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Employee Benefit Plans - 401(k) Plan - Additional Information (Details) - United States - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Defined Contribution Plan Disclosure [Line Items]        
Matching contribution of deferrals for eligible employees     25.00%  
Matching contribution compensation expense $ 1.2 $ 1.1 $ 3.8 $ 3.3