Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2013

Earnings Per Share

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					Six Months Ended
	June 30,					June 30,
	2013		2012			2013		2012
Net income (loss) for basic and diluted earnings per share	$	24,747	$	(3,653	)	$	100,973	$	43,311
Weighted-average common shares outstanding	219,502		217,866			219,301		217,725
Dilutive effect of stock options, performance share awards and restricted stock awards	1,146		—			1,295		1,492
Diluted weighted-average shares outstanding	220,648		217,866			220,596		219,217
Basic earnings (loss) per share	$	0.11	$	(0.02	)	$	0.46	$	0.20
Diluted earnings (loss) per share	$	0.11	$	(0.02	)	$	0.46	$	0.20