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

Share-based Compensation Arrangement by Share-based Payment Award, Options, Acquisitions in Period

No definition available.

Name:	pnfp_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsAcquisitionsinPeriod
Namespace Prefix:	pnfp_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Represents the weighted average remaining period of sharebased compensation expense as of period end date.

No definition available.

Name:	pnfp_WeightedAverageRemainingPeriodofSharebasedCompensationExpense
Namespace Prefix:	pnfp_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Amount of noncash expense for share-based payment arrangement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

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

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.

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901