XML 99 R92.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Disclosures About Offsetting Assets and Liabilities - Financial Assets and Derivative Assets that are Subject to Offset (Details) (Parenthetical) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Offsetting Assets [Line Items] |  |
Fair value of securities received as collateral | $ 415,739 | $ 325,627
Fair Value Of Securities Received As Collateral [Member] |  |
Offsetting Assets [Line Items] |  |
Fair value of securities received as collateral | 435,700 | 350,200
Fair Value Of Securities Received As Collateral [Member] | Interest Rate Contracts [Member] |  |
Offsetting Assets [Line Items] |  |
Fair value of securities received as collateral | $ 90,300 | $ 84,100

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_OffsettingAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of securities received as collateral against securities purchased under agreement to resell. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-12 + Details
Name: | us-gaap_SecuritiesPurchasedUnderAgreementsToResellFairValueOfCollateral
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=sf_FairValueOfSecuritiesReceivedAsCollateralMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |