Subsequent Events - Declaration of Dividends (Details) - Subsequent event - Dividend Declared [Member]	Apr. 12, 2021 $ / shares
Series B Preferred Stock [Member] | May 5, 2021
Subsequent Event [Line Items]
Declaration of Dividends, Amount	$ 5.00
Series B Preferred Stock [Member] | June 4, 2021
Subsequent Event [Line Items]
Declaration of Dividends, Amount	5.00
Series B Preferred Stock [Member] | July 2, 2021
Subsequent Event [Line Items]
Declaration of Dividends, Amount	5.00
Series T Preferred Stock [Member] | May 5, 2021
Subsequent Event [Line Items]
Declaration of Dividends, Amount	0.128125
Series T Preferred Stock [Member] | June 4, 2021
Subsequent Event [Line Items]
Declaration of Dividends, Amount	0.128125
Series T Preferred Stock [Member] | July 2, 2021
Subsequent Event [Line Items]
Declaration of Dividends, Amount	$ 0.128125