Quarterly report pursuant to Section 13 or 15(d)

EQUITY AND EARNINGS PER SHARE (Details) (Narrative)

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EQUITY AND EARNINGS PER SHARE (Details) (Narrative) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 12 Months Ended
May 02, 2018
Apr. 30, 2018
Mar. 06, 2018
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Class of Stock [Line Items]            
Fair value of options       $ 4.3    
Unrecognized stock-based compensation expense       $ 4.0    
Dilutive common stock equivalents (in shares)       0 0  
Stock options            
Class of Stock [Line Items]            
Antidilutive securities (in shares)       0 151,234  
Common stock equivalents            
Class of Stock [Line Items]            
Dilutive common stock equivalents (in shares)       2,509,765 1,941,409  
Series B Cumulative Redeemable Preferred Stock            
Class of Stock [Line Items]            
Dividends declared per share of preferred stock (in dollars per share)     $ 0.609375      
Preferred stock, dividend rate     9.75% 9.75%   9.75%
Series C Cumulative Redeemable Preferred Stock            
Class of Stock [Line Items]            
Dividends declared per share of preferred stock (in dollars per share)     $ 0.503125      
Preferred stock, dividend rate     8.05% 8.05%   8.05%
Series D Cumulative Redemable Preferred Stock            
Class of Stock [Line Items]            
Dividends declared per share of preferred stock (in dollars per share)     $ 0.523438      
Preferred stock, dividend rate     8.375% 8.375%   8.375%
Subsequent event            
Class of Stock [Line Items]            
Dividends paid   $ 1.4        
Subsequent event | Series B Cumulative Redeemable Preferred Stock            
Class of Stock [Line Items]            
Dividends declared per share of preferred stock (in dollars per share) $ 0.609375          
Preferred stock, dividend rate 9.75%          
Subsequent event | Series C Cumulative Redeemable Preferred Stock            
Class of Stock [Line Items]            
Dividends declared per share of preferred stock (in dollars per share) $ 0.503125          
Preferred stock, dividend rate 8.05%          
Subsequent event | Series D Cumulative Redemable Preferred Stock            
Class of Stock [Line Items]            
Dividends declared per share of preferred stock (in dollars per share) $ 0.523438          
Preferred stock, dividend rate 8.375%          
Stock options            
Class of Stock [Line Items]            
Vesting period       1 year    
Stock-based compensation expense       $ 0.3    
Unrecognized stock-based compensation expense, period for recognition       4 years 5 months