Income (Loss) Per Share (Tables)

9 Months Ended

Sep. 30, 2014

Earnings Per Share

Schedule of common stock equivalents excluded in the calculation of diluted loss per share

	Three Months ended September 30,		Nine Months ended September 30,
	2014	2013	2014	2013
	(unaudited)		(unaudited)
Shares underlying Convertible Senior Secured Notes	—	16,983,531	—	9,393,821
Warrants to purchase common stock	—	13,561	—	12,924
Stock options, stock appreciation rights, and non-vested stock options	—	166,531	—	159,808

Schedule of computation of basic and diluted net income per share

	Three Months ended			Nine Months ended
	September 30, 2014			September 30, 2014
	(unaudited)
Numerator, in thousands:
Net income used for calculation of basic EPS	$	27,858		$	15,516
Interest expense on convertible debt	1,289			3,774
Changes in fair value of derivative liabilities	(760		)	(2,115		)
Loss on extinguishment of outstanding debt, as if converted	(8,496		)	(10,497		)
Total adjustments	(7,967		)	(8,838		)
Net income used for calculation of diluted EPS	$	19,891		$	6,678
Denominator:
Weighted average shares outstanding, basic	42,900,269			42,035,025
Effect of dilutive potential common shares:
Shares underlying Convertible Senior Secured Notes and interst make-whole	7,576,541			7,995,340
Warrants to purchase common stock	20,857			20,905
Stock options, stock appreciation rights, and non-vested stock options	327,966			326,916
Total potential dilutive common shares	7,925,364			8,343,161
Weighted average shares outstanding, diluted	50,825,633			50,378,186
Net income per share, basic	$	0.65		$	0.37
Net income per share, diluted	$	0.39		$	0.13