Net Loss Per Share

3 Months Ended

Mar. 31, 2017

Net loss per share was calculated by dividing net loss by the weighted average number of common shares outstanding for the three months ended March 31, 2017 and 2016.



	Three Months Ended
	March 31,
	2017			2016
Net loss	$	(21,314	)	$	(47,671	)
Shares used in computing basic and diluted net loss per share	82,928			76,661
Basic and diluted net loss per share	$	(0.26	)	$	(0.62	)

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
	March 31,
	2017	2016
Common stock options	696	1,023
Restricted stock awards	120	125
Restricted stock units	252	155
Total	1,068	1,303

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 “2.25% Senior Notes”) in an underwritten public offering. In November 2015, the Company also issued $125.0 million aggregate principal amount of 3.25% Convertible Senior Notes due 2020 (the “3.25% Senior Notes”) in an underwritten public offering. Upon any conversion, the 2.25% Senior Notes and/or 3.25% Senior Notes, (collectively 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, the Company 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
	March 31,
	2017	2016
Conversion of the Notes	14,767	14,767

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.