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Investment Securities (Summary Of Amortized Cost And Fair Value Of Investment Securities) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Investment [Line Items]
Securities available for sale, Amortized Cost	$ 599,763	$ 618,166
Securities available for sale, Unrealized Gains	10,260	8,830
Securities available for sale, Unrealized Losses	8,120	17,596
Securities available for sale, Fair Value	601,903	609,400
Securities held to maturity, Amortized Cost	262,057	249,785
Securities held to maturity, Unrealized Losses	8,198	18,064
Securities held to maturity, Fair Value	266,640	250,657
U.S. Government Agencies And Government Sponsored Enterprises [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	134,448	135,840
Securities available for sale, Unrealized Gains	1,719	1,414
Securities available for sale, Unrealized Losses	1,050	2,802
Securities available for sale, Fair Value	135,117	134,452
State And Political Subdivisions [Member]
Investment [Line Items]
Securities held to maturity, Amortized Cost	262,057	249,785
Securities held to maturity, Unrealized Gains	4,661	1,340
Securities held to maturity, Unrealized Losses	78	468
Securities held to maturity, Fair Value	266,640	250,657
Mortgage-Backed Securities [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	465,315	482,308
Securities available for sale, Unrealized Gains	8,310	7,035
Securities available for sale, Unrealized Losses	7,070	14,794
Securities available for sale, Fair Value	466,555	474,549
Mortgage-Backed Securities [Member] | Federal National Mortgage Association [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	172,449	173,507
Securities available for sale, Unrealized Gains	1,993	1,511
Securities available for sale, Unrealized Losses	2,217	4,810
Securities available for sale, Fair Value	172,225	170,208
Mortgage-Backed Securities [Member] | Federal Home Loan Mortgage Corporation [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	32,922	36,737
Securities available for sale, Unrealized Gains	894	562
Securities available for sale, Unrealized Losses	10	205
Securities available for sale, Fair Value	33,806	37,094
Mortgage-Backed Securities [Member] | Government National Mortgage Association [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	62,946	61,832
Securities available for sale, Unrealized Gains	2,551	2,152
Securities available for sale, Unrealized Losses	54	142
Securities available for sale, Fair Value	65,443	63,842
Collateralized Mortgage Obligations [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	196,998	210,232
Securities available for sale, Unrealized Gains	2,872	2,810
Securities available for sale, Unrealized Losses	4,789	9,637
Securities available for sale, Fair Value	195,081	203,405
Collateralized Mortgage Obligations [Member] | Federal National Mortgage Association [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	63,224	63,838
Securities available for sale, Unrealized Gains	431	261
Securities available for sale, Unrealized Losses	1,427	3,195
Securities available for sale, Fair Value	62,228	60,904
Collateralized Mortgage Obligations [Member] | Federal Home Loan Mortgage Corporation [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	96,922	102,660
Securities available for sale, Unrealized Gains	215	169
Securities available for sale, Unrealized Losses	3,289	5,856
Securities available for sale, Fair Value	93,848	96,973
Collateralized Mortgage Obligations [Member] | Government National Mortgage Association [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	36,852	43,734
Securities available for sale, Unrealized Gains	911	913
Securities available for sale, Unrealized Losses	73	586
Securities available for sale, Fair Value	37,690	44,061
Collateralized Mortgage Obligations [Member] | Privately Issued [Member]
Investment [Line Items]
Securities available for sale, Unrealized Gains	1,315	1,467
Securities available for sale, Fair Value	1,315	1,467
Asset-Backed Securities [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost		18
Securities available for sale, Unrealized Gains	231	381
Securities available for sale, Fair Value	$ 231	$ 399

X

- Definition

Amount of accumulated pre-tax unrealized gains before deducting pre-tax unrealized losses on investments in available-for-sale securities impacting investments.

+ References

No definition available.

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Amount of accumulated pre-tax unrealized loss before deducting pre-tax unrealized gain on investments in available-for-sale securities impacting investments.

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This item represents the excess of amortized cost basis over fair value of securities in a gain position and which are categorized as held-to-maturity.

+ References

No definition available.

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This item represents the excess of amortized cost basis over fair value of securities in a loss position and which are categorized as held-to-maturity.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

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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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Amount after other than temporary impairment (OTTI) accretion, of 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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