Annual report pursuant to Section 13 and 15(d)

Redemption of Series D and E Preferred Stock (Details)

v3.20.4
Redemption of Series D and E Preferred Stock (Details) - $ / shares
12 Months Ended
Feb. 04, 2021
Dec. 31, 2020
Subsequent Event [Line Items]    
Preferred stock liquidation preference per share (in usd per share)   $ 25.00
Series D Preferred Stock [Member]    
Subsequent Event [Line Items]    
Preferred stock dividend rate   7.75%
Series E Preferred Stock [Member]    
Subsequent Event [Line Items]    
Preferred stock dividend rate   7.50%
Subsequent Event [Member]    
Subsequent Event [Line Items]    
Preferred stock liquidation preference per share (in usd per share) $ 25.00  
Subsequent Event [Member] | Series D Preferred Stock [Member]    
Subsequent Event [Line Items]    
Preferred stock dividend rate 7.75%  
Subsequent Event [Member] | Series E Preferred Stock [Member]    
Subsequent Event [Line Items]    
Preferred stock dividend rate 7.50%