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Debentures To Stifel Financial Capital Trusts (Details) - USD ($) $ in Thousands | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2016 | Dec. 31, 2022 | Jun. 28, 2008 | Mar. 30, 2007 | Aug. 12, 2005
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debenture to Stifel Financial Capital Trust | $ 60,000 |  |  | $ 60,000 |  |  |  |
Stifel Financial Capital Trust II [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debenture to Stifel Financial Capital Trust | $ 20,000 | [1] |  | 20,000 | [1] |  |  | $ 35,000
Stated interest rate | 6.38% |  |  |  |  |  |  |
Maturity date | Sep. 30, 2035 |  |  |  |  |  |  |
Interest rate terms, spread over reference rate | 1.70% |  |  |  |  |  |  |
Reference rate | three-month LIBOR, or an appropriate alternative reference rate at the time that LIBOR ceases to be published, plus 1.70% per annum |  |  |  |  |  |  |
Extinguishment of debentures |  |  | $ 15,000 |  |  |  |  |
Stifel Financial Capital Trust III [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debenture to Stifel Financial Capital Trust | $ 35,000 | [2] |  | 35,000 | [2] |  | $ 35,000 |
Stated interest rate | 6.79% |  |  |  |  |  |  |
Maturity date | Jun. 06, 2037 |  |  |  |  |  |  |
Interest rate terms, spread over reference rate | 1.85% |  |  |  |  |  |  |
Reference rate | three-month LIBOR, or an appropriate alternative reference rate at the time that LIBOR ceases to be published, plus 1.85% per annum |  |  |  |  |  |  |
Stifel Financial Capital Trust IV [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debenture to Stifel Financial Capital Trust | $ 5,000 | [3] |  | $ 5,000 | [3] | $ 35,000 |  |
Stated interest rate | 6.78% |  |  |  |  |  |  |
Maturity date | Sep. 06, 2037 |  |  |  |  |  |  |
Interest rate terms, spread over reference rate | 1.85% |  |  |  |  |  |  |
Reference rate | three-month LIBOR, or an appropriate alternative reference rate at the time that LIBOR ceases to be published, plus 1.85% per annum |  |  |  |  |  |  |
[1] | On August 12, 2005, we completed a private placement of $35.0 million of 6.38% Cumulative Trust Preferred Securities. The trust preferred securities were offered by Stifel Financial Capital Trust II (the “Trust II”), a non-consolidated wholly owned subsidiary of our company. The trust preferred securities mature on September 30, 2035, but may be redeemed early by our company, and in turn, the Trust II would call the debenture. The Trust II requires quarterly distributions of interest to the holders of the trust preferred securities. Distributions are payable at a floating interest rate equal to three-month LIBOR, or an appropriate alternative reference rate at the time that LIBOR ceases to be published, plus 1.70% per annum. During 2016, we extinguished $15.0 million of the Trust II debentures.
[2] | On March 30, 2007, we completed a private placement of $35.0 million of 6.79% Cumulative Trust Preferred Securities. The trust preferred securities were offered by Stifel Financial Capital Trust III (the “Trust III”), a non-consolidated wholly owned subsidiary of our company. The trust preferred securities mature on June 6, 2037, but may be redeemed early by our company, and in turn, Trust III would call the debenture. Trust III requires quarterly distributions of interest to the holders of the trust preferred securities. Distributions are payable at a floating interest rate equal to three-month LIBOR, or an appropriate alternative reference rate at the time that LIBOR ceases to be published, plus 1.85% per annum.
[3] | On June 28, 2007, we completed a private placement of $35.0 million of 6.78% Cumulative Trust Preferred Securities. The trust preferred securities were offered by Stifel Financial Capital Trust IV (the “Trust IV”), a non-consolidated wholly owned subsidiary of our company. The trust preferred securities mature on September 6, 2037, but may be redeemed early by our company, and in turn, Trust IV would call the debenture. Trust IV requires quarterly distributions of interest to the holders of the trust preferred securities. Distributions are payable at a floating interest rate equal to three-month LIBOR, or an appropriate alternative reference rate at the time that LIBOR ceases to be published, plus 1.85% per annum.

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