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Restructured Loans

No definition available.

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Data Type:	xbrli:monetaryItemType
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Recorded investment in financing receivables that are 90 days or more past due and still accruing.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Data Type:	xbrli:stringItemType
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Period Type:	duration

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=prk_CommercialFinancialAndAgriculturalMember
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Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=prk_ConstructionRealEstateCommercialDomain
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Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=prk_ConstructionRealEstateMortgageMember
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Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=prk_ConstructionRealEstateInstallmentMember
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Data Type:	na
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Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=prk_ResidentialRealEstateCommercialMember
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Data Type:	na
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Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=prk_ResidentialRealEstateMortgageMember
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Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
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