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Regulatory Capital Requirements (Schedule Of Total Risk-Based, Tier 1 Risk-Based, And Tier 1 Leverage Ratios) (Details) $ in Thousands | Dec. 31, 2018 USD ($)
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Stifel Financial Corp. [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 2,103,339
Tier 1 capital, Actual Ratio | 18.20%
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 694,291
Tier 1 capital For Capital Adequacy Purposes, Ratio | 6.00%
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 925,721
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 8.00%
Total capital, Actual Amount | $ 2,247,937
Total capital, Actual Ratio | 19.40%
Total capital For Capital Adequacy Purposes, Amount | $ 925,721
Total capital For Capital Adequacy Purposes, Ratio | 8.00%
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,157,152
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 10.00%
Tier 1 leverage, Actual Amount | $ 2,103,339
Tier 1 leverage, Actual Ratio | 9.30%
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 904,735
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 4.00%
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,130,919
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 | $ 1,939,938
Tier 1 capital, Actual Ratio | 16.80%
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 520,718
Tier 1 capital For Capital Adequacy Purposes, Ratio | 4.50%
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 752,148
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 | $ 1,176,915
Tier 1 capital, Actual Ratio | 14.60%
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 485,274
Tier 1 capital For Capital Adequacy Purposes, Ratio | 6.00%
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 647,032
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 8.00%
Total capital, Actual Amount | $ 1,262,361
Total capital, Actual Ratio | 15.60%
Total capital For Capital Adequacy Purposes, Amount | $ 647,032
Total capital For Capital Adequacy Purposes, Ratio | 8.00%
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 808,790
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 10.00%
Tier 1 leverage, Actual Amount | $ 1,176,915
Tier 1 leverage, Actual Ratio | 7.10%
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 658,602
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 4.00%
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 823,252
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 | $ 1,163,514
Tier 1 capital, Actual Ratio | 14.40%
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 363,956
Tier 1 capital For Capital Adequacy Purposes, Ratio | 4.50%
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 525,714
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 | $ 77,244
Tier 1 capital, Actual Ratio | 12.30%
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 37,766
Tier 1 capital For Capital Adequacy Purposes, Ratio | 6.00%
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 50,354
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 8.00%
Total capital, Actual Amount | $ 85,117
Total capital, Actual Ratio | 13.50%
Total capital For Capital Adequacy Purposes, Amount | $ 50,354
Total capital For Capital Adequacy Purposes, Ratio | 8.00%
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 62,943
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 10.00%
Tier 1 leverage, Actual Amount | $ 77,244
Tier 1 leverage, Actual Ratio | 9.90%
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 31,113
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 4.00%
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 38,892
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 | $ 77,244
Tier 1 capital, Actual Ratio | 12.30%
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 28,324
Tier 1 capital For Capital Adequacy Purposes, Ratio | 4.50%
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 40,913
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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