Stock-Based Compensation (Tables)

3 Months Ended

Apr. 30, 2020

Share-based Payment Arrangement [Abstract]

Schedule of Stock Option Activity

The following table summarizes stock option activity and related information under the Stock Plans:

	Options Outstanding
	Number of Shares	Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic  Value (in thousands)
Balance — January 31, 2020	13,530,363	$	5.96	2.1	$	70,057
Exercised	(154,169)	3.15		—	—
Canceled	(251,319)	12.97		—	—
Balance — April 30, 2020	13,124,875	5.86		1.7	48,971

Schedule of Restricted Stock Activity

The following table summarizes RSU activity and related information under the Stock Plans:

	Restricted Stock Units Outstanding
	Number of RSUs	Weighted-Average Grant Date Fair Value Per Share
Balance — January 31, 2020	38,583,994	$	10.85
Granted	5,500,804	9.00
Canceled	(1,638,338)	11.24
Vested and converted to shares	(5,851,821)	9.81
Balance — April 30, 2020	36,594,639	10.72