Equity Incentive Plans and Employee Stock Purchase Plan (Tables)

3 Months Ended

Apr. 30, 2018

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

The following table summarizes stock option activity for the three months ended April 30, 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 granted	—		—
Stock options exercised	(40,723	)	6.36
Repurchase of early exercised shares	—		—
Stock options forfeited and expired	(123,781	)	9.22
Balance - April 30, 2018	12,472,931		7.61		7.44	353,927
Vested and exercisable - January 31, 2018	5,540,858		6.33		6.63	115,122
Vested and exercisable - April 30, 2018	6,236,117		$	6.46	6.51	$	184,152

Schedule of restricted stock unit activity

The following table summarizes RSU activity for the three months ended April 30, 2018:



	Shares		Weighted-Average Grant Date Fair Value per RSU
Unvested - January 31, 2018	245,746		$	26.20
RSUs granted	1,050,660		39.52
RSUs vested	(125	)	28.87
RSUs forfeited and canceled	—		—
Unvested - April 30, 2018	1,296,281		37.00

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 April 30,
	2018		2017
Cost of revenue—subscription	$	359	$	151
Cost of revenue—services	184		72
Sales and marketing	2,218		1,215
Research and development	2,206		1,245
General and administrative	2,610		1,771
Total stock-based compensation expense	$	7,577	$	4,454