Regulatory Capital Requirements (Tables)

9 Months Ended

Sep. 30, 2023

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 September 30, 2023 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	$	3,228,952		13.9	%	$	1,044,849		4.5	%	$	1,509,226		6.5	%
Tier 1 capital		3,913,952		16.9	%		1,393,131		6.0	%		1,857,509		8.0	%
Total capital		4,136,017		17.8	%		1,857,509		8.0	%		2,321,886		10.0	%
Tier 1 leverage		3,913,952		10.8	%		1,454,233		4.0	%		1,817,791		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	$	1,489,819		10.8	%	$	620,224		4.5	%	$	895,878		6.5	%
Tier 1 capital		1,489,819		10.8	%		826,965		6.0	%		1,102,620		8.0	%
Total capital		1,625,012		11.8	%		1,102,620		8.0	%		1,378,275		10.0	%
Tier 1 leverage		1,489,819		7.7	%		774,198		4.0	%		967,748		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	$	690,456		14.6	%	$	212,588		4.5	%	$	307,071		6.5	%
Tier 1 capital		690,456		14.6	%		283,451		6.0	%		377,934		8.0	%
Total capital		722,840		15.3	%		377,934		8.0	%		472,418		10.0	%
Tier 1 leverage		690,456		7.1	%		390,341		4.0	%		487,926		5.0	%