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Loans (Loans Individually And Collectively Evaluated For Impairment) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2015 | Dec. 31, 2014
Financing Receivable, Impaired [Line Items] |  |
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | $ 5,064 us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1 | $ 3,660 us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
Nonaccrual and accruing restructured loans | 112,748 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans | 116,725 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 70,492 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment | 73,712 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 42,256 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment | 43,013 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment
Partial Charge-Offs On Impaired Loans | 25,792 prk_PartialChargeOffsOnImpairedLoans | 32,480 prk_PartialChargeOffsOnImpairedLoans
Commercial Financial And Agricultural [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 20,578 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_CommercialFinancialAndAgriculturalMember | 19,123 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_CommercialFinancialAndAgriculturalMember
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 20,571 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_CommercialFinancialAndAgriculturalMember | 19,106 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_CommercialFinancialAndAgriculturalMember
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 7 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_CommercialFinancialAndAgriculturalMember | 17 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_CommercialFinancialAndAgriculturalMember
Construction Real Estate, SEPH Commercial Land and Development [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 2,077 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateSephCommercialLandAndDevelopmentMember | 2,078 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateSephCommercialLandAndDevelopmentMember
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 2,077 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateSephCommercialLandAndDevelopmentMember | 2,078 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateSephCommercialLandAndDevelopmentMember
Construction Real Estate - Remaining Commercial [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 5,725 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateRemainingCommercialMember | 5,609 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateRemainingCommercialMember
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 5,725 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateRemainingCommercialMember | 5,609 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateRemainingCommercialMember
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 0 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateRemainingCommercialMember | 0 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateRemainingCommercialMember
Construction Real Estate - Mortgage [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 182 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateMortgageMember | 153 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateMortgageMember
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 0 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateMortgageMember | 0 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateMortgageMember
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 182 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateMortgageMember | 153 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateMortgageMember
Construction Real Estate - Installment [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 232 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateInstallmentMember | 240 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateInstallmentMember
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 0 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateInstallmentMember | 0 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateInstallmentMember
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 232 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateInstallmentMember | 240 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ConstructionRealEstateInstallmentMember
Residential Real Estate - Commercial [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 25,219 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateCommercialMember | 24,930 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateCommercialMember
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 25,219 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateCommercialMember | 24,930 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateCommercialMember
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 0 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateCommercialMember | 0 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateCommercialMember
Residential Real Estate - Mortgage [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 31,954 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateMortgageMember | 32,218 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateMortgageMember
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 0 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateMortgageMember | 0 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateMortgageMember
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 31,954 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateMortgageMember | 32,218 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateMortgageMember
Residential Real Estate - HELOC [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 2,602 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateHomeEquityLineOfCreditMember | 2,509 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateHomeEquityLineOfCreditMember
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 0 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateHomeEquityLineOfCreditMember | 0 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateHomeEquityLineOfCreditMember
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 2,602 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateHomeEquityLineOfCreditMember | 2,509 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateHomeEquityLineOfCreditMember
Residential Real Estate - Installment [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Nonaccrual and accruing restructured loans | 2,351 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateInstallmentMember | 2,522 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateInstallmentMember
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 0 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateInstallmentMember | 0 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateInstallmentMember
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 2,351 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateInstallmentMember | 2,522 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = prk_ResidentialRealEstateInstallmentMember
Commercial Real Estate [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 645 us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1 / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 262 us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1 / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember
Nonaccrual and accruing restructured loans | 16,900 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 21,989 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment | 16,900 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 21,989 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 0 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 0 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember
Consumer [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 0 us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1 / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember | 0 us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1 / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember
Nonaccrual and accruing restructured loans | 4,928 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember | 5,354 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment | 4,928 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember | 5,354 prk_FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember
Financing Receivable With No Related Allowance Recorded [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Partial Charge-Offs On Impaired Loans | $ 21,600 prk_PartialChargeOffsOnImpairedLoans / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = prk_FinancingReceivableWithNoRelatedAllowanceRecordedMember | $ 32,400 prk_PartialChargeOffsOnImpairedLoans / us-gaap_FinancingReceivableTroubledDebtRestructuringAxis = prk_FinancingReceivableWithNoRelatedAllowanceRecordedMember

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