CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (unaudited) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Stockholders' Equity [Abstract]
Cash dividends on common stock (in dollars per share)	$ 0.33	$ 0.30	$ 0.66	$ 0.60
Preferred Stock | Series D Preferred Stock
Cash dividends on preferred stock (in dollars per share)	0.39	$ 0.39	0.78	$ 0.78
Preferred Stock | Series E Preferred Stock
Cash dividends on preferred stock (in dollars per share)	$ 0.37		$ 0.74