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Investment Securities (Scheduled Maturities Of Securities Available For Sale And Securities Held To Maturity) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Investments [Abstract]
Debt securities available for sale, Due in one year or less, Amortized Cost	$ 21,794
Debt securities available for sale, Due from one to five years, Amortized Cost	105,018
Debt securities available for sale, Due after five years through ten years, Amortized Cost	173,807
Debt securities available for sale, Due after ten years, Amortized Cost	101,678
Securities available for sale, Amortized Cost	402,297	$ 455,582
Debt securities available for sale, Due in one year or less, Fair Value	21,721
Debt securities available for sale, Due from one to five years, Fair Value	106,314
Debt securities available for sale, Due after five years through ten years, Fair Value	176,526
Debt securities available for sale, Due after ten years, Fair Value	101,948
Debt securities available for sale, Fair Value	406,509	445,677
Debt securities held to maturity, Due in one year or less, Amortized Cost	47,189
Debt securities held to maturity, Due from one to five years, Amortized Cost	131,918
Debt securities held to maturity, Due after five years through ten years, Amortized Cost	58,251
Debt securities held to maturity, Due after ten years, Amortized Cost	161,252
Securities held to maturity, Amortized Cost	398,610	446,581
Debt securities held to maturity, Due in one year or less, Fair Value	47,565
Debt securities held to maturity, Due from one to five years, Fair Value	134,551
Debt securities held to maturity, Due after five years through ten years, Fair Value	58,541
Debt securities held to maturity, Due after ten years, Fair Value	160,748
Securities held to maturity, Fair Value	$ 401,405	$ 439,581

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