Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2012

Reconciliation Between Basic and Diluted Earnings Per Share

A reconciliation between basic and diluted earnings per share is as follows (in thousands, except per share data):

	Quarter Ended March 31,
	2012		2011
Net income for basic and diluted earnings per share	$	46,964	$	78,410
Weighted-average common shares outstanding		217,584		216,511
Dilutive effect of stock options and restricted stock awards		1,646		3,115
Diluted weighted-average shares outstanding		219,230		219,626
Basic earnings per share	$	0.22	$	0.36
Diluted earnings per share	$	0.21	$	0.36