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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, 2024 USD ($)
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Stifel Financial Corp. [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 4,330,786
Tier 1 capital, Actual Ratio | 0.182
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 1,424,494
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.06
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,899,326
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.08
Total capital, Actual Amount | $ 4,556,023
Total capital, Actual Ratio | 0.192
Total capital For Capital Adequacy Purposes, Amount | $ 1,899,326
Total capital For Capital Adequacy Purposes, Ratio | 0.08
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 2,374,157
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.10
Tier 1 leverage, Actual Amount | $ 4,330,786
Tier 1 leverage, Actual Ratio | 0.114
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 1,522,940
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 0.04
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,903,675
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 | $ 3,645,786
Tier 1 capital, Actual Ratio | 0.154
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 1,068,371
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,543,202
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 | $ 1,366,711
Tier 1 capital, Actual Ratio | 0.111
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 740,084
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.06
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 986,778
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.08
Total capital, Actual Amount | $ 1,491,850
Total capital, Actual Ratio | 0.121
Total capital For Capital Adequacy Purposes, Amount | $ 986,778
Total capital For Capital Adequacy Purposes, Ratio | 0.08
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,233,473
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.10
Tier 1 leverage, Actual Amount | $ 1,366,711
Tier 1 leverage, Actual Ratio | 0.071
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 774,495
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 0.04
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 968,118
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 | $ 1,366,711
Tier 1 capital, Actual Ratio | 0.111
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 555,063
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 801,758
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 | $ 768,652
Tier 1 capital, Actual Ratio | 0.13
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 355,236
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.06
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 473,648
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.08
Total capital, Actual Amount | $ 812,857
Total capital, Actual Ratio | 0.137
Total capital For Capital Adequacy Purposes, Amount | $ 473,648
Total capital For Capital Adequacy Purposes, Ratio | 0.08
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 592,060
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.10
Tier 1 leverage, Actual Amount | $ 768,652
Tier 1 leverage, Actual Ratio | 0.071
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 433,925
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 0.04
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 542,407
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 | $ 768,652
Tier 1 capital, Actual Ratio | 0.13
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 266,427
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 384,839
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.065

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