XML 60 R50.htm IDEA: XBRL DOCUMENT v3.24.3

LOANS AND LEASES - Additional Information (Details)	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) Loan	Dec. 31, 2023 USD ($)
Financing Receivable Recorded Investment Past Due [Line Items]
Loan receivable, validate risk ratings performed for large sample or new lending to existing relationships		$ 1,000,000
Loan receivable, validate risk ratings performed for criticized and classified rated borrowers with relationship exposure, value		500,000
Loan receivable, validate risk ratings performed for new federal reserve board regulation "O" loan commitments, value		1,000,000
Loan receivable validate risk ratings performed for leveraged loans, value		1,000,000
Loan receivable validate risk ratings performed for no borrower with commitments, value		500,000
Allowance for credit losses, recorded investment nonaccrual status		80,453,000	$ 61,324,000
Financial receivable modifications	$ 0
Multifamily Property [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable individually evaluated loan		$ 15,100,000
Number of multifamily loans | Loan		2
Equipment Financing Lease [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Number of loans modified | Loan		1
Financing receivable modified in period amount		$ 10,500,000
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Number of loans modified | Loan		1
Financing receivable modified in period amount		$ 17,300,000
Commercial Portfolio Segment [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Number of loans modified | Loan		1
Financing receivable modified in period amount		$ 11,700,000
Substandard [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable individually evaluated loan		80,000,000	$ 60,600,000
Substandard [Member] | Multifamily Property [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable increase in individually evaluated substandard loans		$ 31,800,000
Number of multifamily loans | Loan		6
Substandard [Member] | 30-89 Days Past Due [Member] | Multifamily Property [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Allowance for credit losses, recorded investment nonaccrual status		$ 19,700,000
Minimum [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Loan receivable, validate risk ratings performed for large sample of borrowers with relationship, value		1,000,000
Maximum [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Loan receivable, validate risk ratings performed for small sample of borrowers with relationship, value		$ 1,000,000

X

- Definition

Financial receivable modifications post modification recorded investment.

+ References

No definition available.

+ Details

Name:	pgc_FinancialReceivableModificationsPostModificationRecordedInvestment
Namespace Prefix:	pgc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Financing receivable increase in individually evaluated substandard loans.

+ References

No definition available.

+ Details

Name:	pgc_FinancingReceivableIncreaseInIndividuallyEvaluatedSubstandardLoans
Namespace Prefix:	pgc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Financing receivable number of loans modified.

+ References

No definition available.

+ Details

Name:	pgc_FinancingReceivableNumberOfLoansModified
Namespace Prefix:	pgc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Financing receivable substandard and individually evaluated loan.

+ References

No definition available.

+ Details

Name:	pgc_FinancingReceivableSubstandardAndIndividuallyEvaluatedLoan
Namespace Prefix:	pgc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Loan receivable, validate risk ratings performed for criticized and classified rated borrowers with relationship exposure, value.

+ References

No definition available.

+ Details

Name:	pgc_LoanReceivableValidateRiskRatingsPerformedForCriticizedAndClassifiedRatedBorrowersWithRelationshipExposureValue
Namespace Prefix:	pgc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Loan receivable, validate risk ratings performed for large sample of borrowers with relationship, value.

+ References

No definition available.

+ Details

Name:	pgc_LoanReceivableValidateRiskRatingsPerformedForLargeSampleOfBorrowersWithRelationshipValue
Namespace Prefix:	pgc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Loan receivable, validate risk ratings performed for large sample or new lending to existing relationships, value.

+ References

No definition available.

+ Details

Name:	pgc_LoanReceivableValidateRiskRatingsPerformedForLargeSampleOrNewLendingToExistingRelationshipsValue
Namespace Prefix:	pgc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Loan receivable validate risk ratings performed for leveraged loans, value.

+ References

No definition available.

+ Details

Name:	pgc_LoanReceivableValidateRiskRatingsPerformedForLeveragedLoansValue
Namespace Prefix:	pgc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Loan receivable validate risk ratings performed for new federal reserve board regulation loan commitments value.

+ References

No definition available.

+ Details

Name:	pgc_LoanReceivableValidateRiskRatingsPerformedForNewFederalReserveBoardRegulationLoanCommitmentsValue
Namespace Prefix:	pgc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Loan receivable validate risk ratings performed for no borrower with commitments, value.

+ References

No definition available.

+ Details

Name:	pgc_LoanReceivableValidateRiskRatingsPerformedForNoBorrowerWithCommitmentsValue
Namespace Prefix:	pgc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Loan receivable, validate risk ratings performed for Small sample of borrowers with relationship, value.

+ References

No definition available.

+ Details

Name:	pgc_LoanReceivableValidateRiskRatingsPerformedForSmallSampleOfBorrowersWithRelationshipValue
Namespace Prefix:	pgc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Number of multifamily loans.

+ References

No definition available.

+ Details

Name:	pgc_NumberOfMultifamilyLoans
Namespace Prefix:	pgc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amortized cost of financing receivable modified during period for debtor experiencing financial difficulty.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 33
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-33

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481933/310-10-55-12A

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-42

+ Details

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

X

- Definition

Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph a
-Subparagraph (3)
-Publisher SEC

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph a
-Subparagraph (2)
-Publisher SEC

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

+ Details

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

X

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-14

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 80
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-80

+ Details

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

X

- Details

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

X

- Details

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

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=pgc_FinancialAsset3089DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: