Effective Income Tax Reconciliation, Income from life insurance

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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-Publisher FASB

-Name Accounting Standards Codification

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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-Glossary Income Tax Expense (or Benefit)

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible impairment loss.

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Income Taxes (Reconciliation of Expected Income Tax Benefit Computed Using Federal Statutory Income Tax Rate) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Computed tax expense									$ 12,604	$ 12,220	$ 12,008
Tax exempt income									(704)	(510)	(623)
Income from life insurance									(503)	(459)	(484)
State taxes, net of federal benefit									328	260	297
Low income housing credits									(286)	(299)	(328)
Goodwill impairment									0	991	0
Other									1	(71)	12
Income tax expense	$ 2,523us-gaap_IncomeTaxExpenseBenefit	$ 3,154us-gaap_IncomeTaxExpenseBenefit	$ 3,001us-gaap_IncomeTaxExpenseBenefit	$ 2,762us-gaap_IncomeTaxExpenseBenefit	$ 3,560us-gaap_IncomeTaxExpenseBenefit	$ 2,952us-gaap_IncomeTaxExpenseBenefit	$ 2,952us-gaap_IncomeTaxExpenseBenefit	$ 2,668us-gaap_IncomeTaxExpenseBenefit	$ 11,440us-gaap_IncomeTaxExpenseBenefit	$ 12,132us-gaap_IncomeTaxExpenseBenefit	$ 10,882us-gaap_IncomeTaxExpenseBenefit
Income tax rate used for calculations									35.00%	35.00%