Net Income (Loss) Per Share (Tables)

6 Months Ended

Jun. 30, 2014

Schedule of Earnings Per Share, Basic and Diluted

Basic net income (loss) per share was calculated by dividing net income (loss) by the weighted average number of common shares outstanding for the three and six months ended June 30, 2014 and 2013. Diluted net income per share for the three months ended June 30, 2013, was calculated by adjusting outstanding shares for the dilutive effects of outstanding, but unexercised, stock options and unvested restricted stock, as calculated under the treasury stock method.



	Three Months Ended					Six Months Ended
	June 30,					June 30,
	2014			2013		2014			2013
Net income (loss)	$	(8,993	)	$	5,670	$	(3,698	)	$	(3,665	)
Weighted average shares- basic	62,699			62,330		62,403			62,260
Weighted average shares- diluted	62,699			65,496		62,403			62,260
Net income (loss) per share- basic	$	(0.14	)	$	0.09	$	(0.06	)	$	(0.06	)
Net income (loss) per share- diluted	$	(0.14	)	$	0.09	$	(0.06	)	$	(0.06	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following outstanding Company securities were included in the above calculations of net income per share because their impact was dilutive:



	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2014	2013	2014	2013
Common stock options	—	2,580	—	—
Restricted stock awards	—	393	—	—
Restricted stock units	—	193	—	—
Total	—	3,166	—	—

The following outstanding Company securities were excluded from the above calculations of net income (loss) per share because their impact would have been anti-dilutive:



	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2014	2013	2014	2013
Common stock options	1,813	387	1,917	2,727
Restricted stock awards	420	—	422	397
Restricted stock units	143	5	202	189
Total	2,376	392	2,541	3,313

As discussed in Note 6, in December 2013, the Company issued $86.3 million aggregate principal amount of 2.25% convertible senior notes due 2018 (the “Notes”) in an underwritten public offering. Upon any conversion the Notes may be settled, at the Company’s election, in cash, shares of the Company’s common stock or a combination of cash and shares of the Company’s common stock. For purposes of calculating the maximum dilutive impact, it is presumed that the Notes will be settled in common stock with the resulting potential common shares included in diluted earnings per share if the effect is more dilutive. The effect of the conversion of the Notes is excluded from the calculation of dilutive earnings per share because the impact of these securities would be anti-dilutive. The potential dilutive effect of these securities is shown in the chart below:



	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2014	2013	2014	2013
Conversion of the Notes	3,588	—	3,588	—