XML 134 R125.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Segment Reporting (Schedule Of Operating Information, Segment) (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 USD ($) | Sep. 30, 2016 USD ($) | Jun. 30, 2016 USD ($) | Mar. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Sep. 30, 2015 USD ($) | Jun. 30, 2015 USD ($) | Mar. 31, 2015 USD ($) | Dec. 31, 2016 USD ($) Segment | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($)
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of reporting segments | Segment |  |  |  |  |  |  |  |  |  | 3 |  |  |  |  |
Net revenues |  | $ 661,391 | $ 641,986 | $ 652,145 | $ 619,974 | $ 581,286 | $ 591,575 | $ 597,751 | $ 560,982 | $ 2,575,496 | [1] | $ 2,331,594 | [1] | $ 2,208,424 | [1]
Income/(loss) before income taxes |  |  |  |  |  |  |  |  |  | $ 142,582 |  | $ 141,567 |  | $ 290,794 |
Net revenues accounted for by individual client, maximum percentage |  |  |  |  |  |  |  |  |  | 10.00% |  | 10.00% |  | 10.00% |
Global Wealth Management [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of operating segments | Segment |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |
Net revenues | [1] |  |  |  |  |  |  |  |  | $ 1,563,410 |  | $ 1,377,313 |  | $ 1,232,651 |
Income/(loss) before income taxes |  |  |  |  |  |  |  |  |  | 430,318 |  | 382,126 |  | 346,978 |
Institutional Group [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net revenues | [1] |  |  |  |  |  |  |  |  | 1,014,164 |  | 975,594 |  | 997,071 |
Income/(loss) before income taxes |  |  |  |  |  |  |  |  |  | 164,143 |  | 141,042 |  | 165,546 |
Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net revenues | [1] |  |  |  |  |  |  |  |  | (2,078) |  | (21,313) |  | (21,298) |
Income/(loss) before income taxes |  |  |  |  |  |  |  |  |  | $ (451,879) |  | $ (381,601) |  | $ (221,730) |
[1] | No individual client accounted for more than 10 percent of total net revenues for the years ended December 31, 2016, 2015, and 2014.

X
- Definition Net revenues accounted for by individual client, maximum percentage. + References No definition available. + Details
Name: | sf_NetRevenuesAccountedForByIndividualClientMaximumPercentage
Namespace Prefix: | sf_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of businesses within reportable segment. + References No definition available. + Details
Name: | sf_NumberOfBusinessesWithinReportableSegment
Namespace Prefix: | sf_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income after deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References No definition available. + Details
Name: | us-gaap_RevenuesNetOfInterestExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=sf_GlobalWealthManagementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=sf_InstitutionalGroupMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_AllOtherSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |