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Regulatory Capital Requirements (Schedule Of Total Risk-Based, Tier 1 Risk-Based, And Tier 1 Leverage Ratios) (Details) $ in Thousands | Mar. 31, 2019 USD ($)
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Stifel Financial Corp. [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 2,256,249
Tier 1 capital, Actual Ratio | 18.50%
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 732,900
Tier 1 capital For Capital Adequacy Purposes, Ratio | 6.00%
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 977,200
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 8.00%
Total capital, Actual Amount | $ 2,403,426
Total capital, Actual Ratio | 19.70%
Total capital For Capital Adequacy Purposes, Amount | $ 977,200
Total capital For Capital Adequacy Purposes, Ratio | 8.00%
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,221,500
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 10.00%
Tier 1 leverage, Actual Amount | $ 2,256,249
Tier 1 leverage, Actual Ratio | 9.80%
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 919,050
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 4.00%
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,148,812
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 5.00%
Stifel Financial Corp. [Member] | Common Stock [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 1,942,586
Tier 1 capital, Actual Ratio | 15.90%
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 549,675
Tier 1 capital For Capital Adequacy Purposes, Ratio | 4.50%
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 793,975
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 6.50%
Stifel Bank & Trust [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 1,109,109
Tier 1 capital, Actual Ratio | 13.80%
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 482,663
Tier 1 capital For Capital Adequacy Purposes, Ratio | 6.00%
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 643,551
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 8.00%
Total capital, Actual Amount | $ 1,197,212
Total capital, Actual Ratio | 14.90%
Total capital For Capital Adequacy Purposes, Amount | $ 643,551
Total capital For Capital Adequacy Purposes, Ratio | 8.00%
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 804,439
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 10.00%
Tier 1 leverage, Actual Amount | $ 1,109,109
Tier 1 leverage, Actual Ratio | 7.10%
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 624,945
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 4.00%
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 781,182
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 5.00%
Stifel Bank & Trust [Member] | Common Stock [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 1,105,446
Tier 1 capital, Actual Ratio | 13.70%
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 361,998
Tier 1 capital For Capital Adequacy Purposes, Ratio | 4.50%
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 522,885
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 6.50%
Stifel Bank [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 135,189
Tier 1 capital, Actual Ratio | 17.50%
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 46,338
Tier 1 capital For Capital Adequacy Purposes, Ratio | 6.00%
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 61,784
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 8.00%
Total capital, Actual Amount | $ 143,745
Total capital, Actual Ratio | 18.60%
Total capital For Capital Adequacy Purposes, Amount | $ 61,784
Total capital For Capital Adequacy Purposes, Ratio | 8.00%
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 77,230
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 10.00%
Tier 1 leverage, Actual Amount | $ 135,189
Tier 1 leverage, Actual Ratio | 7.50%
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 72,561
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 4.00%
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 90,702
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 5.00%
Stifel Bank [Member] | Common Stock [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 135,189
Tier 1 capital, Actual Ratio | 17.50%
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 34,754
Tier 1 capital For Capital Adequacy Purposes, Ratio | 4.50%
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 50,200
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 6.50%

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- Definition The amount of Total Capital required to be categorized as well as capitalized under the regulatory framework for prompt corrective action. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958568-112826 + Details
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