XML 174 R159.htm IDEA: XBRL DOCUMENT v3.20.4
STOCKHOLDERS' EQUITY - Summary of Preferred Stock (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Class of Stock [Line Items]    
Carrying Value $ 184,878 $ 189,825
Preferred Stock    
Class of Stock [Line Items]    
Preferred stock, authorized (in shares) 50,000,000 197,106
Preferred stock, shares outstanding (in shares) 191,972 197,106
Liquidation Preference $ 191,972 $ 197,106
Carrying Value $ 184,878 $ 189,825
Preferred Stock | Series D Preferred Stock    
Class of Stock [Line Items]    
Non cumulative preferred stock, dividend rate (percent) 7.375% 7.375%
Preferred stock, authorized (in shares)   96,629
Preferred stock, shares outstanding (in shares) 93,270 96,629
Liquidation Preference $ 93,270 $ 96,629
Carrying Value $ 89,922 $ 93,162
Preferred Stock | Series E Preferred Stock    
Class of Stock [Line Items]    
Non cumulative preferred stock, dividend rate (percent) 7.00% 7.00%
Preferred stock, authorized (in shares)   100,477
Preferred stock, shares outstanding (in shares) 98,702 100,477
Liquidation Preference $ 98,702 $ 100,477
Carrying Value $ 94,956 $ 96,663