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Earnings per share (Tables)

12 Months Ended

Dec. 31, 2014

Earnings per share

Schedule of computation of basic and diluted net loss per share for common stockholders

		Year ended December 31
		2014			2013			2012
Numerator
Net (loss) income		$	(93,753	)	$	(51,574	)	$	(26,235	)
Deemed dividend			—			(18,249	)		—
Gain on exchange of convertible preferred stock in connection with recapitalization			—			3,391			159,954
Less beneficial conversion charge			—			—			(378	)
Less net income attributable to participating preferred stock			—			—			(132,610	)
​	​	​	​	​	​	​	​	​	​	​
Net (loss) income attributable to common stockholders		$	(93,753	)	$	(66,432	)	$	731
​	​	​	​	​	​	​	​	​	​	​
Denominator
Denominator for basic earnings per share			31,565,310			12,829,411			3,328
Effect of dilutive securities:
Employee stock options			—			—			—
Series 3 convertible preferred stock			—			—			13,877
​	​	​	​	​	​	​	​	​	​	​
Denominator for diluted earnings per share			31,565,310			12,829,411			17,205
​	​	​	​	​	​	​	​	​	​	​
Net (loss) income per share:
Basic		$	(2.97	)	$	(5.18	)	$	219.76
​	​	​	​	​	​	​	​	​	​	​
Diluted		$	(2.97	)	$	(5.18	)	$	42.50
​	​	​	​	​	​	​	​	​	​	​

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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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