3.26.1 html 1452 303 1 true 224 0 false 4 false false R1.htm 75000 - Document - Cover Page Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/CoverPage Cover Page Cover 1 false false R2.htm 75010 - Statement - Consolidated Statements of Assets and Liabilities Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/ConsolidatedStatementsOfAssetsAndLiabilities Consolidated Statements of Assets and Liabilities Statements 2 false false R3.htm 75020 - Statement - Consolidated Statements of Assets and Liabilities (Parenthetical) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/ConsolidatedStatementsOfAssetsAndLiabilitiesParenthetical Consolidated Statements of Assets and Liabilities (Parenthetical) Statements 3 false false R4.htm 75030 - Statement - Consolidated Statements of Operations Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/ConsolidatedStatementsOfOperations Consolidated Statements of Operations Statements 4 false false R5.htm 75040 - Statement - Consolidated Statements of Changes in Net Assets Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/ConsolidatedStatementsOfChangesInNetAssets Consolidated Statements of Changes in Net Assets Statements 5 false false R6.htm 75050 - Statement - Consolidated Statements of Cash Flows Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/ConsolidatedStatementsOfCashFlows Consolidated Statements of Cash Flows Statements 6 false false R7.htm 75060 - Statement - Consolidated Schedule of Investments Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/ConsolidatedScheduleOfInvestments Consolidated Schedule of Investments Statements 7 false false R8.htm 75070 - Statement - Consolidated Schedule of Investments (Parenthetical) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/ConsolidatedScheduleOfInvestmentsParenthetical Consolidated Schedule of Investments (Parenthetical) Statements 8 false false R9.htm 75080 - Statement - Consolidated Schedule of Investments (Parenthetical) 1 Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/ConsolidatedScheduleOfInvestmentsParenthetical1 Consolidated Schedule of Investments (Parenthetical) 1 Statements 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 995467 - Disclosure - Organization Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureOrganization Organization Notes 11 false false R12.htm 995477 - Disclosure - Summary of Significant Accounting Policies Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/SummaryOfSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 12 false false R13.htm 995487 - Disclosure - Related Party Transactions Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/RelatedPartyTransactions Related Party Transactions Notes 13 false false R14.htm 995497 - Disclosure - Borrowings Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/Borrowings Borrowings Notes 14 false false R15.htm 995507 - Disclosure - Fair Value Measurement Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/FairValueMeasurement Fair Value Measurement Notes 15 false false R16.htm 995517 - Disclosure - Commitments and Contingencies Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/CommitmentsAndContingencies Commitments and Contingencies Notes 16 false false R17.htm 995527 - Disclosure - Net Assets Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/NetAssets Net Assets Notes 17 false false R18.htm 995537 - Disclosure - Earnings Per Share Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureEarningsPerShare Earnings Per Share Notes 18 false false R19.htm 995557 - Disclosure - Initial Portfolio Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/InitialPortfolio Initial Portfolio Notes 19 false false R20.htm 995567 - Disclosure - Financial Highlights Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureFinancialHighlights1 Financial Highlights Notes 20 false false R21.htm 995577 - Disclosure - Subsequent Events Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/SubsequentEvents Subsequent Events Notes 21 false false R22.htm 995587 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/SummaryOfSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://abprivatelendingfund.com/20260630/taxonomy/role/SummaryOfSignificantAccountingPolicies 22 false false R23.htm 995597 - Disclosure - Related Party Transactions (Tables) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureRelatedPartyTransactionsTables Related Party Transactions (Tables) Tables http://abprivatelendingfund.com/20260630/taxonomy/role/RelatedPartyTransactions 23 false false R24.htm 995607 - Disclosure - Borrowings (Tables) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureBorrowingsTables Borrowings (Tables) Tables http://abprivatelendingfund.com/20260630/taxonomy/role/Borrowings 24 false false R25.htm 995617 - Disclosure - Fair Value Measurement (Tables) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/FairValueMeasurementTables Fair Value Measurement (Tables) Tables http://abprivatelendingfund.com/20260630/taxonomy/role/FairValueMeasurement 25 false false R26.htm 995627 - Disclosure - Commitments and Contingencies (Tables) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/CommitmentsAndContingenciesTables Commitments and Contingencies (Tables) Tables http://abprivatelendingfund.com/20260630/taxonomy/role/CommitmentsAndContingencies 26 false false R27.htm 995637 - Disclosure - Net Assets (Tables) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureNetAssetsTables Net Assets (Tables) Tables http://abprivatelendingfund.com/20260630/taxonomy/role/NetAssets 27 false false R28.htm 995647 - Disclosure - Earnings Per Share (Tables) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureEarningsPerShareTables Earnings Per Share (Tables) Tables http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureEarningsPerShare 28 false false R29.htm 995667 - Disclosure - Financial Highlights (Tables) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureFinancialHighlightsTables Financial Highlights (Tables) Tables http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureFinancialHighlights1 29 false false R30.htm 995677 - Disclosure - Organization - Additional Information (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureOrganizationAdditionalInformationDetail Organization - Additional Information (Detail) Details 30 false false R31.htm 995687 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetail Summary of Significant Accounting Policies - Additional Information (Detail) Details 31 false false R32.htm 995697 - Disclosure - Related Party Transactions - Summary of Non Reimbursable Expense Payments (Details) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureRelatedPartyTransactionsSummaryOfNonReimbursableExpensePaymentsDetails Related Party Transactions - Summary of Non Reimbursable Expense Payments (Details) Details 32 false false R33.htm 995707 - Disclosure - Related Party Transactions - Additional Information (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/RelatedPartyTransactionsAdditionalInformationDetail Related Party Transactions - Additional Information (Detail) Details 33 false false R34.htm 995717 - Disclosure - Borrowings - Additional Information (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/BorrowingsAdditionalInformationDetail Borrowings - Additional Information (Detail) Details 34 false false R35.htm 995727 - Disclosure - Borrowings - Summary of the Fund's Outstanding Borrowings Through the Revolving Credit Facilities (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/BorrowingsSummaryOfTheFundsOutstandingBorrowingsThroughTheRevolvingCreditFacilitiesDetail Borrowings - Summary of the Fund's Outstanding Borrowings Through the Revolving Credit Facilities (Detail) Details 35 false false R36.htm 995737 - Disclosure - Borrowings - Summary of Components of Interest and Other Debt Expenses Related to the Borrowings were as Follows (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/BorrowingsSummaryOfComponentsOfInterestAndOtherDebtExpensesRelatedToTheBorrowingsWereAsFollowsDetail Borrowings - Summary of Components of Interest and Other Debt Expenses Related to the Borrowings were as Follows (Detail) Details 36 false false R37.htm 995747 - Disclosure - Fair Value Measurement - Summary of Valuation of the Fund's Investments (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/FairValueMeasurementSummaryOfValuationOfTheFundsInvestmentsDetail Fair Value Measurement - Summary of Valuation of the Fund's Investments (Detail) Details 37 false false R38.htm 995757 - Disclosure - Fair Value Measurement - Summary of Reconciliation of Level 3 Assets (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/FairValueMeasurementSummaryOfReconciliationOfLevel3AssetsDetail Fair Value Measurement - Summary of Reconciliation of Level 3 Assets (Detail) Details 38 false false R39.htm 995767 - Disclosure - Fair Value Measurement - Summarize the Fair Value Measurement Inputs and Valuation Techniques (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/FairValueMeasurementSummarizeTheFairValueMeasurementInputsAndValuationTechniquesDetail Fair Value Measurement - Summarize the Fair Value Measurement Inputs and Valuation Techniques (Detail) Details 39 false false R40.htm 995777 - Disclosure - Commitments and Contingencies - Additional Information (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail Commitments and Contingencies - Additional Information (Detail) Details 40 false false R41.htm 995787 - Disclosure - Commitments and Contingencies - Summary of Unfunded Commitments by Investment Types (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/CommitmentsAndContingenciesSummaryOfUnfundedCommitmentsByInvestmentTypesDetail Commitments and Contingencies - Summary of Unfunded Commitments by Investment Types (Detail) Details 41 false false R42.htm 995797 - Disclosure - Net Assets - Summary of Total Shares Issued and Proceeds Related to the Offering (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureNetAssetsSummaryOfTotalSharesIssuedAndProceedsRelatedToTheOfferingDetail Net Assets - Summary of Total Shares Issued and Proceeds Related to the Offering (Detail) Details 42 false false R43.htm 995807 - Disclosure - Net Assets - Summary of Distributions Declared for the Fund's Class I shares (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureNetAssetsSummaryOfDistributionsDeclaredForTheFundsClassISharesDetail Net Assets - Summary of Distributions Declared for the Fund's Class I shares (Detail) Details 43 false false R44.htm 995817 - Disclosure - Net Assets - Summary of Total Shares Reinvested for the Fund's Class I shares (Details) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureNetAssetsSummaryOfTotalSharesReinvestedForTheFundsClassISharesDetails Net Assets - Summary of Total Shares Reinvested for the Fund's Class I shares (Details) Details 44 false false R45.htm 995827 - Disclosure - Net Assets - Additional Information (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/NetAssetsAdditionalInformationDetail Net Assets - Additional Information (Detail) Details 45 false false R46.htm 995837 - Disclosure - Net Assets - Summary of Share Repurchase (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureNetAssetsSummaryOfShareRepurchaseDetail Net Assets - Summary of Share Repurchase (Detail) Details 46 false false R47.htm 995847 - Disclosure - Earnings Per Share - Schedule of Information for the Computation of Basic and Diluted Earnings Per Share (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureEarningsPerShareScheduleOfInformationForTheComputationOfBasicAndDilutedEarningsPerShareDetail Earnings Per Share - Schedule of Information for the Computation of Basic and Diluted Earnings Per Share (Detail) Details 47 false false R48.htm 995857 - Disclosure - Tax Information - Summary of Tax Character of Distributions (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureTaxInformationSummaryOfTaxCharacterOfDistributionsDetail Tax Information - Summary of Tax Character of Distributions (Detail) Details 48 false false R49.htm 995877 - Disclosure - Tax Information - Summary of Impact on the NAV of the Fund (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureTaxInformationSummaryOfImpactOnTheNavOfTheFundDetail Tax Information - Summary of Impact on the NAV of the Fund (Detail) Details 49 false false R50.htm 995887 - Disclosure - Initial Portfolio - Additional Information (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/InitialPortfolioAdditionalInformationDetail Initial Portfolio - Additional Information (Detail) Details 50 false false R51.htm 995897 - Disclosure - Financial Highlights - Summary of Financial Highlights of the Fund (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/DisclosureFinancialHighlightsSummaryOfFinancialHighlightsOfTheFundDetail Financial Highlights - Summary of Financial Highlights of the Fund (Detail) Details 51 false false R52.htm 995907 - Disclosure - Subsequent Events - Additional Information (Detail) Sheet http://abprivatelendingfund.com/20260630/taxonomy/role/SubsequentEventsAdditionalInformationDetail Subsequent Events - Additional Information (Detail) Details 52 false false All Reports Book All Reports ck0001982701-20260630.htm ck0001982701-20260630.xsd http://fasb.org/srt/2026 http://fasb.org/us-gaap/2026 http://xbrl.sec.gov/dei/2026 http://xbrl.sec.gov/ecd/2026 false false