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Equity Incentive Plans and Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock-Based Compensation
Total stock-based compensation expense is as follows for the periods indicated (in thousands):

Three months ended September 30,Nine months ended September 30,
2023202220232022
Operations and support$1,307 $1,333 $6,588 $3,305 
General and administrative3,289 4,110 15,422 12,130 
Research and development475 855 3,022 2,441 
Sales and marketing(147)107 330 263 
Total stock-based compensation expense$4,924 $6,405 $25,362 $18,139 
Schedule of Key Assumptions used to Determine Fair Value of Stock Options
The following table summarizes the key assumptions used to determine the fair value of the Company’s stock options granted to employees, non-employees, officers, and directors:

Three months ended September 30,Nine months ended September 30,
2023202220232022
Expected term (in years)
6.15 - 6.16
6.07
6.15 - 6.22
4.09 - 6.07
Expected volatility
51.2%
50.0 %
 50.4% - 51.2%
50.0% - 55.4%
Dividend yield— %— %— %— %
Risk-free interest rate
4.39% - 4.40%
2.89 %
 3.50% - 4.40%
1.79% - 2.93%
Weighted-average grant-date fair value per share
$4.00 - $5.41
$17.47 - $25.98
 $4.00 - $13.89
$17.47 - $42.60