Consolidated Statements Of Financial Condition - USD ($) $ in Thousands		Sep. 30, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents		$ 694,302	$ 696,283
Cash segregated for regulatory purposes		21,585	90,802
Receivables:
Brokerage clients, net		1,466,664	1,384,096
Brokers, dealers, and clearing organizations		646,120	459,107
Securities purchased under agreements to resell	[1]	622,361	512,220
Financial instruments owned, at fair value		1,162,732	1,143,684
Available-for-sale securities, at fair value		3,349,607	3,773,508
Held-to-maturity securities, at amortized cost	[2]	4,565,453	3,698,098
Loans held for sale, at lower of cost or market		262,063	226,068
Bank loans, net		8,253,989	6,947,759
Investments, at fair value		79,170	111,379
Fixed assets, net		297,846	155,120
Goodwill		1,025,714	968,834
Intangible assets, net		118,923	109,627
Loans and advances to financial advisors and other employees, net		383,477	378,124
Deferred tax assets, net		116,880	105,152
Other assets		693,162	624,092
Total Assets		23,760,048	21,383,953
Payables:
Brokerage clients		627,745	828,206
Brokers, dealers, and clearing organizations		928,132	276,302
Drafts		91,639	107,043
Securities sold under agreements to repurchase	[3]	495,484	233,704
Bank deposits		14,502,952	13,411,935
Financial instruments sold, but not yet purchased, at fair value		911,374	778,863
Accrued compensation		379,453	493,973
Accounts payable and accrued expenses		374,456	308,911
Federal Home Loan Bank advances		1,064,000	745,000
Borrowings		140,030	256,000
Senior notes		1,015,714	1,014,940
Debentures to Stifel Financial Capital Trusts		67,500	67,500
Total liabilities		20,598,479	18,522,377
Shareholders’ Equity:
Preferred stock - $1 par value; authorized 3,000,000 shares; 6,000 shares issued		150,000	150,000
Common stock - $0.15 par value; authorized 97,000,000 shares; issued 74,441,001 and 71,636,986 shares, respectively		11,166	10,746
Additional paid-in-capital		1,873,232	1,733,348
Retained earnings		1,265,536	1,033,526
Accumulated other comprehensive loss		(59,389)	(26,736)
Stockholders' Equity before adjustment for Treasury Stock		3,240,545	2,900,884
Treasury stock, at cost, 1,435,882 and 772,302 shares, respectively		(78,976)	(39,308)
Total Shareholders’ Equity		3,161,569	2,861,576
Total Liabilities and Shareholders’ Equity		$ 23,760,048	$ 21,383,953

[1] Collateral received includes securities received by our company from the counterparty. These securities are not included on the consolidated statements of financial condition unless there is an event of default. The fair value of securities pledged as collateral was $621.5 million and $509.4 million at September 30, 2018 and December 31, 2017, respectively.

[2] Held-to-maturity securities are carried in the consolidated statements of financial condition at amortized cost, and the changes in the value of these securities, other than impairment charges, are not reported on the consolidated financial statements.

[3] Collateral pledged includes the fair value of securities pledged by our company to the counter party. These securities are included on the consolidated statements of financial condition unless we default. Collateral pledged by our company to the counter party includes U.S. government agency securities, U.S. government securities, and corporate fixed income securities with market values of $522.4 million and $241.4 million at September 30, 2018 and December 31, 2017, respectively.