CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (UNAUDITED) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Common stock, dividends declared (in dollars per share)	$ 0.135	$ 0.125	$ 0.395	$ 0.375
Series A Preferred Stock
Preferred stock, dividends declared (in dollars per share)	0.421875	0.421875	1.265625	1.265625
Series B Preferred Stock
Preferred stock, dividends declared (in dollars per share)	$ 0.406250	$ 0.406250	$ 1.21875	$ 1.218750