Stockholders' Equity and Equity Incentive Plans (Tables)

12 Months Ended

Jan. 31, 2025

Equity [Abstract]

Schedule of Stock by Class Reserved for Future Issuance

We have the following shares of Class A common stock reserved for future issuance:

	As of January 31,
	2025	2024
Stock options outstanding	2,394,918	3,314,228
RSUs outstanding	23,870,513	26,040,557
ESPP purchase rights outstanding	2,311,567	2,086,604
Remaining shares available for future issuance under the 2011 and 2019 plan	56,022,675	50,559,254
Remaining shares available for future issuance under the ESPP	18,807,595	14,712,385
Total shares of Class A common stock reserved	103,407,268	96,713,028

Schedule of Stock Option Activity Under Equity Incentive Plan

A summary of stock option activity under our equity incentive plan and related information is as follows:

	Stock Options
	Outstanding Stock Options	Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value
	(in thousands, except share, life and per share data)
Outstanding as of January 31, 2024	3,314,228	$	8.21	3.9	$	189,921
Exercised	(908,844)	$	5.08		$	62,063
Canceled/forfeited/expired	(10,466)	$	93.57
Outstanding and Exercisable as of January 31, 2025	2,394,918	$	9.02	2.6	$	187,284

Schedule of Restricted Stock Units (RSUs) Activity Under Equity Incentive Plan

A summary of RSU activity under our equity incentive plan and related information is as follows:

	RSUs
	Unvested RSUs	Weighted-Average Grant Date Fair Value Per Share
Unvested as of January 31, 2024	26,040,557	$	83.14
Granted	13,811,816	$	67.30
Vested	(12,095,006)	$	85.54
Forfeited	(3,886,854)	$	78.72
Unvested as of January 31, 2025	23,870,513	$	73.48

Schedule of Assumptions for Estimating Fair Value of ESPP Purchase Rights

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

	Year Ended January 31,
	2025	2024	2023
Expected term (years)	0.5 - 2.0	0.5 - 2.0	0.5 - 2.0
Expected volatility	28.4% - 43.3%	30.0% - 57.6%	57.6% - 64.6%
Risk-free interest rate	4.2% - 5.4%	4.6% - 5.4%	2.2% - 4.8%
Expected dividend yield	—	—	—

Schedule of Stock-based Compensation Expense

The stock-based compensation expense by line item in the accompanying consolidated statements of operations is summarized as follows:

	Year Ended January 31,
	2025		2024		2023
	(in thousands)
Cost of revenue	$	124,561	$	143,798	$	174,546
Research and development	333,767		336,309		361,720
Sales and marketing	319,631		381,298		532,371
General and administrative	153,350		195,756		217,115
Total stock-based compensation expense	931,309		1,057,161		1,285,752
Benefit from income taxes	(176,463)		(197,068)		(199,971)
Total stock-based compensation expense recorded to net income	$	754,846	$	860,093	$	1,085,781