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Stock-based Compensation - Weighted Average Assumptions (Details) - Stock options
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Risk-free interest rate 3.00% 1.10% 1.90% 1.00%
Expected term (in years) 5 years 9 months 18 days 6 years 6 years 6 years
Dividend yield 0.00% 0.00% 0.00% 0.00%
Expected volatility 77.50% 78.90% 76.30% 79.30%