Securities Available For Sale (Summary Of Securities Available For Sale) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Schedule of Available for sale Securities [Line Items]
Available for Sale, Amortized Cost	$ 490,477	$ 458,370
Available for Sale, Gross Unrealized Gains	13,887	14,487
Available for Sale, Gross Unrealized Losses	1,684	2,332
Available for Sale, Estimated Fair Value	502,680	470,525
US Government-Sponsored Enterprises [Member]
Schedule of Available for sale Securities [Line Items]
Available for Sale, Amortized Cost	295,647	282,217
Available for Sale, Gross Unrealized Gains	7,750	7,530
Available for Sale, Gross Unrealized Losses	831	1,537
Available for Sale, Estimated Fair Value	302,566	288,210
US Government Agency [Member]
Schedule of Available for sale Securities [Line Items]
Available for Sale, Amortized Cost	82,213	82,249
Available for Sale, Gross Unrealized Gains	1,734	1,626
Available for Sale, Gross Unrealized Losses	270	529
Available for Sale, Estimated Fair Value	83,677	83,346
Private Label Mortgage-Backed Securities [Member]
Schedule of Available for sale Securities [Line Items]
Available for Sale, Amortized Cost	2,968	3,723
Available for Sale, Gross Unrealized Gains	782	815
Available for Sale, Gross Unrealized Losses	8	14
Available for Sale, Estimated Fair Value	3,742	4,524
Obligations Of States And Political Subdivisions Thereof [Member]
Schedule of Available for sale Securities [Line Items]
Available for Sale, Amortized Cost	109,649	90,181
Available for Sale, Gross Unrealized Gains	3,621	4,516
Available for Sale, Gross Unrealized Losses	575	252
Available for Sale, Estimated Fair Value	$ 112,695	$ 94,445

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

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

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

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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