Income Taxes	3 Months Ended
Mar. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes: NNN has elected to be taxed as a REIT under the Internal Revenue Code (“Code”), commencing with its taxable year ended December 31, 1984. To qualify as a REIT, NNN must meet a number of organizational and operational requirements, including a requirement that it currently distribute at least 90% of its REIT taxable income to its stockholders. NNN intends to adhere to these requirements and maintain its REIT status. As a REIT, NNN generally will not be subject to corporate level federal income tax on taxable income that it distributes currently to its stockholders. NNN may be subject to certain state and local taxes on its income and property, and to federal income and excise taxes on its undistributed taxable income, if any. The provision for federal income taxes in NNN's consolidated financial statements relates to its TRS operations and any potential taxable built-in gain. NNN did not have significant tax provisions or deferred income tax items during the periods reported hereunder. At the close of business on December 31, 2015, NNN elected to revoke its election to classify the TRS as taxable REIT subsidiaries. NNN, in accordance with FASB guidance included in Income Taxes, has analyzed its various federal and state tax filing positions. NNN believes that its income tax filing positions and deductions are well documented and supported. Additionally, NNN believes that its accruals for tax liabilities are adequate. Therefore, no reserves for uncertain income tax positions have been recorded pursuant to the FASB guidance. NNN has had no increases or decreases in unrecognized tax benefits for current or prior years. Further, no interest or penalties have been included since no reserves were recorded and no significant increases or decreases are expected to occur within the next 12 months. When applicable, such interest and penalties will be recorded as non-operating expenses. The periods that remain open under federal statute are 2012 through 2016. NNN also files tax returns in many states with varying open years under statute.

Income Taxes

3 Months Ended

Mar. 31, 2016

Income Taxes:

NNN has elected to be taxed as a REIT under the Internal Revenue Code (“Code”), commencing with its taxable year ended December 31, 1984. To qualify as a REIT, NNN must meet a number of organizational and operational requirements, including a requirement that it currently distribute at least 90% of its REIT taxable income to its stockholders. NNN intends to adhere to these requirements and maintain its REIT status. As a REIT, NNN generally will not be subject to corporate level federal income tax on taxable income that it distributes currently to its stockholders. NNN may be subject to certain state and local taxes on its income and property, and to federal income and excise taxes on its undistributed taxable income, if any. The provision for federal income taxes in NNN's consolidated financial statements relates to its TRS operations and any potential taxable built-in gain. NNN did not have significant tax provisions or deferred income tax items during the periods reported hereunder.

At the close of business on December 31, 2015, NNN elected to revoke its election to classify the TRS as taxable REIT subsidiaries.

NNN, in accordance with FASB guidance included in Income Taxes, has analyzed its various federal and state tax filing positions. NNN believes that its income tax filing positions and deductions are well documented and supported. Additionally, NNN believes that its accruals for tax liabilities are adequate. Therefore, no reserves for uncertain income tax positions have been recorded pursuant to the FASB guidance.

NNN has had no increases or decreases in unrecognized tax benefits for current or prior years. Further, no interest or penalties have been included since no reserves were recorded and no significant increases or decreases are expected to occur within the next 12 months. When applicable, such interest and penalties will be recorded as non-operating expenses. The periods that remain open under federal statute are 2012 through 2016. NNN also files tax returns in many states with varying open years under statute.