Consolidated Statement of Changes in Stockholders' Equity (Parenthetical)	6 Months Ended
	Jun. 30, 2018 $ / shares shares
Common Stock (Par Value: $0.01):
Shares issued for restricted stock awards, shares	1,366,969
Retained Earnings:
Dividends paid on common stock, per share | $ / shares	$ 0.34
Dividends paid on preferred stock, per share | $ / shares	$ 31.88
Treasury Stock, at Cost:
Purchase of common stock, shares	150,250
Shares issued for restricted stock awards, shares	672,634