Financing receivable increase in individually evaluated substandard loans.

No definition available.

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

Financing receivable substandard and individually evaluated loan.

+ References

No definition available.

+ Details

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- Definition

Period gain (loss) on loans held for sale at lower of cost or fair value.

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Loans And Leases Receivable, Held At Cost Or Fair Value.

+ References

No definition available.

+ Details

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

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-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

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- 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

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- Details

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- Details

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LOANS - Additional Information (Details)	12 Months Ended
LOANS - Additional Information (Details)	Dec. 31, 2023 USD ($) Loan	Dec. 31, 2022 USD ($) Loan	Dec. 31, 2021 USD ($) Loan
Financing Receivable Recorded Investment Past Due [Line Items]
Loans held for sale, at lower of cost or fair value	$ 6,695,000	$ 15,626,000
Gain (loss) on loans held for sale at lower of cost or fair value			$ 1,142,000
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
Number of Loans \| Loan		1	5
Troubled debt restructurings specific reserves to customers	1,200,000
Substandard [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable individually evaluated loan	60,600,000	$ 14,700,000
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
Multifamily Property [Member] \| Substandard [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable increase in individually evaluated substandard loans	$ 16,600,000
Number of Loans \| Loan	3
Investment Property [Member] \| Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Number of Loans \| Loan		1
Freight Credit [Member] \| Substandard [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable increase in individually evaluated substandard loans	$ 23,500,000
Number of Loans \| Loan	1