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v3.22.4

Regulatory Matters - Additional Information (Detail) - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Mar. 23, 2022 | Dec. 31, 2022 | Dec. 31, 2021
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Potential maximum dividends without prior regulatory approval |  | $ 116,800 |
Average required reserve balance in Federal Reserve Bank |  | $ 0 | $ 0
Percentage of Risk-weighted assets in bank holding companies in total capital |  | 0.08 |
Common equity tier 1, minimum value |  | 4.50% |
Common equity tier 1, well capitalized |  | 6.50% |
Percentage of Risk-weighted assets in banking subsidiaries |  | 6.00% |
Percentage of well-capitalized levels of Tier 1 risk-based capital |  | 8.00% |
Percentage of well-capitalized levels of total risk-based capital |  | 0.10 |
Provision of the Dodd-Frank |  | $ 15,000,000,000 |
Percentage of common equity tier 1 |  | 7.00% |
Percentage of tier 1 risk based capital |  | 8.50% |
Percentage of total risk-based capital |  | 10.50% |
Junior subordinated debt |  | $ 133,530,000 |
Trust preferred securities included in Tier Two capital |  | 130,000,000.0 |
Assets |  | $ 16,931,905,000 | 16,927,125,000
Current Expected Losses Methodology for Allowances [Member] |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
CECL on regulatory capital adoption delay period |  | 2 years |
CECL on regulatory capital transition period after delay |  | 3 years |
CECL on regulatory capital transition period |  | 5 years |
Minimum [Member] |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Minimum Tier 1 leverage ratio |  | 0.04 |
Assets |  | $ 15,000,000,000 | $ 15,000,000,000
Minimum [Member] | Current Expected Losses Methodology for Allowances [Member] |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Regulatory capital levels required capital benefits to be well capitalized |  | 17.00% |
Maximum [Member] | Current Expected Losses Methodology for Allowances [Member] |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Regulatory capital levels required capital benefits to be well capitalized |  | 24.00% |
Wesbanco Bank, Inc [Member] |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Common equity tier 1, well capitalized |  | 6.50% |
Percentage of well-capitalized levels of Tier 1 leverage capital |  | 0.05 |
Subordinated Debt [Member] |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Debt instrument, aggregate principal amount | $ 150,000,000.0 |  |
Fixed interest rate | 3.75% |  |
Debt Instrument, Description of Variable Rate Basis |  | Three Month Term Secured Overnight Financing Rate ("SOFR") |
Subordinated Debt [Member] | SOFR [Member] |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |
Variable rate based on the three-month SOFR plus | 1.787% |  |

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