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Regulatory Matters - Summary of Risk-Based Capital Amounts and Ratios (Detail) - USD ($) | Dec. 31, 2022 | Dec. 31, 2021
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Percentage of risk-weighted assets in bank holding companies in Tier 1 | 4.00% |
Tier 1 capital to risk-weighted assets, minimum value | 6.00% |
Total capital to risk-weighted assets, minimum value | 8.00% |
Common equity tier 1, minimum value | 4.50% |
Tier 1 leverage, well capitalized | 5.00% |
Tier 1 capital to risk-weighted assets, well capitalized | 8.00% |
Total capital to risk-weighted assets, well capitalized | 10.00% |
Common equity tier 1, well capitalized | 6.50% |
Tier 1 leverage, amount | $ 1,576,764,000 | $ 1,586,165,000
Tier 1 capital to risk-weighted assets, amount | 1,576,764,000 | 1,586,165,000
Total capital to risk-weighted assets, amount | 1,933,007,000 | 1,795,661,000
Common equity tier 1, amount | $ 1,432,280,000 | $ 1,441,681,000
Tier 1 leverage, ratio | 9.90% | 10.02%
Tier 1 capital to risk-weighted assets, ratio | 12.33% | 14.05%
Total capital to risk-weighted assets, ratio | 15.11% | 15.91%
Common equity tier 1, ratio | 11.20% | 12.77%
Wesbanco Bank, Inc [Member] |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Percentage of risk-weighted assets in bank holding companies in Tier 1 | 4.00% |
Tier 1 capital to risk-weighted assets, minimum value | 6.00% |
Total capital to risk-weighted assets, minimum value | 8.00% |
Common equity tier 1, minimum value | 4.50% |
Tier 1 leverage, well capitalized | 5.00% |
Tier 1 capital to risk-weighted assets, well capitalized | 8.00% |
Total capital to risk-weighted assets, well capitalized | 10.00% |
Common equity tier 1, well capitalized | 6.50% |
Tier 1 leverage, amount | $ 1,558,305,000 | $ 1,529,227,000
Tier 1 capital to risk-weighted assets, amount | 1,558,305,000 | 1,529,227,000
Total capital to risk-weighted assets, amount | 1,634,548,000 | 1,608,723,000
Common equity tier 1, amount | $ 1,558,305,000 | $ 1,529,227,000
Tier 1 leverage, ratio | 9.80% | 9.68%
Tier 1 capital to risk-weighted assets, ratio | 12.22% | 13.60%
Total capital to risk-weighted assets, ratio | 12.81% | 14.31%
Common equity tier 1, ratio | 12.22% | 13.60%
Minimum [Member] |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Tier 1 leverage, amount | $ 636,966,000 | $ 633,089,000
Tier 1 capital to risk-weighted assets, amount | 767,334,000 | 677,190,000
Total capital to risk-weighted assets, amount | 1,023,112,000 | 902,920,000
Common equity tier 1, amount | 575,500,000 | 507,893,000
Minimum [Member] | Wesbanco Bank, Inc [Member] |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Tier 1 leverage, amount | 636,033,000 | 631,920,000
Tier 1 capital to risk-weighted assets, amount | 765,439,000 | 674,622,000
Total capital to risk-weighted assets, amount | 1,020,585,000 | 899,496,000
Common equity tier 1, amount | $ 574,079,000 | $ 505,967,000

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