Quarterly Results of Operations (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2013

Quarterly Results of Operations (Tables) [Abstract]

Summary of Unaudited Quarterly Results of Operations

		Year Ended December 31, 2013
		1st Quarter		2nd Quarter(2)		3rd Quarter		4th Quarter
Revenues - as reported		$	633,915	$	682,125	$	786,930	$	788,577
Discontinued operations			(4,129)		(3,592)		(3,217)		-
Revenues - as adjusted(1)		$	629,786	$	678,533	$	783,713	$	788,577
Net income (loss) attributable to common stockholders		$	55,058	$	(8,508)	$	20,691	$	11,473
Net income (loss) attributable to common stockholders per share:
	Basic	$	0.21	$	(0.03)	$	0.07	$	0.04
	Diluted		0.21		(0.03)		0.07		0.04
		Year Ended December 31, 2012
		1st Quarter		2nd Quarter		3rd Quarter(3)		4th Quarter
Revenues - as reported		$	435,359	$	453,082	$	474,139	$	500,663
Discontinued operations			(21,559)		(17,821)		(15,120)		(3,699)
Revenues - as adjusted(1)		$	413,800	$	435,261	$	459,019	$	496,964
Net income attributable to common stockholders		$	39,307	$	54,735	$	37,269	$	90,576
Net income attributable to common stockholders per share:
	Basic	$	0.20	$	0.26	$	0.17	$	0.35
	Diluted		0.19		0.25		0.16		0.35
(1) We have reclassified the income attributable to the properties sold prior to or held for sale at December 31, 2013 to discontinued operations. See Note 5.
(2) The decrease in net income and amounts per share are primarily attributable to gains on sales of real estate of $82,492,000 for the first quarter as compared to losses of $29,997,000 for the second quarter.
(3) The decrease in net income and amounts per share are primarily attributable to gains on sales of real estate of $32,450,000 for the second quarter as compared to $12,827,000 for the third quarter.