Annual report pursuant to Section 13 and 15(d)

EQUITY AND EARNINGS PER SHARE EQUITY AND EARNINGS PER SHARE - Narrative (Details)

v3.19.3.a.u2
EQUITY AND EARNINGS PER SHARE EQUITY AND EARNINGS PER SHARE - Narrative (Details)
$ / shares in Units, $ in Thousands
 1 Months Ended 12 Months Ended
Apr. 11, 2018
Nov. 30, 2019
shares
May 31, 2019
shares
Mar. 31, 2007
USD ($)
shares
Oct. 31, 2005
USD ($)
shares
Mar. 31, 2003
USD ($)
$ / shares
shares
Dec. 31, 2019
USD ($)
$ / shares
shares
Dec. 31, 2018
USD ($)
$ / shares
shares
Dec. 31, 2017
shares
Mar. 06, 2020
right
$ / shares
Mar. 31, 2010
shares
Class of Stock [Line Items]                      
Potentially dilutive common stock equivalents (in shares)                 1,749,596    
Share price (in dollars per share) | $ / shares             $ 3.66        
Preferred stock, par value (in dollars per share) | $ / shares             0.01 $ 0.01      
Preferred stock liquidation preference (in dollars per share) | $ / shares             $ 25.00 $ 25.00      
Other investments | $             $ 24,020 $ 22,613      
Series B Cumulative Redeemable Preferred Stock                      
Class of Stock [Line Items]                      
Issuance of preferred stock (in shares)           2,500,000          
Issuance of preferred stock | $           $ 62,500          
Preferred stock, dividend rate (as percent)           9.75% 9.75% 9.75%      
Preferred stock liquidation preference (in dollars per share) | $ / shares           $ 25.00          
Cost incurred with stock issuance | $           $ 2,400          
Preferred stock, shares outstanding (in shares)             1,347,321 1,347,321     1,347,321
Series C Cumulative Redeemable Preferred Stock                      
Class of Stock [Line Items]                      
Issuance of preferred stock (in shares)         1,600,000            
Issuance of preferred stock | $         $ 40,000            
Preferred stock, dividend rate (as percent)         8.05%   8.05% 8.05%      
Increased dividend rate of preferred stock, if delisting occurs (as percent)         9.05%            
Cost incurred with stock issuance | $         $ 1,500            
Preferred stock, shares outstanding (in shares)             496,000 496,000     496,000
Series D Cumulative Redeemable Preferred Stock                      
Class of Stock [Line Items]                      
Issuance of preferred stock (in shares)       2,000,000              
Issuance of preferred stock | $       $ 50,000              
Preferred stock, dividend rate (as percent)       8.375%     8.375% 8.375%      
Increased dividend rate of preferred stock, if delisting occurs (as percent)       9.375%              
Cost incurred with stock issuance | $       $ 1,800              
Preferred stock, shares outstanding (in shares)             620,000 620,000     620,000
Stock Option                      
Class of Stock [Line Items]                      
Potentially dilutive common stock equivalents (in shares)             0 0 0    
Stock-based compensation expense | $             $ 600 $ 2,200      
Unrecognized stock-based compensation expense, stock options | $             $ 3,400        
Weighted average period of recognition for stock-based compensation expense             2 years 4 months        
RSUs                      
Class of Stock [Line Items]                      
Potentially dilutive common stock equivalents (in shares)             0 0 0    
Issuance of common stock (in shares)   8,548                  
Stock-based compensation expense | $             $ 700 $ 100      
Unrecognized stock-based compensation expense, stock options | $             $ 1,900        
Weighted average period of recognition for stock-based compensation expense             2 years 2 months        
Omnibus Incentive Plan 2018 | Stock Compensation Plan                      
Class of Stock [Line Items]                      
Shares available for grants (in shares)             5,343,078        
Director Stock Program                      
Class of Stock [Line Items]                      
Number of fully vested shares available for grant (as percent) 20.00%                    
Granted to the independent directors                      
Class of Stock [Line Items]                      
Shares of common stock issued for compensation (in shares)             27,099   152,800    
Issuance of common stock (in shares)     6,000         50,000      
Non-Employee Director | Director Stock Program                      
Class of Stock [Line Items]                      
Shares of common stock issued for compensation (in shares)             1,000 8,333      
Service period 30 days                    
Number of shares (in shares)             5,000 41,667      
Stock Option                      
Class of Stock [Line Items]                      
Potentially dilutive common stock equivalents excluded from diluted EPS calculation due to loss             2,113,022 2,718,704      
Antidilutive common stock equivalents (in shares)             396,146 88,023 201,430    
Subsequent Event | Common Stock                      
Class of Stock [Line Items]                      
Number of rights for each common stock outstanding | right                   1  
Subsequent Event | Series E Preferred Stock                      
Class of Stock [Line Items]                      
Preferred stock, par value (in dollars per share) | $ / shares                   $ 0.01  
Purchase price per unit (in dollars per share) | $ / shares                   $ 18.00