$WSBC
WESBANCO INC Stock $wsbc

$wsbc Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-K Financial Statement

#000156459021009469 Filed on February 26, 2021

Income Statement

Concept	2020 Q4	2019 Q4	2019 Q3
Revenue			$117.3M
YoY Change			8.26%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization
YoY Change
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense			$21.23M
YoY Change			14.99%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$64.56M	$43.42M	$45.68M
YoY Change	48.67%	-20.3%	17.12%
Income Tax	$11.70M	$7.046M	$8.334M
% Of Pretax Income	18.13%	16.23%	18.24%
Net Earnings	$52.85M	$36.38M	$37.35M
YoY Change	45.3%	-17.19%	14.96%
Net Earnings / Revenue			31.83%
Basic Earnings Per Share	$0.75	$0.60	$0.68
Diluted Earnings Per Share	$0.75	$0.60	$0.68
COMMON SHARES
Basic Shares Outstanding			54.70M
Diluted Shares Outstanding			54.75M

Balance Sheet

Concept	2020 Q4	2019 Q4	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$3.628B	$3.492B	$3.318B
YoY Change	3.87%	5.32%	-0.07%
Cash & Equivalents	$905.4M	$234.8M	$244.3M
Short-Term Investments	$2.722B	$3.258B	$3.074B
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$249.4M	$261.0M	$178.3M
YoY Change	-4.44%	56.37%	11.97%
Goodwill	$1.100B	$1.100B
YoY Change	0.0%	22.22%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$16.43B	$15.72B	$12.59B
YoY Change	4.49%	26.18%	-0.04%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$4.000M	$8.000M	$5.000M
YoY Change	-50.0%	60.0%	-28.57%
Accrued Expenses		$57.00M	$21.00M
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$242.0M	$282.0M	$325.0M
YoY Change	-14.18%	-3.09%	10.54%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$4.000M	$65.00M	$26.00M
YoY Change	-93.85%	1200.0%	271.43%
LONG-TERM LIABILITIES
Long-Term Debt	$192.0M	$205.0M	$157.0M
YoY Change	-6.34%	7.89%	-17.37%
Other Long-Term Liabilities	$252.0M	$154.0M	$160.0M
YoY Change	63.64%	41.28%	46.79%
Total Long-Term Liabilities	$444.0M	$359.0M	$317.0M
YoY Change	23.68%	20.07%	6.02%
TOTAL LIABILITIES
Total Short-Term Liabilities	$4.000M	$65.00M	$26.00M
Total Long-Term Liabilities	$444.0M	$359.0M	$317.0M
Total Liabilities	$13.67B	$13.13B	$10.49B
YoY Change	4.13%	25.25%	-1.68%
SHAREHOLDERS EQUITY
Retained Earnings	$831.7M	$824.7M	$809.3M
YoY Change	0.85%	11.81%	14.07%
Common Stock	$1.777B	$1.779B	$1.284B
YoY Change	-0.12%	38.92%	0.37%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$25.95M	$9.463M	$252.0K
YoY Change	174.22%	3353.65%	1580.0%
Treasury Stock Shares	$826.6K	$253.7K	$7.025K
Shareholders Equity	$2.757B	$2.594B	$2.101B
YoY Change
Total Liabilities & Shareholders Equity	$16.43B	$15.72B	$12.59B
YoY Change	4.49%	26.18%	-0.04%

Cashflow Statement

Concept	2020 Q4	2019 Q4	2019 Q3
OPERATING ACTIVITIES
Net Income	$52.85M	$36.38M	$37.35M
YoY Change	45.3%	-17.19%	14.96%
Depreciation, Depletion And Amortization
YoY Change
Cash From Operating Activities	$39.00M	$15.30M	$71.70M
YoY Change	154.9%	-78.02%	28.73%
INVESTING ACTIVITIES
Capital Expenditures	-$1.600M	-$3.900M	-$2.200M
YoY Change	-58.97%	69.57%	37.5%
Acquisitions
YoY Change
Other Investing Activities	$287.5M	$72.10M	-$41.00M
YoY Change	298.75%	109.59%	-115.65%
Cash From Investing Activities	$286.0M	$68.20M	-$43.20M
YoY Change	319.35%	112.46%	-116.59%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-179.7M	-93.00M	21.50M
YoY Change	93.23%	-54.9%	-110.86%
NET CHANGE
Cash From Operating Activities	39.00M	15.30M	71.70M
Cash From Investing Activities	286.0M	68.20M	-43.20M
Cash From Financing Activities	-179.7M	-93.00M	21.50M
Net Change In Cash	145.3M	-9.500M	50.00M
YoY Change	-1629.47%	-90.91%	-57.66%
FREE CASH FLOW
Cash From Operating Activities	$39.00M	$15.30M	$71.70M
Capital Expenditures	-$1.600M	-$3.900M	-$2.200M
Free Cash Flow	$40.60M	$19.20M	$73.90M
YoY Change	111.46%	-73.3%	28.97%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2020	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	7069000
CY2020	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	4616000
CY2019	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	8024000
CY2020	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	70593000
CY2020	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	5007000
CY2020	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	16999000
CY2019	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	85654000
CY2019	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	5433000
CY2018	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	5320000
CY2019	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	484253000
CY2018	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	414957000
CY2018	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	13144000
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1978827000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	158873000
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	197945000
CY2018	us-gaap	Interest Expense Deposits InterestExpenseDeposits	31835000
CY2020	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	1802000
CY2019	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	2995000
CY2019	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	15631000
CY2018	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	1225000
CY2020	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	13562000
CY2018	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	12450000
CY2019	us-gaap	Interest Expense Deposits InterestExpenseDeposits	43455000
CY2018	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	23333000
CY2019	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	8945000
CY2018	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	8836000
CY2018	us-gaap	Interest Expense InterestExpense	67721000
CY2020	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	24701000
CY2018	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	3717000
CY2019	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	26548000
CY2020	dei	City Area Code CityAreaCode	304
CY2020	dei	Local Phone Number LocalPhoneNumber	234-9000
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	WV
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	26003
CY2020Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilities
CY2019Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilities
CY2020Q4	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue
CY2020	wsbc	Calculation Period Of Reversion CalculationPeriodOfReversion	P1Y
CY2019Q4	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue
CY2018	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	us-gaap:AccountingStandardsUpdate201601Member
CY2020	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	us-gaap:AccountingStandardsUpdate201613Member
CY2020Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilities
CY2020	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Upper Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit	45.65
CY2020	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P4Y4M9D
CY2020	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Lower Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit	9.97
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	000-08467
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	55-0571723
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	1 Bank Plaza
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Wheeling
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	WV
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2020	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2020Q2	dei	Entity Public Float EntityPublicFloat	1299795869000
CY2020Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	721086000
CY2019Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	51891000
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	905447000
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	234796000
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	13047000
CY2019Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	12343000
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1978136000
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	2393558000
CY2020Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	768183000
CY2019Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	874523000
CY2020Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	731212000
CY2019Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	851753000
CY2020Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	326000
CY2020Q4	wsbc	Held To Maturity Securities Net HeldToMaturitySecuritiesNet	730886000
CY2019Q4	wsbc	Held To Maturity Securities Net HeldToMaturitySecuritiesNet	851753000
CY2020Q4	us-gaap	Marketable Securities MarketableSecurities	2722069000
CY2019Q4	us-gaap	Marketable Securities MarketableSecurities	3257654000
CY2020Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	168378000
CY2019Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	43013000
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	10789233000
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	150000
CY2019Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	10267985000
CY2019Q4	us-gaap	Assets Assets	15720112000
CY2020Q4	us-gaap	Preferred Stock Liquidation Preference Value PreferredStockLiquidationPreferenceValue	150000000
CY2020Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	4314000
CY2019Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	8077000
CY2020Q4	us-gaap	Other Liabilities OtherLiabilities	251942000
CY2019Q4	us-gaap	Other Liabilities OtherLiabilities	216262000
CY2020Q4	us-gaap	Liabilities Liabilities	13668873000
CY2019Q4	us-gaap	Liabilities Liabilities	13126191000
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	150000
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	185827000
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	52429000
CY2020Q4	us-gaap	Notes Receivable Net NotesReceivableNet	10603406000
CY2019Q4	us-gaap	Notes Receivable Net NotesReceivableNet	10215556000
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	249421000
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	261014000
CY2020Q4	us-gaap	Interest Receivable InterestReceivable	66790000
CY2019Q4	us-gaap	Interest Receivable InterestReceivable	43648000
CY2020Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	1163091000
CY2019Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	1149153000
CY2020Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	306038000
CY2019Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	299516000
CY2020Q4	us-gaap	Other Assets OtherAssets	240970000
CY2019Q4	us-gaap	Other Assets OtherAssets	215762000
CY2020Q4	us-gaap	Assets Assets	16425610000
CY2020Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	4070835000
CY2019Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	3178270000
CY2020Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	2839536000
CY2019Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	2316855000
CY2020Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	1685927000
CY2019Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	1518314000
CY2020Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	2214565000
CY2019Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	1934647000
CY2020Q4	us-gaap	Time Deposits TimeDeposits	1618510000
CY2019Q4	us-gaap	Time Deposits TimeDeposits	2055920000
CY2020Q4	us-gaap	Deposits Deposits	12429373000
CY2019Q4	us-gaap	Deposits Deposits	11004006000
CY2020Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	549003000
CY2019Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	1415615000
CY2020Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	241950000
CY2019Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	282362000
CY2020Q4	wsbc	Subordinated Debt And Junior Subordinated Debt SubordinatedDebtAndJuniorSubordinatedDebt	192291000
CY2019Q4	wsbc	Subordinated Debt And Junior Subordinated Debt SubordinatedDebtAndJuniorSubordinatedDebt	199869000
CY2020Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	983244000
CY2019Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	1897846000
CY2019Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2019Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	144484000
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	2.0833
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	68078116
CY2018	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	6427000
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	31359000
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	67824428
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	141834000
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	141827000
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1634815000
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1636966000
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	831688000
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	824694000
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	253688
CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	25949000
CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	9463000
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	1201000
CY2020Q4	wsbc	Deferred Benefits For Directors DeferredBenefitsForDirectors	1494000
CY2019Q4	wsbc	Deferred Benefits For Directors DeferredBenefitsForDirectors	1304000
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	2756737000
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	2593921000
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	16425610000
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	15720112000
CY2020	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	541277000
CY2019	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	16805000
CY2018	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	5016000
CY2020	us-gaap	Interest Expense Deposits InterestExpenseDeposits	27049000
CY2020	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	1729000
CY2019	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	5401000
CY2020	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	8318000
CY2020	us-gaap	Interest Expense InterestExpense	61797000
CY2019	us-gaap	Interest Expense InterestExpense	84349000
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	479480000
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	399904000
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	347236000
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	107741000
CY2019	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	11198000
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	7764000
CY2020	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	371739000
CY2019	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	388706000
CY2018	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	339472000
CY2020	wsbc	Electronic Banking Fees ElectronicBankingFees	17524000
CY2019	wsbc	Electronic Banking Fees ElectronicBankingFees	22634000
CY2018	wsbc	Electronic Banking Fees ElectronicBankingFees	23300000
CY2020	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	6189000
CY2019	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	6990000
CY2018	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	7186000
CY2020	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	7359000
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	5913000
CY2020	wsbc	Non Interest Income Derived From Mortgage Banking Activities NonInterestIncomeDerivedFromMortgageBankingActivities	22736000
CY2019	wsbc	Non Interest Income Derived From Mortgage Banking Activities NonInterestIncomeDerivedFromMortgageBankingActivities	8219000
CY2018	wsbc	Non Interest Income Derived From Mortgage Banking Activities NonInterestIncomeDerivedFromMortgageBankingActivities	5840000
CY2020	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	4268000
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	4320000
CY2018	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-900000
CY2020	wsbc	Net Gain Loss On Other Real Estate Owned And Other Assets NetGainLossOnOtherRealEstateOwnedAndOtherAssets	103000
CY2019	wsbc	Net Gain Loss On Other Real Estate Owned And Other Assets NetGainLossOnOtherRealEstateOwnedAndOtherAssets	732000
CY2018	wsbc	Net Gain Loss On Other Real Estate Owned And Other Assets NetGainLossOnOtherRealEstateOwnedAndOtherAssets	524000
CY2020	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	21728000
CY2019	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	14355000
CY2018	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	9606000
CY2020	us-gaap	Noninterest Income NoninterestIncome	128185000
CY2020	us-gaap	Noninterest Expense NoninterestExpense	354845000
CY2019	us-gaap	Noninterest Income NoninterestIncome	116716000
CY2018	us-gaap	Noninterest Income NoninterestIncome	100276000
CY2020	wsbc	Salaries And Officer Compensation SalariesAndOfficerCompensation	153166000
CY2019	wsbc	Salaries And Officer Compensation SalariesAndOfficerCompensation	132485000
CY2018	wsbc	Salaries And Officer Compensation SalariesAndOfficerCompensation	114602000
CY2020	wsbc	Employee Benefits EmployeeBenefits	41723000
CY2019	wsbc	Employee Benefits EmployeeBenefits	39313000
CY2018	wsbc	Employee Benefits EmployeeBenefits	30079000
CY2020	us-gaap	Occupancy Net OccupancyNet	27580000
CY2019	us-gaap	Occupancy Net OccupancyNet	22505000
CY2018	us-gaap	Occupancy Net OccupancyNet	19165000
CY2020	us-gaap	Equipment Expense EquipmentExpense	24801000
CY2019	us-gaap	Equipment Expense EquipmentExpense	20494000
CY2018	us-gaap	Equipment Expense EquipmentExpense	17207000
CY2020	us-gaap	Marketing Expense MarketingExpense	5957000
CY2019	us-gaap	Marketing Expense MarketingExpense	6062000
CY2018	us-gaap	Marketing Expense MarketingExpense	5368000
CY2020	wsbc	Federal Deposit Insurance Corporation Premium Expense Income FederalDepositInsuranceCorporationPremiumExpenseIncome	7734000
CY2019	wsbc	Federal Deposit Insurance Corporation Premium Expense Income FederalDepositInsuranceCorporationPremiumExpenseIncome	1956000
CY2018	wsbc	Federal Deposit Insurance Corporation Premium Expense Income FederalDepositInsuranceCorporationPremiumExpenseIncome	3242000
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	13411000
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	10340000
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6980000
CY2020	wsbc	Restructuring And Merger Related Charges RestructuringAndMergerRelatedCharges	9725000
CY2019	wsbc	Restructuring And Merger Related Charges RestructuringAndMergerRelatedCharges	16397000
CY2018	wsbc	Restructuring And Merger Related Charges RestructuringAndMergerRelatedCharges	17860000
CY2020	us-gaap	Other Noninterest Expense OtherNoninterestExpense	70748000
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	62656000
CY2018	us-gaap	Other Noninterest Expense OtherNoninterestExpense	50721000
CY2019	us-gaap	Noninterest Expense NoninterestExpense	312208000
CY2018	us-gaap	Noninterest Expense NoninterestExpense	265224000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	145079000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	193214000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	174524000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	23035000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34341000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	31412000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	122044000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	158873000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	143112000
CY2020	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	2644000
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	119400000
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	158873000
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	143112000
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.78
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.83
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.93
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.77
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.83
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.92
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	67260796
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	56108084
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	48889041
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	67310584
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	56214364
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49022990
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.28
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.24
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.16
CY2020	us-gaap	Net Income Loss NetIncomeLoss	122044000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	158873000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	143112000
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	39880000
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	52299000
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-9228000
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	9727000
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	11958000
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-2008000
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	2540000
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	227000
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-15000
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	604000
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	52000
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-4000
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	28217000
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	40166000
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-7209000
CY2020	wsbc	Other Comprehensive Income Amortization Of Unrealized Holding Gain Loss Previously Recognized In Other Comprehensive Income Before Tax OtherComprehensiveIncomeAmortizationOfUnrealizedHoldingGainLossPreviouslyRecognizedInOtherComprehensiveIncomeBeforeTax	32000
CY2019	wsbc	Other Comprehensive Income Amortization Of Unrealized Holding Gain Loss Previously Recognized In Other Comprehensive Income Before Tax OtherComprehensiveIncomeAmortizationOfUnrealizedHoldingGainLossPreviouslyRecognizedInOtherComprehensiveIncomeBeforeTax	222000
CY2018	wsbc	Other Comprehensive Income Amortization Of Unrealized Holding Gain Loss Previously Recognized In Other Comprehensive Income Before Tax OtherComprehensiveIncomeAmortizationOfUnrealizedHoldingGainLossPreviouslyRecognizedInOtherComprehensiveIncomeBeforeTax	244000
CY2020	wsbc	Other Comprehensive Income Amortization Of Unrealized Holding Gain Loss Previously Recognized In Other Comprehensive Income Tax OtherComprehensiveIncomeAmortizationOfUnrealizedHoldingGainLossPreviouslyRecognizedInOtherComprehensiveIncomeTax	7000
CY2019	wsbc	Other Comprehensive Income Amortization Of Unrealized Holding Gain Loss Previously Recognized In Other Comprehensive Income Tax OtherComprehensiveIncomeAmortizationOfUnrealizedHoldingGainLossPreviouslyRecognizedInOtherComprehensiveIncomeTax	54000
CY2018	wsbc	Other Comprehensive Income Amortization Of Unrealized Holding Gain Loss Previously Recognized In Other Comprehensive Income Tax OtherComprehensiveIncomeAmortizationOfUnrealizedHoldingGainLossPreviouslyRecognizedInOtherComprehensiveIncomeTax	56000
CY2020	wsbc	Other Comprehensive Income Loss Held To Maturity Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossHeldToMaturitySecuritiesAdjustmentNetOfTax	-25000
CY2019	wsbc	Other Comprehensive Income Loss Held To Maturity Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossHeldToMaturitySecuritiesAdjustmentNetOfTax	-168000
CY2018	wsbc	Other Comprehensive Income Loss Held To Maturity Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossHeldToMaturitySecuritiesAdjustmentNetOfTax	-188000
CY2020	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	3000000
CY2019	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	3042000
CY2018	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	2948000
CY2020	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	714000
CY2019	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	729000
CY2018	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	822000
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-420000
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-4250000
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-54000
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	100000
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	1011000
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	12000
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-1966000
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	926000
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-2084000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	30158000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	39072000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-5313000
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	152202000
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	1395321000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	143112000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-5313000
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	137799000
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.16
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	57951000
CY2018	wsbc	Treasury Stock Value Acquired Cost Method Adjustments TreasuryStockValueAcquiredCostMethodAdjustments	697000
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1849000
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4361000
CY2018	wsbc	Deferred Benefits For Directors Net DeferredBenefitsForDirectorsNet	469000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	39072000
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.24
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	71760000
CY2019	wsbc	Treasury Stock Value Acquired Cost Method Adjustments TreasuryStockValueAcquiredCostMethodAdjustments	10298000
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	159000
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5321000
CY2019	wsbc	Deferred Benefits For Directors Net DeferredBenefitsForDirectorsNet	208000
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	2593921000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	122044000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	30158000
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	152202000
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.28
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	85815000
CY2020	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	17.625
CY2020	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	2644000
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	144484000
CY2020	wsbc	Treasury Stock Value Acquired Cost Method Adjustments TreasuryStockValueAcquiredCostMethodAdjustments	25296000
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	976000
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5653000
CY2020	wsbc	Deferred Benefits For Directors Net DeferredBenefitsForDirectorsNet	153000
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	2756737000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	122044000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	158873000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	143112000
CY2020	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	14131000
CY2019	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	11567000
CY2018	us-gaap	Pension Contributions PensionContributions	2700000
CY2020	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	910155000
CY2019	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	328319000
CY2020	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	786352000
CY2018	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	10451000
CY2020	wsbc	Other Depreciation Amortization And Accretion Net OtherDepreciationAmortizationAndAccretionNet	-9890000
CY2019	wsbc	Other Depreciation Amortization And Accretion Net OtherDepreciationAmortizationAndAccretionNet	996000
CY2018	wsbc	Other Depreciation Amortization And Accretion Net OtherDepreciationAmortizationAndAccretionNet	3932000
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	107741000
CY2019	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	11198000
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	7764000
CY2020	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	4268000
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	4320000
CY2018	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-900000
CY2020	wsbc	Non Interest Income Derived From Mortgage Banking Activities NonInterestIncomeDerivedFromMortgageBankingActivities	22736000
CY2019	wsbc	Non Interest Income Derived From Mortgage Banking Activities NonInterestIncomeDerivedFromMortgageBankingActivities	8219000
CY2018	wsbc	Non Interest Income Derived From Mortgage Banking Activities NonInterestIncomeDerivedFromMortgageBankingActivities	5840000
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	5653000
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	5321000
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	4361000
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-10518000
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	8466000
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	7163000
CY2020	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	7359000
CY2019	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	5913000
CY2018	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	6427000
CY2019	us-gaap	Pension Contributions PensionContributions	3000000
CY2018	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	215540000
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	78938000
CY2019	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	308856000
CY2018	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	227100000
CY2020	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-344000
CY2019	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	104000
CY2018	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	700000
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	30280000
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	33400000
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-19895000
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	16189000
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	41500000
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-1347000
CY2020	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	2358000
CY2019	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-139000
CY2018	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-233000
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	59606000
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	163363000
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	191891000
CY2020	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	538688000
CY2019	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	61804000
CY2018	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-121504000
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	226099000
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	125839000
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	82134000
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	803006000
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	438259000
CY2020	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	585930000
CY2019	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	41516000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	234796000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	169186000
CY2018	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	89933000
CY2020	wsbc	Proceeds From Sale Of Equity Securities ProceedsFromSaleOfEquitySecurities	203000
CY2019	wsbc	Proceeds From Sale Of Equity Securities ProceedsFromSaleOfEquitySecurities	4090000
CY2018	wsbc	Proceeds From Sale Of Equity Securities ProceedsFromSaleOfEquitySecurities	1511000
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-60025000
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-278654000
CY2020	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	832000
CY2019	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1156000
CY2018	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	4772000
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	7551000
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	12201000
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	4669000
CY2020	wsbc	Proceeds From Sale Of Portfolio Loans ProceedsFromSaleOfPortfolioLoans	42416000
CY2018	wsbc	Proceeds From Sale Of Portfolio Loans ProceedsFromSaleOfPortfolioLoans	48990000
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	57792000
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	103786000
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-51859000
CY2020	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1435497000
CY2019	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-199771000
CY2018	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-129878000
CY2020	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	475000000
CY2019	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	1035000000
CY2018	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	640000000
CY2020	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	1341814000
CY2019	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	888862000
CY2018	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	589546000
CY2020	us-gaap	Proceeds From Other Short Term Debt ProceedsFromOtherShortTermDebt	-32912000
CY2019	us-gaap	Proceeds From Other Short Term Debt ProceedsFromOtherShortTermDebt	-44788000
CY2018	us-gaap	Proceeds From Other Short Term Debt ProceedsFromOtherShortTermDebt	86284000
CY2020	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	422000
CY2019	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	402000
CY2018	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	334000
CY2020	us-gaap	Increase Decrease In Federal Funds Purchased IncreaseDecreaseInFederalFundsPurchased	7500000
CY2019	us-gaap	Increase Decrease In Federal Funds Purchased IncreaseDecreaseInFederalFundsPurchased	-7500000
CY2018	us-gaap	Increase Decrease In Federal Funds Purchased IncreaseDecreaseInFederalFundsPurchased	25000000
CY2020	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	6702000
CY2019	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	33506000
CY2018	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	17519000
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	85253000
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	66571000
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	53577000
CY2020	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	2644000
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	59000
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	72000
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1578000
CY2020	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	144484000
CY2020	wsbc	Proceeds From Repurchase Of Treasury Stock ProceedsFromRepurchaseOfTreasuryStock	-24540000
CY2019	wsbc	Proceeds From Repurchase Of Treasury Stock ProceedsFromRepurchaseOfTreasuryStock	-10211000
CY2018	wsbc	Proceeds From Repurchase Of Treasury Stock ProceedsFromRepurchaseOfTreasuryStock	-426000
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	553253000
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-201539000
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-88418000
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	670651000
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	65610000
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	51614000
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	117572000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	905447000
CY2018	us-gaap	Interest Paid Net InterestPaidNet	68618000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	234796000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	169186000
CY2020	us-gaap	Interest Paid Net InterestPaidNet	75082000
CY2019	us-gaap	Interest Paid Net InterestPaidNet	87145000
CY2020	wsbc	Number Of Wholly Owned Trust Subsidiaries NumberOfWhollyOwnedTrustSubsidiaries	11
CY2019	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	1015000
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	36975000
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	31375000
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	18700000
CY2020	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	263000
CY2018	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	1275000
CY2020	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	42416000
CY2018	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	48990000
CY2019	wsbc	Non Cash Transaction Related To Acquisition NonCashTransactionRelatedToAcquisition	493935000
CY2018	wsbc	Non Cash Transaction Related To Acquisition NonCashTransactionRelatedToAcquisition	498614000
CY2019	us-gaap	Debt Securities Held To Maturity Transfer Amount DebtSecuritiesHeldToMaturityTransferAmount	67393000
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	19827000
CY2020Q4	wsbc	Number Of Branches NumberOfBranches	233
CY2020	wsbc	Number Of Automated Teller Machines NumberOfAutomatedTellerMachines	226
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<p style="text-align:justify;margin-bottom:0pt;margin-top:12pt;text-indent:4.24%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Use of Estimates—<span style="font-weight:normal;"> The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.</span></p>
CY2020	wsbc	Held To Maturity Securities To Be Sold Percentage Of Purchase Price HeldToMaturitySecuritiesToBeSoldPercentageOfPurchasePrice	0.15
CY2020	wsbc	Nonaccrual Receivables Period NonaccrualReceivablesPeriod	P90D
CY2020	wsbc	Loans Returned To Accrual Status Performance Period LoansReturnedToAccrualStatusPerformancePeriod	P6M
CY2020	wsbc	Consumer Loan Tdr Extended Maturity Period ConsumerLoanTDRExtendedMaturityPeriod	P6M
CY2020Q4	wsbc	Number Of Categories Of Loan Portfolio NumberOfCategoriesOfLoanPortfolio	3
CY2020Q4	wsbc	Minimum Loan Balance Individually Tested For Impairment MinimumLoanBalanceIndividuallyTestedForImpairment	1000000
CY2019Q4	wsbc	Minimum Loan Balance Individually Tested For Impairment MinimumLoanBalanceIndividuallyTestedForImpairment	1000000
CY2020Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	0
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis	367366000
CY2020	wsbc	Period Of Interest Rate Lock Commitments PeriodOfInterestRateLockCommitments	P60D
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	119400000
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	158873000
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	143112000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	67260796
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	56108084
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	48889041
CY2020	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	49788
CY2019	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	106280
CY2018	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	133949
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	67310584
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	56214364
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49022990
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.78
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.83
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.93
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.77
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.83
CY2019Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	12300000
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis	52867000
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Fair Value AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	52943000
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1759000
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1978136000
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	2369416000
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	30863000
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.92
CY2018	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	42864
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1916658000
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	63237000
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	6721000
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	2393558000
CY2020Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	731212000
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	37030000
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	59000
CY2019Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	851753000
CY2019Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	23405000
CY2019Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	635000
CY2019Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	874523000
CY2020Q4	wsbc	Securities Amortized Cost SecuritiesAmortizedCost	2647870000
CY2020Q4	us-gaap	Investment Owned Unrecognized Unrealized Appreciation InvestmentOwnedUnrecognizedUnrealizedAppreciation	100267000
CY2020Q4	us-gaap	Investment Owned Unrecognized Unrealized Depreciation InvestmentOwnedUnrecognizedUnrealizedDepreciation	1818000
CY2020Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	2746319000
CY2019Q4	wsbc	Securities Amortized Cost SecuritiesAmortizedCost	3221169000
CY2019Q4	us-gaap	Investment Owned Unrecognized Unrealized Appreciation InvestmentOwnedUnrecognizedUnrealizedAppreciation	54268000
CY2019Q4	us-gaap	Investment Owned Unrecognized Unrealized Depreciation InvestmentOwnedUnrecognizedUnrealizedDepreciation	7356000
CY2019Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	3268081000
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis	159663000
CY2020Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	300000
CY2020Q4	wsbc	Number Of Holdings Greater Than Specified Percentage Of Equity NumberOfHoldingsGreaterThanSpecifiedPercentageOfEquity	0
CY2019Q4	wsbc	Number Of Holdings Greater Than Specified Percentage Of Equity NumberOfHoldingsGreaterThanSpecifiedPercentageOfEquity	0
CY2020Q4	wsbc	Maximum Percentage Of Equity Of One Issuer MaximumPercentageOfEquityOfOneIssuer	0.10
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	13000000.0
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	167823000
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	380117000
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis	1336762000
CY2020Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue	1377253000
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1916658000
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1978136000
CY2020Q4	us-gaap	Heldtomaturity Securities Debt Maturities Next Rolling Twelve Months Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCost	8051000
CY2020Q4	us-gaap	Held To Maturity Securities Debt Maturities Next Rolling Twelve Months Fair Value HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	8110000
CY2020Q4	us-gaap	Heldtomaturity Securities Debt Maturities Rolling Year Two Through Five Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCost	116033000
CY2020Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Two Through Five Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	122589000
CY2020Q4	us-gaap	Heldtomaturity Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCost	235993000
CY2020Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Six Through Ten Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	248079000
CY2020Q4	us-gaap	Heldtomaturity Securities Debt Maturities Rolling After Ten Years Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingAfterTenYearsAmortizedCost	371135000
CY2020Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue	389405000
CY2020Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	731212000
CY2020Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	768183000
CY2020Q4	wsbc	Debt Securities Available For Sale And Held To Maturity Amortized Cost DebtSecuritiesAvailableForSaleAndHeldToMaturityAmortizedCost	2647870000
CY2020Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	2746319000
CY2020Q4	us-gaap	Pledged Assets Not Separately Reported Other Financial Instruments PledgedAssetsNotSeparatelyReportedOtherFinancialInstruments	1800000000
CY2019Q4	us-gaap	Pledged Assets Not Separately Reported Other Financial Instruments PledgedAssetsNotSeparatelyReportedOtherFinancialInstruments	2000000000.0
CY2018Q4	us-gaap	Pledged Assets Not Separately Reported Other Financial Instruments PledgedAssetsNotSeparatelyReportedOtherFinancialInstruments	2000000000.0
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	226100000
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	125800000
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	82100000
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	46900000
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	20700000
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-21500000
CY2020	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	4268000
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	4320000
CY2018	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-900000
CY2020Q4	wsbc	Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	340022000
CY2020Q4	wsbc	Securities Continuous Unrealized Loss Position Less Than Twelve Months Aggregate Losses Accumulated In Investments SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLossesAccumulatedInInvestments	1638000
CY2020Q4	wsbc	Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year SecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear	53
CY2020Q4	wsbc	Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	4136000
CY2020Q4	wsbc	Securities Continuous Unrealized Loss Position Twelve Months Or Longer Aggregate Losses Accumulated In Investments SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLossesAccumulatedInInvestments	121000
CY2020Q4	wsbc	Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year SecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear	3
CY2020Q4	wsbc	Securities Continuous Unrealized Loss Position Fair Value SecuritiesContinuousUnrealizedLossPositionFairValue	344158000
CY2020Q4	wsbc	Securities Continuous Unrealized Loss Position Aggregate Losses Accumulated In Investments SecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInInvestments	1759000
CY2020Q4	wsbc	Investment Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions InvestmentSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	56
CY2020Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	34000000.0
CY2019Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	66800000
CY2019Q4	wsbc	Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	668960000
CY2019Q4	wsbc	Securities Continuous Unrealized Loss Position Less Than Twelve Months Aggregate Losses Accumulated In Investments SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLossesAccumulatedInInvestments	4290000
CY2019Q4	wsbc	Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year SecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear	172
CY2019Q4	wsbc	Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	292520000
CY2019Q4	wsbc	Securities Continuous Unrealized Loss Position Twelve Months Or Longer Aggregate Losses Accumulated In Investments SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLossesAccumulatedInInvestments	3066000
CY2019Q4	wsbc	Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year SecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear	136
CY2019Q4	wsbc	Securities Continuous Unrealized Loss Position Fair Value SecuritiesContinuousUnrealizedLossPositionFairValue	961480000
CY2019Q4	wsbc	Securities Continuous Unrealized Loss Position Aggregate Losses Accumulated In Investments SecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInInvestments	7356000
CY2019Q4	wsbc	Investment Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions InvestmentSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	308
CY2020Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	168378000
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	48948000
CY2018Q4	wsbc	Financing Receivable Allowance For Credit Losses Loan Commitments FinancingReceivableAllowanceForCreditLossesLoanCommitments	741000
CY2019Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	43013000
CY2020Q4	wsbc	Financing Receivable Including Loans Held For Sale FinancingReceivableIncludingLoansHeldForSale	10957611000
CY2019Q4	wsbc	Financing Receivable Including Loans Held For Sale FinancingReceivableIncludingLoansHeldForSale	10310998000
CY2020Q4	wsbc	Percentage Of National Unemployment Projection PercentageOfNationalUnemploymentProjection	0.066
CY2020Q4	wsbc	Expected Average Percentage Of National Unemployment In Future ExpectedAveragePercentageOfNationalUnemploymentInFuture	0.062
CY2020Q4	wsbc	Reserve On Accrued Interest Cares Act ReserveOnAccruedInterestCARESAct	300000
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	10789233000
CY2019Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	10267985000
CY2020Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	6200000
CY2019Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	-4800000
CY2020Q4	wsbc	Unaccreted Discount On Loans Purchased UnaccretedDiscountOnLoansPurchased	39400000
CY2019Q4	wsbc	Unaccreted Discount On Loans Purchased UnaccretedDiscountOnLoansPurchased	51900000
CY2020Q4	us-gaap	Loans And Leases Receivable Impaired Nonperforming Accrual Of Interest LoansAndLeasesReceivableImpairedNonperformingAccrualOfInterest	54700000
CY2020Q4	wsbc	Loans And Leases Receivable Impaired Nonperforming Accrual Of Interest Cares Act LoansAndLeasesReceivableImpairedNonperformingAccrualOfInterestCARESAct	25600000
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	52429000
CY2019Q4	wsbc	Financing Receivable Allowance For Credit Losses Loan Commitments FinancingReceivableAllowanceForCreditLossesLoanCommitments	874000
CY2019Q4	wsbc	Financing Receivable Allowance For Credit Losses Loans And Loan Commitments FinancingReceivableAllowanceForCreditLossesLoansAndLoanCommitments	53303000
CY2020	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	101960000
CY2020	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	5685000
CY2020	wsbc	Provision For Credit Losses ProvisionForCreditLosses	107645000
CY2019Q4	wsbc	Financing Receivable Allowance For Credit Losses Loan Commitments FinancingReceivableAllowanceForCreditLossesLoanCommitments	874000
CY2019Q4	wsbc	Financing Receivable Allowance For Credit Losses Loans And Loan Commitments FinancingReceivableAllowanceForCreditLossesLoansAndLoanCommitments	53303000
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	45284000
CY2019	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	11065000
CY2019	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	133000
CY2019	wsbc	Provision For Credit Losses ProvisionForCreditLosses	11198000
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	12657000
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	5073000
CY2018Q4	wsbc	Financing Receivable Allowance For Credit Losses Loans And Loan Commitments FinancingReceivableAllowanceForCreditLossesLoansAndLoanCommitments	49689000
CY2019	wsbc	Financing Receivable Allowance For Credit Loss Write Offs Recoveries Net FinancingReceivableAllowanceForCreditLossWriteOffsRecoveriesNet	7584000
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	52429000
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	12535000
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	5486000
CY2020	wsbc	Financing Receivable Allowance For Credit Loss Write Offs Recoveries Net FinancingReceivableAllowanceForCreditLossWriteOffsRecoveriesNet	7049000
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	185827000
CY2020Q4	wsbc	Financing Receivable Allowance For Credit Losses Loan Commitments FinancingReceivableAllowanceForCreditLossesLoanCommitments	9514000
CY2020Q4	wsbc	Financing Receivable Allowance For Credit Losses Loans And Loan Commitments FinancingReceivableAllowanceForCreditLossesLoansAndLoanCommitments	195341000
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	48948000
CY2018Q4	wsbc	Financing Receivable Allowance For Credit Losses Loan Commitments FinancingReceivableAllowanceForCreditLossesLoanCommitments	741000
CY2018Q4	wsbc	Financing Receivable Allowance For Credit Losses Loans And Loan Commitments FinancingReceivableAllowanceForCreditLossesLoansAndLoanCommitments	49689000
CY2017Q4	wsbc	Financing Receivable Allowance For Credit Losses Loan Commitments FinancingReceivableAllowanceForCreditLossesLoanCommitments	574000
CY2017Q4	wsbc	Financing Receivable Allowance For Credit Losses Loans And Loan Commitments FinancingReceivableAllowanceForCreditLossesLoansAndLoanCommitments	45858000
CY2018	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	7597000
CY2018	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	167000
CY2018	wsbc	Provision For Credit Losses ProvisionForCreditLosses	7764000
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	10567000
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	6634000
CY2018	wsbc	Financing Receivable Allowance For Credit Loss Write Offs Recoveries Net FinancingReceivableAllowanceForCreditLossWriteOffsRecoveriesNet	3933000
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	6282000
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	179545000
CY2020Q4	wsbc	Financing Receivable Allowance For Credit Losses Loan Commitments FinancingReceivableAllowanceForCreditLossesLoanCommitments	9514000
CY2020	wsbc	Threshold For Individually Evaluating Commercial Loans For Impairment ThresholdForIndividuallyEvaluatingCommercialLoansForImpairment	1000000
CY2019	wsbc	Threshold For Individually Evaluating Commercial Loans For Impairment ThresholdForIndividuallyEvaluatingCommercialLoansForImpairment	1000000
CY2020Q4	wsbc	Residential Real Estate Home Equity And Consumer Loans Classified As Substandard ResidentialRealEstateHomeEquityAndConsumerLoansClassifiedAsSubstandard	27700000
CY2019Q4	wsbc	Residential Real Estate Home Equity And Consumer Loans Classified As Substandard ResidentialRealEstateHomeEquityAndConsumerLoansClassifiedAsSubstandard	28300000
CY2020Q4	wsbc	Residential Real Estate Home Equity And Consumer Loans Classified As Substandard And Accruing ResidentialRealEstateHomeEquityAndConsumerLoansClassifiedAsSubstandardAndAccruing	4100000
CY2019Q4	wsbc	Residential Real Estate Home Equity And Consumer Loans Classified As Substandard And Accruing ResidentialRealEstateHomeEquityAndConsumerLoansClassifiedAsSubstandardAndAccruing	5100000
CY2020Q4	wsbc	Unfunded Commercial Loan Commitments UnfundedCommercialLoanCommitments	28700000
CY2020Q4	wsbc	Financing Receivable Allowance For Credit Losses Loans And Loan Commitments FinancingReceivableAllowanceForCreditLossesLoansAndLoanCommitments	195341000
CY2020Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	44690000
CY2020Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	10744543000
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	10789233000
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	124000
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	52305000
CY2019Q4	wsbc	Financing Receivable Allowance For Credit Losses Loan Commitments FinancingReceivableAllowanceForCreditLossesLoanCommitments	874000
CY2019Q4	wsbc	Financing Receivable Allowance For Credit Losses Loans And Loan Commitments FinancingReceivableAllowanceForCreditLossesLoansAndLoanCommitments	53303000
CY2019Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	21017000
CY2019Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	10232455000
CY2019Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	14513000
CY2019Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	10267985000
CY2019Q4	wsbc	Unfunded Commercial Loan Commitments UnfundedCommercialLoanCommitments	15600000
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	10721084000
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	68149000
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	10789233000
CY2020Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	8846000
CY2020Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	168378000
CY2020Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	168378000
CY2020Q4	wsbc	Loans Receivable Net Current LoansReceivableNetCurrent	10889462000
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	68149000
CY2020Q4	wsbc	Financing Receivable Including Loans Held For Sale FinancingReceivableIncludingLoansHeldForSale	10957611000
CY2020Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	8846000
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	10195872000
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	72113000
CY2019Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	10267985000
CY2019Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	11613000
CY2019Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	43013000
CY2019Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	43013000
CY2019Q4	wsbc	Loans Receivable Net Current LoansReceivableNetCurrent	10238885000
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	72113000
CY2019Q4	wsbc	Financing Receivable Including Loans Held For Sale FinancingReceivableIncludingLoansHeldForSale	10310998000
CY2019Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	11613000
CY2020	wsbc	Loans Past Due And Accruing Interest Excluding Tdrs LoansPastDueAndAccruingInterestExcludingTDRS	P90D
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	36880000
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	44913000
CY2020Q4	wsbc	Nonaccrual Loans Outstanding Greater Than One Million Dollars Per Borrower Number Of Borrowers NonaccrualLoansOutstandingGreaterThanOneMillionDollarsPerBorrowerNumberOfBorrowers	1
CY2020Q4	wsbc	Large Amount Of Nonaccrual Loans Outstanding Minimum Loan Amount Per Borrower LargeAmountOfNonaccrualLoansOutstandingMinimumLoanAmountPerBorrower	1000000.0
CY2020Q4	wsbc	Large Amount Of Nonaccrual Loans Outstanding Net Loan Amount Of All Borrowers LargeAmountOfNonaccrualLoansOutstandingNetLoanAmountOfAllBorrowers	2100000
CY2019Q4	wsbc	Disclosure Threshold For Restructured Contracts DisclosureThresholdForRestructuredContracts	1000000.0
CY2020Q4	wsbc	Disclosure Threshold For Restructured Contracts DisclosureThresholdForRestructuredContracts	1000000.0
CY2020	wsbc	Extensions Of Maturity Combined With Interest Only For Period Of Less Than Year ExtensionsOfMaturityCombinedWithInterestOnlyForPeriodOfLessThanYear	P6M
CY2020Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	900000
CY2019Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	3300000
CY2020	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	8
CY2019Q4	wsbc	Nonaccrual Loans Outstanding Greater Than One Million Dollars Per Borrower Number Of Borrowers NonaccrualLoansOutstandingGreaterThanOneMillionDollarsPerBorrowerNumberOfBorrowers	2
CY2019Q4	wsbc	Large Amount Of Nonaccrual Loans Outstanding Minimum Loan Amount Per Borrower LargeAmountOfNonaccrualLoansOutstandingMinimumLoanAmountPerBorrower	1000000.0
CY2019Q4	wsbc	Large Amount Of Nonaccrual Loans Outstanding Net Loan Amount Of All Borrowers LargeAmountOfNonaccrualLoansOutstandingNetLoanAmountOfAllBorrowers	14200000
CY2020Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	5755000
CY2019Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	6853000
CY2019	wsbc	Number Of Restructured Contracts Greater Than One Million NumberOfRestructuredContractsGreaterThanOneMillion	0
CY2020	wsbc	Number Of Restructured Contracts Greater Than One Million NumberOfRestructuredContractsGreaterThanOneMillion	0
CY2020	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	460000
CY2020	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	443000
CY2019	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	11
CY2019	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	1093000
CY2019	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1037000
CY2020	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	1
CY2020	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	155000
CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	3
CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	204000
CY2020	wsbc	Number Of Loans Modified Under Cares Act NumberOfLoansModifiedUnderCaresAct	3553
CY2020	wsbc	Loans And Leases Receivable Loan Amount Modified Cares Act LoansAndLeasesReceivableLoanAmountModifiedCARESAct	2200000000
CY2020Q4	wsbc	Loans And Leases Receivable Deferral Loan Amount Modified Cares Act LoansAndLeasesReceivableDeferralLoanAmountModifiedCARESAct	200000000
CY2020	wsbc	Loans And Leases Receivable Description Of Deferred Payments To Customers Impacted By Covid19 Pandemic LoansAndLeasesReceivableDescriptionOfDeferredPaymentsToCustomersImpactedByCOVID19Pandemic	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, 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.
CY2020Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	504000
CY2019Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	4062000
CY2019Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	116000
CY2020Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	45000
CY2019Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	102171000
CY2020Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	549000
CY2019Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	4178000
CY2020Q4	us-gaap	Land And Land Improvements LandAndLandImprovements	62131000
CY2019Q4	us-gaap	Land And Land Improvements LandAndLandImprovements	66609000
CY2020Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	224942000
CY2019Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	221139000
CY2020Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	106501000
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	393574000
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	389919000
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	200214000
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	187437000
CY2020Q4	wsbc	Operating Lease And Finance Lease Right Of Use Asset OperatingLeaseAndFinanceLeaseRightOfUseAsset	56061000
CY2019Q4	wsbc	Operating Lease And Finance Lease Right Of Use Asset OperatingLeaseAndFinanceLeaseRightOfUseAsset	58532000
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	249421000
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	261014000
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	14100000
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	11500000
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	10500000
CY2020Q4	wsbc	Capitalized Right Of Use Asset And Lease Liabilities To Be Regcognize Upon Adoption Of Asu CapitalizedRightOfUseAssetAndLeaseLiabilitiesToBeRegcognizeUponAdoptionOfASU	20000000
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P15Y8M12D
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	51500000
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	56000000.0
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	53600000
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	56500000
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	5800000
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	5400000
CY2018	us-gaap	Operating Lease Expense OperatingLeaseExpense	4500000
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0281
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P13Y6M
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	4500000
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	5200000
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	5000000.0
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	5600000
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0378
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0377
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	400000
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	400000
CY2018	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	400000
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	200000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	6358000
CY2020Q4	wsbc	Lease Liability Payments Due Next Twelve Months LeaseLiabilityPaymentsDueNextTwelveMonths	7213000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	5566000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	855000
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	200000
CY2018	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	200000
CY2020Q4	wsbc	Lease Liability Undiscounted Excess Amount LeaseLiabilityUndiscountedExcessAmount	18427000
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	56036000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	873000
CY2020Q4	wsbc	Lease Liability Payments Due Year Two LeaseLiabilityPaymentsDueYearTwo	6439000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	5010000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	885000
CY2020Q4	wsbc	Lease Liability Payments Due Year Three LeaseLiabilityPaymentsDueYearThree	5895000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	4526000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	890000
CY2020Q4	wsbc	Lease Liability Payments Due Year Four LeaseLiabilityPaymentsDueYearFour	5416000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	4365000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	861000
CY2020Q4	wsbc	Lease Liability Payments Due Year Five LeaseLiabilityPaymentsDueYearFive	5226000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	45676000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	3778000
CY2020Q4	wsbc	Lease Liability Payments Due After Year Five LeaseLiabilityPaymentsDueAfterYearFive	49454000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	71501000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	8142000
CY2020Q4	wsbc	Lease Liability Payments Due LeaseLiabilityPaymentsDue	79643000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	15465000
CY2020Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	2962000
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	5180000
CY2020Q4	wsbc	Lease Liability LeaseLiability	61216000
CY2020Q4	us-gaap	Goodwill Goodwill	1100000000
CY2019Q4	us-gaap	Goodwill Goodwill	1100000000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	66300000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	80400000
CY2020	wsbc	Amortization Of Core Deposits And Customer List AmortizationOfCoreDepositsAndCustomerList	13400000
CY2019	wsbc	Amortization Of Core Deposits And Customer List AmortizationOfCoreDepositsAndCustomerList	10100000
CY2018	wsbc	Amortization Of Core Deposits And Customer List AmortizationOfCoreDepositsAndCustomerList	6400000
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	118495000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	119387000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	52166000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	38954000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	66329000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	80433000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	66329000
CY2018	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	2100000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	11457000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	10278000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	9088000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	8251000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	7475000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	19780000
CY2020	wsbc	Number Of Limited Partnerships Held NumberOfLimitedPartnershipsHeld	7
CY2020	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	3300000
CY2019	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	2600000
CY2020Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	843200000
CY2019Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	1200000000
CY2020	us-gaap	Interest Expense Time Deposits100000 Or More InterestExpenseTimeDeposits100000OrMore	6400000
CY2019	us-gaap	Interest Expense Time Deposits100000 Or More InterestExpenseTimeDeposits100000OrMore	8000000.0
CY2018	us-gaap	Interest Expense Time Deposits100000 Or More InterestExpenseTimeDeposits100000OrMore	8300000
CY2020Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	1000380000
CY2020Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	266077000
CY2020Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	134647000
CY2020Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	91984000
CY2020Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	67226000
CY2020Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	58196000
CY2020Q4	us-gaap	Time Deposits TimeDeposits	1618510000
CY2020Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	500000000
CY2019Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	1400000000
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate At Period End FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateAtPeriodEnd	0.0205
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate At Period End FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateAtPeriodEnd	0.0227
CY2020Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	34000000.0
CY2019Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	66800000
CY2020Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	4100000000
CY2019Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	3200000000
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	365002000
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Of Amounts Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate	0.0244
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From One To Two Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate	128050000
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate One To Two Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate	0.0133
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Two To Three Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate	55000000
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Two To Three Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate	0.0117
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Four To Five Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromFourToFiveYearsOfBalanceSheetDate	882000
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Four To Five Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateFourToFiveYearsFromBalanceSheetDate	0.0145
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due After Five Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterFiveYearsOfBalanceSheetDate	69000
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate After Five Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateAfterFiveYearsFromBalanceSheetDate	0.0289
CY2020Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	549003000
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate FederalHomeLoanBankAdvancesWeightedAverageInterestRate	0.0205
CY2020Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	242000000.0
CY2019Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	282400000
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	242000000.0
CY2019Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	274900000
CY2020Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	0
CY2019Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	7500000
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Branch Of Fhlb Bank Interest Rate FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate	0.0155
CY2019Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.0353
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.011
CY2020Q4	us-gaap	Subordinated Debt SubordinatedDebt	60100000
CY2020	wsbc	Description Of Deferment Period For Payment Of Interest On Junior Subordinated Debt Under Trust DescriptionOfDefermentPeriodForPaymentOfInterestOnJuniorSubordinatedDebtUnderTrust	20 consecutive quarterly periods
CY2020	wsbc	Minimum Assets To Continue Counting Existing Trust Preferred Securities MinimumAssetsToContinueCountingExistingTrustPreferredSecurities	15000000000
CY2020Q4	wsbc	Trust Preferred Securities Outstanding TrustPreferredSecuritiesOutstanding	128157000
CY2020Q4	wsbc	Trust Preferred Securities Common Securities TrustPreferredSecuritiesCommonSecurities	4033000
CY2020Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	132190000
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	47120000
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	51078000
CY2019Q4	us-gaap	Derivative Assets DerivativeAssets	14629000
CY2019Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	16205000
CY2020	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-8750000
CY2019	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-2536000
CY2018	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	131000
CY2020Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	84600000
CY2020	wsbc	Defined Benefit Pension Plan Benefits Bases On Period Of Service And Compensation DefinedBenefitPensionPlanBenefitsBasesOnPeriodOfServiceAndCompensation	P5Y
CY2020Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	157328000
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	142980000
CY2019Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	153960000
CY2018Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	128758000
CY2020	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	2283000
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	2248000
CY2020	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	4507000
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	5266000
CY2020	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	14376000
CY2019	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	22395000
CY2020	us-gaap	Defined Benefit Plan Plan Amendments DefinedBenefitPlanPlanAmendments	-313000
CY2020	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	6380000
CY2019	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	4707000
CY2020Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	168433000
CY2019Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	153960000
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	167720000
CY2018Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	141108000
CY2020	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	24376000
CY2019	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	28319000
CY2019	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	3000000
CY2020	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	6380000
CY2019	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	4707000
CY2020Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	185716000
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	167720000
CY2020Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	17284000
CY2019Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	13760000
CY2020Q4	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	17284000
CY2019Q4	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	13760000
CY2020Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Prior Service Cost Credit Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax	-227000
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Prior Service Cost Credit Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax	52000
CY2020Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	21726000
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	24486000
CY2020Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	21499000
CY2020Q4	wsbc	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationCostExpectedLongTermReturnOnAssets	0.0611
CY2019Q4	wsbc	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationCostExpectedLongTermReturnOnAssets	0.0630
CY2020	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	2283000
CY2020	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Net Prior Service Cost Credit Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax	-34000
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0338
CY2018	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	2835000
CY2019	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Net Prior Service Cost Credit Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax	26000
CY2018	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Net Prior Service Cost Credit Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax	26000
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	24538000
CY2020Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0274
CY2019Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0338
CY2020Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.0330
CY2020Q4	us-gaap	Defined Benefit Plan Expected Amortization Of Gain Loss Next Fiscal Year DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear	-3192000
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y8M12D
CY2019Q4	us-gaap	Defined Benefit Plan Expected Amortization Of Gain Loss Next Fiscal Year DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear	-3240000
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0448
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	2248000
CY2018Q4	us-gaap	Defined Benefit Plan Expected Amortization Of Gain Loss Next Fiscal Year DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear	-3053000
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0381
CY2018	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	2500000
CY2019	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	2946000
CY2018	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	2068000
CY2020	wsbc	Defined Benefit Plan Prior Service Credit DefinedBenefitPlanPriorServiceCredit	-313000
CY2018	wsbc	Defined Benefit Plan Unrecognized Gain Loss On Merged Plan DefinedBenefitPlanUnrecognizedGainLossOnMergedPlan	1429000
CY2020	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	0
CY2019	wsbc	Defined Benefit Plan Amounts Recognized In Net Periodic Pension Cost And Other Comprehensive Income DefinedBenefitPlanAmountsRecognizedInNetPeriodicPensionCostAndOtherComprehensiveIncome	1591000
CY2018	wsbc	Defined Benefit Plan Amounts Recognized In Net Periodic Pension Cost And Other Comprehensive Income DefinedBenefitPlanAmountsRecognizedInNetPeriodicPensionCostAndOtherComprehensiveIncome	1910000
CY2020	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	4507000
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	5266000
CY2018	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	4517000
CY2020	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	10433000
CY2019	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	8869000
CY2018	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	8939000
CY2020	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	-34000
CY2019	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	26000
CY2018	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	26000
CY2020	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	3192000
CY2019	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	3240000
CY2018	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	3053000
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-485000
CY2019	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1911000
CY2018	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1492000
CY2020	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	432000
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-3039000
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-320000
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	418000
CY2020	wsbc	Defined Benefit Plan Amounts Recognized In Net Periodic Pension Cost And Other Comprehensive Income DefinedBenefitPlanAmountsRecognizedInNetPeriodicPensionCostAndOtherComprehensiveIncome	-3524000
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.0353
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.0362
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.0370
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0630
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0630
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0630
CY2020	wsbc	Maximum Percentage Of Investment In Any Stock MaximumPercentageOfInvestmentInAnyStock	0.05
CY2020	wsbc	Maximum Common Stock Percentage Of Market Value Of Investee MaximumCommonStockPercentageOfMarketValueOfInvestee	0.05
CY2020	wsbc	Maximum Percentage Of Investment In Any Bond Or Note MaximumPercentageOfInvestmentInAnyBondOrNote	0.05
CY2020	wsbc	Defined Benefit Pension Plan Investment Period Maximum Term For Bonds Or Notes DefinedBenefitPensionPlanInvestmentPeriodMaximumTermForBondsOrNotes	P20Y
CY2019Q4	us-gaap	Defined Benefit Plan Number Of Shares Of Equity Securities Issued By Employer And Related Parties Included In Plan Assets DefinedBenefitPlanNumberOfSharesOfEquitySecuritiesIssuedByEmployerAndRelatedPartiesIncludedInPlanAssets	55300
CY2020Q4	us-gaap	Defined Benefit Plan Number Of Shares Of Equity Securities Issued By Employer And Related Parties Included In Plan Assets DefinedBenefitPlanNumberOfSharesOfEquitySecuritiesIssuedByEmployerAndRelatedPartiesIncludedInPlanAssets	55300
CY2020Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2019Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2020Q4	wsbc	Defined Benefit Plan Fair Value Of Plan Assets Excluding Cash Accrued Interest And Dividends And Due To From Brokers DefinedBenefitPlanFairValueOfPlanAssetsExcludingCashAccruedInterestAndDividendsAndDueToFromBrokers	185300000
CY2020Q4	wsbc	Defined Benefit Plan Net Assets Available For Benefits DefinedBenefitPlanNetAssetsAvailableForBenefits	186300000
CY2019Q4	wsbc	Defined Benefit Plan Fair Value Of Plan Assets Excluding Cash Accrued Interest And Dividends And Due To From Brokers DefinedBenefitPlanFairValueOfPlanAssetsExcludingCashAccruedInterestAndDividendsAndDueToFromBrokers	169261000
CY2019Q4	wsbc	Defined Benefit Plan Net Assets Available For Benefits DefinedBenefitPlanNetAssetsAvailableForBenefits	167900000
CY2019	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	3000000.0
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	6105000
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	6313000
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	6669000
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	7027000
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	7416000
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	41262000
CY2018	wsbc	Defined Contribution Plan Percentage Of First Eligible Employee Contribution Matched By Employer DefinedContributionPlanPercentageOfFirstEligibleEmployeeContributionMatchedByEmployer	1
CY2020	wsbc	Defined Contribution Plan Percentage Of First Eligible Employee Contribution Matched By Employer DefinedContributionPlanPercentageOfFirstEligibleEmployeeContributionMatchedByEmployer	1
CY2019	wsbc	Defined Contribution Plan Percentage Of First Eligible Employee Contribution Matched By Employer DefinedContributionPlanPercentageOfFirstEligibleEmployeeContributionMatchedByEmployer	1
CY2018	wsbc	Eligible Employee Contributions Specified Percentage One EligibleEmployeeContributionsSpecifiedPercentageOne	0.03
CY2020	wsbc	Eligible Employee Contributions Specified Percentage One EligibleEmployeeContributionsSpecifiedPercentageOne	0.03
CY2019	wsbc	Eligible Employee Contributions Specified Percentage One EligibleEmployeeContributionsSpecifiedPercentageOne	0.03
CY2020	wsbc	Defined Contribution Plan Percentage Of Next Eligible Employee Contribution Matched By Employer DefinedContributionPlanPercentageOfNextEligibleEmployeeContributionMatchedByEmployer	0.50
CY2020	us-gaap	Employee Stock Ownership Plan Esop Cash Contributions To Esop EmployeeStockOwnershipPlanESOPCashContributionsToESOP	0
CY2018	wsbc	Defined Contribution Plan Percentage Of Next Eligible Employee Contribution Matched By Employer DefinedContributionPlanPercentageOfNextEligibleEmployeeContributionMatchedByEmployer	0.50
CY2019	wsbc	Defined Contribution Plan Percentage Of Next Eligible Employee Contribution Matched By Employer DefinedContributionPlanPercentageOfNextEligibleEmployeeContributionMatchedByEmployer	0.50
CY2018	wsbc	Eligible Employee Contributions Specified Percentage Two EligibleEmployeeContributionsSpecifiedPercentageTwo	0.02
CY2019	wsbc	Eligible Employee Contributions Specified Percentage Two EligibleEmployeeContributionsSpecifiedPercentageTwo	0.02
CY2020	wsbc	Eligible Employee Contributions Specified Percentage Two EligibleEmployeeContributionsSpecifiedPercentageTwo	0.02
CY2019	us-gaap	Employee Stock Ownership Plan Esop Cash Contributions To Esop EmployeeStockOwnershipPlanESOPCashContributionsToESOP	0
CY2018	us-gaap	Employee Stock Ownership Plan Esop Cash Contributions To Esop EmployeeStockOwnershipPlanESOPCashContributionsToESOP	0
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	45000
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	132000
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	153000
CY2020	wsbc	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options In Cash EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptionsInCash	11000
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	157000
CY2019	wsbc	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options In Cash EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptionsInCash	30000
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y7M6D
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y2M12D
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0041
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0218
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0295
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0594
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0280
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0254
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.2838
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.2197
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.2127
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	2.54
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	6.36
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	8.54
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	733440
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	33.06
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	142600
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	21.55
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	61623
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	15.93
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	39668
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	22.03
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	774749
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	32.87
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	703636
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	34.01
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2200000
CY2020Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	1600000
CY2020Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	703636
CY2020Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	774749
CY2020Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	32.87
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.012
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.009
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.006
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.008
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.037
CY2020Q4	wsbc	Allowance For Loan Commitments AllowanceForLoanCommitments	9500000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.022
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.016
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.020
CY2019Q4	wsbc	Allowance For Loan Commitments AllowanceForLoanCommitments	900000
CY2018	us-gaap	Postage Expense PostageExpense	4143000
CY2019	wsbc	Other Real Estate Owned And Foreclosure Expense OtherRealEstateOwnedAndForeclosureExpense	397000
CY2020	us-gaap	Supplies Expense SuppliesExpense	4561000
CY2019	us-gaap	Postage Expense PostageExpense	5334000
CY2020	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	6189000
CY2019	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	6990000
CY2018	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	7186000
CY2020	wsbc	Debit Card Sponsorship Income DebitCardSponsorshipIncome	2792000
CY2019	wsbc	Debit Card Sponsorship Income DebitCardSponsorshipIncome	328000
CY2020	wsbc	Electronic Banking Fees ElectronicBankingFees	17524000
CY2019	wsbc	Electronic Banking Fees ElectronicBankingFees	22634000
CY2018	wsbc	Electronic Banking Fees ElectronicBankingFees	23300000
CY2020	wsbc	Non Interest Income Derived From Mortgage Banking Activities NonInterestIncomeDerivedFromMortgageBankingActivities	22736000
CY2019	wsbc	Non Interest Income Derived From Mortgage Banking Activities NonInterestIncomeDerivedFromMortgageBankingActivities	8219000
CY2018	wsbc	Non Interest Income Derived From Mortgage Banking Activities NonInterestIncomeDerivedFromMortgageBankingActivities	5840000
CY2020	wsbc	Net Gain Loss On Other Real Estate Owned And Other Assets NetGainLossOnOtherRealEstateOwnedAndOtherAssets	103000
CY2019	wsbc	Net Gain Loss On Other Real Estate Owned And Other Assets NetGainLossOnOtherRealEstateOwnedAndOtherAssets	732000
CY2018	wsbc	Net Gain Loss On Other Real Estate Owned And Other Assets NetGainLossOnOtherRealEstateOwnedAndOtherAssets	524000
CY2020	wsbc	Other Miscellaneous Taxes OtherMiscellaneousTaxes	14112000
CY2019	wsbc	Other Miscellaneous Taxes OtherMiscellaneousTaxes	12813000
CY2018	wsbc	Other Miscellaneous Taxes OtherMiscellaneousTaxes	9847000
CY2020	wsbc	Consulting Regulatory And Other Advisory Expenses ConsultingRegulatoryAndOtherAdvisoryExpenses	11717000
CY2019	wsbc	Consulting Regulatory And Other Advisory Expenses ConsultingRegulatoryAndOtherAdvisoryExpenses	8993000
CY2018	wsbc	Consulting Regulatory And Other Advisory Expenses ConsultingRegulatoryAndOtherAdvisoryExpenses	6976000
CY2020	wsbc	Atm Interchange And Credit Card Expenses AtmInterchangeAndCreditCardExpenses	8365000
CY2019	wsbc	Atm Interchange And Credit Card Expenses AtmInterchangeAndCreditCardExpenses	6931000
CY2018	wsbc	Atm Interchange And Credit Card Expenses AtmInterchangeAndCreditCardExpenses	5718000
CY2020	us-gaap	Postage Expense PostageExpense	5028000
CY2019	us-gaap	Supplies Expense SuppliesExpense	4499000
CY2018	us-gaap	Supplies Expense SuppliesExpense	3180000
CY2020	us-gaap	Legal Fees LegalFees	3307000
CY2019	us-gaap	Legal Fees LegalFees	3054000
CY2018	us-gaap	Legal Fees LegalFees	2778000
CY2020	us-gaap	Direct Operating Communications Costs DirectOperatingCommunicationsCosts	4292000
CY2019	us-gaap	Direct Operating Communications Costs DirectOperatingCommunicationsCosts	3720000
CY2018	us-gaap	Direct Operating Communications Costs DirectOperatingCommunicationsCosts	2569000
CY2020	wsbc	Other Real Estate Owned And Foreclosure Expense OtherRealEstateOwnedAndForeclosureExpense	-108000
CY2018	wsbc	Other Real Estate Owned And Foreclosure Expense OtherRealEstateOwnedAndForeclosureExpense	831000
CY2020	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	19474000
CY2019	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	16915000
CY2018	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	14679000
CY2020	us-gaap	Other Noninterest Expense OtherNoninterestExpense	70748000
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	62656000
CY2018	us-gaap	Other Noninterest Expense OtherNoninterestExpense	50721000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.042
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.033
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.032
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.019
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.017
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.017
CY2020	wsbc	Interest And Dividend Income InterestAndDividendIncome	541277000
CY2020Q1	wsbc	Interest Expenses InterestExpenses	22286000
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.159
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	40000
CY2019Q4	wsbc	Deferred Tax Assets Nonaccrual Interest Income DeferredTaxAssetsNonaccrualInterestIncome	1297000
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.178
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	367000
CY2018Q4	wsbc	Deferred Tax Assets Nonaccrual Interest Income DeferredTaxAssetsNonaccrualInterestIncome	1388000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	149000
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	27924000
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	5472000
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.180
CY2020Q4	wsbc	Deferred Tax Liabilities Purchase Accounting Adjustments DeferredTaxLiabilitiesPurchaseAccountingAdjustments	8669000
CY2019Q4	wsbc	Deferred Tax Liabilities Purchase Accounting Adjustments DeferredTaxLiabilitiesPurchaseAccountingAdjustments	2787000
CY2018Q4	wsbc	Deferred Tax Liabilities Purchase Accounting Adjustments DeferredTaxLiabilitiesPurchaseAccountingAdjustments	1003000
CY2020Q4	wsbc	Deferred Tax Liabilities Fair Value Adjustments On Securities Available For Sale DeferredTaxLiabilitiesFairValueAdjustmentsOnSecuritiesAvailableForSale	14865000
CY2019Q4	wsbc	Deferred Tax Liabilities Fair Value Adjustments On Securities Available For Sale DeferredTaxLiabilitiesFairValueAdjustmentsOnSecuritiesAvailableForSale	5749000
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	6923000
CY2020Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	3018000
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	299000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	23035000
CY2020Q4	wsbc	Deferred Tax Liabilities Partnership Adjustments DeferredTaxLiabilitiesPartnershipAdjustments	555000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34341000
CY2019Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	2388000
CY2018Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	1641000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	31412000
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	43401000
CY2019Q4	wsbc	Deferred Tax Assets Securities Gains And Losses DeferredTaxAssetsSecuritiesGainsAndLosses	3031000
CY2018Q4	wsbc	Deferred Tax Assets Securities Gains And Losses DeferredTaxAssetsSecuritiesGainsAndLosses	3707000
CY2020Q4	wsbc	Deferred Tax Liabilities Lease Right Of Use Assets DeferredTaxLiabilitiesLeaseRightOfUseAssets	12438000
CY2019Q4	wsbc	Deferred Tax Liabilities Lease Right Of Use Assets DeferredTaxLiabilitiesLeaseRightOfUseAssets	13064000
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	28902000
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	5172000
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	36043000
CY2020Q4	wsbc	Deferred Tax Assets Nonaccrual Interest Income DeferredTaxAssetsNonaccrualInterestIncome	1135000
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	18531000
CY2019Q4	wsbc	Deferred Tax Liabilities Accretion On Securities DeferredTaxLiabilitiesAccretionOnSecurities	339000
CY2018Q4	wsbc	Deferred Tax Liabilities Accretion On Securities DeferredTaxLiabilitiesAccretionOnSecurities	461000
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	22540000
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	20707000
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5629000
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3977000
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3542000
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-8418000
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	7736000
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	6864000
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-2100000
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	88000
CY2020	wsbc	Income Tax Amounts Recorded In Other Comprehensive Income Related To Securities And Defined Benefit Pension Plan IncomeTaxAmountsRecordedInOtherComprehensiveIncomeRelatedToSecuritiesAndDefinedBenefitPensionPlan	9730000
CY2019	wsbc	Income Tax Amounts Recorded In Other Comprehensive Income Related To Securities And Defined Benefit Pension Plan IncomeTaxAmountsRecordedInOtherComprehensiveIncomeRelatedToSecuritiesAndDefinedBenefitPensionPlan	11570000
CY2018	wsbc	Income Tax Amounts Recorded In Other Comprehensive Income Related To Securities And Defined Benefit Pension Plan IncomeTaxAmountsRecordedInOtherComprehensiveIncomeRelatedToSecuritiesAndDefinedBenefitPensionPlan	-1250000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	44859000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	12788000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	11207000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	6894000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	7144000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	5851000
CY2020Q4	wsbc	Deferred Tax Assets Securities Gains And Losses DeferredTaxAssetsSecuritiesGainsAndLosses	2113000
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	4854000
CY2018Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	6345000
CY2020Q4	wsbc	Deferred Tax Assets Lease Accrual DeferredTaxAssetsLeaseAccrual	13530000
CY2019Q4	wsbc	Deferred Tax Assets Lease Accrual DeferredTaxAssetsLeaseAccrual	13787000
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	5441000
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2314000
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2125000
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	79444000
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	47433000
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	35477000
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	3414000
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	4014000
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1020000
CY2020Q4	wsbc	Deferred Tax Liabilities Accretion On Securities DeferredTaxLiabilitiesAccretionOnSecurities	274000
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	30305000
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	110000
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	89000
CY2020Q4	wsbc	Qualifying And Non Qualifying Tax Bad Debt Reserves QualifyingAndNonQualifyingTaxBadDebtReserves	45900000
CY2019Q4	wsbc	Qualifying And Non Qualifying Tax Bad Debt Reserves QualifyingAndNonQualifyingTaxBadDebtReserves	45900000
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	70000
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0
CY2020	wsbc	Qualifying And Non Qualifying Tax Bad Debt Reserves Income Tax QualifyingAndNonQualifyingTaxBadDebtReservesIncomeTax	0
CY2020Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Reserves And Accruals DeferredTaxLiabilitiesDeferredExpenseReservesAndAccruals	10800000
CY2019Q4	wsbc	Deferred Tax Liabilities Partnership Adjustments DeferredTaxLiabilitiesPartnershipAdjustments	521000
CY2018Q4	wsbc	Deferred Tax Liabilities Partnership Adjustments DeferredTaxLiabilitiesPartnershipAdjustments	680000
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	324000
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	434000
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	465000
CY2019Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Reserves And Accruals DeferredTaxLiabilitiesDeferredExpenseReservesAndAccruals	10800000
CY2020	wsbc	Federal Income Tax Expense Applicable To Sales And Calls Of Securities FederalIncomeTaxExpenseApplicableToSalesAndCallsOfSecurities	1000000.0
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	168000
CY2020Q4	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	200000
CY2019Q4	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	200000
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	68000
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0
CY2019	wsbc	Federal Income Tax Expense Applicable To Sales And Calls Of Securities FederalIncomeTaxExpenseApplicableToSalesAndCallsOfSecurities	1000000.0
CY2018	wsbc	Federal Income Tax Expense Applicable To Sales And Calls Of Securities FederalIncomeTaxExpenseApplicableToSalesAndCallsOfSecurities	-200000
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	300000
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	400000
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	300000
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	434000
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	465000
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	467000
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	58000
CY2019	wsbc	Fair Value Transfers Between Level FairValueTransfersBetweenLevel	0
CY2020	wsbc	Fair Value Transfers Between Level FairValueTransfersBetweenLevel	0
CY2019	wsbc	Income Tax Expense Benefit Combined Federal And State Income Tax Rate IncomeTaxExpenseBenefitCombinedFederalAndStateIncomeTaxRate	0.23
CY2018	wsbc	Income Tax Expense Benefit Combined Federal And State Income Tax Rate IncomeTaxExpenseBenefitCombinedFederalAndStateIncomeTaxRate	0.23
CY2020	wsbc	Income Tax Expense Benefit Combined Federal And State Income Tax Rate IncomeTaxExpenseBenefitCombinedFederalAndStateIncomeTaxRate	0.23
CY2020	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	325000
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	1970000
CY2018	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	1949000
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	158873000
CY2018	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	414957000
CY2018	us-gaap	Interest Expense InterestExpense	67721000
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	347236000
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	7764000
CY2018	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	339472000
CY2018	us-gaap	Noninterest Income NoninterestIncome	100276000
CY2018	us-gaap	Noninterest Expense NoninterestExpense	265224000
CY2020Q4	wsbc	Lines Of Credit LinesOfCredit	2510011000
CY2019Q4	wsbc	Lines Of Credit LinesOfCredit	2469676000
CY2020Q4	wsbc	Loans Approved But Not Closed LoansApprovedButNotClosed	381180000
CY2019Q4	wsbc	Loans Approved But Not Closed LoansApprovedButNotClosed	504623000
CY2020Q4	wsbc	Overdraft Limits OverdraftLimits	154322000
CY2019Q4	wsbc	Overdraft Limits OverdraftLimits	149519000
CY2020Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	53788000
CY2019Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	57205000
CY2020Q4	wsbc	Contingent Obligations To Purchase Loans Funded By Other Entities ContingentObligationsToPurchaseLoansFundedByOtherEntities	126984000
CY2019Q4	wsbc	Contingent Obligations To Purchase Loans Funded By Other Entities ContingentObligationsToPurchaseLoansFundedByOtherEntities	81551000
CY2020Q4	us-gaap	Due From Related Parties DueFromRelatedParties	12400000
CY2019Q4	us-gaap	Due From Related Parties DueFromRelatedParties	8900000
CY2018Q4	us-gaap	Due From Related Parties DueFromRelatedParties	10600000
CY2020	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	11800000
CY2020	us-gaap	Proceeds From Related Party Debt ProceedsFromRelatedPartyDebt	8300000
CY2020Q4	wsbc	Delinquent Related Party Loans Outstanding DelinquentRelatedPartyLoansOutstanding	0
CY2019Q4	wsbc	Delinquent Related Party Loans Outstanding DelinquentRelatedPartyLoansOutstanding	0
CY2018Q4	wsbc	Delinquent Related Party Loans Outstanding DelinquentRelatedPartyLoansOutstanding	0
CY2020	wsbc	Related Party Loan Past Due Period RelatedPartyLoanPastDuePeriod	P90D
CY2020Q4	wsbc	Bank Dividend Restricted Amount BankDividendRestrictedAmount	306300000
CY2019Q4	wsbc	Average Non Interest Bearing Reserve Balance Required In Federal Reserve Bank AverageNonInterestBearingReserveBalanceRequiredInFederalReserveBank	500000
CY2020Q4	wsbc	Average Non Interest Bearing Reserve Balance Required In Federal Reserve Bank AverageNonInterestBearingReserveBalanceRequiredInFederalReserveBank	0
CY2020Q4	wsbc	Common Equity Tier One Capital Required For Capital Minimum To Average Assets CommonEquityTierOneCapitalRequiredForCapitalMinimumToAverageAssets	0.045
CY2020Q4	wsbc	Tier One Risk Based Capital Required For Capital Minimum To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalMinimumToRiskWeightedAssets	0.06
CY2020Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	8
CY2020Q4	wsbc	Common Equity Tier One Capital Required To Be Well Capitalized To Average Assets CommonEquityTierOneCapitalRequiredToBeWellCapitalizedToAverageAssets	0.065
CY2020Q4	wsbc	Capital Required For Capital Minimum To Risk Weighted Assets CapitalRequiredForCapitalMinimumToRiskWeightedAssets	0.08
CY2020Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	10
CY2020Q4	wsbc	Assets Threshold Provision Of Dodd Frank Act AssetsThresholdProvisionOfDoddFrankAct	15000000000
CY2020Q2	wsbc	Interest Expenses InterestExpenses	15681000
CY2020Q3	wsbc	Interest Expenses InterestExpenses	13064000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	174524000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	31412000
CY2020Q4	wsbc	Capital Conservation Buffer Common Equity Tier One Risk Based Capital Minimum CapitalConservationBufferCommonEquityTierOneRiskBasedCapitalMinimum	0.070
CY2020Q4	wsbc	Capital Conservation Buffer Tier One Risk Based Capital CapitalConservationBufferTierOneRiskBasedCapital	0.085
CY2020Q4	wsbc	Capital Conservation Buffer Total Risk Based Capital CapitalConservationBufferTotalRiskBasedCapital	0.105
CY2020Q4	wsbc	Trust Preferred Securities Included In Tier Two Capital TrustPreferredSecuritiesIncludedInTierTwoCapital	130000000.0
CY2020Q4	wsbc	Tier One Leverage Capital Required For Capital Adequacy To Average Assets Ratio TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssetsRatio	0.0400
CY2020Q4	wsbc	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets Ratio TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssetsRatio	0.0500
CY2020Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	1617413000
CY2020Q4	wsbc	Tier One Leverage Capital To Average Assets Ratio TierOneLeverageCapitalToAverageAssetsRatio	0.1051
CY2019Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	1441738000
CY2019Q4	wsbc	Tier One Leverage Capital To Average Assets Ratio TierOneLeverageCapitalToAverageAssetsRatio	0.1130
CY2020Q4	wsbc	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Ratio TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssetsRatio	0.0600
CY2020Q4	wsbc	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssetsRatio	0.0800
CY2020Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	1617413000
CY2020Q4	wsbc	Tier One Risk Based Capital To Risk Weighted Assets Ratio TierOneRiskBasedCapitalToRiskWeightedAssetsRatio	0.1472
CY2019Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	1441738000
CY2019Q4	wsbc	Tier One Risk Based Capital To Risk Weighted Assets Ratio TierOneRiskBasedCapitalToRiskWeightedAssetsRatio	0.1289
CY2020Q4	wsbc	Capital Required For Capital Adequacy To Risk Weighted Assets Ratio CapitalRequiredForCapitalAdequacyToRiskWeightedAssetsRatio	0.0800
CY2020Q4	wsbc	Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio CapitalRequiredToBeWellCapitalizedToRiskWeightedAssetsRatio	0.1000
CY2020Q4	us-gaap	Capital Capital	1931414000
CY2020Q4	wsbc	Capital To Risk Weighted Assets Ratio CapitalToRiskWeightedAssetsRatio	0.1758
CY2019Q4	us-gaap	Capital Capital	1691764000
CY2019Q4	wsbc	Capital To Risk Weighted Assets Ratio CapitalToRiskWeightedAssetsRatio	0.1512
CY2020Q4	wsbc	Common Equity Tier One Capital Required For Capital Adequacy To Average Assets CommonEquityTierOneCapitalRequiredForCapitalAdequacyToAverageAssets	0.0450
CY2020Q4	wsbc	Common Equity Tier One Capital Required To Be Well Capitalized To Average Assets CommonEquityTierOneCapitalRequiredToBeWellCapitalizedToAverageAssets	0.0650
CY2020Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	1472929000
CY2020Q4	wsbc	Common Equity Tier One Capital To Average Assets CommonEquityTierOneCapitalToAverageAssets	0.1340
CY2019Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	1441738000
CY2019Q4	wsbc	Common Equity Tier One Capital To Average Assets CommonEquityTierOneCapitalToAverageAssets	0.1289
CY2020	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2
CY2020	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	541277000
CY2020	us-gaap	Interest Expense InterestExpense	61797000
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	479480000
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	107741000
CY2020	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	371739000
CY2020	us-gaap	Noninterest Income NoninterestIncome	128185000
CY2020	us-gaap	Noninterest Expense NoninterestExpense	354845000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	145079000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	23035000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	122044000
CY2020	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	2644000
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	119400000
CY2019	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	484253000
CY2019	us-gaap	Interest Expense InterestExpense	84349000
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	399904000
CY2019	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	11198000
CY2019	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	388706000
CY2019	us-gaap	Noninterest Income NoninterestIncome	116716000
CY2019	us-gaap	Noninterest Expense NoninterestExpense	312208000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	193214000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34341000
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	143112000
CY2020Q1	wsbc	Interest And Dividend Income InterestAndDividendIncome	142448000
CY2020Q2	wsbc	Interest And Dividend Income InterestAndDividendIncome	134694000
CY2020Q3	wsbc	Interest And Dividend Income InterestAndDividendIncome	133657000
CY2020Q4	wsbc	Interest And Dividend Income InterestAndDividendIncome	130478000
CY2020Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	1299000
CY2020Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	787000
CY2020Q4	us-gaap	Gain Loss On Investments GainLossOnInvestments	691000
CY2020	us-gaap	Gain Loss On Investments GainLossOnInvestments	4268000
CY2020Q1	us-gaap	Noninterest Expense NoninterestExpense	91333000
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	45681000
CY2020Q2	us-gaap	Noninterest Expense NoninterestExpense	85502000
CY2020Q3	us-gaap	Noninterest Expense NoninterestExpense	89943000
CY2020Q4	us-gaap	Noninterest Expense NoninterestExpense	88069000
CY2020	us-gaap	Noninterest Expense NoninterestExpense	354845000
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	41305000
CY2020Q1	us-gaap	Gain Loss On Investments GainLossOnInvestments	1491000
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	4488000
CY2020Q4	wsbc	Interest Expenses InterestExpenses	10766000
CY2020	wsbc	Interest Expenses InterestExpenses	61797000
CY2020Q1	wsbc	Net Interest Income NetInterestIncome	120162000
CY2020Q2	wsbc	Net Interest Income NetInterestIncome	119013000
CY2020Q3	wsbc	Net Interest Income NetInterestIncome	120593000
CY2020Q4	wsbc	Net Interest Income NetInterestIncome	119712000
CY2020	wsbc	Net Interest Income NetInterestIncome	479480000
CY2020Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	29821000
CY2020Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	61841000
CY2020Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	16288000
CY2020Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-209000
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	107741000
CY2020Q1	wsbc	Net Interest Income After Provision For Credit Losses NetInterestIncomeAfterProvisionForCreditLosses	90341000
CY2020Q2	wsbc	Net Interest Income After Provision For Credit Losses NetInterestIncomeAfterProvisionForCreditLosses	57172000
CY2020Q3	wsbc	Net Interest Income After Provision For Credit Losses NetInterestIncomeAfterProvisionForCreditLosses	104305000
CY2020Q4	wsbc	Net Interest Income After Provision For Credit Losses NetInterestIncomeAfterProvisionForCreditLosses	119921000
CY2020	wsbc	Net Interest Income After Provision For Credit Losses NetInterestIncomeAfterProvisionForCreditLosses	371739000
CY2020Q1	wsbc	Noninterest Income Excluding Net Securities Gains NoninterestIncomeExcludingNetSecuritiesGains	26518000
CY2020Q2	wsbc	Noninterest Income Excluding Net Securities Gains NoninterestIncomeExcludingNetSecuritiesGains	31561000
CY2020Q3	wsbc	Noninterest Income Excluding Net Securities Gains NoninterestIncomeExcludingNetSecuritiesGains	33825000
CY2020Q4	wsbc	Noninterest Income Excluding Net Securities Gains NoninterestIncomeExcludingNetSecuritiesGains	32014000
CY2020	wsbc	Noninterest Income Excluding Net Securities Gains NoninterestIncomeExcludingNetSecuritiesGains	123917000
CY2020Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	27017000
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	4530000
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	48974000
CY2020Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	64557000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	145079000
CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3621000
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	42000
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7669000
CY2020Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11703000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	23035000
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	23396000
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	52854000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	122044000
CY2020Q4	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	2644000
CY2020	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	2644000
CY2020Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	23396000
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	4488000
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	41305000
CY2020Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	50210000
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	119400000
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.34
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.07
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.61
CY2020Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.75
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.78
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.34
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.07
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.61
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.75
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.77
CY2019Q1	wsbc	Interest And Dividend Income InterestAndDividendIncome	119053000
CY2019Q2	wsbc	Interest And Dividend Income InterestAndDividendIncome	119543000
CY2019Q3	wsbc	Interest And Dividend Income InterestAndDividendIncome	117348000
CY2019Q4	wsbc	Interest And Dividend Income InterestAndDividendIncome	128309000
CY2019	wsbc	Interest And Dividend Income InterestAndDividendIncome	484253000
CY2019Q1	wsbc	Interest Expenses InterestExpenses	20692000
CY2019Q2	wsbc	Interest Expenses InterestExpenses	21083000
CY2019Q3	wsbc	Interest Expenses InterestExpenses	21228000
CY2019Q4	wsbc	Interest Expenses InterestExpenses	21345000
CY2019	wsbc	Interest Expenses InterestExpenses	84349000
CY2019Q1	wsbc	Net Interest Income NetInterestIncome	98361000
CY2019Q2	wsbc	Net Interest Income NetInterestIncome	98460000
CY2019Q3	wsbc	Net Interest Income NetInterestIncome	96120000
CY2019Q4	wsbc	Net Interest Income NetInterestIncome	106964000
CY2019	wsbc	Net Interest Income NetInterestIncome	399904000
CY2019Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	2507000
CY2019Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	2747000
CY2019Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	4121000
CY2019Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	1824000
CY2019	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	11198000
CY2019Q1	wsbc	Net Interest Income After Provision For Credit Losses NetInterestIncomeAfterProvisionForCreditLosses	95854000
CY2019Q2	wsbc	Net Interest Income After Provision For Credit Losses NetInterestIncomeAfterProvisionForCreditLosses	95713000
CY2019Q3	wsbc	Net Interest Income After Provision For Credit Losses NetInterestIncomeAfterProvisionForCreditLosses	91999000
CY2019Q4	wsbc	Net Interest Income After Provision For Credit Losses NetInterestIncomeAfterProvisionForCreditLosses	105140000
CY2019	wsbc	Net Interest Income After Provision For Credit Losses NetInterestIncomeAfterProvisionForCreditLosses	388706000
CY2019Q1	wsbc	Noninterest Income Excluding Net Securities Gains NoninterestIncomeExcludingNetSecuritiesGains	27116000
CY2019Q2	wsbc	Noninterest Income Excluding Net Securities Gains NoninterestIncomeExcludingNetSecuritiesGains	28247000
CY2019Q3	wsbc	Noninterest Income Excluding Net Securities Gains NoninterestIncomeExcludingNetSecuritiesGains	26715000
CY2019Q4	wsbc	Noninterest Income Excluding Net Securities Gains NoninterestIncomeExcludingNetSecuritiesGains	30318000
CY2019	wsbc	Noninterest Income Excluding Net Securities Gains NoninterestIncomeExcludingNetSecuritiesGains	112396000
CY2019Q1	us-gaap	Gain Loss On Investments GainLossOnInvestments	657000
CY2019Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	2909000
CY2019Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	235000
CY2019Q4	us-gaap	Gain Loss On Investments GainLossOnInvestments	520000
CY2019	us-gaap	Gain Loss On Investments GainLossOnInvestments	4320000
CY2019Q1	us-gaap	Noninterest Expense NoninterestExpense	74432000
CY2019Q2	us-gaap	Noninterest Expense NoninterestExpense	71952000
CY2019Q3	us-gaap	Noninterest Expense NoninterestExpense	73268000
CY2019Q4	us-gaap	Noninterest Expense NoninterestExpense	92556000
CY2019	us-gaap	Noninterest Expense NoninterestExpense	312208000
CY2019Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	49195000
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	54917000
CY2019Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	43422000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	193214000
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8858000
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10103000
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8334000
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7046000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34341000
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	40337000
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	44814000
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	37347000
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	36376000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	158873000
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.74
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.82
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.68
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.60
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.83
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.74
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.82
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.68
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.60
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.83

Files In Submission

Name	View Source	Status
0001564590-21-009469-index-headers.html	Edgar Link	pending
0001564590-21-009469-index.html	Edgar Link	pending
0001564590-21-009469.txt	Edgar Link	pending
0001564590-21-009469-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
gvq4o1dyvemg000001.jpg	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
R103.htm	Edgar Link	pending
R104.htm	Edgar Link	pending
R105.htm	Edgar Link	pending
R106.htm	Edgar Link	pending
R107.htm	Edgar Link	pending
R108.htm	Edgar Link	pending
R109.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R110.htm	Edgar Link	pending
R111.htm	Edgar Link	pending
R112.htm	Edgar Link	pending
R113.htm	Edgar Link	pending
R114.htm	Edgar Link	pending
R115.htm	Edgar Link	pending
R116.htm	Edgar Link	pending
R117.htm	Edgar Link	pending
R118.htm	Edgar Link	pending
R119.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R120.htm	Edgar Link	pending
R121.htm	Edgar Link	pending
R122.htm	Edgar Link	pending
R123.htm	Edgar Link	pending
R124.htm	Edgar Link	pending
R125.htm	Edgar Link	pending
R126.htm	Edgar Link	pending
R127.htm	Edgar Link	pending
R128.htm	Edgar Link	pending
R129.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R130.htm	Edgar Link	pending
R131.htm	Edgar Link	pending
R132.htm	Edgar Link	pending
R133.htm	Edgar Link	pending
R134.htm	Edgar Link	pending
R135.htm	Edgar Link	pending
R136.htm	Edgar Link	pending
R137.htm	Edgar Link	pending
R138.htm	Edgar Link	pending
R139.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R140.htm	Edgar Link	pending
R141.htm	Edgar Link	pending
R142.htm	Edgar Link	pending
R143.htm	Edgar Link	pending
R144.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
wsbc-10k_20201231.htm	Edgar Link	pending
wsbc-10k_20201231_htm.xml	Edgar Link	completed
wsbc-20201231.xsd	Edgar Link	pending
wsbc-20201231_cal.xml	Edgar Link	unprocessable
wsbc-20201231_def.xml	Edgar Link	unprocessable
wsbc-20201231_lab.xml	Edgar Link	unprocessable
wsbc-20201231_pre.xml	Edgar Link	unprocessable
wsbc-ex21_11.htm	Edgar Link	pending
wsbc-ex23_12.htm	Edgar Link	pending
wsbc-ex24_8.htm	Edgar Link	pending
wsbc-ex311_9.htm	Edgar Link	pending
wsbc-ex312_6.htm	Edgar Link	pending
wsbc-ex321_10.htm	Edgar Link	pending
wsbc-ex47_7.htm	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$WSBC
WESBANCO INC Stock $wsbc

2020 Q4 Form 10-K Financial Statement

#000156459021009469 Filed on February 26, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WSBC WESBANCO INC Stock $wsbc

2020 Q4 Form 10-K Financial Statement

#000156459021009469 Filed on February 26, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WSBC
WESBANCO INC Stock $wsbc