Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2013

Computation of Earnings Per Common Share

Following is a summary of the information used in the computation of earnings per common share using the two-class method (in thousands, except per share amounts):


	Three Months Ended
	March 31,
	2013		2012
*Numerator:*
Net income to common shareholders	$	48,576	$	18,495
Net income allocated to participating securities—basic and diluted		902		221

Net income allocated to common shareholders—basic and diluted	$	47,674	$	18,274

*Denominator:*
Weighted-average common shares—basic		84,871		84,741
Dilutive potential common shares		101		701

Weighted average common shares—diluted		84,972		85,442

Earnings per common share:
Basic	$	0.56	$	0.22
Diluted	$	0.56	$	0.21