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Stock-Based Compensation (Tables)
 3 Months Ended
Mar. 31, 2022
Share-based Payment Arrangement [Abstract]  
Schedule of Stock-Based Compensation Expense
Stock-based compensation expense is included in the following line items in the condensed consolidated statements of operations (in thousands):
 Three Months Ended
March 31,
 20222021
Sales and marketing$1,058 $808 
General and administrative3,235 2,080 
Research and development7,817 5,000 
Total stock-based compensation expense$12,110 $7,888 

The following table summarizes the components of non-cash stock-based compensation expense (in thousands):
 Three Months Ended
March 31,
 20222021
Stock options and assumed options$778 $617 
Restricted stock units11,284 7,224 
Employee stock purchase plan48 47 
Total stock-based compensation expense$12,110 $7,888 
Tax windfall benefit from stock-based awards$529 $2,560