Employee Incentive Plans (Tables)

3 Months Ended

Apr. 30, 2017

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

Schedule of Stock-based Compensation Expense by Award Type

Stock-based compensation expense by award type was as follows (in thousands):

	Three Months Ended April 30,
	2017		2016
Stock options	$	6,025	$	3,369
RSUs	66		—
ESPP	785		—
Restricted stock awards	752		—
Restricted common stock	1,278		—
Total	$	8,906	$	3,369

Schedule of Stock-based Compensation Expense by Statement of Operations Location

Stock-based compensation expense was recorded in the following cost and expense categories in the Company’s condensed consolidated statements of operations (in thousands):

	Three Months Ended April 30,
	2017		2016
Cost of revenue
Subscription	$	686	$	393
Professional services and other	469		273
Research and development	3,301		618
Sales and marketing	2,375		1,354
General and administrative	2,075		731
Total	$	8,906	$	3,369

Schedule of Stock Option Activity

A summary of the Company’s stock option activity and related information is as follows:

	Number of Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value (in thousands)
Outstanding as of January 31, 2017	32,866,862		$	6.01	8.2	$	145,570
Granted	2,596,568		11.03
Exercised	(1,022,650	)	2.75
Canceled	(501,308	)	7.53
Outstanding as of April 30, 2017	33,939,472		$	6.47	8.1	$	664,506
As of April 30, 2017
Vested and exercisable	12,656,317		$	3.57	6.8	$	284,473

Schedule of Black-Scholes Option Pricing Model Estimated Fair Value Assumptions

The Company used the Black-Scholes option pricing model to estimate the fair value of stock options granted with the following assumptions:

	Three Months Ended April 30,
	2017	2016
	(unaudited)
Expected volatility	40.3% - 40.5%	43.4% - 44.3%
Expected term (in years)	6.0 - 6.4	5.8 - 6.1
Risk-free interest rate	2.06% - 2.21%	1.29% - 1.54%
Expected dividend yield	—	—

Schedule of ESPP Black-Scholes Option Pricing Model Estimated Fair Value Assumptions

The Company estimated the fair value of ESPP purchase rights using a Black-Scholes option pricing model with the following assumptions:

	Three Months Ended April 30, 2017
	(unaudited)
Expected volatility	32.8% - 37.4%
Expected term (in years)	0.7 - 1.2
Risk-free interest rate	0.95% - 1.08%
Expected dividend yield	—