Condensed Consolidated Statements of Shareholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Common stock dividends/equivalents (in dollars per share)	$ 0.40	$ 0.40
Series F Preferred Stock
Preferred stock dividends (in dollars per share)	328.125	$ 328.125
Series G Preferred Stock
Preferred stock dividends (in dollars per share)	$ 16.25