XML 65 R118.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Revenues From Contracts With Customers (Revenues from Contracts with Customers Disaggregated by Major Business Activity and Primary Geographic Regions) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disaggregation Of Revenue [Line Items] |  |  |  |
Commissions |  | $ 667,494 | $ 657,732 |
Investment banking |  | 817,421 | 707,670 |
Revenue from contracts with customers |  | 2,352,237 | 2,187,145 |
Other |  | 19,287 | 15,568 |
Capital Raising [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Investment banking | [1] | 369,442 | 336,188 |
Advisory Fees [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Investment banking | [1] | 447,979 | 371,482 |
Asset Management [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers |  | 848,035 | 806,175 | $ 702,064
Global Wealth Management [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Commissions |  | 477,401 | 472,135 |
Investment banking |  | 37,915 | 31,374 |
Revenue from contracts with customers |  | 1,379,730 | 1,321,266 |
Other |  | 16,437 | 11,625 |
Global Wealth Management [Member] | Capital Raising [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Investment banking | [1] | 37,915 | 31,293 |
Global Wealth Management [Member] | Advisory Fees [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Investment banking | [1] |  | 81 |
Global Wealth Management [Member] | Asset Management [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers |  | 847,977 | 806,132 |
Institutional Group [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Commissions |  | 190,093 | 185,597 |
Investment banking |  | 779,506 | 676,296 |
Revenue from contracts with customers |  | 969,657 | 861,936 |
Institutional Group [Member] | Capital Raising [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Investment banking | [1] | 331,527 | 304,895 |
Institutional Group [Member] | Advisory Fees [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Investment banking | [1] | 447,979 | 371,401 |
Institutional Group [Member] | Asset Management [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers |  | 58 | 43 |
Other [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers |  | 2,850 | 3,943 |
Other |  | 2,850 | 3,943 |
United States [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers |  | 2,205,338 | 2,050,460 |
United States [Member] | Global Wealth Management [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers |  | 1,379,730 | 1,321,266 |
United States [Member] | Institutional Group [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers |  | 822,758 | 725,251 |
United States [Member] | Other [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers |  | 2,850 | 3,943 |
United Kingdom [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers |  | 135,529 | 130,979 |
United Kingdom [Member] | Institutional Group [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers |  | 135,529 | 130,979 |
Other [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers |  | 11,370 | 5,706 |
Other [Member] | Institutional Group [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers |  | $ 11,370 | $ 5,706 |
[1] | Excludes revenues not derived from contracts with customers in the Other segment.

X
- Definition Other revenue from contracts with customer. + References No definition available. + Details
Name: | sf_OtherRevenueFromContractsWithCustomer
Namespace Prefix: | sf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of commission revenue from buying and selling securities on behalf of customers. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 20 -Section 05 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68070981&loc=d3e40544-110947 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13(a),(b)) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 + Details
Name: | us-gaap_BrokerageCommissionsRevenue
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_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Includes (1) underwriting revenue (the spread between the resale price received and the cost of the securities and related expenses) generated through the purchasing, distributing and reselling of new issues of securities (alternatively, could be a secondary offering of a large block of previously issued securities); and (2) fees earned for mergers, acquisitions, divestitures, restructurings, and other types of financial advisory services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13(b),(d)) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 + Details
Name: | us-gaap_InvestmentBankingRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_ProductOrServiceAxis=sf_CapitalRaisingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=sf_AdvisoryFeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_InvestmentAdvisoryManagementAndAdministrativeServiceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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: |

X
- Details
Name: | srt_StatementGeographicalAxis=srt_AmericasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_GB
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=sf_OtherStatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |