Net Loss Per Share (Tables)

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2015			2014			2015			2014
Net loss	$	(13,001	)	$	(8,993	)	$	(24,215	)	$	(3,698	)
Shares used in computing basic and diluted net loss per share	67,615			62,699			67,441			62,403
Basic and diluted net loss per share	$	(0.19	)	$	(0.14	)	$	(0.36	)	$	(0.06	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following outstanding Company securities, using the treasury stock method, were excluded from the above calculations of net loss per share because their impact would have been anti-dilutive:

	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2015	2014	2015	2014
Common stock options	1,812	1,813	1,812	1,917
Restricted stock awards	139	420	137	422
Restricted stock units	269	143	257	202
Total	2,220	2,376	2,206	2,541

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 “Senior Notes”) in an underwritten public offering. Upon any conversion, the Senior 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 Senior 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 Senior Notes is excluded from the calculation of diluted loss 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,
	2015	2014	2015	2014
Conversion of the Notes	3,588	3,588	3,588	3,588