Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Monthly Distributions Declared by Company's Board of Directors (Detail)

v3.21.2
Subsequent Events - Monthly Distributions Declared by Company's Board of Directors (Detail) - $ / shares
Oct. 06, 2021
Sep. 30, 2021
Sep. 03, 2021
Aug. 31, 2021
Aug. 06, 2021
Jul. 30, 2021
Jul. 13, 2021
Series E Preferred Stock | Subsequent Event              
Dividends Payable [Line Items]              
Distribution per share (in dollars per share)           $ 0.138021 $ 0.414063
Series G Preferred Stock | Subsequent Event              
Dividends Payable [Line Items]              
Distribution per share (in dollars per share)           0.125 0.375
Senior Common Stock | Subsequent Event              
Dividends Payable [Line Items]              
Distribution per share (in dollars per share)         $ 0.0875   0.2625
Series F Preferred Stock | Subsequent Event              
Dividends Payable [Line Items]              
Distribution per share (in dollars per share)         $ 0.125   0.375
Common Stock | Subsequent Event              
Dividends Payable [Line Items]              
Distribution per share (in dollars per share)           $ 0.12515 $ 0.37545
Forecast | Series E Preferred Stock              
Dividends Payable [Line Items]              
Distribution per share (in dollars per share)   $ 0.138021   $ 0.138021      
Forecast | Series G Preferred Stock              
Dividends Payable [Line Items]              
Distribution per share (in dollars per share)   0.125   0.125      
Forecast | Senior Common Stock              
Dividends Payable [Line Items]              
Distribution per share (in dollars per share) $ 0.0875   $ 0.0875        
Forecast | Series F Preferred Stock              
Dividends Payable [Line Items]              
Distribution per share (in dollars per share) $ 0.125   $ 0.125        
Forecast | Common Stock              
Dividends Payable [Line Items]              
Distribution per share (in dollars per share)   $ 0.12515   $ 0.12515