XML 76 R98.htm IDEA: XBRL DOCUMENT v2.4.1.9
COMMITMENTS AND CONTINGENT LIABILITIES (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Leases [Abstract]      
Rent expense $ 7,900,000us-gaap_LeaseAndRentalExpense $ 7,400,000us-gaap_LeaseAndRentalExpense $ 7,200,000us-gaap_LeaseAndRentalExpense
Future minimum lease payments [Abstract]      
2015 5,141,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent    
2016 3,887,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears    
2017 2,774,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears    
2018 1,225,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears    
2019 664,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears    
Thereafter 3,781,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter    
Total future minimum lease payments 17,472,000us-gaap_OperatingLeasesFutureMinimumPaymentsDue    
Mortgage loans serviced for others [Abstract]      
Loans serviced for investors 5,686,756,000us-gaap_ServicingAssetAtAmortizedValue 5,577,325,000us-gaap_ServicingAssetAtAmortizedValue 5,058,912,000us-gaap_ServicingAssetAtAmortizedValue
Primary Recourse Servicing Loans [Member]      
Mortgage loans serviced for others [Abstract]      
Off-balance sheet, face amount of asset 1,200,000us-gaap_FairValueDisclosureOffbalanceSheetRisksFaceAmountAsset
/ us-gaap_FinancialInstrumentAxis
= bxs_PrimaryRecourseServicingLoansMember
   
Letters of Credit [Member]      
Lending commitments [Abstract]      
Off-balance sheet, face amount of liability 101,300,000us-gaap_FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability
/ us-gaap_FinancialInstrumentAxis
= us-gaap_FinancialStandbyLetterOfCreditMember
   
Interim Mortgage Financing, Construction Credit, Credit Card and Revolving Line of Credit Arrangements [Member]      
Lending commitments [Abstract]      
Off-balance sheet, face amount of liability $ 2,300,000,000us-gaap_FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommitmentsToExtendCreditMember