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Document and Entity Information
Feb. 28, 2025
Document And Entity Information [Line Items]  
Entity Registrant Name WESBANCO INC
Amendment Flag false
Entity Central Index Key 0000203596
Document Type 8-K
Document Period End Date Feb. 28, 2025
Entity Incorporation State Country Code WV
Entity File Number 001-39442
Entity Tax Identification Number 55-0571723
Entity Address, Address Line One 1 Bank Plaza
Entity Address, City or Town Wheeling
Entity Address, State or Province WV
Entity Address, Postal Zip Code 26003
City Area Code (304)
Local Phone Number 234-9000
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Stock 2.0833 Par Value [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Common Stock $2.0833 Par Value
Trading Symbol WSBC
Security Exchange Name NASDAQ
Common Stock [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Depositary Shares (each representing 1/40th interest in a share of 6.75% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series A)
Trading Symbol WSBCP
Security Exchange Name NASDAQ