Investments (Aggregate Carrying And Approximate Market Values Of Available-For-Sale Securities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	$ 370,315	$ 358,281
Securities available-for-sale, Gross Unrealized Gains	10,131	9,885
Securities available-for-sale, Gross Unrealized Losses	3,324	7,383
Securities available-for-sale, Estimated Fair Value	377,122	360,783
U.S Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	3,792	5,868
Securities available-for-sale, Gross Unrealized Gains	96	173
Securities available-for-sale, Estimated Fair Value	3,888	6,041
Obligations Of States And Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	47,293	55,262
Securities available-for-sale, Gross Unrealized Gains	1,651	1,561
Securities available-for-sale, Gross Unrealized Losses	15	21
Securities available-for-sale, Estimated Fair Value	48,929	56,802
U.S. Government Agencies Mortgage-backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	279,336	220,815
Securities available-for-sale, Gross Unrealized Gains	7,231	6,966
Securities available-for-sale, Gross Unrealized Losses	85	168
Securities available-for-sale, Estimated Fair Value	286,482	227,613
Private Label [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	3,235	5,117
Securities available-for-sale, Gross Unrealized Gains	37	45
Securities available-for-sale, Gross Unrealized Losses		6
Securities available-for-sale, Estimated Fair Value	3,272	5,156
Trust Preferred Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	15,402	48,951
Securities available-for-sale, Gross Unrealized Gains	55	941
Securities available-for-sale, Gross Unrealized Losses	2,812	4,735
Securities available-for-sale, Estimated Fair Value	12,645	45,157
Corporate Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	16,152	16,226
Securities available-for-sale, Gross Unrealized Gains	207	160
Securities available-for-sale, Gross Unrealized Losses	412	1,988
Securities available-for-sale, Estimated Fair Value	15,947	14,398
Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	365,210	352,239
Securities available-for-sale, Gross Unrealized Gains	9,277	9,846
Securities available-for-sale, Gross Unrealized Losses	3,324	6,918
Securities available-for-sale, Estimated Fair Value	371,163	355,167
Marketable Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	3,381	4,318
Securities available-for-sale, Gross Unrealized Gains	804
Securities available-for-sale, Gross Unrealized Losses		465
Securities available-for-sale, Estimated Fair Value	4,185	3,853
Investment Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	1,724	1,724
Securities available-for-sale, Gross Unrealized Gains	50	39
Securities available-for-sale, Estimated Fair Value	$ 1,774	$ 1,763

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

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

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

-Paragraph 15D

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 12

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 16

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

-Paragraph 15C

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=7534914&loc=d3e22054-111558

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

-Paragraph 15E

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 13

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 14

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 22

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

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.

+ References+ Details

- Definition

This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

+ References+ Details