Fair Value (Assets Measured at Fair Value on Nonrecurring Basis) (Detail) (USD $)
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3 Months Ended |
12 Months Ended |
Mar. 31, 2015
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Dec. 31, 2014
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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Assets, fair value disclosure, nonrecurring |
$ 11,232,000us-gaap_AssetsFairValueDisclosureNonrecurring |
$ 11,014,000us-gaap_AssetsFairValueDisclosureNonrecurring |
Fair value measured on nonrecurring basis losses |
15,359,000sasr_FairValueMeasuredOnNonrecurringBasisLosses |
13,646,000sasr_FairValueMeasuredOnNonrecurringBasisLosses |
Impaired loans |
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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Assets, fair value disclosure, nonrecurring |
8,005,000us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_ImpairedLoansMember |
7,819,000us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_ImpairedLoansMember |
Fair value measured on nonrecurring basis losses |
15,606,000sasr_FairValueMeasuredOnNonrecurringBasisLosses / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_ImpairedLoansMember |
13,893,000sasr_FairValueMeasuredOnNonrecurringBasisLosses / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_ImpairedLoansMember |
Other real estate owned |
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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Assets, fair value disclosure, nonrecurring |
3,227,000us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_OtherRealEstateOwnedMember |
3,195,000us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_OtherRealEstateOwnedMember |
Fair value measured on nonrecurring basis losses |
(247,000)sasr_FairValueMeasuredOnNonrecurringBasisLosses / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_OtherRealEstateOwnedMember |
(247,000)sasr_FairValueMeasuredOnNonrecurringBasisLosses / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_OtherRealEstateOwnedMember |
Quoted Prices in Active Markets for Identical Assets (Level 1) |
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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Assets, fair value disclosure, nonrecurring |
0us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member |
0us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Impaired loans |
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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Assets, fair value disclosure, nonrecurring |
0us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_ImpairedLoansMember |
0us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_ImpairedLoansMember |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other real estate owned |
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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Assets, fair value disclosure, nonrecurring |
0us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_OtherRealEstateOwnedMember |
0us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_OtherRealEstateOwnedMember |
Significant Other Observable Inputs (Level 2) |
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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Assets, fair value disclosure, nonrecurring |
0us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |
0us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |
Significant Other Observable Inputs (Level 2) | Impaired loans |
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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Assets, fair value disclosure, nonrecurring |
0us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_ImpairedLoansMember |
0us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_ImpairedLoansMember |
Significant Other Observable Inputs (Level 2) | Other real estate owned |
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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Assets, fair value disclosure, nonrecurring |
0us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_OtherRealEstateOwnedMember |
0us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_OtherRealEstateOwnedMember |
Significant Unobservable Inputs (Level 3) |
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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Assets, fair value disclosure, nonrecurring |
11,232,000us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member |
11,014,000us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member |
Significant Unobservable Inputs (Level 3) | Impaired loans |
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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Assets, fair value disclosure, nonrecurring |
8,005,000us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_ImpairedLoansMember |
7,819,000us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_ImpairedLoansMember |
Significant Unobservable Inputs (Level 3) | Other real estate owned |
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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Assets, fair value disclosure, nonrecurring |
$ 3,227,000us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_OtherRealEstateOwnedMember |
$ 3,195,000us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = sasr_OtherRealEstateOwnedMember |