Earnings per Share

The following represents a reconciliation from basic earnings per share to diluted earnings per share:



	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands, except per share amounts)	2012			2011			2012			2011
Numerator
Net income	$	57,317		$	45,987		$	78,646		$	64,367
Net income attributable to participating securities	(115		)	(230		)	(236		)	(451		)
Net income available to common shareholders (1)	$	57,202		$	45,757		$	78,410		$	63,916
Denominator
Weighted average common shares outstanding	104,285			102,580			103,909			102,308
Effect of dilutive securities	2,280			1,940			1,929			1,896
Weighted average common shares and dilutive securities outstanding	106,565			104,520			105,838			104,204
Earnings per share - basic	$	0.55		$	0.45		$	0.75		$	0.62
Earnings per share - diluted	$	0.54		$	0.44		$	0.74		$	0.61
(1) Basic weighted average common shares outstanding	104,285			102,580			103,909			102,308
Basic weighted average common shares outstanding and participating securities	104,515			103,116			104,228			103,058
Percentage allocated to common stockholders	99.8		%	99.5		%	99.7		%	99.3		%

Effects of potentially dilutive securities are presented only in periods in which they are dilutive. Stock options and restricted stock units representing 88.5 thousand and 93.0 thousand shares of common stock outstanding for the three months ended September 30, 2012 and 2011, respectively, were excluded from the computation of diluted earnings per share because their effect would have been anti-dilutive. Stock options and restricted stock units representing 141.5 thousand and 117.4 thousand shares of common stock outstanding for the nine months ended September 30, 2012 and 2011, respectively, were excluded from the computation of diluted earnings per share because their effect would have been anti-dilutive.