Organization And Summary Of Significant Accounting Policies (NNN's Total Comprehensive Income) (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Organization And Summary Of Significant Accounting Policies [Abstract]
Net earnings	$ 22,632	$ 21,210	$ 64,755	$ 58,782
Other comprehensive income (loss)	30	628	(4,700)	661
Comprehensive income including noncontrolling interests	22,662	21,838	60,055	59,443
Comprehensive loss attributable to noncontrolling interests				26
Comprehensive income attributable to NNN	$ 22,662	$ 21,838	$ 60,055	$ 59,469