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

Refers to consumer loan previously classified as troubled debt restructurings to nonaccrual status due to their lack of performance.

No definition available.

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

Refers to troubled debt restructurings that occurred during the period are factored into the determination of the allowance for credit losses.

No definition available.

Name:	pnfp_FinancingReceivableModificationsRelatedAllowance
Namespace Prefix:	pnfp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

- Details

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.

No definition available.

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

Refers to number of commercial loans previously classified as troubled debt restructurings to nonaccrual status due to their lack of performance.

No definition available.

Name:	pnfp_NumberOfCommercialLoans
Namespace Prefix:	pnfp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Refers to number of consumer loans previously classified as troubled debt restructurings to nonaccrual status due to their lack of performance.

No definition available.

Name:	pnfp_NumberOfConsumerLoans
Namespace Prefix:	pnfp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Details

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=7512638&loc=SL6953676-111524

Name:	us-gaap_FinancingReceivableModificationsNumberOfContracts1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Amount of investment in financing receivables (after modification) modified by troubled debt restructurings.

Name:	us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of investment in financing receivables (before modification) modified by troubled debt restructurings.