The following table presents information necessary to calculate net income per share for the three months ended March 31, 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 March 31,
	2013			2012
BASIC EPS:
Net income	$	56,230		$	97,274
Adjust for income attributed to holders of non-vested restricted stock		(482	)		(742	)

Income attributed to common stockholders	$	55,748		$	96,532

Weighted average number of common shares outstanding, excluding non-vested shares of restricted stock		144,827			154,625

Basic net income per common share	$	0.38		$	0.62

DILUTED EPS:
Income attributed to common stockholders	$	55,748		$	96,532
Add incremental earnings related to potential common shares		6			—

Adjusted income attributed to common stockholders	$	55,754		$	96,532

Weighted average number of common shares outstanding, excluding non-vested shares of restricted stock		144,827			154,625
Add dilutive effect of potential common shares		1,956			776

Weighted average number of diluted common shares outstanding		146,783			155,401

Diluted net income per common share	$	0.38		$	0.62

Potentially dilutive securities excluded as anti-dilutive		1,874			3,229