Loans Nonaccrual and Past Due Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Loans
Nonaccrual Loans	$ 15,692	$ 21,325
Accruing Loans 90 Days Past Due	1,626	3,771
Originated Loan
Loans
Nonaccrual Loans	12,761	16,774
Accruing Loans 90 Days Past Due	614	193
Originated Loan \| Commercial real estate, construction
Loans
Nonaccrual Loans	754	826
Accruing Loans 90 Days Past Due	0	0
Originated Loan \| Commercial real estate, other
Loans
Nonaccrual Loans	6,877	9,934
Accruing Loans 90 Days Past Due	0	0
Originated Loan \| Commercial real estate
Loans
Nonaccrual Loans	7,631	10,760
Accruing Loans 90 Days Past Due	0	0
Originated Loan \| Commercial and industrial
Loans
Nonaccrual Loans	739	1,712
Accruing Loans 90 Days Past Due	0	0
Originated Loan \| Residential real estate
Loans
Nonaccrual Loans	3,546	3,778
Accruing Loans 90 Days Past Due	548	183
Originated Loan \| Home equity lines of credit
Loans
Nonaccrual Loans	550	383
Accruing Loans 90 Days Past Due	50	0
Originated Loan \| Consumer, indirect
Loans
Nonaccrual Loans	256	130
Accruing Loans 90 Days Past Due	0	10
Originated Loan \| Consumer, other
Loans
Nonaccrual Loans	39	11
Accruing Loans 90 Days Past Due	16	0
Originated Loan \| Consumer, other
Loans
Nonaccrual Loans	295	141
Accruing Loans 90 Days Past Due	16	10
Acquired Loans
Loans
Nonaccrual Loans	2,931	4,551
Accruing Loans 90 Days Past Due	1,012	3,578
Acquired Loans \| Commercial real estate, other
Loans
Nonaccrual Loans	192	1,609
Accruing Loans 90 Days Past Due	215	1,506
Acquired Loans \| Commercial and industrial
Loans
Nonaccrual Loans	259	390
Accruing Loans 90 Days Past Due	45	387
Acquired Loans \| Residential real estate
Loans
Nonaccrual Loans	2,168	2,317
Accruing Loans 90 Days Past Due	730	1,672
Acquired Loans \| Home equity lines of credit
Loans
Nonaccrual Loans	312	231
Accruing Loans 90 Days Past Due	22	0
Acquired Loans \| Consumer, indirect
Loans
Nonaccrual Loans	0	0
Accruing Loans 90 Days Past Due	0	13
Acquired Loans \| Consumer, other
Loans
Nonaccrual Loans	0	4
Accruing Loans 90 Days Past Due	0	0
Acquired Loans \| Consumer, other
Loans
Nonaccrual Loans	0	4
Accruing Loans 90 Days Past Due	$ 0	$ 13

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.

+ Details

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

- Definition

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524

+ Details

Name:	us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524

+ Details

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

- Details

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

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_ConstructionLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_CommercialLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_ResidentialMortgageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_HomeEquityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=pebo_ConsumerIndirectLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=pebo_ConsumerOtherLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_ConsumerLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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