Consolidated Statement of Changes in Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Purchase of common stock, shares	3,307,183	7,816,228
Shares issued for restricted stock awards, shares	2,321,105	1,515,760
Preferred Stock (Par Value: $0.01):
Dividends paid on preferred stock, per share	$ 15.94	$ 15.94
Common Stock (Par Value: $0.01):
Dividends paid on common stock, per share	$ 0.17	$ 0.17