XML 81 R70.htm IDEA: XBRL DOCUMENT
v3.20.2

Allowance For Loan Losses (Composition Of The Allowance For Loan Losses) (Details) - USD ($) | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Allowance for loan losses individually evaluated for impairment |  | $ 8,666,000 | $ 5,230,000
Allowance for loan losses collectively evaluated for impairment |  | 78,269,000 | 51,181,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net |  | 103,000 | 268,000
Total ending allowance balance |  | 87,038,000 | 56,679,000
Loans individually evaluated for impairment |  | 116,138,000 | 77,459,000
Loans collectively evaluated for impairment |  | 7,150,531,000 | 6,409,614,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance |  | 11,877,000 | 14,331,000
Total ending loan balance, net of accrued interest receivable |  | $ 7,278,546,000 | $ 6,501,404,000
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment |  | 7.46% | 6.75%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment |  | 1.09% | 0.80%
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance as a percentage of loan balance |  | 0.87% | 1.87%
Total ending allowance for loan losses balance as a percentage of loan balance |  | 1.20% | 0.87%
Loans And Leases Receivable, Recorded Investment, Individually Evaluated for Impairment |  | $ 116,180,000 | $ 77,491,000
Recorded investment collectively evaluated for impairment |  | 7,173,010,000 | 6,428,693,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net |  | 11,991,000 | 14,441,000
Recorded Investment |  | 7,301,181,000 | 6,520,625,000
Commercial Financial And Agricultural [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Allowance for loan losses individually evaluated for impairment |  | 5,033,000 | 5,104,000
Allowance for loan losses collectively evaluated for impairment |  | 21,913,000 | 14,948,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net |  | 41,000 | 151,000
Total ending allowance balance |  | 26,987,000 | 20,203,000
Loans individually evaluated for impairment |  | 33,075,000 | 33,077,000
Loans collectively evaluated for impairment |  | 1,693,568,000 | 1,151,073,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance |  | 373,000 | 960,000
Total ending loan balance, net of accrued interest receivable | [1] | $ 1,727,016,000 | $ 1,185,110,000
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment |  | 15.22% | 15.43%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment |  | 1.29% | 1.30%
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance as a percentage of loan balance |  | 10.99% | 15.73%
Total ending allowance for loan losses balance as a percentage of loan balance |  | 1.56% | 1.70%
Loans And Leases Receivable, Recorded Investment, Individually Evaluated for Impairment |  | $ 33,098,000 | $ 33,088,000
Recorded investment collectively evaluated for impairment |  | 1,700,477,000 | 1,155,449,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net |  | 375,000 | 966,000
Recorded Investment | [1] | 1,733,950,000 | 1,189,503,000
Commercial Real Estate [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Allowance for loan losses individually evaluated for impairment |  | 3,014,000 | 35,000
Allowance for loan losses collectively evaluated for impairment |  | 19,872,000 | 10,187,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net |  | 2,000 | 7,000
Total ending allowance balance |  | 22,888,000 | 10,229,000
Loans individually evaluated for impairment |  | 72,499,000 | 41,770,000
Loans collectively evaluated for impairment |  | 1,608,993,000 | 1,558,550,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance |  | 7,985,000 | 9,093,000
Total ending loan balance, net of accrued interest receivable | [1] | $ 1,689,477,000 | $ 1,609,413,000
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment |  | 4.16% | 0.08%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment |  | 1.24% | 0.65%
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance as a percentage of loan balance |  | 0.03% | 0.08%
Total ending allowance for loan losses balance as a percentage of loan balance |  | 1.35% | 0.64%
Loans And Leases Receivable, Recorded Investment, Individually Evaluated for Impairment |  | $ 72,519,000 | $ 41,791,000
Recorded investment collectively evaluated for impairment |  | 1,615,685,000 | 1,564,011,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net |  | 8,084,000 | 9,182,000
Recorded Investment | [1] | 1,696,288,000 | 1,614,984,000
Construction Real Estate [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Allowance for loan losses individually evaluated for impairment |  | 0 | 0
Allowance for loan losses collectively evaluated for impairment |  | 8,407,000 | 5,311,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net |  | 0 | 0
Total ending allowance balance |  | 8,407,000 | 5,311,000
Loans individually evaluated for impairment |  | 3,142,000 | 453,000
Loans collectively evaluated for impairment |  | 354,845,000 | 330,106,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance |  | 1,009,000 | 1,140,000
Total ending loan balance, net of accrued interest receivable |  | $ 358,996,000 | $ 331,699,000
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment |  | 0.00% | 0.00%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment |  | 2.37% | 1.61%
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance as a percentage of loan balance |  | 0.00% | 0.00%
Total ending allowance for loan losses balance as a percentage of loan balance |  | 2.34% | 1.60%
Loans And Leases Receivable, Recorded Investment, Individually Evaluated for Impairment |  | $ 3,142,000 | $ 453,000
Recorded investment collectively evaluated for impairment |  | 355,806,000 | 331,161,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net |  | 1,012,000 | 1,143,000
Recorded Investment |  | 359,960,000 | 332,757,000
Residential Real Estate [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Allowance for loan losses individually evaluated for impairment |  | 155,000 | 42,000
Allowance for loan losses collectively evaluated for impairment |  | 10,993,000 | 8,458,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net |  | 60,000 | 110,000
Total ending allowance balance |  | 11,208,000 | 8,610,000
Loans individually evaluated for impairment |  | 4,898,000 | 2,025,000
Loans collectively evaluated for impairment |  | 1,815,628,000 | 1,888,088,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance |  | 2,383,000 | 2,613,000
Total ending loan balance, net of accrued interest receivable |  | $ 1,822,909,000 | $ 1,892,726,000
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment |  | 3.16% | 2.07%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment |  | 0.61% | 0.45%
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance as a percentage of loan balance |  | 2.52% | 4.21%
Total ending allowance for loan losses balance as a percentage of loan balance |  | 0.61% | 0.45%
Loans And Leases Receivable, Recorded Investment, Individually Evaluated for Impairment |  | $ 4,897,000 | $ 2,025,000
Recorded investment collectively evaluated for impairment |  | 1,819,008,000 | 1,891,941,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net |  | 2,393,000 | 2,625,000
Recorded Investment |  | 1,826,298,000 | 1,896,591,000
Consumer [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Allowance for loan losses individually evaluated for impairment |  | 0 | 0
Allowance for loan losses collectively evaluated for impairment |  | 16,969,000 | 12,211,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net |  | 0 | 0
Total ending allowance balance |  | 16,969,000 | 12,211,000
Loans individually evaluated for impairment |  | 0 | 0
Loans collectively evaluated for impairment |  | 1,652,638,000 | 1,452,373,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance |  | 0 | 2,000
Total ending loan balance, net of accrued interest receivable |  | $ 1,652,638,000 | $ 1,452,375,000
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment |  | 0.00% | 0.00%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment |  | 1.03% | 0.84%
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance as a percentage of loan balance |  | 0.00% | 0.00%
Total ending allowance for loan losses balance as a percentage of loan balance |  | 1.03% | 0.84%
Loans And Leases Receivable, Recorded Investment, Individually Evaluated for Impairment |  | $ 0 | $ 0
Recorded investment collectively evaluated for impairment |  | 1,657,153,000 | 1,456,687,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net |  | 0 | 2,000
Recorded Investment |  | 1,657,153,000 | 1,456,689,000
Finance Leases Portfolio Segment [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Allowance for loan losses individually evaluated for impairment |  | 464,000 | 49,000
Allowance for loan losses collectively evaluated for impairment |  | 115,000 | 66,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net |  | 0 | 0
Total ending allowance balance |  | 579,000 | 115,000
Loans individually evaluated for impairment |  | 2,524,000 | 134,000
Loans collectively evaluated for impairment |  | 24,859,000 | 29,424,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance |  | 127,000 | 523,000
Total ending loan balance, net of accrued interest receivable |  | $ 27,510,000 | $ 30,081,000
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment |  | 18.38% | 36.57%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment |  | 0.46% | 0.22%
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance as a percentage of loan balance |  | 0.00% | 0.00%
Total ending allowance for loan losses balance as a percentage of loan balance |  | 2.10% | 0.38%
Loans And Leases Receivable, Recorded Investment, Individually Evaluated for Impairment |  | $ 2,524,000 | $ 134,000
Recorded investment collectively evaluated for impairment |  | 24,881,000 | 29,444,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net |  | 127,000 | 523,000
Recorded Investment |  | 27,532,000 | 30,101,000
Purchased credit impaired [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Loans and Leases Receivable, Gross |  | 11,128,000 | 13,469,000
Purchased credit impaired [Member] | Commercial Real Estate [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Loans and Leases Receivable, Gross |  | $ 8,084,000 | 9,182,000
Purchased credit impaired [Member] | Financial Asset Acquired with Credit Deterioration [Member] | Nonperforming Financial Instruments [Member] | Commercial Portfolio Segment [Member] |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Allowance for loan losses individually evaluated for impairment |  |  | 0
Recorded Investment |  |  | 6,000
Loans and Leases Receivable, Gross |  |  | $ 5,000
[1] | Included within each of commercial, financial and agricultural loans and commercial real estate loans is an immaterial amount of consumer loans that are not broken out by class.

X
- Definition Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance as a percentage of loan balance + References No definition available. + Details
Name: | prk_CertainLoansAcquiredinTransferNotAccountedforasDebtSecuritiesAllowanceasapercentageofloanbalance
Namespace Prefix: | prk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Loans And Leases Receivable, Ratio Of Allowance For Loan Losses To Total Loans + References No definition available. + Details
Name: | prk_LoansAndLeasesReceivableRatioOfAllowanceForLoanLossesToTotalLoans
Namespace Prefix: | prk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Loans And Leases Receivable, Ratio Of Allowance For Loan Losses To Total Loans, Collectively Evaluated for Impairment + References No definition available. + Details
Name: | prk_LoansAndLeasesReceivableRatioOfAllowanceForLoanLossesToTotalLoansCollectivelyEvaluatedForImpairment
Namespace Prefix: | prk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Loans And Leases Receivable, Ratio Of Allowance For Loan Losses To Total Loans, Individually Evaluated for Impairment + References No definition available. + Details
Name: | prk_LoansAndLeasesReceivableRatioOfAllowanceForLoanLossesToTotalLoansIndividuallyEvaluatedForImpairment
Namespace Prefix: | prk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Loans and Leases Receivable, Recorded Investment + References No definition available. + Details
Name: | prk_LoansAndLeasesReceivableRecordedInvestment
Namespace Prefix: | prk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loans And Leases Receivable, Recorded Investment, Collectively Evaluated for Impairment + References No definition available. + Details
Name: | prk_LoansAndLeasesReceivableRecordedInvestmentCollectivelyEvaluatedForImpairment
Namespace Prefix: | prk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loans And Leases Receivable, Recorded Investment, Individually Evaluated for Impairment + References No definition available. + Details
Name: | prk_LoansAndLeasesReceivableRecordedInvestmentIndividuallyEvaluatedForImpairment
Namespace Prefix: | prk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Reserve for loans impairments recorded after acquisition as a result of current information and events which result in it being probable that estimated cash flows will be less than previously expected or because actual cash flows are less than cash flows previously expected. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that was acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121585399&loc=d3e13503-111538 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 + Details
Name: | us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121585399&loc=d3e13503-111538 + Details
Name: | us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The undiscounted sum of all amounts, including amounts deemed principal, interest, fees, penalties, and other under the loan, owed to the investor at the reporting date, whether or not currently due and whether or not any such amounts have been written or charged off by the investor. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121585399&loc=d3e13503-111538 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 + Details
Name: | us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition 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. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 + Details
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5074-111524 + Details
Name: | us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=prk_CommercialFinancialAndAgriculturalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=prk_ConstructionRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_FinanceLeasesPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=prk_PurchasedcreditimpairedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditLossStatusAxis=us-gaap_FinancialAssetAcquiredWithCreditDeteriorationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_NonperformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |