Regulatory Capital Requirements (Tables)

6 Months Ended

Jun. 30, 2022

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 June 30, 2022 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	$	3,151,794		14.8	%	$	957,656		4.5	%	$	1,383,280		6.5	%
Tier 1 capital		3,836,794		18.0	%		1,276,874		6.0	%		1,702,499		8.0	%
Total capital		4,025,640		18.9	%		1,702,499		8.0	%		2,128,123		10.0	%
Tier 1 leverage		3,836,794		11.2	%		1,373,208		4.0	%		1,716,509		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	$	1,482,526		10.8	%	$	620,257		4.5	%	$	895,927		6.5	%
Tier 1 capital		1,482,526		10.8	%		827,009		6.0	%		1,102,679		8.0	%
Total capital		1,606,604		11.7	%		1,102,679		8.0	%		1,378,349		10.0	%
Tier 1 leverage		1,482,526		7.1	%		839,882		4.0	%		1,049,852		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	$	346,827		11.7	%	$	133,692		4.5	%	$	193,110		6.5	%
Tier 1 capital		346,827		11.7	%		178,256		6.0	%		237,674		8.0	%
Total capital		358,934		12.1	%		237,674		8.0	%		297,093		10.0	%
Tier 1 leverage		346,827		7.2	%		192,330		4.0	%		240,413		5.0	%