XML 69 R59.htm IDEA: XBRL DOCUMENT
v3.19.2

Loans and the Allowance for Credit Losses - Loans Identified as TDRs (Detail) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 USD ($) Contract | Jun. 30, 2018 USD ($) Contract | Jun. 30, 2019 USD ($) Contract | Jun. 30, 2018 USD ($) Contract
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Modifications | Contract | 2 | 4 | 9 | 11
Pre-Modification Outstanding Recorded Investment | $ 243 | $ 68 | $ 639 | $ 278
Post-Modification Outstanding Recorded Investment | $ 196 | $ 65 | $ 581 | $ 252
Commercial and Industrial [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Modifications | Contract | 1 | 1 | 1 | 1
Pre-Modification Outstanding Recorded Investment | $ 44 | $ 9 | $ 44 | $ 10
Post-Modification Outstanding Recorded Investment | $ 40 | $ 9 | $ 40 | $ 9
Residential Real Estate [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Modifications | Contract |  |  | 4 | 5
Pre-Modification Outstanding Recorded Investment |  |  | $ 194 | $ 203
Post-Modification Outstanding Recorded Investment |  |  | $ 188 | $ 185
Consumer [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Modifications | Contract |  | 2 | 1 | 4
Pre-Modification Outstanding Recorded Investment |  | $ 39 | $ 15 | $ 45
Post-Modification Outstanding Recorded Investment |  | $ 36 | $ 13 | $ 38
Home Equity [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Modifications | Contract | 1 | 1 | 3 | 1
Pre-Modification Outstanding Recorded Investment | $ 199 | $ 20 | $ 386 | $ 20
Post-Modification Outstanding Recorded Investment | $ 156 | $ 20 | $ 340 | $ 20

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 No definition available. + Details
Name: | us-gaap_FinancingReceivableModificationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsNumberOfContracts2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after troubled debt restructuring, of modified financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, before troubled debt restructuring, of financing receivable to be modified. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=wsbc_CommercialAndIndustrialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_HomeEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |