Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2012

Computation of Basic and Diluted Earnings per Share

The following table sets forth the computation of basic and diluted earnings per share for the periods indicated.

	Three months ended June 30,						Six months ended June 30,
	2012			2011 (Restated, see Note  2)			2012			2011 (Restated, see Note  2)
Net loss	$	(93,649	)	$	(3,333	)	$	(33,465	)	$	(5,367	)
Weighted average shares of common stock outstanding (used to calculate basic EPS)		76,210			72,479			74,547			71,846
Net effect of dilutive employee stock options based on the treasury stock method		234			116			226			129
Weighted average shares of common stock outstanding (used to calculate diluted EPS)		76,444			72,595			74,773			71,975
Net income / (loss) per common share - basic	$	(1.23	)	$	(0.05	)	$	(0.45	)	$	(0.07	)
Net income / (loss) per common share - diluted	$	(1.23	)	$	(0.05	)	$	(0.45	)	$	(0.07	)