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Net Loss per Share (Tables)

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Summary of Reconciliation of Denominator Used in Calculation of Basic and Diluted Net Loss Per Share

A reconciliation of the denominator used in the calculation of basic and diluted net loss per share is as follows:

		Three Months Ended September 30,								Nine Months Ended September 30,
			2017				2016				2017				2016
Net loss		$	(10,583	)		$	(10,515	)		$	(28,179	)		$	(31,733	)
Weighted-average common shares outstanding — basic			37,047				35,393				36,639				35,038
Dilutive effect of share equivalents resulting from stock options, RSUs, ESPP and the Conversion Option of the 2022 Notes			—				—				—				—
Weighted-average common shares,    outstanding — diluted			37,047				35,393				36,639				35,038
Net loss per share, basic and diluted		$	(0.29	)		$	(0.30	)		$	(0.77	)		$	(0.91	)

Schedule of Potentially Dilutive Common Stock Equivalents

The following table contains all potentially dilutive common stock equivalents.

		As of September 30,
			2017				2016
		(in thousands)
Options to purchase common shares			2,398				2,818
RSUs			2,173				2,364
ESPP			3				5

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- References

No definition available.

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- Definition

Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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