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Related Party Transactions and Arrangements (Detail) (USD $)
 0 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended 2 Months Ended 12 Months Ended 0 Months Ended 3 Months Ended
Feb. 28, 2013
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Feb. 28, 2013
Dec. 31, 2012
Feb. 28, 2014
Jan. 03, 2014
Jan. 08, 2014
Oct. 04, 2013
Mar. 31, 2013
Related Party Transaction [Line Items]                          
Excess annualized core earnings, percentage   20.00%arcp_ExcessAnnualizedCoreEarningsPercentage   20.00%arcp_ExcessAnnualizedCoreEarningsPercentage                  
ARCP OP Units Issued to Special Limited Partnership   56,797arcp_ArcpOpUnitsIssuedToSpecialLimitedPartnership   56,797arcp_ArcpOpUnitsIssuedToSpecialLimitedPartnership                  
Investment securities, at fair value   $ 219,204,000us-gaap_AvailableForSaleSecurities [1] $ 78,002,000us-gaap_AvailableForSaleSecurities $ 219,204,000us-gaap_AvailableForSaleSecurities [1] $ 78,002,000us-gaap_AvailableForSaleSecurities $ 62,067,000us-gaap_AvailableForSaleSecurities [1]              
Carrying amount of investment   3,917,000us-gaap_EquityMethodInvestments   3,917,000us-gaap_EquityMethodInvestments                  
Due from affiliates   73,686,000us-gaap_DueFromAffiliates [1]   73,686,000us-gaap_DueFromAffiliates [1]   0us-gaap_DueFromAffiliates [1]              
Available borrowings under the revolving line of credit   60,000,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity   60,000,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity                  
Sale of ARCT III OP Units [Member]                          
Related Party Transaction [Line Items]                          
Related Party Transaction, Proceeds from Related Party 98,400,000arcp_RelatedPartyTransactionProceedsFromRelatedParty
/ us-gaap_SubsidiarySaleOfStockAxis
= arcp_SaleOfArctIiiOpUnitsMember		                        
Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements   43,809,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		 53,221,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		 267,471,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		 328,054,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                
Special Limited Partner [Member]                          
Related Party Transaction [Line Items]                          
Value of ARCP OP Units Issued to Special Limited Partnership   800,000arcp_EquityMethodInvestmentsInRelatedParties
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_SpecialLimitedPartnerMember		   800,000arcp_EquityMethodInvestmentsInRelatedParties
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_SpecialLimitedPartnerMember		                  
American Real Estate Income Fund [Member]                          
Related Party Transaction [Line Items]                          
Investment securities, at fair value   1,700,000us-gaap_AvailableForSaleSecurities
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_AmericanRealEstateIncomeFundMember		   1,700,000us-gaap_AvailableForSaleSecurities
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_AmericanRealEstateIncomeFundMember		   1,600,000us-gaap_AvailableForSaleSecurities
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_AmericanRealEstateIncomeFundMember		              
Dealer Manager Fee [Member]                          
Related Party Transaction [Line Items]                          
Revenue from related party, percentage of gross offering proceeds   2.00%arcp_RevenuefromRelatedPartyPercentageOfGrossOfferingProceeds
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_DealerManagerFeeMember		   2.00%arcp_RevenuefromRelatedPartyPercentageOfGrossOfferingProceeds
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_DealerManagerFeeMember		                  
Former Manager and Affiliates of Former Manager [Member]                          
Related Party Transaction [Line Items]                          
Consideration recovered           8,500,000us-gaap_RecoveryOfDirectCosts
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_FormerManagerandAffiliatesofFormerManagerMember		              
American Realty Capital Advisors III LLC [Member] | Advisor [Member] | Class B Units [Member]                          
Related Party Transaction [Line Items]                          
Antidilutive securities excluded from computation of earnings per share 748,621us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= arcp_ClassBUnitsMember
/ dei_LegalEntityAxis
= arcp_AmericanRealtyCapitalAdvisorsIiiLlcMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_AdvisorMember		           603,599us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= arcp_ClassBUnitsMember
/ dei_LegalEntityAxis
= arcp_AmericanRealtyCapitalAdvisorsIiiLlcMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_AdvisorMember		 145,022us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= arcp_ClassBUnitsMember
/ dei_LegalEntityAxis
= arcp_AmericanRealtyCapitalAdvisorsIiiLlcMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_AdvisorMember		          
ARCT III Merger [Member]                          
Related Party Transaction [Line Items]                          
Asset Management Fee Percentage, Option 2                 0.40%arcp_FeesToManagerBasedOnAverageGreaterThanUnadjustedBookValueOfCompanysAssets
/ us-gaap_BusinessAcquisitionAxis
= arcp_ArctiiiMergerMember		        
ARCT III Merger [Member] | Former Manager [Member]                          
Related Party Transaction [Line Items]                          
Management fee waived     2,000,000arcp_ManagementFeesWaived
/ us-gaap_BusinessAcquisitionAxis
= arcp_ArctiiiMergerMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_FormerManagerMember		   2,400,000arcp_ManagementFeesWaived
/ us-gaap_BusinessAcquisitionAxis
= arcp_ArctiiiMergerMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_FormerManagerMember		                
ARCT III Merger [Member] | ARCP [Member]                          
Related Party Transaction [Line Items]                          
Asset Management Fee Percentage, Option 1                 0.50%arcp_FeesToManagerBasedOnAverageLessThanUnadjustedBookValueOfCompanysAssets
/ us-gaap_BusinessAcquisitionAxis
= arcp_ArctiiiMergerMember
/ dei_LegalEntityAxis
= arcp_ArcpMember		        
ARCT IV / ARCP Merger [Member] | Special Limited Partner [Member] | ARCP IV [Member]                          
Related Party Transaction [Line Items]                          
Business acquisition, equity interest issued or issuable, number of shares                   2,800,000us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
/ us-gaap_BusinessAcquisitionAxis
= arcp_ARCTIVARCPMergerMember
/ dei_LegalEntityAxis
= arcp_ARCPIVMember
/ us-gaap_PartnerTypeOfPartnersCapitalAccountAxis
= arcp_SpecialLimitedPartnerMember		      
Maximum [Member] | ARCT III Merger [Member] | ARCP [Member]                          
Related Party Transaction [Line Items]                          
Unadjusted book value of assets                 3,000,000,000arcp_UnadjustedBookValueOfAssets
/ us-gaap_BusinessAcquisitionAxis
= arcp_ArctiiiMergerMember
/ dei_LegalEntityAxis
= arcp_ArcpMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		        
Operating Partnership Unit [Member] | ARC Real Estate Partners, LLC [Member]                          
Related Party Transaction [Line Items]                          
Common stock held by related party, percent   2.77%arcp_CommonStockSharesHeldByRelatedPartyAsPercentageOfCommonStockOutstanding
/ dei_LegalEntityAxis
= arcp_ArcRealEstatePartnersLlcMember
/ us-gaap_StatementClassOfStockAxis
= arcp_OperatingPartnershipUnitMember		   2.77%arcp_CommonStockSharesHeldByRelatedPartyAsPercentageOfCommonStockOutstanding
/ dei_LegalEntityAxis
= arcp_ArcRealEstatePartnersLlcMember
/ us-gaap_StatementClassOfStockAxis
= arcp_OperatingPartnershipUnitMember		   4.37%arcp_CommonStockSharesHeldByRelatedPartyAsPercentageOfCommonStockOutstanding
/ dei_LegalEntityAxis
= arcp_ArcRealEstatePartnersLlcMember
/ us-gaap_StatementClassOfStockAxis
= arcp_OperatingPartnershipUnitMember		              
Common Stock [Member] | ARCP Merger [Member] | American Realty Capital III Special Limited Partnership, LLC [Member] | Entity Wholly Owned By Sponsor [Member] | Pre-Conversion [Member] | Sale of ARCT III OP Units [Member]                          
Related Party Transaction [Line Items]                          
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest, Issuance of Units 7,600,000arcp_LimitedLiabilityCompanyLlcOrLimitedPartnershipLpMembersOrLimitedPartnersOwnershipInterestIssuanceOfUnits
/ us-gaap_BusinessAcquisitionAxis
= arcp_ArcpMergerMember
/ dei_LegalEntityAxis
= arcp_AmericanRealtyCapitalIiiSpecialLimitedPartnershipLlcMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_EntityWhollyOwnedBySponsorMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonStockMember
/ arcp_StatusAxis
= arcp_PreConversionMember
/ us-gaap_SubsidiarySaleOfStockAxis
= arcp_SaleOfArctIiiOpUnitsMember		                        
Common Stock [Member] | ARCP Merger [Member] | American Realty Capital III Special Limited Partnership, LLC [Member] | Entity Wholly Owned By Sponsor [Member] | Post-Conversion [Member] | Sale of ARCT III OP Units [Member]                          
Related Party Transaction [Line Items]                          
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest, Issuance of Units 7,300,000arcp_LimitedLiabilityCompanyLlcOrLimitedPartnershipLpMembersOrLimitedPartnersOwnershipInterestIssuanceOfUnits
/ us-gaap_BusinessAcquisitionAxis
= arcp_ArcpMergerMember
/ dei_LegalEntityAxis
= arcp_AmericanRealtyCapitalIiiSpecialLimitedPartnershipLlcMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_EntityWhollyOwnedBySponsorMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonStockMember
/ arcp_StatusAxis
= arcp_PostConversionMember
/ us-gaap_SubsidiarySaleOfStockAxis
= arcp_SaleOfArctIiiOpUnitsMember		                        
Common Stock [Member] | ARCP Merger [Member] | American Realty Capital III Special Limited Partnership, LLC [Member] | Entity Wholly Owned By Sponsor [Member] | Post-Conversion [Member] | Class B Units [Member]                          
Related Party Transaction [Line Items]                          
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest, Issuance of Units 711,190arcp_LimitedLiabilityCompanyLlcOrLimitedPartnershipLpMembersOrLimitedPartnersOwnershipInterestIssuanceOfUnits
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= arcp_ClassBUnitsMember
/ us-gaap_BusinessAcquisitionAxis
= arcp_ArcpMergerMember
/ dei_LegalEntityAxis
= arcp_AmericanRealtyCapitalIiiSpecialLimitedPartnershipLlcMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_EntityWhollyOwnedBySponsorMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonStockMember
/ arcp_StatusAxis
= arcp_PostConversionMember		                        
Op Units [Member] | ARCT IV / ARCP Merger [Member]                          
Related Party Transaction [Line Items]                          
Units Minimum Holding Period                   2 years      
Op Units [Member] | ARCT IV / ARCP Merger [Member] | ARCP IV [Member]                          
Related Party Transaction [Line Items]                          
Conversion of Stock, Shares Converted                   6,700,000us-gaap_ConversionOfStockSharesConverted1
/ us-gaap_BusinessAcquisitionAxis
= arcp_ARCTIVARCPMergerMember
/ dei_LegalEntityAxis
= arcp_ARCPIVMember
/ us-gaap_StatementClassOfStockAxis
= arcp_OpUnitsMember		      
Senior Secured Credit Facility [Member] | Revolving Credit Facility [Member] | Cole Office And Industrial REIT (CCIT II), Inc. [Member]                          
Related Party Transaction [Line Items]                          
Due from affiliates   55,000,000us-gaap_DueFromAffiliates
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeOfficeAndIndustrialREITCCITIIInc.Member		   55,000,000us-gaap_DueFromAffiliates
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeOfficeAndIndustrialREITCCITIIInc.Member		                  
available borrowings under the revolving line of credit   10,000,000us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeOfficeAndIndustrialREITCCITIIInc.Member		   10,000,000us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeOfficeAndIndustrialREITCCITIIInc.Member		                  
Senior Secured Credit Facility [Member] | Revolving Credit Facility [Member] | Cole Credit Property Trust V, Inc. [Member]                          
Related Party Transaction [Line Items]                          
Due from affiliates   9,700,000us-gaap_DueFromAffiliates
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeCreditPropertyTrustVInc.Member		   9,700,000us-gaap_DueFromAffiliates
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeCreditPropertyTrustVInc.Member		                  
available borrowings under the revolving line of credit   10,000,000us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeCreditPropertyTrustVInc.Member		   10,000,000us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeCreditPropertyTrustVInc.Member		                  
Restricted Share Plan [Member] | Restricted Stock [Member]                          
Related Party Transaction [Line Items]                          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Fair Value       12,500,000arcp_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= arcp_RestrictedSharePlanMember		                  
Restricted Share Plan [Member] | Employee [Member] | Restricted Stock [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Number of Restricted Common Shares, Granted       796,075us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= arcp_RestrictedSharePlanMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember
/ us-gaap_TitleOfIndividualAxis
= arcp_EmployeeMember		                  
Restricted Share Plan [Member] | Director [Member] | Restricted Stock [Member] | Affiliates Of Former Manager [Member]                          
Related Party Transaction [Line Items]                          
Number of Restricted Common Shares, Granted       87,202us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= arcp_RestrictedSharePlanMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_AffiliatesofFormerManagerMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_DirectorMember		                  
LIBOR [Member] | Senior Secured Credit Facility [Member] | Revolving Credit Facility [Member] | Cole Office And Industrial REIT (CCIT II), Inc. And Cole Credit Property Trust V, Inc. [Member]                          
Related Party Transaction [Line Items]                          
Debt instrument, basis spread on variable rate       2.20%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeOfficeAndIndustrialREITCCITIIInc.AndColeCreditPropertyTrustVInc.Member
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember		                  
Gross Proceeds, Initial Public Offering [Member] | Realty Capital Securities, LLC [Member] | Dealer Manager [Member]                          
Related Party Transaction [Line Items]                          
Related Party Transaction, Sales Commissions Earned by Related Party, Percentage of Benchmark   7.00%arcp_RelatedPartyTransactionSalesCommissionsEarnedByRelatedPartyPercentageOfBenchmark
/ dei_LegalEntityAxis
= arcp_RealtyCapitalSecuritiesLlcMember
/ arcp_RelatedPartyFeesByBenchmarkAxis
= arcp_GrossProceedsInitialPublicOfferingMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_DealerManagerMember		   7.00%arcp_RelatedPartyTransactionSalesCommissionsEarnedByRelatedPartyPercentageOfBenchmark
/ dei_LegalEntityAxis
= arcp_RealtyCapitalSecuritiesLlcMember
/ arcp_RelatedPartyFeesByBenchmarkAxis
= arcp_GrossProceedsInitialPublicOfferingMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_DealerManagerMember		                  
Amount Available Or Outstanding Under Financing Arrangement [Member] | ARC Properties Advisors, LLC [Member] | Manager [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements     6,300,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ dei_LegalEntityAxis
= arcp_ArcPropertiesAdvisorsLlcMember
/ arcp_RelatedPartyFeesByBenchmarkAxis
= arcp_AmountAvailableOrOutstandingUnderFinancingArrangementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ManagerMember		   13,800,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ dei_LegalEntityAxis
= arcp_ArcPropertiesAdvisorsLlcMember
/ arcp_RelatedPartyFeesByBenchmarkAxis
= arcp_AmountAvailableOrOutstandingUnderFinancingArrangementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ManagerMember		                
Related Party Transaction, Financing Coordination Fees Earned by Related Party, Percentage of Benchmark     0.75%arcp_RelatedPartyTransactionExpensesfromTransactionswithRelatedPartyPercentageOfSecuredMortgageOrRefinancingAvailable
/ dei_LegalEntityAxis
= arcp_ArcPropertiesAdvisorsLlcMember
/ arcp_RelatedPartyFeesByBenchmarkAxis
= arcp_AmountAvailableOrOutstandingUnderFinancingArrangementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ManagerMember		   0.75%arcp_RelatedPartyTransactionExpensesfromTransactionswithRelatedPartyPercentageOfSecuredMortgageOrRefinancingAvailable
/ dei_LegalEntityAxis
= arcp_ArcPropertiesAdvisorsLlcMember
/ arcp_RelatedPartyFeesByBenchmarkAxis
= arcp_AmountAvailableOrOutstandingUnderFinancingArrangementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ManagerMember		                
Gross Proceeds, Common Stock [Member] | Realty Capital Securities, LLC [Member] | Dealer Manager [Member]                          
Related Party Transaction [Line Items]                          
Related Party Transaction, Sales Commissions Earned by Related Party, Percentage of Benchmark   3.00%arcp_RelatedPartyTransactionSalesCommissionsEarnedByRelatedPartyPercentageOfBenchmark
/ dei_LegalEntityAxis
= arcp_RealtyCapitalSecuritiesLlcMember
/ arcp_RelatedPartyFeesByBenchmarkAxis
= arcp_GrossProceedsCommonStockMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_DealerManagerMember		   3.00%arcp_RelatedPartyTransactionSalesCommissionsEarnedByRelatedPartyPercentageOfBenchmark
/ dei_LegalEntityAxis
= arcp_RealtyCapitalSecuritiesLlcMember
/ arcp_RelatedPartyFeesByBenchmarkAxis
= arcp_GrossProceedsCommonStockMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_DealerManagerMember		                  
Pre-tax Non-compounded Return on Capital Contribution [Member] | Annual Targeted Investor Return [Member] | American Realty Capital Advisors III LLC [Member] | Advisor [Member] | Sale of ARCT III OP Units [Member]                          
Related Party Transaction [Line Items]                          
Related Party Transaction, Cumulative Capital Investment Return, as a Percentage of Benchmark 6.00%arcp_RelatedPartyTransactionCumulativeCapitalInvestmentReturnAsPercentageOfBenchmark
/ dei_LegalEntityAxis
= arcp_AmericanRealtyCapitalAdvisorsIiiLlcMember
/ arcp_RelatedPartyFeesByBenchmarkAxis
= arcp_PreTaxNonCompoundedReturnOnCapitalContributionMember
/ arcp_RelatedPartyTransactionsByCostAxis
= arcp_AnnualTargetedInvestorReturnMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_AdvisorMember
/ us-gaap_SubsidiarySaleOfStockAxis
= arcp_SaleOfArctIiiOpUnitsMember		           6.00%arcp_RelatedPartyTransactionCumulativeCapitalInvestmentReturnAsPercentageOfBenchmark
/ dei_LegalEntityAxis
= arcp_AmericanRealtyCapitalAdvisorsIiiLlcMember
/ arcp_RelatedPartyFeesByBenchmarkAxis
= arcp_PreTaxNonCompoundedReturnOnCapitalContributionMember
/ arcp_RelatedPartyTransactionsByCostAxis
= arcp_AnnualTargetedInvestorReturnMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_AdvisorMember
/ us-gaap_SubsidiarySaleOfStockAxis
= arcp_SaleOfArctIiiOpUnitsMember		            
Pre-tax Non-compounded Return on Capital Contribution [Member] | Annual Targeted Investor Return [Member] | ARCT IV / ARCP Merger [Member] | American Realty Capital Advisors III LLC [Member] | Advisor [Member]                          
Related Party Transaction [Line Items]                          
Related Party Transaction, Cumulative Capital Investment Return, as a Percentage of Benchmark                   6.00%arcp_RelatedPartyTransactionCumulativeCapitalInvestmentReturnAsPercentageOfBenchmark
/ us-gaap_BusinessAcquisitionAxis
= arcp_ARCTIVARCPMergerMember
/ dei_LegalEntityAxis
= arcp_AmericanRealtyCapitalAdvisorsIiiLlcMember
/ arcp_RelatedPartyFeesByBenchmarkAxis
= arcp_PreTaxNonCompoundedReturnOnCapitalContributionMember
/ arcp_RelatedPartyTransactionsByCostAxis
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Related Party Transaction, Cumulative Capital Investment Return                   358,300,000arcp_RelatedPartyTransactionCumulativeCapitalInvestmentReturn
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Related Party Transaction [Line Items]                          
Related Party Transaction, Property Management Fees Earned by Related Party, Percentage of Benchmark     2.00%arcp_RelatedPartyTransactionPropertyManagementFeesEarnedByRelatedPartyPercentageOfBenchmark
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/ arcp_RelatedPartyFeesByBenchmarkAxis
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/ arcp_RelatedPartyFeesByBenchmarkAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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Gross Revenue, Excluding Stand-alone Single-tenant Net Leased Properties [Member] | American Realty Capital Advisors III LLC [Member] | Advisor [Member]                          
Related Party Transaction [Line Items]                          
Related Party Transaction, Property Management Fees Earned by Related Party, Percentage of Benchmark     4.00%arcp_RelatedPartyTransactionPropertyManagementFeesEarnedByRelatedPartyPercentageOfBenchmark
/ dei_LegalEntityAxis
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/ arcp_RelatedPartyFeesByBenchmarkAxis
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Gross Revenue, Managed Properties [Member] | Maximum [Member] | American Realty Capital Advisors III LLC [Member] | Advisor [Member]                          
Related Party Transaction [Line Items]                          
Related Party Transaction, Property Management Fees Earned by Related Party, Percentage of Benchmark     1.00%arcp_RelatedPartyTransactionPropertyManagementFeesEarnedByRelatedPartyPercentageOfBenchmark
/ dei_LegalEntityAxis
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/ arcp_RelatedPartyFeesByBenchmarkAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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Acquisition Related Expenses [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements   113,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
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Acquisition Related Expenses [Member] | Former Manager and Affiliates of Former Manager [Member]                          
Related Party Transaction [Line Items]                          
Related Party Transaction, Acquisition Fees Earned by Related Party, Percentage of Benchmark   1.00%arcp_RelatedPartyTransactionAcquisitionFeesEarnedByRelatedPartyPercentageOfBenchmark
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Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements     6,600,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ dei_LegalEntityAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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Acquisition Related Expenses [Member] | GE Capital Portfolio [Member]                          
Related Party Transaction [Line Items]                          
Payments to related parties     1,900,000arcp_RelatedPartyTransactionPaymentsToRelatedParty
/ us-gaap_BusinessAcquisitionAxis
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Acquisition Related Expenses [Member] | GE Capital Portfolio [Member] | ARCT IV [Member]                          
Related Party Transaction [Line Items]                          
Payments to related parties     5,300,000arcp_RelatedPartyTransactionPaymentsToRelatedParty
/ us-gaap_BusinessAcquisitionAxis
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/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionAxis
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Related Party Transaction, Acquisition Fees Earned by Related Party, Percentage of Benchmark     0.25%arcp_RelatedPartyTransactionAcquisitionFeesEarnedByRelatedPartyPercentageOfBenchmark
/ us-gaap_BusinessAcquisitionAxis
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/ dei_LegalEntityAxis
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/ us-gaap_RelatedPartyTransactionAxis
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Acquisition Related Expenses [Member] | Fortress Investment Group LLC Portfolio [Member]                          
Related Party Transaction [Line Items]                          
Payments to related parties       1,000,000arcp_RelatedPartyTransactionPaymentsToRelatedParty
/ us-gaap_BusinessAcquisitionAxis
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/ us-gaap_RelatedPartyTransactionAxis
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Acquisition Related Expenses [Member] | Inland Acquisition [Member]                          
Related Party Transaction [Line Items]                          
Payments to related parties   100,000arcp_RelatedPartyTransactionPaymentsToRelatedParty
/ us-gaap_BusinessAcquisitionAxis
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/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_BusinessAcquisitionAxis
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/ us-gaap_RelatedPartyTransactionAxis
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Acquisition Related Expenses [Member] | Contract Purchase Price [Member] | Fortress Investment Group LLC Portfolio [Member] | ARCT IV [Member]                          
Related Party Transaction [Line Items]                          
Related Party Transaction, Acquisition Fees Earned by Related Party, Percentage of Benchmark   0.25%arcp_RelatedPartyTransactionAcquisitionFeesEarnedByRelatedPartyPercentageOfBenchmark
/ us-gaap_BusinessAcquisitionAxis
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/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_BusinessAcquisitionAxis
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/ dei_LegalEntityAxis
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/ us-gaap_RelatedPartyTransactionAxis
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Acquisition Related Expenses [Member] | Contract Purchase Price [Member] | Inland Acquisition [Member] | ARCT IV [Member]                          
Related Party Transaction [Line Items]                          
Related Party Transaction, Acquisition Fees Earned by Related Party, Percentage of Benchmark   0.25%arcp_RelatedPartyTransactionAcquisitionFeesEarnedByRelatedPartyPercentageOfBenchmark
/ us-gaap_BusinessAcquisitionAxis
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/ us-gaap_RelatedPartyTransactionAxis
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Acquisition Related Expenses Reimbursed Expenses [Member] | GE Capital Portfolio [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements     6,100,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_BusinessAcquisitionAxis
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/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_BusinessAcquisitionAxis
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/ us-gaap_RelatedPartyTransactionAxis
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Asset Management Fees [Member] | ARCT IV [Member]                          
Related Party Transaction [Line Items]                          
Asset management fee, percentage of assets                   0.1875%arcp_RelatedPartyTransactionsAssetManagementFeePercentageOfAssets
/ us-gaap_RelatedPartyTransactionAxis
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Asset Management Fees [Member] | ARCT III [Member] | Advisor [Member]                          
Related Party Transaction [Line Items]                          
Related Party Transaction, Cumulative Capital Investment Return, as a Percentage of Benchmark   6.00%arcp_RelatedPartyTransactionCumulativeCapitalInvestmentReturnAsPercentageOfBenchmark
/ dei_LegalEntityAxis
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Asset Management Fees [Member] | Class B Units [Member] | ARCT IV [Member]                          
Related Party Transaction [Line Items]                          
Stock issued during period, shares, issued for services           492,483us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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/ us-gaap_StatementClassOfStockAxis
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/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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Management Fees To Affiliates, Property Management Fees [Member] | Affiliates Of Former Manager [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements       0us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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Management Fees To Affiliates, Property Management Fees [Member] | ARC Advisory [Member] | Affiliates Of Former Manager [Member]                          
Related Party Transaction [Line Items]                          
Payments to related parties         2,300,000arcp_RelatedPartyTransactionPaymentsToRelatedParty
/ us-gaap_CounterpartyNameAxis
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Related Party Transactions, Property Management Services Service Period Extension, Days         60 days                
Fees and Expense Reimbursements [Member] | Affiliates Of Former Manager [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements   400,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
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Equity Awards, Valuation [Member] | Affiliates Of Former Manager [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements     3,100,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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Equity Awards [Member] | Affiliates Of Former Manager [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements   0us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionAxis
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Equity Awards [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements       1,600,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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Equity Awards [Member] | ARCT III Merger [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
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/ us-gaap_BusinessAcquisitionAxis
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/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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Equity Awards [Member] | Restricted Stock [Member] | Affiliates Of Former Manager [Member]                          
Related Party Transaction [Line Items]                          
Number of Restricted Common Shares, Granted         325,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
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/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Fair Value         4,500,000arcp_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodFairValue
/ us-gaap_AwardTypeAxis
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/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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Tenant Improvement, Furniture And Operating Expenses [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements   3,500,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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Tenant Improvement And Furniture Costs [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Payments to related parties       8,500,000arcp_RelatedPartyTransactionPaymentsToRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                  
Indirect Affiliate Expenses [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements   3,997,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
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Indirect Affiliate Expenses [Member] | Operating Partnership Unit [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related Party Transactions, Shares Delivered and Retired       916,423arcp_RelatedPartyTransactionsSharesDeliveredandRetired
/ us-gaap_RelatedPartyTransactionAxis
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/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember
/ us-gaap_StatementClassOfStockAxis
= arcp_OperatingPartnershipUnitMember		                  
ANST Office Build Out [Member]                          
Related Party Transaction [Line Items]                          
Payments to related parties       300,000arcp_RelatedPartyTransactionPaymentsToRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_AnstOfficeBuildOutMember		                  
ANST Office Build Out [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements   335,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_AnstOfficeBuildOutMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		   335,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_AnstOfficeBuildOutMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                  
New York Office [Member] | Affiliates Of Former Manager [Member]                          
Related Party Transaction [Line Items]                          
Payments to related parties   100,000arcp_RelatedPartyTransactionPaymentsToRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_NewYorkOfficeMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_AffiliatesofFormerManagerMember		   200,000arcp_RelatedPartyTransactionPaymentsToRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_NewYorkOfficeMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_AffiliatesofFormerManagerMember		                  
New York Office [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements   116,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_NewYorkOfficeMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		   187,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_NewYorkOfficeMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                  
Other Related Parties [Member]                          
Related Party Transaction [Line Items]                          
Indirect ownership interests, percentage       100.00%arcp_IndirectOwnershipInterestInAssetsPercentage
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OtherRelatedPartiesMember		                  
Number of properties   63arcp_NumberOfProperties
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OtherRelatedPartiesMember		   63arcp_NumberOfProperties
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OtherRelatedPartiesMember		                  
Dealer Manager [Member] | Gross Proceeds, Initial Public Offering [Member] | Realty Capital Securities, LLC [Member]                          
Related Party Transaction [Line Items]                          
Related Party Transaction, Sales Commissions Earned by Related Party, Percentage of Benchmark   7.00%arcp_RelatedPartyTransactionSalesCommissionsEarnedByRelatedPartyPercentageOfBenchmark
/ dei_LegalEntityAxis
= arcp_RealtyCapitalSecuritiesLlcMember
/ arcp_RelatedPartyFeesByBenchmarkAxis
= arcp_GrossProceedsInitialPublicOfferingMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_DealerManagerMember		   7.00%arcp_RelatedPartyTransactionSalesCommissionsEarnedByRelatedPartyPercentageOfBenchmark
/ dei_LegalEntityAxis
= arcp_RealtyCapitalSecuritiesLlcMember
/ arcp_RelatedPartyFeesByBenchmarkAxis
= arcp_GrossProceedsInitialPublicOfferingMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_DealerManagerMember		                  
Selling Commissions Reallowance Expense [Member]                          
Related Party Transaction [Line Items]                          
Revenue from related parties   6,109,000us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SellingCommissionsReallowanceExpenseMember		   35,626,000us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SellingCommissionsReallowanceExpenseMember		                  
Selling Commissions Reallowance Expense [Member] | CCPT IV, CCIT II, CCPT V [Member]                          
Related Party Transaction [Line Items]                          
Commissions Percentage On Stock Sales And Related Dealer Manager Fees   100.00%arcp_CommissionsPercentageOnStockSalesAndRelatedDealerManagerFees
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SellingCommissionsReallowanceExpenseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeCreditPropertyTrustIVInc.ColeOfficeAndIndustrialREITCCITIIInc.AndColeCreditPropertyTrustVInc.Member		   100.00%arcp_CommissionsPercentageOnStockSalesAndRelatedDealerManagerFees
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SellingCommissionsReallowanceExpenseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeCreditPropertyTrustIVInc.ColeOfficeAndIndustrialREITCCITIIInc.AndColeCreditPropertyTrustVInc.Member		                  
Selling Commissions Reallowance Expense [Member] | Cole Real Estate Income Strategy [Member]                          
Related Party Transaction [Line Items]                          
Revenue from related parties   195,000us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SellingCommissionsReallowanceExpenseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeRealEstateIncomeStrategyMember		   216,000us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SellingCommissionsReallowanceExpenseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeRealEstateIncomeStrategyMember		                  
Commissions Percentage On Stock Sales And Related Dealer Manager Fees   100.00%arcp_CommissionsPercentageOnStockSalesAndRelatedDealerManagerFees
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SellingCommissionsReallowanceExpenseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeRealEstateIncomeStrategyMember		   100.00%arcp_CommissionsPercentageOnStockSalesAndRelatedDealerManagerFees
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SellingCommissionsReallowanceExpenseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeRealEstateIncomeStrategyMember		                  
Selling Commissions Reallowance Expense [Member] | Cole Office And Industrial REIT (CCIT II), Inc. [Member]                          
Related Party Transaction [Line Items]                          
Revenue from related parties   4,579,000us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SellingCommissionsReallowanceExpenseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeOfficeAndIndustrialREITCCITIIInc.Member		   4,950,000us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SellingCommissionsReallowanceExpenseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeOfficeAndIndustrialREITCCITIIInc.Member		                  
Selling Commissions Reallowance Expense [Member] | Cole Credit Property Trust V, Inc. [Member]                          
Related Party Transaction [Line Items]                          
Revenue from related parties   1,347,000us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SellingCommissionsReallowanceExpenseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeCreditPropertyTrustVInc.Member		   1,347,000us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SellingCommissionsReallowanceExpenseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeCreditPropertyTrustVInc.Member		                  
Dealer Manager Fee [Member] | Common Class W [Member] | Cole Real Estate Income Strategy [Member]                          
Related Party Transaction [Line Items]                          
Daily Asset Based Related Party Fee Percent   0.55%arcp_DailyAssetBasedRelatedPartyFeePercent
/ us-gaap_RelatedPartyTransactionAxis
= arcp_DealerManagerFeeMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeRealEstateIncomeStrategyMember
/ us-gaap_StatementClassOfStockAxis
= arcp_CommonClassWMember		   0.55%arcp_DailyAssetBasedRelatedPartyFeePercent
/ us-gaap_RelatedPartyTransactionAxis
= arcp_DealerManagerFeeMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeRealEstateIncomeStrategyMember
/ us-gaap_StatementClassOfStockAxis
= arcp_CommonClassWMember		                  
Dealer Manager Fee [Member] | Common Class A [Member] | Cole Real Estate Income Strategy [Member]                          
Related Party Transaction [Line Items]                          
Daily Asset Based Related Party Fee Percent   0.55%arcp_DailyAssetBasedRelatedPartyFeePercent
/ us-gaap_RelatedPartyTransactionAxis
= arcp_DealerManagerFeeMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeRealEstateIncomeStrategyMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember		   0.55%arcp_DailyAssetBasedRelatedPartyFeePercent
/ us-gaap_RelatedPartyTransactionAxis
= arcp_DealerManagerFeeMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeRealEstateIncomeStrategyMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember		                  
Dealer Manager Fee [Member] | Common Class I [Member] | Cole Real Estate Income Strategy [Member]                          
Related Party Transaction [Line Items]                          
Daily Asset Based Related Party Fee Percent   0.25%arcp_DailyAssetBasedRelatedPartyFeePercent
/ us-gaap_RelatedPartyTransactionAxis
= arcp_DealerManagerFeeMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeRealEstateIncomeStrategyMember
/ us-gaap_StatementClassOfStockAxis
= arcp_CommonClassIMember		   0.25%arcp_DailyAssetBasedRelatedPartyFeePercent
/ us-gaap_RelatedPartyTransactionAxis
= arcp_DealerManagerFeeMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeRealEstateIncomeStrategyMember
/ us-gaap_StatementClassOfStockAxis
= arcp_CommonClassIMember		                  
Selling Commission Revenue [Member] | Cole Real Estate Income Strategy [Member]                          
Related Party Transaction [Line Items]                          
Commissions Percentage On Stock Sales And Related Dealer Manager Fees   3.75%arcp_CommissionsPercentageOnStockSalesAndRelatedDealerManagerFees
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SellingCommissionMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeRealEstateIncomeStrategyMember		   3.75%arcp_CommissionsPercentageOnStockSalesAndRelatedDealerManagerFees
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SellingCommissionMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeRealEstateIncomeStrategyMember		                  
Distribution Fee [Member] | Common Class A [Member] | Cole Real Estate Income Strategy [Member]                          
Related Party Transaction [Line Items]                          
Daily Asset Based Related Party Fee Percent   0.50%arcp_DailyAssetBasedRelatedPartyFeePercent
/ us-gaap_RelatedPartyTransactionAxis
= arcp_DistributionFeeMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeRealEstateIncomeStrategyMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember		   0.50%arcp_DailyAssetBasedRelatedPartyFeePercent
/ us-gaap_RelatedPartyTransactionAxis
= arcp_DistributionFeeMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeRealEstateIncomeStrategyMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember		                  
Organization and Offering Fee [Member] | Cole Managed REITs [Member]                          
Related Party Transaction [Line Items]                          
Program Development Costs   7,000,000arcp_ProgramDevelopmentCosts
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OrganizationandOfferingExpensesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeManagedRealEstateInvestmentTrustsMember		   7,000,000arcp_ProgramDevelopmentCosts
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OrganizationandOfferingExpensesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_ColeManagedRealEstateInvestmentTrustsMember		                  
Brokerage Commission Fee [Member] | ARCT IV Advisor [Member]                          
Related Party Transaction [Line Items]                          
Payments to related parties       8,400,000arcp_RelatedPartyTransactionPaymentsToRelatedParty
/ us-gaap_CounterpartyNameAxis
= arcp_ARCTIVAdvisorMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_BrokerageCommissionFeeMember		                  
Strategic and Financial Advisory Services Fee [Member] | ARC Advisory [Member] | Cole Merger [Member] | Affiliates Of Former Manager [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements       14,200,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ColeMergerMember
/ us-gaap_CounterpartyNameAxis
= arcp_ARCAdvisoryMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_StrategicandFinancialAdvisoryServicesFeeMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_AffiliatesofFormerManagerMember		                  
Related Party Transaction, Service Fee Percentage   0.25%arcp_RelatedPartyTransactionServiceFeePercentage
/ us-gaap_BusinessAcquisitionAxis
= arcp_ColeMergerMember
/ us-gaap_CounterpartyNameAxis
= arcp_ARCAdvisoryMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_StrategicandFinancialAdvisoryServicesFeeMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_AffiliatesofFormerManagerMember		   0.25%arcp_RelatedPartyTransactionServiceFeePercentage
/ us-gaap_BusinessAcquisitionAxis
= arcp_ColeMergerMember
/ us-gaap_CounterpartyNameAxis
= arcp_ARCAdvisoryMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_StrategicandFinancialAdvisoryServicesFeeMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_AffiliatesofFormerManagerMember		                  
Strategic and Financial Advisory Services Fee [Member] | RCS Advisory [Member] | MT-Spin Off [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements       1,800,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_MtSpinOffMember
/ us-gaap_CounterpartyNameAxis
= arcp_RcsAdvisoryMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_StrategicandFinancialAdvisoryServicesFeeMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                  
Other Non-Routine Costs, Legal Fees And Expenses [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements         61,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OtherNonRoutineCostsLegalFeesAndExpensesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                
Other Non-Routine Costs, Legal Fees And Expenses [Member] | ARCT III Merger [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements         61,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ACRTIIIMergerMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OtherNonRoutineCostsLegalFeesAndExpensesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                
Other Non-Routine Costs, Legal Fees And Expenses [Member] | Cole Merger [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements       2,900,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ColeMergerMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OtherNonRoutineCostsLegalFeesAndExpensesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                  
Payments to related parties       2,900,000arcp_RelatedPartyTransactionPaymentsToRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ColeMergerMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OtherNonRoutineCostsLegalFeesAndExpensesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                  
Purchase of Furniture, Fixtures and Equipment and Unreimbursed Expenses [Member] | Former Manager [Member]                          
Related Party Transaction [Line Items]                          
Related party transaction, purchases from related party       15,800,000us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_PurchaseofFurnitureFixturesandEquipmentandUnreimbursedExpensesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_FormerManagerMember		 5,800,000us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_PurchaseofFurnitureFixturesandEquipmentandUnreimbursedExpensesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_FormerManagerMember		                
Post Transaction Support Services [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements       11,352,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_PostTransactionSupportServicesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                  
Post Transaction Support Services [Member] | Cole Merger [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements       0us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ColeMergerMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_PostTransactionSupportServicesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                  
Post Transaction Support Services [Member] | ARCT III Merger [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements         2,000,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ArctiiiMergerMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_PostTransactionSupportServicesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                
Payments to related parties         2,000,000arcp_RelatedPartyTransactionPaymentsToRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ArctiiiMergerMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_PostTransactionSupportServicesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                
Post Transaction Support Services [Member] | ARCT IV Merger [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements       1,352,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ARCTIVMergerMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_PostTransactionSupportServicesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                  
Post Transaction Support Services [Member] | ARCT IV / ARCP Merger [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Payments to related parties                     10,000,000arcp_RelatedPartyTransactionPaymentsToRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ARCTIVARCPMergerMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_PostTransactionSupportServicesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		    
Related Party Transactions, Property Management Services Service Period Extension, Days                     60 days    
Other Non-Routine Costs, Personnel Costs And Other Reimbursements [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements       2,145,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OtherNonRoutineCostsPersonnelCostsAndOtherReimbursementsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		 2,000,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OtherNonRoutineCostsPersonnelCostsAndOtherReimbursementsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                
Other Non-Routine Costs, Personnel Costs And Other Reimbursements [Member] | ARCT III Merger [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements         2,000,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ACRTIIIMergerMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OtherNonRoutineCostsPersonnelCostsAndOtherReimbursementsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                
Other Non-Routine Costs, Personnel Costs And Other Reimbursements [Member] | Cole Merger [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements       1,728,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ColeMergerMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OtherNonRoutineCostsPersonnelCostsAndOtherReimbursementsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                  
Other Non-Routine Costs, Personnel Costs And Other Reimbursements [Member] | ARCT IV Merger [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements       417,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ARCTIVMergerMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OtherNonRoutineCostsPersonnelCostsAndOtherReimbursementsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                  
Other Non-Routine Costs, Personnel Costs And Other Reimbursements [Member] | ARC Advisory [Member] | ARCT IV Merger [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Payments to related parties       1,300,000arcp_RelatedPartyTransactionPaymentsToRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ARCTIVMergerMember
/ us-gaap_CounterpartyNameAxis
= arcp_ARCAdvisoryMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OtherNonRoutineCostsPersonnelCostsAndOtherReimbursementsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                  
Lease Agreement and Termination [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Payments to related parties   100,000arcp_RelatedPartyTransactionPaymentsToRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_LeaseAgreementAndTerminationMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		   100,000arcp_RelatedPartyTransactionPaymentsToRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_LeaseAgreementAndTerminationMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                  
Lease term                       15 years  
Lease amount                       400,000arcp_RelatedPartyTransactionLeaseAmount
/ us-gaap_RelatedPartyTransactionAxis
= arcp_LeaseAgreementAndTerminationMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		  
Revenue from related parties   9,000us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionAxis
= arcp_LeaseAgreementAndTerminationMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		   17,000us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionAxis
= arcp_LeaseAgreementAndTerminationMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                  
Offering Related Costs [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements   2,000,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OfferingRelatedCostsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		 22,669,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OfferingRelatedCostsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		 2,150,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OfferingRelatedCostsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		 158,657,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_OfferingRelatedCostsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                
Subordinated Distributions [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements       78,244,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SubordinatedDistributionsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		 98,360,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SubordinatedDistributionsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                
Subordinated Distributions [Member] | ARCT III Merger [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements         98,360,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ACRTIIIMergerMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SubordinatedDistributionsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                
Subordinated Distributions [Member] | Cole Merger [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements       0us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ColeMergerMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SubordinatedDistributionsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                  
Subordinated Distributions [Member] | ARCT IV Merger [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements       78,244,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ARCTIVMergerMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SubordinatedDistributionsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                  
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned   78,200,000us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned
/ us-gaap_BusinessAcquisitionAxis
= arcp_ARCTIVMergerMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SubordinatedDistributionsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		   78,200,000us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned
/ us-gaap_BusinessAcquisitionAxis
= arcp_ARCTIVMergerMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SubordinatedDistributionsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                  
Subordinated Distributions [Member] | ARCT III [Member] | Affiliated Entity [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements         98,400,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ARCTIIIMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_SubordinatedDistributionsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember		                
Management Fees To Affiliates, Asset Management Fees [Member] | Affiliates Of Former Manager [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements       13,888,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_ManagementFeestoAffiliatesAssetManagementFeesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_AffiliatesofFormerManagerMember		 11,693,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= arcp_ManagementFeestoAffiliatesAssetManagementFeesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_AffiliatesofFormerManagerMember		                
Management Fees To Affiliates, Asset Management Fees [Member] | Class B Units [Member] | ARCT III Merger [Member] | Affiliates Of Former Manager [Member]                          
Related Party Transaction [Line Items]                          
Related party operation fees and reimbursements                         $ 9,400,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_BusinessAcquisitionAxis
= arcp_ACRTIIIMergerMember
/ us-gaap_RelatedPartyTransactionAxis
= arcp_ManagementFeestoAffiliatesAssetManagementFeesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= arcp_AffiliatesofFormerManagerMember
/ us-gaap_StatementClassOfStockAxis
= arcp_ClassBUnitsMember
[1] For discussion on the restatement adjustments, see Note 2 - Restatement of Previously Issued Financial Statements.