Net Loss per Share Attributable to Common Stockholders (Tables)

12 Months Ended

Jan. 31, 2017

Summary of Computation of Basic and Diluted Net Loss per Share Attributable to Common Stockholders

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



	Year Ended January 31,
	2015			2016			2017
Net loss	$	(183,231	)	$	(213,752	)	(245,066		)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted	27,925			82,460			194,714
Net loss per share attributable to common stockholders, basic and diluted	$	(6.56	)	$	(2.59	)	$	(1.26	)

Summary of Weighted-average Outstanding Shares Excluded from Computation of Diluted Net Loss per Share Attributable to Common Stockholders

The following weighted-average outstanding shares of common stock equivalents were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented because including them would have been anti-dilutive (in thousands):



	Year Ended January 31,
	2015	2016	2017
Convertible preferred stock (on an if-converted basis)	117,794	—	—
Stock options to purchase common stock	50,429	61,795	63,984
Restricted stock units	—	—	5,216
Employee stock purchase plan	—	170	1,310
Early exercised stock options	8,047	3,618	2,106
Total	176,270	65,583	72,616