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Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Cash flows from operating activities: |  |  |
Earnings including noncontrolling interests | $ 141,937 | $ 92,416 | $ 73,353
Adjustments to reconcile net earnings to net cash provided by operating activities: |  |  |
Performance incentive plan expense | 10,136 | 8,283 | 5,756
Stock options expense – tax effect | 0 | 0 | 122
Depreciation and amortization | 75,334 | 58,817 | 49,084
Impairment losses and other charges | 10,114 | 2,115 | 7,458
Impairment – commercial mortgage residual interests valuation | 2,812 | 1,024 | 3,995
Amortization of notes payable discount | 4,976 | 6,191 | 6,360
Amortization of debt costs | 2,584 | 0 | 0
Amortization of mortgages payable premium | (29) | 0 | 0
Amortization of deferred interest rate hedges | 231 | 9 | (166)
Equity in earnings of unconsolidated affiliate | (4,074) | (474) | (428)
Distributions received from unconsolidated affiliate | 7,019 | 593 | 578
Gain on disposition of real estate | (10,956) | (721) | (2,075)
Deferred income taxes | 732 | 884 | (2,544)
Income tax valuation allowance | 7,671 | 0 | (3,121)
Change in operating assets and liabilities, net of assets acquired and liabilities assumed in business combinations: |  |  |
Additions to held for sale real estate | (6,616) | (1,025) | (478)
Proceeds from disposition of held for sale real estate | 0 | 1,993 | 42,817
Decrease in real estate leased to others using the direct financing method | 1,624 | 1,595 | 1,544
Increase in work in process | (1,561) | (1,213) | (755)
Increase in mortgages, notes and accrued interest receivable | (187) | (96) | (467)
Decrease (increase) in receivables | (264) | 1,108 | (219)
Decrease (increase) in commercial mortgage residual interests | 523 | (654) | 1,516
Decrease (increase) in accrued rental income | (456) | 253 | 124
Decrease (increase) in other assets | 1,657 | 746 | (53)
Increase (decrease) in accrued interest payable | 2,419 | 7,766 | (129)
Increase (decrease) in other liabilities | (2,002) | 2,682 | (431)
Increase (decrease) in current tax liability | (152) | 654 | (169)
Net cash provided by operating activities | 228,130 | 182,946 | 187,914
Cash flows from investing activities: |  |  |
Proceeds from the disposition of real estate | 81,402 | 10,696 | 10,312
Additions to real estate: |  |  |
Accounted for using the operating method | (684,925) | (756,633) | (230,928)
Accounted for using the direct financing method | 0 | (1,747) | 0
Increase in mortgages and notes receivable | (8,768) | (9,838) | (8,564)
Principal payments on mortgages and notes receivable | 12,804 | 6,837 | 13,818
Payment of lease costs | (2,594) | (1,589) | (1,324)
Return of investment from unconsolidated affiliate | 1,220 | 0 | 0
Other | (898) | 206 | (3,574)
Net cash used in investing activities | (601,759) | (752,068) | (220,260)
Cash flows from financing activities: |  |  |
Proceeds from line of credit payable | 1,184,900 | 805,300 | 278,900
Repayment of line of credit payable | (1,076,300) | (900,700) | (117,900)
Payment of interest rate hedge | 0 | (5,218) | 0
Repayment of mortgages payable | (19,390) | (1,098) | (6,453)
Proceeds from notes payable | 320,011 | 295,731 | 0
Repayment of notes payable | (50,000) | 0 | (20,000)
Repayment of notes payable - convertible | (164,649) | 0 | 0
Payment of debt costs | (4,512) | (5,582) | (75)
Proceeds from issuance of common stock | 185,223 | 540,560 | 17,692
Proceeds from issuance of preferred stock | 287,500 | 0 | 0
Redemption of preferred stock | (92,000) | 0 | 0
Payment of common stock dividends | (167,495) | (133,720) | (125,391)
Noncontrolling interest distributions | 0 | (45) | (861)
Noncontrolling interest contributions | 0 | 41 | 43
Stock issuance costs | (12,237) | (19,328) | (1)
Net cash provided by financing activities | 373,623 | 569,156 | 19,169
Net increase (decrease) in cash and cash equivalents | (6) | 34 | (13,177)
Cash and cash equivalents at beginning of year | 2,082 | 2,048 | 15,225
Cash and cash equivalents at end of year | 2,076 | 2,082 | 2,048
Supplemental disclosure of cash flow information: |  |  |
Interest paid, net of amount capitalized | 75,283 | 63,474 | 62,386
Taxes paid (received) | 201 | (561) | 472
Supplemental disclosure of noncash investing and financing activities: |  |  |
Issued 398,578, 141,351 and 392,474 shares of restricted and unrestricted common stock in 2012, 2011 and 2010, respectively, pursuant to NNN’s performance incentive plan | 8,638 | 3,456 | 6,889
Issued 16,078, 9,632 and 10,092 shares of common stock in 2012, 2011 and 2010, respectively, to directors pursuant to NNN’s performance incentive plan | 463 | 250 | 236
Issued 19,212, 26,023 and 25,066 shares of common stock in 2012, 2011 and 2010, respectively, pursuant to NNN’s Deferred Director Fee Plan | 298 | 449 | 401
Surrender of 15,286 and 5,215 shares of restricted common stock in 2012 and 2011, respectively | 357 | 109 | 0
Change in other comprehensive income | 1,448 | (5,491) | 1,150
Change in lease classification (direct financing lease to operating lease) | 1,678 | 3,407 | 0
Note and mortgage receivable accepted in connection with real estate transactions | 0 | 0 | 5,950
Mortgages payable assumed in connection with real estate transactions | 6,634 | 0 | 5,432
Real estate acquired in connection with mortgage receivable foreclosure | 490 | 0 | 6,250
Real estate received in note receivable foreclosure | 1,595 | 0 | 0
Series C Preferred Stock [Member] |  |  |
Cash flows from financing activities: |  |  |
Payment of preferred stock dividends | (1,979) | (6,785) | (6,785)
Series D Preferred Stock [Member] |  |  |
Cash flows from financing activities: |  |  |
Payment of preferred stock dividends | $ (15,449) | $ 0 | $ 0

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- Definition The charge against earnings to reduce the carrying value of an interest continued to be held by the transferor in a securitized financial instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 40 -Section 35 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=16385214&loc=d3e44297-111616 + Details
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- Definition The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 95-13 -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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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18, 19, 20 -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. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3291-108585 + Details
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- Definition The cash outflow from the acquisition of a piece of land held for sale, anything permanently fixed to it, including buildings, structures on it, and so forth. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3213-108585 + Details
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- Definition The cash outflow to return capital to noncontrolled interest, which generally occurs when noncontrolling shareholders reduce their ownership stake (in a subsidiary of the entity). This element does not include dividends paid to noncontrolling shareholders. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph a -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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -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. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3291-108585 + Details
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- Definition The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3291-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b -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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- Definition The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3291-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b -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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- Definition The cash outflow for a borrowing supported by a written promise to pay an obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3291-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b -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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- Definition The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3291-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b -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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- Definition Difference between actual rental income due and rental income recognized on a straight-line basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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