Investment Securities (Amortization Cost And Estimated Fair Value Of Investment Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Schedule Of Amortized Cost And Estimated Fair Values [Line Items]
Held-to-maturity securities, Amortized Cost	$ 9,201	$ 11,387
Held-to-maturity securities, Gross Unrealized Gains	171	250
Held-to-maturity securities	9,372	11,637
Available-for-sale securities, Amortized Cost	731,597	812,674
Available-for-sale securities, Gross Unrealized Gains	13,100	11,155
Available-for-sale securities, Gross Unrealized Losses	(5,124)	(8,530)
Available-for-sale, at fair value	739,573	815,299
State And Municipals [Member]
Schedule Of Amortized Cost And Estimated Fair Values [Line Items]
Held-to-maturity securities, Amortized Cost	8,362	10,419
Held-to-maturity securities, Gross Unrealized Gains	117	177
Held-to-maturity securities	8,479	10,596
Available-for-sale securities, Amortized Cost	443,586	444,154
Available-for-sale securities, Gross Unrealized Gains	12,735	10,137
Available-for-sale securities, Gross Unrealized Losses	(1,477)	(3,631)
Available-for-sale, at fair value	454,844	450,660
Pass-Through Mortgage Securities [Member]
Schedule Of Amortized Cost And Estimated Fair Values [Line Items]
Held-to-maturity securities, Amortized Cost	334	361
Held-to-maturity securities, Gross Unrealized Gains	28	33
Held-to-maturity securities	362	394
Available-for-sale securities, Amortized Cost	158,948	188,527
Available-for-sale securities, Gross Unrealized Gains	116	156
Available-for-sale securities, Gross Unrealized Losses	(2,347)	(2,874)
Available-for-sale, at fair value	156,717	185,809
Collateralized Mortgage Obligations [Member]
Schedule Of Amortized Cost And Estimated Fair Values [Line Items]
Held-to-maturity securities, Amortized Cost	505	607
Held-to-maturity securities, Gross Unrealized Gains	26	40
Held-to-maturity securities	531	647
Available-for-sale securities, Amortized Cost	129,063	179,993
Available-for-sale securities, Gross Unrealized Gains	249	862
Available-for-sale securities, Gross Unrealized Losses	(1,300)	(2,025)
Available-for-sale, at fair value	$ 128,012	$ 178,830

Schedule Of Amortized Cost And Estimated Fair Values [Line Items]

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- Definition

Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in equity securities classified as available-for-sale.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in equity securities classified as available-for-sale.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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Amount of accumulated unrealized gain on investments in debt securities classified as held-to-maturity.

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Fair value of investments in debt securities classified as held-to-maturity.

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