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Employee Benefit Plans - Defined Contribution Plan (Details) - 401(k) Plan - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Employer matching contribution (as a percent) 50.00%    
Employer matching contribution percent of employees' salary (up to) 5.00%    
Plan cost recognized   $ 1.6 $ 1.0