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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_NatureOfOperationsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Nature Of Operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Noncash investing and financing activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Available-for-sale Securities, debt maturities, within one year, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Available-for-sale Securities, debt maturities, within one year, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockAcquiredAverageCostPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Average price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockAcquiredAverageCostPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares Acquired, Average Cost Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockAcquiredAverageCostPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Treasury Stock Acquired, Average Cost Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDebtInstrumentsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Long-Term Debt Instruments [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDebtInstrumentsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Senior Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Available-for-sale Securities, Estimated fair value, 12 months or more</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Current Reporting Status</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Current Reporting Status</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Financing Receivable [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class of Financing Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AssetsAtFairValueOnRecurringBasisBeforeCashEquivalentsMeasuredAtNAVMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets At Fair Value On Recurring Basis Before Cash Equivalents Measured at NAV [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AssetsAtFairValueOnRecurringBasisBeforeCashEquivalentsMeasuredAtNAVMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Assets at fair value on recurring basis before cash equivalents measured at NAV.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AssetsAtFairValueOnRecurringBasisBeforeCashEquivalentsMeasuredAtNAVMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets At Fair Value On Recurring Basis Before Cash Equivalents Measured at NAV [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherInvestmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Other investment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherInvestmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Investment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherInvestmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other Investment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FiveAircraftEngineMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Five Aircraft Engine [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FiveAircraftEngineMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Five aircraft engine.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FiveAircraftEngineMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Five Aircraft Engine [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_USGovernmentAgenciesDebtSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">US Government Agencies Debt Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_USGovernmentAgenciesDebtSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">U.S. Government Agency Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 2 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 2 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments, Guarantees, and Contingencies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, shares authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesOwnedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Securities owned.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesOwnedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Owned [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesOwnedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities Owned [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Asset, Expected Amortization, Year Four</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2029</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Receivable, after Allowance for Credit Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Receivables related to contract with customers</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accounts Receivable, after Allowance for Credit Loss, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasicAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Basic [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasicAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings per common share:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductOrServiceAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Product and Service [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductOrServiceAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Product and Service</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInBrokerageReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Receivable from Broker-Dealer and Clearing Organization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInBrokerageReceivables_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Brokers, dealers, and clearing organizations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AgencySecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Agency Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AgencySecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Agency Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value by Liability Class [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value by Liability Class</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Period Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Fiscal Period Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Senior Notes Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Interest Rate, Stated Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument Interest Rate Stated Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue from Contract with Customer [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Shell Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Shell Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CapitalRaisingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Capital raising.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CapitalRaisingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Raising [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CapitalRaisingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital Raising [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsCommonStockCash_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends, Common Stock, Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsCommonStockCash_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Dividends declared, Common</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Cash and Cash Equivalents, at Carrying Value, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and cash equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding Reconciliation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted-average number of common shares outstanding:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Maturities of Long-Term Debt [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Corporate Date Maturity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Available for sale securities debt maturities after one through three years fair value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Available For Sale Securities Debt Maturities After One Through Three Years Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Available-for-sale Securities, debt maturities, after one year through three years, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_BusinessCombinationLiabilityForEstimatedEarnOutPaymentsAndContingentConsideration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Liability for Estimated Earn Out Payments and Contingent Consideration</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_BusinessCombinationLiabilityForEstimatedEarnOutPaymentsAndContingentConsideration_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business combination liability for estimated earn out payments and contingent consideration.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_BusinessCombinationLiabilityForEstimatedEarnOutPaymentsAndContingentConsideration_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liability for estimated earn-out payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRedemptions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair value measurement with unobservable inputs reconciliation recurring basis asset redemptions.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRedemptions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Redemptions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRedemptions_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Redemptions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRedemptions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redemptions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesTradingRestricted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Trading, Restricted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesTradingRestricted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trading securities pledged</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, shares issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Common Stock, Shares, Issued, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShortTermDebtTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Debt [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShortTermDebtTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Short Term Debt [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Class [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset Class</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statement [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeDebtSecuritiesAvailableForSaleOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income, Debt Securities, Available-for-Sale, Operating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeDebtSecuritiesAvailableForSaleOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Tier 1 Risk-Based Capital Ratio, Capital Adequacy, Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tier 1 capital For Capital Adequacy Purposes, Ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Right-of-Use Asset Obtained in Exchange for Operating Lease Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Right-of-use assets obtained in exchange for new operating lease liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued interest receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OffsettingAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Assets [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OffsettingAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Offsetting Assets [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year One through Five</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Held-to-maturity Securities, debt maturities, after one year through five, Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AmericasMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Americas [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AmericasMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">United States [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statement [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValueAcquiredCostMethod_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Share repurchases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValueAcquiredCostMethod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Treasury Stock, Value, Acquired, Cost Method</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValueAcquiredCostMethod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchase of treasury stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValueAcquiredCostMethod_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Common stock repurchased</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAcquireeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Trading, and Equity Securities, FV-NI</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial instruments owned, at fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Financial instruments owned, at fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Financial instruments owned</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneRiskBasedCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Tier 1 Risk-Based Capital, Actual</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneRiskBasedCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tier 1 capital, Actual Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ExternalCreditRatingMoodysMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">External Credit Rating, Moody's [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ExternalCreditRatingMoodysMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">External Credit Rating, Moody's</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Filer Category</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Filer Category</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseNetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest Income (Expense), Net [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseNetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income (Expense), Operating [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherInterestAndDividendIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Other interest and dividend income expense net.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherInterestAndDividendIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Interest And Dividend Income Expense Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherInterestAndDividendIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFinancingReceivablesPastDueTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, Past Due [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFinancingReceivablesPastDueTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Financing Receivables Past Due [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities and Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities and equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DeferredAwardsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred awards.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DeferredAwardsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Awards [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DeferredAwardsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred Awards [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Recoveries</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, Allowance for Credit Loss, Recovery</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_BRileyFinancialIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">B Riley Financial Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_BRileyFinancialIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">B riley financial Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_BRileyFinancialIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">B Riley Financial Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Year Three</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2026</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestructuringCostAndReserveAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restructuring Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Lived Tangible Asset [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-Lived Tangible Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PeriodOfEstimatedFutureOperatingResults_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Estimated future operating results</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PeriodOfEstimatedFutureOperatingResults_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Period of Estimated Future Operating Results</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PeriodOfEstimatedFutureOperatingResults_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Period of estimated future operating results.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradeNamesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trade Names [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradeNamesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trade Name [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneLeverageCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Tier 1 Leverage Capital, Actual</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneLeverageCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tier 1 leverage, Actual Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ConstructionAndLandMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Construction and land.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ConstructionAndLandMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Construction And Land [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ConstructionAndLandMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Construction And Land [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_GlobalWealthManagementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Global wealth management.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_GlobalWealthManagementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Global Wealth Management [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_GlobalWealthManagementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Global Wealth Management [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and cash equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InterestIncomeFromFinancialInstrumentsOwned_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Interest income from financial instruments owned.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InterestIncomeFromFinancialInstrumentsOwned_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income From Financial Instruments Owned</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InterestIncomeFromFinancialInstrumentsOwned_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial instruments owned</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PledgedStatusAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Pledged Status [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InvestmentsAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investments at fair value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InvestmentsAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments At Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InvestmentsAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments, at fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Goodwill, Ending balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Goodwill, Beginning balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goodwill</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Goodwill, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNoncashIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Noncash Income (Expense)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNoncashIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Other, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNoncashIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Noncash Income (Expense), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_StifelFinancialCapitalTrustsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stifel Financial Capital Trusts [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_StifelFinancialCapitalTrustsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Stifel financial capital trusts.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_StifelFinancialCapitalTrustsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stifel Financial Capital Trusts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest and Fee Income, Loan and Lease, Held-in-Portfolio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loans held for investment, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Interest and Fee Income, Loans and Leases Held-in-portfolio, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SegmentGeographicalDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographical [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SegmentGeographicalDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Geographical</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RevenueFromContractWithCustomerExcludingOtherSegmentRevenueAndAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Revenue from contract with customer excluding other segment revenue and assessed tax.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RevenueFromContractWithCustomerExcludingOtherSegmentRevenueAndAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue From Contract With Customer Excluding Other Segment Revenue And Assessed Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RevenueFromContractWithCustomerExcludingOtherSegmentRevenueAndAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total revenue from contracts with customers</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RevenueFromContractWithCustomerExcludingOtherSegmentRevenueAndAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total revenue from contracts with customers</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetBackedSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset-Backed Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetBackedSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset-Backed Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Available-for-sale Securities, debt maturities, after ten years, Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AvailableForSaleSecuritiesDebtMaturitiesAfterThreeYearThroughFiveYearsAmortizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Available for sale securities debt maturities after three year through five years amortized cost.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AvailableForSaleSecuritiesDebtMaturitiesAfterThreeYearThroughFiveYearsAmortizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Available For Sale Securities Debt Maturities After Three Year Through Five Years Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AvailableForSaleSecuritiesDebtMaturitiesAfterThreeYearThroughFiveYearsAmortizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Available-for-sale Securities, debt maturities, after three year through five years, Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Operating Information, Segment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfVariableInterestEntitiesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Interest Entity [Table]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PercentageOfEarningsDeferredIntoCompanyStockUnitsAdditionalElectiveDeferral_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of earnings deferred into company stock units additional elective deferral.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PercentageOfEarningsDeferredIntoCompanyStockUnitsAdditionalElectiveDeferral_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Earnings Deferred Into Company Stock Units Additional Elective Deferral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PercentageOfEarningsDeferredIntoCompanyStockUnitsAdditionalElectiveDeferral_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of earnings deferred into company stock units, Additional elective deferral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnderlyingAssetClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Underlying Asset Class [Domain]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Receivable, Allowance for Credit Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Accounts Receivable, Allowance for Credit Loss, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Accounts Receivable, Allowance for Credit Loss, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Allowance for credit losses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_USGovernmentAgencySecuritiesAndUSGovernmentSecuritiesAndCorporateFixedIncomeSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">U.S. government agency securities and U.S. government securities and Corporate fixed income securities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_USGovernmentAgencySecuritiesAndUSGovernmentSecuritiesAndCorporateFixedIncomeSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">U S Government Agency Securities And U S Government Securities And Corporate Fixed Income Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_USGovernmentAgencySecuritiesAndUSGovernmentSecuritiesAndCorporateFixedIncomeSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">U.S. Government Agency Securities And U.S. Government Securities And Corporate Fixed Income Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Issuance Costs, Net</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_StifelBankAndTrustMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Stifel Bank and Trust.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_StifelBankAndTrustMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stifel Bank And Trust [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_NonRecourseDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Non recourse debt.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfDueToBrokerDealersAndClearingOrganizationsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Due To Broker Dealers And Clearing Organizations Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfDueToBrokerDealersAndClearingOrganizationsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of amounts payable to broker-dealers and clearing organizations, including securities failed to receive, deposits received for securities loaned, amounts payable to clearing organizations related to open transactions.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsSoldNotYetPurchasedStateAndMunicipalGovernmentObligations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instruments Sold, Not yet Purchased, State and Municipal Government Obligations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsSoldNotYetPurchasedStateAndMunicipalGovernmentObligations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">State and municipal securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 10</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Held-to-maturity Securities, debt maturities, after ten years, Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_NonAgencyMortgageBackedSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Non-agency mortgage-backed securities.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_NonAgencyMortgageBackedSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-Agency [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DebtAndEquityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt and equity.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DebtAndEquityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt and equity [member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ToBeAnnouncedSecurityContractsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">To be announced (&#8220;TBA&#8221;) security contracts.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VestingDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vesting [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VestingDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Vesting</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_HeldToMaturitySecuritiesDebtMaturitiesAfterThreeThroughFiveYearsNetCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Held-to-maturity Securities, debt maturities, after three through five years, Amortized Cost</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SwapMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Swap [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SwapMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Swap [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Interest Entity [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Interest Entity [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_HeldToMaturitySecuritiesDebtMaturitiesAfterThreeThroughFiveYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Held to maturity securities debt maturities after three through five years fair value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_HeldToMaturitySecuritiesDebtMaturitiesAfterThreeThroughFiveYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Held To Maturity Securities Debt Maturities After Three Through Five Years Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_HeldToMaturitySecuritiesDebtMaturitiesAfterThreeThroughFiveYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Held-to-maturity Securities, debt maturities, after three through five years, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustments to reconcile net income to net cash provided by operating activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CommercialAndIndustrialMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Commercial and industrial.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CommercialAndIndustrialMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commercial And Industrial [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CommercialAndIndustrialMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commercial and Industrial [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PurchaseCommitmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Purchase commitments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PurchaseCommitmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Purchase Commitments [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PurchaseCommitmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchase Commitments [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayableFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Senior notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayableFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Payable, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SharebasedCompensationArrangementByShareBasedPaymentAwardAwardSharesPotentiallyConvertedRangePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sharebased compensation arrangement by share based payment award award shares potentially converted range percentage.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SharebasedCompensationArrangementByShareBasedPaymentAwardAwardSharesPotentiallyConvertedRangePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sharebased Compensation Arrangement By Share Based Payment Award Award Shares Potentially Converted Range Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SharebasedCompensationArrangementByShareBasedPaymentAwardAwardSharesPotentiallyConvertedRangePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Potential percentage of converted shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, Allowance for Credit Loss [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financing Receivable Allowance For Credit Losses [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ParentCompanyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Parent Company [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ParentCompanyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stifel Financial Corp. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MoodysAaaRatingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Moody's, Aaa Rating [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MoodysAaaRatingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">AAA [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CashSegregatedForRegulatoryPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cash segregated for regulatory purposes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CashSegregatedForRegulatoryPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Segregated For Regulatory Purposes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CashSegregatedForRegulatoryPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash segregated for regulatory purposes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stifel Financial Corp. shareholders' equity:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Changes in Fair Value Associated with Level 3 Financial Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesBorrowed_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Borrowed</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesBorrowed_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net amounts presented in the Statement of Financial Condition, Securities borrowing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Small Business</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Small Business</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FinancingReceivables30To89DaysPastDueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Financing receivables 30 to 89 days past due.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FinancingReceivables30To89DaysPastDueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivables30 To89 Days Past Due [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FinancingReceivables30To89DaysPastDueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">30 - 89 Days Past Due [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_MoodysARatingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Moody's A Rating.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_MoodysARatingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Moodys A Rating [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_MoodysARatingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">A [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesPurchasedUnderAgreementsToResellNetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Securities purchased under agreements to resell, net amount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesPurchasedUnderAgreementsToResellNetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Purchased Under Agreements To Resell Net Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesPurchasedUnderAgreementsToResellNetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Securities purchased under agreements to resell, Net amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfGoodwillAndIntangibleAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of goodwill and intangible assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfGoodwillAndIntangibleAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Goodwill And Intangible Assets [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfGoodwillAndIntangibleAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Goodwill And Intangible Assets [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill, Foreign Currency Translation and Measurement Period Adjustments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goodwill, Adjustments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecuritiesAndCertainTradingAssetsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecuritiesAndCertainTradingAssetsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Instruments Owned and Financial Instruments Sold, But Not Yet Purchased</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ImpairmentRelatedToReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Impairment related to receivables.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ImpairmentRelatedToReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Impairment Related To Receivables</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ImpairmentRelatedToReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Impairment related to receivables</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DebenturesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debentures.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DebenturesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debentures [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DebenturesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debentures [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OffsettingAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInSecuritiesLendingPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Securities Lending Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInSecuritiesLendingPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Increase in securities loaned</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee Incentive, Deferred Compensation, and Retirement Plans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization, Consolidation and Presentation of Financial Statements [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other Than Temporary Impairment Credit Losses Recognized In Earnings [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_StifelBankMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Stifel bank.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_StifelBankMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stifel Bank [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_StifelBankMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stifel Bank [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeaseDescriptionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Lease, Description [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeaseDescriptionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lessee Lease Description [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amendment Flag</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amendment Flag</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FairValueOfSecuritiesReceivedAsCollateralMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair value of securities received as collateral.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FairValueOfSecuritiesReceivedAsCollateralMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Of Securities Received As Collateral [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FairValueOfSecuritiesReceivedAsCollateralMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Of Securities Received As Collateral [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductsAndServicesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Product and Service [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductsAndServicesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Product and Service</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingenciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Contingencies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingenciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss Contingencies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AllowancesForUnfundedCreditCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Allowances for unfunded credit commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AllowancesForUnfundedCreditCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Allowances for Unfunded Credit Commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AllowancesForUnfundedCreditCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Allowances for unfunded credit commitments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecurityOwnedAndSoldNotYetPurchasedAtFairValueAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Owned and Sold, Not yet Purchased, at Fair Value [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecurityOwnedAndSoldNotYetPurchasedAtFairValueAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security Owned and Sold, Not yet Purchased, at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfHeldToMaturitySecuritiesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Held-to-Maturity Securities [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfHeldToMaturitySecuritiesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Held To Maturity Securities [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Nature of Operations, Basis of Presentation, and Summary of Significant Accounting Policies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Postal Zip Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Postal Zip Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Operating Activity, Including Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash provided by operating activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubstandardMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Substandard [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubstandardMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Substandard [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_StifelBancorpMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stifel Bancorp [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_StifelBancorpMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stifel Bancorp [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_StifelBancorpMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Stifel Bancorp.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonfinancialLiabilitiesFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Nonfinancial Liabilities Fair Value Disclosure, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonfinancialLiabilitiesFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Nonfinancial Liabilities Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonfinancialLiabilitiesFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative contracts, Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableNonaccrualNoAllowance_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Nonperforming loans with no allowance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableNonaccrualNoAllowance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, Nonaccrual, No Allowance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FairValueOfSecuritiesPledgedAsCollateralMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair value of securities pledged as collateral.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FairValueOfSecuritiesPledgedAsCollateralMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Of Securities Pledged As Collateral [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FairValueOfSecuritiesPledgedAsCollateralMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Of Securities Pledged As Collateral [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Defined Contribution Plan, Employer Discretionary Contribution Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contributions to profit sharing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Year One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Total Risk-Based, Tier 1 Risk-Based, And Tier 1 Leverage Ratios</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year Three</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2028</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PaymentsOfDividendsCommonStockAndEquityAwardHolders_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Payments of dividends common stock and equity award holders.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PaymentsOfDividendsCommonStockAndEquityAwardHolders_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments Of Dividends Common Stock And Equity Award Holders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PaymentsOfDividendsCommonStockAndEquityAwardHolders_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Cash dividends paid to common stock and equity-award holders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PortionAtFairValueFairValueDisclosureMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Portion at Fair Value Measurement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PortionAtFairValueFairValueDisclosureMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Disclosure Item Amounts [Default]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PortionAtFairValueFairValueDisclosureMember_lbl" xlink:role="http://fasb.org/us-gaap/role/label/axisDefault">Portion at Fair Value Measurement [Member] [Default]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 2 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instruments, Owned, at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Security Owned and Pledged as Collateral, Fair Value, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsOwnedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial instruments pledged as collateral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Supplemental Cash Flow Information [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Supplemental disclosure of cash flow information:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResidentialRealEstateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Residential Real Estate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResidentialRealEstateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Residential Real Estate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherRevenueFromContractsWithCustomer_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Other revenue from contracts with customer.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherRevenueFromContractsWithCustomer_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Revenue From Contracts With Customer</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherRevenueFromContractsWithCustomer_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative contracts, Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative Asset, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Derivative Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill and Intangible Assets Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goodwill and Intangible Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneLeverageCapitalToAverageAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Tier 1 Leverage Capital Ratio, Actual</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneLeverageCapitalToAverageAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tier 1 leverage, Actual Ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityExpirationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Expiration Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityExpirationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Letters of credit, expiration period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Financial Position Location, Balance [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Balance Sheet Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesLoanedNetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Securities loaned, net amount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesLoanedNetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Loaned Net Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesLoanedNetAmount_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Securities lending, Net amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_UnitsNetOfForfeitures_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Units, net of forfeitures.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_UnitsNetOfForfeitures_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Units Net Of Forfeitures</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_UnitsNetOfForfeitures_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unit grants, net of forfeitures</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Right-of-Use Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease right-of-use assets, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Unrealized Loss Position</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Available-for-sale Securities, Continuous</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Debt Securities, Available-for-Sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Purchase of available-for-sale securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Changes in unrealized gains on available-for-sale securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Unrealized gains on securities, net of tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRedemptionPeriodAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Redemption, Period [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRedemptionPeriodAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument, Redemption, Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesPurchasedUnderAgreementsToResellGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Purchased under Agreement to Resell, Subject to Master Netting Arrangement, before Offset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesPurchasedUnderAgreementsToResellGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross amounts of recognized assets, Reverse repurchase agreements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfSeniorDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Senior Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfSeniorDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Repayments of Senior Debt, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfSeniorDebt_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Repayment of senior notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfSeniorDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Repayment of senior notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Document Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_PayablesToBrokerDealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Broker-Dealer, Payable to Other Broker-Dealer and Clearing Organization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_PayablesToBrokerDealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Brokers, dealers, and clearing organizations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_PayablesToBrokerDealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Payables to broker, dealers and clearing organizations, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfAmortizedCostAndFairValuesOfDebtSecuritiesByContractualMaturityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Amortized Cost and Fair Values of Debt Securities by Contractual Maturity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfAmortizedCostAndFairValuesOfDebtSecuritiesByContractualMaturityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of amortized cost and fair values of debt securities by contractual maturity.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfAmortizedCostAndFairValuesOfDebtSecuritiesByContractualMaturityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Amortized Cost And Fair Values Of Debt Securities By Contractual Maturity Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Taxes Paid, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash paid for income taxes, net of refunds</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Income Taxes Paid, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Central Index Key</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Central Index Key</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Tier 1 Leverage Capital, Well Capitalized, Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Lessee operating lease liability payments due after year four.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee Operating Lease Liability Payments Due After Year Four</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Thereafter</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesFailedToReceive_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Failed-to-Receive</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesFailedToReceive_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities failed to receive</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AvailableForSaleSecuritiesDebtMaturitiesAfterOneYearThroughThreeYearsAmortizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Available for sale securities debt maturities after one year through three years amortized cost.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AvailableForSaleSecuritiesDebtMaturitiesAfterOneYearThroughThreeYearsAmortizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Available For Sale Securities Debt Maturities After One Year Through Three Years Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AvailableForSaleSecuritiesDebtMaturitiesAfterOneYearThroughThreeYearsAmortizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Available-for-sale Securities, debt maturities, after one year through three years, Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments, Debt and Equity Securities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TurbineEnginesSecuritizationLtdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Turbine</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TurbineEnginesSecuritizationLtdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Turbine Engines Securitization Ltd [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TurbineEnginesSecuritizationLtdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Turbine engines securitization ltd.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_NumberOfLeasedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of aircraft engines</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_NumberOfLeasedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Leased Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_NumberOfLeasedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of leased assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase/(decrease) in cash, cash equivalents, and cash segregated for regulatory purposes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income, Operating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total interest income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dilutive effect of stock options and units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 5 through 10</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Held-to-maturity Securities, debt maturities, after five through ten years, Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Held-to-maturity Securities, debt maturities, after five year through ten, Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, par value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfAdoptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherSourcesOfRevenueAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Other sources of revenue.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherSourcesOfRevenueAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Sources Of Revenue [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherSourcesOfRevenueAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other sources of revenue:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationAwardTrancheOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Tranche One [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationAwardTrancheOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">One to Four Years [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfShortTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Short-Term Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfShortTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Repayments of Short-Term Debt, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfShortTermDebt_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Repayment of short term debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, Credit Quality Indicator [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financing Receivable Recorded Investment [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Available-for-sale securities, Amortized cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InvestmentBankingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment banking.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InvestmentBankingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Banking [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InvestmentBankingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment Banking [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Available-for-sale securities, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Available-for-sale Securities, debt maturities, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Available-for-sale securities, at fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Available-for-sale securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Share based compensation arrangement by share based payment award award performance period.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Based Compensation Arrangement By Share Based Payment Award Award Performance Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Award performance period in years</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LineOfCreditFacilityMaximumBorrowingCapacityTerminated_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Termination of committed revolving credit facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LineOfCreditFacilityMaximumBorrowingCapacityTerminated_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility Maximum Borrowing Capacity Terminated</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LineOfCreditFacilityMaximumBorrowingCapacityTerminated_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Line of credit facility maximum borrowing capacity terminated.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesFromClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Receivable from clearing organizations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesFromClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receivables from Clearing Organizations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DoubtfulMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Doubtful [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DoubtfulMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Doubtful [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherStatesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherStatesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Other states.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherStatesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other States [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RemainingLeaseTermOperatingLeases_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Remaining lease term operating leases.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RemainingLeaseTermOperatingLeases_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Remaining Lease Term Operating Leases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RemainingLeaseTermOperatingLeases_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating leases remaining lease term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityNotPrimaryBeneficiaryDisclosuresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Interest Entity, Not Primary Beneficiary, Disclosures [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfLoansHeldForSale_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from loans held for sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfLoansHeldForSale_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Sale, Loan, Held-for-Sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfLoansHeldForSale_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Proceeds from Sale, Loan, Held-for-Sale, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Derivative Instruments [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Maturities of Derivative Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetManagement1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Management [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetManagement1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset Management [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EstimateOfFairValueFairValueDisclosureMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Estimate of Fair Value Measurement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EstimateOfFairValueFairValueDisclosureMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Estimated Fair Value [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative, Notional Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notional value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Derivative, Notional Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CreditLossReservesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Credit loss reserves, net.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CreditLossReservesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Credit Loss Reserves Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CreditLossReservesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit loss reserves net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CashAwardsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Awards [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CashAwardsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cash awards.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsUnappropriated_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings, Unappropriated</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsUnappropriated_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Retained earnings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeFederalFundsSold_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest-bearing cash and federal funds sold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeFederalFundsSold_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income, Federal Funds Sold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Current Fiscal Year End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current Fiscal Year End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfMaturitiesOfCertificatesOfDepositTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of maturities of certificates of deposit.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfMaturitiesOfCertificatesOfDepositTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Maturities of Certificates of Deposit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Long-Term Debt Instruments [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LegalMattersAndContingenciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Legal Matters and Contingencies [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LegalMattersAndContingenciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Legal Proceedings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentQuarterlyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Quarterly Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentQuarterlyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Quarterly Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prior [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Term loans amortized cost basis by origination year two thousand twenty.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherCostAndExpenseOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Cost and Expense, Operating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherCostAndExpenseOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other operating expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherCostAndExpenseOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Cost and Expense, Operating, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FloorBrokerageExchangeAndClearanceFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Floor Brokerage, Exchange and Clearance Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FloorBrokerageExchangeAndClearanceFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commissions and floor brokerage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FloorBrokerageExchangeAndClearanceFees_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Floor Brokerage, Exchange and Clearance Fees, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receivables [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CustomerRelationshipsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Customer Relationships [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CustomerRelationshipsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Customer Relationships [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByBalanceSheetGroupingTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, by Balance Sheet Grouping [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByBalanceSheetGroupingTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value By Balance Sheet Grouping [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, State or Province</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, State or Province</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unvested stock awards outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOtherAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Other Accrued Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOtherAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other liabilities and accrued expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Available for sale securities, Gross unrealized gains</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfOtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfOtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Other Than Temporary Impairment Credit Losses Recognized In Earnings [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementGeographicalAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographical [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementGeographicalAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Geographical</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_MarginBalances_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Margin balances.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_MarginBalances_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Margin Balances</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_MarginBalances_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Margin balances</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InternalCreditAssessmentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Internal Credit Assessment [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InternalCreditAssessmentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Special Mention [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForProceedsFromBusinessesAndInterestInAffiliates_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for (Proceeds from) Businesses and Interest in Affiliates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForProceedsFromBusinessesAndInterestInAffiliates_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Acquisitions, net of cash received</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForProceedsFromBusinessesAndInterestInAffiliates_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Payments for (Proceeds from) Businesses and Interest in Affiliates, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CustomerSecuritiesForWhichEntityHasRightToSellOrRepledgeFairValueOfSecuritiesSoldOrRepledged_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Customer Securities for which Entity has Right to Sell or Repledge, Fair Value of Securities Sold or Repledged</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CustomerSecuritiesForWhichEntityHasRightToSellOrRepledgeFairValueOfSecuritiesSoldOrRepledged_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of collateral securities sold or repledged</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Trading, and Equity Securities, FV-NI [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Trading Securities And Other Trading Assets [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesPurchasedUnderAgreementsToResellFairValueOfCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Fair value of securities received as collateral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesPurchasedUnderAgreementsToResellFairValueOfCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Purchased under Agreements to Resell, Fair Value of Collateral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesPurchasedUnderAgreementsToResellFairValueOfCollateral_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gross amounts not offset in the Statement of Financial Position, Collateral received, Securities purchased under agreements to resell</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income (Loss), Net of Tax [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other comprehensive income/(loss), net of tax:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Income Tax Assets, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred tax assets, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Deferred Income Tax Assets, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentNonconsolidatedInvesteeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investment, Nonconsolidated Investee [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CompensatoryDamagesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Compensatory Damages [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CompensatoryDamagesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Compensatory damages.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CompensatoryDamagesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Compensatory Damages [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares authorized to grant</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnsecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Debentures to Stifel Financial Capital Trusts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnsecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unsecured Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnsecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Unsecured Debt, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DisclosuresAboutOffsettingAssetsAndLiabilitiesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosures about offsetting assets and liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DisclosuresAboutOffsettingAssetsAndLiabilitiesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disclosures About Offsetting Assets And Liabilities [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DisclosuresAboutOffsettingAssetsAndLiabilitiesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Disclosures About Offsetting Assets and Liabilities</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DepositorySharesEachRepresentingOneByThousandthInterestInShareOfSixPointOneTwoFivePercentageNonCumulativePreferredStockSeriesCPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Depository Shares Each Representing One By Thousandth Interest In Share Of Six Point One Two Five Percentage Non Cumulative Preferred Stock Series C Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DepositorySharesEachRepresentingOneByThousandthInterestInShareOfSixPointOneTwoFivePercentageNonCumulativePreferredStockSeriesCPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Depository Shares, each representing 1/1,000th interest in a share of 6.125% Non-Cumulative Preferred Stock, Series C [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of earned award vested</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProductAndServiceOtherMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Product and Service, Other [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProductAndServiceOtherMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense, Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Senior notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Interest Expense, Debt, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instruments Sold, Not yet Purchased, at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial instruments sold, but not yet purchased, at fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Financial Instruments Sold, Not yet Purchased, at Fair Value, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Sale of Debt Securities, Available-for-Sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from sale of available-for-sale securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SeniorNotes4250Due2024Member_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Senior notes 4.250% due 2024.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SeniorNotes4250Due2024Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Senior Notes4250 Due2024 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SeniorNotes4250Due2024Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Senior notes 4.25% due 2024 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party Transaction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">AOCI Attributable to Parent [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">AOCI Attributable to Parent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unfunded commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative Liability, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative contracts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Derivative Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AmortizationOfLoansAndAdvancesToFinancialAdvisorsAndOtherEmployees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amortization of loans and advances to financial advisors and other employees.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AmortizationOfLoansAndAdvancesToFinancialAdvisorsAndOtherEmployees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortization Of Loans And Advances To Financial Advisors And Other Employees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AmortizationOfLoansAndAdvancesToFinancialAdvisorsAndOtherEmployees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortization of loans and advances to financial advisors and other employees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Assets, Major Class Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Finite-Lived Intangible Assets, Major Class Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfGoodwillAndIntangibleAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Goodwill and Intangible Assets [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfGoodwillAndIntangibleAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of goodwill and intangible assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfGoodwillAndIntangibleAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Goodwill And Intangible Assets [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Treasury Stock, common, shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Treasury Stock, Common, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommissionsPayableToBrokerDealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commission Payable to Broker-Dealer and Clearing Organization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommissionsPayableToBrokerDealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payable to clearing organizations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesTreasuryStockReissued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, Treasury Stock Reissued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesTreasuryStockReissued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock reissued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireLoansHeldForInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payment for Acquisition, Loan, Held-for-Investment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireLoansHeldForInvestment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Purchase of investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PercentageOfEarningsDeferredIntoCompanyStockUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of earnings deferred into company stock units.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PercentageOfEarningsDeferredIntoCompanyStockUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Earnings Deferred Into Company Stock Units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PercentageOfEarningsDeferredIntoCompanyStockUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of earnings deferred into company stock units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfHeldToMaturitySecuritiesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Held-to-Maturity [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfHeldToMaturitySecuritiesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Held To Maturity Securities [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestBearingDepositLiabilitiesDomestic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noninterest-Bearing Deposit Liabilities, Domestic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestBearingDepositLiabilitiesDomestic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Demand deposits (non-interest-bearing)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestBearingDepositLiabilitiesDomestic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Noninterest-bearing Deposit Liabilities, Domestic, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Value, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Preferred Stock, Value, Issued, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Preferred Stock, Value, Issued, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Preferred Stock, Value, Issued, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock - $1 par value; authorized 3,000,000 shares; issued 27,400 shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDebtExtinguishmentCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payment for Debt Extinguishment or Debt Prepayment Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDebtExtinguishmentCosts_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Extinguishment of Stifel Financial Capital Trust</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Maturity Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Debt instrument, maturity date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositsLiabilitiesBalanceSheetReportedAmountsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deposits Liabilities, Balance Sheet, Reported Amounts [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Minimum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Minimum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Instrument</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instrument [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsOwnedOtherAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instruments, Owned, Other, at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsOwnedOtherAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income (Loss), Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Comprehensive Income (Loss), Tax, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other comprehensive income/(loss), tax expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DebtInstrumentTreasuryRateBasisPointsForRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt instrument treasury rate basis points for redemption.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DebtInstrumentTreasuryRateBasisPointsForRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument Treasury Rate Basis Points For Redemption</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DebtInstrumentTreasuryRateBasisPointsForRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redemption at treasury rate basis point</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortization of Intangible Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortization of intangible assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Intangible assets, Amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Amortization of Intangible Assets, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 3 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 3 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsNonrecurringMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Nonrecurring [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsNonrecurringMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value, Measurements, Nonrecurring [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value of Assets and Liabilities Measured on Recurring Basis</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingOtherItemCompositionDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, Other Segment Item, Composition, Description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesFailedToDeliver_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Failed-to-Deliver</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesFailedToDeliver_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities failed to deliver</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubleaseIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sublease Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubleaseIncome_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Sublease income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Balance and Associated Percentage of Each Major Loan Category in Bank Loan Portfolio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestRateContractMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest Rate Contracts [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestRateContractMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Rate Contract [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCompensationShareBasedPaymentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Compensation, Share-Based Payments [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCompensationShareBasedPaymentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred Compensation Plans [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RedemptionPricePercentageOfPrincipalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Redemption price, percentage of principal amount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RedemptionPricePercentageOfPrincipalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Redemption Price Percentage Of Principal Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RedemptionPricePercentageOfPrincipalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redemption price, percentage of principal amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositsPaidForSecuritiesBorrowedAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deposits Paid for Securities Borrowed, at Carrying Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositsPaidForSecuritiesBorrowedAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deposits paid for securities borrowed</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease liabilities, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Total operating lease liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Operating Lease, Liability, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioForecastMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Forecast [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioForecastMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Forecast [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAmortizationAndAccretionNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Depreciation, Amortization and Accretion, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAmortizationAndAccretionNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Depreciation and amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAmortizationAndAccretionNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Depreciation, Amortization and Accretion, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PaymentFromBrokerageCustomersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Payment from brokerage customers.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PaymentFromBrokerageCustomersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payment From Brokerage Customers [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PaymentFromBrokerageCustomersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Brokerage Customers Deposits [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProvisionForOtherCreditLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Provision for Other Credit Losses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProvisionForOtherCreditLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Provision for credit losses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Year Two</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Interest Entity, Primary Beneficiary [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Interest Entity, Primary Beneficiary [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_GeneralSettlementPeriodOfSecuritiesTransactions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General settlement period of securities transactions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_GeneralSettlementPeriodOfSecuritiesTransactions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">General settlement period of securities transactions.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_GeneralSettlementPeriodOfSecuritiesTransactions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General Settlement Period Of Securities Transactions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritizationInterestsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securitization Interests [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritizationInterestsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securitization Interests [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritizationInterestsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">This member stands for securitization interests.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeaseDescriptionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Lease, Description [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeaseDescriptionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lessee Lease Description [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestAndDividendIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest and Dividend Income, Operating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestAndDividendIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestAndDividendIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Interest and Dividend Income, Operating, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ChangeInSecuritiesPurchasedUnderAgreementsToResell_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Change in securities purchased under agreements to resell.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ChangeInSecuritiesPurchasedUnderAgreementsToResell_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change In Securities Purchased Under Agreements To Resell</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ChangeInSecuritiesPurchasedUnderAgreementsToResell_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities purchased under agreements to resell</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Effect of exchange rate changes on cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AuctionRateSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Auction Rate Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AuctionRateSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Auction Rate Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss), Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableGross_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Total risk category of loan portfolio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, before Allowance for Credit Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableGross_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Financing Receivable, before Allowance for Credit Loss, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableGross_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Loans Pledged as Collateral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Held-to-maturity securities, at amortized cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Held-to-maturity securities, at amortized cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, 90 Days or More Past Due, Still Accruing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loans past due 90 days and still accruing interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reconciliation of Assets from Segment to Consolidated [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Information Of Total Assets On Segment Basis</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationAllocationAndClassificationInFinancialStatementsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Recognized Amount [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-term Debt, Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingenciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Contingencies [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingenciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss Contingencies [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Average shares used in basic computation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Weighted Average Number of Shares Outstanding, Basic, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementScenarioAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Scenario [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementScenarioAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prior [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Term loans amortized cost basis by origination year two thousand twenty three.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssetsGrossAmountsOfRecognizedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Offsetting assets gross amounts of recognized assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssetsGrossAmountsOfRecognizedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Assets Gross Amounts Of Recognized Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssetsGrossAmountsOfRecognizedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross amounts of recognized assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Information [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Information [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingExpenseInformationUsedByCodmDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, Expense Information Used by CODM, Description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingencyInformationAboutLitigationMattersAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Contingency, Information about Litigation Matters [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RestrictedStockUnitsPerformanceBasedRestrictedStockUnitsAndRestrictedStockAwardsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Restricted stock units, performance based restricted stock units and restricted stock awards.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RestrictedStockUnitsPerformanceBasedRestrictedStockUnitsAndRestrictedStockAwardsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Stock Units Performance Based Restricted Stock Units And Restricted Stock Awards [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RestrictedStockUnitsPerformanceBasedRestrictedStockUnitsAndRestrictedStockAwardsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted Stock Units, PRSUs, and Restricted Stock Awards [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Available-for-sale Securities, Continuous Unrealized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Available-for-sale Securities, Gross unrealized losses, 12 months or more</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementBusinessSegmentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segments [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementBusinessSegmentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Lived Tangible Asset [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_StifelNicolausWealthAccumulationPlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Stifel Nicolaus wealth accumulation plan.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_StifelNicolausWealthAccumulationPlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stifel Nicolaus Wealth Accumulation Plan [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_StifelNicolausWealthAccumulationPlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SWAP Plan [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetPledgedAsCollateralMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Pledged as Collateral [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetPledgedAsCollateralMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset Pledged as Collateral [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_NumberOfBusinessesWithinOperatingSegment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of businesses within operating segment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_NumberOfBusinessesWithinOperatingSegment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Businesses Within Operating Segment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_NumberOfBusinessesWithinOperatingSegment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of businesses within operating segment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Text Block]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansReceivableFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loans Receivable, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansReceivableFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bank loans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecurityOwnedAndPledgedAsCollateralFairValueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Security owned and pledged as collateral fair value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecurityOwnedAndPledgedAsCollateralFairValueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Owned And Pledged As Collateral Fair Value [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Senior notes, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Long-term Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tier 1 capital, Actual Ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">APIC, Share-Based Payment Arrangement, Increase for Cost Recognition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unit amortization, net of forfeitures</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">APIC, Share-based Payment Arrangement, Increase for Cost Recognition, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net amounts presented in the Statement of Financial Condition, Securities purchased under agreements to resell</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Sold under Agreements to Repurchase</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities sold under agreements to repurchase</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Net amounts presented in the Statement of Financial Condition, Securities purchased under agreements to resell</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Securities Sold under Agreements to Repurchase, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, par value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CommissionsRevenues_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Commissions Revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CommissionsRevenues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commissions Revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CommissionsRevenues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commissions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilitiesCollateralPledged_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Offsetting liabilities, collateral pledged.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilitiesCollateralPledged_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Liabilities Collateral Pledged</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilitiesCollateralPledged_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross amounts not offset in the Statement of Financial Condition, Collateral pledged</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfVariableInterestEntitiesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Aggregate Assets and Liabilities from VIEs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfVariableInterestEntitiesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Variable Interest Entities [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeAndInterestExpenseDisclosureTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income and Interest Expense Disclosure [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeAndInterestExpenseDisclosureTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Components of Interest Income and Interest Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesLoanedAmountNotOffsetAgainstCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Securities loaned amount not offset against collateral.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesLoanedAmountNotOffsetAgainstCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Loaned Amount Not Offset Against Collateral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesLoanedAmountNotOffsetAgainstCollateral_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gross amounts not offset in the Statement of Financial Position, Financial instruments, Securities lending</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Basis of Accounting, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basis Of Presentation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Stockholders' Equity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Held-to-maturity Securities, Gross unrealized losses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationAwardTrancheTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Tranche Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationAwardTrancheTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fifth Year [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfRestructuringDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Type of Restructuring [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Remainder of 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Sold under Agreement to Repurchase, Including Not Subject to Master Netting Arrangement, after Offset and Deduction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Security Sold under Agreement to Repurchase, Including Not Subject to Master Netting Arrangement, after Offset and Deduction, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross amounts not offset in the statement of financial condition, Repurchase agreements, Net amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Increase in securities sold under agreements to repurchase</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesBorrowedAmountNotOffsetAgainstCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Securities borrowed, amount not offset against collateral.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesBorrowedAmountNotOffsetAgainstCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Borrowed Amount Not Offset Against Collateral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesBorrowedAmountNotOffsetAgainstCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross amounts not offset in the Statement of Financial Position, Financial instruments, Securities borrowing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InternalCreditAssessmentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Internal Credit Assessment [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InternalCreditAssessmentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Internal Credit Assessment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FixedIncomeSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fixed Income Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FixedIncomeSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Corporate Fixed Income Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Treasury Stock, Common [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Treasury Stock Common [member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Year Five</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2028</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetInvestmentInLease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net book value of lease assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetInvestmentInLease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Investment in Lease, before Allowance for Credit Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetInvestmentInLease_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net Investment in Lease, before Allowance for Credit Loss, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableAllowanceForCreditLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableAllowanceForCreditLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableAllowanceForCreditLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, Allowance for Credit Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableAllowanceForCreditLosses_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Allowance for credit losses on loans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Measurements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_BrokerageClients_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Brokerage clients.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_BrokerageClients_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Brokerage Clients</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_BrokerageClients_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Brokerage clients</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AgencyMortgageBackedSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Agency mortgage backed securities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AgencyMortgageBackedSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Agency Mortgage Backed Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AgencyMortgageBackedSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Agency Mortgage Backed Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireHeldToMaturitySecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Held-to-Maturity Securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireHeldToMaturitySecurities_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Purchase of held-to-maturity securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForProceedsFromProductiveAssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for (Proceeds from) Productive Assets [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForProceedsFromProductiveAssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payments for:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_US_lbl" xlink:role="http://www.xbrl.org/2003/role/label">UNITED STATES</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_US_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">United States [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfAmortizedCostAndFairValuesOfAvailableForSaleSecuritiesAndHeldToMaturitySecuritiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Amortized Cost and Fair Values of Available for Sale Securities and Held to Maturity Securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfAmortizedCostAndFairValuesOfAvailableForSaleSecuritiesAndHeldToMaturitySecuritiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of amortized cost and fair values of the available for sale securities and held to maturity securities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfAmortizedCostAndFairValuesOfAvailableForSaleSecuritiesAndHeldToMaturitySecuritiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Amortized Cost And Fair Values Of Available For Sale Securities And Held To Maturity Securities Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssetsNetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Offsetting assets, net amount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssetsNetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Assets Net Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssetsNetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Owned and Sold, Not yet Purchased Fair Value, Security Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security Owned and Sold, Not yet Purchased Fair Value, Security Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OutstandingCommitmentsToOriginateLoans_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Outstanding commitments to originate loans.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OutstandingCommitmentsToOriginateLoans_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Outstanding Commitments To Originate Loans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OutstandingCommitmentsToOriginateLoans_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Outstanding commitments to originate loans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherLoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Other loans.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherLoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Loans [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherLoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Tier 1 Risk-Based Capital, Well Capitalized, Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LoansAndLeasesPayableReceivableLoansInProcess_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loans in process/(unapplied loan payments), net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LoansAndLeasesPayableReceivableLoansInProcess_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Loans and leases payable receivable loans in process.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LoansAndLeasesPayableReceivableLoansInProcess_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loans And Leases Payable Receivable Loans In Process</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputDiscountRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input, Discount Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputDiscountRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Measurement Input, Discount Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPayablesToBrokerDealers_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Payable to Broker-Dealer and Clearing Organization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPayablesToBrokerDealers_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Brokers, dealers, and clearing organizations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Year Four</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2027</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Effective Date of Acquisition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Date of acquisition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Term loans amortized cost basis by origination year two thousand twenty four.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtOtherDisclosuresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Debt, Other Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments and Hedging Activities Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingCodmIndividualTitleAndPositionOrGroupOrCommitteeNameExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingencyDamagesAwardedValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Contingency, Damages Awarded, Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingencyDamagesAwardedValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Customer Arbitration Against the Company's Brokerage Subsidiary</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalRequiredToBeWellCapitalized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Total Risk-Based Capital, Well Capitalized, Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalRequiredToBeWellCapitalized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MoodysCRatingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Moody's, C Rating [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MoodysCRatingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">C [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentAdvisoryManagementAndAdministrativeServiceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Advisory, Management and Administrative Service [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentAdvisoryManagementAndAdministrativeServiceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset Management and Service Fees [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentAdvisoryManagementAndAdministrativeServiceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Asset Management [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Other Operating Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Other assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase (Decrease) in Other Operating Assets, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense, Operating and Nonoperating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total interest expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForOriginationOfMortgageLoansHeldForSale_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payment for Origination, Loan, Mortgage, Held-for-Sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForOriginationOfMortgageLoansHeldForSale_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Loans originated as held for sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilitiesAmountsNotOffset_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Offsetting liabilities amounts not offset.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilitiesAmountsNotOffset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Liabilities Amounts Not Offset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilitiesAmountsNotOffset_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gross amounts not offset in the Statement of Financial Position, Financial instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MutualFundMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Mutual Fund [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MutualFundMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Mutual Funds [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Availably-for-sale Securities, debt maturities, after ten years, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Credit Facility [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit Facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_EmployeeRetentionAwardsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee Retention Awards [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_EmployeeRetentionAwardsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Employee retention awards.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueOther_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueOther_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_MoodysAaRatingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Moody's Aa Rating.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_MoodysAaRatingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Moodys Aa Rating [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_MoodysAaRatingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">AA [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InvestmentBankingRevenues_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment Banking Revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InvestmentBankingRevenues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Banking Revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InvestmentBankingRevenues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment banking</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesLoanedFairValueOfCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Loaned, Fair Value of Collateral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesLoanedFairValueOfCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross amounts not offset in the Statement of Financial Position, Collateral pledged, Securities lending</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Sold under Agreement to Repurchase, Subject to Master Netting Arrangement, before Offset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gross amounts of recognized liabilities, Securities purchased under agreements to resell</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Treasury Stock, Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Treasury Stock, Value, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Treasury Stock, Value, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Treasury Stock, Value, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Treasury stock, at cost, 9,715,210 and 9,491,204 shares, respectively</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesPurchasedUnderAgreementsToResell_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Purchased under Agreements to Resell</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesPurchasedUnderAgreementsToResell_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities purchased under agreements to resell</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesPurchasedUnderAgreementsToResell_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net amounts presented in the Statement of Financial Condition, Securities purchased under agreements to resell</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OfficeSpaceAndOfficeEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Office Space and Office Equipment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OfficeSpaceAndOfficeEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Office Space And Office Equipment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OfficeSpaceAndOfficeEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Office space and office equipment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Long-Term Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Long-term Debt, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_NetCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Broker-Dealer, Net Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_NetCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_NetCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Broker-Dealer, Net Capital, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CollateralAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collateral Held [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CollateralAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collateral Held</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesBorrowedNetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Securities borrowed, net amount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesBorrowedNetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Borrowed Net Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesBorrowedNetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Securities borrowed, Net amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PastDueFinancingReceivablesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aging of the Recorded Investment in Past Due Loans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PastDueFinancingReceivablesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, Past Due [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_PartnershipInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partnership Interest [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_PartnershipInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Partnership Interests [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, City or Town</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, City or Town</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageRateDomesticDepositTimeDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Rate Domestic Deposit, Time Deposits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageRateDomesticDepositTimeDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average interest rate on deposits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesNetOfInterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenues, Net of Interest Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesNetOfInterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total net revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesNetOfInterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesNetOfInterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Reportable Segments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of reportable segments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_SecurityExchangeName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Exchange Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_SecurityExchangeName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security Exchange Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Credit Facility [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit Facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CommissionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commissions [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CommissionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commissions [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CommissionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Commissions.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-term Debt, gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestExpenseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noninterest Expense [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestExpenseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-interest expenses:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maximum Exposure to Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PercentageOfAggregateDebitBalances_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of aggregate debit balances.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PercentageOfAggregateDebitBalances_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Aggregate Debit Balances</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PercentageOfAggregateDebitBalances_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate debit balances</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Income from operations before income tax expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Income/(loss) before income taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Financial Instruments Sold, Not yet Purchased</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial instruments sold, but not yet purchased</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Measurement Input Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LoanPledgedAsCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Loan pledged as collateral.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LoanPledgedAsCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loan Pledged As Collateral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LoanPledgedAsCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loans pledged as collateral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InvestmentBankingBacklogMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investment banking backlog.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InvestmentBankingBacklogMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Banking Backlog [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InvestmentBankingBacklogMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment Banking Backlog [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfCustomerInterestRateDerivativesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of customer nterest rate derivatives.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfCustomerInterestRateDerivativesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Customer Interest Rate Derivatives [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfCustomerInterestRateDerivativesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Distribution of Customer Interest Rate Derivative</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialAssetNotPastDueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Asset, Not Past Due [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialAssetNotPastDueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current Balance [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CoreDepositsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Core Deposits [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CoreDepositsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Core Deposits [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable and Accrued Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable and accrued expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accounts Payable and Accrued Liabilities, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Paid, Excluding Capitalized Interest, Operating Activity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash paid for interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByMeasurementBasisAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Basis [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByMeasurementBasisAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Carrying Value [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statistical Measurement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock-based compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Period End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Period End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfPrincipalTransactionsRevenueTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Total Revenues Broken Out by Revenues from Contracts with Customers and Other Sources of Revenue</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfPrincipalTransactionsRevenueTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Principal Transactions Revenue [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_StifelNicolausMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Stifel Nicolaus.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_StifelNicolausMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stifel Nicolaus [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_StifelNicolausMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stifel Nicolaus [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Hierarchy and NAV</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AdvisoryFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Advisory fees.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AdvisoryFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Advisory Fees [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AdvisoryFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Advisory [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Senior Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfMortgageLoans_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Sale of Mortgage Loans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfMortgageLoans_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gains (losses) recognized from sale of loans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Financial Position [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedStockUnitsRSUMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Stock Units (RSUs) [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedStockUnitsRSUMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted Stock Units (RSUs) [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingenciesByNatureOfContingencyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Contingency Nature [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherCountriesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Other countries.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherCountriesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Countries [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OtherCountriesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingencyNatureDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Contingency, Nature [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CollateralizedLoanPortfolio_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Collateralized loan portfolio.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CollateralizedLoanPortfolio_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collateralized Loan Portfolio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CollateralizedLoanPortfolio_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collateralized loan portfolio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VestingAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vesting [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VestingAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Vesting</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_EquityMethodInvestmentOwnershipPercentage1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity method investment percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_EquityMethodInvestmentOwnershipPercentage1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investment, Ownership Percentage 1</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_EquityMethodInvestmentOwnershipPercentage1_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equity Method Investment, Ownership Percentage 1</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InvestmentsInFundsAndPartnershipsMeasuredAtNetAssetValueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investments in funds and partnerships measured at net asset value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InvestmentsInFundsAndPartnershipsMeasuredAtNetAssetValueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments In Funds And Partnerships Measured At Net Asset Value [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InvestmentsInFundsAndPartnershipsMeasuredAtNetAssetValueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments in Funds and Partnerships Measured at NAV [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class of Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfDueFromBrokerDealersAndClearingOrganizationsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of amounts receivable from broker-dealers and clearing organizations, including securities failed to receive, deposits paid for securities borrowed, and receivables from clearing organizations related to open transactions.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfDueFromBrokerDealersAndClearingOrganizationsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Due From Broker Dealers And Clearing Organizations Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfDueFromBrokerDealersAndClearingOrganizationsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amounts Receivable from Brokers, Dealers, and Clearing Organizations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of available for sale securities whose amortized costs exceeded their fair values</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingencyRangeOfPossibleLossPortionNotAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Possible aggregate loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingencyRangeOfPossibleLossPortionNotAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Contingency, Range of Possible Loss, Portion Not Accrued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DerivativeInstrumentsMaturityInFifteenYearsAndThereafter_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Derivative instruments maturity, in fifteen years and thereafter.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DerivativeInstrumentsMaturityInFifteenYearsAndThereafter_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments Maturity, in Fifteen Years and Thereafter</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DerivativeInstrumentsMaturityInFifteenYearsAndThereafter_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fifteen years and thereafter</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Receivables</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loans and advances to financial advisors and other employees, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInTradingSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Debt Securities, Trading, and Equity Securities, FV-NI</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInTradingSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase (Decrease) in Debt Securities, Trading, and Equity Securities, FV-NI, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInTradingSecurities_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Financial instruments owned</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivablesPeriodPastDueDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Asset, Aging [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivablesPeriodPastDueDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Asset, Aging</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Deposits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase (Decrease) in Deposits, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Increase in bank deposits, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityBasedArrangementsIndividualContractsTypeOfDeferredCompensationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityBasedArrangementsIndividualContractsTypeOfDeferredCompensationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfDepositsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of deposits.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfDepositsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Deposits Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfDepositsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Deposits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_USGovernmentDebtSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">US Government Debt Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_USGovernmentDebtSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">U.S. Government Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instruments [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Year One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Held-to-maturity Securities, debt maturities, within one year, Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CollateralPledgedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collateral Pledged [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CollateralPledgedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Pledged [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RestrictedStockAwardMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Restricted stock award.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RestrictedStockAwardMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Stock Award [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RestrictedStockAwardMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted Stock Award [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Service period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Liability, Statement of Financial Position [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year Two</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2027</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TwoThousandAndTwentyOneCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">2021 Credit Facility.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TwoThousandAndTwentyOneCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand And Twenty One Credit Facility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TwoThousandAndTwentyOneCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revolving Credit Facility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Risk Category of Loan Portfolio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable Credit Quality Indicators [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Assets, Gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross Carrying Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Finite-Lived Intangible Assets, Gross, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Available-for-sale Securities, Gross unrealized losses, Less than 12 months</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Average shares used in diluted computation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Act File Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity File Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_FinancingReceivableBeforeAllowanceForCreditLossToTotalPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross bank loans, Percent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_FinancingReceivableBeforeAllowanceForCreditLossToTotalPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, before Allowance for Credit Loss, to Total, Percent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyDepositLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Deposit Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyDepositLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deposits of related parties</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfLeasedAssetsNetOperatingLeases_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Sale of Leased Assets, Net, Operating Leases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfLeasedAssetsNetOperatingLeases_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gains on sale of leased aircraft engines</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Assets, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CoverAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cover [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt and Equity Securities, FV-NI [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Trading Securities And Other Trading Assets [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_UnusedLinesOfCreditToCommercialAndConsumerBorrowers_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Unused lines of credit to commercial and consumer borrowers.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_UnusedLinesOfCreditToCommercialAndConsumerBorrowers_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unused Lines Of Credit To Commercial And Consumer Borrowers</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_UnusedLinesOfCreditToCommercialAndConsumerBorrowers_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unused lines of credit to commercial and consumer borrowers</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Measurement Input Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfCarryingValuesAndEstimatedFairValuesOfDebtInstrumentsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfCarryingValuesAndEstimatedFairValuesOfDebtInstrumentsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Fair Value of Financial Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Total Risk-Based Capital Ratio, Capital Adequacy, Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total capital For Capital Adequacy Purposes, Ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivablesPeriodPastDueAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Asset, Aging [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivablesPeriodPastDueAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Asset, Aging</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LineOfCreditFacilityExpirationMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Line of credit facility expiration month and year.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LineOfCreditFacilityExpirationMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line Of Credit Facility Expiration Month And Year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LineOfCreditFacilityExpirationMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit facility expiration date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTypeCategorizationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTypeCategorizationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OffsettingAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Assets [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OffsettingAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Offsetting Assets [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestBearingDepositLiabilitiesDomestic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest-Bearing Deposit Liabilities, Domestic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestBearingDepositLiabilitiesDomestic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Demand deposits (interest-bearing)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestBearingDepositLiabilitiesDomestic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Interest-bearing Deposit Liabilities, Domestic, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HomeEquityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Home Equity Line of Credit [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HomeEquityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Home Equity Lines Of Credit [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioUnspecifiedDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Scenario [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioUnspecifiedDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Scenario</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfOperatingSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Operating Segments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfOperatingSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of business segments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segment Reporting</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MortgageBackedSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collateralized Mortgage-Backed Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MortgageBackedSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Agency Mortgage-Backed Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MortgageBackedSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Mortgage-Backed Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesLoaned_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Loaned</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesLoaned_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Net amounts presented in the Statement of Financial Condition, Securities lending</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesLoaned_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Securities Loaned, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StandbyLettersOfCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Standby Letters of Credit [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StandbyLettersOfCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Standby Letters of Credit [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PaymentOfContingentConsideration_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Payment of contingent consideration.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PaymentOfContingentConsideration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payment Of Contingent Consideration</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PaymentOfContingentConsideration_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Payment of contingent consideration</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnusedLinesOfCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unused lines of Credit [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnusedLinesOfCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unused Lines Of Credit [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Maturities, Prepayments and Calls of Held-to-Maturity Securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Principal paydowns, maturities, and calls of held-to-maturity securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Debt, Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Short-term Debt, Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Assets, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Finite-Lived Intangible Assets, Net, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Finite-Lived Intangible Assets, Net, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Future Amortization Expense Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AlternativeExcessNetCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Broker-Dealer, Excess Net Capital, Alternative Standard</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AlternativeExcessNetCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Excess of minimum required net capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AlternativeExcessNetCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Broker-Dealer, Excess Net Capital, Alternative Standard, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Total Risk-Based Capital Ratio, Well Capitalized, Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PledgedStatusDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Pledged Status [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Debt, Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Short-term Debt, Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Information About Operating Lease Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DueToAndFromBrokerDealersAndClearingOrganizationsDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Due to and from Broker-Dealers and Clearing Organizations Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DueToAndFromBrokerDealersAndClearingOrganizationsDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Receivables From and Payables to Brokers, Dealers, and Clearing Organizations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Awards vesting period in years</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfAvailableForSaleAndHeldToMaturitySecuritiesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of available for sale and held to maturity securities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfAvailableForSaleAndHeldToMaturitySecuritiesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Available For Sale And Held To Maturity Securities [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfAvailableForSaleAndHeldToMaturitySecuritiesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Available For Sale And Held To Maturity Securities [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Contract with Customer, Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerAsset_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Brokerage clients</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PunitiveDamagesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Punitive Damages [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PunitiveDamagesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Punitive damages.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PunitiveDamagesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Punitive Damages [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CarryingReportedAmountFairValueDisclosureMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reported Value Measurement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CarryingReportedAmountFairValueDisclosureMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Carrying Value [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance of Long-Term Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional issuance of long-term debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Proceeds from Issuance of Long-term Debt, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilityInterestRateContractsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Offsetting liability interest rate contracts net.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilityInterestRateContractsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Liability Interest Rate Contracts Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilityInterestRateContractsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Offsetting liability interest rate contracts net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Transition Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Transition Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesSoldUnderAgreementsToRepurchaseAmountNotOffset_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Securities sold under agreements to repurchase amount not offset.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesSoldUnderAgreementsToRepurchaseAmountNotOffset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Sold Under Agreements To Repurchase Amount Not Offset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesSoldUnderAgreementsToRepurchaseAmountNotOffset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross amounts not offset in the Statement of Financial Position, Financial instruments, Securities purchased under agreements to resell</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Held-to-Maturity, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Held-to-maturity securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Held-to-maturity Securities, debt maturities, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Held-to-maturity securities, Estimated fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Offsetting assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net amounts presented in the Statements of Financial Condition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AllowanceForCreditLossesOnUnfundedLendingCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Allowance For Credit Losses On Unfunded Lending Commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AllowanceForCreditLossesOnUnfundedLendingCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Allowance for credit losses on unfunded lending commitments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AllowanceForCreditLossesOnUnfundedLendingCommitments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Allowance for credit losses on unfunded lending commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeasesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Leases [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeasesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating Leases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for Repurchase of Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Repurchase of common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncompeteAgreementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncompete Agreements [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncompeteAgreementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-Compete Agreements [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Comprehensive income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Cash Flows [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DerivativeInstrumentsMaturityInNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Derivative Instruments Maturity, in Next twelve months.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DerivativeInstrumentsMaturityInNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments Maturity, in Next twelve Months</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DerivativeInstrumentsMaturityInNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Within one year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfInterestRateDerivativesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Interest Rate Derivatives [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfInterestRateDerivativesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Fair Values of Derivative Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, New Issues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of preferred stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Issuance of preferred stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfEstimatedFairValuesAndFairValueHierarchyOfFinancialInstrumentsNotRecordedOrMeasuredAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Estimated Fair Values and Fair Value Hierarchy of Financial Instruments not Recorded or Measured at Fair Value [Table TextBlock]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfEstimatedFairValuesAndFairValueHierarchyOfFinancialInstrumentsNotRecordedOrMeasuredAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of estimated fair values and fair value hierarchy of financial instruments not recorded or measured at fair value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfEstimatedFairValuesAndFairValueHierarchyOfFinancialInstrumentsNotRecordedOrMeasuredAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Estimated Fair Values and Fair Value Hierarchy of Financial Instruments not Recorded or Measured at Fair Value on a Nonrecurring Basis</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecuritiesDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Trading</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecuritiesDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trading securities owned</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BrokerageCommissionsRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Brokerage Commissions Revenue</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BrokerageCommissionsRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commissions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssetStatementOfFinancialPositionExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Asset, Statement of Financial Position [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_UncommittedSecuredLinesOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Uncommitted secured lines of credit.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_UncommittedSecuredLinesOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Uncommitted Secured Lines Of Credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_UncommittedSecuredLinesOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Uncommitted secured lines of credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shareholders' Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts and Financing Receivables [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Accounts Notes Loans And Financing Receivable [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedSalariesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Salaries</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedSalariesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Finite-Lived Intangible Assets [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Assets [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings Per Share ("EPS")</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesLoanedGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Loaned, Subject to Master Netting Arrangement, before Offset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesLoanedGross_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gross amounts of recognized liabilities, Securities lending</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net Income (Loss) Attributable to Parent, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseDomesticDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense, Domestic Deposits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseDomesticDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bank deposits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseDomesticDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Interest Expense, Domestic Deposits, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PriorToFebruaryFifteenTwentyThirtyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Prior to February 15, 2030.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PriorToFebruaryFifteenTwentyThirtyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prior To February Fifteen Twenty Thirty [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PriorToFebruaryFifteenTwentyThirtyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prior to February 15, 2030 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LoansReceivableHeldForInvestmentNetNotPartOfDisposalGroupMortgage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Loans receivable held for investment net not part of disposal group mortgage.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LoansReceivableHeldForInvestmentNetNotPartOfDisposalGroupMortgage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loans Receivable Held For Investment Net Not Part Of Disposal Group Mortgage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LoansReceivableHeldForInvestmentNetNotPartOfDisposalGroupMortgage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Held for investment, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LoansReceivableHeldForInvestmentNetNotPartOfDisposalGroupMortgage_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Loans held for investment, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPreferredStockCash_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends, Preferred Stock, Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPreferredStockCash_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Dividends declared, Preferred</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OffsettingLiabilitiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Liabilities [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OffsettingLiabilitiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Liabilities and Derivative Liabilities that are Subject to Offset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_WeightedAverageInterestRateOnBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Weighted average interest rate on borrowings.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_WeightedAverageInterestRateOnBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Interest Rate On Borrowings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_WeightedAverageInterestRateOnBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average interest rate on borrowings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CashAndCashEquivalentsAndCashSegregatedForRegulatoryPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total cash, cash equivalents, and cash segregated for regulatory purposes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CashAndCashEquivalentsAndCashSegregatedForRegulatoryPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash And Cash Equivalents And Cash Segregated For Regulatory Purposes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CashAndCashEquivalentsAndCashSegregatedForRegulatoryPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cash and cash equivalents and cash segregated for regulatory purposes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CashAndCashEquivalentsAndCashSegregatedForRegulatoryPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Cash, cash equivalents, and cash segregated for regulatory purposes at beginning of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CashAndCashEquivalentsAndCashSegregatedForRegulatoryPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Cash, cash equivalents, and cash segregated for regulatory purposes at end of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CashAndCashEquivalentsAndCashSegregatedForRegulatoryPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total cash, cash equivalents, and cash segregated for regulatory purposes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CashEquivalentsMeasuredAtNetAssetValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cash equivalents measured at net asset value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CashEquivalentsMeasuredAtNetAssetValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Equivalents Measured At Net Asset Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CashEquivalentsMeasuredAtNetAssetValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash equivalents measured at NAV</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Assets, Net (Excluding Goodwill)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Intangible assets, Ending balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Intangible assets, Beginning balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Intangible assets, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Intangible Assets, Net (Excluding Goodwill), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Intangible assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeasePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeasePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease cash flows</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PerformanceBasedRestrictedStockUnitsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Performance-based restricted stock units.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PerformanceBasedRestrictedStockUnitsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Performance Based Restricted Stock Units [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PerformanceBasedRestrictedStockUnitsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Performance-based Restricted Stock Units [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loans [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loans [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Syndicated Loans [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PercentageAvailableForSaleSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Available for Sale Securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PercentageAvailableForSaleSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage Available for Sale Securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_PercentageAvailableForSaleSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage available for sale securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InterestIncomeExpenseOther_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Interest (income) expense other.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InterestIncomeExpenseOther_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income Expense Other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InterestIncomeExpenseOther_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Year Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Fiscal Year Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SovereignDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sovereign Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SovereignDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sovereign Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Assets [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other Assets [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualShareBasedPaymentsByTypeOfDeferredCompensationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualShareBasedPaymentsByTypeOfDeferredCompensationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Flows From Investing Activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilitiesGrossAmountsOfRecognizedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Offsetting liabilities, gross amounts of recognized liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilitiesGrossAmountsOfRecognizedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Liabilities Gross Amounts Of Recognized Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilitiesGrossAmountsOfRecognizedLiabilities_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gross amounts of recognized liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnfundedLoanCommitmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unfunded Loan Commitment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnfundedLoanCommitmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unfunded Commitment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments of Ordinary Dividends, Preferred Stock and Preference Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Cash dividends on preferred stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Tier 1 Leverage Capital Ratio, Well Capitalized, Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Available-for-Sale and Held-to-Maturity Securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllOtherSegmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Operating Segment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllOtherSegmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllOtherSegmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Other Segments [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CustomerSecuritiesForWhichEntityHasRightToSellOrRepledgeFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Customer Securities for which Entity has Right to Sell or Repledge, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CustomerSecuritiesForWhichEntityHasRightToSellOrRepledgeFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of securities accepted as collateral permitted to sell or repledge</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFairValueOffBalanceSheetRisksTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, off-Balance-Sheet Risk [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFairValueOffBalanceSheetRisksTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Fair Value Off Balance Sheet Risks [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Revenue</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred Revenue</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Deferred Revenue, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net change</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnInvestmentsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Gross Unrealized Losses and Estimated Fair Value by Length of Time</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnInvestmentsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrealized Gain (Loss) on Investments [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Asset, Expected Amortization, Year One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2026</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AcquiredTechnologyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Acquired technology.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AcquiredTechnologyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Acquired Technology [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AcquiredTechnologyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquired Technology [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CompensatingBalanceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Compensating balances</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CompensatingBalanceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Compensating Balance, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrivateEquityFundsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Equity Funds [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrivateEquityFundsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Private Equity Funds [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ComputationOfNetCapitalUnderSecuritiesAndExchangeCommissionRegulationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Broker-Dealer, Net Capital Requirement, SEC Regulation [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ComputationOfNetCapitalUnderSecuritiesAndExchangeCommissionRegulationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Regulatory Capital Requirements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_CA_lbl" xlink:role="http://www.xbrl.org/2003/role/label">CANADA</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_CA_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Canada [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OffsettingAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Assets [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OffsettingAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Assets and Derivative Assets that are Subject to Offset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FinancingReceivableRecordedInvestmentNonaccrualStatusRestructuredLoansAndNonperformingLoansWithNoAllowance_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Financing receivable recorded investment nonaccrual status restructured loans and nonperforming loans with no allowance.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FinancingReceivableRecordedInvestmentNonaccrualStatusRestructuredLoansAndNonperformingLoansWithNoAllowance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable Recorded Investment Nonaccrual Status Restructured Loans And Nonperforming Loans With No Allowance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FinancingReceivableRecordedInvestmentNonaccrualStatusRestructuredLoansAndNonperformingLoansWithNoAllowance_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2026</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Finite lived intangible assets amortization expense after year four.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite Lived Intangible Assets Amortization Expense After Year Four</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Thereafter</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_IncentiveStockPlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Incentive stock plan.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_IncentiveStockPlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incentive Stock Plan [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_IncentiveStockPlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Incentive Stock Plan [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesBorrowedFairValueOfCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Borrowed, Fair Value of Collateral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesBorrowedFairValueOfCollateral_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gross amounts not offset in the Statement of Financial Position, Collateral received, Securities borrowing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Available to Common Stockholders, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net income available to common shareholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Interest [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Line of Credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Outstanding credit facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Long-term Line of Credit, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentRiskAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instrument [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrecognized compensation expense related to non-vested options</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositLiabilitiesDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deposit Liabilities Disclosures [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositLiabilitiesDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bank Deposits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_MoodysNrRatingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Moodys NR Rating.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_MoodysNrRatingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Moodys NR Rating [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_MoodysNrRatingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">NR [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Operating Liabilities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Increase/(decrease) in operating liabilities, net of liabilities assumed:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Regulatory Capital Requirement, Compliance [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Revenues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Revenues_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash used in investing activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssetsAmountsNotOffset_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Offsetting assets, amounts not offset.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssetsAmountsNotOffset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Assets Amounts Not Offset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssetsAmountsNotOffset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross amounts not offset in the Statement of Financial Position</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssetsAmountsNotOffset_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gross amounts not offset in the Statement of Financial Position</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TwoThousandAndTwentyThreeCreditAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TwoThousandAndTwentyThreeCreditAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand and Twenty Three Credit Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TwoThousandAndTwentyThreeCreditAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two thousand and twenty three credit agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Pass [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Pass [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Title of 12(b) Security</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Title of 12(b) Security</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Segment Reporting Information, by Segment [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Segment Reporting Information By Segment [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments and Hedging Activities Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative Instruments and Hedging Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MoneyMarketFundsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Money Market Funds [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MoneyMarketFundsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Money Market Funds [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisRealizedAssetGainLossIncludedInEarnings_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair value measurement with unobservable inputs reconciliation recurring basis realized asset gain loss included in earnings.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisRealizedAssetGainLossIncludedInEarnings_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Realized Asset Gain Loss Included In Earnings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisRealizedAssetGainLossIncludedInEarnings_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Realized gains/(losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, after Year Five</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Thereafter</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleAllowanceForCreditLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Allowance for Credit Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleAllowanceForCreditLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Debt Securities, Available-for-Sale, Allowance for Credit Loss, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleAllowanceForCreditLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Debt Securities, Available-for-Sale, Allowance for Credit Loss, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleAllowanceForCreditLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt Securities, Available-for-Sale, Allowance for Credit Loss, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleAllowanceForCreditLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Allowance for credit losses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Fair Value of Investments in and Unfunded Commitments to Funds Measured at Net Asset Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfAmortizedCostOfHeldToMaturitySecuritiesClassifiedByCreditQualityIndicators1TableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of amortized cost of held-to-maturity securities classified by credit quality indicators.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfAmortizedCostOfHeldToMaturitySecuritiesClassifiedByCreditQualityIndicators1TableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Amortized Cost Of Held To Maturity Securities Classified By Credit Quality Indicators1 Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfAmortizedCostOfHeldToMaturitySecuritiesClassifiedByCreditQualityIndicators1TableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Amortized Cost of Held-to-Maturity Securities by Credit Quality Indicator</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Remainder of 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Information [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Information [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRedemptionPeriodDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Redemption, Period [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRedemptionPeriodDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument, Redemption, Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalRequiredForCapitalAdequacy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalRequiredForCapitalAdequacy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total capital For Capital Adequacy Purposes, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ConsolidatedEntitiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidated Entities [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ConsolidatedEntitiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consolidated Entities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilitiesNetAmountsPresentedInStatementOfFinancialCondition_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Offsetting liabilities, net amounts presented in the statement of financial condition.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilitiesNetAmountsPresentedInStatementOfFinancialCondition_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Liabilities Net Amounts Presented In Statement Of Financial Condition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilitiesNetAmountsPresentedInStatementOfFinancialCondition_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Net amounts presented in the Statement of Financial Condition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LegalEntityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Legal Entity [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LegalEntityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Legal Entity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Available-for-sale Securities, debt maturities, after one year through five, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Decrease/(increase) in operating assets, net of assets acquired:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LettersOfCreditOutstandingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Letters of Credit Outstanding, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LettersOfCreditOutstandingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Letters of credit outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TimeDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Time Deposits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TimeDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Certificates of deposit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TimeDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total certificates of deposit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Tier 1 Leverage Capital Ratio, Capital Adequacy, Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tier 1 leverage For Capital Adequacy Purposes, Ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Recurring and Nonrecurring [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid-in Capital [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional Paid-in Capital [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalToRiskWeightedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Total Risk-Based Capital Ratio, Actual</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalToRiskWeightedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total capital, Actual Ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommercialMortgageBackedSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commercial [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Held-to-maturity Securities, debt maturities, after five through ten years, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementFrequencyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Measurement Frequency</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Income Location, Balance [Axis]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">New Accounting Pronouncements or Change in Accounting Principle [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesFromCustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receivable from Customer in Brokerage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesFromCustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Brokerage clients, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesPurchasedUnderAgreementsToResellAmountsNotOffset_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Securities purchased under agreements to resell, amounts not offset.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesPurchasedUnderAgreementsToResellAmountsNotOffset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Purchased Under Agreements To Resell Amounts Not Offset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesPurchasedUnderAgreementsToResellAmountsNotOffset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross amounts not offset in the Statement of Financial Position, Financial instruments, Securities purchased under agreements to resell</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trading Symbol</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trading Symbol</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRisksTypesNoConcentrationPercentageAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risks, Types, No Concentration Percentage [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Finite Lived Intangible Assets [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Available-for-sale Securities, debt maturities, within one year, Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Tier 1 Risk-Based Capital Ratio, Well Capitalized, Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_BryanGarnierMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bryan Garnier [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_BryanGarnierMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Bryan Garnier [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_BryanGarnierMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Bryan garnier.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearAndRevolvingLoansAmortizedCostBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Term loans amortized cost basis by origination year and revolving loans amortized cost basis.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearAndRevolvingLoansAmortizedCostBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Term Loans Amortized Cost Basis By Origination Year And Revolving Loans Amortized Cost Basis Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearAndRevolvingLoansAmortizedCostBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Term Loans Amortized Cost Basis by Origination Year and Revolving Cost Amortized Cost Basis</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AlternativeNetCapitalRequirement1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Broker-Dealer, Minimum Net Capital Required, Alternative Standard</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AlternativeNetCapitalRequirement1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net capital under the alternative method</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AlternativeNetCapitalRequirement1_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Broker-Dealer, Minimum Net Capital Required, Alternative Standard, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Finite-Lived Intangible Assets [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Intangible Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, Allowance for Credit Loss [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Activity in the Allowance for Credit Losses on Loans by Portfolio Segment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Flows From Financing Activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ExecutiveOfficersAndDirectorsOfCertainAffiliatedEntitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Executive officers and directors of certain affiliated entities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ExecutiveOfficersAndDirectorsOfCertainAffiliatedEntitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Executive Officers And Directors Of Certain Affiliated Entities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ExecutiveOfficersAndDirectorsOfCertainAffiliatedEntitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Executive Officers and Directors of Certain Affiliated Entities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsRecurringMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value, Recurring [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsRecurringMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Recurring [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualCashAwardGrantedAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualCashAwardGrantedAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash awards, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total undiscounted lease payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsSoldNotYetPurchasedCorporateDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instruments Sold, Not yet Purchased, Corporate Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsSoldNotYetPurchasedCorporateDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fixed income securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNumberOfAircraftSold_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of engines sold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNumberOfAircraftSold_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment, Number of Aircraft Sold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate201613Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update 2016-13 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, Undiscounted Excess Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Imputed interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Components [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Components</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FundBankingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fund banking.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FundBankingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fund Banking [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Component [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Component</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByAssetClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Class [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByAssetClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset Class</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receivable from Broker-Dealer and Clearing Organization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Brokers, dealers, and clearing organizations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Receivables from brokers, dealers and clearing organizations, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill and Intangible Assets Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reconciliation of Revenue from Segments to Consolidated [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Net Revenues Earned On Major Geographical Areas</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TimeDepositsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Certificates of deposit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TimeDepositsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Time Deposits, at Carrying Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_BankDepositsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Bank deposits.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_BankDepositsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Bank Deposits [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_BankDepositsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bank Deposits [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Investments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Investments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tier 1 capital For Capital Adequacy Purposes, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Available-for-sale Securities, debt maturities, after five year through ten years, Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lease Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Lease Income, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositsReceivedForSecuritiesLoanedAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deposits Received for Securities Loaned, at Carrying Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositsReceivedForSecuritiesLoanedAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deposits received from securities loaned</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LineOfCreditFacilitySublimit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Line of credit facility sublimit.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LineOfCreditFacilitySublimit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility Sublimit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LineOfCreditFacilitySublimit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit facility sublimit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SyndicatedLoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Syndicated Loans [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SyndicatedLoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Syndicated loans.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SyndicatedLoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Syndicated Loans [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_NonCompensationOperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Non Compensation Operating Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_NonCompensationOperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Non compensation operating expenses.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_NonCompensationOperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-compensation operating expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Comprehensive Income [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrincipalTransactionsRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Principal Transactions Revenue, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrincipalTransactionsRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Principal transactions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrincipalTransactionsRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Principal Transactions Revenue, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentNonconsolidatedInvesteeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investment, Nonconsolidated Investee [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maximum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maximum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SixAircraftEngineMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Six Aircraft Engine [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SixAircraftEngineMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Six aircraft engine.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SixAircraftEngineMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Six Aircraft Engine [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CorporateEquitySecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Corporate equity securities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CorporateEquitySecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Corporate Equity Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CorporateEquitySecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Corporate Equity Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total, Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statistical Measurement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Assets, Accumulated Amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated Amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TimeDepositMaturitiesYearOne_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Certificates of deposit greater, due within one year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TimeDepositMaturitiesYearOne_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Time Deposit Maturities, Year One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilitiesNetAmount_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Net amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilitiesNetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Offsetting liabilities, net amount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingLiabilitiesNetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Liabilities Net Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AssetManagementRevenues_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Asset management Revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AssetManagementRevenues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset management Revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AssetManagementRevenues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset management</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DueFromRelatedPartiesNoncurrent1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Due From Related Parties Noncurrent 1</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DueFromRelatedPartiesNoncurrent1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loans outstanding amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DueFromRelatedPartiesNoncurrent1_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Due from related parties noncurrent.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Value, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Common Stock, Value, Issued, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Common Stock, Value, Issued, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Common Stock, Value, Issued, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock - $0.15 par value; authorized 194,000,000 shares; issued 111,662,735 and 111,662,571 shares, respectively</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_MoodysBbbRatingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Moodys bbb rating.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_MoodysBbbRatingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Moodys Bbb Rating [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_MoodysBbbRatingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">BBB [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityExpirationDate1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit agreement maturity date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityExpirationDate1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Expiration Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, Allowance for Credit Loss [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Financing Receivable Allowance For Credit Losses [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfTheVariableInterestEntitiesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule Of The Variable Interest Entities Text Block</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfTheVariableInterestEntitiesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of The Variable Interest Entities Text Block</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ScheduleOfTheVariableInterestEntitiesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Interest Entities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConsolidationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidation, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConsolidationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consolidation Policies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Balance, end of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Balance, beginning of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendsIncomeStatementImpact_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock Dividends, Income Statement Impact</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendsIncomeStatementImpact_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred dividends</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FederalHomeLoanBankAdvancesFloatingRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Federal Home Loan Bank, Advances, Floating Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FederalHomeLoanBankAdvancesFloatingRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Federal Home Loan Bank Advances Floating Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FederalHomeLoanBankAdvancesFloatingRate_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Federal Home Loan Bank, Advances, Floating Rate, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortization Expense in Future Periods</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Indefinite-Lived Intangible Assets, Translation and Purchase Accounting Adjustments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Intangible assets, Adjustments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssetsCollateralReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Offsetting assets, collateral received.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssetsCollateralReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Assets Collateral Received</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssetsCollateralReceived_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gross amounts not offset in the Statement of Financial Position, Collateral received</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueOffBalanceSheetRisksDisclosureInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueOffBalanceSheetRisksDisclosureInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, shares authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Assets by Major Class [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Finite-Lived Intangible Assets by Major Class</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Held-to-maturity Securities, debt maturities, after ten years, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payment, Tax Withholding, Share-Based Payment Arrangement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Tax payments related to shares withheld for stock-based compensation plans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Available-for-sale Securities, Continuous</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Available-for-sale Securities, Gross unrealized losses, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AfterFebruaryFifteenTwentyThirtyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">After February 15, 2030.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AfterFebruaryFifteenTwentyThirtyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">After February Fifteen Twenty Thirty [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AfterFebruaryFifteenTwentyThirtyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">After February 15, 2030 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_CreditRatingMoodysAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Credit Rating, Moody's [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_CreditRatingMoodysAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit Rating, Moody's</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnderlyingAssetClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Underlying Asset Class [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnderlyingAssetClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Underlying Asset Class</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InformationByCategoryOfDebtSecurityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Security Category [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InformationByCategoryOfDebtSecurityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Security Category</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsNotesAndLoansReceivableLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts, Notes, Loans and Financing Receivable [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsNotesAndLoansReceivableLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts, Notes, Loans and Financing Receivable [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue from Contract with Customer [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenues from Contracts with Customers</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Registrant Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Registrant Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Borrowings and Federal Home Loan Bank Advances</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Available-for-sale securities, Gross unrealized losses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DerivativeInstrumentsMaturityInTenToFifteenYears_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Derivative instruments maturity, in ten to fifteen years.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DerivativeInstrumentsMaturityInTenToFifteenYears_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments Maturity, in Ten to Fifteen Years</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DerivativeInstrumentsMaturityInTenToFifteenYears_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ten to fifteen years</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Asset, Expected Amortization, Year Two</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2027</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FlightEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Flight Equipment, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FlightEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net book value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FlightEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Flight Equipment, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockSharesAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Number of shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockSharesAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Treasury Stock, Shares, Acquired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockSharesAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Treasury stock acquired, Shares,</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid in Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional paid-in-capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Additional Paid in Capital, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Additional Paid in Capital, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Additional Paid in Capital, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TenAircraftEngineMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ten Aircraft Engine [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TenAircraftEngineMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Ten aircraft engine.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BankingAndThriftInterestAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking and Thrift, Interest [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FourAircraftEngineMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Four Aircraft Engine [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FourAircraftEngineMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Four aircraft engine.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ConsolidatedEntitiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidated Entities [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ConsolidatedEntitiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consolidated Entities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Asset, Expected Amortization, Year Three</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2028</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Expense (Benefit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Provision for income taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Income Tax Expense (Benefit), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByMeasurementFrequencyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Frequency [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByMeasurementFrequencyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value, Measurements, Nonrecurring [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockDividendsPerShareCashPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Dividends, Per Share, Cash Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockDividendsPerShareCashPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash dividends paid per common share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireProductiveAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Productive Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireProductiveAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Purchase of fixed assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireProductiveAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Payments to Acquire Productive Assets, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Common Stock, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Entity Common Stock, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_USStatesAndPoliticalSubdivisionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">State and Municipal Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_USStatesAndPoliticalSubdivisionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">US States and Political Subdivisions Debt Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_USStatesAndPoliticalSubdivisionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">State and Municipal Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByLiabilityClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liability Class [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByLiabilityClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liability Class</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated other comprehensive loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accumulated Other Comprehensive Income (Loss), Net of Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accumulated Other Comprehensive Income (Loss), Net of Tax, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Gain (Loss) on Investments, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gains on sale of investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Aggregate Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RegulatoryCapitalRequirementsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Financing Receivable [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class of Financing Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RatioOfIndebtednessToNetCapital1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ratio of Indebtedness to Net Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RatioOfIndebtednessToNetCapital1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ratio of indebtedness to net capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, Past Due [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financing Receivable Recorded Investment Past Due [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Income Tax Expense (Benefit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred income taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Deferred Income Tax Expense (Benefit), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentBankingRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Banking Revenue</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentBankingRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment banking</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DailyBorrowingsUnderCreditArrangements_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Daily borrowings under credit arrangements.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DailyBorrowingsUnderCreditArrangements_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Daily Borrowings Under Credit Arrangements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DailyBorrowingsUnderCreditArrangements_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Daily borrowings under our uncommitted secured lines</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesBasedLoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Securities based loans.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesBasedLoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Based Loans [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SecuritiesBasedLoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities-Based Loans [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AttorneysFeesAndCostsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Attorneys' Fees and Costs [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AttorneysFeesAndCostsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Attorneys&#8217; fees and costs.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AttorneysFeesAndCostsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Attorneys' Fees and Costs [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tier 1 leverage For Capital Adequacy Purposes, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Earnings Per Share, Diluted, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_DraftsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Broker-Dealer, Draft Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_DraftsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Drafts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, Nonaccrual</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-Accrual</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Non-accrual</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SeniorNotes400Due2030Member_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Senior Notes 4.00 Due 2030.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SeniorNotes400Due2030Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Senior Notes400 Due2030 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SeniorNotes400Due2030Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Senior notes 4.00% due 2030 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SeniorNotes400Due2030Member_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Senior notes 4.00% due 2030 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">City Area Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">City Area Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income (Loss), Net of Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total other comprehensive income/(loss), net of tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProvisionForLoanLossesExpensed_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Provision</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProvisionForLoanLossesExpensed_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, Credit Loss, Expense (Reversal)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DerivativeInstrumentsMaturityInFiveToTenYears_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Derivative instruments maturity, in five to ten years.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DerivativeInstrumentsMaturityInFiveToTenYears_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments Maturity, in Five to Ten Years</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DerivativeInstrumentsMaturityInFiveToTenYears_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Five to ten years</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Term loans amortized cost basis by origination year two thousand twenty one.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_WrittenOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Written options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_WrittenOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Written options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_WrittenOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Written options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Investments Entities That Calculate Net Asset Value Per Share [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Deposits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deposits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Deposits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bank deposits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Deposits_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Bank deposits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommercialRealEstateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commercial Real Estate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommercialRealEstateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commercial Real Estate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseFairValueOfCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Fair value of securities pledged as collateral to counterparty</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseFairValueOfCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Sold under Agreements to Repurchase, Fair Value of Collateral</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseFairValueOfCollateral_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross amounts not offset in the Statement of Financial Position, Collateral pledged, Securities purchased under agreements to resell</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Intangible Assets and Goodwill [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Carrying Amount of Goodwill and Intangible Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Maximum Borrowing Capacity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Committed revolving credit facility with bank and broker dealer - subsidiary</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialAssetPastDueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Asset, Past Due [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Interest Entity, Not Primary Beneficiary [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Interest Entity Not Primary Beneficiary [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CompanyOwnedSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Company owned securities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CompanyOwnedSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Company Owned Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_CompanyOwnedSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Company Owned Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SeniorNotes520Due2047Member_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Senior Notes 5.20 Due 2047.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SeniorNotes520Due2047Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Senior Notes520 Due2047 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SeniorNotes520Due2047Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Senior notes 5.20% due 2047 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_SeniorNotes520Due2047Member_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Senior notes 5.20% due 2047 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesSoldNotYetPurchasedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Sold, Not yet Purchased [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesSoldNotYetPurchasedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities Sold, But Not yet Purchased [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Lease, Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable lease cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Employee Stock Purchase Plan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Distributions under employee plans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debentures to Stifel Financial Capital Trusts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansHeldForSaleFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loan, Held-for-Sale, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansHeldForSaleFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loans held for sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted-average remaining lease term (years)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Weighted Average Remaining Lease Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableUnamortizedLoanFeeCost_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Unamortized loan fees, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableUnamortizedLoanFeeCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, Unamortized Loan Cost (Fee)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancingReceivableUnamortizedLoanFeeCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unamortized loan fees, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting Information [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segment Reporting Information [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lease, Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net lease cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssetsInterestRateContractsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Offsetting assets interest rate contracts net.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssetsInterestRateContractsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Assets Interest rate contracts Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OffsettingAssetsInterestRateContractsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Offsetting assets interest rate contracts net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fixed assets, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Property, Plant and Equipment, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Property, Plant and Equipment, Net, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Property, Plant and Equipment, Net, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RevolvingLoansAmortizedCostBasisMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Revolving loans amortized cost basis.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RevolvingLoansAmortizedCostBasisMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revolving Loans Amortized Cost Basis [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_RevolvingLoansAmortizedCostBasisMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revolving Loans Amortized Cost Basis [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Cash, cash equivalents, and cash segregated for regulatory purposes at beginning of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Cash, cash equivalents, and cash segregated for regulatory purposes at end of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OurOtherBrokerDealerSubsidiariesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Our other broker-dealer subsidiaries.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OurOtherBrokerDealerSubsidiariesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Our Other Broker Dealer Subsidiaries [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_OurOtherBrokerDealerSubsidiariesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Our Other Broker-Dealer Subsidiaries</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Retained Earnings [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestIncomeOtherOperatingIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noninterest Income, Other Operating Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestIncomeOtherOperatingIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AvailableForSaleSecuritiesInUnrealizedLossPositionsPercentageOfAvailableForSalePortfolio_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Available for sale securities in unrealized loss positions, percentage of available for sale portfolio.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AvailableForSaleSecuritiesInUnrealizedLossPositionsPercentageOfAvailableForSalePortfolio_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Available For Sale Securities In Unrealized Loss Positions Percentage Of Available For Sale Portfolio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AvailableForSaleSecuritiesInUnrealizedLossPositionsPercentageOfAvailableForSalePortfolio_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of available-for-sale portfolio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Repurchase Program, Authorized, Number of Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of shares authorized to be repurchased</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Available-for-sale Securities, Estimated fair value, Less than 12 months</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MiscellaneousInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Miscellaneous Investments [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MiscellaneousInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Miscellaneous Investments [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Weighted Average Discount Rate, Percent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted-average discount rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 1 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 1 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash provided by financing activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CollateralDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collateral Held [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CollateralDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collateral Held</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Debt [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Short-term Debt [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCostTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lease, Cost [Table Text Block]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesBorrowedGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Borrowed, Subject to Master Netting Arrangement, before Offset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesBorrowedGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross amounts of recognized assets, Securities borrowing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Available-for-sale Securities, debt maturities, after five year through ten years, fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Investments, Fair Value Disclosure, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AlternativeInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Alternative Investment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AlternativeInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Term loans amortized cost basis by origination year two thousand twenty five.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyFiveMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Five [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sales</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeContractTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Contract [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reclassifications to earnings of realized gains/(losses) on available-for-sale securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_USGovernmentCorporationsAndAgenciesSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">US Government Corporations and Agencies Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_USGovernmentCorporationsAndAgenciesSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">U.S. Government Agency Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FederalReserveDiscountWindowMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Federal Reserve Discount Window [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FederalReserveDiscountWindowMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Federal reserve discount window.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FederalReserveDiscountWindowMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Federal Reserve discount window [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Interactive Data Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Interactive Data Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AvailableForSaleSecuritiesDebtMaturitiesAfterThreeThroughFiveYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Available for sale securities debt maturities after three through five years fair value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AvailableForSaleSecuritiesDebtMaturitiesAfterThreeThroughFiveYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Available For Sale Securities Debt Maturities After Three Through Five Years Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_AvailableForSaleSecuritiesDebtMaturitiesAfterThreeThroughFiveYearsFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Available-for-sale Securities, debt maturities, after three year through five years, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Contract with Customer, Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Brokerage clients</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Income Location, Balance [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Statement Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Income [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other Income [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosureItemAmountsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosureItemAmountsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Measurement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOtherLoans_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Other Loans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOtherLoans_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Loans and advances to financial advisors and other employees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Flows From Operating Activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DueToAndFromBrokerDealersAndClearingOrganizationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Due to and from Broker-Dealers and Clearing Organizations [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ProceedsFromSaleOfLeasedAircraftEngines_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sale of leased aircraft engines</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ProceedsFromSaleOfLeasedAircraftEngines_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds From Sale of Leased Aircraft Engines</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_ProceedsFromSaleOfLeasedAircraftEngines_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds from Sale of leased aircraft engines.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Estimated fair value of the purchase commitments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accretion (Amortization) of Discounts and Premiums, Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Amortization of premium on investment portfolio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FinancialReceivableAllowanceForCreditLossReserve_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Allowance for credit losses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FinancialReceivableAllowanceForCreditLossReserve_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Receivable Allowance For Credit Loss Reserve</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_FinancialReceivableAllowanceForCreditLossReserve_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Financial receivable allowance for credit loss reserve</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_NumberOfBanksWithWhichEntityHasCommittedRevolvingCreditFacility_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of banks with which entity has committed revolving credit facility.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_NumberOfBanksWithWhichEntityHasCommittedRevolvingCreditFacility_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Banks With Which Entity Has Committed Revolving Credit Facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_NumberOfBanksWithWhichEntityHasCommittedRevolvingCreditFacility_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of banks</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfTreasuryStockByClassTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Company's Shares Repurchase Activity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfTreasuryStockByClassTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Treasury Stock [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Capital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Total Capital, Actual</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Capital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total capital, Actual Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockDividendsPerShareDeclared_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Dividends, Per Share, Declared</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockDividendsPerShareDeclared_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash dividends declared per common share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommunicationsAndInformationTechnology_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Communications and Information Technology</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommunicationsAndInformationTechnology_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Communications and office supplies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommunicationsAndInformationTechnology_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Communications and Information Technology, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResidentialMortgageMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Residential Mortgage [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResidentialMortgageMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Residential Real Estate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Tax Identification Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Tax Identification Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenues [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenues:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DerivativeInstrumentsMaturityInOneToThreeYears_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Derivative instruments maturity, in one to three years.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DerivativeInstrumentsMaturityInOneToThreeYears_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments Maturity, in One to Three Years</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_DerivativeInstrumentsMaturityInOneToThreeYears_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">One to three years</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForProceedsFromOtherLoansAndLeases_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for (Proceeds from) Other Loans and Leases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForProceedsFromOtherLoansAndLeases_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">(Increase)/decrease in loans held for investment, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-term Debt, Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InstitutionalGroupMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Institutional Group [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InstitutionalGroupMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Institutional Group [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_InstitutionalGroupMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Institutional group.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Principal paydowns, maturities, and calls of available-for-sale securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OccupancyNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Occupancy, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OccupancyNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Occupancy and equipment rental</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loans, Notes, Trade and Other Receivables Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bank Loans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OffsettingLiabilitiesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offsetting Liabilities [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OffsettingLiabilitiesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Offsetting Liabilities [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrealized gains/(losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfSecuritiesOwnedAndSoldNotYetPurchasedAtFairValueTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Securities Owned and Sold, Not yet Purchased, at Fair Value [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfSecuritiesOwnedAndSoldNotYetPurchasedAtFairValueTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Components of Trading Securities Owned and Trading Securities Sold, But Not Yet Purchased</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TransferOfPortfolioLoansAndLeasesToHeldForSale1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transfer of loans held for investment to held for sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TransferOfPortfolioLoansAndLeasesToHeldForSale1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loan and Lease, Transfer from Held-in-Portfolio to Held-for-Sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Local Phone Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Local Phone Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party Transaction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sf_LoanAndAdvancesToFinancialAdvisorsAndOtherEmployeesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Loan and advances to financial advisors and other employees.</link:label>
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  <xsd:element id="sf_StifelFinancialCapitalTrustsMember" name="StifelFinancialCapitalTrustsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRedemptions" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRedemptions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_PeriodOfEstimatedFutureOperatingResults" name="PeriodOfEstimatedFutureOperatingResults" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sf_InvestmentsInFundsAndPartnershipsMeasuredAtNetAssetValueMember" name="InvestmentsInFundsAndPartnershipsMeasuredAtNetAssetValueMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_LoanAndAdvancesToFinancialAdvisorsAndOtherEmployeesPolicyTextBlock" name="LoanAndAdvancesToFinancialAdvisorsAndOtherEmployeesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sf_OfficeSpaceAndOfficeEquipmentMember" name="OfficeSpaceAndOfficeEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_USGovernmentAgencySecuritiesAndUSGovernmentSecuritiesAndCorporateFixedIncomeSecuritiesMember" name="USGovernmentAgencySecuritiesAndUSGovernmentSecuritiesAndCorporateFixedIncomeSecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_DerivativeInstrumentsMaturityInNextTwelveMonths" name="DerivativeInstrumentsMaturityInNextTwelveMonths" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_CorporateEquitySecuritiesMember" name="CorporateEquitySecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_OffsettingLiabilitiesNetAmountsPresentedInStatementOfFinancialCondition" name="OffsettingLiabilitiesNetAmountsPresentedInStatementOfFinancialCondition" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_ScheduleOfDueFromBrokerDealersAndClearingOrganizationsTableTextBlock" name="ScheduleOfDueFromBrokerDealersAndClearingOrganizationsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sf_SyndicatedLoansMember" name="SyndicatedLoansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_FourAircraftEngineMember" name="FourAircraftEngineMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_NonAgencyMortgageBackedSecuritiesMember" name="NonAgencyMortgageBackedSecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_PercentageOfAggregateDebitBalances" name="PercentageOfAggregateDebitBalances" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="sf_GeneralSettlementPeriodOfSecuritiesTransactions" name="GeneralSettlementPeriodOfSecuritiesTransactions" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sf_FairValueOfSecuritiesReceivedAsCollateralMember" name="FairValueOfSecuritiesReceivedAsCollateralMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_InvestmentsAtFairValue" name="InvestmentsAtFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_GainLossOnSaleOfAircraftEngines" name="GainLossOnSaleOfAircraftEngines" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_EmployeeRetentionAwardsMember" name="EmployeeRetentionAwardsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_InvestmentBankingRevenues" name="InvestmentBankingRevenues" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_PercentageAvailableForSaleSecurities" name="PercentageAvailableForSaleSecurities" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="sf_CashAndCashEquivalentsAndCashSegregatedForRegulatoryPurposes" name="CashAndCashEquivalentsAndCashSegregatedForRegulatoryPurposes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyThreeMember" name="TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_AssetsAtFairValueOnRecurringBasisBeforeCashEquivalentsMeasuredAtNAVMember" name="AssetsAtFairValueOnRecurringBasisBeforeCashEquivalentsMeasuredAtNAVMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_TurbineEnginesSecuritizationLtdMember" name="TurbineEnginesSecuritizationLtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_StifelBankMember" name="StifelBankMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyFiveMember" name="TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_SecuritiesPurchasedUnderAgreementsToResellNetAmount" name="SecuritiesPurchasedUnderAgreementsToResellNetAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_AfterFebruaryFifteenTwentyThirtyMember" name="AfterFebruaryFifteenTwentyThirtyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_HeldToMaturitySecuritiesDebtMaturitiesAfterThreeThroughFiveYearsNetCarryingAmount" name="HeldToMaturitySecuritiesDebtMaturitiesAfterThreeThroughFiveYearsNetCarryingAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_OffsettingLiabilityInterestRateContractsNet" name="OffsettingLiabilityInterestRateContractsNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_CommissionsRevenues" name="CommissionsRevenues" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_OffsettingLiabilitiesNetAmount" name="OffsettingLiabilitiesNetAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_ScheduleOfTheVariableInterestEntitiesTextBlock" name="ScheduleOfTheVariableInterestEntitiesTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sf_SecuritiesPurchasedUnderAgreementsToResellAmountsNotOffset" name="SecuritiesPurchasedUnderAgreementsToResellAmountsNotOffset" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sf_ChairmanAndChiefExecutiveOfficerMember" name="ChairmanAndChiefExecutiveOfficerMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_InterestIncomeFromFinancialInstrumentsOwned" name="InterestIncomeFromFinancialInstrumentsOwned" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_RevenueFromContractWithCustomerExcludingOtherSegmentRevenueAndAssessedTax" name="RevenueFromContractWithCustomerExcludingOtherSegmentRevenueAndAssessedTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_ScheduleOfGoodwillAndIntangibleAssetsTable" name="ScheduleOfGoodwillAndIntangibleAssetsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_CollateralizedLoanPortfolio" name="CollateralizedLoanPortfolio" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="sf_RestrictedStockAwardMember" name="RestrictedStockAwardMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_DeferredAwardsMember" name="DeferredAwardsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_SharebasedCompensationArrangementByShareBasedPaymentAwardAwardSharesPotentiallyConvertedRangePercentage" name="SharebasedCompensationArrangementByShareBasedPaymentAwardAwardSharesPotentiallyConvertedRangePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sf_FinancingReceivableRecordedInvestmentNonaccrualStatusRestructuredLoansAndNonperformingLoansWithNoAllowance" name="FinancingReceivableRecordedInvestmentNonaccrualStatusRestructuredLoansAndNonperformingLoansWithNoAllowance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_InvestmentBankingMember" name="InvestmentBankingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_MoodysARatingMember" name="MoodysARatingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_PriorToFebruaryFifteenTwentyThirtyMember" name="PriorToFebruaryFifteenTwentyThirtyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_NonRecourseDebtMember" name="NonRecourseDebtMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_OtherCountriesMember" name="OtherCountriesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_ProceedsFromSaleOfLeasedAircraftEngines" name="ProceedsFromSaleOfLeasedAircraftEngines" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_WrittenOptionsMember" name="WrittenOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_LineOfCreditFacilityExpirationMonthAndYear" name="LineOfCreditFacilityExpirationMonthAndYear" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sf_OffsettingAssetsInterestRateContractsNet" name="OffsettingAssetsInterestRateContractsNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_DepositorySharesEachRepresentingOneByThousandthInterestInShareOfSixPointTwoFivePercentageNonCumulativePreferredStockSeriesBMember" name="DepositorySharesEachRepresentingOneByThousandthInterestInShareOfSixPointTwoFivePercentageNonCumulativePreferredStockSeriesBMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_CashEquivalentsMeasuredAtNetAssetValue" name="CashEquivalentsMeasuredAtNetAssetValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_NetRevenuesAccountedForByIndividualClientMaximumPercentage" name="NetRevenuesAccountedForByIndividualClientMaximumPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sf_MoodysNrRatingMember" name="MoodysNrRatingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_ScheduleOfAvailableForSaleAndHeldToMaturitySecuritiesLineItems" name="ScheduleOfAvailableForSaleAndHeldToMaturitySecuritiesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_PaymentFromBrokerageCustomersMember" name="PaymentFromBrokerageCustomersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_OtherRevenueFromContractsWithCustomer" name="OtherRevenueFromContractsWithCustomer" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_OffsettingLiabilitiesGrossAmountsOfRecognizedLiabilities" name="OffsettingLiabilitiesGrossAmountsOfRecognizedLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_AllowanceForCreditLossesOnUnfundedLendingCommitments" name="AllowanceForCreditLossesOnUnfundedLendingCommitments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_ConstructionAndLandMember" name="ConstructionAndLandMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_ElectiveDeferralsVestedPercentage" name="ElectiveDeferralsVestedPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="sf_PerformanceBasedRestrictedStockUnitsMember" name="PerformanceBasedRestrictedStockUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_UnusedLinesOfCreditToCommercialAndConsumerBorrowers" name="UnusedLinesOfCreditToCommercialAndConsumerBorrowers" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_HeldToMaturitySecuritiesDebtMaturitiesAfterThreeThroughFiveYearsFairValue" name="HeldToMaturitySecuritiesDebtMaturitiesAfterThreeThroughFiveYearsFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_InstitutionalGroupMember" name="InstitutionalGroupMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_CommissionsMember" name="CommissionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_FairValueOfSecuritiesPledgedAsCollateralMember" name="FairValueOfSecuritiesPledgedAsCollateralMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_LoansAndLeasesPayableReceivableLoansInProcess" name="LoansAndLeasesPayableReceivableLoansInProcess" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_BRileyFinancialIncMember" name="BRileyFinancialIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_NumberOfBanksWithWhichEntityHasCommittedRevolvingCreditFacility" name="NumberOfBanksWithWhichEntityHasCommittedRevolvingCreditFacility" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="sf_OffsettingAssetsGrossAmountsOfRecognizedAssets" name="OffsettingAssetsGrossAmountsOfRecognizedAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_SecuritizationInterestsMember" name="SecuritizationInterestsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_NumberOfLeasedAssets" name="NumberOfLeasedAssets" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sf_DisclosuresAboutOffsettingAssetsAndLiabilitiesTextBlock" name="DisclosuresAboutOffsettingAssetsAndLiabilitiesTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sf_OffsettingAssetsAmountsNotOffset" name="OffsettingAssetsAmountsNotOffset" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_DepositorySharesEachRepresentingOneByThousandthInterestInShareOfSixPointOneTwoFivePercentageNonCumulativePreferredStockSeriesCPreferredStockMember" name="DepositorySharesEachRepresentingOneByThousandthInterestInShareOfSixPointOneTwoFivePercentageNonCumulativePreferredStockSeriesCPreferredStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_SeniorNotes400Due2030Member" name="SeniorNotes400Due2030Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyOneMember" name="TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_DerivativeInstrumentsMaturityInOneToThreeYears" name="DerivativeInstrumentsMaturityInOneToThreeYears" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_LineOfCreditFacilityMaximumBorrowingCapacityTerminated" name="LineOfCreditFacilityMaximumBorrowingCapacityTerminated" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyFourMember" name="TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_CapitalRaisingMember" name="CapitalRaisingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_OffsettingAssets" name="OffsettingAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_InvestmentBankingBacklogMember" name="InvestmentBankingBacklogMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_PercentageOfEarningsDeferredIntoCompanyStockUnits" name="PercentageOfEarningsDeferredIntoCompanyStockUnits" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="sf_ScheduleOfCustomerInterestRateDerivativesTableTextBlock" name="ScheduleOfCustomerInterestRateDerivativesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sf_AdvisoryFeesMember" name="AdvisoryFeesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_FiveAircraftEngineMember" name="FiveAircraftEngineMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_SeniorNotes520Due2047Member" name="SeniorNotes520Due2047Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_DailyBorrowingsUnderCreditArrangements" name="DailyBorrowingsUnderCreditArrangements" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_IncreaseDecreaseInDraftsPayable" name="IncreaseDecreaseInDraftsPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_AvailableForSaleSecuritiesInUnrealizedLossPositionsPercentageOfAvailableForSalePortfolio" name="AvailableForSaleSecuritiesInUnrealizedLossPositionsPercentageOfAvailableForSalePortfolio" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="sf_BankDepositsLineItems" name="BankDepositsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_DebtAndEquityMember" name="DebtAndEquityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_AvailableForSaleSecuritiesDebtMaturitiesAfterThreeThroughFiveYearsFairValue" name="AvailableForSaleSecuritiesDebtMaturitiesAfterThreeThroughFiveYearsFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_RedemptionPricePercentageOfPrincipalAmount" name="RedemptionPricePercentageOfPrincipalAmount" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sf_MoodysAaRatingMember" name="MoodysAaRatingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_CompanyOwnedSecuritiesMember" name="CompanyOwnedSecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_UncommittedSecuredLinesOfCredit" name="UncommittedSecuredLinesOfCredit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_ExecutiveOfficersAndDirectorsOfCertainAffiliatedEntitiesMember" name="ExecutiveOfficersAndDirectorsOfCertainAffiliatedEntitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_SecuritiesBasedLoansMember" name="SecuritiesBasedLoansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_SeniorNotes4250Due2024Member" name="SeniorNotes4250Due2024Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_TermLoansAmortizedCostBasisByOriginationYearAndRevolvingLoansAmortizedCostBasisTableTextBlock" name="TermLoansAmortizedCostBasisByOriginationYearAndRevolvingLoansAmortizedCostBasisTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sf_InterestIncomeExpenseOther" name="InterestIncomeExpenseOther" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_CommercialAndIndustrialMember" name="CommercialAndIndustrialMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_OffsettingAssetsNetAmount" name="OffsettingAssetsNetAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_PunitiveDamagesMember" name="PunitiveDamagesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_NonCompensationOperatingExpenses" name="NonCompensationOperatingExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_NatureOfOperationsPolicyTextBlock" name="NatureOfOperationsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sf_ScheduleOfEstimatedFairValuesAndFairValueHierarchyOfFinancialInstrumentsNotRecordedOrMeasuredAtFairValueTableTextBlock" name="ScheduleOfEstimatedFairValuesAndFairValueHierarchyOfFinancialInstrumentsNotRecordedOrMeasuredAtFairValueTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sf_StifelNicolausMember" name="StifelNicolausMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue" name="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughThreeYearsFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_FinancingReceivables30To89DaysPastDueMember" name="FinancingReceivables30To89DaysPastDueMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_FinancialReceivableAllowanceForCreditLossReserve" name="FinancialReceivableAllowanceForCreditLossReserve" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_PaymentsOfDividendsCommonStockAndEquityAwardHolders" name="PaymentsOfDividendsCommonStockAndEquityAwardHolders" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_DerivativeInstrumentsMaturityInTenToFifteenYears" name="DerivativeInstrumentsMaturityInTenToFifteenYears" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sf_OtherStatesMember" name="OtherStatesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_AllowancesForUnfundedCreditCommitments" name="AllowancesForUnfundedCreditCommitments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_OffsettingLiabilitiesAmountsNotOffset" name="OffsettingLiabilitiesAmountsNotOffset" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sf_TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyMember" name="TermLoansAmortizedCostBasisByOriginationYearTwoThousandTwentyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sf_AssetManagementRevenues" name="AssetManagementRevenues" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
</xsd:schema>
