Net Loss Per Share

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Net Loss Per Share

Net Loss Per Share

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, 2014 and 2013.

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2014			2013			2014			2013
Net loss	$	(13,938	)	$	(8,990	)	$	(17,636	)	$	(12,655	)
Shares used in computing basic and diluted net loss per share	65,494			62,730			63,444			62,407
Basic and diluted net loss per share	$	(0.21	)	$	(0.14	)	$	(0.28	)	$	(0.20	)

The following outstanding Company securities 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,
	2014	2013	2014	2013
Common stock options	1,816	2,390	1,881	2,411
Restricted stock awards	240	398	360	394
Restricted stock units	162	229	191	219
Total	2,218	3,017	2,432	3,024

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		Nine Months Ended
	September 30,		September 30,
	2014	2013	2014	2013
Conversion of the Notes	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.