Income Taxes - Additional Information (Detail) (USD $)
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12 Months Ended | |||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Income Tax Disclosure [Line Items] | ||||
valuation allowance of deferred tax assets | $ 0us-gaap_DeferredTaxAssetsValuationAllowance | |||
General business credit carryforwards | 6,900,000us-gaap_TaxCreditCarryforwardAmount | |||
Alternative minimum tax credits | 3,300,000wsbc_AlternativeMinimumTaxCreditCarryforwardAmount | |||
Federal deferred tax assets net operating loss carryforwards | 600,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic | |||
Qualifying and non-qualifying tax bad debt reserves | 15,200,000wsbc_QualifyingAndNonQualifyingTaxBadDebtReserves | 15,200,000wsbc_QualifyingAndNonQualifyingTaxBadDebtReserves | ||
Provision for income taxes | 0wsbc_QualifyingAndNonQualifyingTaxBadDebtReservesIncomeTax | |||
Related amount of unrecognized deferred tax liability | 5,600,000us-gaap_DeferredTaxLiabilitiesDeferredExpenseReservesAndAccruals | 5,600,000us-gaap_DeferredTaxLiabilitiesDeferredExpenseReservesAndAccruals | ||
Federal and state income taxes applicable to securities transactions | 300,000wsbc_FederalIncomeTaxExpenseApplicableToSalesAndCallsOfSecurities | 200,000wsbc_FederalIncomeTaxExpenseApplicableToSalesAndCallsOfSecurities | 900,000wsbc_FederalIncomeTaxExpenseApplicableToSalesAndCallsOfSecurities | |
Unrecognized tax benefits and interest | 701,000us-gaap_UnrecognizedTaxBenefits | 673,000us-gaap_UnrecognizedTaxBenefits | 668,000us-gaap_UnrecognizedTaxBenefits | 784,000us-gaap_UnrecognizedTaxBenefits |
Unrecognized tax benefits that would affect the effective tax rate | 700,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate | |||
Accrued interest related to uncertain tax positions | $ 23,000us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued | $ 52,000us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued | ||
Earliest Tax Year [Member] | ||||
Income Tax Disclosure [Line Items] | ||||
Earliest year for tax examination | 2013 |
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences from reserves and accruals. No definition available.
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- Definition
Tax year that remains open to examination under enacted tax laws, in CCYY format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of interest expense accrued for an underpayment of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Alternative minimum tax credit carryforward amount. No definition available.
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- Definition
Federal income tax expense applicable to sales and calls of securities. No definition available.
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- Details
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- Definition
Qualifying and non qualifying tax bad debt reserves. No definition available.
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- Definition
Qualifying and non qualifying tax bad debt reserves income tax. No definition available.
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- Details
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