Net Loss Per Share (Tables)

12 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Computation of Net Loss Per Share Attributable to Common Stockholders, Basic and Diluted

The following table sets forth the computation of net loss per share attributable to common stockholders, basic and diluted (in thousands, except per share amounts):

	Year Ended March 31,
	2015			2014			2013
Numerator:
Net loss	$	(50,149	)	$	(40,225	)	$	(22,541	)
Denominator:
Weighted average shares used to compute net loss per share attributable to common stockholder, basic and diluted		25,290			15,596			15,096
Net loss per share—basic and diluted	$	(1.98	)	$	(2.58	)	$	(1.49	)

Antidilutive Securities Excluded from Computation of Diluted Net Loss per Common Share of Common Stock Equivalents

The following outstanding options, unvested shares, warrants, and convertible preferred stock were excluded (as common stock equivalents) from the computation of diluted net loss per common share for the periods presented as their effect would have been antidilutive (in thousands):

	As of March 31,
	2015		2014		2013
Convertible preferred stock		—		21,357		21,357
Options to purchase common stock		9,422		6,923		4,490
Common stock reserved for issuance in connection with acquisition		129		—		—
Restricted stock units		723		—		—
Warrants		—		49		49
		10,274		28,329		25,896