Net Loss Per Share

9 Months Ended

Sep. 30, 2015

Net loss per share was calculated by dividing net loss by the weighted average number of common shares outstanding for the three and nine months ended September 30, 2015 and 2014.



	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2015			2014			2015			2014
Net loss	$	(10,917	)	$	(13,938	)	$	(35,131	)	$	(17,636	)
Shares used in computing basic and diluted net loss per share	67,810			65,494			67,568			63,444
Basic and diluted net loss per share	$	(0.16	)	$	(0.21	)	$	(0.52	)	$	(0.28	)

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		Nine Months Ended
	September 30,		September 30,
	2015	2014	2015	2014
Common stock options	1,600	1,816	1,739	1,881
Restricted stock awards	135	240	133	360
Restricted stock units	207	162	247	191
Total	1,942	2,218	2,119	2,432

As discussed in Note 6, in December 2013, the Company issued $86.3 million in 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		Nine Months Ended
	September 30,		September 30,
	2015	2014	2015	2014
Conversion of the Notes	3,588	3,588	3,588	3,588

The effect of the contingently issuable common stock is excluded from the calculation of basic net loss per share until all necessary conditions for issuance have been satisfied. Refer to Note 9 of the Notes to the Condensed Consolidated Financial Statements for further discussion.