3.25.1 html 3030 348 1 true 155 0 false 6 false false R1.htm 100000 - Document - Document and Entity Information Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 100010 - Statement - Consolidated Statements of Assets and Liabilities Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_StatementConsolidatedStatementsOfAssetsAndLiabilities Consolidated Statements of Assets and Liabilities Statements 2 false false R3.htm 100020 - Statement - Consolidated Statements of Assets and Liabilities (Parenthetical) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_StatementConsolidatedStatementsOfAssetsAndLiabilitiesParenthetical Consolidated Statements of Assets and Liabilities (Parenthetical) Statements 3 false false R4.htm 100030 - Statement - Consolidated Statements of Operations Sheet http://www.pennantpark.com/20250331/taxonomy/role/StatementConsolidatedStatementsOfOperations Consolidated Statements of Operations Statements 4 false false R5.htm 100040 - Statement - Consolidated Statements of Changes in Net Assets Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_StatementConsolidatedStatementsOfChangesInNetAssets Consolidated Statements of Changes in Net Assets Statements 5 false false R6.htm 100050 - Statement - Consolidated Statements of Cash Flows Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_StatementConsolidatedStatementsOfCashFlows Consolidated Statements of Cash Flows Statements 6 false false R7.htm 100060 - Statement - Consolidated Schedule of Investments Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_StatementConsolidatedScheduleOfInvestments Consolidated Schedule of Investments Statements 7 false false R8.htm 100070 - Statement - Consolidated Schedule of Investments (Parenthetical) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_StatementConsolidatedScheduleOfInvestmentsParenthetical Consolidated Schedule of Investments (Parenthetical) Statements 8 false false R9.htm 995410 - Disclosure - Pay vs Performance Disclosure Sheet http://xbrl.sec.gov/ecd/role/PvpDisclosure Pay vs Performance Disclosure Notes 9 false false R10.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 10 false false R11.htm 995470 - Disclosure - N-2 Sheet http://xbrl.sec.gov/cef/role/N2 N-2 Notes 11 false false R12.htm 995480 - Disclosure - Organization Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureOrganization Organization Notes 12 false false R13.htm 995490 - Disclosure - Significant Accounting Policies Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureSignificantAccountingPolicies Significant Accounting Policies Notes 13 false false R14.htm 995500 - Disclosure - Agreements and Related Party Transactions Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureAgreementsAndRelatedPartyTransactions Agreements and Related Party Transactions Notes 14 false false R15.htm 995510 - Disclosure - Investments Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureInvestments Investments Notes 15 false false R16.htm 995520 - Disclosure - Fair value of Financial Instruments Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureFairValueOfFinancialInstruments Fair value of Financial Instruments Notes 16 false false R17.htm 995530 - Disclosure - Transactions with Affiliated Companies Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureTransactionsWithAffiliatedCompanies Transactions with Affiliated Companies Notes 17 false false R18.htm 995540 - Disclosure - Change in Net Assets from Operations Per Common Share Sheet http://www.pennantpark.com/20250331/taxonomy/role/DisclosureChangeInNetAssetsFromOperationsPerCommonShare1 Change in Net Assets from Operations Per Common Share Notes 18 false false R19.htm 995550 - Disclosure - Cash and Cash Equivalents Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureCashAndCashEquivalents Cash and Cash Equivalents Notes 19 false false R20.htm 995560 - Disclosure - Financial Highlights Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureFinancialHighlights Financial Highlights Notes 20 false false R21.htm 995570 - Disclosure - Debt Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureDebt Debt Notes 21 false false R22.htm 995580 - Disclosure - Commitments and Contingencies Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureCommitmentsAndContingencies Commitments and Contingencies Notes 22 false false R23.htm 995610 - Disclosure - Significant Accounting Policies (Policies) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureSignificantAccountingPoliciesPolicies Significant Accounting Policies (Policies) Policies http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureSignificantAccountingPolicies 23 false false R24.htm 995620 - Disclosure - Investments (Tables) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureInvestmentsTables Investments (Tables) Tables http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureInvestments 24 false false R25.htm 995630 - Disclosure - Fair value of Financial Instruments (Tables) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureFairValueOfFinancialInstrumentsTables Fair value of Financial Instruments (Tables) Tables http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureFairValueOfFinancialInstruments 25 false false R26.htm 995640 - Disclosure - Transactions with Affiliated Companies (Tables) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureTransactionsWithAffiliatedCompaniesTables Transactions with Affiliated Companies (Tables) Tables http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureTransactionsWithAffiliatedCompanies 26 false false R27.htm 995650 - Disclosure - Change in Net Assets From Operations Per Common Share (Tables) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureChangeInNetAssetsFromOperationsPerCommonShareTables Change in Net Assets From Operations Per Common Share (Tables) Tables 27 false false R28.htm 995660 - Disclosure - Financial Highlights (Tables) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureFinancialHighlightsTables Financial Highlights (Tables) Tables http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureFinancialHighlights 28 false false R29.htm 995670 - Disclosure - Organization - Additional Information (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureOrganizationAdditionalInformationDetails Organization - Additional Information (Details) Details 29 false false R30.htm 995680 - Disclosure - Significant Accounting Policies - Additional Information (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureSignificantAccountingPoliciesAdditionalInformationDetails Significant Accounting Policies - Additional Information (Details) Details 30 false false R31.htm 995690 - Disclosure - Agreements and Related Party Transactions - Additional Information (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureAgreementsAndRelatedPartyTransactionsAdditionalInformationDetails Agreements and Related Party Transactions - Additional Information (Details) Details 31 false false R32.htm 995700 - Disclosure - Investments - Additional Information (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureInvestmentsAdditionalInformationDetails Investments - Additional Information (Details) Details 32 false false R33.htm 995710 - Disclosure - Investments - Schedule of Investments and Cash and Cash Equivalents (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureInvestmentsScheduleOfInvestmentsAndCashAndCashEquivalentsDetails Investments - Schedule of Investments and Cash and Cash Equivalents (Details) Details 33 false false R34.htm 995720 - Disclosure - Investments - Schedule of Investments by Industry Classification and Enumerates Percentage, by Fair Value, of Total Portfolio Assets Excluding Cash and Cash Equivalents (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureInvestmentsScheduleOfInvestmentsByIndustryClassificationAndEnumeratesPercentageByFairValueOfTotalPortfolioAssetsExcludingCashAndCashEquivalentsDetails Investments - Schedule of Investments by Industry Classification and Enumerates Percentage, by Fair Value, of Total Portfolio Assets Excluding Cash and Cash Equivalents (Details) Details 34 false false R35.htm 995730 - Disclosure - Investments - Summary of PSSLs Portfolio at Fair Value (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/DisclosureInvestmentsSummaryOfPsslsPortfolioAtFairValueDetails Investments - Summary of PSSLs Portfolio at Fair Value (Details) Details 35 false false R36.htm 995740 - Disclosure - Investments - Summary of Listing of PSSLs Individual Investments (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/DisclosureInvestmentsSummaryOfListingOfPsslsIndividualInvestmentsDetails Investments - Summary of Listing of PSSLs Individual Investments (Details) Details 36 false false R37.htm 995750 - Disclosure - Investments - Summary of Listing of PSSLs Individual Investments (Parenthetical) (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/DisclosureInvestmentsSummaryOfListingOfPsslsIndividualInvestmentsParentheticalDetails Investments - Summary of Listing of PSSLs Individual Investments (Parenthetical) (Details) Details 37 false false R38.htm 995760 - Disclosure - Investments - Consolidated Statements of Assets and Liabilities for PSSL (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureInvestmentsConsolidatedStatementsOfAssetsAndLiabilitiesForPSSLDetails Investments - Consolidated Statements of Assets and Liabilities for PSSL (Details) Details 38 false false R39.htm 995770 - Disclosure - Investments - Consolidated Statements of Assets and Liabilities for PSSL (Parenthetical) (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureInvestmentsConsolidatedStatementsOfAssetsAndLiabilitiesForPSSLParentheticalDetails Investments - Consolidated Statements of Assets and Liabilities for PSSL (Parenthetical) (Details) Details 39 false false R40.htm 995780 - Disclosure - Investments - Consolidated Statements of Operations for PSSL (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureInvestmentsConsolidatedStatementsOfOperationsForPSSLDetails Investments - Consolidated Statements of Operations for PSSL (Details) Details 40 false false R41.htm 995790 - Disclosure - Fair Value of Financial Instruments - Summary of Unobservable Inputs and Ranges (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureFairValueOfFinancialInstrumentsSummaryOfUnobservableInputsAndRangesDetails Fair Value of Financial Instruments - Summary of Unobservable Inputs and Ranges (Details) Details 41 false false R42.htm 995800 - Disclosure - Fair Value of Financial Instruments - Summary of Investments, Cash and Cash Equivalents, Credit Facility, or Prior Credit Facility, Notes and Asset Backed Debt (Details) Notes http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureFairValueOfFinancialInstrumentsSummaryOfInvestmentsCashAndCashEquivalentsCreditFacilityOrPriorCreditFacilityNotesAndAssetBackedDebtDetails Fair Value of Financial Instruments - Summary of Investments, Cash and Cash Equivalents, Credit Facility, or Prior Credit Facility, Notes and Asset Backed Debt (Details) Details 42 false false R43.htm 995810 - Disclosure - Fair Value of Financial Instruments - Reconciliation of Investments Measured at Fair Value Using Significant Unobservable Inputs Level 3 (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureFairValueOfFinancialInstrumentsReconciliationOfInvestmentsMeasuredAtFairValueUsingSignificantUnobservableInputsLevel3Details Fair Value of Financial Instruments - Reconciliation of Investments Measured at Fair Value Using Significant Unobservable Inputs Level 3 (Details) Details 43 false false R44.htm 995820 - Disclosure - Fair Value of Financial Instruments - Reconciliation of Liabilities Measured at Fair Value Using Significant Unobservable Inputs Level 3 (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureFairValueOfFinancialInstrumentsReconciliationOfLiabilitiesMeasuredAtFairValueUsingSignificantUnobservableInputsLevel3Details Fair Value of Financial Instruments - Reconciliation of Liabilities Measured at Fair Value Using Significant Unobservable Inputs Level 3 (Details) Details 44 false false R45.htm 995830 - Disclosure - Fair Value of Financial Instruments - Reconciliation of Liabilities Measured at Fair Value Using Significant Unobservable Inputs Level 3 (Parenthetical) (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureFairValueOfFinancialInstrumentsReconciliationOfLiabilitiesMeasuredAtFairValueUsingSignificantUnobservableInputsLevel3ParentheticalDetails Fair Value of Financial Instruments - Reconciliation of Liabilities Measured at Fair Value Using Significant Unobservable Inputs Level 3 (Parenthetical) (Details) Details 45 false false R46.htm 995840 - Disclosure - Fair Value of Financial Instruments - Summary of Outstanding Non US Dollar on Credit Facility (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfOutstandingNonUsDollarOnCreditFacilityDetails Fair Value of Financial Instruments - Summary of Outstanding Non US Dollar on Credit Facility (Details) Details 46 false false R47.htm 995850 - Disclosure - Fair Value of Financial Instruments - Additional Information (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails Fair Value of Financial Instruments - Additional Information (Details) Details 47 false false R48.htm 995860 - Disclosure - Fair value of Financial Instruments - Net change in fair value from currency (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsNetChangeInFairValueFromCurrencyDetails Fair value of Financial Instruments - Net change in fair value from currency (Details) Details 48 false false R49.htm 995870 - Disclosure - Transactions with Affiliated Companies - Additional Information (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureTransactionsWithAffiliatedCompaniesAdditionalInformationDetails Transactions with Affiliated Companies - Additional Information (Details) Details 49 false false R50.htm 995880 - Disclosure - Transactions with Affiliated Companies - Summary of Transactions with Affiliated Companies (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureTransactionsWithAffiliatedCompaniesSummaryOfTransactionsWithAffiliatedCompaniesDetails Transactions with Affiliated Companies - Summary of Transactions with Affiliated Companies (Details) Details 50 false false R51.htm 995890 - Disclosure - Change in Net Assets from Operations Per Common Share - Summary of Information Sets Forth for Computation of Basic and Diluted Per Share Net Increase in Net Assets Resulting from Operations (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureChangeInNetAssetsFromOperationsPerCommonShareSummaryOfInformationSetsForthForComputationOfBasicAndDilutedPerShareNetIncreaseInNetAssetsResultingFromOperationsDetails Change in Net Assets from Operations Per Common Share - Summary of Information Sets Forth for Computation of Basic and Diluted Per Share Net Increase in Net Assets Resulting from Operations (Details) Details 51 false false R52.htm 995900 - Disclosure - Cash and Cash Equivalents - Additional Information (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureCashAndCashEquivalentsAdditionalInformationDetails Cash and Cash Equivalents - Additional Information (Details) Details 52 false false R53.htm 995910 - Disclosure - Financial Highlights - Summary of Financial Highlights (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureFinancialHighlightsSummaryOfFinancialHighlightsDetails Financial Highlights - Summary of Financial Highlights (Details) Details 53 false false R54.htm 995920 - Disclosure - Financial Highlights - Summary of Financial Highlights (Details) (Parenthetical) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureFinancialHighlightsSummaryOfFinancialHighlightsDetailsParenthetical Financial Highlights - Summary of Financial Highlights (Details) (Parenthetical) Details 54 false false R55.htm 995930 - Disclosure - Debt - Additional Information (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureDebtAdditionalInformationDetails Debt - Additional Information (Details) Details 55 false false R56.htm 995940 - Disclosure - Commitments and Contingencies - Additional Information (Details) Sheet http://www.pennantpark.com/20250331/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetails Commitments and Contingencies - Additional Information (Details) Details 56 false false All Reports Book All Reports pflt-20250331.htm pflt-20250331.xsd http://fasb.org/srt/2024 http://fasb.org/us-gaap/2024 http://xbrl.sec.gov/cef/2024 http://xbrl.sec.gov/dei/2024 http://xbrl.sec.gov/ecd/2024 false false