Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2014

Reconciliation of Numerator and Denominator Used in Computing Basic and Diluted Net Loss per Share

The following table provides a reconciliation of the numerator and denominator used in computing basic and diluted net loss per share for the years ended December 31:


	2014			2013			2012
	(In thousands)
Numerator:
Net loss	$	(50,038	)	$	(29,281	)	$	(17,708	)
Accretion of mandatorily redeemable convertible preferred stock		—			(4,653	)		(7,533	)

Net loss attributable to common stockholders	$	(50,038	)	$	(33,934	)	$	(25,241	)

Denominator:
Weighted-average common shares outstanding-basic and diluted		17,839			7,643			355

Outstanding Options, Warrants and Preferred Stock Excluded from Computation of Diluted Net Loss Per Share

The following outstanding options, warrants and preferred stock as of December 31 were excluded from the computation of diluted net loss per share for the periods presented because their effect would have been anti-dilutive:


	2014		2013		2012
	(In thousands)
Options to purchase common stock		3,295		2,113		1,686
Convertible preferred stock (as converted)		—		—		8,631
Convertible preferred stock warrants (as converted)		—		—		607
Common stock warrants		572		618		—