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Stockholders' Equity - Series B (Details) - Series B Preferred Stock
shares in Thousands
 6 Months Ended 12 Months Ended
Apr. 15, 2013
$ / shares
shares
Jun. 30, 2022
director
quarter
$ / shares
shares
Jun. 30, 2021
$ / shares
Dec. 31, 2021
$ / shares
shares
Class of Stock [Line Items]        
Preferred Stock, dividend rate   7.50%   7.50%
Preferred stock, shares issued (in shares) | shares   8,000   8,000
Preferred stock par value (in dollars per share)   $ 0.01   $ 0.01
Percentage required for making material changes   66.67%    
Preferred Stock        
Class of Stock [Line Items]        
Preferred Stock, dividend rate 7.50% 7.50% 7.50%  
Preferred stock, shares issued (in shares) | shares 8,000      
Preferred stock par value (in dollars per share) $ 0.01      
Preferred stock, liquidation preference (in dollars per share) 25.00 $ 25.00 $ 25.00  
Preferred stock, redemption price (in dollars per share) $ 25.00      
Maximum quarters without dividends to get voting rights, in quarters | quarter   6    
Number of additional directors that can be elected by preferred stock holders | director   2