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Stock Based Compensation - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
May 13, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
May 12, 2021
Dec. 31, 2018
Board of Directors            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Nonemployee services transaction, quarterly fee   $ 33        
The 2009 Stock Incentive Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Increase in aggregate number of shares (in shares) 2,125,000          
Common stock available for grant (in shares) 4,000,000       1,875,000  
Capital shares reserved for future issuance (in shares)   2,167,000        
Compensation cost not yet recognized   $ 11,584        
Compensation cost not yet recognized, year one   4,263        
Compensation cost not yet recognized, year two   2,416        
Compensation cost not yet recognized, thereafter   $ 4,905        
The 2009 Stock Incentive Plan | Restricted Stock Units (RSUs)            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted (in shares)   635,000 502,000 6,000    
Unvested RSU awards outstanding (in dollars per share)   $ 14.07 $ 19.77 $ 24.82   $ 24.82
The 2009 Stock Incentive Plan | Restricted Stock Units (RSUs) | Armour Capital Management            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted (in shares)   535,000 358,000      
The 2009 Stock Incentive Plan | Restricted Stock Units (RSUs) | Director            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted (in shares)   100,000 144,000 6