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Organization And Summary Of Significant Accounting Policies (Summary Of NNN's Investment Portfolio) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
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Jun. 30, 2013 properties sqft states | Jun. 30, 2012 | Jun. 30, 2013 properties sqft states | Jun. 30, 2012
Accounting Policies [Abstract] |  |  |  |
Total properties | 1,838 |  | 1,838 |
Gross leasable area (square feet) | 20,218,000 |  | 20,218,000 |
States | 47 |  | 47 |
Capitalized interest | $ 321 | $ 436 | $ 540 | $ 868

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- Details
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- Definition Area of a real estate property. + References No definition available. + Details
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- Definition Amount of interest capitalized during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Allowance for Funds Used during Construction -URI http://asc.fasb.org/extlink&oid=6504829 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 + Details
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- Definition The number of states the entity operates in as of the balance sheet date. + References No definition available. + Details
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