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Stock-Based Compensation Expense - Narrative (Details)
$ in Millions
12 Months Ended
Jun. 04, 2018
shares
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2020
USD ($)
installment
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Period of additional tranche conditional upon termination 1 year    
Period preceding change in control when terminated employee becomes vested in all unvested awards 3 months    
Period following change in control when terminated employee becomes vested in all unvested awards 12 months    
Stock-based compensation expense, tax | $   $ 1.3 $ 0.9
Incentive plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expiration period 10 years    
Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost related to unvested awards | $   $ 1.0 $ 2.2
Weighted-average recognition period   1 year 3 months 18 days 2 years 4 months 24 days
RSUs      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost related to unvested awards | $   $ 5.6 $ 3.5
Weighted-average recognition period   1 year 9 months 18 days 1 year 10 months 24 days
Accelerated Vesting Due To Termination      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Accelerated vesting 50.00%    
Class A Common Stock | 2020 Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares available for grant (in shares) | shares   2,100,000  
Class A Common Stock | Incentive plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares available for grant (in shares) | shares   1  
Number of shares authorized (in shares) | shares 2,222,223    
Management | Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Contractual term     5 years
Vesting period     4 years
Management | First anniversary | Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting rights     30.00%
Management | Second anniversary | Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting rights     30.00%
Management | Third anniversary | Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting rights     20.00%
Management | Fourth anniversary | Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting rights     20.00%
Non Employee Directors | Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Contractual term     5 years
Number of annual award vesting installments | installment     4