Consolidated Balance Sheet (Parenthetical) (USD $) In Thousands, except Share data	Jun. 30, 2011	Dec. 31, 2010	Jun. 30, 2010
Securities Available-for-Sale, at Cost	$ 499,628	$ 511,146	$ 434,855
Securities Held-to-Maturity, at Fair Value	143,327	162,713	162,077
Other Investments, at Fair Value	$ 7,019	$ 8,602	$ 9,474
Preferred Stock, Par Value	$ 5	$ 5	$ 5
Preferred Stock, Shares Authorized	1,000,000	1,000,000	1,000,000
Common Stock, Par Value	$ 1	$ 1	$ 1
Common Stock, Shares Authorizied	20,000,000	20,000,000	20,000,000
Common Stock, Shares Issued	15,625,512	15,625,512	15,170,399
Unallocated ESOP Shares - Shares	118,292	132,296	87,551
Treasury Stock, Shares at Cost	4,152,043	4,237,435	4,111,704