Regulatory Capital Requirements (Tables)

12 Months Ended

Dec. 31, 2019

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	$	1,972,832		15.2	%	$	584,162		4.5	%	$	843,790		6.5	%
Tier 1 capital		2,287,085		17.6	%		778,883		6.0	%		1,038,510		8.0	%
Total capital		2,441,808		18.8	%		1,038,510		8.0	%		1,298,138		10.0	%
Tier 1 leverage		2,287,085		10.0	%		917,167		4.0	%		1,146,459		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	$	991,238		12.1	%	$	370,127		4.5	%	$	534,628		6.5	%
Tier 1 capital		995,491		12.1	%		493,503		6.0	%		658,004		8.0	%
Total capital		1,090,271		13.3	%		658,004		8.0	%		822,505		10.0	%
Tier 1 leverage		995,491		7.1	%		559,104		4.0	%		698,880		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	$	154,299		16.9	%	$	40,966		4.5	%	$	59,173		6.5	%
Tier 1 capital		154,299		16.9	%		54,622		6.0	%		72,829		8.0	%
Total capital		164,020		18.0	%		72,829		8.0	%		91,036		10.0	%
Tier 1 leverage		154,299		7.1	%		86,876		4.0	%		108,595		5.0	%