Diversified Consumer Services    
Schedule Of Investments [Line Items]    
Maturity   Jul. 31, 2025
Industry   Diversified Consumer Services
Current Coupon   6.72%
Basis Point Spread Above Index [11]   1M L+525
Basis Point Spread Above Index, Amount [11]   $ 525
Par / Shares   1,010
Cost   $ 1,010
Fair Value [9]   $ 1,005
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Apex Service Partners, LLC | Term Loan B | Diversified Consumer Services    
Schedule Of Investments [Line Items]    
Maturity   Jul. 31, 2025
Industry   Diversified Consumer Services
Current Coupon   9.67%
Basis Point Spread Above Index [11]   3M L+625
Basis Point Spread Above Index, Amount [11]   $ 625
Par / Shares   2,202
Cost   $ 2,202
Fair Value [9]   $ 2,191
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Apex Service Partners, LLC | Term Loan C | Diversified Consumer Services    
Schedule Of Investments [Line Items]    
Maturity   Jul. 31, 2025
Industry   Diversified Consumer Services
Current Coupon   7.86%
Basis Point Spread Above Index [11]   3M L+525
Basis Point Spread Above Index, Amount [11]   $ 525
Par / Shares   11,115
Cost   $ 11,050
Fair Value [9]   $ 11,059
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Applied Technical Services, LLC | Commercial Services & Supplies    
Schedule Of Investments [Line Items]    
Maturity   Dec. 29, 2026
Industry   Commercial Services & Supplies
Current Coupon   8.76%
Basis Point Spread Above Index [11]   3M L+575
Basis Point Spread Above Index, Amount [11]   $ 575
Par / Shares   8,421
Cost   $ 8,317
Fair Value [9]   $ 8,211
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Arcfield Acquisition Corp. | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity   Mar. 07, 2028
Industry   Aerospace and Defense
Current Coupon   8.99%
Basis Point Spread Above Index [11]   SOFR + 575
Basis Point Spread Above Index, Amount [11]   $ 575
Par / Shares   4,677
Cost   $ 4,588
Fair Value [9]   $ 4,583
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Beta Plus Technologies, Inc. | Business Services    
Schedule Of Investments [Line Items]    
Maturity   Jul. 01, 2029
Industry   Business Services
Current Coupon   7.76%
Basis Point Spread Above Index [11]   SOFR + 525
Basis Point Spread Above Index, Amount [11]   $ 525
Par / Shares   5,000
Cost   $ 4,903
Fair Value [9]   $ 4,900
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Blackhawk Industrial Distribution, Inc. | Distributors    
Schedule Of Investments [Line Items]    
Maturity   Sep. 17, 2024
Industry   Distributors
Current Coupon   8.62%
Basis Point Spread Above Index [11]   SOFR + 500
Basis Point Spread Above Index, Amount [11]   $ 500
Par / Shares   15,293
Cost   $ 15,102
Fair Value [9]   $ 14,956
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Broder Bros., Co. | Consumer Products    
Schedule Of Investments [Line Items]    
Maturity   Dec. 02, 2022
Industry   Consumer Products
Current Coupon   7.39%
Basis Point Spread Above Index [11]   3M L+600
Basis Point Spread Above Index, Amount [11]   $ 600
Par / Shares   2,417
Cost   $ 2,417
Fair Value [9]   $ 2,417
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | By Light Professional IT Services, LLC | High Tech Industries    
Schedule Of Investments [Line Items]    
Maturity   May 16, 2024
Industry   High Tech Industries
Current Coupon   9.20%
Basis Point Spread Above Index [11]   1M L+662
Basis Point Spread Above Index, Amount [11]   $ 662
Par / Shares   14,822
Cost   $ 14,771
Fair Value [9]   $ 14,674
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Cadence Aerospace, LLC | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity   Nov. 14, 2023
Industry   Aerospace and Defense
Current Coupon   11.31%
Basis Point Spread Above Index [11]   3M L+325
Basis Point Spread Above Index, Amount [11]   $ 325
Current Coupons, PIK   11.31%
Par / Shares   12,412
Cost   $ 12,385
Fair Value [9]   $ 12,288
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Cartessa Aesthetics, LLC | Distributors    
Schedule Of Investments [Line Items]    
Maturity   May 13, 2028
Industry   Distributors
Current Coupon   9.55%
Basis Point Spread Above Index [11]   SOFR + 600
Basis Point Spread Above Index, Amount [11]   $ 600
Par / Shares   6,484,000
Cost   $ 6,359
Fair Value [9]   $ 6,386
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | CF512, Inc. | Media    
Schedule Of Investments [Line Items]    
Maturity   Aug. 20, 2026
Industry   Media
Current Coupon   9.08%
Basis Point Spread Above Index [11]   3M L+600
Basis Point Spread Above Index, Amount [11]   $ 600
Par / Shares   4,950,000
Cost   $ 4,866
Fair Value [9]   $ 4,876
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | CHA Holdings, Inc. | Construction & Engineering    
Schedule Of Investments [Line Items]    
Maturity   Apr. 10, 2025
Industry   Construction and Engineering
Current Coupon   8.17%
Basis Point Spread Above Index [11]   3M L+450
Basis Point Spread Above Index, Amount [11]   $ 450
Par / Shares   5,557,000
Cost   $ 5,487
Fair Value [9]   $ 5,557
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Challenger Performance Optimization, Inc. | Business Services    
Schedule Of Investments [Line Items]    
Maturity   Aug. 31, 2023
Industry   Business Services
Current Coupon   9.27%
Basis Point Spread Above Index [11]   1M L+575
Basis Point Spread Above Index, Amount [11]   $ 575
Current Coupons, PIK   1.00%
Par / Shares   9,271,000
Cost   $ 9,247
Fair Value [9]   $ 8,993
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Connatix Buyer, Inc. | Media    
Schedule Of Investments [Line Items]    
Maturity   Jul. 13, 2027
Industry   Media
Current Coupon   8.42%
Basis Point Spread Above Index [11]   3M L+550
Basis Point Spread Above Index, Amount [11]   $ 550
Par / Shares   3,907,000
Cost   $ 3,842
Fair Value [9]   $ 3,810
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Crane 1 Services, Inc. | Commercial Services & Supplies    
Schedule Of Investments [Line Items]    
Maturity   Aug. 16, 2027
Industry   Commercial Services & Supplies
Current Coupon   9.39%
Basis Point Spread Above Index [11]   3M L+575
Basis Point Spread Above Index, Amount [11]   $ 575
Par / Shares   2,110,000
Cost   $ 2,084
Fair Value [9]   $ 2,089
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Douglas Products and Packaging Company LLC | Chemicals, Plastics and Rubber    
Schedule Of Investments [Line Items]    
Maturity   Oct. 19, 2022
Industry   Chemicals, Plastics and Rubber
Current Coupon   8.87%
Basis Point Spread Above Index [11]   3M L+575
Basis Point Spread Above Index, Amount [11]   $ 575
Par / Shares   8,655,000
Cost   $ 8,653
Fair Value [9]   $ 8,655
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Douglas Sewer Intermediate, LLC | Chemicals, Plastics and Rubber    
Schedule Of Investments [Line Items]    
Maturity   Oct. 19, 2022
Industry   Chemicals, Plastics and Rubber
Current Coupon   8.87%
Basis Point Spread Above Index [11]   3M L+575
Basis Point Spread Above Index, Amount [11]   $ 575
Par / Shares   7,248,000
Cost   $ 7,246
Fair Value [9]   $ 7,248
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Dr. Squatch, LLC | Personal Products    
Schedule Of Investments [Line Items]    
Maturity   Aug. 31, 2027
Industry   Personal Products
Current Coupon   9.42%
Basis Point Spread Above Index [11]   3M L+575
Basis Point Spread Above Index, Amount [11]   $ 575
Par / Shares   14,862,000
Cost   $ 14,610
Fair Value [9]   $ 14,639
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | DRI Holding Inc. | Media    
Schedule Of Investments [Line Items]    
Maturity   Dec. 21, 2028
Industry   Media
Current Coupon   8.37%
Basis Point Spread Above Index [11]   1M L+525
Basis Point Spread Above Index, Amount [11]   $ 525
Par / Shares   1,832,000
Cost   $ 1,680
Fair Value [9]   $ 1,643
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | DRS Holdings III, Inc. | Consumer Goods: Durable    
Schedule Of Investments [Line Items]    
Maturity   Nov. 03, 2025
Industry   Consumer Goods: Durable
Current Coupon   8.87%
Basis Point Spread Above Index [11]   1M L+575
Basis Point Spread Above Index, Amount [11]   $ 575
Par / Shares   15,179,000
Cost   $ 15,103
Fair Value [9]   $ 14,693
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Duraco Specialty Tapes LLC | Containers and Packaging    
Schedule Of Investments [Line Items]    
Maturity   Jun. 30, 2024
Industry   Containers and Packaging
Current Coupon   8.62%
Basis Point Spread Above Index [11]   1M L+550
Basis Point Spread Above Index, Amount [11]   $ 550
Par / Shares   10,278,000
Cost   $ 10,151
Fair Value [9]   $ 10,031
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | ECL Entertainment, LLC | Hotels, Restaurants and Leisure    
Schedule Of Investments [Line Items]    
Maturity   May 01, 2028
Industry   Hotels, Restaurants and Leisure
Current Coupon   10.62%
Basis Point Spread Above Index [11]   3M L+750
Basis Point Spread Above Index, Amount [11]   $ 750
Par / Shares   2,621,000
Cost   $ 2,598
Fair Value [9]   $ 2,581
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | ECM Industries, LLC | Electronic Equipment, Instruments, and Components    
Schedule Of Investments [Line Items]    
Maturity   Dec. 23, 2025
Industry   Electronic Equipment, Instruments, and Components
Current Coupon   7.82%
Basis Point Spread Above Index [11]   3M L+475
Basis Point Spread Above Index, Amount [11]   $ 475
Par / Shares   4,974,000
Cost   $ 4,974
Fair Value [9]   $ 4,738
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Exigo Intermediate II, LLC | Software    
Schedule Of Investments [Line Items]    
Maturity   Mar. 15, 2027
Industry   Software
Current Coupon   8.87%
Basis Point Spread Above Index [11]   1M L+575
Basis Point Spread Above Index, Amount [11]   $ 575
Par / Shares   12,935,000
Cost   $ 12,759
Fair Value [9]   $ 12,644
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Fairbanks Morse Defense | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity   Jun. 17, 2028
Industry   Aerospace and Defense
Current Coupon   8.39%
Basis Point Spread Above Index [11]   3M L+475
Basis Point Spread Above Index, Amount [11]   $ 475
Par / Shares   10,300,000
Cost   $ 10,238
Fair Value [9]   $ 9,528
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Gantech Acquisition Corp. | IT Services    
Schedule Of Investments [Line Items]    
Maturity   May 14, 2026
Industry   IT Services
Current Coupon   9.37%
Basis Point Spread Above Index [11]   1M L+625
Basis Point Spread Above Index, Amount [11]   $ 625
Par / Shares   14,638,000
Cost   $ 14,427
Fair Value [9]   $ 14,199
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Global Holdings InterCo LLC | Diversified Financial Services    
Schedule Of Investments [Line Items]    
Maturity   Mar. 16, 2026
Industry   Diversified Financial Services
Current Coupon   8.74%
Basis Point Spread Above Index [11]   3M L+600
Basis Point Spread Above Index, Amount [11]   $ 600
Par / Shares   3,904,000
Cost   $ 3,888
Fair Value [9]   $ 3,728
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Graffiti Buyer, Inc. | Trading Companies & Distributors    
Schedule Of Investments [Line Items]    
Maturity   Aug. 10, 2027
Industry   Trading Companies & Distributors
Current Coupon   9.17%
Basis Point Spread Above Index [11]   3M L+550
Basis Point Spread Above Index, Amount [11]   $ 550
Par / Shares   2,369,000
Cost   $ 2,320
Fair Value [9]   $ 2,274
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Hancock Roofing and Construction L.L.C. | Insurance    
Schedule Of Investments [Line Items]    
Maturity   Dec. 31, 2026
Industry   Insurance
Current Coupon   8.67%
Basis Point Spread Above Index [11]   1M L+500
Basis Point Spread Above Index, Amount [11]   $ 500
Par / Shares   2,392,000
Cost   $ 2,347
Fair Value [9]   $ 2,356
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Holdco Sands Intermediate, LLC | Aerospace and Defense    
Schedule Of Investments [Line Items]    
Maturity   Nov. 23, 2028
Industry   Aerospace and Defense
Current Coupon   10.17%
Basis Point Spread Above Index [11]   3M L+600
Basis Point Spread Above Index, Amount [11]   $ 600
Par / Shares   4,963,000
Cost   $ 4,874
Fair Value [9]   $ 4,863
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | HW Holdco, LLC | Media    
Schedule Of Investments [Line Items]    
Maturity   Dec. 10, 2024
Industry   Media
Current Coupon   6.00%
Basis Point Spread Above Index [11]   6M L+575
Basis Point Spread Above Index, Amount [11]   $ 575
Par / Shares   3,052,000
Cost   $ 3,006
Fair Value [9]   $ 3,014
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Icon Partners III, LP | Automobiles    
Schedule Of Investments [Line Items]    
Maturity   May 11, 2028
Industry   Automobiles
Current Coupon   7.55%
Basis Point Spread Above Index [11]   3M L+450
Basis Point Spread Above Index, Amount [11]   $ 450
Par / Shares   2,327,000
Cost   $ 1,997
Fair Value [9]   $ 1,701
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | IDC Infusion Services, Inc. | Healthcare Equipment and Supplies    
Schedule Of Investments [Line Items]    
Maturity   Dec. 30, 2026
Industry   Healthcare Equipment and Supplies
Current Coupon   10.20%
Basis Point Spread Above Index [11]   SOFR+700
Basis Point Spread Above Index, Amount [11]   $ 700
Par / Shares   9,950,000
Cost   $ 9,833
Fair Value [9]   $ 9,502
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Imagine Acquisitionco, LLC | Software    
Schedule Of Investments [Line Items]    
Maturity   Nov. 15, 2027
Industry   Software
Current Coupon   8.42%
Basis Point Spread Above Index [11]   1M L+550
Basis Point Spread Above Index, Amount [11]   $ 550
Par / Shares   5,364,000
Cost   $ 5,261
Fair Value [9]   $ 5,230
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Inception Fertility Ventures, LLC | Healthcare Providers and Services    
Schedule Of Investments [Line Items]    
Maturity   Dec. 07, 2023
Industry   Healthcare Providers and Services
Current Coupon   8.55%
Basis Point Spread Above Index [11]   SOFR+700
Basis Point Spread Above Index, Amount [11]   $ 700
Par / Shares   16,620,000
Cost   $ 16,309
Fair Value [9]   $ 16,454
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Integrative Nutrition, LLC | Diversified Consumer Services    
Schedule Of Investments [Line Items]    
Maturity   Sep. 29, 2023
Industry   Diversified Consumer Services
Current Coupon   8.42%
Basis Point Spread Above Index [11]   3M L+475
Basis Point Spread Above Index, Amount [11]   $ 475
Par / Shares   11,187,000
Cost   $ 11,168
Fair Value [9]   $ 10,963
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Integrity Marketing Acquisition, LLC | Insurance    
Schedule Of Investments [Line Items]    
Maturity   Aug. 27, 2025
Industry   Insurance
Current Coupon   7.58%
Basis Point Spread Above Index [11]   1M L+550
Basis Point Spread Above Index, Amount [11]   $ 550
Par / Shares   5,966,000
Cost   $ 5,885
Fair Value [9]   $ 5,906
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | ITI Holdings, Inc. | IT Services    
Schedule Of Investments [Line Items]    
Maturity   Mar. 03, 2028
Industry   IT Services
Current Coupon   8.67%
Basis Point Spread Above Index [11]   SOFR + 550
Basis Point Spread Above Index, Amount [11]   $ 550
Par / Shares   3,980,000
Cost   $ 3,917
Fair Value [9]   $ 3,900
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | K2 Pure Solutions NoCal, L.P. | Chemicals, Plastics and Rubber    
Schedule Of Investments [Line Items]    
Maturity   Dec. 20, 2023
Industry   Chemicals, Plastics and Rubber
Current Coupon   11.12%
Basis Point Spread Above Index [11]   1M L+800
Basis Point Spread Above Index, Amount [11]   $ 800
Par / Shares   19,250,000
Cost   $ 19,103
Fair Value [9]   $ 19,250
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Kinetic Purchaser, LLC | Personal Products    
Schedule Of Investments [Line Items]    
Maturity   Nov. 10, 2027
Industry   Personal Products
Current Coupon   9.67%
Basis Point Spread Above Index [11]   3M L+600
Basis Point Spread Above Index, Amount [11]   $ 600
Par / Shares   16,830,000
Cost   $ 16,451
Fair Value [9]   $ 16,494
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Lash OpCo, LLC | Personal Products    
Schedule Of Investments [Line Items]    
Maturity   Feb. 18, 2027
Industry   Personal Products
Current Coupon   11.17%
Basis Point Spread Above Index [11]   3M L+700
Basis Point Spread Above Index, Amount [11]   $ 700
Par / Shares   14,355,000
Cost   $ 14,074
Fair Value [9]   $ 14,068
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | LAV Gear Holdings, Inc. | Capital Equipment    
Schedule Of Investments [Line Items]    
Maturity   Oct. 31, 2024
Industry   Capital Equipment
Current Coupon   9.70%
Basis Point Spread Above Index [11]   3M L+550
Basis Point Spread Above Index, Amount [11]   $ 550
Current Coupons, PIK   2.00%
Par / Shares   10,578,000
Cost   $ 10,539
Fair Value [9]   $ 10,335
PennantPark Senior Secured Loan Fund I LLC | First Lien Secured Debt - 1,330.4% | Lightspeed Buyer Inc. | Healthcare Providers and Services    
Schedule Of Investments [Line Items]    
Maturity   Feb. 03, 2026
Industry   Healthcare Providers and Services
Current Coupon   9.04%
Basis Point Spread Above Index [11]   3M L+575
Basis Point Spread Above Index, Amount [11]   $ 575
Par / Shares   10,598,000
Cost   $ 10,428
Fair Value [9]   $ 10,254
[1] 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.
[2] 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.
[3] The securities, or a portion thereof, are not 1) pledged as collateral under the Credit Facility and held through Funding I; or, 2) securing the 2031 Asset-Backed Debt (See Note 10) and held through PennantPark CLO I, Ltd.
[4] Valued based on our accounting policy (See Note 2). The value of all securities was determined using significant unobservable inputs (See Note 5).
[5] Represents floating rate instruments that accrue interest at a predetermined spread relative to an index, typically the applicable London Interbank Offered Rate, or LIBOR or “L”, Secured Overnight Financing Rate or "SOFR", or Prime rate, or “P.” The spread may change based on the type of rate used. The terms in the Schedule of Investments disclose the actual interest rate in effect as of the reporting period. LIBOR loans are typically indexed to a 30-day, 60-day, 90-day or 180-day LIBOR rate (1M L, 2M L, 3M L, or 6M L, respectively), at the borrower’s option. All securities are subject to a LIBOR or Prime rate floor where a spread is provided, unless noted. The spread provided includes payment-in-kind, or PIK, interest and other fee rates, if any.
[6] Valued based on PSSL’s accounting policy.
[7] 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.
[8] 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.
[9] Valued based on PSSL’s accounting policy.
[10] Represents floating rate instruments that accrue interest at a predetermined spread relative to an index, typically the applicable LIBOR or “L”, Secured Overnight Financing Rate or "SOFR", or Prime rate or “P”. The spread may change based on the type of rate used. The terms in the Schedule of Investments disclose the actual interest rate in effect as of the reporting period. LIBOR loans are typically indexed to a 30-day, 60-day, 90-day or 180-day LIBOR rate (1M L, 2M L, 3M L, or 6M L, respectively), at the borrower’s option. All securities are subject to a LIBOR or Prime rate floor where a spread is provided, unless noted. The spread provided includes PIK interest and other fee rates, if any.
[11] Represents floating rate instruments that accrue interest at a predetermined spread relative to an index, typically the applicable LIBOR or “L”, Secured Overnight Financing Rate or "SOFR", or Prime rate or “P”. The spread may change based on the type of rate used. The terms in the Schedule of Investments disclose the actual interest rate in effect as of the reporting period. LIBOR loans are typically indexed to a 30-day, 60-day, 90-day or 180-day LIBOR rate (1M L, 2M L, 3M L, or 6M L, respectively), at the borrower’s option. All securities are subject to a LIBOR or Prime rate floor where a spread is provided, unless noted. The spread provided includes PIK interest and other fee rates, if any.