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Employee Stock Purchase Plan, Stock Options and Warrants - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Jun. 17, 2021
Jun. 30, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Allocated share-based compensation     $ 16,090 $ 14,339 $ 9,382
Stock Options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Options granted in period (in shares)     716,000 329,000 1,200,000
Compensation cost not yet recognized     $ 26,500    
Compensation cost not yet recognized, period of recognition     2 years 6 months    
Fair value of options, net of forfeitures     $ 17,500 $ 4,500 $ 20,900
Options granted in period, weighted average grant date fair value (in dollars per share)     $ 24.38 $ 13.70 $ 16.78
Stock-Settled Performance-Based Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period     1 year    
Compensation cost not yet recognized     $ 4,400    
Compensation cost not yet recognized, period of recognition     1 year 6 months    
Vested (in shares)     26,000 0 0
Forfeited (in shares)     21,000    
Weighted average grant-date fair value (in dollars per share)     $ 61.39 $ 43.63  
Restricted stock units granted (in shares)     103,000    
Restricted stock units vested (in shares)     26,000 0 0
Number of shares of common stock for each unit     1    
Stock-Settled Performance-Based Restricted Stock Units | FCF | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Multiplying factor     100.00% 100.00% 200.00%
Stock-Settled Performance-Based Restricted Stock Units | rTSR          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Multiplying factor     125.00%    
Stock-Settled Performance-Based Restricted Stock Units | rTSR | Minimum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Multiplying factor     75.00%    
Stock-Settled Performance-Based Restricted Stock Units | rTSR | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Multiplying factor     125.00%    
Stock-Settled Performance-Based Restricted Stock Units | Performance period 1          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period     1 year    
Decrease in the potential shares of common stock to be granted   25,415      
Stock-Settled Performance-Based Restricted Stock Units | Performance period 1 | FCF | Minimum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Multiplying factor       0.00%  
Stock-Settled Performance-Based Restricted Stock Units | Performance period 1 | FCF | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Multiplying factor     100.00% 100.00%  
Stock-Settled Performance-Based Restricted Stock Units | Performance period 2          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period     2 years    
Stock-Settled Performance-Based Restricted Stock Units | Performance period 2 | FCF | Minimum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Multiplying factor     0.00% 0.00%  
Stock-Settled Performance-Based Restricted Stock Units | Performance period 2 | FCF | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Multiplying factor     200.00% 200.00%  
Stock-Settled Performance-Based Restricted Stock Units | Performance period 3          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period     3 years    
Cash-Settled Performance-Based Share-Based Awards (Liability Awards)          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Target cash incentive     $ 1,000 $ 1,000  
Liabilities associated with awards     2,000    
Compensation cost not yet recognized     $ 1,700    
Compensation cost not yet recognized, period of recognition     1 year 7 months 6 days    
Amount paid in connection with liability awards     $ 417    
Vested (in shares)       0 0
Forfeited (in shares)     0 0 0
Restricted stock units vested (in shares)       0 0
Cash-Settled Performance-Based Share-Based Awards (Liability Awards) | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Target cash incentive     $ 2,500 $ 2,100  
Multiplying factor     250.00% 250.00%  
Cash-Settled Performance-Based Share-Based Awards (Liability Awards) | Performance period 1          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period     1 year    
Cash-Settled Performance-Based Share-Based Awards (Liability Awards) | Performance period 1 | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Multiplying factor       125.00%  
Cash-Settled Performance-Based Share-Based Awards (Liability Awards) | Performance period 2          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period     2 years    
Cash-Settled Performance-Based Share-Based Awards (Liability Awards) | Performance period 3          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period     3 years    
Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period     1 year    
Compensation cost not yet recognized     $ 700    
Compensation cost not yet recognized, period of recognition     6 months    
Vested (in shares)     34,000 0 0
Weighted average grant-date fair value (in dollars per share)     $ 61.77 $ 42.98  
Restricted stock units granted (in shares)     26,000 34,000  
Restricted stock units vested (in shares)     34,000 0 0
2018 Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Additional shares available for grant (in shares) 3,000,000        
Shares available for grant (in shares)     3,205,529    
2018 Incentive Plan | Stock Options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Expiration period     7 years    
2018 Incentive Plan | Stock Options | Minimum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period     3 years    
2018 Incentive Plan | Stock Options | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period     5 years    
ESPP          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Additional shares available for grant (in shares) 100,000        
Shares available for grant (in shares)     121,959    
Purchase price for ESPP, percent of market price     95.00%