Name:	pnfp_FinancingReceivableModificationsAccruingAsOfRestructureDate
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For an unclassified balance sheet, reflects the maximum permissible amount of unpaid loan amounts due from related parties at the balance sheet date.

No definition available.

Name:	pnfp_LoansAndLeasesMaximumPermissibleReceivableRelatedParties
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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Refers to percentage of credit exposure (loans outstanding plus unfunded lines of credit) to total risk based capital to borrowers in certain industries.

No definition available.

Name:	pnfp_PercentageOfCreditExposureToRiskBasedCapital
Namespace Prefix:	pnfp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Refers to percentage of loan portfolio analyzed as commercial loan type with a specifically assigned risk rating in the allowance for loan loss assessment.

No definition available.

Name:	pnfp_PercentageOfLoanPortfolioAsCommercialLoan
Namespace Prefix:	pnfp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The amount of risk rated loans that are subject to continual review by the loan officer at the end of the period,

No definition available.

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

No definition available.

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The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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-Topic 230
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-Section 45
-Paragraph 28
-Subparagraph (b)
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Name:	us-gaap_GainLossOnSaleOfMortgageLoans
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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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-Topic 310
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-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524

Name:	us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
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Amount of interest income recognized on a cash-basis method of accounting that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

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Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period).

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Name:	us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans
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For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
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-Section 50
-Paragraph 1
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Amount, after allowance for bad debt, of commercial and industrial loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.

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Name:	us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroupCommercialAndIndustrial
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Amount, after allowance for bad debt, of mortgage loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.

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Data Type:	xbrli:monetaryItemType
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The cash inflow from sales of loans that are secured with real estate mortgages and are held with the intention to resell in the near future.

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-Publisher FASB
-Name Accounting Standards Codification
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