Property Acquisitions (Tables)

12 Months Ended

Dec. 31, 2012

Business Combinations [Abstract]

Business Acquisition, Pro Forma Information [Table Text Block]

The following pro forma total revenue and income before discontinued operations for the 2012 acquisitions in aggregate, assumes the acquisitions had taken place on January 1, 2012 for the 2012 pro forma information, and on January 1, 2011 for the 2011 pro forma information (in thousands):

Supplemental pro forma for the year ended December 31, 2012 (1)
Total revenue	$	38,061
Income before discontinued operations	$	15,738
Supplemental pro forma for the year ended December 31, 2011 (1)
Total revenue	$	34,679
Income before discontinued operations	$	15,401

(1) This unaudited pro forma supplemental information does not purport to be indicative of what our operating results would have been had the acquisitions occurred on January 1, 2012 or January 1, 2011 and may not be indicative of future operating results. Various acquisitions were of newly leased or constructed assets and may not have been in service for the full periods shown.