Regulatory Capital Requirements (Tables)

3 Months Ended

Mar. 31, 2025

Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]

Schedule Of Total Risk-Based, Tier 1 Risk-Based, And Tier 1 Leverage Ratios

The amounts and ratios for Stifel Financial Corp., Stifel Bank & Trust, and Stifel Bank as of March 31, 2025 are represented in the tables below (in thousands, except ratios).

	Actual					For Capital Adequacy Purposes					To Be Well Capitalized Under Prompt Corrective Action Provisions
Stifel Financial Corp.	Amount		Ratio			Amount		Ratio			Amount		Ratio
Common equity tier 1 capital	$	3,478,476		14.7	%	$	1,064,749		4.5	%	$	1,537,971		6.5	%
Tier 1 capital		4,163,476		17.6	%		1,419,666		6.0	%		1,892,888		8.0	%
Total capital		4,391,885		18.6	%		1,892,888		8.0	%		2,366,110		10.0	%
Tier 1 leverage		4,163,476		10.8	%		1,535,882		4.0	%		1,919,853		5.0	%

	Actual					For Capital Adequacy Purposes					To Be Well Capitalized Under Prompt Corrective Action Provisions
Stifel Bank & Trust	Amount		Ratio			Amount		Ratio			Amount		Ratio
Common equity tier 1 capital	$	1,373,088		11.1	%	$	556,834		4.5	%	$	804,315		6.5	%
Tier 1 capital		1,373,088		11.1	%		742,445		6.0	%		989,927		8.0	%
Total capital		1,496,220		12.1	%		989,927		8.0	%		1,237,408		10.0	%
Tier 1 leverage		1,373,088		7.1	%		776,381		4.0	%		970,476		5.0	%

	Actual					For Capital Adequacy Purposes					To Be Well Capitalized Under Prompt Corrective Action Provisions
Stifel Bank	Amount		Ratio			Amount		Ratio			Amount		Ratio
Common equity tier 1 capital	$	780,209		13.1	%	$	268,356		4.5	%	$	387,625		6.5	%
Tier 1 capital		780,209		13.1	%		357,807		6.0	%		477,076		8.0	%
Total capital		827,495		13.9	%		477,076		8.0	%		596,346		10.0	%
Tier 1 leverage		780,209		7.1	%		438,621		4.0	%		548,276		5.0	%

	Actual					For Capital Adequacy Purposes					To Be Well Capitalized Under Prompt Corrective Action Provisions
Stifel Financial Corp.	Amount		Ratio			Amount		Ratio			Amount		Ratio
Common equity tier 1 capital	$	3,645,786		15.4	%	$	1,068,371		4.5	%	$	1,543,202		6.5	%
Tier 1 capital		4,330,786		18.2	%		1,424,494		6.0	%		1,899,326		8.0	%
Total capital		4,556,023		19.2	%		1,899,326		8.0	%		2,374,157		10.0	%
Tier 1 leverage		4,330,786		11.4	%		1,522,940		4.0	%		1,903,675		5.0	%

	Actual					For Capital Adequacy Purposes					To Be Well Capitalized Under Prompt Corrective Action Provisions
Stifel Bank & Trust	Amount		Ratio			Amount		Ratio			Amount		Ratio
Common equity tier 1 capital	$	1,366,711		11.1	%	$	555,063		4.5	%	$	801,758		6.5	%
Tier 1 capital		1,366,711		11.1	%		740,084		6.0	%		986,778		8.0	%
Total capital		1,491,850		12.1	%		986,778		8.0	%		1,233,473		10.0	%
Tier 1 leverage		1,366,711		7.1	%		774,495		4.0	%		968,118		5.0	%

	Actual					For Capital Adequacy Purposes					To Be Well Capitalized Under Prompt Corrective Action Provisions
Stifel Bank	Amount		Ratio			Amount		Ratio			Amount		Ratio
Common equity tier 1 capital	$	768,652		13.0	%	$	266,427		4.5	%	$	384,839		6.5	%
Tier 1 capital		768,652		13.0	%		355,236		6.0	%		473,648		8.0	%
Total capital		812,857		13.7	%		473,648		8.0	%		592,060		10.0	%
Tier 1 leverage		768,652		7.1	%		433,925		4.0	%		542,407		5.0	%