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Stockholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2024
Equity [Abstract]  
Schedule of Common Stock Reserved for Future Issuance
Shares of common stock reserved for future issuance related to outstanding equity awards and employee equity incentive plans as of December 31, 2024, were as follows (in thousands):
Common Stock Reserved
Stock options outstanding860 
RSUs (including PRSUs) outstanding5,829 
Shares available for future grant under 2014 Plan15,506 
Shares available for future issuance under ESPP4,298 
Total shares of common stock reserved26,493 
Schedule of Stock Option Activities
A summary of the Company’s stock option activity during the year ended December 31, 2024 is as follows (in thousands, except years and per share data):
Number of SharesWeighted
Average
Exercise
Price		Weighted
Average
Remaining
Contractual
Life
(Years)
Aggregate
Intrinsic
Value (1)
Outstanding as of December 31, 2023918 $55.96 
Options granted0 0.00 
Options exercised(26)18.93 
Options forfeited or expired(32)100.86 
Outstanding as of December 31, 2024860 55.34 3.7$10,348 
Vested and expected to vest as of December 31, 2024860 55.34 3.710,348 
Exercisable as of December 31, 2024837 53.35 3.610,348 
(1) The aggregate intrinsic value amounts are computed based on the difference between the exercise price of the
stock options and the fair market value of the Company’s common stock of $40.64 per share as of December     31, 2024 for all in-the-money stock options outstanding.

Following is additional information pertaining to the Company’s stock option activity (in thousands, except per share data):
Year Ended December 31,
202420232022
Weighted average grant date fair value per share of options granted$— $— $50.44 
Intrinsic value of options exercised (1)
901 26,943 45,698 
Total fair value of options vested during the period3,249 5,602 11,421 
Cash received from options exercised481 9,127 8,522 
(1) Intrinsic value of options exercised is the difference between the fair market value of the Company’s common stock at the time of exercise and the exercise price paid.
Schedule of RSU Activities
A summary of RSU activity (including PRSUs) during the year ended December 31, 2024 is as follows (in thousands, except per share data):
Number of SharesWeighted Average Grant Date Fair Value Per Share
Outstanding as of December 31, 20234,076 $83.25 
RSUs granted(1)
4,433 46.32 
RSUs vested and released(2,093)79.87 
RSUs forfeited or cancelled(587)71.10 
Outstanding as of December 31, 20245,829 57.27 
(1) Includes 159,016 PRSUs granted during 2024.
Following is additional information pertaining to the Company’s RSU activity (including PRSUs) (in thousands, except per share data):
Year Ended December 31,
202420232022
Weighted average grant date fair value per share of RSUs granted$46.32 $69.84 $90.51 
Total fair value of RSUs vested during the period167,115 184,443 125,798 
Schedule of Stock-Based Compensation Expense
Stock-based compensation expenses for the years ended December 31, 2024, 2023 and 2022 were as follows (in thousands):         
Year Ended December 31,
202420232022
Cost of revenue$29,825 $38,259 $33,297 
Research and development
37,260 50,430 44,367 
Sales and marketing51,214 66,229 59,300 
General and administrative
48,016 51,374 35,543 
Total stock-based compensation$166,315 $206,292 $172,507 
Schedule of Unrecognized Compensation Expense
As of December 31, 2024, unrecognized stock-based compensation expense by award type and their expected weighted-average recognition periods are summarized in the following table (in thousands, except years).
Stock OptionRSU (excluding PRSUs)PRSUESPP
Unrecognized stock-based compensation expense$1,246 $294,832 $10,376 $2,714 
Weighted-average amortization period0.9 years2.8 years1.4 years0.4 years
Schedule of Valuation Assumptions, Stock Option
The weighted average assumptions used to value stock options granted during the periods presented were as follows:
Stock Options
Year Ended December 31,
202420232022
Expected term (years)——6.0
Volatility——46%
Risk-free interest rate——1.8%
Dividend yield———
The weighted average assumptions used to value PRSUs with market conditions granted during the periods presented were as follows:
PRSUs (Market Conditions)
Year Ended December 31,
202420232022
Expected term (years)2.92.83.0
Volatility49.4%51.1%53.0%
Risk-free interest rate4.5%4.5%3.5%
Dividend yield———
Schedule of Valuation Assumptions for Stock Option Purchase Plan
The weighted average assumptions used to value purchase rights under the 2014 ESPP granted during the periods presented were as follows:
ESPP
Granted In
November 2024May 2024November 2023May 2023November 2022May 2022
Expected term (years)0.50.50.50.50.50.5
Volatility63%41%48%75%59%46%
Risk-free interest rate4.3%5.1%4.8%4.6%2.1%0.2%
Dividend yield——————