$SASR
Sandy Spring Bancorp Inc Stock $sasr

$sasr Overview Financials Valuation SEC Filings Company Website

2019 Form 10-K Financial Statement

#000082441020000004 Filed on February 21, 2020

Income Statement

Concept	2019	2018 Q4	2018 Q3
Revenue	$347.9M	$85.61M	$84.37M
YoY Change	7.34%	68.93%	70.15%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$13.40M	$3.200M	$3.200M
YoY Change	7.2%	52.38%	68.42%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$82.56M	$19.46M	$16.78M
YoY Change	29.74%	170.91%	143.51%
% of Operating Profit
Other Income/Expense, Net	$9.910M
YoY Change	9.76%
Pretax Income	$152.9M	$34.11M	$38.34M
YoY Change	15.2%	68.84%	64.43%
Income Tax	$36.43M	$8.539M	$9.107M
% Of Pretax Income	23.83%	25.04%	23.75%
Net Earnings	$116.4M	$25.57M	$29.23M
YoY Change	15.44%	209.25%	93.74%
Net Earnings / Revenue	33.47%	29.86%	34.65%
Basic Earnings Per Share	$3.25	$0.72	$0.82
Diluted Earnings Per Share	$3.25	$0.72	$0.82
COMMON SHARES
Basic Shares Outstanding	35.80M shares	35.52M shares	35.52M shares
Diluted Shares Outstanding	35.85M shares		35.74M shares

Balance Sheet

Concept	2019	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments		$174.9M
YoY Change		10.66%
Cash & Equivalents		$101.5M	$78.58M
Short-Term Investments		$73.39M
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$128.0M	$61.94M	$62.00M
YoY Change	106.45%	13.11%	14.59%
Goodwill		$347.1M	$345.4M
YoY Change		304.75%	302.74%
Intangibles		$9.788M	$10.33M
YoY Change		1587.59%	1609.77%
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$8.629B	$8.243B	$8.035B
YoY Change	4.68%	51.35%	50.61%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$42.00M	$47.00M	$47.00M
YoY Change	-10.64%	38.24%	34.29%
Accrued Expenses	$77.00M
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$214.0M	$327.0M	$143.0M
YoY Change	-34.56%	174.79%	-2.72%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$119.0M	$47.00M	$47.00M
YoY Change	153.19%	38.24%	34.29%
LONG-TERM LIABILITIES
Long-Term Debt	$209.0M	$37.00M	$37.00M
YoY Change	464.86%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$209.0M	$37.00M	$37.00M
YoY Change	464.86%
TOTAL LIABILITIES
Total Short-Term Liabilities	$119.0M	$47.00M	$47.00M
Total Long-Term Liabilities	$209.0M	$37.00M	$37.00M
Total Liabilities	$7.496B	$7.175B	$6.992B
YoY Change	4.47%	46.95%	46.57%
SHAREHOLDERS EQUITY
Retained Earnings		$441.6M	$426.0M
YoY Change		16.66%	13.14%
Common Stock		$642.1M	$641.1M
YoY Change		234.11%	234.9%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.133B	$1.068B	$1.043B
YoY Change
Total Liabilities & Shareholders Equity	$8.629B	$8.243B	$8.035B
YoY Change	4.68%	51.35%	50.61%

Cashflow Statement

Concept	2019	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income	$116.4M	$25.57M	$29.23M
YoY Change	15.44%	209.25%	93.74%
Depreciation, Depletion And Amortization	$13.40M	$3.200M	$3.200M
YoY Change	7.2%	52.38%	68.42%
Cash From Operating Activities	$99.94M	$43.70M	$49.50M
YoY Change	-32.31%	255.28%	194.64%
INVESTING ACTIVITIES
Capital Expenditures	$5.148M	-$1.900M	-$1.700M
YoY Change	-50.5%	-32.14%	-22.73%
Acquisitions	$0.00
YoY Change
Other Investing Activities	-$236.1M	-$192.7M	-$120.5M
YoY Change	-52.26%	80.77%	236.59%
Cash From Investing Activities	-$241.3M	-$194.5M	-$122.3M
YoY Change	-52.22%	77.63%	222.69%
FINANCING ACTIVITIES
Cash Dividend Paid	$42.27M
YoY Change	7.63%
Common Stock Issuance & Retirement, Net	$22.85M
YoY Change	-1738.06%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$186.0M	173.6M	-143.4M
YoY Change	-46.31%	61.49%	-409.05%
NET CHANGE
Cash From Operating Activities	$99.94M	43.70M	49.50M
Cash From Investing Activities	-$241.3M	-194.5M	-122.3M
Cash From Financing Activities	$186.0M	173.6M	-143.4M
Net Change In Cash	$44.62M	22.80M	-216.2M
YoY Change	-504.96%	121.36%	-954.55%
FREE CASH FLOW
Cash From Operating Activities	$99.94M	$43.70M	$49.50M
Capital Expenditures	$5.148M	-$1.900M	-$1.700M
Free Cash Flow	$94.80M	$45.60M	$51.20M
YoY Change	-30.93%	201.99%	169.47%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	35530734	shares
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2018Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	0	USD
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	34970370	shares
CY2019Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	0	USD
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	sasr	Maximum Percentage Of Asset Allocated To Control Market Volatility MaximumPercentageOfAssetAllocatedToControlMarketVolatility	0.7	pure
CY2019	sasr	Maximum Percentage Of Market Value For Initial Acquisition Of Equity Portion MaximumPercentageOfMarketValueForInitialAcquisitionOfEquityPortion	0.05	pure
CY2019	sasr	Minimum Percentage Of Value Of Equity Portion For Sale MinimumPercentageOfValueOfEquityPortionForSale	0.1	pure
CY2019	sasr	Maximum Percentage Of Corporate Debt Issuable To Single Issuer MaximumPercentageOfCorporateDebtIssuableToSingleIssuer	0.1	pure
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P0Y
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0000824410
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Entity File Number EntityFileNumber	0-19065
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3000	shares
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	7976000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	6089000	USD
CY2017	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	142877000	USD
CY2017	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	149367000	USD
CY2017	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	3403000	USD
CY2017	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-1007000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-5174000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	125028000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	44067000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	45257000	USD
CY2018Q4	us-gaap	Foreclosed Assets ForeclosedAssets	1584000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	99943000	USD
CY2018	sasr	Extension Fees ExtensionFees	873000	USD
CY2017	sasr	Extension Fees ExtensionFees	568000	USD
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
CY2019Q4	us-gaap	Foreclosed Assets ForeclosedAssets	1482000	USD
CY2019	dei	Entity Registrant Name EntityRegistrantName	SANDY SPRING BANCORP, INC.
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	52-1532952
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	17801 Georgia Avenue
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Olney
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	MD
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	20832
CY2019	dei	City Area Code CityAreaCode	301
CY2019	dei	Local Phone Number LocalPhoneNumber	774-6400
CY2019	dei	Security12b Title Security12bTitle	Common Stock, par value $1.00 per share
CY2019	dei	Trading Symbol TradingSymbol	SASR
CY2019	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019Q2	dei	Entity Public Float EntityPublicFloat	1210000000	USD
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CY2018Q4	us-gaap	Federal Funds Sold FederalFundsSold	609000	USD
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CY2019Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	53701000	USD
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CY2019Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	51803000	USD
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CY2019	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	260624000	USD
CY2018	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	251422000	USD
CY2017	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	165791000	USD
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	77000	USD
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CY2019	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	6612000	USD
CY2018	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	6158000	USD
CY2017	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	6231000	USD
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	3165000	USD
CY2018	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	4327000	USD
CY2017	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	2403000	USD
CY2019	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	8780000	USD
CY2018	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	7126000	USD
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CY2019	us-gaap	Noninterest Income NoninterestIncome	71322000	USD
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CY2019	us-gaap	Occupancy Net OccupancyNet	19470000	USD
CY2018	us-gaap	Occupancy Net OccupancyNet	18352000	USD
CY2017	us-gaap	Occupancy Net OccupancyNet	13053000	USD
CY2019	us-gaap	Equipment Expense EquipmentExpense	10720000	USD
CY2018	us-gaap	Equipment Expense EquipmentExpense	9335000	USD
CY2017	us-gaap	Equipment Expense EquipmentExpense	7015000	USD
CY2019	us-gaap	Marketing Expense MarketingExpense	4456000	USD
CY2018	us-gaap	Marketing Expense MarketingExpense	3924000	USD
CY2017	us-gaap	Marketing Expense MarketingExpense	3119000	USD
CY2019	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	7567000	USD
CY2018	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	6603000	USD
CY2017	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	5486000	USD
CY2019	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	2260000	USD
CY2018	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	5095000	USD
CY2017	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	3305000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1946000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2162000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	101000	USD
CY2019	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1312000	USD
CY2018	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	11766000	USD
CY2017	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	4252000	USD
CY2019	us-gaap	Professional Fees ProfessionalFees	6978000	USD
CY2018	us-gaap	Professional Fees ProfessionalFees	6056000	USD
CY2017	us-gaap	Professional Fees ProfessionalFees	4492000	USD
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	20426000	USD
CY2018	us-gaap	Other Noninterest Expense OtherNoninterestExpense	19492000	USD
CY2017	us-gaap	Other Noninterest Expense OtherNoninterestExpense	15144000	USD
CY2019	us-gaap	Noninterest Expense NoninterestExpense	179085000	USD
CY2018	us-gaap	Noninterest Expense NoninterestExpense	179783000	USD
CY2017	us-gaap	Noninterest Expense NoninterestExpense	129099000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	152861000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	132688000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	87935000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36428000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	31824000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34726000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	116433000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	100864000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	53209000	USD
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.25
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.82
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.20
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.25
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.82
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.20
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.18
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.10
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.04
CY2019	us-gaap	Net Income Loss NetIncomeLoss	116433000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	100864000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	53209000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	14429000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-9925000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-294000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	3742000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-2600000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-108000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	77000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	190000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	1273000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	20000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	50000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	504000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	10630000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-7465000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-955000	USD
CY2019	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-1327000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	1175000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	135000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	1202000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	383000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	90000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	490000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	792000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	45000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	712000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	11422000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-7420000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-243000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	127855000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	93444000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	52966000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	116433000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	100864000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	53209000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	13398000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	12516000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4684000	USD
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	9023000	USD
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2977000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	3042000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	2645000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	2164000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1719000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	5655000	USD
CY2019	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	887216000	USD
CY2018	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	416337000	USD
CY2019	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	869294000	USD
CY2018	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	441023000	USD
CY2019	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	13006000	USD
CY2018	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	11699000	USD
CY2019	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-173000	USD
CY2018	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-200000	USD
CY2017	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	68000	USD
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	77000	USD
CY2018	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	190000	USD
CY2017	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	1273000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-269000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	0	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	0	USD
CY2019	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	-92000	USD
CY2018	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	-299000	USD
CY2017	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	-1809000	USD
CY2018	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	2622000	USD
CY2017	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	891000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	3664000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-5020000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	9829000	USD
CY2019	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-5804000	USD
CY2018	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-2721000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-3970000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	703000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	721000	USD
CY2017	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	3965000000	USD
CY2019	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	2457834000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	24284000	USD
CY2018	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	5633579000	USD
CY2017	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	3989167000	USD
CY2019	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2018	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0	USD
CY2017	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	30000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1433000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1395000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1200000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	147646000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	69417000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	21586000	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	8784000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	576000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	326604000	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	161349000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	2926000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	117354000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	2251000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	199652000	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	106114000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	123762000	USD
CY2019	us-gaap	Payments To Acquire Loans And Leases Held For Investment PaymentsToAcquireLoansAndLeasesHeldForInvestment	134012000	USD
CY2018	us-gaap	Payments To Acquire Loans And Leases Held For Investment PaymentsToAcquireLoansAndLeasesHeldForInvestment	641521000	USD
CY2017	us-gaap	Payments To Acquire Loans And Leases Held For Investment PaymentsToAcquireLoansAndLeasesHeldForInvestment	427773000	USD
CY2019	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	324000	USD
CY2018	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	1151000	USD
CY2017	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	1275000	USD
CY2019	us-gaap	Proceeds From Sale Of Loans And Leases Held For Investment ProceedsFromSaleOfLoansAndLeasesHeldForInvestment	0	USD
CY2018	us-gaap	Proceeds From Sale Of Loans And Leases Held For Investment ProceedsFromSaleOfLoansAndLeasesHeldForInvestment	59945000	USD
CY2017	us-gaap	Proceeds From Sale Of Loans And Leases Held For Investment ProceedsFromSaleOfLoansAndLeasesHeldForInvestment	40031000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-32487000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5148000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	10401000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	7441000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-241276000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-505004000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-392347000	USD
CY2019	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	525439000	USD
CY2018	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	340376000	USD
CY2017	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	386118000	USD
CY2019	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-113824000	USD
CY2018	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	201184000	USD
CY2017	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-5760000	USD
CY2019	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	2298000000	USD
CY2018	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	5477000000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	760000	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	952000	USD
CY2019	us-gaap	Payments For Repurchase Of Warrants PaymentsForRepurchaseOfWarrants	24284000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2645000	USD
CY2018	us-gaap	Stock Issued During Period Shares Acquisitions StockIssuedDuringPeriodSharesAcquisitions	11446197	shares
CY2019	sasr	Stock Issued During Period Value Director Stock Purchase Plan StockIssuedDuringPeriodValueDirectorStockPurchasePlan	30000	USD
CY2018	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	446640000	USD
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	20888	shares
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	441000	USD
CY2017	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	17578	shares
CY2018	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	28996	shares
CY2017	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	607000	USD
CY2017	us-gaap	Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures	47064	shares
CY2018	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	954000	USD
CY2018	us-gaap	Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures	38360	shares
CY2017	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-952000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	563816000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	100864000	USD
CY2018	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.10
CY2018	us-gaap	Dividends Common Stock DividendsCommonStock	39277000	USD
CY2018	us-gaap	Payments For Repurchase Of Warrants PaymentsForRepurchaseOfWarrants	0	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2017	us-gaap	Payments For Repurchase Of Warrants PaymentsForRepurchaseOfWarrants	0	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	42272000	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	39277000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	25134000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	185955000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	346339000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	301305000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	44622000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-11019000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-21625000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	101481000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	112500000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	134125000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	146103000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	101481000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	112500000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	84448000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	60504000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	26377000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	33795000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	25664000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	31738000	USD
CY2019	sasr	Transfer From Loans To Residential Mortgage Loans Held For Sale TransferFromLoansToResidentialMortgageLoansHeldForSale	0	USD
CY2018	sasr	Transfer From Loans To Residential Mortgage Loans Held For Sale TransferFromLoansToResidentialMortgageLoansHeldForSale	60043000	USD
CY2017	sasr	Transfer From Loans To Residential Mortgage Loans Held For Sale TransferFromLoansToResidentialMortgageLoansHeldForSale	39744000	USD
CY2019	sasr	Loans Transferred From Loans To Other Real Estate Owned LoansTransferredFromLoansToOtherRealEstateOwned	414000	USD
CY2018	sasr	Loans Transferred From Loans To Other Real Estate Owned LoansTransferredFromLoansToOtherRealEstateOwned	289000	USD
CY2017	sasr	Loans Transferred From Loans To Other Real Estate Owned LoansTransferredFromLoansToOtherRealEstateOwned	1588000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	533572000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	53209000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-243000	USD
CY2017	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.04
CY2017	us-gaap	Dividends Common Stock DividendsCommonStock	25134000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2164000	USD
CY2017	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	30567	shares
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	593000	USD
CY2018	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-760000	USD
CY2019	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	37091	shares
CY2019	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.18
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	42272000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3042000	USD
CY2018	sasr	Reclassfication Of Tax Effects From Other Comprehensive Income ReclassficationOfTaxEffectsFromOtherComprehensiveIncome	0	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1067903000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	116433000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	11422000	USD
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	15080	shares
CY2019	sasr	Stock Issued During Period Shares Director Stock Purchase Plan StockIssuedDuringPeriodSharesDirectorStockPurchasePlan	867	shares
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	334000	USD
CY2019	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1069000	USD
CY2019	us-gaap	Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures	54789	shares
CY2019	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-703000	USD
CY2019	us-gaap	Treasury Stock Retired Cost Method Amount TreasuryStockRetiredCostMethodAmount	24284000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1132974000	USD
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<p style="margin-top: 0; margin-bottom: 0; text-align: justify"><span style="font-family: 'Times New Roman', 'serif'; font-weight: bold; font-size: 10.00pt">Use of Estimates</span></p><p style="margin-top: 0; margin-bottom: 0; text-align: justify"><span style="font-family: 'Times New Roman', 'serif'; font-size: 10.00pt">The preparation of financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements, and affect the reported amounts of revenues earned and expenses incurred during the reporting period. Actual results could differ from those estimates. Estimates that could change significantly relate to the provision for loan losses and the related allowance, determination of impaired loans and the related measurement of impairment, potential impairment of goodwill or other intangible assets, valuation of investment securities and the determination of whether impaired securities are other-than-temporarily impaired, valuation of other real estate owned, valuation of share-based compensation, the assessment that a liability should be recognized with respect to any matters under litigation, the calculation of current and deferred income taxes and the actuarial projections related to pension expense and the related liability.</span></p>
CY2019	us-gaap	Derivatives Reporting Of Derivative Activity DerivativesReportingOfDerivativeActivity	<p style="margin-top: 0; margin-bottom: 0; text-align: justify"><span style="font-family: 'Times New Roman', 'serif'; font-weight: bold; font-size: 10.00pt; letter-spacing: -0.10pt">Derivative Financial Instruments</span></p><p style="margin-top: 0; margin-bottom: 0; text-align: justify"><span style="font-family: 'Times New Roman', 'serif'; font-style: italic; font-size: 10.00pt">Derivative Loan Commitments</span></p><p style="margin-top: 0; margin-bottom: 0; text-align: justify"><span style="font-family: 'Times New Roman', 'serif'; font-size: 10.00pt">Mortgage loan commitments are derivative loan commitments if the loan that will result from exercise of the commitment will be held for sale upon funding. Derivative loan commitments are recognized at fair value on the consolidated statements of condition in other assets or other liabilities with changes in their fair values recorded as a component of mortgage banking activities in the consolidated statements of income.</span></p><p style="margin-top: 0; margin-bottom: 0; text-align: justify"><span style="font-family: 'Times New Roman', 'serif'; font-size: 10.00pt"> </span></p><p style="margin-top: 0; margin-bottom: 0; text-align: justify"><span style="font-family: 'Times New Roman', 'serif'; font-size: 10.00pt">Mortgage loan commitments are issued to borrowers. Subsequent to commitment date, changes in the fair value of the loan commitment are recognized based on changes in the fair value of the underlying mortgage loan due to interest rate changes, changes in the probability the derivative loan commitment will be exercised, and the passage of time. In estimating fair value, a probability is assigned to a loan commitment based on an expectation that it will be exercised and the loan will be funded.</span></p><p style="margin-top: 0; margin-bottom: 0; text-align: justify"><span style="font-family: 'Times New Roman', 'serif'; font-size: 10.00pt"> </span></p><p style="margin-top: 0; margin-bottom: 0; text-align: justify"><span style="font-family: 'Times New Roman', 'serif'; font-style: italic; font-size: 10.00pt">Forward Loan Sale Commitments</span></p><p style="margin-top: 0; margin-bottom: 0; text-align: justify"><span style="font-family: 'Times New Roman', 'serif'; font-size: 10.00pt">Loan sales agreements are evaluated to determine whether they meet the definition of a derivative as facts and circumstances may differ significantly. If agreements qualify, to protect against the price risk inherent in derivative loan commitments, the Company utilizes both “mandatory delivery” and “best efforts” forward loan sale commitments to mitigate the risk of potential decreases in the values of loans that would result from the exercise of the derivative loan commitments. Mandatory delivery contracts are accounted for as derivative instruments. Generally, best efforts contracts also meet the definition of derivative instruments after the loan to the borrower has closed. Accordingly, forward loan sale commitments that economically hedge the closed loan inventory are recognized at fair value on the consolidated statements of condition in other assets or other liabilities with changes in their fair values recorded as a component of mortgage banking activities in the consolidated statements of income. The Company estimates the fair value of its forward loan sales commitments using a methodology similar to that used for derivative loan commitments.</span></p><p style="margin-top: 0; margin-bottom: 0; text-align: justify"><span style="font-family: 'Times New Roman', 'serif'; font-size: 10.00pt"> </span></p><p style="margin-top: 0; margin-bottom: 0; text-align: justify"><span style="font-family: 'Times New Roman', 'serif'; font-style: italic; font-size: 10.00pt">Interest Rate Swap Agreements</span></p><p style="margin-top: 0; margin-bottom: 0; text-align: justify"><span style="font-family: 'Times New Roman', 'serif'; font-size: 10.00pt">The Company enters into interest rate swaps (“swaps”) with loan customers to provide a facility to mitigate the fluctuations in the variable rate on the respective loans. These swaps are matched in exact offsetting terms to swaps that the Company enters into with an outside third party. The swaps are reported at fair value in other assets or other liabilities. The Company's swaps qualify as derivatives, but are not designated as hedging instruments, thus any net gain or loss resulting from changes in the fair value is recognized in other non-interest income. Further discussion of the Company's financial derivatives is set forth in Note 20 to the Consolidated Financial Statements.</span></p>
CY2018Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	77700000	USD
CY2018Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	85100000	USD
CY2019Q4	us-gaap	Compensating Balance Amount CompensatingBalanceAmount	105300000	USD
CY2018Q4	us-gaap	Compensating Balance Amount CompensatingBalanceAmount	70000000.0	USD
CY2019Q4	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1 AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1	50	Securities
CY2019Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	343143000	USD
CY2019Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	2756000	USD
CY2019Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	849000	USD
CY2019Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	3605000	USD
CY2018Q4	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1 AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1	223	Securities
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	580621000	USD
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	2613000	USD
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	9603000	USD
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	12216000	USD
CY2018Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Mortgage Related Securities Available For Sale Or Held For Investment PledgedFinancialInstrumentsNotSeparatelyReportedMortgageRelatedSecuritiesAvailableForSaleOrHeldForInvestment	477300000	USD
CY2019Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Mortgage Related Securities Available For Sale Or Held For Investment PledgedFinancialInstrumentsNotSeparatelyReportedMortgageRelatedSecuritiesAvailableForSaleOrHeldForInvestment	424800000	USD
CY2019Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	22559000	USD
CY2018Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	22456000	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	29244000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	50933000	USD
CY2019Q4	us-gaap	Marketable Securities MarketableSecurities	51803000	USD
CY2018Q4	us-gaap	Marketable Securities MarketableSecurities	73389000	USD
CY2019	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	14000	USD
CY2018	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	2519000	USD
CY2017	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	0	USD
CY2019	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	2000	USD
CY2018	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	2343000	USD
CY2017	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	0	USD
CY2019	sasr	Net Gains Or Losses From Calls Of Investments Available For Sale NetGainsOrLossesFromCallsOfInvestmentsAvailableForSale	65000	USD
CY2018	sasr	Net Gains Or Losses From Calls Of Investments Available For Sale NetGainsOrLossesFromCallsOfInvestmentsAvailableForSale	14000	USD
CY2017	sasr	Net Gains Or Losses From Calls Of Investments Available For Sale NetGainsOrLossesFromCallsOfInvestmentsAvailableForSale	32000	USD
CY2019	sasr	Gross Realized Gains From Sales Of Equity Securities Available For Sale GrossRealizedGainsFromSalesOfEquitySecuritiesAvailableForSale	0	USD
CY2018	sasr	Gross Realized Gains From Sales Of Equity Securities Available For Sale GrossRealizedGainsFromSalesOfEquitySecuritiesAvailableForSale	0	USD
CY2017	sasr	Gross Realized Gains From Sales Of Equity Securities Available For Sale GrossRealizedGainsFromSalesOfEquitySecuritiesAvailableForSale	1241000	USD
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	77000	USD
CY2018	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	190000	USD
CY2017	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	1273000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	1800000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	900000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	6705232000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	6571634000	USD
CY2018Q1	sasr	Business Combination Gross Amortized Cost Basis Loan Acquired BusinessCombinationGrossAmortizedCostBasisLoanAcquired	1700000000	USD
CY2018Q1	sasr	Fair Value Adjustment On Purchased Credit On Acquired Impaired Loans FairValueAdjustmentOnPurchasedCreditOnAcquiredImpairedLoans	14500000	USD
CY2018Q1	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Additions CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAdditions	4000000.0	USD
CY2018Q1	sasr	Credit Impaired Loans Acquired In Transfer Nonaccretable Difference CreditImpairedLoansAcquiredInTransferNonaccretableDifference	10500000	USD
CY2018Q1	sasr	Business Combination Gross Amortized Cost Basis Loan Acquired BusinessCombinationGrossAmortizedCostBasisLoanAcquired	1697760000	USD
CY2018Q1	sasr	Interest Rate Fair Value Adjustment On Acquired Loan Portfolio InterestRateFairValueAdjustmentOnAcquiredLoanPortfolio	15370000	USD
CY2018Q1	sasr	Fair Value Adjustments On Pools Of Homogeneous Loans Acquired FairValueAdjustmentsOnPoolsOfHomogeneousLoansAcquired	22421000	USD
CY2018Q1	sasr	Fair Value Adjustment On Purchased Credit On Acquired Impaired Loans FairValueAdjustmentOnPurchasedCreditOnAcquiredImpairedLoans	14518000	USD
CY2018Q1	sasr	Business Combination Fair Value Of Loan Portfolio Acquired BusinessCombinationFairValueOfLoanPortfolioAcquired	1676191000	USD
CY2018Q1	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Acquired During Period Contractually Required Payments Receivable At Acquisition CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodContractuallyRequiredPaymentsReceivableAtAcquisition	49412000	USD
CY2018Q1	us-gaap	Certain Loans Acquired In Transfer Nonaccretable Difference CertainLoansAcquiredInTransferNonaccretableDifference	17915000	USD
CY2018Q1	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Acquired During Period Cash Flows Expected To Be Collected At Acquisition CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodCashFlowsExpectedToBeCollectedAtAcquisition	31497000	USD
CY2018Q1	us-gaap	Certain Loans Acquired In Transfer Accretable Yield CertainLoansAcquiredInTransferAccretableYield	3988000	USD
CY2018Q1	us-gaap	Certain Loans Acquired In Transfer Accounted For As Debt Securities Acquired During Period At Acquisition At Fair Value CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue	27509000	USD
CY2018Q1	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	41900000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	26000000.0	USD
CY2019Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	12700000	USD
CY2019Q4	us-gaap	Certain Loans Acquired In Transfer Accounted For As Debt Securities Acquired During Period At Acquisition At Fair Value CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue	9900000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Accounted For As Debt Securities Acquired During Period At Acquisition At Fair Value CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue	15300000	USD
CY2018	sasr	Proceeds From Credit Impaired Loans ProceedsFromCreditImpairedLoans	12400000	USD
CY2018	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Disposals Of Loans CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans	800000	USD
CY2018	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications To Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsToNonaccretableDifference	1300000	USD
CY2019	sasr	Proceeds From Credit Impaired Loans ProceedsFromCreditImpairedLoans	5800000	USD
CY2019	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Disposals Of Loans CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans	200000	USD
CY2019	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications To Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsToNonaccretableDifference	1600000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	1279000	USD
CY2019	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Additions CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAdditions	0	USD
CY2018	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Additions CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAdditions	3988000	USD
CY2019	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	1073000	USD
CY2018	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	1860000	USD
CY2019	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Disposals Of Loans CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans	199000	USD
CY2018	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Disposals Of Loans CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans	849000	USD
CY2019Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	7000	USD
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	1279000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	54208000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	36712000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	41988000	USD
CY2019	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	4737000	USD
CY2018	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	21871000	USD
CY2017	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	6140000	USD
CY2019	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	7578000	USD
CY2018	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	4375000	USD
CY2017	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	11416000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	51367000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	54208000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	36712000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	53486000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	45257000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4684000	USD
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	9023000	USD
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2977000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2668000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1416000	USD
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2566000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	630000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	622000	USD
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	779000	USD
CY2019	sasr	Financing Receivable Allowance For Credit Losses Net Charge Offs FinancingReceivableAllowanceForCreditLossesNetChargeOffs	2038000	USD
CY2018	sasr	Financing Receivable Allowance For Credit Losses Net Charge Offs FinancingReceivableAllowanceForCreditLossesNetChargeOffs	794000	USD
CY2017	sasr	Financing Receivable Allowance For Credit Losses Net Charge Offs FinancingReceivableAllowanceForCreditLossesNetChargeOffs	1787000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	56132000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	53486000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	53486000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4684000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2668000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	630000	USD
CY2019	sasr	Financing Receivable Allowance For Credit Losses Net Charge Offs FinancingReceivableAllowanceForCreditLossesNetChargeOffs	2038000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	56132000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	6705232000	USD
CY2019Q4	sasr	Allowance For Loans And Leases To Total Loans And Leases Ratio AllowanceForLoansAndLeasesToTotalLoansAndLeasesRatio	0.0084	pure
CY2019	us-gaap	Financing Receivable Significant Purchases FinancingReceivableSignificantPurchases	13084000	USD
CY2019Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	24773000	USD
CY2019	us-gaap	Allowance For Loan And Lease Losses Loans Acquired AllowanceForLoanAndLeaseLossesLoansAcquired	0	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	5501000	USD
CY2019Q4	sasr	Percentage Of Credit Loss Allowance To Loans PercentageOfCreditLossAllowanceToLoans	0.2221	pure
CY2019Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	6667375000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	50631000	USD
CY2019	sasr	Percentage Allowance On Losses PercentageAllowanceOnLosses	0.0076	pure
CY2019	sasr	Allowance To Loans Acquired With Deteriorated Credity Quality Ratio AllowanceToLoansAcquiredWithDeterioratedCredityQualityRatio	0	pure
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	45257000	USD
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	9023000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1416000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	622000	USD
CY2018	sasr	Financing Receivable Allowance For Credit Losses Net Charge Offs FinancingReceivableAllowanceForCreditLossesNetChargeOffs	794000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	53486000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	6571634000	USD
CY2018Q4	sasr	Allowance For Loans And Leases To Total Loans And Leases Ratio AllowanceForLoansAndLeasesToTotalLoansAndLeasesRatio	0.0081	pure
CY2018Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	22210000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	4924000	USD
CY2018Q4	sasr	Percentage Of Credit Loss Allowance To Loans PercentageOfCreditLossAllowanceToLoans	0.2217	pure
CY2018Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	6523477000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	48562000	USD
CY2018	sasr	Percentage Allowance On Losses PercentageAllowanceOnLosses	0.0074	pure
CY2019Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	15333000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	12876000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	11693000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	9440000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	9334000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	9116000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	24773000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	22210000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	20809000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	5501000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	4924000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	4014000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	50631000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	48562000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	41243000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	56132000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	53486000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	45257000	USD
CY2019	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	23365000	USD
CY2018	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	20211000	USD
CY2017	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	23179000	USD
CY2019	sasr	Loans And Leases Receivable Impaired Contractual Interest Income LoansAndLeasesReceivableImpairedContractualInterestIncome	1947000	USD
CY2018	sasr	Loans And Leases Receivable Impaired Contractual Interest Income LoansAndLeasesReceivableImpairedContractualInterestIncome	2513000	USD
CY2017	sasr	Loans And Leases Receivable Impaired Contractual Interest Income LoansAndLeasesReceivableImpairedContractualInterestIncome	2314000	USD
CY2019	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	465000	USD
CY2018	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	506000	USD
CY2017	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	754000	USD
CY2019	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	169000	USD
CY2018	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	138000	USD
CY2017	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	169000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	15333000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	5501000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	9440000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	24773000	USD
CY2019	us-gaap	Other Income OtherIncome	7104000	USD
CY2018	us-gaap	Other Income OtherIncome	5642000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	34620000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	27865000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2019	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	23365000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	12876000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	4924000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	9334000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	22210000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	35121000	USD
CY2018	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	20211000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	38632000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	USD
CY2019Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	2636000	USD
CY2019Q4	sasr	Financing Receivable Recorded Investment Nonperforming FinancingReceivableRecordedInvestmentNonperforming	41268000	USD
CY2019Q4	us-gaap	Foreclosed Assets ForeclosedAssets	1482000	USD
CY2019Q4	sasr	Nonperforming Assets NonperformingAssets	42750000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	33583000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	489000	USD
CY2018Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	1942000	USD
CY2018Q4	sasr	Financing Receivable Recorded Investment Nonperforming FinancingReceivableRecordedInvestmentNonperforming	36014000	USD
CY2018Q4	us-gaap	Foreclosed Assets ForeclosedAssets	1584000	USD
CY2018Q4	sasr	Nonperforming Assets NonperformingAssets	37598000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	27748000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	38632000	USD
CY2019Q4	sasr	Loans And Leases Receivable Current LoansAndLeasesReceivableCurrent	6625768000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	6705232000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	27235000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	33583000	USD
CY2018Q4	sasr	Loans And Leases Receivable Current LoansAndLeasesReceivableCurrent	6484869000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	6571634000	USD
CY2019Q4	us-gaap	Foreclosed Assets ForeclosedAssets	1500000	USD
CY2018Q4	us-gaap	Foreclosed Assets ForeclosedAssets	1600000	USD
CY2019Q4	us-gaap	Land Land	10160000	USD
CY2018Q4	us-gaap	Land Land	10160000	USD
CY2019Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	70812000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	45497000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	40152000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	127443000	USD
CY2018Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	69620000	USD
CY2019Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	46471000	USD
CY2018Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	44802000	USD
CY2017	us-gaap	Other Income OtherIncome	4916000	USD
CY2019	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	8780000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	124582000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	68828000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	62640000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	58615000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	61942000	USD
CY2019	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	7200000	USD
CY2018	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	7200000	USD
CY2017	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	5300000	USD
CY2019	us-gaap	Lessee Operating Lease Description LesseeOperatingLeaseDescription	The Company leases real estate properties for its network of bank branches, financial centers and corporate offices. All of the Company’s leases are currently classified as operating.
CY2019	us-gaap	Lessee Operating Lease Option To Extend LesseeOperatingLeaseOptionToExtend	Most lease agreements include one or more options to renew, with renewal terms that can extend the original lease term from one to twenty years or more.
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	69300000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	76900000	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	11300000	USD
CY2019	sasr	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	8700000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	400000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	10741000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	10316000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	9995000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	10100000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	8402000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	42730000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	92284000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	15413000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	76871000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P10Y4M24D
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0328	pure
CY2019	sasr	Lease Obligations Related To Finance And Operating Leases Incurred LeaseObligationsRelatedToFinanceAndOperatingLeasesIncurred	0	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	12156000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	4315000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	7841000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	12156000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	2368000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	9788000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	347149000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	347149000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	347149000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	347149000	USD
CY2018Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	2700000	USD
CY2019Q4	us-gaap	Deposits Deposits	6440319000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	85768000	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	261381000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	347149000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2019Q4	us-gaap	Goodwill Goodwill	347149000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	1717000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1507000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1295000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	1082000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	2240000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	7841000	USD
CY2019Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1892052000	USD
CY2018Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1750319000	USD
CY2019Q4	us-gaap	Demand Deposit Accounts DemandDepositAccounts	836433000	USD
CY2018Q4	us-gaap	Demand Deposit Accounts DemandDepositAccounts	703145000	USD
CY2019Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	1839593000	USD
CY2018Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	1605024000	USD
CY2019Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	329919000	USD
CY2018Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	330231000	USD
CY2019Q4	us-gaap	Time Deposits Less Than100000 TimeDepositsLessThan100000	463431000	USD
CY2018Q4	us-gaap	Time Deposits Less Than100000 TimeDepositsLessThan100000	427421000	USD
CY2019Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	1078891000	USD
CY2018Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	1098740000	USD
CY2019Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	4548267000	USD
CY2018Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	4164561000	USD
CY2018Q4	us-gaap	Deposits Deposits	5914880000	USD
CY2019Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	1400000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	1134309000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	268813000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	107671000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	19644000	USD
CY2019Q4	sasr	Time Deposit Maturities After Year Four1 TimeDepositMaturitiesAfterYearFour1	11885000	USD
CY2019Q4	us-gaap	Time Deposits TimeDeposits	1542322000	USD
CY2019Q4	sasr	Percentageoftimedepositsof100000ormoreoftotaldeposits Percentageoftimedepositsof100000ormoreoftotaldeposits	0.168	pure
CY2019Q4	us-gaap	Contractual Maturities Time Deposits100000 Or More Three Months Or Less ContractualMaturitiesTimeDeposits100000OrMoreThreeMonthsOrLess	211627000	USD
CY2019Q4	us-gaap	Contractual Maturities Time Deposits100000 Or More Three Months Through Six Months ContractualMaturitiesTimeDeposits100000OrMoreThreeMonthsThroughSixMonths	195579000	USD
CY2019Q4	us-gaap	Contractual Maturities Time Deposits100000 Or More Six Months Through12 Months ContractualMaturitiesTimeDeposits100000OrMoreSixMonthsThrough12Months	400833000	USD
CY2019Q4	us-gaap	Contractual Maturities Time Deposits100000 Or More After12 Months ContractualMaturitiesTimeDeposits100000OrMoreAfter12Months	270852000	USD
CY2019Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	1078891000	USD
CY2019	us-gaap	Interest Expense Time Deposits100000 Or More InterestExpenseTimeDeposits100000OrMore	23900000	USD
CY2018	us-gaap	Interest Expense Time Deposits100000 Or More InterestExpenseTimeDeposits100000OrMore	12500000	USD
CY2017	us-gaap	Interest Expense Time Deposits100000 Or More InterestExpenseTimeDeposits100000OrMore	4500000	USD
CY2019Q4	sasr	Pledged Financial Instruments Percentage Of Principal And Accrued Interest Collateralized PledgedFinancialInstrumentsPercentageOfPrincipalAndAccruedInterestCollateralized	1.025	pure
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	134167000	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Of Amounts Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate	0.0213	pure
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	625969000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Of Amounts Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate	0.0246	pure
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From One To Two Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate	230445000	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate One To Two Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate	0.0239	pure
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From One To Two Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate	42500000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate One To Two Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate	0.0212	pure
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Two To Three Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate	76665000	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Two To Three Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate	0.0237	pure
CY2018	us-gaap	Pro Forma Weighted Average Shares Outstanding Diluted ProFormaWeightedAverageSharesOutstandingDiluted	35707000	shares
CY2017	us-gaap	Pro Forma Weighted Average Shares Outstanding Diluted ProFormaWeightedAverageSharesOutstandingDiluted	24175000	shares
CY2019	sasr	Defined Benefit Plan Unrecognized Net Actuarial Loss DefinedBenefitPlanUnrecognizedNetActuarialLoss	11177000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Two To Three Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate	80816000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Two To Three Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate	0.0308	pure
CY2018	sasr	Defined Benefit Plan Unrecognized Net Actuarial Loss DefinedBenefitPlanUnrecognizedNetActuarialLoss	12352000	USD
CY2019	sasr	Defined Benefit Plan Net Periodic Pension Cost Not Yet Recognized DefinedBenefitPlanNetPeriodicPensionCostNotYetRecognized	11177000	USD
CY2018	sasr	Defined Benefit Plan Net Periodic Pension Cost Not Yet Recognized DefinedBenefitPlanNetPeriodicPensionCostNotYetRecognized	12352000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0325	pure
CY2018Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0415	pure
CY2017Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0365	pure
CY2018	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	7126000	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Three To Four Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromThreeToFourYearsOfBalanceSheetDate	72500000	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Three To Four Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateThreeToFourYearsFromBalanceSheetDate	0.0312	pure
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Three To Four Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromThreeToFourYearsOfBalanceSheetDate	26826000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Three To Four Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateThreeToFourYearsFromBalanceSheetDate	0.0290	pure
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Four To Five Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromFourToFiveYearsOfBalanceSheetDate	0	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Four To Five Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateFourToFiveYearsFromBalanceSheetDate	0	pure
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Four To Five Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromFourToFiveYearsOfBalanceSheetDate	72500000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Four To Five Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateFourToFiveYearsFromBalanceSheetDate	0.0312	pure
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due After Five Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterFiveYearsOfBalanceSheetDate	0	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate After Five Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateAfterFiveYearsFromBalanceSheetDate	0	pure
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due After Five Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterFiveYearsOfBalanceSheetDate	0	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate After Five Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateAfterFiveYearsFromBalanceSheetDate	0	pure
CY2019Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	513777000	USD
CY2019Q4	sasr	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRate	0.0242	pure
CY2018Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	848611000	USD
CY2018Q4	sasr	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRate	0.0257	pure
CY2019Q4	us-gaap	Subordinated Debt SubordinatedDebt	209406000	USD
CY2018Q4	us-gaap	Subordinated Debt SubordinatedDebt	37425000	USD
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.00
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0	pure
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0264	pure
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0245	pure
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0	pure
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.3913	pure
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.4027	pure
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0	pure
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0261	pure
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0214	pure
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y7M9D
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y8M1D
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	0
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	11.73
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	13.42
CY2019	sasr	Defined Benefit Plan Unrecognized Net Actuarial Loss DefinedBenefitPlanUnrecognizedNetActuarialLoss	11177000	USD
CY2018	sasr	Defined Benefit Plan Unrecognized Net Actuarial Loss DefinedBenefitPlanUnrecognizedNetActuarialLoss	12352000	USD
CY2017	sasr	Defined Benefit Plan Unrecognized Net Actuarial Loss DefinedBenefitPlanUnrecognizedNetActuarialLoss	-12487000	USD
CY2019	sasr	Defined Benefit Plan Net Periodic Pension Cost Not Yet Recognized DefinedBenefitPlanNetPeriodicPensionCostNotYetRecognized	11177000	USD
CY2018	sasr	Defined Benefit Plan Net Periodic Pension Cost Not Yet Recognized DefinedBenefitPlanNetPeriodicPensionCostNotYetRecognized	12352000	USD
CY2017	sasr	Defined Benefit Plan Net Periodic Pension Cost Not Yet Recognized DefinedBenefitPlanNetPeriodicPensionCostNotYetRecognized	-12487000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	40152000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	37772000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	41246000	USD
CY2019	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	7195000	USD
CY2018	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	-2646000	USD
CY2019	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	185000	USD
CY2018	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	360000	USD
CY2019	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	1695000	USD
CY2018	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	1188000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	43457000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	37772000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	2040000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	2380000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	81508	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	29.74
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	369000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	15080	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	22.20
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	179000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	1007	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	37.11
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	142	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	42.48
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	65279	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	31.34
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P3Y2M12D
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	485000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	51179	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	29.15
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P2Y8M12D
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	485000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	0
CY2018Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	40152000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	43441000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1609000	USD
CY2018	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1540000	USD
CY2019	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	371000	USD
CY2018	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-593000	USD
CY2019	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	1695000	USD
CY2018	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	1188000	USD
CY2019	us-gaap	Defined Benefit Plan Benefit Obligation Period Increase Decrease DefinedBenefitPlanBenefitObligationPeriodIncreaseDecrease	5060000	USD
CY2018	us-gaap	Defined Benefit Plan Benefit Obligation Period Increase Decrease DefinedBenefitPlanBenefitObligationPeriodIncreaseDecrease	-3048000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	45497000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1609000	USD
CY2018	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1540000	USD
CY2017	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1640000	USD
CY2019	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	1647000	USD
CY2018	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	1861000	USD
CY2017	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	1985000	USD
CY2019	sasr	Defined Benefit Plan Recognized Net Actuarial Loss DefinedBenefitPlanRecognizedNetActuarialLoss	1059000	USD
CY2018	sasr	Defined Benefit Plan Recognized Net Actuarial Loss DefinedBenefitPlanRecognizedNetActuarialLoss	1000000	USD
CY2017	sasr	Defined Benefit Plan Recognized Net Actuarial Loss DefinedBenefitPlanRecognizedNetActuarialLoss	1181000	USD
CY2019	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1021000	USD
CY2018	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	679000	USD
CY2017	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	836000	USD
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0415	pure
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0365	pure
CY2017	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0415	pure
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0500	pure
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0500	pure
CY2017	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0600	pure
CY2016Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	13689000	USD
CY2017	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	-3016000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-1181000	USD
CY2017	sasr	Defined Benefit Plan Accumulated Other Comprehensive Income Increase Related To Change In Discount Rate Assumption DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeIncreaseRelatedToChangeInDiscountRateAssumption	2995000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	12487000	USD
CY2018	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	3914000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-1000000	USD
CY2018	sasr	Defined Benefit Plan Accumulated Other Comprehensive Income Increase Related To Change In Discount Rate Assumption DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeIncreaseRelatedToChangeInDiscountRateAssumption	-3049000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	12352000	USD
CY2019	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	-5176000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-1059000	USD
CY2019	sasr	Defined Benefit Plan Accumulated Other Comprehensive Income Increase Related To Change In Discount Rate Assumption DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeIncreaseRelatedToChangeInDiscountRateAssumption	5060000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	11177000	USD
CY2019Q4	sasr	Defined Benefit Plan Accumulated Other Comprehensive Income Loss Applicable Tax Effect DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossApplicableTaxEffect	2845000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses After Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesAfterTax	8332000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Amortization Next Fiscal Year DefinedBenefitPlanExpectedAmortizationNextFiscalYear	488000	USD
CY2018	sasr	Letter Of Credit Fees LetterOfCreditFees	611000	USD
CY2017	sasr	Letter Of Credit Fees LetterOfCreditFees	847000	USD
CY2019	sasr	Extension Fees ExtensionFees	1287000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Plan Assets Target Allocation Percentage DefinedBenefitPlanPlanAssetsTargetAllocationPercentage	1.000	pure
CY2018Q4	us-gaap	Defined Benefit Plan Plan Assets Target Allocation Percentage DefinedBenefitPlanPlanAssetsTargetAllocationPercentage	1.000	pure
CY2019	us-gaap	Defined Benefit Plan Investment Policies And Strategies Narrative Description DefinedBenefitPlanInvestmentPoliciesAndStrategiesNarrativeDescription	Investment strategies and asset allocations are based on careful consideration of Plan liabilities, the Plan’s funded status and the Company’s financial condition. Investment performance and asset allocation are measured and monitored on an ongoing basis. Management allocates plan assets towards fixed income securities in order to align expected cash outflows with its funding source. This asset allocation has been set after taking into consideration the Plan’s current frozen status and the possibility of partial plan terminations over the intermediate term. The Plan’s asset allocation remained consistent during the current year. Market volatility risk is controlled by limiting the asset allocation of the most volatile asset class, equities, to no more than 70% of the portfolio and by ensuring that there is sufficient liquidity to meet distribution requirements from the portfolio without disrupting long-term assets. Diversification of the equity portion of the portfolio is controlled by limiting the value of any initial acquisition so that it does not exceed 5% of the market value of the portfolio when purchased. The policy requires the sale of any portion of an equity position when its value exceeds 10% of the portfolio. Fixed income market volatility risk is managed by limiting the term of fixed income investments to five years. Fixed income investments must carry an “A” or better rating by a recognized credit rating agency. Corporate debt of a single issuer may not exceed 10% of the market value of the portfolio. The investment in derivative instruments such as “naked” call options, futures, commodities, and short selling is prohibited. Investment in equity index funds and the writing of “covered” call options (a conservative strategy to increase portfolio income) are permitted. Foreign currency-denominated debt instruments are not permitted. At December 31, 2019, management is of the opinion that there are no significant concentrations of risk in the assets of the plan with respect to any single entity, industry, country, commodity or investment fund that are not otherwise mitigated by FDIC insurance available to the participants of the plan and collateral pledged for any such amount that may not be covered by FDIC insurance. Investment performance is measured against industry accepted benchmarks. The risk tolerance and asset allocation limitations imposed by the policy are consistent with attaining the rate of return assumptions used in the actuarial funding calculations. The RPIC committee meets quarterly to review the activities of the investment managers to ensure adherence with the Investment Policy Statement.
CY2019	sasr	Maximum Percentage Of Asset Allocated To Control Market Volatility MaximumPercentageOfAssetAllocatedToControlMarketVolatility	0.70	pure
CY2019	sasr	Maximum Percentage Of Market Value For Initial Acquisition Of Equity Portion MaximumPercentageOfMarketValueForInitialAcquisitionOfEquityPortion	0.05	pure
CY2019	sasr	Minimum Percentage Of Value Of Equity Portion For Sale MinimumPercentageOfValueOfEquityPortionForSale	0.10	pure
CY2019	sasr	Maximum Percentage Of Corporate Debt Issuable To Single Issuer MaximumPercentageOfCorporateDebtIssuableToSingleIssuer	0.10	pure
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	43457000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	37772000	USD
CY2019	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	200000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	2550000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	2420000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	2630000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	2350000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	3320000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Remainder Of Fiscal Year DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear	13890000	USD
CY2019	sasr	Four Zero One K Provision Description FourZeroOneKProvisionDescription	The Sandy Spring Bank 401(k) Plan (“the 401(k)”) is voluntary and covers all eligible employees after ninety days of service. The 401(k) provides that employees contributing to the 401(k) receive a matching contribution of 100% of the first 4% of compensation and 50% of the next 2% of compensation subject to employee contribution limitations. The Company matching contribution vests immediately. The Plan permits employees to purchase shares of the Company’s common stock with their 401(k) contributions, Company match, and other contributions under the Plan.
CY2019	sasr	Profit Sharing And Matching Contribution ProfitSharingAndMatchingContribution	4100000	USD
CY2018	sasr	Profit Sharing And Matching Contribution ProfitSharingAndMatchingContribution	2800000	USD
CY2017	sasr	Profit Sharing And Matching Contribution ProfitSharingAndMatchingContribution	2000000.0	USD
CY2019	sasr	Executive Incentive Retirement Plan Benefit Cost ExecutiveIncentiveRetirementPlanBenefitCost	500000	USD
CY2018	sasr	Executive Incentive Retirement Plan Benefit Cost ExecutiveIncentiveRetirementPlanBenefitCost	400000	USD
CY2017	sasr	Executive Incentive Retirement Plan Benefit Cost ExecutiveIncentiveRetirementPlanBenefitCost	400000	USD
CY2019	sasr	Letter Of Credit Fees LetterOfCreditFees	389000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	32101000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2017	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	6331000	USD
CY2019	us-gaap	Postage Expense PostageExpense	1502000	USD
CY2018	us-gaap	Postage Expense PostageExpense	1439000	USD
CY2017	us-gaap	Postage Expense PostageExpense	1179000	USD
CY2019	us-gaap	Communication Communication	2414000	USD
CY2018	us-gaap	Communication Communication	2610000	USD
CY2017	us-gaap	Communication Communication	1502000	USD
CY2019	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Repayment And Penalties FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresRepaymentAndPenalties	0	USD
CY2018	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Repayment And Penalties FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresRepaymentAndPenalties	0	USD
CY2017	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Repayment And Penalties FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresRepaymentAndPenalties	1275000	USD
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CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	28404000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	18615000	USD
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CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6598000	USD
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CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5146000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	35002000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	25798000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	27501000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	234000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	4808000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	6973000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1192000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1218000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	252000	USD
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CY2017	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	7225000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36428000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	31824000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34726000	USD
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CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	13979000	USD
CY2019Q4	sasr	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	19616000	USD
CY2018Q4	sasr	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	0	USD
CY2019Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deferred Tax Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets	1322000	USD
CY2018Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deferred Tax Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets	2253000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	4535000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	4339000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	2845000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	3228000	USD
CY2019Q4	sasr	Deferred Tax Assets Deferred Loan Fees And Costs DeferredTaxAssetsDeferredLoanFeesAndCosts	471000	USD
CY2018Q4	sasr	Deferred Tax Assets Deferred Loan Fees And Costs DeferredTaxAssetsDeferredLoanFeesAndCosts	306000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	659000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	457000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	2343000	USD
CY2019Q4	sasr	Deferred Tax Assets Losses On Other Real Estate Owned DeferredTaxAssetsLossesOnOtherRealEstateOwned	201000	USD
CY2018Q4	sasr	Deferred Tax Assets Losses On Other Real Estate Owned DeferredTaxAssetsLossesOnOtherRealEstateOwned	202000	USD
CY2019Q4	sasr	Deferred Tax Assets Other Than Temporary Impairment DeferredTaxAssetsOtherThanTemporaryImpairment	76000	USD
CY2018Q4	sasr	Deferred Tax Assets Other Than Temporary Impairment DeferredTaxAssetsOtherThanTemporaryImpairment	76000	USD
CY2019Q4	sasr	Deferred Tax Assets Loan And Deposi Tpremium Or Discount DeferredTaxAssetsLoanAndDeposiTpremiumOrDiscount	1422000	USD
CY2018Q4	sasr	Deferred Tax Assets Loan And Deposi Tpremium Or Discount DeferredTaxAssetsLoanAndDeposiTpremiumOrDiscount	3950000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	1270000	USD
CY2019Q4	sasr	Deferredtaxassetsreserveforrecourseloans Deferredtaxassetsreserveforrecourseloans	166000	USD
CY2018Q4	sasr	Deferredtaxassetsreserveforrecourseloans Deferredtaxassetsreserveforrecourseloans	210000	USD
CY2019Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	916000	USD
CY2018Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	1323000	USD
CY2019Q4	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	0	USD
CY2018Q4	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	251000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	159000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	280000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	46675000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	34467000	USD
CY2019Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	880000	USD
CY2018Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	644000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	45795000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	33823000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	17688000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	0	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	1379000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	0	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	2373000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	2607000	USD
CY2019Q4	sasr	Deferredtaxliabilitiesdepreciation Deferredtaxliabilitiesdepreciation	2744000	USD
CY2018Q4	sasr	Deferredtaxliabilitiesdepreciation Deferredtaxliabilitiesdepreciation	3307000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	3338000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	3701000	USD
CY2019Q4	sasr	Deferredtaxliabilitiesbondaccretion Deferredtaxliabilitiesbondaccretion	322000	USD
CY2018Q4	sasr	Deferredtaxliabilitiesbondaccretion Deferredtaxliabilitiesbondaccretion	188000	USD
CY2019Q4	sasr	Deferred Tax Liabilities Section Four Eighty One Adjustments DeferredTaxLiabilitiesSectionFourEightyOneAdjustments	1335000	USD
CY2018Q4	sasr	Deferred Tax Liabilities Section Four Eighty One Adjustments DeferredTaxLiabilitiesSectionFourEightyOneAdjustments	2053000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	585000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	404000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	29764000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	12260000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	16031000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	21563000	USD
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CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.014	pure
CY2018	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	2427000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.018	pure
CY2017	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	3929000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.045	pure
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CY2019	sasr	Effective Income Tax Rate Reconciliation Deduction Bank Owned Life Insurance Percent EffectiveIncomeTaxRateReconciliationDeductionBankOwnedLifeInsurancePercent	0.004	pure
CY2018	sasr	Effective Income Tax Rate Reconciliation Deduction Bank Owned Life Insurance EffectiveIncomeTaxRateReconciliationDeductionBankOwnedLifeInsurance	909000	USD
CY2018	sasr	Effective Income Tax Rate Reconciliation Deduction Bank Owned Life Insurance Percent EffectiveIncomeTaxRateReconciliationDeductionBankOwnedLifeInsurancePercent	0.007	pure
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CY2017	sasr	Effective Income Tax Rate Reconciliation Deduction Bank Owned Life Insurance Percent EffectiveIncomeTaxRateReconciliationDeductionBankOwnedLifeInsurancePercent	0.009	pure
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CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.040	pure
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CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3508000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.040	pure
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CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0	pure
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0	pure
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	5544000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.063	pure
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	939000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.006	pure
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	658000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.005	pure
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-332000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.004	pure
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36428000	USD
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.238	pure
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	31824000	USD
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.240	pure
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34726000	USD
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.395	pure
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Percent EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent	0.21	pure
CY2017	us-gaap	Tax Cuts And Jobs Act Of2017 Measurement Period Adjustment Income Tax Expense Benefit TaxCutsAndJobsActOf2017MeasurementPeriodAdjustmentIncomeTaxExpenseBenefit	5500000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Percent EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent	0.21	pure
CY2018	us-gaap	Tax Cuts And Jobs Act Of2017 Reclassification From Aoci To Retained Earnings Tax Effect TaxCutsAndJobsActOf2017ReclassificationFromAociToRetainedEarningsTaxEffect	1500000	USD
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CY2018	us-gaap	Net Income Loss NetIncomeLoss	100864000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	53209000	USD
CY2019	us-gaap	Weighted Average Basic Shares Outstanding Pro Forma WeightedAverageBasicSharesOutstandingProForma	35797000	shares
CY2018	us-gaap	Weighted Average Basic Shares Outstanding Pro Forma WeightedAverageBasicSharesOutstandingProForma	35707000	shares
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CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.25
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CY2019	us-gaap	Pro Forma Weighted Average Shares Outstanding Diluted ProFormaWeightedAverageSharesOutstandingDiluted	35797000	shares
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	21665000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	24399000	USD
CY2018Q4	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	327429000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	848611000	USD
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	56000	shares
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	21000	shares
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	32000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35853000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35728000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	24207000	shares
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.25
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.82
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.20
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	9000	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	7000	shares
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-6614000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-243000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-6857000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-7420000	USD
CY2018	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	-1477000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-15754000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	11422000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-4332000	USD
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	77000	USD
CY2018	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	190000	USD
CY2017	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	1273000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	77000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	190000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	1273000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	20000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	50000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	504000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	57000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	140000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	769000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-1059000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-1000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-1181000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-1059000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-1000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-1181000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-277000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-261000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-467000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-782000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-739000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-714000	USD
CY2018Q4	us-gaap	Subordinated Debt SubordinatedDebt	37425000	USD
CY2019Q4	sasr	Concentration Risk Credit Risk Financial Instrument Commitments To Extend Credit ConcentrationRiskCreditRiskFinancialInstrumentCommitmentsToExtendCredit	2196977000	USD
CY2018Q4	sasr	Concentration Risk Credit Risk Financial Instrument Commitments To Extend Credit ConcentrationRiskCreditRiskFinancialInstrumentCommitmentsToExtendCredit	2080562000	USD
CY2019Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	8368000	USD
CY2019	sasr	Fair Value Measured On Nonrecurring Basis Losses FairValueMeasuredOnNonrecurringBasisLosses	-6580000	USD
CY2018Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	8364000	USD
CY2018	sasr	Fair Value Measured On Nonrecurring Basis Losses FairValueMeasuredOnNonrecurringBasisLosses	-11194000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	24800000	USD
CY2019Q4	sasr	Impaired Financing Receivable Fair Value ImpairedFinancingReceivableFairValue	19300000	USD
CY2019Q4	sasr	Impaired Financing Receivable With Specific Reserves ImpairedFinancingReceivableWithSpecificReserves	5500000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	22200000	USD
CY2018Q4	sasr	Impaired Financing Receivable Fair Value ImpairedFinancingReceivableFairValue	17300000	USD
CY2018Q4	sasr	Impaired Financing Receivable With Specific Reserves ImpairedFinancingReceivableWithSpecificReserves	4900000	USD
CY2019Q4	sasr	Other Held To Maturity Securities And Other Equity Securities OtherHeldToMaturitySecuritiesAndOtherEquitySecurities	51803000	USD
CY2019Q4	us-gaap	Notes Receivable Net NotesReceivableNet	6649100000	USD
CY2019Q4	us-gaap	Interest Receivable And Other Assets InterestReceivableAndOtherAssets	113171000	USD
CY2019Q4	us-gaap	Time Deposits TimeDeposits	1542322000	USD
CY2019Q4	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	213605000	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	513777000	USD
CY2019Q4	us-gaap	Subordinated Debt SubordinatedDebt	209406000	USD
CY2018Q4	sasr	Other Held To Maturity Securities And Other Equity Securities OtherHeldToMaturitySecuritiesAndOtherEquitySecurities	73389000	USD
CY2018Q4	us-gaap	Notes Receivable Net NotesReceivableNet	6518148000	USD
CY2018Q4	us-gaap	Interest Receivable And Other Assets InterestReceivableAndOtherAssets	110823000	USD
CY2018Q4	us-gaap	Time Deposits TimeDeposits	1526161000	USD
CY2019	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	347869000	USD
CY2019	us-gaap	Interest Expense InterestExpense	82561000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4684000	USD
CY2019	us-gaap	Noninterest Income NoninterestIncome	71322000	USD
CY2019	us-gaap	Noninterest Expense NoninterestExpense	179085000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	152861000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36428000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	116433000	USD
CY2019Q4	us-gaap	Assets Assets	8629002000	USD
CY2018	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	324082000	USD
CY2018	us-gaap	Interest Expense InterestExpense	63637000	USD
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	9023000	USD
CY2018	us-gaap	Noninterest Income NoninterestIncome	61049000	USD
CY2018	us-gaap	Noninterest Expense NoninterestExpense	179783000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	132688000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	31824000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	100864000	USD
CY2018Q4	us-gaap	Assets Assets	8243272000	USD
CY2017	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	194799000	USD
CY2017	us-gaap	Interest Expense InterestExpense	26031000	USD
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2977000	USD
CY2017	us-gaap	Noninterest Income NoninterestIncome	51243000	USD
CY2017	us-gaap	Noninterest Expense NoninterestExpense	129099000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	87935000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34726000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	53209000	USD
CY2017Q4	us-gaap	Assets Assets	5446675000	USD
CY2019Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	88183000	USD
CY2019Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	87214000	USD
CY2019Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	87082000	USD
CY2019Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	85390000	USD
CY2019Q1	us-gaap	Interest Expense InterestExpense	21433000	USD
CY2019Q2	us-gaap	Interest Expense InterestExpense	21029000	USD
CY2019Q3	us-gaap	Interest Expense InterestExpense	20292000	USD
CY2019Q4	us-gaap	Interest Expense InterestExpense	19807000	USD
CY2019Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	66750000	USD
CY2019Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	66185000	USD
CY2019Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	66790000	USD
CY2019Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	65583000	USD
CY2019Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-128000	USD
CY2019Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1633000	USD
CY2019Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1524000	USD
CY2019Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1655000	USD
CY2019Q1	us-gaap	Noninterest Income NoninterestIncome	16969000	USD
CY2019Q2	us-gaap	Noninterest Income NoninterestIncome	16556000	USD
CY2019Q3	us-gaap	Noninterest Income NoninterestIncome	18573000	USD
CY2019Q4	us-gaap	Noninterest Income NoninterestIncome	19224000	USD
CY2019Q1	us-gaap	Noninterest Expense NoninterestExpense	44192000	USD
CY2019Q2	us-gaap	Noninterest Expense NoninterestExpense	43887000	USD
CY2019Q3	us-gaap	Noninterest Expense NoninterestExpense	44925000	USD
CY2019Q4	us-gaap	Noninterest Expense NoninterestExpense	46081000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	39655000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	37221000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	38914000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	37071000	USD
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9338000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8945000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9531000	USD
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8614000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	30317000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	28276000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	29383000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	28457000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.85
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.79
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.82
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.80
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.85
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.79
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.82
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.80
CY2018Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	75504000	USD
CY2018Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	78597000	USD
CY2018Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	84374000	USD
CY2018Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	85607000	USD
CY2018Q1	us-gaap	Interest Expense InterestExpense	12613000	USD
CY2018Q2	us-gaap	Interest Expense InterestExpense	14779000	USD
CY2018Q3	us-gaap	Interest Expense InterestExpense	16783000	USD
CY2018Q4	us-gaap	Interest Expense InterestExpense	19462000	USD
CY2018Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	62891000	USD
CY2018Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	63818000	USD
CY2018Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	67591000	USD
CY2018Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	66145000	USD
CY2018Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1997000	USD
CY2018Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1733000	USD
CY2018Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1890000	USD
CY2018Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	3403000	USD
CY2018Q1	us-gaap	Noninterest Income NoninterestIncome	17118000	USD
CY2018Q2	us-gaap	Noninterest Income NoninterestIncome	14868000	USD
CY2018Q3	us-gaap	Noninterest Income NoninterestIncome	15033000	USD
CY2018Q4	us-gaap	Noninterest Income NoninterestIncome	14030000	USD
CY2018Q1	us-gaap	Noninterest Expense NoninterestExpense	49641000	USD
CY2018Q2	us-gaap	Noninterest Expense NoninterestExpense	45082000	USD
CY2018Q3	us-gaap	Noninterest Expense NoninterestExpense	42393000	USD
CY2018Q4	us-gaap	Noninterest Expense NoninterestExpense	42667000	USD
CY2018Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	28371000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	31871000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	38341000	USD
CY2018Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	34105000	USD
CY2018Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6706000	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7472000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9107000	USD
CY2018Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8539000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	29234000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	25566000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.61
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.68
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.82
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.72
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.61
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.68
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.82
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.72

Files In Submission

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$SASR
Sandy Spring Bancorp Inc Stock $sasr

2019 Form 10-K Financial Statement

#000082441020000004 Filed on February 21, 2020

Income Statement

Balance Sheet

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Facts In Submission

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$SASR Sandy Spring Bancorp Inc Stock $sasr

2019 Form 10-K Financial Statement

#000082441020000004 Filed on February 21, 2020

Income Statement

Balance Sheet

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Files In Submission

$SASR
Sandy Spring Bancorp Inc Stock $sasr