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Stock-Based Compensation - Narrative (Details) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2018
Jun. 09, 2021
Schedule of Equity Incentive Plans [Line Items]        
Number of shares available for awards (in shares) 7,645,467      
Purchases of common stock under ESPP (in shares) 0 0    
Stock appreciation rights        
Schedule of Equity Incentive Plans [Line Items]        
Granted (in shares)     67,739  
Aggregate value of awards granted     $ 0.1  
Stock option        
Schedule of Equity Incentive Plans [Line Items]        
Total unrecognized compensation expense, net of estimated forfeitures, relating to stock options $ 14.6      
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition (year) 3 years 3 months 18 days      
Restricted stock        
Schedule of Equity Incentive Plans [Line Items]        
Granted (in shares) 165,174,000      
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition (year) 2 years 8 months 12 days      
Total fair value of restricted stock, vested $ 0.6      
Total unrecognized compensation expense, net of estimated forfeitures, relating to restricted stock awards 17.2      
Deferred compensation share-based arrangements, liability $ 0.5      
2010 Plan        
Schedule of Equity Incentive Plans [Line Items]        
Number of shares of common stock reserved for issuance (in shares)       22,980,074
Employee Stock Purchase Plan        
Schedule of Equity Incentive Plans [Line Items]        
Number of shares of common stock reserved for issuance (in shares) 190      
Number of shares available for awards (in shares) 190      
Purchase price of common stock, percent 85.00%