Equity Incentive Plans and Employee Stock Purchase Plan (Tables)

9 Months Ended

Oct. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

The following table summarizes stock option activity for the nine months ended October 31, 2018 (in thousands, except share and per share data and years):



	Shares		Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Term (In Years)	Aggregate Intrinsic Value
Balance - January 31, 2018	12,637,435		$	7.63	7.72	$	246,227
Stock options exercised	(2,540,312	)	6.92
Stock options forfeited and expired	(640,584	)	8.43
Balance - October 31, 2018	9,456,539		7.76		7.04	697,319
Vested and exercisable - January 31, 2018	5,540,858		6.33		6.63	115,122
Vested and exercisable - October 31, 2018	5,377,483		$	6.89	6.29	$	401,189

Schedule of restricted stock unit activity

The following table summarizes RSU activity for the nine months ended October 31, 2018:



	Shares		Weighted-Average Grant Date Fair Value per RSU
Unvested - January 31, 2018	245,746		$	26.20
RSUs granted	1,718,364		47.90
RSUs vested	(138,812	)	34.73
RSUs forfeited and canceled	(67,167	)	39.25
Unvested - October 31, 2018	1,758,131		$	46.24

Schedule of stock-based compensation expense recognized in consolidated statements of operations

Total stock-based compensation expense recognized in the Company’s interim unaudited condensed consolidated statements of operations is as follows (in thousands):



	Three Months Ended October 31,				Nine Months Ended October 31,
	2018		2017		2018		2017
Cost of revenue—subscription	$	555	$	183	$	1,403	$	503
Cost of revenue—services	335		123		800		292
Sales and marketing	3,090		1,704		7,437		4,400
Research and development	3,131		1,505		8,241		4,072
General and administrative	3,153		2,184		8,969		5,799
Total stock-based compensation expense	$	10,264	$	5,699	$	26,850	$	15,066