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Variable Interest Entities (Details) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2017 USD ($) item | Dec. 31, 2016 USD ($)
Variable Interest Entity [Line Items] |  |
Assets in partnership | $ 184,000,000 |
Convertible promissory note to FSI | $ 18,000,000 |
Number of extension options | item | 3 |
Extension options, period | 5 years |
Potential ownership interest upon conversion of notes issued to FSI | 49.90% |
Convertible promissory note minimum coupon rate | 8.00% |
Maximum rate of interest related to certain defined cash flows | 18.00% |
Liabilities related to VIE | $ 17,551,675,000 | $ 16,390,948,000
Stifel Financial Corp. [Member] |  |
Variable Interest Entity [Line Items] |  |
Loss exposure | 18,000,000 |
Weisel Capital Management LLC [Member] |  |
Variable Interest Entity [Line Items] |  |
Assets in partnership | 315,400,000 |
FSI Group, LLC [Member] |  |
Variable Interest Entity [Line Items] |  |
Liabilities related to VIE | $ 0 |

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- Definition Convertible promissory note minimum coupon rate maximum. + References No definition available. + Details
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- Definition Convertible promissory note minimum coupon rate minimum. + References No definition available. + Details
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- Definition Extension options, period. + References No definition available. + Details
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- Definition Number of extension options. + References No definition available. + Details
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- Definition Potential ownership interest upon conversion of notes issued. + References No definition available. + Details
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- Definition Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19-26) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The principal amount of the receivable or note before consideration of the discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
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- Definition The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=77990344&loc=d3e5728-111685 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=77990344&loc=d3e5747-111685 + Details
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- 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
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- Definition Carrying amount of the assets in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph a -URI http://asc.fasb.org/extlink&oid=77990344&loc=d3e5728-111685 + Details
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