Quarterly report pursuant to Section 13 or 15(d)

Equity and Mezzanine Equity - Dividends Paid (Detail)

v3.21.2
Equity and Mezzanine Equity - Dividends Paid (Detail) - $ / shares
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Senior Common Stock        
Dividends Payable [Line Items]        
Common Stock, dividends paid (in dollars per share) $ 0.2625 $ 0.2625 $ 0.7875 $ 0.7875
Series D Preferred Stock        
Dividends Payable [Line Items]        
Preferred Stock, dividends paid (in dollars per share) 0 0.4374999 0.8749998 1.3124997
Series E Preferred Stock        
Dividends Payable [Line Items]        
Preferred Stock, dividends paid (in dollars per share) 0.414063 0.414063 1.242189 1.242189
Series F Preferred Stock        
Dividends Payable [Line Items]        
Preferred Stock, dividends paid (in dollars per share) 0.375 0.375 1.125 0.375
Series G Preferred Stock        
Dividends Payable [Line Items]        
Preferred Stock, dividends paid (in dollars per share) 0.375 0 0.375 0
Common Stock        
Dividends Payable [Line Items]        
Common Stock, dividends paid (in dollars per share) $ 0.37545 $ 0.37545 $ 1.12635 $ 1.12635