Business Combinations (Notes)

12 Months Ended

Dec. 31, 2011

Business Combinations [Abstract]

Business Combination Disclosure [Text Block]

Business Combinations:

In connection with the default of a note receivable and certain lease agreements between NNN and one of its tenants, in June 2009, NNN acquired the operations of an auto service business that operated certain Properties. The note foreclosure resulted in a loss of $7,816,000. NNN recorded the value of the assets received at fair value. No liabilities were assumed. The fair value of the assets resulted in goodwill of $3,400,000. In connection with the annual review of goodwill for impairment, NNN recognized a noncash impairment charge of $1,500,000 and $1,900,000 included in Impairment losses and other charges, net of recoveries in the Consolidated Statements of Earnings during the years ended December 31,2011 and 2010, respectively.