XML 75 R66.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Fair Value (Narrative) (Details) (USD $) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Dec. 31, 2014 | Dec. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Loans Held-for-sale, Fair Value Disclosure | $ 7,987,000 us-gaap_LoansHeldForSaleFairValueDisclosure |  | $ 5,264,000 us-gaap_LoansHeldForSaleFairValueDisclosure |
Impaired Financing Receivable, Carrying Value | 65,428,000 prk_ImpairedFinancingReceivableCarryingValue |  | 70,052,000 prk_ImpairedFinancingReceivableCarryingValue |
Discount percentage applied to real estate appraised values | 15.00%prk_DiscountPercentageAppliedToRealEstateAppraisedValues |  |  |
Discount percentage applied to lot development appraised values | 6.00%prk_DiscountPercentageAppliedToLotDevelopmentAppraisedValues |  |  |
Partial Charge-Offs On Impaired Loans | 25,792,000 prk_PartialChargeOffsOnImpairedLoans |  | 32,480,000 prk_PartialChargeOffsOnImpairedLoans |
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 5,064,000 us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1 |  | 3,660,000 us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1 |
Impaired Financing Receivable, Related Allowance | 5,064,000 us-gaap_ImpairedFinancingReceivableRelatedAllowance |  | 3,660,000 us-gaap_ImpairedFinancingReceivableRelatedAllowance |
Impaired loans carried at fair value | 9,295,000 prk_ImpairedLoanFairValue |  | 16,963,000 prk_ImpairedLoanFairValue |
Partial Charge-Offs On Impaired Loans carried at Fair Value | 13,228,000 prk_PartialChargeOffsOnImpairedLoansCarriedAtFairValue |  | 19,731,000 prk_PartialChargeOffsOnImpairedLoansCarriedAtFairValue |
Book Value Of Impaired Loans Carried At Fair Value | 12,520,000 prk_BookValueOfImpairedLoansCarriedAtFairValue |  | 19,643,000 prk_BookValueOfImpairedLoansCarriedAtFairValue |
Impaired Financing Receivable, carried at fair value, related expense | 1,000,000 prk_ImpairedFinancingReceivableCarriedAtFairValueRelatedExpense | 2,200,000 prk_ImpairedFinancingReceivableCarriedAtFairValueRelatedExpense |  |
MSR recorded at lower of cost or fair value | 8,312,000 us-gaap_ServicingAssetAtAmortizedValue | 8,778,000 us-gaap_ServicingAssetAtAmortizedValue | 8,613,000 us-gaap_ServicingAssetAtAmortizedValue | 9,013,000 us-gaap_ServicingAssetAtAmortizedValue
Mortgage Servicing Rights Fair Value | 4,700,000 prk_MortgageServicingRightsFairValue |  | 2,900,000 prk_MortgageServicingRightsFairValue |
Valuation allowance of MSR | 1,048,000 us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance | 1,031,000 us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance | 826,000 us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance | 1,031,000 us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance
MSRs recorded at cost | 3,600,000 prk_ServicingAssetRecordedAtCost |  | 5,700,000 prk_ServicingAssetRecordedAtCost |
Changes due to fair value adjustments | 222,000 us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries | 0 us-gaap_ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries |  |
Other Real Estate, Foreclosed Assets, and Repossessed Assets | 26,337,000 us-gaap_OtherRealEstateAndForeclosedAssets |  | 22,605,000 us-gaap_OtherRealEstateAndForeclosedAssets |
Percent of OREO held at fair value | 37.56312%prk_PercentofOREOheldatfairvalue |  | 45.61823%prk_PercentofOREOheldatfairvalue |
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Fair Value | 9,900,000 prk_OtherRealEstateForeclosedAssetsAndRepossessedAssetsFairValue |  | 10,312,000 prk_OtherRealEstateForeclosedAssetsAndRepossessedAssetsFairValue |
OREO valuation adjustments | 304,000 prk_OreoDevaluations | 416,000 prk_OreoDevaluations |  |
Commercial Receivables, excluding Commercial, Financial, and Agricultural [Domain] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Impaired Financing Receivable, Related Allowance | 3,225,000 us-gaap_ImpairedFinancingReceivableRelatedAllowance / us-gaap_FairValueByAssetClassAxis = prk_CommercialReceivablesExcludingCommercialFinancialAndAgriculturalDomain |  | 2,680,000 us-gaap_ImpairedFinancingReceivableRelatedAllowance / us-gaap_FairValueByAssetClassAxis = prk_CommercialReceivablesExcludingCommercialFinancialAndAgriculturalDomain |
Financing Receivable, not collateral dependent [Domain] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Impaired Financing Receivable, Related Allowance | 1,839,000 us-gaap_ImpairedFinancingReceivableRelatedAllowance / us-gaap_FairValueByAssetClassAxis = prk_FinancingReceivableNotCollateralDependentDomain |  | 980,000 us-gaap_ImpairedFinancingReceivableRelatedAllowance / us-gaap_FairValueByAssetClassAxis = prk_FinancingReceivableNotCollateralDependentDomain |
Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment | 645,000 us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1 / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember |  | 262,000 us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1 / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember |
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Impaired loans carried at fair value |  |  | $ 8,481,000 prk_ImpairedLoanFairValue / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember |
Sales Comparison Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Fair Value Inputs, Comparability Adjustments | 137.30%us-gaap_FairValueInputsComparabilityAdjustments / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ValuationTechniqueAxis = prk_SalesComparisonApproachValuationTechniqueMember |  | 84.00%us-gaap_FairValueInputsComparabilityAdjustments / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ValuationTechniqueAxis = prk_SalesComparisonApproachValuationTechniqueMember |
Sales Comparison Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Residential [Member] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Fair Value Inputs, Comparability Adjustments | 51.20%us-gaap_FairValueInputsComparabilityAdjustments / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = prk_OtherRealEstateOwnedResidentialMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ValuationTechniqueAxis = prk_SalesComparisonApproachValuationTechniqueMember |  | 38.30%us-gaap_FairValueInputsComparabilityAdjustments / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = prk_OtherRealEstateOwnedResidentialMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ValuationTechniqueAxis = prk_SalesComparisonApproachValuationTechniqueMember |
Sales Comparison Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Fair Value Inputs, Comparability Adjustments | 25.80%us-gaap_FairValueInputsComparabilityAdjustments / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_RangeAxis = us-gaap_WeightedAverageMember / us-gaap_ValuationTechniqueAxis = prk_SalesComparisonApproachValuationTechniqueMember |  | 38.80%us-gaap_FairValueInputsComparabilityAdjustments / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_RangeAxis = us-gaap_WeightedAverageMember / us-gaap_ValuationTechniqueAxis = prk_SalesComparisonApproachValuationTechniqueMember |
Sales Comparison Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Residential [Member] | Real Estate [Member] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Fair Value Inputs, Comparability Adjustments | 10.50%us-gaap_FairValueInputsComparabilityAdjustments / us-gaap_FairValueByAssetClassAxis = us-gaap_RealEstateMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = prk_OtherRealEstateOwnedResidentialMember / us-gaap_RangeAxis = us-gaap_WeightedAverageMember / us-gaap_ValuationTechniqueAxis = prk_SalesComparisonApproachValuationTechniqueMember |  | 10.10%us-gaap_FairValueInputsComparabilityAdjustments / us-gaap_FairValueByAssetClassAxis = us-gaap_RealEstateMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = prk_OtherRealEstateOwnedResidentialMember / us-gaap_RangeAxis = us-gaap_WeightedAverageMember / us-gaap_ValuationTechniqueAxis = prk_SalesComparisonApproachValuationTechniqueMember |
Sales Comparison Approach Valuation Technique [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Fair Value Inputs, Comparability Adjustments | 0.00%us-gaap_FairValueInputsComparabilityAdjustments / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ValuationTechniqueAxis = prk_SalesComparisonApproachValuationTechniqueMember |  | 0.00%us-gaap_FairValueInputsComparabilityAdjustments / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ValuationTechniqueAxis = prk_SalesComparisonApproachValuationTechniqueMember |
Sales Comparison Approach Valuation Technique [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Residential [Member] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Fair Value Inputs, Comparability Adjustments | 0.00%us-gaap_FairValueInputsComparabilityAdjustments / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = prk_OtherRealEstateOwnedResidentialMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ValuationTechniqueAxis = prk_SalesComparisonApproachValuationTechniqueMember |  | 0.00%us-gaap_FairValueInputsComparabilityAdjustments / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = prk_OtherRealEstateOwnedResidentialMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ValuationTechniqueAxis = prk_SalesComparisonApproachValuationTechniqueMember |
Cost Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Fair Value Inputs, Accumulated Depreciation | 50.00%prk_FairValueInputsAccumulatedDepreciation / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ValuationTechniqueAxis = us-gaap_CostApproachValuationTechniqueMember |  | 23.00%prk_FairValueInputsAccumulatedDepreciation / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ValuationTechniqueAxis = us-gaap_CostApproachValuationTechniqueMember |
Cost Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Residential [Member] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Fair Value Inputs, Accumulated Depreciation | 60.00%prk_FairValueInputsAccumulatedDepreciation / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = prk_OtherRealEstateOwnedResidentialMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ValuationTechniqueAxis = us-gaap_CostApproachValuationTechniqueMember |  |  |
Cost Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Fair Value Inputs, Accumulated Depreciation | 37.60%prk_FairValueInputsAccumulatedDepreciation / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_RangeAxis = us-gaap_WeightedAverageMember / us-gaap_ValuationTechniqueAxis = us-gaap_CostApproachValuationTechniqueMember |  | 23.00%prk_FairValueInputsAccumulatedDepreciation / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_RangeAxis = us-gaap_WeightedAverageMember / us-gaap_ValuationTechniqueAxis = us-gaap_CostApproachValuationTechniqueMember |
Cost Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Residential [Member] | Real Estate [Member] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Fair Value Inputs, Accumulated Depreciation | 60.00%prk_FairValueInputsAccumulatedDepreciation / us-gaap_FairValueByAssetClassAxis = us-gaap_RealEstateMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = prk_OtherRealEstateOwnedResidentialMember / us-gaap_RangeAxis = us-gaap_WeightedAverageMember / us-gaap_ValuationTechniqueAxis = us-gaap_CostApproachValuationTechniqueMember |  |  |
Cost Approach Valuation Technique [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Fair Value Inputs, Accumulated Depreciation | 23.00%prk_FairValueInputsAccumulatedDepreciation / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ValuationTechniqueAxis = us-gaap_CostApproachValuationTechniqueMember |  | 23.00%prk_FairValueInputsAccumulatedDepreciation / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ValuationTechniqueAxis = us-gaap_CostApproachValuationTechniqueMember |
Cost Approach Valuation Technique [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Residential [Member] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Fair Value Inputs, Accumulated Depreciation | 60.00%prk_FairValueInputsAccumulatedDepreciation / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = prk_OtherRealEstateOwnedResidentialMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ValuationTechniqueAxis = us-gaap_CostApproachValuationTechniqueMember |  |  |
Bulk Sale Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Fair Value Inputs, Discount Rate | 8.00%us-gaap_FairValueInputsDiscountRate / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ValuationTechniqueAxis = prk_BulkSaleApproachValuationTechniqueMember |  |  |
Bulk Sale Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Fair Value Inputs, Discount Rate | 8.00%us-gaap_FairValueInputsDiscountRate / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_RangeAxis = us-gaap_WeightedAverageMember / us-gaap_ValuationTechniqueAxis = prk_BulkSaleApproachValuationTechniqueMember |  |  |
Bulk Sale Approach Valuation Technique [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Fair Value Inputs, Discount Rate | 8.00%us-gaap_FairValueInputsDiscountRate / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsNonrecurringMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ValuationTechniqueAxis = prk_BulkSaleApproachValuationTechniqueMember |  |  |

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- Definition Percentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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