Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

Selected Quarterly Financial Data (Unaudited)

Summary of unaudited quarterly results of operations

	2012
	First		Second		Third		Fourth
	Quarter		Quarter		Quarter		Quarter
Rental income	$	49,997	$	49,808	$	53,593	$	55,850
Net income	13,059		11,954		11,756		13,191
Net income per common share	0.28		0.25		0.25		0.25
Common distributions declared	0.42		0.42		0.42		0.43

	2011
	First		Second		Third		Fourth
	Quarter		Quarter		Quarter		Quarter
Rental income	$	38,579	$	41,451	$	45,243	$	51,106
Net income	10,254		10,932		11,563		13,248
Net income per common share	0.25		0.27		0.26		0.28
Common distributions declared	0.41		0.42		0.42		0.42

Schedule of amounts previously reported have been adjusted

	2012
	First			Second			Third			Fourth
	Quarter			Quarter			Quarter			Quarter
Rental income as previously reported in 2012	$	50,455		$	50,273		$	54,083		$	56,265
Total revenues reclassified as discontinued operations during the first quarter of 2013	(458		)	(465		)	(490		)	(415		)
Total revenues restated	$	49,997		$	49,808		$	53,593		$	55,850

	2011
	First			Second			Third			Fourth
	Quarter			Quarter			Quarter			Quarter
Rental income as previously reported in 2011	$	39,228		$	42,107		$	45,889		$	51,726
Total revenues reclassified as discontinued operations during the first quarter of 2013	(649		)	(656		)	(646		)	(620		)
Total revenues restated	$	38,579		$	41,451		$	45,243		$	51,106