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Share-Based Compensation - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Aug. 03, 2018
Dec. 03, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Options outstanding to purchase shares of common stock (in shares) 22,625,323   22,625,323   21,843,781 25,087,416 14,936,726    
Warrants outstanding (in shares) 950,000   950,000   1,100,000 900,000      
Share-based payments expense $ 2,900,000 $ 2,000,000.0 $ 5,200,000 $ 4,000,000.0 $ 22,000,000.0 $ 12,000,000.0 $ 9,100,000    
Unrecognized compensation expense related to non-vested share options $ 8,700,000   $ 8,700,000   12,900,000        
Weighted average period for recognition related to non-vested stock options (in years)     1 year 3 months 21 days            
Total intrinsic value of shares exercised     $ 0.0 500,000 7,731,175 2,421,499 0.0    
Total fair value of vested shares     4,800,000 1,900,000 $ 8,400,000 11,800,000 8,500,000    
Cash received from options exercised     $ 0.0 $ 300,000          
Weighted average exercise price of warrants (in dollars per share) $ 4.24   $ 4.24   $ 4.00        
Weighted average remaining life of warrants (in years)     2 months 4 days   7 months 9 days        
Unrecognized compensation cost related to unvested restricted shares $ 0   $ 0            
2010 Stock Incentive Plan ("the Plan")                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of shares authorized for issuance (in shares)               56,800,000 31,500,000
Number of options available for issuance (in shares) 16,600,000   16,600,000   17,400,000        
Options                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Options outstanding to purchase shares of common stock (in shares) 22,600,000   22,600,000            
Weighted average period for recognition related to non-vested stock options (in years)         1 year 4 months 24 days        
Cash received from options exercised         $ 8,400,000 $ 1,700,000 $ 0.0    
Restricted Stock                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Unrecognized compensation cost related to unvested restricted shares         $ 0