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Equity Incentive Plans (Tables)
 12 Months Ended
Apr. 30, 2025
Share-Based Payment Arrangement [Abstract]  
Fair Value Measurement Inputs and Valuation Techniques
The fair value of the 2022 ESPP offerings was estimated on the offering date using the Black-Scholes option pricing model with the following assumptions:
Year Ended April 30,
20252024
Expected term (in years)0.50.5
Expected stock price volatility
50.4% - 59.2%
47.3% - 63.3%
Risk-free interest rate
4.3% - 4.6%
5.4% - 5.5%
Dividend yield—%—%
The fair value of stock options granted and assumed was estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions:
Year Ended April 30,
202520242023
Expected term (in years)
N/A
N/A
6.02
Expected stock price volatility
N/A
N/A
60.7% - 62.0%
Risk-free interest rate
N/A
N/A
3.1% - 3.4%
Dividend yield
N/A
N/A
—%
Summary of Equity Awards Available for Grant
The equity awards available for grant were as follows: 
Year Ended April 30,
20252024
Available at beginning of fiscal year20,252,732 17,564,133 
Shares authorized
5,085,297 4,868,347 
Options canceled
72,819 104,137 
RSUs granted
(3,177,238)(3,399,494)
RSUs canceled
1,058,155 1,115,609 
Available at end of period23,291,765 20,252,732 
Summary of Stock Option Activity
The following table summarizes stock option activity:
Stock Options Outstanding
Number of
Stock Options
Outstanding
Weighted-
Average
Exercise
Price
Remaining
Contractual
Term
(in years)
Aggregate
Intrinsic
Value
(in thousands)
Balance as of April 30, 20234,038,238 $32.74 5.35$134,778 
Stock options exercised(1,292,375)$16.19 
Stock options canceled(104,137)$98.35 
Stock options assumed in acquisition canceled(1,303)$76.12 
Balance as of April 30, 20242,640,423 $38.23 4.67$178,081 
Stock options exercised(791,874)$22.54 
Stock options canceled(72,819)$113.23 
Stock options assumed in acquisition canceled(7)$76.82 
Balance as of April 30, 20251,775,723 $42.16 3.88$88,617 
Exercisable as of April 30, 20251,692,783 $39.97 3.74$88,120 
Summary of RSU Activity
The following table summarizes RSU activity under the 2012 Plan:
Number of AwardsWeighted-Average Grant Date Fair Value
Outstanding and unvested at April 30, 20237,494,399 $74.52 
RSUs granted3,399,494 $102.23 
RSUs released(2,701,448)$80.51 
RSUs canceled(1,115,609)$75.60 
Outstanding and unvested at April 30, 20247,076,836 $85.38 
RSUs granted
3,177,238 $106.55 
RSUs released(2,672,842)$89.04 
RSUs canceled
(1,058,155)$86.87 
Outstanding and unvested at April 30, 20256,523,077 $93.95 
Summary of Stock-based Compensation Expense Related to Tender Offer Included in Consolidated Statement of Operations
Total stock-based compensation expense recognized in the Company’s consolidated statements of operations was as follows (in thousands):
Year Ended April 30,
202520242023
Cost of revenue
Subscription$9,443 $8,774 $8,308 
Services14,747 12,539 9,435 
Research and development97,412 93,588 80,170 
Sales and marketing86,743 78,069 68,943 
General and administrative49,437 46,167 37,183 
Total stock-based compensation expense$257,782 $239,137 $204,039