CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash dividends per share common stock (in dollars per share)	$ 0.16	$ 0.13
Shares of common stock purchased (in shares)		1,761
Shares of common stock issued (in shares)	126,112	1,116,644
Series D Preferred Stock
Cash dividends per share preferred stock (in dollars per share)		$ 17.50