XML 32 R35.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Real Estate (Impairments) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Real Estate [Abstract] |  |
Continuing operations | $ 396 | $ 2,851
Discontinued operations | 63 | 0
Impairment Losses and Other Charges | $ 459 | $ 2,851

X
- Definition Impairment Losses and Other Charges + References No definition available. + Details
Name: | nnn_ImpairmentLossesAndOtherCharges
Namespace Prefix: | nnn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Impairment Losses, Continuing Operations, Net of Recoveries + References No definition available. + Details
Name: | nnn_ImpairmentLossesContinuingOperationsNetofRecoveries
Namespace Prefix: | nnn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Impairment Losses, Discontinued Operaitons + References No definition available. + Details
Name: | nnn_ImpairmentLossesDiscontinuedOperaitons
Namespace Prefix: | nnn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_RealEstateAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration