Consolidated Statements Of Cash Flows (Parenthetical)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Cash Flows [Abstract]
Issued shares of common stock pursuant to conversion premium	2,407,911
Issued shares of restricted and unrestricted common stock, pursuant to NNN's performance incentive plan	298,896	398,578	141,351
Issued shares of common stock, to directors pursuant to NNN's performance incentive plan	16,605	16,078	9,632
Issued shares of common stock, pursuant to NNN's Deferred Director Fee Plan	12,308	19,212	26,023
Surrender of shares of restricted stock	241	15,286	5,215