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Stockholders’ Equity and Equity Incentive Plans (Tables)
 3 Months Ended
Apr. 30, 2024
Stockholders' Equity Note [Abstract]  
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)
Balance as of January 31, 20243,314,228 $8.21 3.9$189,921 
Exercised(109,464)$9.28 $6,146 
Canceled/forfeited/expired(1,875)$94.87 
Outstanding and exercisable as of April 30, 2024
3,202,889 $8.12 3.7$172,975 
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
RSUsWeighted-
Average
Grant Date Fair Value Per Share
Unvested as of January 31, 202426,040,557 $83.14 
Granted5,073,584 $64.56 
Vested(4,001,172)$84.99 
Canceled/forfeited(1,099,816)$83.83 
Unvested as of April 30, 202426,013,153 $79.20 
Schedule of Stock-based Compensation Expense by Line Item
The stock-based compensation expense by line item in the accompanying condensed consolidated statements of operations is summarized as follows:
Three Months Ended April 30,
20242023
(in thousands)
Cost of revenue$31,575 $38,089 
Research and development82,569 81,466 
Sales and marketing77,234 112,593 
General and administrative38,047 50,197 
Total stock-based compensation expense$229,425 $282,345 
Benefit from income taxes(43,474)(49,677)
Total stock-based compensation expense recorded to net income$185,951 $232,668