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Employee Benefit Plans - Schedule of Assumptions to Estimate Fair Value of Stock Options on Weighted Average Basis (Details) - Stock options
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Risk-free interest rate 1.06% 0.84%
Expected term 6 years 21 days 4 years 7 months 28 days
Expected volatility 37.74% 34.60%
Expected dividend yield 0.00% 0.00%