The following table presents information necessary to calculate net income per share for the three and nine months ended September 30, 2013 and 2012 as well as potentially dilutive securities excluded from the weighted average number of diluted common shares outstanding because their inclusion would have been anti-dilutive (in thousands, except per share amounts):


	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
BASIC EPS:
Net income	$	74,420		$	50,806		$	171,418		$	240,618
Adjust for income attributed to holders of non-vested restricted stock		(808	)		(462	)		(1,660	)		(2,040	)

Income attributed to common stockholders	$	73,612		$	50,344		$	169,758		$	238,578

Weighted average number of common shares outstanding, excluding non-vested shares of restricted stock		144,446			149,846			144,915			152,570

Basic net income per common share	$	0.51		$	0.34		$	1.17		$	1.56

DILUTED EPS:
Income attributed to common stockholders	$	73,612		$	50,344		$	169,758		$	238,578
Add incremental earnings related to potential common shares		5			—			—			—

Adjusted income attributed to common stockholders	$	73,617		$	50,344		$	169,758		$	238,578

Weighted average number of common shares outstanding, excluding non-vested shares of restricted stock		144,446			149,846			144,915			152,570
Add dilutive effect of potential common shares		986			676			925			496

Weighted average number of diluted common shares outstanding		145,432			150,522			145,840			153,066

Diluted net income per common share	$	0.51		$	0.33		$	1.16		$	1.56

Potentially dilutive securities excluded as anti-dilutive		2,897			5,538			4,043			5,498