CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash dividends declared (in USD per share)	$ 0.44	$ 0.44	$ 0.44
Series A Preferred Stock
Cash dividends declared (in USD per share)	1.56	1.56	1.56
Series B Preferred Stock
Cash dividends declared (in USD per share)	1.38	1.38	1.38
Common Stock
Cash dividends declared (in USD per share)	$ 0.44	$ 0.44	$ 0.44