Consolidated Balance Sheets (Parenthetical) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Mortgage Loans:
Mortgages Held-for-sale, Fair Value Disclosure	$ 9,263,000	$ 4,981,000
Investment Securities:
Available for sale securities, pledged	$ 568,553,000	$ 568,257,000
Stockholders' Equity:
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, shares issued	6,000	6,000
Common stock, par value	$ 5.00	$ 5.00
Common stock, shares authorized	120,000,000	120,000,000
Common stock, shares issued	102,003,046	97,972,433
Treasury stock, shares	364,711	603,003