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Employee Retirement Plan - 401(k) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Retirement Benefits [Abstract]      
Percentage of eligible compensation matched 6.00%    
Company match percentage 50.00%    
Total expense related to the Retirement Plan, including optional contributions $ 2.1 $ 2.0 $ 1.8
Deferred compensation liability 10.4 11.3  
Expense recorded for deferred compensation plan $ 1.1 $ 1.9 $ 1.2