XML 43 R76.htm IDEA: XBRL DOCUMENT
v3.19.3

Commitments and Contingent Liabilities - Commitments to Extend Credit, Guarantees and Various Letters of Credit Outstanding (Detail) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Commitments And Contingencies Disclosure [Abstract] |  |
Lines of credit | $ 2,013,085 | $ 1,894,030
Loans approved but not closed | 391,885 | 258,778
Overdraft limits | 150,684 | 153,572
Letters of credit | 44,370 | 42,841
Contingent obligations and other guarantees | $ 68,450 | $ 61,509

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

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contingent obligations to purchase loans funded by other entities. + References No definition available. + Details
Name: | wsbc_ContingentObligationsToPurchaseLoansFundedByOtherEntities
Namespace Prefix: | wsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Unused portions of various lines of credit products. + References No definition available. + Details
Name: | wsbc_LinesOfCredit
Namespace Prefix: | wsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Credit offerings by the bank to customer in which the customer has either not completed the closing or accepted the offer. + References No definition available. + Details
Name: | wsbc_LoansApprovedButNotClosed
Namespace Prefix: | wsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Unused portion of available funds under overdraft programs on deposit programs. + References No definition available. + Details
Name: | wsbc_OverdraftLimits
Namespace Prefix: | wsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant