Credit Quality Assessment (Impaired Loans by Portfolio) (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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Financing Receivable Impaired [Line Items] |
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Average impaired loans for the period |
$ 30,312,000us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment |
$ 34,331,000us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment |
Contractual interest income due on impaired loans during the period |
698,000sasr_LoansAndLeasesReceivableImpairedContractualInterestIncome |
2,339,000sasr_LoansAndLeasesReceivableImpairedContractualInterestIncome |
Interest income on impaired loans recognized on a cash basis |
190,000us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod |
773,000us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod |
Interest income on impaired loans recognized on an accrual basis |
66,000us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod |
280,000us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod |
Commercial |
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Financing Receivable Impaired [Line Items] |
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Average impaired loans for the period |
4,377,000us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialLoanMember |
5,308,000us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialLoanMember |
Contractual interest income due on impaired loans during the period |
135,000sasr_LoansAndLeasesReceivableImpairedContractualInterestIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialLoanMember |
311,000sasr_LoansAndLeasesReceivableImpairedContractualInterestIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialLoanMember |
Interest income on impaired loans recognized on a cash basis |
54,000us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialLoanMember |
252,000us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialLoanMember |
Interest income on impaired loans recognized on an accrual basis |
14,000us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialLoanMember |
63,000us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialLoanMember |
All Other |
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Financing Receivable Impaired [Line Items] |
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Average impaired loans for the period |
3,827,000us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_AllOtherMember |
7,082,000us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_AllOtherMember |
Contractual interest income due on impaired loans during the period |
57,000sasr_LoansAndLeasesReceivableImpairedContractualInterestIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_AllOtherMember |
87,000sasr_LoansAndLeasesReceivableImpairedContractualInterestIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_AllOtherMember |
Interest income on impaired loans recognized on a cash basis |
22,000us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_AllOtherMember |
60,000us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_AllOtherMember |
Interest income on impaired loans recognized on an accrual basis |
25,000us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_AllOtherMember |
106,000us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_AllOtherMember |
Commercial Real Estate Portfolio Segment | Commercial Acquisition, Development and Construction |
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Financing Receivable Impaired [Line Items] |
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Average impaired loans for the period |
1,914,000us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_AcquisitionDevelopmentAndConstructionMortgageLoansMember |
3,651,000us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_AcquisitionDevelopmentAndConstructionMortgageLoansMember |
Contractual interest income due on impaired loans during the period |
87,000sasr_LoansAndLeasesReceivableImpairedContractualInterestIncome / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_AcquisitionDevelopmentAndConstructionMortgageLoansMember |
352,000sasr_LoansAndLeasesReceivableImpairedContractualInterestIncome / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_AcquisitionDevelopmentAndConstructionMortgageLoansMember |
Interest income on impaired loans recognized on a cash basis |
0us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_AcquisitionDevelopmentAndConstructionMortgageLoansMember |
39,000us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_AcquisitionDevelopmentAndConstructionMortgageLoansMember |
Interest income on impaired loans recognized on an accrual basis |
0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_AcquisitionDevelopmentAndConstructionMortgageLoansMember |
0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_AcquisitionDevelopmentAndConstructionMortgageLoansMember |
Commercial Real Estate Portfolio Segment | Commercial Investor Real Estate |
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Financing Receivable Impaired [Line Items] |
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Average impaired loans for the period |
11,237,000us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_InvestorMember |
9,327,000us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_InvestorMember |
Contractual interest income due on impaired loans during the period |
220,000sasr_LoansAndLeasesReceivableImpairedContractualInterestIncome / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_InvestorMember |
730,000sasr_LoansAndLeasesReceivableImpairedContractualInterestIncome / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_InvestorMember |
Interest income on impaired loans recognized on a cash basis |
11,000us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_InvestorMember |
78,000us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_InvestorMember |
Interest income on impaired loans recognized on an accrual basis |
27,000us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_InvestorMember |
111,000us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_InvestorMember |
Commercial Real Estate Portfolio Segment | Commercial Owner Occupied Real Estate |
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Financing Receivable Impaired [Line Items] |
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Average impaired loans for the period |
8,958,000us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_CommercialMortgageLoansOwnerOccupiedMember |
8,963,000us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_CommercialMortgageLoansOwnerOccupiedMember |
Contractual interest income due on impaired loans during the period |
199,000sasr_LoansAndLeasesReceivableImpairedContractualInterestIncome / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_CommercialMortgageLoansOwnerOccupiedMember |
859,000sasr_LoansAndLeasesReceivableImpairedContractualInterestIncome / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_CommercialMortgageLoansOwnerOccupiedMember |
Interest income on impaired loans recognized on a cash basis |
103,000us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_CommercialMortgageLoansOwnerOccupiedMember |
344,000us-gaap_ImpairedFinancingReceivableInterestIncomeCashBasisMethod / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_CommercialMortgageLoansOwnerOccupiedMember |
Interest income on impaired loans recognized on an accrual basis |
$ 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_CommercialMortgageLoansOwnerOccupiedMember |
$ 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod / sasr_FinancingReceivableInformationByPortfolioSegmentsAxis = us-gaap_CommercialPortfolioSegmentMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sasr_CommercialMortgageLoansOwnerOccupiedMember |