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Stock-based Compensation (Tables)
 9 Months Ended
Sep. 30, 2024
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock Based Compensation Cost We recorded stock-based compensation expense in the following categories in the accompanying unaudited condensed consolidated statements of operations and balance sheets (in thousands):
Three Months Ended September 30,Nine Months Ended September 30,
2024202320242023
Cost of revenue
$1,165 $1,115 $4,505 $3,094 
Sales and marketing
1,864 1,623 5,349 4,602 
Technology and development
6,179 4,706 18,407 13,901 
General and administrative
6,507 8,138 21,225 29,408 
Total stock-based compensation expense
15,715 15,582 49,486 51,005 
Amount capitalized to internal-use software
1,536 1,054 4,580 3,039 
Total stock-based compensation
$17,251 $16,636 $54,066 $54,044 
Schedule of Fair Value Assumptions and Techniques for Performance Shares
The assumptions that were used to calculate the grant-date fair value of our PSU grants during the nine months ended September 30, 2024 using a Monte Carlo simulation model were as follows:
Nine Months Ended September 30,
2024
Expected life (years)
0.4-0.8
Risk-free interest rate
5.2%-5.4%
Expected volatility
47.4%-66.1%
Expected dividend yield
— 
The assumptions that were used to calculate the grant-date fair value of the RSUs with a market vesting condition during the nine months ended September 30, 2024 using a Monte Carlo simulation model were as follows:
Nine Months Ended September 30,
2024
Expected life (years)
5
Risk-free interest rate
4.2 %
Expected volatility
59.4 %
Expected dividend yield
—