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Stock-based Awards
 6 Months Ended
Jun. 30, 2024
Share-Based Payment Arrangement [Abstract]  
Stock-based Awards Stock-based Awards
Stock Options
A summary of the Company’s stock option activity for the six months ended June 30, 2024 is as follows:
 Number of
Options		Weighted-Average Exercise PriceWeighted-Average
Remaining
Contractual Life
   (in years)
Outstanding at December 31, 20232,240,898 $10.65 3.1
Granted— —  
Exercised(22,727)2.68  
Forfeited/expired(787,886)12.39  
Outstanding at June 30, 20241,430,285 $9.82 3.7
At June 30, 2024, total remaining stock-based compensation expense for unvested stock option awards was $0.2 million, which is expected to be recognized over a weighted-average period of 0.8 years. For the three months ended June 30, 2024 and 2023, the Company recorded stock-based compensation expense for stock option awards of less than $0.1 million and $0.4 million, respectively. For the six months ended June 30, 2024 and 2023, the Company recorded stock-based compensation expense for stock option awards of $0.1 million and $0.7 million, respectively.
Restricted Stock Units
Activity in connection with restricted stock units is as follows for the six months ended June 30, 2024:
 Number of
Shares		Weighted- Average Grant Date Fair Value
Non-vested — December 31, 20235,763,510 $2.94 
Granted3,152,300 3.46 
Vested(1,604,111)3.02 
Forfeited(609,353)3.24 
Non-vested — June 30, 20246,702,346 $3.14 
At June 30, 2024, total remaining stock-based compensation expense for non-vested restricted stock units was $20.0 million, which is expected to be recognized over a weighted-average period of 2.7 years. For the three months ended June 30, 2024 and 2023, the Company recorded $2.3 million and $3.3 million in stock-based compensation expense for restricted stock units, respectively. For the six months ended June 30, 2024 and 2023, the Company recorded $4.1 million and $6.5 million in stock-based compensation expense for restricted stock units, respectively.
Performance Stock Units
Activity in connection with performance stock units is as follows for the six months ended June 30, 2024:
 Number of
Shares		Weighted- Average Grant Date Fair Value
Outstanding — December 31, 20232,518,556 $4.18 
Granted1,231,577 4.39 
Vested(364,837)5.99 
Forfeited(131,555)5.25 
Outstanding — June 30, 2024
3,253,741 

$4.01 
At June 30, 2024, total remaining stock-based compensation expense for non-vested performance stock units was $7.0 million, which is expected to be recognized over a weighted-average period of 2.3 years. For the three months ended June 30, 2024 and 2023, the Company recorded $0.9 million and $0.2 million in stock-based compensation expense for performance stock units, respectively. For the six months ended June 30, 2024 and 2023, the Company recorded $1.6 million and $1.4 million in stock-based compensation expense for performance stock units, respectively.
Stock-based Compensation Cost
The Company recorded stock-based compensation cost relating to stock options, restricted stock units, and performance stock units in the following categories on the accompanying condensed consolidated statements of comprehensive loss (in thousands):
 Three Months Ended
June 30,		Six Months Ended
June 30,
 2024202320242023
Cost of revenue$62 $54 $114 $104 
Sales and marketing516 827 915 2,722 
Technology and development532 980 1,028 1,997 
General and administrative2,079 2,030 3,764 3,776 
Total stock-based compensation expense3,189 3,891 5,821 8,599 
Amount capitalized to internal software use177 225 367 447 
Total stock-based compensation cost$3,366 $4,116 $6,188 $9,046