Regulatory Capital Requirements (Tables)

12 Months Ended

Dec. 31, 2024

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 December 31, 2024, 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	$	3,645,786		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	%