XML 91 R123.htm IDEA: XBRL DOCUMENT v2.4.1.9
Fair Value (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Assets    
Securities available for sale $ 806,766us-gaap_AvailableForSaleSecurities $ 786,791us-gaap_AvailableForSaleSecurities
Government-sponsored entities debt    
Assets    
Securities available for sale 148,197us-gaap_AvailableForSaleSecurities
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142,994us-gaap_AvailableForSaleSecurities
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= us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
State and municipal obligations    
Assets    
Securities available for sale 137,581us-gaap_AvailableForSaleSecurities
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= us-gaap_USStatesAndPoliticalSubdivisionsMember
140,651us-gaap_AvailableForSaleSecurities
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= us-gaap_USStatesAndPoliticalSubdivisionsMember
Common Stock    
Assets    
Securities available for sale 3,042us-gaap_AvailableForSaleSecurities
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= us-gaap_CommonStockMember
3,667us-gaap_AvailableForSaleSecurities
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= us-gaap_CommonStockMember
Fair Value.    
Assets    
Mortgage servicing rights 21,601ssb_ResidentialMortgageServicingRightsFairValueDisclosure
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20,729ssb_ResidentialMortgageServicingRightsFairValueDisclosure
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Significant Unobservable Inputs (Level 3)    
Assets    
Mortgage servicing rights 21,601ssb_ResidentialMortgageServicingRightsFairValueDisclosure
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= us-gaap_FairValueInputsLevel3Member
20,729ssb_ResidentialMortgageServicingRightsFairValueDisclosure
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Parent company    
Assets    
Securities available for sale 535us-gaap_AvailableForSaleSecurities
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= us-gaap_ParentCompanyMember
519us-gaap_AvailableForSaleSecurities
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= us-gaap_ParentCompanyMember
Recurring basis    
Liabilities    
Fair Value Hierarchy Transfers Amount 0ssb_FairValueHierarchyTransfersAmount
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0ssb_FairValueHierarchyTransfersAmount
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Changes in fair value of assets    
Transfers between the fair value hierarchy levels 0ssb_FairValueHierarchyTransfersAmount
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= us-gaap_FairValueMeasurementsRecurringMember
0ssb_FairValueHierarchyTransfersAmount
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= us-gaap_FairValueMeasurementsRecurringMember
Recurring basis | Fair Value.    
Assets    
Derivative financial instruments 3,317us-gaap_InterestRateDerivativeAssetsAtFairValue
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= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
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701us-gaap_InterestRateDerivativeAssetsAtFairValue
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Securities available for sale 806,766us-gaap_AvailableForSaleSecurities
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= us-gaap_EstimateOfFairValueFairValueDisclosureMember
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= us-gaap_FairValueMeasurementsRecurringMember
786,791us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
Mortgage servicing rights 21,601ssb_ResidentialMortgageServicingRightsFairValueDisclosure
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= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
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20,729ssb_ResidentialMortgageServicingRightsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
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Fair value of Assets, Total 831,684us-gaap_AssetsFairValueDisclosure
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808,221us-gaap_AssetsFairValueDisclosure
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Liabilities    
Derivative financial instruments 1,028us-gaap_InterestRateDerivativeLiabilitiesAtFairValue
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= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
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1,857us-gaap_InterestRateDerivativeLiabilitiesAtFairValue
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= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
Recurring basis | Fair Value. | Government-sponsored entities debt    
Assets    
Securities available for sale 148,197us-gaap_AvailableForSaleSecurities
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= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
142,994us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
Recurring basis | Fair Value. | State and municipal obligations    
Assets    
Securities available for sale 137,581us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
140,651us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
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Recurring basis | Fair Value. | Mortgage-backed securities    
Assets    
Securities available for sale 517,946us-gaap_AvailableForSaleSecurities
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= us-gaap_EstimateOfFairValueFairValueDisclosureMember
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/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_MortgageBackedSecuritiesMember
499,479us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
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= us-gaap_FairValueMeasurementsRecurringMember
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= us-gaap_MortgageBackedSecuritiesMember
Recurring basis | Fair Value. | Common Stock    
Assets    
Securities available for sale 3,042us-gaap_AvailableForSaleSecurities
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= us-gaap_EstimateOfFairValueFairValueDisclosureMember
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3,667us-gaap_AvailableForSaleSecurities
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= us-gaap_CommonStockMember
Recurring basis | Quoted Prices In Active Markets for Identical Assets (Level 1)    
Assets    
Securities available for sale 2,817us-gaap_AvailableForSaleSecurities
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3,442us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
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Fair value of Assets, Total 2,817us-gaap_AssetsFairValueDisclosure
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3,442us-gaap_AssetsFairValueDisclosure
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/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
Recurring basis | Quoted Prices In Active Markets for Identical Assets (Level 1) | Common Stock    
Assets    
Securities available for sale 2,817us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
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= us-gaap_CommonStockMember
3,442us-gaap_AvailableForSaleSecurities
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= us-gaap_FairValueMeasurementsRecurringMember
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= us-gaap_CommonStockMember
Recurring basis | Significant Other Observable Inputs (Level 2)    
Assets    
Derivative financial instruments 3,317us-gaap_InterestRateDerivativeAssetsAtFairValue
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= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
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701us-gaap_InterestRateDerivativeAssetsAtFairValue
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= us-gaap_FairValueInputsLevel2Member
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= us-gaap_FairValueMeasurementsRecurringMember
Securities available for sale 803,949us-gaap_AvailableForSaleSecurities
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= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
783,349us-gaap_AvailableForSaleSecurities
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
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Fair value of Assets, Total 807,266us-gaap_AssetsFairValueDisclosure
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784,050us-gaap_AssetsFairValueDisclosure
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Liabilities    
Derivative financial instruments 1,028us-gaap_InterestRateDerivativeLiabilitiesAtFairValue
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= us-gaap_FairValueInputsLevel2Member
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1,857us-gaap_InterestRateDerivativeLiabilitiesAtFairValue
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= us-gaap_FairValueInputsLevel2Member
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Recurring basis | Significant Other Observable Inputs (Level 2) | Government-sponsored entities debt    
Assets    
Securities available for sale 148,197us-gaap_AvailableForSaleSecurities
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= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
142,994us-gaap_AvailableForSaleSecurities
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/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
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= us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
Recurring basis | Significant Other Observable Inputs (Level 2) | State and municipal obligations    
Assets    
Securities available for sale 137,581us-gaap_AvailableForSaleSecurities
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= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
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140,651us-gaap_AvailableForSaleSecurities
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Recurring basis | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities    
Assets    
Securities available for sale 517,946us-gaap_AvailableForSaleSecurities
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= us-gaap_FairValueInputsLevel2Member
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499,479us-gaap_AvailableForSaleSecurities
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Recurring basis | Significant Other Observable Inputs (Level 2) | Common Stock    
Assets    
Securities available for sale 225us-gaap_AvailableForSaleSecurities
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= us-gaap_FairValueInputsLevel2Member
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225us-gaap_AvailableForSaleSecurities
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Recurring basis | Significant Unobservable Inputs (Level 3)    
Assets    
Mortgage servicing rights 21,601ssb_ResidentialMortgageServicingRightsFairValueDisclosure
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20,729ssb_ResidentialMortgageServicingRightsFairValueDisclosure
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Fair value of Assets, Total 21,601us-gaap_AssetsFairValueDisclosure
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20,729us-gaap_AssetsFairValueDisclosure
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Changes in fair value of assets    
Fair value of assets at the beginning of the period 20,729us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
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3,851us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
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Mortgage and other loan income (3,999)ssb_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetMortgageAndOtherLoanIncome
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172ssb_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetMortgageAndOtherLoanIncome
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Acquired in the First Financial acquisition   19,156us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
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Purchases, issuances and settlements, net 4,871us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements
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(3,851)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements
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Transfers in and/or out of level 3   1,401us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
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Fair value of assets at the end of the period 21,601us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
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20,729us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
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Unrealized losses included in accumulated other comprehensive income related to Level 3 financial assets and liabilities $ 0us-gaap_AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
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$ 0us-gaap_AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
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