Regulatory Capital Requirements (Tables)

9 Months Ended

Sep. 30, 2021

Regulatory Capital Requirements [Abstract]

Schedule Of Total Risk-Based, Tier 1 Risk-Based, And Tier 1 Leverage 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	$	2,816,734		16.6	%	$	764,693		4.5	%	$	1,104,557		6.5	%
Tier 1 capital		3,501,734		20.6	%		1,019,591		6.0	%		1,359,454		8.0	%
Total capital		3,643,378		21.4	%		1,359,454		8.0	%		1,699,318		10.0	%
Tier 1 leverage		3,501,734		12.0	%		1,164,911		4.0	%		1,456,139		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	$	1,145,805		10.7	%	$	482,722		4.5	%	$	697,264		6.5	%
Tier 1 capital		1,145,805		10.7	%		643,629		6.0	%		858,172		8.0	%
Total capital		1,250,328		11.7	%		858,172		8.0	%		1,072,715		10.0	%
Tier 1 leverage		1,145,805		7.0	%		651,241		4.0	%		814,051		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	$	309,150		20.9	%	$	66,632		4.5	%	$	96,246		6.5	%
Tier 1 capital		309,150		20.9	%		88,843		6.0	%		118,457		8.0	%
Total capital		316,431		21.4	%		118,457		8.0	%		148,071		10.0	%
Tier 1 leverage		309,150		7.1	%		174,525		4.0	%		218,157		5.0	%