Employee Incentive Plans (Tables)

3 Months Ended

Apr. 30, 2020

Share-based Payment Arrangement [Abstract]

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,
	2020		2019
	(unaudited)
Cost of revenue
Subscription	$	3,975	$	2,422
Professional services and other	1,811		1,519
Research and development	11,935		6,346
Sales and marketing	11,160		6,786
General and administrative	8,847		5,612
Total	$	37,728	$	22,685

Schedule of Shares of Common Stock Reserved for Future Issuance

Shares of common stock reserved for future issuance were as follows:

	As of
	April 30, 2020
	(unaudited)
Stock options and unvested RSUs outstanding	16,057,236
Available for future stock option and RSU grants	21,816,827
Available for ESPP	4,880,235
	42,754,298

Schedule of Stock Option Activity

A summary of the Company’s stock option activity and related information was 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, 2020	12,359,302		$	11.82	6.2	$	1,436,487
Granted	372,829		142.47
Exercised	(1,449,052	)	9.78
Canceled	(116,086	)	21.22
Outstanding as of April 30, 2020 (unaudited)	11,166,993		$	16.35	6.1	$	1,506,963
As of April 30, 2020
Vested and exercisable (unaudited)	8,283,315		$	9.27	5.7	$	1,176,501

Schedule of Nonvested Restricted Stock Units Activity

A summary of the Company’s RSU activities and related information was as follows:  

	Number of RSUs		Weighted- Average Grant Date Fair Value Per Share
Outstanding as of January 31, 2020	4,893,241		$	77.99
Granted	688,649		125.94
Vested	(517,323	)	67.51
Forfeited	(174,324	)	73.82
Outstanding as of April 30, 2020 (unaudited)	4,890,243		$	86.00