Quarterly report pursuant to Section 13 or 15(d)

EQUITY AND EARNINGS PER SHARE (Narrative) (Details)

v3.22.2.2
EQUITY AND EARNINGS PER SHARE (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Nov. 07, 2022
Oct. 31, 2022
Aug. 01, 2022
May 02, 2022
Jan. 31, 2022
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Jul. 12, 2021
Class of Stock                      
Dividends paid     $ 1.4 $ 1.4 $ 1.4            
Preferred dividends in arrears               $ 5.6      
Subsequent event                      
Class of Stock                      
Dividends paid   $ 1.4                  
Symphony Ventures                      
Class of Stock                      
Total commitment                     $ 10.0
SLP                      
Class of Stock                      
Majority ownership percentage (as percent)                     90.00%
SLP | Symphony Ventures                      
Class of Stock                      
Minority interest percentage (as percent)                     10.00%
Series B Cumulative Redeemable Preferred Stock                      
Class of Stock                      
Dividends declared per share of preferred stock (in usd per share)     $ 0.609375 $ 0.609375 $ 0.609375            
Preferred stock, dividend rate (as percent)     9.75% 9.75% 9.75%     9.75%   9.75%  
Series B Cumulative Redeemable Preferred Stock | Subsequent event                      
Class of Stock                      
Dividends declared per share of preferred stock (in usd per share) $ 0.609375 $ 0.609375                  
Preferred stock, dividend rate (as percent) 9.75% 9.75%                  
Series C Cumulative Redeemable Preferred Stock                      
Class of Stock                      
Dividends declared per share of preferred stock (in usd per share)     $ 0.503125 $ 0.503125 $ 0.503125            
Preferred stock, dividend rate (as percent)     8.05% 8.05% 8.05%     8.05%   8.05%  
Series C Cumulative Redeemable Preferred Stock | Subsequent event                      
Class of Stock                      
Dividends declared per share of preferred stock (in usd per share) $ 0.503125 $ 0.503125                  
Preferred stock, dividend rate (as percent) 8.05% 8.05%                  
Series D Cumulative Redeemable Preferred Stock                      
Class of Stock                      
Dividends declared per share of preferred stock (in usd per share)     $ 0.523438 $ 0.523438 $ 0.523438            
Preferred stock, dividend rate (as percent)     8.375% 8.375% 8.375%     8.375%   8.375%  
Series D Cumulative Redeemable Preferred Stock | Subsequent event                      
Class of Stock                      
Dividends declared per share of preferred stock (in usd per share) $ 0.523438 $ 0.523438                  
Preferred stock, dividend rate (as percent) 8.375% 8.375%                  
Employee                      
Class of Stock                      
Stock-based compensation expense               $ (0.6)      
Restricted Stock Units (RSUs)                      
Class of Stock                      
Options (in shares)           0 0 0 0    
Stock-based compensation expense           $ 0.1 $ 0.1 $ 0.2 $ 0.3    
Unrecognized stock-based compensation expense           $ 0.0   $ 0.0      
Unrecognized stock-based compensation expense, period for recognition               2 months 12 days      
Granted (in shares)               0      
Shares issued upon vesting (in shares)               23,605      
Restricted Stock Units (RSUs) | Scenario, Adjustment                      
Class of Stock                      
Stock-based compensation expense               $ (0.3)      
Restricted Stock Units (RSUs) | Employee                      
Class of Stock                      
Shares issued upon vesting (in shares)               23,605      
Non option granted (in shares)               0      
Restricted Stock Units (RSUs) | Nonemployee                      
Class of Stock                      
Vesting period               1 year      
Shares issued upon vesting (in shares)               87,757      
Stock options                      
Class of Stock                      
Options (in shares)           0 0 0 0    
Stock-based compensation expense           $ 0.1 $ 0.2 $ 0.2 $ 0.6    
Unrecognized stock-based compensation expense           $ 0.1   $ 0.1      
Unrecognized stock-based compensation expense, period for recognition               9 months 18 days      
Common stock equivalents | Restricted Stock Units (RSUs)                      
Class of Stock                      
Options (in shares)           96,172 329,724 82,685 584,360