Regulatory Capital Requirements (Tables)

12 Months Ended

Dec. 31, 2017

Regulatory Capital Requirements [Abstract]

Schedule Of Total Risk-Based, Tier 1 Risk-Based, And Tier 1 Leverage Ratios

Stifel Financial Corp. – Federal Reserve Capital Amounts

December 31, 2017

	Actual					For Capital Adequacy Purposes					To Be Well Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio			Amount		Ratio			Amount		Ratio
Common equity tier 1 capital	$	1,689,291		16.9	%	$	450,758		4.5	%	$	651,095		6.5	%
Tier 1 capital		1,899,162		19.0			601,011		6.0			801,347		8.0
Total capital		1,966,634		19.6			801,347		8.0			1,001,684		10.0
Tier 1 leverage		1,899,162		9.5			795,679		4.0			994,599		5.0

Stifel Bank – Federal Reserve Capital Amounts

December 31, 2017

	Actual					For Capital Adequacy Purposes					To Be Well Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio			Amount		Ratio			Amount		Ratio
Common equity tier 1 capital	$	1,056,211		14.3	%	$	331,447		4.5	%	$	478,757		6.5	%
Tier 1 capital		1,056,211		14.3			441,930		6.0			589,240		8.0
Total capital		1,124,452		15.3			589,240		8.0			736,550		10.0
Tier 1 leverage		1,056,211		7.1			595,872		4.0			744,840		5.0