XML 96 R85.htm IDEA: XBRL DOCUMENT
v3.21.1

Bank Deposits (Scheduled Maturities of Certificates of Deposit) (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Deposits Liabilities Balance Sheet Reported Amounts [Abstract] |  |
Within one year | $ 2,222 | $ 2,719
One to three years | 263 | 409
Three to five years | 54 | 254
Certificates of deposit, less than $100,000 | 2,539 | 3,382
Within one year | 35,419 | 63,650
One to three years | 26,874 | 30,622
Three to five years | 100 |
Certificates of deposit, $100,000 and greater | 62,393 | 94,272
Total certificates of deposit | $ 64,932 | $ 97,654

X
- Definition Time deposit maturities, less than one hundred thousand, next rolling twelve months. + References No definition available. + Details
Name: | sf_TimeDepositMaturitiesLessThanOneHundredThousandNextRollingTwelveMonths
Namespace Prefix: | sf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Time deposit maturities, less than one hundred thousand, over three rolling years. + References No definition available. + Details
Name: | sf_TimeDepositMaturitiesLessThanOneHundredThousandOverThreeRollingYears
Namespace Prefix: | sf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Time deposit maturities, less than one hundred thousand, rolling years one to three. + References No definition available. + Details
Name: | sf_TimeDepositMaturitiesLessThanOneHundredThousandRollingYearsOneToThree
Namespace Prefix: | sf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Time deposit maturities, one hundred thousand or more, next rolling twelve months. + References No definition available. + Details
Name: | sf_TimeDepositMaturitiesOneHundredThousandOrMoreNextRollingTwelveMonths
Namespace Prefix: | sf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Time deposit maturities, one hundred thousand or more, over three rolling years. + References No definition available. + Details
Name: | sf_TimeDepositMaturitiesOneHundredThousandOrMoreOverThreeRollingYears
Namespace Prefix: | sf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Time deposit maturities, one hundred thousand or more, rolling one to three years. + References No definition available. + Details
Name: | sf_TimeDepositMaturitiesOneHundredThousandOrMoreRollingOneToThreeYears
Namespace Prefix: | sf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_DepositsLiabilitiesBalanceSheetReportedAmountsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of time deposit liabilities, including certificates of deposit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=116652737&loc=d3e64164-112818 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
Name: | us-gaap_TimeDeposits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations of $100,000 or more. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher SEC -Name Industry Guide -Number 3 -Section V -Paragraph D-E + Details
Name: | us-gaap_TimeDeposits100000OrMore
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations of less than $100,000. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher SEC -Name Industry Guide -Number 3 -Section V -Paragraph D-E + Details
Name: | us-gaap_TimeDepositsLessThan100000
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant