Securities (Schedule of Securities Available-for-Sale) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 626,383	$ 614,085
Gross Unrealized Gains	10,130	5,885
Gross Unrealized Losses	(5,518)	(13,938)
Securities Available-for-Sale, at Fair Value	630,995us-gaap_AvailableForSaleSecurities	606,032us-gaap_AvailableForSaleSecurities
U.S. Treasury and Agency Securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	20,000	20,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(439)	(1,048)
Securities Available-for-Sale, at Fair Value	19,561	18,952
Obligations of State and Political Subdivisions
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	147,321	112,008
Gross Unrealized Gains	6,515	2,388
Gross Unrealized Losses	(59)	(899)
Securities Available-for-Sale, at Fair Value	153,777	113,497
Mortgage-backed Securities – Residential
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	458,709	481,724
Gross Unrealized Gains	3,615	3,497
Gross Unrealized Losses	(5,020)	(11,991)
Securities Available-for-Sale, at Fair Value	457,304	473,230
Equity Securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	353	353
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Securities Available-for-Sale, at Fair Value	$ 353	$ 353

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

No definition available.

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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.

+ 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

-Section 25

-Paragraph 1

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

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-Section 50

-Paragraph 5

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-Name Accounting Standards Codification

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+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.2)

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