XML 82 R41.htm IDEA: XBRL DOCUMENT v2.4.1.9
Loans (Composition Of Loan Portfolio By Class Of Loan) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]      
Impaired Financing Receivable, Recorded Investment $ 70,492us-gaap_ImpairedFinancingReceivableRecordedInvestment $ 105,873us-gaap_ImpairedFinancingReceivableRecordedInvestment $ 73,712us-gaap_ImpairedFinancingReceivableRecordedInvestment
Loan balance 4,830,830us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome   4,829,682us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
Accrued interest receivable 17,979us-gaap_InterestReceivable   17,677us-gaap_InterestReceivable
Recorded Investment 4,844,496prk_LoansAndLeasesReceivableRecordedInvestment   4,843,311prk_LoansAndLeasesReceivableRecordedInvestment
Impaired Financing Receivable, Average Recorded Investment 72,000us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment 107,878us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment  
Impaired Financing Receivable, Interest Income, Cash Basis Method 562us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod 680us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod  
Commercial Financial And Agricultural [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Impaired Financing Receivable, Recorded Investment 20,571us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_CommercialFinancialAndAgriculturalMember		 19,835us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_CommercialFinancialAndAgriculturalMember		  
Impaired Financing Receivable, Average Recorded Investment 19,876us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_CommercialFinancialAndAgriculturalMember		 20,140us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_CommercialFinancialAndAgriculturalMember		  
Impaired Financing Receivable, Interest Income, Cash Basis Method 131us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_CommercialFinancialAndAgriculturalMember		 61us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_CommercialFinancialAndAgriculturalMember		  
Construction Real Estate, SEPH Commercial Land and Development [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Impaired Financing Receivable, Recorded Investment 2,077us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateSephCommercialLandAndDevelopmentMember		 4,102us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateSephCommercialLandAndDevelopmentMember		  
Loan balance 2,182us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateSephCommercialLandAndDevelopmentMember		 [1]   2,195us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateSephCommercialLandAndDevelopmentMember		 [1]
Accrued interest receivable 1us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateSephCommercialLandAndDevelopmentMember		 [1]   0us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateSephCommercialLandAndDevelopmentMember		 [1]
Recorded Investment 2,183prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateSephCommercialLandAndDevelopmentMember		 [1]   2,195prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateSephCommercialLandAndDevelopmentMember		 [1]
Impaired Financing Receivable, Average Recorded Investment 2,077us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateSephCommercialLandAndDevelopmentMember		 4,464us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateSephCommercialLandAndDevelopmentMember		  
Impaired Financing Receivable, Interest Income, Cash Basis Method 8us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateSephCommercialLandAndDevelopmentMember		 56us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateSephCommercialLandAndDevelopmentMember		  
Construction Real Estate - Remaining Commercial [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Impaired Financing Receivable, Recorded Investment 5,725us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateRemainingCommercialMember		 10,530us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateRemainingCommercialMember		  
Loan balance 109,820us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateRemainingCommercialMember		   115,139us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateRemainingCommercialMember
Accrued interest receivable 293us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateRemainingCommercialMember		   300us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateRemainingCommercialMember
Recorded Investment 110,113prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateRemainingCommercialMember		   115,439prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateRemainingCommercialMember
Impaired Financing Receivable, Average Recorded Investment 5,697us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateRemainingCommercialMember		 10,379us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateRemainingCommercialMember		  
Impaired Financing Receivable, Interest Income, Cash Basis Method 5us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateRemainingCommercialMember		 47us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateRemainingCommercialMember		  
Construction Real Estate - Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loan balance 30,886us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateMortgageMember		   31,148us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateMortgageMember
Accrued interest receivable 81us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateMortgageMember		   72us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateMortgageMember
Recorded Investment 30,967prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateMortgageMember		   31,220prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateMortgageMember
Construction Real Estate - Installment [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loan balance 6,887us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateInstallmentMember		   7,322us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateInstallmentMember
Accrued interest receivable 26us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateInstallmentMember		   23us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateInstallmentMember
Recorded Investment 6,913prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateInstallmentMember		   7,345prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ConstructionRealEstateInstallmentMember
Residential Real Estate - Commercial [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Impaired Financing Receivable, Recorded Investment 25,219us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateCommercialMember		 31,213us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateCommercialMember		  
Loan balance 412,724us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateCommercialMember		   417,612us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateCommercialMember
Accrued interest receivable 1,034us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateCommercialMember		   1,038us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateCommercialMember
Recorded Investment 413,758prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateCommercialMember		   418,650prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateCommercialMember
Impaired Financing Receivable, Average Recorded Investment 25,373us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateCommercialMember		 31,101us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateCommercialMember		  
Impaired Financing Receivable, Interest Income, Cash Basis Method 255us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateCommercialMember		 263us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateCommercialMember		  
Residential Real Estate - Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loan balance 1,197,202us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateMortgageMember		   1,189,709us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateMortgageMember
Accrued interest receivable 1,665us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateMortgageMember		   1,548us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateMortgageMember
Recorded Investment 1,198,867prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateMortgageMember		   1,191,257prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateMortgageMember
Residential Real Estate - HELOC [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loan balance 213,594us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateHomeEquityLineOfCreditMember		   216,915us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateHomeEquityLineOfCreditMember
Accrued interest receivable 820us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateHomeEquityLineOfCreditMember		   803us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateHomeEquityLineOfCreditMember
Recorded Investment 214,414prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateHomeEquityLineOfCreditMember		   217,718prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateHomeEquityLineOfCreditMember
Residential Real Estate - Installment [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loan balance 25,885us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateInstallmentMember		   27,139us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateInstallmentMember
Accrued interest receivable 91us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateInstallmentMember		   97us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateInstallmentMember
Recorded Investment 25,976prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateInstallmentMember		   27,236prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= prk_ResidentialRealEstateInstallmentMember
Loans Receivable [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Accrued interest receivable 13,666us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_LoansReceivableMember		   13,629us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_LoansReceivableMember
Commercial Financial And Agricultural [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loan balance 844,333us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= prk_CommercialFinancialAndAgriculturalMember		 [1]   856,535us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= prk_CommercialFinancialAndAgriculturalMember		 [1]
Accrued interest receivable 3,265us-gaap_InterestReceivable
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= prk_CommercialFinancialAndAgriculturalMember		 [1]   3,218us-gaap_InterestReceivable
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= prk_CommercialFinancialAndAgriculturalMember		 [1]
Recorded Investment 847,598prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= prk_CommercialFinancialAndAgriculturalMember		 [1]   859,753prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= prk_CommercialFinancialAndAgriculturalMember		 [1]
Commercial Real Estate [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Impaired Financing Receivable, Recorded Investment 16,900us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		 39,395us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		  
Loan balance 1,071,265us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		 [1]   1,069,637us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		 [1]
Accrued interest receivable 3,529us-gaap_InterestReceivable
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		 [1]   3,546us-gaap_InterestReceivable
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		 [1]
Recorded Investment 1,074,794prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		 [1]   1,073,183prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		 [1]
Impaired Financing Receivable, Average Recorded Investment 18,977us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		 40,995us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		  
Impaired Financing Receivable, Interest Income, Cash Basis Method 163us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		 253us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		  
Consumer [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Impaired Financing Receivable, Recorded Investment   798us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember		  
Loan balance 912,854us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember		   893,160us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
Accrued interest receivable 2,817us-gaap_InterestReceivable
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember		   2,967us-gaap_InterestReceivable
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
Recorded Investment 915,671prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember		   896,127prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
Impaired Financing Receivable, Average Recorded Investment   799us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember		  
Impaired Financing Receivable, Interest Income, Cash Basis Method 0us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember		  
Leases [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loan balance 3,198us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_FinanceLeasesPortfolioSegmentMember		   3,171us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_FinanceLeasesPortfolioSegmentMember
Accrued interest receivable 44us-gaap_InterestReceivable
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_FinanceLeasesPortfolioSegmentMember		   17us-gaap_InterestReceivable
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_FinanceLeasesPortfolioSegmentMember
Recorded Investment $ 3,242prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_FinanceLeasesPortfolioSegmentMember		   $ 3,188prk_LoansAndLeasesReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_FinanceLeasesPortfolioSegmentMember
[1] Included within commercial, financial and agricultural loans, commercial real estate loans, and SEPH commercial land and development loans is an immaterial amount of consumer loans that are not broken out by class.