XML 85 R91.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Major Tenants Major Tenants (Details) | Dec. 31, 2012 tenant
--- | ---
Major Tenants [Abstract] |
Number of tenants that contributed 10% or more of company rental and earned income | 0

X
- Details
Name: | nnn_MajorTenantsAbstract
Namespace Prefix: | nnn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of Tenants That Contributed 10 Percent or More of Company Rental and Earned Income + References No definition available. + Details
Name: | nnn_NumberOfTenantsThatContributed10PercentOrMoreOfCompanyRentalAndEarnedIncome
Namespace Prefix: | nnn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant