XML 128 R63.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Investment Securities - Narrative (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Schedule of Investments [Line Items] |  |  |
Other than temporary impairment on investment securities | $ 17,000 | $ 54,000 | $ 0
Amortized cost of securities available-for-sale | 1,222,143,000 | 1,099,658,000 |
Amortized cost of held-to-maturity securities | 182,061,000 | 401,390,000 |
Federal home loan bank stock | 59,000,000 | 59,031,000 |
Federal reserve bank stock | 6,900,000 | 6,876,000 |
Federal Home Loan Bank (FHLB) advance borrowings | 1,321,000,000 | 1,364,000,000 |
Money pledged for government and trust department deposits | 639,000,000 | 655,000,000 |
Money pledged to secure repurchase agreements | 648,000,000 | 667,000,000 |
Money pledged as collateral for FHLB advance borrowings | 34,000,000 | 41,000,000 |
Percentage of amount greater than shareholder's equity | 10.00% |  |
Proceeds from sale of investment securities | 75,000,000 | 0 |
U.S. Treasury and sponsored entities callable notes |  |  |
Schedule of Investments [Line Items] |  |  |
Available-for-sale securities | 525,100,000 |  |
Available for Sale expected to be called | 46,800,000 |  |
U.S. Government sponsored entity asset-backed securities |  |  |
Schedule of Investments [Line Items] |  |  |
Asset-backed securities mortgage portfolio, maturity term | 15 years |  |
Amortized cost of securities available-for-sale | 650,391,000 | 401,882,000 |
Amortized cost of held-to-maturity securities | 181,821,000 | 400,820,000 |
Residential mortgage-backed securities |  |  |
Schedule of Investments [Line Items] |  |  |
Amortized cost of securities available-for-sale | 340,400,000 |  |
Amortized cost of held-to-maturity securities | 100,000 |  |
Collateralized mortgage-backed securities |  |  |
Schedule of Investments [Line Items] |  |  |
Amortized cost of securities available-for-sale | 310,000,000 |  |
Amortized cost of held-to-maturity securities | 181,700,000 |  |
U.S. Government sponsored entity mortgage-backed securities |  |  |
Schedule of Investments [Line Items] |  |  |
Proceeds from sale of investment securities |  |  | 610,000,000
Available-for-sale securities, pre-tax gain |  |  | 28,800,000
Available-for-sale securities, after tax gain |  |  | $ 18,700,000
Minimum | U.S. Treasury and sponsored entities callable notes |  |  |
Schedule of Investments [Line Items] |  |  |
Callable securities, maturity term | 9 years |  |
Maximum | U.S. Treasury and sponsored entities callable notes |  |  |
Schedule of Investments [Line Items] |  |  |
Callable securities, maturity term | 14 years |  |

X
- Definition Available for Sale expected to be called + References No definition available. + Details
Name: | prk_AvailableForSaleExpectedToBeCalled
Namespace Prefix: | prk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Available for Sale Securities, Debt Maturities, Term + References No definition available. + Details
Name: | prk_AvailableForSaleSecuritiesDebtMaturitiesTerm
Namespace Prefix: | prk_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition Available-for-sale Securities, Realized Gain (Loss), Net of Tax + References No definition available. + Details
Name: | prk_AvailableForSaleSecuritiesRealizedGainLossNetOfTax
Namespace Prefix: | prk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Investments in Debt and Marketable Securities, Asset-backed Securities, Mortgage Portfolio Description, Mortgage Term + References No definition available. + Details
Name: | prk_InvestmentsInDebtAndMarketableSecuritiesAssetBackedSecuritiesMortgagePortfolioDescriptionMortgageTerm
Namespace Prefix: | prk_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Money Pledged as Collateral for FHLB Advance Borrowings + References No definition available. + Details
Name: | prk_MoneyPledgedAsCollateralForFhlbAdvanceBorrowings
Namespace Prefix: | prk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Money Pledged for Government and Trust Department Deposits + References No definition available. + Details
Name: | prk_MoneyPledgedForGovernmentAndTrustDepartmentDeposits
Namespace Prefix: | prk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Money Pledged to Secure Repurchase Agreements + References No definition available. + Details
Name: | prk_MoneyPledgedToSecureRepurchaseAgreements
Namespace Prefix: | prk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Percentage of amount greater than shareholder's equity. + References No definition available. + Details
Name: | prk_PercentageOfAmountGreaterThanShareholdersEquity
Namespace Prefix: | prk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_AvailableForSaleSecuritiesAmortizedCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of debt securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -Subparagraph (b)-(g) -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 + Details
Name: | us-gaap_AvailableForSaleSecuritiesDebtSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesGrossRealizedGains
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of Federal Home Loan Bank (FHLBank) advances to member financial institutions. + References No definition available. + Details
Name: | us-gaap_FederalHomeLoanBankAdvances
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 325 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6478792&loc=d3e63345-112809 + Details
Name: | us-gaap_FederalHomeLoanBankStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Federal Reserve Bank stock represents an equity interest in the Federal Reserve Bank. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 325 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6478792&loc=d3e63345-112809 + Details
Name: | us-gaap_FederalReserveBankStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.6) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_HeldToMaturitySecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 35 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=27723805&loc=d3e25351-111560 + Details
Name: | us-gaap_ImpairmentOfInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow associated with the sale of other investments not otherwise defined in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3574-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromSaleOfOtherInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_ScheduleOfInvestmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration