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Summary of Significant Accounting Policies Narrative (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
subsidiarytrusts
Dec. 31, 2013
Dec. 31, 2012
Property, Plant and Equipment [Line Items]      
Number of banks owned 6fult_NumberOfBanksOwned    
Days past due for nonaccrual status 90 days    
Period for which change in loans are evaluated individually for impairment quarterly 12 months    
Individual impairment, outstanding commitment threshold $ 1,000,000.0fult_FinancingReceivableIndividuallyEvaluatedforImpairmentMinimumOutstandingBalanceforReview    
Financing Receivable, Obtaining Certified Thrid-party Appraisal For Impaired Loans, Period 12 months    
Collective impairment review, outstanding commitment threshold (less than $1.0 million) 1,000,000.0fult_FinancingReceivableFinancingReceivableCollectivelyEvaluatedforImpairmentMaximumOutstandingBalanceforReview    
Impaired loans with principal balances 81.00%fult_ImpairedLoansWithPrincipalBalancesApproximatelyInPercentage 79.00%fult_ImpairedLoansWithPrincipalBalancesApproximatelyInPercentage  
Impaired loans balances, real estate as collateral 1,000,000fult_ImpairedLoansBalancesRealEstateAsCollateral    
Threshold of companies current loan to value ratio of original appraisals used 70.00%fult_PercentageThresholdOfCompaniesCurrentLoanToValueRatioOfOriginalAppraisalsUsed    
Foreign currency open position 500,000,000fult_ForeignCurrencyOpenPosition    
Variable Interest Entity [Abstract]      
Subsidiary trusts owned by parent 4fult_NumberOfSubsidiaryTrustsOwnedByParent    
Amortization period of LIH investments 10 years    
Income taxes 52,606,000us-gaap_IncomeTaxExpenseBenefit 51,085,000us-gaap_IncomeTaxExpenseBenefit 57,601,000us-gaap_IncomeTaxExpenseBenefit
LIH Low Income Housing      
Variable Interest Entity [Abstract]      
Income taxes (10,400,000)us-gaap_IncomeTaxExpenseBenefit
/ us-gaap_InvestmentTypeAxis
= fult_LihLowIncomeHousingMember		 (10,300,000)us-gaap_IncomeTaxExpenseBenefit
/ us-gaap_InvestmentTypeAxis
= fult_LihLowIncomeHousingMember		 (9,600,000)us-gaap_IncomeTaxExpenseBenefit
/ us-gaap_InvestmentTypeAxis
= fult_LihLowIncomeHousingMember
Other Assets      
Variable Interest Entity [Abstract]      
Investments in low income housing $ 155,600,000fult_InvestmentsLowIncomeHousing
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherAssetsMember		 $ 129,200,000fult_InvestmentsLowIncomeHousing
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherAssetsMember		  
Building and Building Improvements      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, useful life 50 years    
Furniture and Fixtures      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, useful life 8 years    
Equipment      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, useful life 5 years    
Consumer Loan      
Property, Plant and Equipment [Line Items]      
Number of days closed end consumer loans are charged off when they become past due 120 days    
Number of days open end consumer loans are charged off when they become past due 180 days