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Investment Securities (Summary Of Amortized Cost And Fair Value Of Investment Securities) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Investment [Line Items]
Securities available for sale, Amortized Cost	$ 586,099	$ 618,166
Securities available for sale, Unrealized Gains	8,004	8,830
Securities available for sale, Unrealized Losses	8,624	17,596
Securities available for sale, Fair Value	585,479	609,400
Securities held to maturity, Amortized Cost	285,967	249,785
Securities held to maturity, Unrealized Gains	5,356
Securities held to maturity, Unrealized Losses	165
Securities held to maturity, Fair Value	291,158	250,657
U.S. Government Agencies And Government Sponsored Enterprises [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	115,830	135,840
Securities available for sale, Unrealized Gains	916	1,414
Securities available for sale, Unrealized Losses	1,468	2,802
Securities available for sale, Fair Value	115,278	134,452
State And Political Subdivisions [Member]
Investment [Line Items]
Securities held to maturity, Amortized Cost	268,708	249,785
Securities held to maturity, Unrealized Gains	5,356	1,340
Securities held to maturity, Unrealized Losses	58	468
Securities held to maturity, Fair Value	274,006	250,657
Mortgage-Backed Securities [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	470,269	482,308
Securities available for sale, Unrealized Gains	6,847	7,035
Securities available for sale, Unrealized Losses	7,156	14,794
Securities available for sale, Fair Value	469,960	474,549
Mortgage-Backed Securities [Member] | Federal National Mortgage Association [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	182,986	173,507
Securities available for sale, Unrealized Gains	1,720	1,511
Securities available for sale, Unrealized Losses	2,228	4,810
Securities available for sale, Fair Value	182,478	170,208
Securities held to maturity, Amortized Cost	3,300
Securities held to maturity, Unrealized Losses	37
Securities held to maturity, Fair Value	3,263
Mortgage-Backed Securities [Member] | Federal Home Loan Mortgage Corporation [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	30,784	36,737
Securities available for sale, Unrealized Gains	588	562
Securities available for sale, Unrealized Losses	42	205
Securities available for sale, Fair Value	31,330	37,094
Mortgage-Backed Securities [Member] | Government National Mortgage Association [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	51,449	61,832
Securities available for sale, Unrealized Gains	1,912	2,152
Securities available for sale, Unrealized Losses		142
Securities available for sale, Fair Value	53,361	63,842
Securities held to maturity, Amortized Cost	13,959
Securities held to maturity, Unrealized Losses	70
Securities held to maturity, Fair Value	13,889
Collateralized Mortgage Obligations [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	205,050	210,232
Securities available for sale, Unrealized Gains	2,627	2,810
Securities available for sale, Unrealized Losses	4,886	9,637
Securities available for sale, Fair Value	202,791	203,405
Collateralized Mortgage Obligations [Member] | Federal National Mortgage Association [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	78,874	63,838
Securities available for sale, Unrealized Gains	367	261
Securities available for sale, Unrealized Losses	1,358	3,195
Securities available for sale, Fair Value	77,883	60,904
Collateralized Mortgage Obligations [Member] | Federal Home Loan Mortgage Corporation [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	93,063	102,660
Securities available for sale, Unrealized Gains	211	169
Securities available for sale, Unrealized Losses	3,418	5,856
Securities available for sale, Fair Value	89,856	96,973
Collateralized Mortgage Obligations [Member] | Government National Mortgage Association [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost	33,113	43,734
Securities available for sale, Unrealized Gains	755	913
Securities available for sale, Unrealized Losses	110	586
Securities available for sale, Fair Value	33,758	44,061
Collateralized Mortgage Obligations [Member] | Privately Issued [Member]
Investment [Line Items]
Securities available for sale, Unrealized Gains	1,294	1,467
Securities available for sale, Fair Value	1,294	1,467
Asset-Backed Securities [Member]
Investment [Line Items]
Securities available for sale, Amortized Cost		18
Securities available for sale, Unrealized Gains	241	381
Securities available for sale, Fair Value	$ 241	$ 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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- 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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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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