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Stock-Based Compensation - Schedule of Fair Value Assumptions (Details)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
CEO Award        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Dividend yield       0.00%
Risk-free interest rates       1.70%
Expected volatility       65.00%
2018 Employee Stock Purchase Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Dividend yield 0.00% 0.00% 0.00%  
Risk-free interest rates, minimum 4.30% 4.00% 1.50%  
Risk-free interest rates, maximum 5.40% 5.40% 4.60%  
Expected volatility, minimum 44.00% 58.00% 68.00%  
Expected volatility, maximum 64.00% 74.00% 76.00%  
2018 Employee Stock Purchase Plan | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected term (in years) 6 months 6 months 6 months  
2018 Employee Stock Purchase Plan | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected term (in years) 2 years 2 years 2 years