Annual report pursuant to Section 13 and 15(d)

INCOME TAXES - Common and Preferred Stock Distribution (Details)

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INCOME TAXES - Common and Preferred Stock Distribution (Details) - $ / shares
 3 Months Ended 12 Months Ended
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dividends Payable [Line Items]                              
Common stock, dividends declared per share (in dollars per share)                         $ 0.200 $ 0.900 $ 3.000
Total Distribution per Share                              
Dividends Payable [Line Items]                              
Common stock, dividends declared per share (in dollars per share) $ 0.0500 $ 0.0500 $ 0.0500 $ 0.0500 $ 0.0500 $ 0.0500 $ 0.0500 $ 0.7500 $ 0.7500 $ 0.7500 $ 0.7500 $ 0.7500 0.2000 0.9000 3.0000
Preferred stock, dividends declared per share (in dollars per share) 0.4609 0.4609 0.4609 0.4609 0.4609 0.4609 0.4609 0.4609 0.4609 0.4609 0.4609 0.4609 1.8436 1.8436 1.8436
Total Ordinary Dividends                              
Dividends Payable [Line Items]                              
Common stock, dividends declared per share (in dollars per share) 0 0 0 0 0 0 0 0 0.4578 0.4578 0.4578 0.5803 0 0 1.9537
Preferred stock, dividends declared per share (in dollars per share) 0 0 0 0 0 0 0 0 0.4463 0.4463 0.4463 0.4483 0 0 1.7872
Qualified Dividends                              
Dividends Payable [Line Items]                              
Common stock, dividends declared per share (in dollars per share) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Preferred stock, dividends declared per share (in dollars per share) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Capital Gain Distributions                              
Dividends Payable [Line Items]                              
Common stock, dividends declared per share (in dollars per share) 0 0 0 0 0 0 0 0 0.0150 0.0150 0.0150 0.0156 0 0 0.0606
Preferred stock, dividends declared per share (in dollars per share) 0 0 0 0 0 0 0 0 0.0146 0.0146 0.0146 0.0126 0 0 0.0564
Nondividend Distributions                              
Dividends Payable [Line Items]                              
Common stock, dividends declared per share (in dollars per share) 0.0500 0.0500 0.0500 0.0500 0.0500 0.0500 0.0500 0.7500         0.2000 0.9000  
Preferred stock, dividends declared per share (in dollars per share) 0.4609 0.4609 0.4609 0.4609 0.4609 0.4609 0.4609 0.4609         1.8436 1.8436  
Nondividend Distributions                              
Dividends Payable [Line Items]                              
Common stock, dividends declared per share (in dollars per share)                 0.2772 0.2772 0.2772 0.1541     0.9857
Preferred stock, dividends declared per share (in dollars per share)                 0 0 0 0     0
Section 199A Dividends                              
Dividends Payable [Line Items]                              
Common stock, dividends declared per share (in dollars per share) 0 0 0 0 0 0 0 0 0.4578 0.4578 0.4578 0.5803 0 0 1.9537
Preferred stock, dividends declared per share (in dollars per share) $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0.4463 $ 0.4463 $ 0.4463 $ 0.4483 $ 0 $ 0 $ 1.7872