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Stockholders' Equity - ESPP Valuation Assumptions (Details) - Employee Stock - Common Class A
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected volatility 62.80% 54.30%
Expected term (in years) 6 months 6 months
Risk-free interest rate 4.00% 4.70%