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Regulatory Capital Requirements (Schedule Of Total Risk-Based, Tier 1 Risk-Based, And Tier 1 Leverage Ratios) (Details) $ in Thousands | Jun. 30, 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 | $ 4,044,436
Tier 1 capital, Actual Ratio | 0.178
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 1,364,045
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.060
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,818,726
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.080
Total capital, Actual Amount | $ 4,264,588
Total capital, Actual Ratio | 0.188
Total capital For Capital Adequacy Purposes, Amount | $ 1,818,726
Total capital For Capital Adequacy Purposes, Ratio | 0.080
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 2,273,408
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.100
Tier 1 leverage, Actual Amount | $ 4,044,436
Tier 1 leverage, Actual Ratio | 0.111
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 1,451,022
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 0.040
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,813,778
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.050
Stifel Financial Corp. [Member] | Common Stock [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 3,359,436
Tier 1 capital, Actual Ratio | 0.148
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 1,023,034
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,477,715
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 | $ 1,268,458
Tier 1 capital, Actual Ratio | 0.109
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 697,184
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.060
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 929,579
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.080
Total capital, Actual Amount | $ 1,393,211
Total capital, Actual Ratio | 0.12
Total capital For Capital Adequacy Purposes, Amount | $ 929,579
Total capital For Capital Adequacy Purposes, Ratio | 0.080
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,161,973
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.100
Tier 1 leverage, Actual Amount | $ 1,268,458
Tier 1 leverage, Actual Ratio | 0.071
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 714,922
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 0.040
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 893,653
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.050
Stifel Bank & Trust [Member] | Common Stock [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 1,268,458
Tier 1 capital, Actual Ratio | 0.109
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 522,888
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 755,283
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 | $ 742,135
Tier 1 capital, Actual Ratio | 0.131
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 339,757
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.060
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 453,010
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.080
Total capital, Actual Amount | $ 782,269
Total capital, Actual Ratio | 0.138
Total capital For Capital Adequacy Purposes, Amount | $ 453,010
Total capital For Capital Adequacy Purposes, Ratio | 0.080
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 566,262
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.100
Tier 1 leverage, Actual Amount | $ 742,135
Tier 1 leverage, Actual Ratio | 0.071
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 416,121
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 0.040
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 520,151
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.050
Stifel Bank [Member] | Common Stock [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 742,135
Tier 1 capital, Actual Ratio | 0.131
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 254,818
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 368,070
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.065

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