A reconciliation of the basic and diluted net income (loss) per share computations for the years ended December 31, 2012, 2011 and 2010 is as follows (in thousands, except per share data):

	For the years ended December 31,

	2012						2011				2010
	Basic			Diluted			Basic		Diluted		Basic			Diluted
Numerator:
Income (loss) from continuing operations	$	(1,065,555	)	$	(1,065,555	)	$	363,598	$	363,598	$	389,425		$	389,425

Income (loss) from discontinued operations	$	5,180		$	5,180		$	—	$	—	$	(3,628	)	$	(3,628	)

Denominator:
Average number of common shares outstanding		62,536			62,536			60,257		60,257		53,179			53,179
Effect of dilutive securities
Stock awards and warrants(a)		—			—			—		354		—			521

		62,536			62,536			60,257		60,611		53,179			53,700

Income (loss) from continuing operations	$	(17.04	)	$	(17.04	)	$	6.03	$	6.00	$	7.32		$	7.25
Income (loss) from discontinued operations		0.08			0.08			—		—		(0.07	)		(0.07	)

Net income (loss) per share	$	(16.96	)	$	(16.96	)	$	6.03	$	6.00	$	7.25		$	7.18

(a): Stock awards represent the weighted average number of shares of common stock issuable on the exercise of dilutive employee stock options and restricted stock units, less the number of shares of common stock which could have been purchased with the proceeds from the exercise of such stock awards. These purchases were assumed to have been made at the average market price of the common stock for the period. In periods of net loss, the number of shares used to calculate diluted earnings per share is the same as basic earnings per share; therefore, the effect of dilutive securities is zero for such periods. The weighted average number of stock options outstanding of 238,210, 31,511, and 25,177 for the years ended December 31, 2012, 2011 and 2010, respectively, were excluded because their effect would have been anti-dilutive. Warrants outstanding in 2011 entitle the holder to receive cash and shares of common stock upon exercise.