$PRK
Park National Corp Stock $prk

$prk Overview Financials Valuation SEC Filings Company Website

2018 Q4 Form 10-K Financial Statement

#000080567620000040 Filed on February 28, 2020

Income Statement

Concept	2018 Q4	2018 Q3	2018 Q2
Revenue	$82.17M	$80.23M	$74.69M
YoY Change		9.57%	5.98%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$2.200M	$2.100M	$2.200M
YoY Change	4.76%	-4.55%	0.0%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$12.54M	$12.55M	$9.949M
YoY Change		7.54%	-7.0%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$30.57M	$29.48M	$34.06M
YoY Change	-8.76%	-3.48%	29.31%
Income Tax	$4.300M	$4.722M	$5.823M
% Of Pretax Income	14.07%	16.02%	17.09%
Net Earnings	$26.26M	$24.76M	$28.24M
YoY Change	15.18%	11.98%	48.39%
Net Earnings / Revenue	31.96%	30.86%	37.81%
Basic Earnings Per Share	$1.67	$1.58	$1.85
Diluted Earnings Per Share	$1.67	$1.56	$1.83
COMMON SHARES
Basic Shares Outstanding	15.70B shares	15.69B shares	15.29B shares
Diluted Shares Outstanding		15.83B shares	15.42B shares

Balance Sheet

Concept	2018 Q4	2018 Q3	2018 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.171B
YoY Change
Cash & Equivalents	$167.2M	$144.6M	$146.2M
Short-Term Investments	$1.003B
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses	$94.08M
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$59.77M	$57.52M	$55.56M
YoY Change	6.92%	2.38%	-0.99%
Goodwill	$112.7M	$112.7M	$72.33M
YoY Change	55.86%	55.86%	0.0%
Intangibles	$6.971M
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$7.804B	$7.756B	$7.462B
YoY Change	3.54%	-1.35%	-4.72%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$3.000M	$3.000M	$2.000M
YoY Change	50.0%	0.0%	0.0%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$222.0M	$179.8M	$216.1M
YoY Change	-43.27%	-6.78%	17.6%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$3.000M	$3.000M	$2.000M
YoY Change	50.0%	0.0%	0.0%
LONG-TERM LIABILITIES
Long-Term Debt	$15.00M	$15.00M	$15.00M
YoY Change	0.0%	0.0%	0.0%
Other Long-Term Liabilities	$71.00M	$70.00M	$58.00M
YoY Change	26.79%	0.0%	-17.14%
Total Long-Term Liabilities	$86.00M	$85.00M	$73.00M
YoY Change	21.13%	0.0%	-14.12%
TOTAL LIABILITIES
Total Short-Term Liabilities	$3.000M	$3.000M	$2.000M
Total Long-Term Liabilities	$86.00M	$85.00M	$73.00M
Total Liabilities	$6.972B	$6.947B	$6.707B
YoY Change	2.81%	-2.2%	-5.27%
SHAREHOLDERS EQUITY
Retained Earnings	$614.1M	$603.1M	$593.5M
YoY Change	9.28%	8.97%	8.74%
Common Stock	$358.6M	$357.7M	$308.1M
YoY Change	16.53%	16.46%	0.56%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$90.37M	$91.56M	$91.56M
YoY Change	3.78%	3.8%	6.15%
Treasury Stock Shares	888.0K shares	899.6K shares	899.6K shares
Shareholders Equity	$833.0M	$809.0M	$755.0M
YoY Change
Total Liabilities & Shareholders Equity	$7.804B	$7.756B	$7.462B
YoY Change	3.54%	-1.35%	-4.72%

Cashflow Statement

Concept	2018 Q4	2018 Q3	2018 Q2
OPERATING ACTIVITIES
Net Income	$26.26M	$24.76M	$28.24M
YoY Change	15.18%	11.98%	48.39%
Depreciation, Depletion And Amortization	$2.200M	$2.100M	$2.200M
YoY Change	4.76%	-4.55%	0.0%
Cash From Operating Activities	$35.00M	$36.70M	$38.20M
YoY Change	64.32%	37.45%	126.04%
INVESTING ACTIVITIES
Capital Expenditures	-$4.400M	-$3.100M	-$1.500M
YoY Change	120.0%	24.0%	36.36%
Acquisitions
YoY Change
Other Investing Activities	-$16.80M	$37.20M	-$81.60M
YoY Change	-175.0%	287.5%	42.91%
Cash From Investing Activities	-$21.30M	$34.00M	-$83.00M
YoY Change	-204.41%	378.87%	42.61%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	8.900M	-72.30M	-85.60M
YoY Change	-102.76%	-1414.55%	-241.25%
NET CHANGE
Cash From Operating Activities	35.00M	36.70M	38.20M
Cash From Investing Activities	-21.30M	34.00M	-83.00M
Cash From Financing Activities	8.900M	-72.30M	-85.60M
Net Change In Cash	22.60M	-1.600M	-130.4M
YoY Change	-108.03%	-104.07%	-775.65%
FREE CASH FLOW
Cash From Operating Activities	$35.00M	$36.70M	$38.20M
Capital Expenditures	-$4.400M	-$3.100M	-$1.500M
Free Cash Flow	$39.40M	$39.80M	$39.70M
YoY Change	69.1%	36.3%	120.56%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2019	dei	Entity Registrant Name EntityRegistrantName	PARK NATIONAL CORPORATION
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	OH
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CY2019	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	17494000	USD
CY2018	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	12375000	USD
CY2017	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	9629000	USD
CY2019	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	2476000	USD
CY2018	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	1600000	USD
CY2017	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	992000	USD
CY2019	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	9445000	USD
CY2018	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	10113000	USD
CY2017	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	22580000	USD
CY2019	us-gaap	Interest Expense InterestExpense	62763000	USD
CY2018	us-gaap	Interest Expense InterestExpense	43903000	USD
CY2017	us-gaap	Interest Expense InterestExpense	42665000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	297737000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	266898000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	243759000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	6171000	USD
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	7945000	USD
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	8557000	USD
CY2019	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	291566000	USD
CY2018	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	258953000	USD
CY2017	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	235202000	USD
CY2019	prk	Checkcard Fee Income CheckcardFeeIncome	20250000	USD
CY2018	prk	Checkcard Fee Income CheckcardFeeIncome	17317000	USD
CY2017	prk	Checkcard Fee Income CheckcardFeeIncome	15798000	USD
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	4557000	USD
CY2018	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	6815000	USD
CY2017	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	4858000	USD
CY2019	prk	Atm Fees AtmFees	1828000	USD
CY2018	prk	Atm Fees AtmFees	1978000	USD
CY2017	prk	Atm Fees AtmFees	2253000	USD
CY2019	prk	Oreo Devaluations OreoDevaluations	225000	USD
CY2018	prk	Oreo Devaluations OreoDevaluations	491000	USD
CY2017	prk	Oreo Devaluations OreoDevaluations	458000	USD
CY2019	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-222000	USD
CY2018	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	4235000	USD
CY2017	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	251000	USD
CY2019	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-421000	USD
CY2018	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-2271000	USD
CY2017	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	1821000	USD
CY2019	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	5118000	USD
CY2018	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	4616000	USD
CY2017	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	1210000	USD
CY2019	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	4732000	USD
CY2018	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	6820000	USD
CY2017	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	5794000	USD
CY2019	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	0	USD
CY2018	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	2826000	USD
CY2017	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	0	USD
CY2019	us-gaap	Noninterest Income Other NoninterestIncomeOther	7473000	USD
CY2018	us-gaap	Noninterest Income Other NoninterestIncomeOther	7236000	USD
CY2017	us-gaap	Noninterest Income Other NoninterestIncomeOther	5352000	USD
CY2019	us-gaap	Noninterest Income NoninterestIncome	97193000	USD
CY2018	us-gaap	Noninterest Income NoninterestIncome	101101000	USD
CY2017	us-gaap	Noninterest Income NoninterestIncome	86429000	USD
CY2019	us-gaap	Labor And Related Expense LaborAndRelatedExpense	119514000	USD
CY2018	us-gaap	Labor And Related Expense LaborAndRelatedExpense	103755000	USD
CY2017	us-gaap	Labor And Related Expense LaborAndRelatedExpense	92177000	USD
CY2019	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	36806000	USD
CY2018	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	30289000	USD
CY2017	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	24937000	USD
CY2019	us-gaap	Occupancy Net OccupancyNet	12815000	USD
CY2018	us-gaap	Occupancy Net OccupancyNet	11251000	USD
CY2017	us-gaap	Occupancy Net OccupancyNet	10201000	USD
CY2019	us-gaap	Equipment Expense EquipmentExpense	17032000	USD
CY2018	us-gaap	Equipment Expense EquipmentExpense	16139000	USD
CY2017	us-gaap	Equipment Expense EquipmentExpense	15324000	USD
CY2019	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	10750000	USD
CY2018	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	8477000	USD
CY2017	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	7250000	USD
CY2019	us-gaap	Professional Fees ProfessionalFees	33317000	USD
CY2018	us-gaap	Professional Fees ProfessionalFees	28894000	USD
CY2017	us-gaap	Professional Fees ProfessionalFees	24833000	USD
CY2019	us-gaap	Marketing Expense MarketingExpense	5753000	USD
CY2018	us-gaap	Marketing Expense MarketingExpense	5144000	USD
CY2017	us-gaap	Marketing Expense MarketingExpense	4374000	USD
CY2019	us-gaap	General Insurance Expense GeneralInsuranceExpense	3130000	USD
CY2018	us-gaap	General Insurance Expense GeneralInsuranceExpense	5289000	USD
CY2017	us-gaap	General Insurance Expense GeneralInsuranceExpense	6354000	USD
CY2019	us-gaap	Communication Communication	5351000	USD
CY2018	us-gaap	Communication Communication	4981000	USD
CY2017	us-gaap	Communication Communication	4826000	USD
CY2019	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	3829000	USD
CY2018	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	3813000	USD
CY2017	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	3583000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2355000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	578000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	0	USD
CY2019	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	13336000	USD
CY2018	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	10145000	USD
CY2017	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	9303000	USD
CY2019	us-gaap	Noninterest Expense NoninterestExpense	263988000	USD
CY2018	us-gaap	Noninterest Expense NoninterestExpense	228755000	USD
CY2017	us-gaap	Noninterest Expense NoninterestExpense	203162000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	124771000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	131299000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	118469000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22071000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20912000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34227000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	102700000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	110387000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	84242000	USD
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.33
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.13
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.51
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.29
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.07
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.47
CY2019	us-gaap	Net Income Loss NetIncomeLoss	102700000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	110387000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	84242000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	1487000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	1075000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	455000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	-1511000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	4046000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	9241000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-2998000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	2971000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	8786000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-333000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-2024000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	1184000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Transfers From Held To Maturity To Available For Sale Securities Net Of Tax OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax	19095000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Transfers From Held To Maturity To Available For Sale Securities Net Of Tax OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Transfers From Held To Maturity To Available For Sale Securities Net Of Tax OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	18227000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-17586000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1261000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	37655000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-15562000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	77000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-454000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-454000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	40199000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-18533000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-8709000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	142899000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	91854000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	75533000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	102700000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	110387000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	84242000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	6171000	USD
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	7945000	USD
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	8557000	USD
CY2019	us-gaap	Amortization Of Deferred Loan Origination Fees Net AmortizationOfDeferredLoanOriginationFeesNet	6826000	USD
CY2018	us-gaap	Amortization Of Deferred Loan Origination Fees Net AmortizationOfDeferredLoanOriginationFeesNet	6158000	USD
CY2017	us-gaap	Amortization Of Deferred Loan Origination Fees Net AmortizationOfDeferredLoanOriginationFeesNet	5758000	USD
CY2019	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-3373000	USD
CY2018	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-793000	USD
CY2017	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	0	USD
CY2019	us-gaap	Depreciation Depreciation	9119000	USD
CY2018	us-gaap	Depreciation Depreciation	8585000	USD
CY2017	us-gaap	Depreciation Depreciation	8644000	USD
CY2019	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1455000	USD
CY2018	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1262000	USD
CY2017	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1473000	USD
CY2019	prk	Long Term Debt Prepayment Penalty LongTermDebtPrepaymentPenalty	0	USD
CY2018	prk	Long Term Debt Prepayment Penalty LongTermDebtPrepaymentPenalty	0	USD
CY2017	prk	Long Term Debt Prepayment Penalty LongTermDebtPrepaymentPenalty	5719000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-844000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	538000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3289000	USD
CY2019	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-421000	USD
CY2018	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-2271000	USD
CY2017	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	1821000	USD
CY2019	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	5118000	USD
CY2018	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	4616000	USD
CY2017	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	1210000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	6324000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	5063000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	3942000	USD
CY2019	prk	Payments For Loan Originations Loans To Be Sold In Secondary Market PaymentsForLoanOriginationsLoansToBeSoldInSecondaryMarket	338437000	USD
CY2018	prk	Payments For Loan Originations Loans To Be Sold In Secondary Market PaymentsForLoanOriginationsLoansToBeSoldInSecondaryMarket	202827000	USD
CY2017	prk	Payments For Loan Originations Loans To Be Sold In Secondary Market PaymentsForLoanOriginationsLoansToBeSoldInSecondaryMarket	230860000	USD
CY2019	prk	Proceeds From Loan Sales ProceedsFromLoanSales	340637000	USD
CY2018	prk	Proceeds From Loan Sales ProceedsFromLoanSales	207836000	USD
CY2017	prk	Proceeds From Loan Sales ProceedsFromLoanSales	242139000	USD
CY2019	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	0	USD
CY2018	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	2826000	USD
CY2017	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	0	USD
CY2019	prk	Other Real Estate Owned Devaluations OtherRealEstateOwnedDevaluations	225000	USD
CY2018	prk	Other Real Estate Owned Devaluations OtherRealEstateOwnedDevaluations	491000	USD
CY2017	prk	Other Real Estate Owned Devaluations OtherRealEstateOwnedDevaluations	458000	USD
CY2019	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-222000	USD
CY2018	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	4235000	USD
CY2017	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	251000	USD
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	4557000	USD
CY2018	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	6815000	USD
CY2017	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	4858000	USD
CY2019	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	6927000	USD
CY2018	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	7322000	USD
CY2017	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	10278000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	0	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	0	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-15000000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-12305000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-9413000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	1155000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-3781000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	5131000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-11778000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	111014000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	131797000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	86686000	USD
CY2019	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-14675000	USD
CY2018	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-7003000	USD
CY2017	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	0	USD
CY2019	prk	Proceedsfrom Saleof Debt Securities ProceedsfromSaleofDebtSecurities	91110000	USD
CY2018	prk	Proceedsfrom Saleof Debt Securities ProceedsfromSaleofDebtSecurities	244399000	USD
CY2017	prk	Proceedsfrom Saleof Debt Securities ProceedsfromSaleofDebtSecurities	2265000	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	475000	USD
CY2018	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	10547000	USD
CY2017	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	14426000	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	195989000	USD
CY2018	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	197826000	USD
CY2017	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	193937000	USD
CY2019	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0	USD
CY2018	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	7133000	USD
CY2017	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	113519000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	373372000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	29684000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	100000	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	2590000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	0	USD
CY2019	us-gaap	Payments To Acquire Federal Reserve Stock PaymentsToAcquireFederalReserveStock	6428000	USD
CY2018	us-gaap	Payments To Acquire Federal Reserve Stock PaymentsToAcquireFederalReserveStock	0	USD
CY2017	us-gaap	Payments To Acquire Federal Reserve Stock PaymentsToAcquireFederalReserveStock	0	USD
CY2019	us-gaap	Increase Decrease In Equity Securities Fv Ni IncreaseDecreaseInEquitySecuritiesFvNi	-6429000	USD
CY2018	us-gaap	Increase Decrease In Equity Securities Fv Ni IncreaseDecreaseInEquitySecuritiesFvNi	-1153000	USD
CY2017	us-gaap	Increase Decrease In Equity Securities Fv Ni IncreaseDecreaseInEquitySecuritiesFvNi	-1305000	USD
CY2019	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	216353000	USD
CY2018	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	57315000	USD
CY2017	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	119336000	USD
CY2019	us-gaap	Proceeds From Sale Of Other Loans Held For Sale ProceedsFromSaleOfOtherLoansHeldForSale	0	USD
CY2018	us-gaap	Proceeds From Sale Of Other Loans Held For Sale ProceedsFromSaleOfOtherLoansHeldForSale	3000000	USD
CY2017	us-gaap	Proceeds From Sale Of Other Loans Held For Sale ProceedsFromSaleOfOtherLoansHeldForSale	0	USD
CY2019	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	1465000	USD
CY2018	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	13094000	USD
CY2017	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	2921000	USD
CY2019	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1571000	USD
CY2018	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	8096000	USD
CY2017	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1037000	USD
CY2019	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	3000000	USD
CY2018	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	0	USD
CY2017	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	0	USD
CY2019	us-gaap	Payments For Affordable Housing Programs PaymentsForAffordableHousingPrograms	6038000	USD
CY2018	us-gaap	Payments For Affordable Housing Programs PaymentsForAffordableHousingPrograms	0	USD
CY2017	us-gaap	Payments For Affordable Housing Programs PaymentsForAffordableHousingPrograms	7000000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	14885000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	11533000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	7018000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	4831000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-12270000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	60079000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	45445000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-60666000	USD
CY2019	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	159696000	USD
CY2018	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	159590000	USD
CY2017	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	295370000	USD
CY2019	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-20072000	USD
CY2018	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-169323000	USD
CY2017	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-3506000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	50000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	50000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	150000000	USD
CY2019	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0	USD
CY2018	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0	USD
CY2017	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	30000000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	257500000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	150000000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	350000000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	827000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	610000	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	347000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	40535000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	5784000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7378000	USD
CY2019	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	69113000	USD
CY2018	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	63013000	USD
CY2017	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	57493000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-178351000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-179140000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-3354000	USD
CY2019	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-7258000	USD
CY2018	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-1898000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	22666000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	167214000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	169112000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	146446000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	159956000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	167214000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	169112000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	63038000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	43600000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	42538000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	15186000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	7345000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	26190000	USD
CY2018	us-gaap	Debt Securities Held To Maturity Transfer Amount DebtSecuritiesHeldToMaturityTransferAmount	0	USD
CY2017	us-gaap	Debt Securities Held To Maturity Transfer Amount DebtSecuritiesHeldToMaturityTransferAmount	0	USD
CY2019	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	1671000	USD
CY2018	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	1204000	USD
CY2017	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	3457000	USD
CY2019	us-gaap	Other Significant Noncash Transaction Value Of Consideration Received1 OtherSignificantNoncashTransactionValueOfConsiderationReceived1	11475000	USD
CY2018	us-gaap	Other Significant Noncash Transaction Value Of Consideration Received1 OtherSignificantNoncashTransactionValueOfConsiderationReceived1	0	USD
CY2017	us-gaap	Other Significant Noncash Transaction Value Of Consideration Received1 OtherSignificantNoncashTransactionValueOfConsiderationReceived1	0	USD
CY2019	prk	Otherrepossessedassetstransfertorepossessedassets Otherrepossessedassetstransfertorepossessedassets	0	USD
CY2018	prk	Otherrepossessedassetstransfertorepossessedassets Otherrepossessedassetstransfertorepossessedassets	11379000	USD
CY2017	prk	Otherrepossessedassetstransfertorepossessedassets Otherrepossessedassetstransfertorepossessedassets	5553000	USD
CY2019	us-gaap	Affordable Housing Program Obligation Period Increase Decrease AffordableHousingProgramObligationPeriodIncreaseDecrease	10000000	USD
CY2018	us-gaap	Affordable Housing Program Obligation Period Increase Decrease AffordableHousingProgramObligationPeriodIncreaseDecrease	8000000	USD
CY2017	us-gaap	Affordable Housing Program Obligation Period Increase Decrease AffordableHousingProgramObligationPeriodIncreaseDecrease	7000000	USD
CY2019	us-gaap	Use Of Estimates UseOfEstimates	Use of EstimatesThe preparation of financial statements in conformity with accounting principles generally accepted in the United States of America ("U.S. GAAP") requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates.
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	89200000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	73900000	USD
CY2019Q4	us-gaap	Compensating Balance Amount CompensatingBalanceAmount	0	USD
CY2019	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%;">Concentration of Credit Risk</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Park's commercial loan portfolio includes loans to a wide variety of corporations and businesses across many industrial classifications in the 29 Ohio counties, four North Carolina counties, four South Carolina counties and one Kentucky county where PNB and its divisions operate, with the exception of nationwide aircraft loans and nationwide asset-based lending to consumer finance companies. The primary industries represented by these customers include real estate rental and leasing, finance and insurance, construction, agriculture, forestry, fishing and hunting, manufacturing, retail trade, health care, accommodation and food services and other services.</span></div>
CY2019	prk	Allowance For Loan And Lease Losses Reserve Estimate Methodology Historical Loss Period Factor AllowanceForLoanAndLeaseLossesReserveEstimateMethodologyHistoricalLossPeriodFactor	P120M
CY2019	prk	Allowance For Loan And Lease Losses Reserve Estimate Methodology Historical Loss Period Factor AllowanceForLoanAndLeaseLossesReserveEstimateMethodologyHistoricalLossPeriodFactor	P120M
CY2019	prk	Allowance For Loan And Lease Losses Reserve Estimate Methodology Historical Loss Period Factor AllowanceForLoanAndLeaseLossesReserveEstimateMethodologyHistoricalLossPeriodFactor	P120M
CY2019Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	4200000	USD
CY2018Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	4000000.0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Transfers From Held To Maturity To Available For Sale Securities Net Of Tax OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax	19100000	USD
CY2018Q3	us-gaap	Business Acquisition Share Price BusinessAcquisitionSharePrice	1.08
CY2018	prk	Business Combination Consideration Transferredallocationpercentagestock BusinessCombinationConsiderationTransferredallocationpercentagestock	60
CY2018	prk	Business Combination Consideration Transferredallocationpercentagecash BusinessCombinationConsiderationTransferredallocationpercentagecash	40
CY2018	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	48500000	USD
CY2018	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	30700000	USD
CY2018Q3	us-gaap	Business Acquisition Percentage Of Voting Interests Acquired BusinessAcquisitionPercentageOfVotingInterestsAcquired	0.9145
CY2018Q3	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Percentage BusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage	0.0855
CY2018	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Remeasurement Gain BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain	3500000	USD
CY2018Q3	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Percentage BusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage	0.0855
CY2018	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	30684000	USD
CY2018	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	48519000	USD
CY2018	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Fair Value1 BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1	7000000	USD
CY2018	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	86203000	USD
CY2018Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Cash And Equivalents BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents	42954000	USD
CY2018Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Marketable Securities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities	1954000	USD
CY2018Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Receivables BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables	272753000	USD
CY2018Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Property Plant And Equipment BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment	940000	USD
CY2018Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangibles BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles	6249000	USD
CY2018Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Indefinite Lived Intangible Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets	1300000	USD
CY2018Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Other Noncurrent Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets	6133000	USD
CY2018Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets	332283000	USD
CY2018Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities	284231000	USD
CY2018Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Noncurrent Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities	2254000	USD
CY2018Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities	286485000	USD
CY2018Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	45798000	USD
CY2018Q3	us-gaap	Business Combination Acquired Receivables Gross Contractual Amount BusinessCombinationAcquiredReceivablesGrossContractualAmount	277919000	USD
CY2018Q3	us-gaap	Business Combination Acquired Receivables Fair Value BusinessCombinationAcquiredReceivablesFairValue	272753000	USD
CY2019Q2	us-gaap	Business Acquisition Share Price BusinessAcquisitionSharePrice	3.80
CY2019	us-gaap	Stock Issued During Period Shares Acquisitions StockIssuedDuringPeriodSharesAcquisitions	1037205	shares
CY2019	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	98300000	USD
CY2019	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	28600000	USD
CY2019	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	28630000	USD
CY2019	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	98275000	USD
CY2019	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	126905000	USD
CY2019Q2	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Cash And Equivalents BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents	23799000	USD
CY2019Q2	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Marketable Securities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities	97606000	USD
CY2019Q2	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Receivables BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables	578577000	USD
CY2019Q2	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Property Plant And Equipment BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment	8337000	USD
CY2019Q2	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangibles BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles	8207000	USD
CY2019Q2	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Other Noncurrent Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets	32123000	USD
CY2019Q2	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets	748649000	USD
CY2019Q2	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities	632649000	USD
CY2019Q2	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Noncurrent Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities	35951000	USD
CY2019Q2	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities	668600000	USD
CY2019Q2	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	80049000	USD
CY2019Q3	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	58000	USD
CY2019Q3	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	58000	USD
CY2019Q2	us-gaap	Business Combination Acquired Receivables Gross Contractual Amount BusinessCombinationAcquiredReceivablesGrossContractualAmount	589698000	USD
CY2019Q2	us-gaap	Business Combination Acquired Receivables Fair Value BusinessCombinationAcquiredReceivablesFairValue	578577000	USD
CY2019	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	304480000	USD
CY2018	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	302282000	USD
CY2019	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	112492000	USD
CY2018	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	123472000	USD
CY2019	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	6.82
CY2018	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	7.37
CY2019	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	6.78
CY2018	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	7.31
CY2017	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2018	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2019	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1187499000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	28425000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	6223000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1209701000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1028883000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	453000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	25915000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1003421000	USD
CY2018Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	351808000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	3289000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	3675000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	351422000	USD
CY2019	prk	Investments In Debt And Marketable Securities Asset Backed Securities Mortgage Portfolio Description Mortgage Term InvestmentsInDebtAndMarketableSecuritiesAssetBackedSecuritiesMortgagePortfolioDescriptionMortgageTerm	P15Y
CY2019	us-gaap	Debt Securities Held To Maturity Transfer Amount DebtSecuritiesHeldToMaturityTransferAmount	373900000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Transfers From Held To Maturity To Available For Sale Securities Net Of Tax OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax	19100000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	237613000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1106000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	171805000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	5117000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	409418000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	6223000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	506280000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	5998000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	449569000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	19917000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	955849000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	25915000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	124616000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1933000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	77654000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	1742000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	202270000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	3675000	USD
CY2019Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities Pledged PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged	370000000	USD
CY2019Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Repurchase Agreements PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements	197000000	USD
CY2019Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Federal Home Loan Bank PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForFederalHomeLoanBank	18000000	USD
CY2018Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities Pledged PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged	332000000	USD
CY2018Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Repurchase Agreements PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements	280000000	USD
CY2018Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Federal Home Loan Bank PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForFederalHomeLoanBank	22000000	USD
CY2019Q4	us-gaap	Repurchase Agreement Counterparty Amount At Risk RepurchaseAgreementCounterpartyAmountAtRisk	0	USD
CY2019	prk	Percentage Of Amount Greater Than Shareholders Equity PercentageOfAmountGreaterThanShareholdersEquity	0.10
CY2019	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	692000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	271000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	2600000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	60000	USD
CY2018	us-gaap	Held To Maturity Securities Sold Security Realized Gain Loss HeldToMaturitySecuritiesSoldSecurityRealizedGainLoss	300000	USD
CY2018Q4	prk	Percentofheldtosecuritiessoldpaiddown Percentofheldtosecuritiessoldpaiddown	0.963
CY2019	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	13300000	USD
CY2019	prk	Equityinvestmentpurchasedshares Equityinvestmentpurchasedshares	128553	shares
CY2018	prk	Equityinvestmentsharessold Equityinvestmentsharessold	66980000	shares
CY2018	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	6700000	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	30060000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	43388000	USD
CY2019Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	14653000	USD
CY2018Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	8225000	USD
CY2019Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	1993000	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	1649000	USD
CY2019Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	2689000	USD
CY2018Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	2589000	USD
CY2019Q4	us-gaap	Alternative Investment AlternativeInvestment	20411000	USD
CY2018Q4	us-gaap	Alternative Investment AlternativeInvestment	17065000	USD
CY2019Q4	us-gaap	Other Investments And Securities At Cost OtherInvestmentsAndSecuritiesAtCost	69806000	USD
CY2018Q4	us-gaap	Other Investments And Securities At Cost OtherInvestmentsAndSecuritiesAtCost	72916000	USD
CY2019	prk	Equityinvestmentsharessold Equityinvestmentsharessold	123472	shares
CY2018Q3	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Percentage BusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage	0.0855
CY2019	prk	Alternative Investmentincomerecognized AlternativeInvestmentincomerecognized	4800000	USD
CY2018	prk	Alternative Investmentincomerecognized AlternativeInvestmentincomerecognized	1400000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	6501404000	USD
CY2019Q4	us-gaap	Interest Receivable InterestReceivable	19221000	USD
CY2019Q4	prk	Loans And Leases Receivable Recorded Investment LoansAndLeasesReceivableRecordedInvestment	6520625000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	5692132000	USD
CY2018Q4	us-gaap	Interest Receivable InterestReceivable	17666000	USD
CY2018Q4	prk	Loans And Leases Receivable Recorded Investment LoansAndLeasesReceivableRecordedInvestment	5709798000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	16300000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	12500000	USD
CY2019Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	2200000	USD
CY2018Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	2300000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	90080000	USD
CY2019Q4	prk	Restructured Loans RestructuredLoans	21298000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	2737000	USD
CY2019Q4	prk	Financing Receivable Recorded Investment Nonperforming FinancingReceivableRecordedInvestmentNonperforming	114115000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	67954000	USD
CY2018Q4	prk	Restructured Loans RestructuredLoans	15222000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	2302000	USD
CY2018Q4	prk	Financing Receivable Recorded Investment Nonperforming FinancingReceivableRecordedInvestmentNonperforming	85478000	USD
CY2019Q4	prk	Financing Receivable Recorded Investment Nonaccrual And Accruing Restructured Loans FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans	111378000	USD
CY2019Q4	prk	Financing Receivable Recorded Investment Nonaccrual And Accruing Restructured Loans Individually Evaluated For Impairment FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment	77491000	USD
CY2019Q4	prk	Financing Receivable Recorded Investment Nonaccrual And Accruing Restructured Loans Collectively Evaluated For Impairment FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment	33887000	USD
CY2018Q4	prk	Financing Receivable Recorded Investment Nonaccrual And Accruing Restructured Loans FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoans	83176000	USD
CY2018Q4	prk	Financing Receivable Recorded Investment Nonaccrual And Accruing Restructured Loans Individually Evaluated For Impairment FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansIndividuallyEvaluatedForImpairment	48144000	USD
CY2018Q4	prk	Financing Receivable Recorded Investment Nonaccrual And Accruing Restructured Loans Collectively Evaluated For Impairment FinancingReceivableRecordedInvestmentNonaccrualAndAccruingRestructuredLoansCollectivelyEvaluatedForImpairment	35032000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	78178000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	77491000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	5230000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	59381000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	48144000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2273000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	5200000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2300000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	12700000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	14000000.0	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	77491000	USD
CY2019	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	57768000	USD
CY2019	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	57768000	USD
CY2019	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	1893000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	48144000	USD
CY2018	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	51041000	USD
CY2018	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	1890000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	56564000	USD
CY2017	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	67070000	USD
CY2017	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	2708000	USD
CY2019Q4	prk	Financing Receivable Recorded Investment Accruing Loans30 To89 Days Past Due FinancingReceivableRecordedInvestmentAccruingLoans30To89DaysPastDue	21749000	USD
CY2019Q4	prk	Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans FinancingReceivableRecordedInvestmentNinetyDaysOrMorePastDueAndAccruingPlusPastDueNonaccrualLoans	26535000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	48284000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	6472341000	USD
CY2019Q4	prk	Loans And Leases Receivable Recorded Investment LoansAndLeasesReceivableRecordedInvestment	6520625000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	2700000	USD
CY2019Q4	prk	Financingreceivablenonaccrualcurrent Financingreceivablenonaccrualcurrent	66300000	USD
CY2018Q4	prk	Financing Receivable Recorded Investment Accruing Loans30 To89 Days Past Due FinancingReceivableRecordedInvestmentAccruingLoans30To89DaysPastDue	29919000	USD
CY2018Q4	prk	Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans FinancingReceivableRecordedInvestmentNinetyDaysOrMorePastDueAndAccruingPlusPastDueNonaccrualLoans	19602000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	49521000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	5660277000	USD
CY2018Q4	prk	Loans And Leases Receivable Recorded Investment LoansAndLeasesReceivableRecordedInvestment	5709798000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	2300000	USD
CY2018Q4	prk	Financingreceivablenonaccrualcurrent Financingreceivablenonaccrualcurrent	50700000	USD
CY2018Q3	us-gaap	Business Combination Acquired Receivables Gross Contractual Amount BusinessCombinationAcquiredReceivablesGrossContractualAmount	277900000	USD
CY2018Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Receivables BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables	272800000	USD
CY2019Q2	us-gaap	Business Combination Acquired Receivables Gross Contractual Amount BusinessCombinationAcquiredReceivablesGrossContractualAmount	589700000	USD
CY2019Q2	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Receivables BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables	578600000	USD
CY2019	prk	Troubled Debt Restructuring Classificationremoved TroubledDebtRestructuringClassificationremoved	38000	USD
CY2018	prk	Troubled Debt Restructuring Classificationremoved TroubledDebtRestructuringClassificationremoved	2400000	USD
CY2019Q4	prk	Troubled Debt Restructuring Included In Nonaccrual Loans TroubledDebtRestructuringIncludedInNonaccrualLoans	34300000	USD
CY2018Q4	prk	Troubled Debt Restructuring Included In Nonaccrual Loans TroubledDebtRestructuringIncludedInNonaccrualLoans	24600000	USD
CY2019Q4	prk	Nonaccrual Trouble Debt Restructuring Current NonaccrualTroubleDebtRestructuringCurrent	23200000	USD
CY2018Q4	prk	Nonaccrual Trouble Debt Restructuring Current NonaccrualTroubleDebtRestructuringCurrent	19200000	USD
CY2019Q4	prk	Troubled Debt Restructuring Included In Accruing Loans TroubledDebtRestructuringIncludedInAccruingLoans	21300000	USD
CY2018Q4	prk	Troubled Debt Restructuring Included In Accruing Loans TroubledDebtRestructuringIncludedInAccruingLoans	15200000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	7900000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	300000	USD
CY2019Q4	prk	Specific Reserves Related To Troubled Debt Restructuring SpecificReservesRelatedToTroubledDebtRestructuring	2200000	USD
CY2018Q4	prk	Specific Reserves Related To Troubled Debt Restructuring SpecificReservesRelatedToTroubledDebtRestructuring	1200000	USD
CY2019	prk	Additional Specific Reserves Related To Troubled Debt Restructuring AdditionalSpecificReservesRelatedToTroubledDebtRestructuring	1300	USD
CY2018	prk	Additional Specific Reserves Related To Troubled Debt Restructuring AdditionalSpecificReservesRelatedToTroubledDebtRestructuring	200000	USD
CY2017	prk	Additional Specific Reserves Related To Troubled Debt Restructuring AdditionalSpecificReservesRelatedToTroubledDebtRestructuring	300000	USD
CY2019Q4	prk	Modified Substandard Commercial Loans Total Recorded Investment ModifiedSubstandardCommercialLoansTotalRecordedInvestment	649000	USD
CY2018Q4	prk	Modified Substandard Commercial Loans Total Recorded Investment ModifiedSubstandardCommercialLoansTotalRecordedInvestment	368000	USD
CY2019Q4	prk	Modified Substandard Consumer Loans Total Recorded Investment ModifiedSubstandardConsumerLoansTotalRecordedInvestment	36200000	USD
CY2018Q4	prk	Modified Substandard Consumer Loans Total Recorded Investment ModifiedSubstandardConsumerLoansTotalRecordedInvestment	20900000	USD
CY2019	prk	Acquired Financing Receivable With Deteriorated Credit Quality Not Tdr AcquiredFinancingReceivableWithDeterioratedCreditQualityNotTDR	440000	USD
CY2018	prk	Acquired Financing Receivable With Deteriorated Credit Quality Not Tdr AcquiredFinancingReceivableWithDeterioratedCreditQualityNotTDR	0	USD
CY2019	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	443	contracts
CY2019	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	26673000	USD
CY2018	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	392	contracts
CY2019Q1	prk	Allowance For Loan And Lease Losses Reserve Estimate Methodology Historical Loss Period Factor AllowanceForLoanAndLeaseLossesReserveEstimateMethodologyHistoricalLossPeriodFactor	P120M
CY2018	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	9191000	USD
CY2017	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	426	contracts
CY2017	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	10125000	USD
CY2019	prk	Financing Receivable Modifications Recorded Investment Nonaccrual At Prior Fiscal Year End FinancingReceivableModificationsRecordedInvestmentNonaccrualAtPriorFiscalYearEnd	2100000	USD
CY2018	prk	Financing Receivable Modifications Recorded Investment Nonaccrual At Prior Fiscal Year End FinancingReceivableModificationsRecordedInvestmentNonaccrualAtPriorFiscalYearEnd	500000	USD
CY2017	prk	Financing Receivable Modifications Recorded Investment Nonaccrual At Prior Fiscal Year End FinancingReceivableModificationsRecordedInvestmentNonaccrualAtPriorFiscalYearEnd	1800000	USD
CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	70	contracts
CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	1365000	USD
CY2018	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	73	contracts
CY2018	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	1319000	USD
CY2017	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	64	contracts
CY2017	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	1235000	USD
CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	1400000	USD
CY2018	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	1300000	USD
CY2017	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	1200000	USD
CY2018	prk	Allowance For Loan And Lease Losses Reserve Estimate Methodology Historical Loss Period Factor AllowanceForLoanAndLeaseLossesReserveEstimateMethodologyHistoricalLossPeriodFactor	P108M
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	51512000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	11177000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	10173000	USD
CY2019	prk	Financing Receivables Allowance For Credit Losses Net Charge Offs FinancingReceivablesAllowanceForCreditLossesNetChargeOffs	1004000	USD
CY2019	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	6171000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	56679000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	49988000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	13552000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	7131000	USD
CY2018	prk	Financing Receivables Allowance For Credit Losses Net Charge Offs FinancingReceivablesAllowanceForCreditLossesNetChargeOffs	6421000	USD
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	7945000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	51512000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	50624000	USD
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	19403000	USD
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	10210000	USD
CY2017	prk	Financing Receivables Allowance For Credit Losses Net Charge Offs FinancingReceivablesAllowanceForCreditLossesNetChargeOffs	9193000	USD
CY2017	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	8557000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	49988000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	5230000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	51181000	USD
CY2019Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Allowance For Loan Losses CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses	268000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	56679000	USD
CY2019Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	77459000	USD
CY2019Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	6409614000	USD
CY2019Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	14331000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	6501404000	USD
CY2019Q4	prk	Loans And Leases Receivable Ratio Of Allowance For Loan Losses To Total Loans Individually Evaluated For Impairment LoansAndLeasesReceivableRatioOfAllowanceForLoanLossesToTotalLoansIndividuallyEvaluatedForImpairment	0.0675
CY2019Q4	prk	Loans And Leases Receivable Ratio Of Allowance For Loan Losses To Total Loans Collectively Evaluated For Impairment LoansAndLeasesReceivableRatioOfAllowanceForLoanLossesToTotalLoansCollectivelyEvaluatedForImpairment	0.0080
CY2019Q4	prk	Certain Loans Acquiredin Transfer Not Accountedforas Debt Securities Allowanceasapercentageofloanbalance CertainLoansAcquiredinTransferNotAccountedforasDebtSecuritiesAllowanceasapercentageofloanbalance	0.0187
CY2019Q4	prk	Loans And Leases Receivable Ratio Of Allowance For Loan Losses To Total Loans LoansAndLeasesReceivableRatioOfAllowanceForLoanLossesToTotalLoans	0.0087
CY2019Q4	prk	Loans And Leases Receivable Recorded Investment Individually Evaluated For Impairment LoansAndLeasesReceivableRecordedInvestmentIndividuallyEvaluatedForImpairment	77491000	USD
CY2019Q4	prk	Loans And Leases Receivable Recorded Investment Collectively Evaluated For Impairment LoansAndLeasesReceivableRecordedInvestmentCollectivelyEvaluatedForImpairment	6428693000	USD
CY2019Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	14441000	USD
CY2019Q4	prk	Loans And Leases Receivable Recorded Investment LoansAndLeasesReceivableRecordedInvestment	6520625000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2273000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	49239000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Allowance For Loan Losses CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses	0	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	51512000	USD
CY2018Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	48135000	USD
CY2018Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	5640054000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	3943000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	5692132000	USD
CY2018Q4	prk	Loans And Leases Receivable Ratio Of Allowance For Loan Losses To Total Loans Individually Evaluated For Impairment LoansAndLeasesReceivableRatioOfAllowanceForLoanLossesToTotalLoansIndividuallyEvaluatedForImpairment	0.0472
CY2018Q4	prk	Loans And Leases Receivable Ratio Of Allowance For Loan Losses To Total Loans Collectively Evaluated For Impairment LoansAndLeasesReceivableRatioOfAllowanceForLoanLossesToTotalLoansCollectivelyEvaluatedForImpairment	0.0087
CY2018Q4	prk	Certain Loans Acquiredin Transfer Not Accountedforas Debt Securities Allowanceasapercentageofloanbalance CertainLoansAcquiredinTransferNotAccountedforasDebtSecuritiesAllowanceasapercentageofloanbalance	0
CY2018Q4	prk	Loans And Leases Receivable Ratio Of Allowance For Loan Losses To Total Loans LoansAndLeasesReceivableRatioOfAllowanceForLoanLossesToTotalLoans	0.0090
CY2018Q4	prk	Loans And Leases Receivable Recorded Investment Individually Evaluated For Impairment LoansAndLeasesReceivableRecordedInvestmentIndividuallyEvaluatedForImpairment	48144000	USD
CY2018Q4	prk	Loans And Leases Receivable Recorded Investment Collectively Evaluated For Impairment LoansAndLeasesReceivableRecordedInvestmentCollectivelyEvaluatedForImpairment	5657693000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	3961000	USD
CY2018Q4	prk	Loans And Leases Receivable Recorded Investment LoansAndLeasesReceivableRecordedInvestment	5709798000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	72334000	USD
CY2017Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	0	USD
CY2017Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	72334000	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	40405000	USD
CY2018	us-gaap	Indefinitelived Intangible Assets Acquired IndefinitelivedIntangibleAssetsAcquired	7549000	USD
CY2018	prk	Acquiredgoodwillandintangibles Acquiredgoodwillandintangibles	47954000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	578000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	578000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	112739000	USD
CY2018Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	6971000	USD
CY2018Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	119710000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	46856000	USD
CY2019	us-gaap	Indefinitelived Intangible Assets Acquired IndefinitelivedIntangibleAssetsAcquired	8207000	USD
CY2019	prk	Acquiredgoodwillandintangibles Acquiredgoodwillandintangibles	55063000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2355000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2355000	USD
CY2019	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	1300000	USD
CY2019	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	1300000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	159595000	USD
CY2019Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	11523000	USD
CY2019Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	171118000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	6249000	USD
CY2018Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	1300000	USD
CY2019Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	15756000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	4233000	USD
CY2018Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	7549000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	578000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	2263000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1798000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1487000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	1323000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	1215000	USD
CY2019Q4	us-gaap	Mortgages Held For Sale Fair Value Disclosure MortgagesHeldForSaleFairValueDisclosure	12300000	USD
CY2018Q4	us-gaap	Mortgages Held For Sale Fair Value Disclosure MortgagesHeldForSaleFairValueDisclosure	4200000	USD
CY2019	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	153000	USD
CY2018	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	60000	USD
CY2019Q4	prk	Loansheldforsalelowerofcostormarket Loansheldforsalelowerofcostormarket	0	USD
CY2019Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	4029000	USD
CY2018Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	4303000	USD
CY2019Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	4200000	USD
CY2018Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	4000000.0	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	196061000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	170218000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	122739000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	110447000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	73322000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	59771000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	9100000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	8600000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	8600000	USD
CY2019Q4	us-gaap	Property Subject To Or Available For Operating Lease Gross PropertySubjectToOrAvailableForOperatingLeaseGross	9277000	USD
CY2018Q4	us-gaap	Property Subject To Or Available For Operating Lease Gross PropertySubjectToOrAvailableForOperatingLeaseGross	1566000	USD
CY2019Q4	us-gaap	Property Subject To Or Available For Operating Lease Accumulated Depreciation PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation	3911000	USD
CY2018Q4	us-gaap	Property Subject To Or Available For Operating Lease Accumulated Depreciation PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation	1325000	USD
CY2019Q4	us-gaap	Property Subject To Or Available For Operating Lease Net PropertySubjectToOrAvailableForOperatingLeaseNet	5366000	USD
CY2018Q4	us-gaap	Property Subject To Or Available For Operating Lease Net PropertySubjectToOrAvailableForOperatingLeaseNet	241000	USD
CY2019	us-gaap	Operating Leases Income Statement Depreciation Expense On Property Subject To Or Held For Lease OperatingLeasesIncomeStatementDepreciationExpenseOnPropertySubjectToOrHeldForLease	1300000	USD
CY2018	us-gaap	Operating Leases Income Statement Depreciation Expense On Property Subject To Or Held For Lease OperatingLeasesIncomeStatementDepreciationExpenseOnPropertySubjectToOrHeldForLease	26000	USD
CY2017	us-gaap	Operating Leases Income Statement Depreciation Expense On Property Subject To Or Held For Lease OperatingLeasesIncomeStatementDepreciationExpenseOnPropertySubjectToOrHeldForLease	62000	USD
CY2019Q4	us-gaap	Affordable Housing Program Obligation AffordableHousingProgramObligation	25894000	USD
CY2018Q4	us-gaap	Affordable Housing Program Obligation AffordableHousingProgramObligation	22282000	USD
CY2019	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	6900000	USD
CY2018	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	7300000	USD
CY2017	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	10300000	USD
CY2017	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	10300000	USD
CY2019	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	8800000	USD
CY2018	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	9000000.0	USD
CY2017	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	9400000	USD
CY2019Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1959935000	USD
CY2018Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1804881000	USD
CY2019Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	5092677000	USD
CY2018Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	4455979000	USD
CY2019Q4	us-gaap	Deposits Deposits	7052612000	USD
CY2018Q4	us-gaap	Deposits Deposits	6260860000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	796716000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	227164000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	71748000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	21035000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	22366000	USD
CY2019Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	102000	USD
CY2019Q4	us-gaap	Time Deposits TimeDeposits	1139131000	USD
CY2019Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	17700000	USD
CY2018Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	19700000	USD
CY2019Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	96000000.0	USD
CY2018Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	62900000	USD
CY2019Q4	us-gaap	Transfers Accounted For As Secured Borrowings Associated Liabilities Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssociatedLiabilitiesCarryingAmount	176000000	USD
CY2018Q4	us-gaap	Transfers Accounted For As Secured Borrowings Associated Liabilities Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssociatedLiabilitiesCarryingAmount	165000000	USD
CY2019Q4	us-gaap	Pledged Assets Separately Reported Securities Pledged For Repurchase Agreements At Fair Value PledgedAssetsSeparatelyReportedSecuritiesPledgedForRepurchaseAgreementsAtFairValue	200000000	USD
CY2018Q4	us-gaap	Pledged Assets Separately Reported Securities Pledged For Repurchase Agreements At Fair Value PledgedAssetsSeparatelyReportedSecuritiesPledgedForRepurchaseAgreementsAtFairValue	272000000	USD
CY2019Q4	prk	Availableunpledgedsecurities Availableunpledgedsecurities	756000000	USD
CY2018Q4	prk	Availableunpledgedsecurities Availableunpledgedsecurities	933000000	USD
CY2019Q4	us-gaap	Transfers Accounted For As Secured Borrowings Associated Liabilities Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssociatedLiabilitiesCarryingAmount	175657000	USD
CY2018Q4	us-gaap	Transfers Accounted For As Secured Borrowings Associated Liabilities Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssociatedLiabilitiesCarryingAmount	164966000	USD
CY2019Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	175657000	USD
CY2018Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	164966000	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	55000000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	57000000	USD
CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	230657000	USD
CY2018Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	221966000	USD
CY2019Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Federal Home Loan Bank PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForFederalHomeLoanBank	18000000	USD
CY2018Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Federal Home Loan Bank PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForFederalHomeLoanBank	22000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	100000000	USD
CY2018Q4	prk	Long Term Debt Maturities Average Rate In Next Twelve Months LongTermDebtMaturitiesAverageRateInNextTwelveMonths	0.0192
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	0	USD
CY2019Q4	prk	Long Term Debt Maturities Average Rate In Next Twelve Months LongTermDebtMaturitiesAverageRateInNextTwelveMonths	0
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	50000000	USD
CY2018Q4	prk	Long Term Debt Maturities Average Rate In Year Two LongTermDebtMaturitiesAverageRateInYearTwo	0.0204
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	0	USD
CY2019Q4	prk	Long Term Debt Maturities Average Rate In Year Two LongTermDebtMaturitiesAverageRateInYearTwo	0
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	100000000	USD
CY2018Q4	prk	Long Term Debt Maturities Average Rate In Year Three LongTermDebtMaturitiesAverageRateInYearThree	0.0196
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	92500000	USD
CY2019Q4	prk	Long Term Debt Maturities Average Rate In Year Three LongTermDebtMaturitiesAverageRateInYearThree	0.0319
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	50000000	USD
CY2018Q4	prk	Long Term Debt Maturities Average Rate In Year Four LongTermDebtMaturitiesAverageRateInYearFour	0.0301
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	100000000	USD
CY2019Q4	prk	Long Term Debt Maturities Average Rate In Year Four LongTermDebtMaturitiesAverageRateInYearFour	0.0340
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	100000000	USD
CY2018Q4	prk	Long Term Debt Maturities Average Rate In Year Five LongTermDebtMaturitiesAverageRateInYearFive	0.0340
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	0	USD
CY2019Q4	prk	Long Term Debt Maturities Average Rate In Year Five LongTermDebtMaturitiesAverageRateInYearFive	0
CY2018Q4	prk	Long Term Debt Maturities Repayments Of Principal In Year Six LongTermDebtMaturitiesRepaymentsOfPrincipalInYearSix	0	USD
CY2018Q4	prk	Long Term Debt Maturities Average Rate In Year Six LongTermDebtMaturitiesAverageRateInYearSix	0
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	0	USD
CY2019Q4	prk	Long Term Debt Maturities Average Rate In After Year Five LongTermDebtMaturitiesAverageRateInAfterYearFive	0
CY2018Q4	prk	Long Term Debt Maturities Repayments Of Principal After Year Six LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearSix	0	USD
CY2018Q4	prk	Long Term Debt Maturities Average Rate In After Year Six LongTermDebtMaturitiesAverageRateInAfterYearSix	0
CY2019Q4	prk	Long Term Debt Excluding Unamortized Cost Of Debt Extinguishment Costs LongTermDebtExcludingUnamortizedCostOfDebtExtinguishmentCosts	192500000	USD
CY2019Q4	prk	Long Term Debt Excluding Unamortized Cost Of Debt Extinguishment Costs Average Rate LongTermDebtExcludingUnamortizedCostOfDebtExtinguishmentCostsAverageRate	0.0330
CY2018Q4	prk	Long Term Debt Excluding Unamortized Cost Of Debt Extinguishment Costs LongTermDebtExcludingUnamortizedCostOfDebtExtinguishmentCosts	400000000	USD
CY2018Q4	prk	Long Term Debt Excluding Unamortized Cost Of Debt Extinguishment Costs Average Rate LongTermDebtExcludingUnamortizedCostOfDebtExtinguishmentCostsAverageRate	0.0245
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	0	USD
CY2019Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Federal Home Loan Bank PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForFederalHomeLoanBank	18000000	USD
CY2018Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Federal Home Loan Bank PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForFederalHomeLoanBank	22000000	USD
CY2019	prk	Interest Incomeon Interestrate Swap InterestIncomeonInterestrateSwap	42000	USD
CY2018	prk	Interest Incomeon Interestrate Swap InterestIncomeonInterestrateSwap	0	USD
CY2019	us-gaap	Unrealized Gain Loss On Interest Rate Cash Flow Hedges Pretax Accumulated Other Comprehensive Income Loss UnrealizedGainLossOnInterestRateCashFlowHedgesPretaxAccumulatedOtherComprehensiveIncomeLoss	-454000	USD
CY2019	us-gaap	Interest Rate Cash Flow Hedge Gain Loss Reclassified To Earnings Net InterestRateCashFlowHedgeGainLossReclassifiedToEarningsNet	0	USD
CY2019	us-gaap	Gain Loss On Cash Flow Hedge Ineffectiveness Net GainLossOnCashFlowHedgeIneffectivenessNet	0	USD
CY2019Q4	us-gaap	Derivative Assets DerivativeAssets	221000	USD
CY2018Q4	us-gaap	Derivative Assets DerivativeAssets	87000	USD
CY2019	prk	Treasury Stock Reissued Shares For Director Grants TreasuryStockReissuedSharesForDirectorGrants	13500	shares
CY2018	prk	Treasury Stock Reissued Shares For Director Grants TreasuryStockReissuedSharesForDirectorGrants	11650	shares
CY2017	prk	Treasury Stock Reissued Shares For Director Grants TreasuryStockReissuedSharesForDirectorGrants	11150	shares
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1 SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1	1300000	USD
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1 SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1	1100000	USD
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1 SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1	1200000	USD
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	116716	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	18800	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	4655	shares
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CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	152631	shares
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CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	194722	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	175033	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	27719	shares
CY2019	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	8736	shares
CY2019	us-gaap	Restricted Stock Shares Issued Net Of Shares For Tax Withholdings RestrictedStockSharesIssuedNetOfSharesForTaxWithholdings	18983	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	18800	shares
CY2018	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	5879	shares
CY2018	us-gaap	Restricted Stock Shares Issued Net Of Shares For Tax Withholdings RestrictedStockSharesIssuedNetOfSharesForTaxWithholdings	12921	shares
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5000000.0	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4000000.0	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2700000	USD
CY2019Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	7585000	USD
CY2018	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	0	USD
CY2019	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	0	USD
CY2018Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	177077000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	195735000	USD
CY2019	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	42402000	USD
CY2018	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	-8118000	USD
CY2019	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	0	USD
CY2018	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	0	USD
CY2019	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	8856000	USD
CY2018	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	10540000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	210623000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	177077000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	123528000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	138698000	USD
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	5873000	USD
CY2018	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	6547000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	5491000	USD
CY2018	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	5236000	USD
CY2019	us-gaap	Defined Benefit Plan Plan Amendments DefinedBenefitPlanPlanAmendments	-168000	USD
CY2018	us-gaap	Defined Benefit Plan Plan Amendments DefinedBenefitPlanPlanAmendments	0	USD
CY2019	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	28551000	USD
CY2018	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-16413000	USD
CY2019	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	8856000	USD
CY2018	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	10540000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	154419000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	123528000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	56204000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	53549000	USD
CY2018	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-16400000	USD
CY2019	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	28600000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0460
CY2019Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0353
CY2019Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2018Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2019	prk	Defined Benefit Plan Expected Return On Plan Assets Percentage DefinedBenefitPlanExpectedReturnOnPlanAssetsPercentage	0.0700
CY2019Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	129300000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	104900000	USD
CY2009Q4	prk	Common Share Purchased Under Pension Plan Shares CommonSharePurchasedUnderPensionPlanShares	115800	shares
CY2009Q4	prk	Common Share Purchased Under Pension Plan Value CommonSharePurchasedUnderPensionPlanValue	7000000.0	USD
CY2009Q4	prk	Common Share Purchased Under Pension Plan Value Per Share CommonSharePurchasedUnderPensionPlanValuePerShare	60.45
CY2019Q4	prk	Common Shares Held Under Pension Plan Shares CommonSharesHeldUnderPensionPlanShares	115800	shares
CY2019Q4	prk	Common Shares Held Under Pension Plan Fair Value CommonSharesHeldUnderPensionPlanFairValue	11900000	USD
CY2019	prk	Fair Value Pension Plan Common Shares Held Per Share FairValuePensionPlanCommonSharesHeldPerShare	102.38
CY2018Q4	prk	Common Shares Held Under Pension Plan Fair Value CommonSharesHeldUnderPensionPlanFairValue	9800000	USD
CY2018	prk	Fair Value Pension Plan Common Shares Held Per Share FairValuePensionPlanCommonSharesHeldPerShare	84.95
CY2019Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0353
CY2018Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0460
CY2017Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0389
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	9676000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	10377000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	11038000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	10553000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	11627000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	58398000	USD
CY2019Q4	prk	Defined Benefit Plan Expected Future Benefit Payments Total DefinedBenefitPlanExpectedFutureBenefitPaymentsTotal	111669000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Costs Credit Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax	168000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Costs Credit Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	33933000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	37560000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-33765000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-37560000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	7091000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	7888000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	-26674000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	-29672000	USD
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	5873000	USD
CY2018	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	6547000	USD
CY2017	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	5270000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	5491000	USD
CY2018	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	5236000	USD
CY2017	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	5085000	USD
CY2019	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	12105000	USD
CY2018	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	13417000	USD
CY2017	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	11455000	USD
CY2019	us-gaap	Defined Benefit Plan Actuarial Gain Loss Immediate Recognition As Component In Net Periodic Benefit Cost Credit DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit	-1882000	USD
CY2018	us-gaap	Defined Benefit Plan Actuarial Gain Loss Immediate Recognition As Component In Net Periodic Benefit Cost Credit DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit	-1361000	USD
CY2017	us-gaap	Defined Benefit Plan Actuarial Gain Loss Immediate Recognition As Component In Net Periodic Benefit Cost Credit DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit	-576000	USD
CY2019	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1141000	USD
CY2018	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-273000	USD
CY2017	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-524000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	1913000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	-5122000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	-11698000	USD
CY2019	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	1882000	USD
CY2018	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	1361000	USD
CY2017	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	576000	USD
CY2019	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	3795000	USD
CY2018	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	-3761000	USD
CY2017	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	-11122000	USD
CY2019	prk	Total Recognized In Net Benefit Cost And Other Comprehensive Loss Income TotalRecognizedInNetBenefitCostAndOtherComprehensiveLossIncome	2654000	USD
CY2018	prk	Total Recognized In Net Benefit Cost And Other Comprehensive Loss Income TotalRecognizedInNetBenefitCostAndOtherComprehensiveLossIncome	-3488000	USD
CY2017	prk	Total Recognized In Net Benefit Cost And Other Comprehensive Loss Income TotalRecognizedInNetBenefitCostAndOtherComprehensiveLossIncome	-10598000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Amortization Of Gain Loss Next Fiscal Year DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear	1200000	USD
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0460
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0389
CY2017	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0458
CY2019Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
CY2018Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
CY2017Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0700
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0700
CY2017	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0700
CY2019Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	210600000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	177100000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	3900000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	3000000.0	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1300000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017Q4	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	1900000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	1200000	USD
CY2019	us-gaap	Other Information Pertaining To Income Taxes OtherInformationPertainingToIncomeTaxes	1.0 million
CY2019Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	39213000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	12120000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	10818000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	7091000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	7888000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	5347000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Hedging Transactions DeferredTaxAssetsHedgingTransactions	121000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Hedging Transactions DeferredTaxAssetsHedgingTransactions	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	3131000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	2896000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Impairment Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses	964000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Impairment Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses	1028000	USD
CY2019Q4	prk	Deferredtaxassetdeferredloanfees Deferredtaxassetdeferredloanfees	1451000	USD
CY2018Q4	prk	Deferredtaxassetdeferredloanfees Deferredtaxassetdeferredloanfees	1221000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	477000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	556000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	2132000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	1567000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	206000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	4094000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	4663000	USD
CY2019Q4	prk	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	3097000	USD
CY2018Q4	prk	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	843000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	824000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	35521000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	37014000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	4662000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	0	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	585000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	6231000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	6120000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	19238000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	19133000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	2153000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	2137000	USD
CY2019Q4	prk	Deferred Tax Liabilities Partnership Adjustments DeferredTaxLiabilitiesPartnershipAdjustments	178000	USD
CY2018Q4	prk	Deferred Tax Liabilities Partnership Adjustments DeferredTaxLiabilitiesPartnershipAdjustments	630000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost	49000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost	769000	USD
CY2019Q4	prk	Deferred Tax Liabilities Operating Lease Right Of Use Asset DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset	2932000	USD
CY2018Q4	prk	Deferred Tax Liabilities Operating Lease Right Of Use Asset DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset	0	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	2697000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	0	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	488000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	210000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	28999000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	3692000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	8015000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	14797000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	12700000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	20660000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1191000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	352000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	0	USD
CY2019	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	6927000	USD
CY2018	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	7322000	USD
CY2017	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	10278000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-815000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	481000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	3289000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-29000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	57000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22071000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20912000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34227000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.020
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.018
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.028
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.008
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.011
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.014
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0.015
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0.013
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0.019
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends	0.006
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends	0.006
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends	0.010
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.010
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Assets EffectiveIncomeTaxRateReconciliationDispositionOfAssets	0
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Assets EffectiveIncomeTaxRateReconciliationDispositionOfAssets	-0.006
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Assets EffectiveIncomeTaxRateReconciliationDispositionOfAssets	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.016
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.003
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.177
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.159
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.289
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017Q4	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	1900000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	1200000	USD
CY2019	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	1200000	USD
CY2018	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	409000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1226000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	664000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	633000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	12000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	10000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	117000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	781000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	3000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	9000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	283000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	229000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	77000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	954000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1226000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	664000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	900000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	1100000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	500000	USD
CY2019	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	7500	USD
CY2018	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	-79500	USD
CY2017	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	-3500	USD
CY2019Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	146000	USD
CY2018Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	153500	USD
CY2017Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	74000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	29672000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-20116000	USD
CY2018Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	0	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-49788000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	-1511000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax	37322000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-454000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	38379000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	1487000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-333000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	0	USD
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-1820000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-2998000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	37655000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-454000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	40199000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	26674000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	17539000	USD
CY2019Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	-454000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-9589000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	23526000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-2928000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-26454000	USD
CY2017Q4	us-gaap	New Accounting Pronouncement Or Change In Accounting Principle Cumulative Effect Of Change On Equity Or Net Assets1 NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1	-995000	USD
CY2017Q4	us-gaap	New Accounting Pronouncement Or Change In Accounting Principle Cumulative Effect Of Change On Equity Or Net Assets1 NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1	-995000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	4046000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax	-17586000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-21632000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	1075000	USD
CY2018	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-3099000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	2971000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-15562000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-18533000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	29672000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-20116000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-49788000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	14740000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3005000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-17745000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	9241000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax	1261000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-7980000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	455000	USD
CY2017	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-729000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	8786000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	77000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-8709000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	23526000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-2928000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-26454000	USD
CY2019	us-gaap	Debt Securities Held To Maturity Transfer Amount DebtSecuritiesHeldToMaturityTransferAmount	373900000	USD
CY2019Q4	us-gaap	Other Comprehensive Income Reclassification Adjustment For Held To Maturity Transferred To Available For Sale Securities Before Tax OtherComprehensiveIncomeReclassificationAdjustmentForHeldToMaturityTransferredToAvailableForSaleSecuritiesBeforeTax	24200000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Transfers From Held To Maturity To Available For Sale Securities Net Of Tax OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax	19100000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	1882000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	1361000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	576000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	1882000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	1361000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	576000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	395000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	286000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	121000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	1487000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	1075000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	455000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	421000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	2562000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-1821000	USD
CY2019	prk	Other Comprehensive Income Loss Reclassification Adjustmentfrom Aoc Irelatedto Securites Tax OtherComprehensiveIncomeLossReclassificationAdjustmentfromAOCIrelatedtoSecuritesTax	88000	USD
CY2018	prk	Other Comprehensive Income Loss Reclassification Adjustmentfrom Aoc Irelatedto Securites Tax OtherComprehensiveIncomeLossReclassificationAdjustmentfromAOCIrelatedtoSecuritesTax	538000	USD
CY2017	prk	Other Comprehensive Income Loss Reclassification Adjustmentfrom Aoc Irelatedto Securites Tax OtherComprehensiveIncomeLossReclassificationAdjustmentfromAOCIrelatedtoSecuritesTax	-637000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	102700000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	110387000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	84242000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16234342	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15488982	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15295573	shares
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	95114	shares
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	122507	shares
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	94779	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	16329456	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15611489	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15390352	shares
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.33
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.13
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.51
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.29
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.07
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.47
CY2019	us-gaap	Stock Issued During Period Shares Acquisitions StockIssuedDuringPeriodSharesAcquisitions	1037205	shares
CY2018	us-gaap	Stock Issued During Period Shares Acquisitions StockIssuedDuringPeriodSharesAcquisitions	435457	shares
CY2019Q4	us-gaap	Statutory Accounting Practices Statutory Amount Available For Dividend Payments Without Regulatory Approval StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithoutRegulatoryApproval	80400000	USD
CY2019Q4	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	1309896000	USD
CY2018Q4	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	1012820000	USD
CY2019Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	17195000	USD
CY2018Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	13334000	USD
CY2019Q4	prk	Principal Amount Outstanding On Sold Loans Servicing Retained PrincipalAmountOutstandingOnSoldLoansServicingRetained	1447000000	USD
CY2018Q4	prk	Principal Amount Outstanding On Sold Loans Servicing Retained PrincipalAmountOutstandingOnSoldLoansServicingRetained	1389000000	USD
CY2017Q4	prk	Principal Amount Outstanding On Sold Loans Servicing Retained PrincipalAmountOutstandingOnSoldLoansServicingRetained	1371000000	USD
CY2019Q4	prk	Principal Amount Outstanding On Sold Loans Servicing Retained With Recourse PrincipalAmountOutstandingOnSoldLoansServicingRetainedWithRecourse	2300000	USD
CY2018Q4	prk	Principal Amount Outstanding On Sold Loans Servicing Retained With Recourse PrincipalAmountOutstandingOnSoldLoansServicingRetainedWithRecourse	2500000	USD
CY2017Q4	prk	Principal Amount Outstanding On Sold Loans Servicing Retained With Recourse PrincipalAmountOutstandingOnSoldLoansServicingRetainedWithRecourse	3000000.0	USD
CY2019Q4	prk	Mortgage Loans Sold With Recourse Reserve MortgageLoansSoldWithRecourseReserve	25000	USD
CY2018Q4	prk	Mortgage Loans Sold With Recourse Reserve MortgageLoansSoldWithRecourseReserve	60000	USD
CY2018Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	10178000	USD
CY2017Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	9688000	USD
CY2016Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	9266000	USD
CY2019	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	2355000	USD
CY2018	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	1591000	USD
CY2017	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	1941000	USD
CY2019	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	1870000	USD
CY2018	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	1499000	USD
CY2017	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	1624000	USD
CY2019	us-gaap	Servicing Asset At Amortized Value Valuation Allowance ServicingAssetAtAmortizedValueValuationAllowance	-593000	USD
CY2018	us-gaap	Servicing Asset At Amortized Value Valuation Allowance ServicingAssetAtAmortizedValueValuationAllowance	398000	USD
CY2017	us-gaap	Servicing Asset At Amortized Value Valuation Allowance ServicingAssetAtAmortizedValueValuationAllowance	105000	USD
CY2019Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	10070000	USD
CY2018Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	10178000	USD
CY2017Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	9688000	USD
CY2018Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	232000	USD
CY2017Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	630000	USD
CY2016Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	735000	USD
CY2019	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	593000	USD
CY2018	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	-398000	USD
CY2017	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	-105000	USD
CY2019Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	825000	USD
CY2018Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	232000	USD
CY2017Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	630000	USD
CY2019	us-gaap	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Discount Rate ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate	0.12
CY2018	us-gaap	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Discount Rate ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate	0.12
CY2018Q4	us-gaap	Deferred Rent Credit DeferredRentCredit	600000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	3165000	USD
CY2019	us-gaap	Sublease Income SubleaseIncome	383000	USD
CY2019	us-gaap	Lease Cost LeaseCost	2782000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	3192000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	505000	USD
CY2019	prk	Reductionstorightofuseassetsresultingfromreductioninleaseobligations Reductionstorightofuseassetsresultingfromreductioninleaseobligations	2855000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y2M12D
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.031
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	2921000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	2541000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2403000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2294000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1519000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	4524000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	16202000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1720000	USD
CY2019	us-gaap	Unrealized Gain Loss On Cash Flow Hedging Instruments UnrealizedGainLossOnCashFlowHedgingInstruments	575000	USD
CY2019	prk	Discount Percentage Applied To Real Estate Appraised Values DiscountPercentageAppliedToRealEstateAppraisedValues	0.15
CY2019	prk	Discount Percentage Applied To Real Estate Appraised Values DiscountPercentageAppliedToRealEstateAppraisedValues	0.15
CY2019	prk	Discount Percentage Applied To Real Estate Appraised Values DiscountPercentageAppliedToRealEstateAppraisedValues	0.15
CY2019	prk	Discount Percentage Applied To Lot Development Appraised Values DiscountPercentageAppliedToLotDevelopmentAppraisedValues	0.06
CY2019Q4	prk	Book Value Of Impaired Loans Carried At Fair Value BookValueOfImpairedLoansCarriedAtFairValue	2167000	USD
CY2019	prk	Partial Charge Offs On Impaired Loans Carried At Fair Value PartialChargeOffsOnImpairedLoansCarriedAtFairValue	313000	USD
CY2019Q4	prk	Impaired Loan Fair Value ImpairedLoanFairValue	2090000	USD
CY2019Q4	prk	Impaired Financing Receivableloansnotheldat Fair Value Recorded Investment ImpairedFinancingReceivableloansnotheldatFairValueRecordedInvestment	75324000	USD
CY2019	prk	Partial Chargeoffson Impaired Loanscarriedat Cost PartialChargeoffsonImpairedLoanscarriedatCost	406000	USD
CY2019Q4	prk	Impaired Financing Receivableloansnotheldat Fair Value Carrying Amount ImpairedFinancingReceivableloansnotheldatFairValueCarryingAmount	70171000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	77491000	USD
CY2019	prk	Partial Charge Offs On Impaired Loans PartialChargeOffsOnImpairedLoans	719000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	5230000	USD
CY2019Q4	prk	Impaired Financing Receivable Carrying Value ImpairedFinancingReceivableCarryingValue	72261000	USD
CY2018Q4	prk	Book Value Of Impaired Loans Carried At Fair Value BookValueOfImpairedLoansCarriedAtFairValue	6503000	USD
CY2018	prk	Partial Charge Offs On Impaired Loans Carried At Fair Value PartialChargeOffsOnImpairedLoansCarriedAtFairValue	3630000	USD
CY2018Q4	prk	Impaired Loan Fair Value ImpairedLoanFairValue	6399000	USD
CY2018Q4	prk	Impaired Financing Receivableloansnotheldat Fair Value Recorded Investment ImpairedFinancingReceivableloansnotheldatFairValueRecordedInvestment	41641000	USD
CY2018	prk	Partial Chargeoffson Impaired Loanscarriedat Cost PartialChargeoffsonImpairedLoanscarriedatCost	7616000	USD
CY2018Q4	prk	Impaired Financing Receivableloansnotheldat Fair Value Carrying Amount ImpairedFinancingReceivableloansnotheldatFairValueCarryingAmount	39472000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	48144000	USD
CY2018	prk	Partial Charge Offs On Impaired Loans PartialChargeOffsOnImpairedLoans	11246000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2273000	USD
CY2018Q4	prk	Impaired Financing Receivable Carrying Value ImpairedFinancingReceivableCarryingValue	45871000	USD
CY2019	prk	Impaired Financing Receivable Carried At Fair Value Related Expense ImpairedFinancingReceivableCarriedAtFairValueRelatedExpense	200000	USD
CY2018	prk	Impaired Financing Receivable Carried At Fair Value Related Expense ImpairedFinancingReceivableCarriedAtFairValueRelatedExpense	400000	USD
CY2017	prk	Impaired Financing Receivable Carried At Fair Value Related Expense ImpairedFinancingReceivableCarriedAtFairValueRelatedExpense	1600000	USD
CY2019Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	10100000	USD
CY2019Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	10100000	USD
CY2019Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	5800000	USD
CY2019Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	800000	USD
CY2019Q4	prk	Servicing Asset Recorded At Cost ServicingAssetRecordedAtCost	4300000	USD
CY2018Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	10200000	USD
CY2018Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	10200000	USD
CY2018Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	1200000	USD
CY2018Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	200000	USD
CY2018Q4	prk	Servicing Asset Recorded At Cost ServicingAssetRecordedAtCost	9000000.0	USD
CY2019	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	600000	USD
CY2018	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	-400000	USD
CY2017	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	-100000	USD
CY2019Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	4000000.0	USD
CY2018Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	4300000	USD
CY2019Q4	prk	Percentof Ore Oheldatfairvalue PercentofOREOheldatfairvalue	0.75
CY2018Q4	prk	Percentof Ore Oheldatfairvalue PercentofOREOheldatfairvalue	0.85
CY2019Q4	prk	Other Real Estate Foreclosed Assets And Repossessed Assets Fair Value OtherRealEstateForeclosedAssetsAndRepossessedAssetsFairValue	3000000.0	USD
CY2018Q4	prk	Other Real Estate Foreclosed Assets And Repossessed Assets Fair Value OtherRealEstateForeclosedAssetsAndRepossessedAssetsFairValue	3700000	USD
CY2019	prk	Oreo Devaluations OreoDevaluations	200000	USD
CY2018	prk	Oreo Devaluations OreoDevaluations	500000	USD
CY2017	prk	Oreo Devaluations OreoDevaluations	500000	USD
CY2019Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	4200000	USD
CY2018Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	4000000.0	USD
CY2019	prk	Expenserelatedtootherrepossessedassets Expenserelatedtootherrepossessedassets	0	USD
CY2018	prk	Expenserelatedtootherrepossessedassets Expenserelatedtootherrepossessedassets	269000	USD
CY2017	prk	Expenserelatedtootherrepossessedassets Expenserelatedtootherrepossessedassets	0	USD
CY2019Q4	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	8500000	USD
CY2018Q4	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	6100000	USD
CY2019	prk	Alternative Investmentincomerecognized AlternativeInvestmentincomerecognized	4800000	USD
CY2018	prk	Alternative Investmentincomerecognized AlternativeInvestmentincomerecognized	1400000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	159956000	USD
CY2019Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1209701000	USD
CY2019Q4	us-gaap	Mortgages Held For Sale Fair Value Disclosure MortgagesHeldForSaleFairValueDisclosure	12278000	USD
CY2019Q4	us-gaap	Derivative Assets DerivativeAssets	221000	USD
CY2019Q4	prk	Impaired Loan Fair Value ImpairedLoanFairValue	2090000	USD
CY2019Q4	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	6426869000	USD
CY2019Q4	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	6441458000	USD
CY2019Q4	prk	Time Deposits Fair Value TimeDepositsFairValue	1145537000	USD
CY2019Q4	us-gaap	Other Liabilities Fair Value Disclosure OtherLiabilitiesFairValueDisclosure	1273000	USD
CY2019Q4	us-gaap	Deposits Fair Value Disclosure DepositsFairValueDisclosure	1146810000	USD
CY2019Q4	us-gaap	Shortterm Debt Fair Value ShorttermDebtFairValue	230657000	USD
CY2019Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	200726000	USD
CY2019Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Subordinated Debt Obligations FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations	14372000	USD
CY2019	us-gaap	Unrealized Gain Loss On Cash Flow Hedging Instruments UnrealizedGainLossOnCashFlowHedgingInstruments	575000	USD
CY2019	us-gaap	Unrealized Gain Loss On Cash Flow Hedging Instruments UnrealizedGainLossOnCashFlowHedgingInstruments	575000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	167214000	USD
CY2018Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	1354843000	USD
CY2018Q4	us-gaap	Mortgages Held For Sale Fair Value Disclosure MortgagesHeldForSaleFairValueDisclosure	4158000	USD
CY2018Q4	us-gaap	Derivative Assets DerivativeAssets	87000	USD
CY2018Q4	prk	Impaired Loan Fair Value ImpairedLoanFairValue	6399000	USD
CY2018Q4	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	5570136000	USD
CY2018Q4	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	5580780000	USD
CY2018Q4	prk	Time Deposits Fair Value TimeDepositsFairValue	1044620000	USD
CY2018Q4	us-gaap	Other Liabilities Fair Value Disclosure OtherLiabilitiesFairValueDisclosure	1267000	USD
CY2018Q4	us-gaap	Deposits Fair Value Disclosure DepositsFairValueDisclosure	1045887000	USD
CY2018Q4	us-gaap	Shortterm Debt Fair Value ShorttermDebtFairValue	221966000	USD
CY2018Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	400203000	USD
CY2018Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Subordinated Debt Obligations FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations	12959000	USD
CY2015Q4	prk	Capital Conservation Buffer CapitalConservationBuffer	0.00625
CY2019Q4	prk	Capital Conservation Buffer CapitalConservationBuffer	0.0250
CY2019Q4	prk	Capital Conservation Buffer CapitalConservationBuffer	0.0250
CY2019Q4	prk	Capital Conservation Buffer CapitalConservationBuffer	0.0250
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	297737000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	6171000	USD
CY2019	prk	Other Income Loss And Security Gains OtherIncomeLossAndSecurityGains	97193000	USD
CY2019	us-gaap	Noninterest Expense NoninterestExpense	263988000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	124771000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22071000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	102700000	USD
CY2019Q4	us-gaap	Assets Assets	8558377000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	6501404000	USD
CY2019Q4	us-gaap	Deposits Deposits	7052612000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	266898000	USD
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	7945000	USD
CY2018	prk	Other Income Loss And Security Gains OtherIncomeLossAndSecurityGains	101101000	USD
CY2018	us-gaap	Noninterest Expense NoninterestExpense	228755000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	131299000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20912000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	110387000	USD
CY2018Q4	us-gaap	Assets Assets	7804308000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	5692132000	USD
CY2018Q4	us-gaap	Deposits Deposits	6260860000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	243759000	USD
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	8557000	USD
CY2017	prk	Other Income Loss And Security Gains OtherIncomeLossAndSecurityGains	86429000	USD
CY2017	us-gaap	Noninterest Expense NoninterestExpense	203162000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	118469000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34227000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	84242000	USD
CY2017Q4	us-gaap	Assets Assets	7537620000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	5372483000	USD
CY2017Q4	us-gaap	Deposits Deposits	5817326000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	297737000	USD
CY2019	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	9112000	USD
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	254876000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22071000	USD
CY2019Q4	us-gaap	Assets Assets	8558377000	USD
CY2019Q4	us-gaap	Deposits Deposits	7052612000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	266898000	USD
CY2018	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	8585000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20912000	USD
CY2018	us-gaap	Other Noninterest Expense OtherNoninterestExpense	220170000	USD
CY2018Q4	us-gaap	Assets Assets	7804308000	USD
CY2018Q4	us-gaap	Deposits Deposits	6260860000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	243759000	USD
CY2017	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	8644000	USD
CY2017	us-gaap	Other Noninterest Expense OtherNoninterestExpense	194518000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34227000	USD
CY2017Q4	us-gaap	Assets Assets	7537620000	USD
CY2017Q4	us-gaap	Deposits Deposits	5817326000	USD
CY2019	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	-4204000	USD
CY2018	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	-3267000	USD
CY2017	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	0	USD
CY2019	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	28630000	USD
CY2018	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	30684000	USD
CY2017	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	USD
CY2019	prk	Otherinvestingactivitiesnet Otherinvestingactivitiesnet	5723000	USD
CY2018	prk	Otherinvestingactivitiesnet Otherinvestingactivitiesnet	60000	USD
CY2017	prk	Otherinvestingactivitiesnet Otherinvestingactivitiesnet	0	USD
CY2019	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0	USD
CY2018	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0	USD
CY2017	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	30000000	USD
CY2019	prk	Personaltrustandagencyaccountsincome Personaltrustandagencyaccountsincome	9001000	USD
CY2019	prk	Employeebenefitandretirementrelatedaccountsincome Employeebenefitandretirementrelatedaccountsincome	7178000	USD
CY2019	prk	Investmentmanagementandinvestmentadvisoryagencyaccountsincome Investmentmanagementandinvestmentadvisoryagencyaccountsincome	10024000	USD
CY2019	prk	Otherincomefromfiduciaryactivities Otherincomefromfiduciaryactivities	1565000	USD
CY2019	prk	Nonsufficientfunds Ns Ffees NonsufficientfundsNSFfees	7073000	USD
CY2019	prk	Demanddepositaccount Dd Acharges DemanddepositaccountDDAcharges	3105000	USD
CY2019	prk	Otherservicechargesondepositaccounts Otherservicechargesondepositaccounts	657000	USD
CY2019	prk	Creditcardotherserviceincome Creditcardotherserviceincome	2361000	USD
CY2019	prk	Helo Cotherserviceincome HELOCotherserviceincome	407000	USD
CY2019	prk	Installmentotherserviceincome Installmentotherserviceincome	173000	USD
CY2019	prk	Realestateotherserviceincome Realestateotherserviceincome	11158000	USD
CY2019	prk	Commercialotherserviceincome Commercialotherserviceincome	1401000	USD
CY2019	prk	Checkcard Fee Income CheckcardFeeIncome	20250000	USD
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	4557000	USD
CY2019	prk	Atm Fees AtmFees	1828000	USD
CY2019	prk	Oreo Devaluations OreoDevaluations	225000	USD
CY2019	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-222000	USD
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-421000	USD
CY2019	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	5118000	USD
CY2019	prk	Othercomponentsofnetperiodicbenefitincome Othercomponentsofnetperiodicbenefitincome	4732000	USD
CY2018	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	6815000	USD
CY2019	us-gaap	Noninterest Income Other NoninterestIncomeOther	7473000	USD
CY2019	us-gaap	Noninterest Income NoninterestIncome	97193000	USD
CY2019	us-gaap	Noninterest Income Other NoninterestIncomeOther	7500000	USD
CY2018	prk	Personaltrustandagencyaccountsincome Personaltrustandagencyaccountsincome	8495000	USD
CY2018	prk	Employeebenefitandretirementrelatedaccountsincome Employeebenefitandretirementrelatedaccountsincome	6863000	USD
CY2018	prk	Investmentmanagementandinvestmentadvisoryagencyaccountsincome Investmentmanagementandinvestmentadvisoryagencyaccountsincome	9352000	USD
CY2018	prk	Otherincomefromfiduciaryactivities Otherincomefromfiduciaryactivities	1583000	USD
CY2018	prk	Nonsufficientfunds Ns Ffees NonsufficientfundsNSFfees	7483000	USD
CY2018	prk	Demanddepositaccount Dd Acharges DemanddepositaccountDDAcharges	3310000	USD
CY2018	prk	Otherservicechargesondepositaccounts Otherservicechargesondepositaccounts	668000	USD
CY2018	prk	Creditcardotherserviceincome Creditcardotherserviceincome	2239000	USD
CY2018	prk	Helo Cotherserviceincome HELOCotherserviceincome	471000	USD
CY2018	prk	Installmentotherserviceincome Installmentotherserviceincome	243000	USD
CY2018	prk	Realestateotherserviceincome Realestateotherserviceincome	9079000	USD
CY2018	prk	Commercialotherserviceincome Commercialotherserviceincome	2234000	USD
CY2018	prk	Checkcard Fee Income CheckcardFeeIncome	17317000	USD
CY2017	us-gaap	Noninterest Income Other NoninterestIncomeOther	5400000	USD
CY2018	prk	Atm Fees AtmFees	1978000	USD
CY2018	prk	Oreo Devaluations OreoDevaluations	491000	USD
CY2018	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	4235000	USD
CY2018	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-2271000	USD
CY2018	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	4616000	USD
CY2018	prk	Othercomponentsofnetperiodicbenefitincome Othercomponentsofnetperiodicbenefitincome	6820000	USD
CY2018	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	2826000	USD
CY2018	us-gaap	Noninterest Income Other NoninterestIncomeOther	7236000	USD
CY2018	us-gaap	Noninterest Income NoninterestIncome	101101000	USD
CY2018	us-gaap	Noninterest Income Other NoninterestIncomeOther	7200000	USD
CY2017	prk	Personaltrustandagencyaccountsincome Personaltrustandagencyaccountsincome	7752000	USD
CY2017	prk	Employeebenefitandretirementrelatedaccountsincome Employeebenefitandretirementrelatedaccountsincome	6234000	USD
CY2017	prk	Investmentmanagementandinvestmentadvisoryagencyaccountsincome Investmentmanagementandinvestmentadvisoryagencyaccountsincome	8386000	USD
CY2017	prk	Otherincomefromfiduciaryactivities Otherincomefromfiduciaryactivities	1363000	USD
CY2017	prk	Nonsufficientfunds Ns Ffees NonsufficientfundsNSFfees	8122000	USD
CY2017	prk	Demanddepositaccount Dd Acharges DemanddepositaccountDDAcharges	3847000	USD
CY2017	prk	Otherservicechargesondepositaccounts Otherservicechargesondepositaccounts	684000	USD
CY2017	prk	Creditcardotherserviceincome Creditcardotherserviceincome	1981000	USD
CY2017	prk	Helo Cotherserviceincome HELOCotherserviceincome	478000	USD
CY2017	prk	Installmentotherserviceincome Installmentotherserviceincome	387000	USD
CY2017	prk	Realestateotherserviceincome Realestateotherserviceincome	9005000	USD
CY2017	prk	Commercialotherserviceincome Commercialotherserviceincome	1311000	USD
CY2017	prk	Checkcard Fee Income CheckcardFeeIncome	15798000	USD
CY2017	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	4858000	USD
CY2017	prk	Atm Fees AtmFees	2253000	USD
CY2017	prk	Oreo Devaluations OreoDevaluations	458000	USD
CY2017	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	251000	USD
CY2017	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	1821000	USD
CY2017	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	1210000	USD
CY2017	prk	Othercomponentsofnetperiodicbenefitincome Othercomponentsofnetperiodicbenefitincome	5794000	USD
CY2017	us-gaap	Noninterest Income Other NoninterestIncomeOther	5352000	USD
CY2017	us-gaap	Noninterest Income NoninterestIncome	86429000	USD
CY2019Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	81856000	USD
CY2019Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	92226000	USD
CY2019Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	94589000	USD
CY2019Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	91829000	USD
CY2019Q1	us-gaap	Interest Expense InterestExpense	14080000	USD
CY2019Q2	us-gaap	Interest Expense InterestExpense	16375000	USD
CY2019Q3	us-gaap	Interest Expense InterestExpense	17488000	USD
CY2019Q4	us-gaap	Interest Expense InterestExpense	14820000	USD
CY2019Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	67776000	USD
CY2019Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	75851000	USD
CY2019Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	77101000	USD
CY2019Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	77009000	USD
CY2019Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2498000	USD
CY2019Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1919000	USD
CY2019Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1967000	USD
CY2019Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-213000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	30476000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	26548000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	37532000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	30215000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	25455000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	22163000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	31146000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	23936000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.63
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.34
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.90
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.46
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.62
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.33
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.89
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.45
CY2019Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15651541000	shares
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16560545000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16382798000	shares
CY2019Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16342485000	shares
CY2019Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15744777000	shares
CY2019Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	16642571000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	16475741000	shares
CY2019Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	16454553000	shares
CY2018Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	73714000	USD
CY2018Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	74691000	USD
CY2018Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	80229000	USD
CY2018Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	82167000	USD
CY2018Q1	us-gaap	Interest Expense InterestExpense	8864000	USD
CY2018Q2	us-gaap	Interest Expense InterestExpense	9949000	USD
CY2018Q3	us-gaap	Interest Expense InterestExpense	12553000	USD
CY2018Q4	us-gaap	Interest Expense InterestExpense	12537000	USD
CY2018Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	64850000	USD
CY2018Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	64742000	USD
CY2018Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	67676000	USD
CY2018Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	69630000	USD
CY2018Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	260000	USD
CY2018Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1386000	USD
CY2018Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2940000	USD
CY2018Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	3359000	USD
CY2018Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	37185000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	34064000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	29484000	USD
CY2018Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	30566000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	31123000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	28241000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	24762000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	26261000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.04
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.85
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.58
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.67
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.02
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.83
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.56
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.67
CY2018Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15288332000	shares
CY2018Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15285532000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15686542000	shares
CY2018Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15695522000	shares
CY2018Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15431625000	shares
CY2018Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15417607000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15832734000	shares

Files In Submission

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2018 Q4 Form 10-K Financial Statement

#000080567620000040 Filed on February 28, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$PRK Park National Corp Stock $prk

2018 Q4 Form 10-K Financial Statement

#000080567620000040 Filed on February 28, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$PRK
Park National Corp Stock $prk