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



	For the Year Ended December 31,
	2012		2011		2010
	(In thousands, except per share amounts)
Numerator for basic and diluted earnings per share:
Income from continuing operations attributable to common stockholders	$	305,573	$	363,133	$	213,444
Discontinued operations	57,227		1,360		32,723
Net income attributable to common stockholders	$	362,800	$	364,493	$	246,167
Denominator:
Denominator for basic earnings per share—weighted average shares	292,064		228,453		156,608
Effect of dilutive securities:
Stock options	496		449		407
Restricted stock awards	92		53		70
OP units	1,836		942		—
Convertible notes	—		893		572
Denominator for diluted earnings per share—adjusted weighted average shares	294,488		230,790		157,657
Basic earnings per share:
Income from continuing operations attributable to common stockholders	$	1.04	$	1.59	$	1.36
Discontinued operations	0.20		0.01		0.21
Net income attributable to common stockholders	$	1.24	$	1.60	$	1.57
Diluted earnings per share:
Income from continuing operations attributable to common stockholders	$	1.04	$	1.57	$	1.35
Discontinued operations	0.19		0.01		0.21
Net income attributable to common stockholders	$	1.23	$	1.58	$	1.56