Consolidated Statements Of Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income		$ 99,439	$ 88,761
Other comprehensive income/(loss), net of tax:
Changes in unrealized gains/(losses) on available-for-sale securities	[1],[2],[3]	25,800	(13,071)
Changes in unrealized gains/(losses) on cash flow hedging instruments	[1],[2],[4]	(1,826)	2,706
Foreign currency translation adjustment	[1],[2]	2,168	3,736
Total other comprehensive income/(loss), net of tax		26,142	(6,629)
Comprehensive income		125,581	82,132
Net income applicable to non-controlling interests		232
Comprehensive income applicable to Stifel Financial Corp.		$ 125,349	$ 82,132

[1] Net of tax expense of $10.1 million and tax benefit of $2.3 million for the three months ended March 31, 2019 and 2018, respectively.

[2] The adoption of ASU 2018-02 on January 1, 2018 resulted in a reclassification of $3.1 million to retained earnings related to cash flow hedges and investment portfolio credit risk.

[3] There were no reclassifications to earnings during the three months ended March 31, 2019 and 2018, respectively.

[4] Amounts are net of reclassifications to earnings of gains of $1.5 million and $0.5 million for the three months ended March 31, 2019 and 2018, respectively.