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Equity (Tables)
 3 Months Ended
Apr. 30, 2023
Share-Based Payment Arrangement [Abstract]  
Schedule of Shares Reserved For Future Issuance The Company had reserved shares of common stock for future issuance as follows (in thousands):
April 30, 2023January 31, 2023
2012 Equity Incentive Plan:
Options outstanding32,786 35,212 
Restricted stock units outstanding2,048 2,521 
2020 Equity Incentive Plan:
Options outstanding642 642 
Restricted stock units outstanding18,496 13,039 
Shares available for future grants62,996 52,989 
2020 Employee Stock Purchase Plan:
Shares available for future grants13,967 11,046 
Total shares of common stock reserved for future issuance130,935 115,449 
Class of Treasury Stock
The following table summarizes the stock repurchase activity under the Company’s stock repurchase program (in thousands, except per share data):

Three Months Ended April 30, 2023
Number of shares repurchased1,405 
Weighted-average price per share(1)
$136.39 
Aggregate purchase price(1)
$191,694 
________________
(1)Includes transaction costs associated with the repurchases.
Option Activity Rollforward
A summary of stock option activity and activity regarding shares available for grant under the Plans during the three months ended April 30, 2023 is as follows:

Shares
Available for Grant
(in thousands)		Number of Options Outstanding
(in thousands)		Weighted-
Average
Exercise Price		Weighted-Average Remaining Contractual Life
(in years)		Aggregate
Intrinsic
Value
(in thousands)
Balance—January 31, 2023
52,989 35,854 $11.27 5.9$5,237,549 
Shares authorized16,165 — 
Options exercised— (2,376)$6.45 
Options canceled50 (50)$5.38 
RSUs granted(7,318)— 
Shares withheld related to net share settlement of RSUs638 — 
RSUs forfeited472 — 
Balance—April 30, 2023
62,996 33,428 $11.63 5.7$4,599,537 
Vested and exercisable as of April 30, 2023
30,487 $8.69 5.6$4,259,886 
Option Rollforward Schedule
A summary of stock option activity and activity regarding shares available for grant under the Plans during the three months ended April 30, 2023 is as follows:

Shares
Available for Grant
(in thousands)		Number of Options Outstanding
(in thousands)		Weighted-
Average
Exercise Price		Weighted-Average Remaining Contractual Life
(in years)		Aggregate
Intrinsic
Value
(in thousands)
Balance—January 31, 2023
52,989 35,854 $11.27 5.9$5,237,549 
Shares authorized16,165 — 
Options exercised— (2,376)$6.45 
Options canceled50 (50)$5.38 
RSUs granted(7,318)— 
Shares withheld related to net share settlement of RSUs638 — 
RSUs forfeited472 — 
Balance—April 30, 2023
62,996 33,428 $11.63 5.7$4,599,537 
Vested and exercisable as of April 30, 2023
30,487 $8.69 5.6$4,259,886 
Schedule of Unvested RSU Rollforward
A summary of RSU activity, inclusive of PRSU activity, during the three months ended April 30, 2023 is as follows:

Number of Shares
(in thousands)		Weighted-Average Grant Date
Fair Value
per Share
Unvested Balance—January 31, 2023
15,560 $181.17 
Granted(1)
7,318 $143.56 
Vested(1,862)$188.47 
Forfeited(472)$179.39 
Unvested Balance—April 30, 2023
20,544 $167.15 
________________
(1)Includes 0.5 million PRSUs granted at 120% of the target number of PRSUs, which represents the maximum number of PRSUs that may be earned and eligible to vest with respect to these awards over their full term.
Schedule of Unvested RSA Rollforward A summary of restricted common stock activity during the three months ended April 30, 2023 is as follows:
Outside of the Plans
Number of Shares
(in thousands)		Weighted-Average Grant Date
Fair Value
per Share
Unvested Balance—January 31, 2023
428 $219.26 
Vested(142)$199.28 
Unvested Balance—April 30, 2023
286 $229.13 
Valuation Assumptions Schedule The following table summarizes the assumptions used in estimating the fair value of stock options granted to employees during the three months ended April 30, 2022:
Three Months Ended April 30, 2022
Expected term (in years)6.0
Expected volatility50.0 %
Risk-free interest rate1.8 %
Expected dividend yield— %
Valuation Assumptions Other Than Stock Options Schedule
The following table summarizes the assumptions used in estimating the fair value of employee stock purchase rights granted under the 2020 ESPP during the three months ended April 30, 2023 and 2022:

Three Months Ended April 30,
20232022
Expected term (in years)0.50.5
Expected volatility71.3 %58.9 %
Risk-free interest rate4.7 %0.9 %
Expected dividend yield— %— %
Share-based Compensation Schedule
Stock-based compensation included in the condensed consolidated statements of operations was as follows (in thousands):
Three Months Ended April 30,
20232022
Cost of revenue$30,462 $22,635 
Sales and marketing72,295 52,469 
Research and development136,417 73,593 
General and administrative25,335 23,796 
Stock-based compensation, net of amounts capitalized264,509 172,493 
Capitalized stock-based compensation11,719 6,495 
Total stock-based compensation$276,228 $178,988