Name:	pnfp_FinancingReceivableModificationsAccruingAsOfRestructureDate
Namespace Prefix:	pnfp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the amount of financing receivables exposure to credit risk.

No definition available.

Name:	pnfp_FinancingReceivablesExposure
Namespace Prefix:	pnfp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the amount of financing receivables principal balance outstanding.

No definition available.

Name:	pnfp_FinancingReceivablesPrincipalBalance
Namespace Prefix:	pnfp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the amount of commitments made by a financial institution that are contractual obligations for future funding.

No definition available.

Name:	pnfp_FinancingReceivablesUnfundedCommitment
Namespace Prefix:	pnfp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Name:	pnfp_LoanPortfolioCreditRiskExposureAbstract
Namespace Prefix:	pnfp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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

Name:	pnfp_TroubledDebtRestructuringCategorizedByLoanClassificationAbstract
Namespace Prefix:	pnfp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Number of financing receivables that have been modified by troubled debt restructurings.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 33

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953676-111524

Name:	us-gaap_FinancingReceivableModificationsNumberOfContracts2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

Name:	us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

Name:	us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Name:	pnfp_AllIndustriesAxis=pnfp_LessorsOfNonresidentialBuildingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	pnfp_AllIndustriesAxis=pnfp_LessorsOfResidentialBuildingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=pnfp_CommercialAndIndustrialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstateConstructionFinancingReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConsumerOtherFinancingReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: