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Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2021
Share-based Payment Arrangement [Abstract]  
Schedule of Assumptions Used to Estimate Fair Value of Awards
The fair value of market based RSUs was estimated at the date of grant using the Monte-Carlo option pricing model with the assumptions below. Additional details on the Company's market based RSUs are included below.
Three Months Ended
March 31,
2021
Expected term (in years)0.74
Expected volatility63.0 %
Risk-free interest rate0.17 %
Dividend yield— %
Summary of Total Stock-Based Compensation Expense Included in Statements of Operations and Comprehensive Loss
The following table summarizes the total stock-based compensation expense included in the statements of operations and comprehensive loss for all periods presented (in thousands):
Three Months Ended,
March 31,
20212020
Cost of revenue$423 $— 
Research and development1,659 741 
Selling, general and administrative18,148 (436)
Total stock-based compensation expense$20,230 $305