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
	Jun. 30, 2014 property sqft states	Jun. 30, 2013	Jun. 30, 2014 property sqft states	Jun. 30, 2013
Accounting Policies [Abstract]
Total properties	1,927		1,927
Gross leasable area (square feet)	20,751,000		20,751,000
States	47		47
Capitalized interest	$ 487	$ 321	$ 921	$ 540