Regulatory Capital Requirements (Tables)

12 Months Ended

Dec. 31, 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 December 31, 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	$	3,230,965		14.2	%	$	1,023,670		4.5	%	$	1,478,634		6.5	%
Tier 1 capital		3,915,965		17.2	%		1,364,893		6.0	%		1,819,857		8.0	%
Total capital		4,129,814		18.2	%		1,819,857		8.0	%		2,274,822		10.0	%
Tier 1 leverage		3,915,965		10.5	%		1,498,042		4.0	%		1,872,552		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	$	1,344,589		11.8	%	$	511,437		4.5	%	$	738,743		6.5	%
Tier 1 capital		1,344,589		11.8	%		681,916		6.0	%		909,222		8.0	%
Total capital		1,464,939		12.9	%		909,222		8.0	%		1,136,527		10.0	%
Tier 1 leverage		1,344,589		7.3	%		740,724		4.0	%		925,905		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	$	788,811		11.9	%	$	298,030		4.5	%	$	430,488		6.5	%
Tier 1 capital		788,811		11.9	%		397,374		6.0	%		529,831		8.0	%
Total capital		827,822		12.5	%		529,831		8.0	%		662,289		10.0	%
Tier 1 leverage		788,811		7.2	%		440,792		4.0	%		550,990		5.0	%