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Stockholders' Equity (Tables) | 9 Months Ended
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Sep. 30, 2012
Stockholders' Equity Note [Abstract] |
Schedule of Dividends Declared and Paid [Table Text Block] | The following table outlines the dividends declared and paid for each issuance of NNN's stock (in thousands, except per share data):
|  | Nine Months Ended September 30,
|  | 2012 |  | 2011
Series C preferred stock (1): |  |  |
| Dividends | $ | 1,979 |  |  | $ | 5,089 |
| Per share | 0.5378 |  |  | 1.3828 |
Series D preferred stock (2): |  |  |
| Dividends | 10,688 |  |  | — |
| Per share | 0.9293 |  |  | — |
Common stock: |  |  |
| Dividends | 124,139 |  |  | 96,915 |
| Per share | 1.165 |  |  | 1.145 |
1) The Series C preferred stock was redeemed in March 2012. The dividends paid during the quarter ended March 31, 2012 include accumulated and unpaid dividends through the redemption date. 2) The Series D preferred stock dividends paid during the quarter ended June 30, 2012 include accumulated and unpaid dividends from the issuance date through the declaration date. The Series D preferred stock has no maturity date and will remain outstanding unless redeemed.
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] | The following outlines the common stock issuances pursuant to NNN's DRIP (dollars in thousands):
| Nine Months Ended September 30,
| 2012 |  | 2011
Shares of common stock | 1,994,113 |  |  | 2,423,611 |
Net proceeds | $ | 52,781 |  |  | $ | 59,707 |

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- Definition Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64, 65, A240 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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