XML 40 R29.htm IDEA: XBRL DOCUMENT
v3.20.2

Real Estate (Real Estate Held for Sale) (Details) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2020 USD ($) property | Dec. 31, 2019 USD ($) property
Real Estate [Abstract] |  |
Number of properties classified as held for sale | property | 3 | 8
Number of properties sold | property | 5 |
Land and improvements | $ 3,703 | $ 6,908
Building and improvements | 4,695 | 7,610
Real estate held-for-sale | 8,398 | 14,518
Less accumulated depreciation and amortization | (2,386) | (3,750)
Less impairment | (604) | (1,107)
Real estate held for sale | $ 5,408 | $ 9,661

X
- Definition Accumulated Impairment Real Estate Held For Sale + References No definition available. + Details
Name: | nnn_AccumulatedImpairmentRealEstateHeldForSale
Namespace Prefix: | nnn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Inventory, Building, Held-for-sale + References No definition available. + Details
Name: | nnn_InventoryBuildingHeldForSale
Namespace Prefix: | nnn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Inventory, Real Estate, Held-For-Sale, Accumulated Depreciation + References No definition available. + Details
Name: | nnn_InventoryRealEstateHeldForSaleAccumulatedDepreciation
Namespace Prefix: | nnn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number Of Disposed Properties + References No definition available. + Details
Name: | nnn_NumberOfDisposedProperties
Namespace Prefix: | nnn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number Of Properties Classified As Held For Sale + References No definition available. + Details
Name: | nnn_NumberOfPropertiesClassifiedAsHeldForSale
Namespace Prefix: | nnn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Carrying amount as of the balance sheet date of parcels of land held for sale, and on which the entity has no intention or no further intention to perform construction activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_InventoryLandHeldForSale
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents properties which were acquired directly or through foreclosure for which a committed plan to sell exists and an active program to market such properties has been initiated. + References No definition available. + Details
Name: | us-gaap_InventoryRealEstateHeldForSale
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_RealEstateAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying amount as of the balance sheet date of investments in land and buildings held for sale, excluding real estate considered to be inventory of the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(f)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
Name: | us-gaap_RealEstateHeldforsale
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant