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Schedule III - Real Estate and Accumulated Depreciation and Amortization Under Operating Leases - Table 18 (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests $ 5,236,251us-gaap_RealEstateGrossAtCarryingValue $ 4,686,844us-gaap_RealEstateGrossAtCarryingValue $ 4,145,368us-gaap_RealEstateGrossAtCarryingValue $ 3,531,845us-gaap_RealEstateGrossAtCarryingValue
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 513,175us-gaap_RealEstateAccumulatedDepreciation 418,136us-gaap_RealEstateAccumulatedDepreciation 333,778us-gaap_RealEstateAccumulatedDepreciation 270,621us-gaap_RealEstateAccumulatedDepreciation
Operating Lease        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 26,000us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
     
Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 1,787,519us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
     
Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 2,915,411us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
     
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements 536,524us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
     
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
     
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,785,779us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 3,414,698us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 5,200,477us-gaap_RealEstateGrossAtCarryingValue
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 511,702us-gaap_RealEstateAccumulatedDepreciation
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
     
Operating Lease | Petro Express Lake Wylie, SC 1        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc1Member
     
Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 1,381us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc1Member
     
Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 2,061us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc1Member
     
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc1Member
     
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc1Member
     
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,381us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc1Member
[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 2,061us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc1Member
[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 3,442us-gaap_RealEstateGrossAtCarryingValue
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc1Member
[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 454us-gaap_RealEstateAccumulatedDepreciation
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc1Member
     
Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 35 years      
Operating Lease | Petro Express Lake Wylie, SC 2        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc2Member
     
Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 1,972us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc2Member
     
Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 1,283us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc2Member
     
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc2Member
     
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc2Member
     
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,972us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc2Member
[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,283us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc2Member
[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 3,255us-gaap_RealEstateGrossAtCarryingValue
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc2Member
[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 283us-gaap_RealEstateAccumulatedDepreciation
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLakeWylieSc2Member
     
Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 35 years      
Operating Lease | Petro Express Lincolnton, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLincolntonNCMember
     
Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 723us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLincolntonNCMember
     
Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 532us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLincolntonNCMember
     
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLincolntonNCMember
     
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLincolntonNCMember
     
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 723us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLincolntonNCMember
[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 532us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLincolntonNCMember
[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,255us-gaap_RealEstateGrossAtCarryingValue
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLincolntonNCMember
[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 137us-gaap_RealEstateAccumulatedDepreciation
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressLincolntonNCMember
     
Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 30 years      
Operating Lease | Petro Express Mineral Springs, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMineralSpringsNcMember
     
Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 678us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMineralSpringsNcMember
     
Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 577us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMineralSpringsNcMember
     
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMineralSpringsNcMember
     
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMineralSpringsNcMember
     
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 678us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMineralSpringsNcMember
[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 577us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMineralSpringsNcMember
[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,255us-gaap_RealEstateGrossAtCarryingValue
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMineralSpringsNcMember
[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 111us-gaap_RealEstateAccumulatedDepreciation
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMineralSpringsNcMember
     
Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Petro Express Monroe, NC 1        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMonroeNc1Member
     
Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 421us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMonroeNc1Member
     
Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 834us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMonroeNc1Member
     
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMonroeNc1Member
     
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMonroeNc1Member
     
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 421us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMonroeNc1Member
[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 834us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMonroeNc1Member
[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,255us-gaap_RealEstateGrossAtCarryingValue
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMonroeNc1Member
[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 184us-gaap_RealEstateAccumulatedDepreciation
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMonroeNc1Member
     
Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 35 years      
Operating Lease | Petro Express Monroe, NC 2        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMonroeNc2Member
     
Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 857us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMonroeNc2Member
     
Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 1,023us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMonroeNc2Member
     
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMonroeNc2Member
     
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMonroeNc2Member
     
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 857us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMonroeNc2Member
[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,023us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMonroeNc2Member
[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,880us-gaap_RealEstateGrossAtCarryingValue
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nnn_PetroExpressMonroeNc2Member
[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 197us-gaap_RealEstateAccumulatedDepreciation
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Petro Express Monroe, NC 3        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 709us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 796us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 709us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 796us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,505us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 175us-gaap_RealEstateAccumulatedDepreciation
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= nnn_OperatingLeaseMember
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 35 years      
Operating Lease | Petro Express Rock Hill, SC 1        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 3,095us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 1,910us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 3,095us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,910us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 5,005us-gaap_RealEstateGrossAtCarryingValue
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 421us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 35 years      
Operating Lease | Petro Express Rock Hill, SC 2        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 2,119us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 1,886us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,119us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,886us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 4,005us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 415us-gaap_RealEstateAccumulatedDepreciation
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= nnn_OperatingLeaseMember
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 35 years      
Operating Lease | Petro Express Rock Hill, SC 3        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 778us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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= nnn_OperatingLeaseMember
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 727us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements
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Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 778us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 727us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,505us-gaap_RealEstateGrossAtCarryingValue
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 187us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 30 years      
Operating Lease | Petro Express Statesville, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 1,886us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 2,182us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,864us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 2,182us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 4,046us-gaap_RealEstateGrossAtCarryingValue
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 480us-gaap_RealEstateAccumulatedDepreciation
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= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 35 years      
Operating Lease | Petro Express Waxhaw, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 508us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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= nnn_OperatingLeaseMember
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 747us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements
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Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 508us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 747us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,255us-gaap_RealEstateGrossAtCarryingValue
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 144us-gaap_RealEstateAccumulatedDepreciation
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Petro Express York, SC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 2,306us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 1,449us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
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Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,306us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
= nnn_OperatingLeaseMember
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,449us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 3,755us-gaap_RealEstateGrossAtCarryingValue
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 319us-gaap_RealEstateAccumulatedDepreciation
/ nnn_ClassificationOfInvestmentPropertyLeasesByTypeOfLeaseAxis
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 35 years      
Operating Lease | Petro Express Charlotte, NC 15        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,214us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 3,048us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 231us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Petro Express Charlotte, NC 16        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 2,280us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 4,129us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 435us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Petro Express Rock Hill, SC 4        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 5,254us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 409us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | PetSense Kingsville, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 499us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 682us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,181us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 169us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | PetSmart Chicago, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 3,566us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 6,290us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pier I Imports Anchorage, AK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,663us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 2,591us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 783us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pier I Imports Memphis, TN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 713us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 822us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,535us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 360us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pier I Imports Sanford, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pier I Imports Valdosta, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pizza Hut Monroeville, AL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Popeye's Snellville, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Popeye's Randallstown, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 25 years      
Operating Lease | Power Center Midland, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 377us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Power Center Big Flats, NY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Power Center Harlingen, TX 1        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 247us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 583us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 830us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Power Center Harlingen, TX 2        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,043us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,792us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 238us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Power Center Woodstock, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 261us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 701us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 261us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 516us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 777us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 95us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Premium Spas & Billiards Fairfax, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 105us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 194us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 564us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 758us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 107us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Augusta, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 1,414us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,414us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,449us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 2,863us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 273us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Birmingham, AL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 1,165us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 2,090us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,165us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 2,090us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 3,255us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 438us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Charlotte, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 2,913us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,908us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,724us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 4,632us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 361us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Conley, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 3,073us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Harvey, LA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 4,326us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Knoxville, TN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 2,384us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 3,345us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 445us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Louisville, KY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 3,206us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 1,532us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 3,206us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,532us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 4,738us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 321us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Nashville, TN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,164us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,414us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 3,578us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 296us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Norcross, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 1,831us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 1,040us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,040us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 2,871us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 218us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Cleveland, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 4,556us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 0us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 4,556us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 2,096us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 6,652us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 373us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Lafayette, LA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 392us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Montgomery, AL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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[1],[2]      
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 358us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Jackson, MS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 406us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Baton Rouge, LA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 3,256us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 471us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Memphis, TN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 2,964us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 491us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Mobile, AL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 550us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 2,772us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 3,322us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 413us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Winston-Salem, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 836us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 2,449us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 3,285us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 370us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Lithonia, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 2,410us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 2,345us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 4,755us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 349us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Columbia, SC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 935us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 2,178us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 3,113us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 324us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Pull-A-Part Akron, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,065us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,869us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 2,934us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 239us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Quaker Steak & Lube - Mentor, OH [Member]        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 841us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 2,452us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 3,293us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 50us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 35 years      
Operating Lease | QuikTrip Alpharetta, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 1,048us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 607us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 1,048us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 607us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,655us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 145us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | QuikTrip Clive, IA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 557us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 623us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 557us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,180us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 177us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 30 years      
Operating Lease | QuikTrip Des Moines, IA 1        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 379us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 455us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 379us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 455us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 834us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 145us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 30 years      
Operating Lease | QuikTrip Des Moines, IA 2        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 30 years      
Operating Lease | QuikTrip Gainesville, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,505us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 30 years      
Operating Lease | QuikTrip Herculaneum, MO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 2,469us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 513us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 30 years      
Operating Lease | QuikTrip Johnston, IA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 394us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 30 years      
Operating Lease | QuikTrip Lee's Summit, MO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 374us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 374us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 292us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | QuikTrip Norcross, GA 1        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 294us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,242us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 93us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 30 years      
Operating Lease | QuikTrip Norcross, GA 2        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 966us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 202us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements
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Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 966us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 202us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,168us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 64us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 30 years      
Operating Lease | QuikTrip Norcross, GA 3        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 844us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 297us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 839us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 297us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,136us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 30 years      
Operating Lease | QuikTrip Olathe, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 2,185us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 332us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | QuikTrip Tulsa, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 1,225us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 650us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,875us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 207us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 30 years      
Operating Lease | QuikTrip Urbandale, IA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 340us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 340us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 764us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,104us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 182us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | QuikTrip Wichita, KS 1        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 127us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 127us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 543us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 670us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 173us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 30 years      
Operating Lease | QuikTrip Wichita, KS 2        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 118us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 113us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 454us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 567us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 144us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 30 years      
Operating Lease | QuikTrip Woodstock, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 488us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements
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Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs 0us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 488us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,042us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,530us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 249us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Qwest Corporation Service Center Cedar Rapids, IA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Building, Improvements & Leasehold Interests 629us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land 184us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 629us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 813us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 300us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 20 years      
Operating Lease | Qwest Corporation Service Center Decorah, IA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 72us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 272us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 344us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 259us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 10 years      
Operating Lease | Rabobank Chico, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 346us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 30 years      
Operating Lease | Raising Cane's Lancaster, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 600us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,075us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,675us-gaap_RealEstateGrossAtCarryingValue
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Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 57us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Raising Cane's Sulphur, LA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Initial Cost to Company, Land 326us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,268us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,594us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 134us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 35 years      
Operating Lease | Raising Cane's Hurst, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,309us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 2,072us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization 105us-gaap_RealEstateAccumulatedDepreciation
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Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
Operating Lease | Raising Cane's Ft. Worth, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Real Estate and Accumulated Depreciation, Encumbrances 0us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
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Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Building, Improvements & Leasehold Interests 1,144us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
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[1],[2]      
Real Estate and Accumulated Depreciation, Gross Amount at Which Carried at Close of Period, Land, Building, Improvements & Leasehold Interests 1,936us-gaap_RealEstateGrossAtCarryingValue
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[1],[2]      
Real Estate and Accumulated Depreciation, Accumulated Depreciation and Amortization $ 92us-gaap_RealEstateAccumulatedDepreciation
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= nnn_RaisingCanesFtWorthTxMember
     
Real Estate and Accumulated Depreciation, Life on Which Depreciation & Amortization in Latest Income Statement is Computed 40 years      
[1] Transactions in real estate and accumulated depreciation during 2014, 2013, and 2012 are summarized as follows: 2014 2013 2012Land, buildings, and leasehold interests: Balance at the beginning of year$4,686,844 $4,145,368 $3,531,845Acquisitions, completed construction and tenant improvements601,168 602,836 701,054Disposition of land, buildings, and leasehold interests(50,938) (57,254) (77,219)Provision for loss on impairment of real estate(823) (4,106) (10,312)Balance at the close of year$5,236,251 $4,686,844 $4,145,368Accumulated depreciation and amortization: Balance at the beginning of year$418,136 $333,778 $270,621Disposition of land, buildings, and leasehold interests(9,153) (6,778) (6,980)Depreciation and amortization expense104,192 91,136 70,137Balance at the close of year$513,175 $418,136 $333,778
[2] As of December 31, 2014, the leases are treated as either operating or financing leases for federal income tax purposes. As of December 31, 2014, the aggregate cost of the properties owned by NNN that are under operating leases were $5,119,673 and financing leases were $2,703.