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Loans and the Allowance for Credit Losses - Additional Information (Detail) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 USD ($) Loan Contract | Dec. 31, 2021 USD ($) Contract
Financing Receivable, Recorded Investment [Line Items] |  |
Net deferred fee loan income (costs) | $ (9,600) | $ (3,300)
Un-accreted discount on purchased loans from acquisitions | 18,000 | 25,900
Reserve on accrued interest related to CARES Act | 200 |
Accrued interest receivable for loans | 51,800 |
Accrued interest receivable for loans related to CARES Act | 17,000 |
Aggregate amount of residential real estate, home equity and consumer loans classified as substandard | 24,800 | 30,200
Internally assigned loan grades to residential real estate, home equity and consumer loans | 5,900 | 7,400
Unfunded commercial loan commitments | $ 25,000 | $ 21,700
Number of restructured contracts greater than $1 million | Contract | 0 | 0
Threshold for TDR | $ 1,000 | $ 1,000
Accruing and non accrual TDR permitted interest-only payment period | 6 months |
Unfunded commitments to debtors for nonperforming loans | $ 100 | 100
Number of loans modified | Loan | 3,600 |
Total loan amount modified CARES Act | $ 2,200,000 |
Loan amount remaining in deferral period CARES Act | $ 800 |
Description of deferred payments to customers impacted by the COVID-19 pandemic | Wesbanco originally offered three to six months of deferred payments to commercial and retail customers impacted by the COVID-19 pandemic depending on the type of loan and the industry for commercial loans. In the fourth quarter of 2020, Wesbanco offered up to an additional twelve months of deferred payments to certain commercial loan customers, predominantly in the hospitality industry, based on specific criteria related to the borrower, the underlying property and the potential for guarantors / co-borrowers. |
Other real estate owned | $ 1,397 | 0
Residential Real Estate [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Other real estate owned | 0 | 0
Foreclosure proceedings in process on residential real estate loans | 4,900 | 4,000
Foreclosure proceedings temporarily suspended on real estate loans | 0 | 800
SBA Payroll Protection Program [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Net deferred fee loan income (costs) | 200 | $ 6,100
Commercial and Industrial [Member] | Maximum [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Annual sales of borrowers | $ 100,000 |

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