v2.4.0.6

Securities (Schedule of Contractual Maturities of Investment Securities Available for Sale) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011
Available-for-sale Securities [Abstract]
Due within one year, Amortized Cost	$ 18,310
Due after one year through five years, Amortized Cost	52,418
Due after five years through ten years, Amortized Cost	204,470
Due after ten years, Amortized Cost	709,066
Total investment securities available-for-sale, Amortized Cost	984,264
Due within one year, Fair Value	18,610
Due after one year through five years, Fair Value	54,635
Due after five years through ten years, Fair Value	212,605
Due after ten years, Fair Value	738,930
Total investment securities available-for-sale, Fair Value	$ 1,024,780

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