v3.26.3
Fair Value Measurement - Additional Information (Detail) - USD ($)
3 Months Ended
9 Months Ended
12 Months Ended
Sep. 30, 2026
Sep. 30, 2026
Dec. 31, 2025
Fair Value Disclosures [Abstract]
Fair value transfer amount
$ 0
$ 0
$ 0
X
- References
No definition available.
+ Details
Name:
us-gaap_FairValueDisclosuresAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
The amount of the transfers between levels of the fair value hierarchy.
+ References
No definition available.
+ Details
Name:
wsbc_FairValueTransfersBetweenLevel
Namespace Prefix:
wsbc_
Data Type:
xbrli:monetaryItemType
Balance Type:
credit
Period Type:
duration