CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Cash dividends on common stock (in dollars per share)	$ 0.33	$ 0.30
Series D Preferred Stock
Cash dividends on preferred stock (in dollars per share)	0.39	$ 0.39
Series E Preferred Stock
Cash dividends on preferred stock (in dollars per share)	$ 0.37