Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2013

Earnings Per Share [Abstract]

Computation of basic and diluted earnings per common share

The following table shows the amounts used in computing our basic and diluted earnings per common share:

	For the Year Ended December 31,
	2013			2012		2011
	(In thousands, except per share amounts)
Numerator for basic and diluted earnings per share:
Income from continuing operations attributable to common stockholders	$	488,930		$	307,835	$	362,308
Discontinued operations	(35,421		)	54,965		2,185
Net income attributable to common stockholders	$	453,509		$	362,800	$	364,493
Denominator:
Denominator for basic earnings per share—weighted average shares	292,654			292,064		228,453
Effect of dilutive securities:
Stock options	534			496		449
Restricted stock awards	99			92		53
OP units	1,823			1,836		942
Convertible notes	—			—		893
Denominator for diluted earnings per share—adjusted weighted average shares	295,110			294,488		230,790
Basic earnings per share:
Income from continuing operations attributable to common stockholders	$	1.67		$	1.05	$	1.59
Discontinued operations	(0.12		)	0.19		0.01
Net income attributable to common stockholders	$	1.55		$	1.24	$	1.60
Diluted earnings per share:
Income from continuing operations attributable to common stockholders	$	1.66		$	1.04	$	1.57
Discontinued operations	(0.12		)	0.19		0.01
Net income attributable to common stockholders	$	1.54		$	1.23	$	1.58