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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, 2023 USD ($)
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Stifel Financial Corp. [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 3,915,965
Tier 1 capital, Actual Ratio | 0.172
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 1,364,893
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.06
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,819,857
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.08
Total capital, Actual Amount | $ 4,129,814
Total capital, Actual Ratio | 0.182
Total capital For Capital Adequacy Purposes, Amount | $ 1,819,857
Total capital For Capital Adequacy Purposes, Ratio | 0.08
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 2,274,822
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.10
Tier 1 leverage, Actual Amount | $ 3,915,965
Tier 1 leverage, Actual Ratio | 0.105
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 1,498,042
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 0.04
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,872,552
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.05
Stifel Financial Corp. [Member] | Common Stock [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 3,230,965
Tier 1 capital, Actual Ratio | 0.142
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 1,023,670
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,478,634
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.065
Stifel Bank & Trust [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 1,344,589
Tier 1 capital, Actual Ratio | 0.118
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 681,916
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.06
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 909,222
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.08
Total capital, Actual Amount | $ 1,464,939
Total capital, Actual Ratio | 0.129
Total capital For Capital Adequacy Purposes, Amount | $ 909,222
Total capital For Capital Adequacy Purposes, Ratio | 0.08
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,136,527
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.10
Tier 1 leverage, Actual Amount | $ 1,344,589
Tier 1 leverage, Actual Ratio | 0.073
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 740,724
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 0.04
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 925,905
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.05
Stifel Bank & Trust [Member] | Common Stock [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 1,344,589
Tier 1 capital, Actual Ratio | 0.118
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 511,437
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 738,743
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.065
Stifel Bank [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 788,811
Tier 1 capital, Actual Ratio | 0.119
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 397,374
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.06
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 529,831
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.08
Total capital, Actual Amount | $ 827,822
Total capital, Actual Ratio | 0.125
Total capital For Capital Adequacy Purposes, Amount | $ 529,831
Total capital For Capital Adequacy Purposes, Ratio | 0.08
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 662,289
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.10
Tier 1 leverage, Actual Amount | $ 788,811
Tier 1 leverage, Actual Ratio | 0.072
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 440,792
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 0.04
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 550,990
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.05
Stifel Bank [Member] | Common Stock [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 788,811
Tier 1 capital, Actual Ratio | 0.119
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 298,030
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 430,488
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.065

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