Stifel Financial (SF) 10-Q 6 Nov 24 2024 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2024	Nov. 01, 2024
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Entity Registrant Name	STIFEL FINANCIAL CORP
Entity Central Index Key	0000720672
Current Fiscal Year End Date	--12-31
Entity File Number	001-09305
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	43-1273600
Entity Address, Address Line One	501 North Broadway
Entity Address, City or Town	St. Louis
Entity Address, State or Province	MO
Entity Address, Postal Zip Code	63102-2188
City Area Code	314
Local Phone Number	342-2000
Document Quarterly Report	true
Document Transition Report	false
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Common Stock [Member]
Document Information [Line Items]
Trading Symbol	SF
Title of 12(b) Security	Common Stock, $0.15 par value per share
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding	102,352,531
Depository Shares, each representing 1/1,000th interest in a share of 6.25% Non-Cumulative Preferred Stock, Series B [Member]
Document Information [Line Items]
Trading Symbol	SF-PB
Title of 12(b) Security	Depository Shares, each representing 1/1,000th interest in a share of 6.25% Non-Cumulative Preferred Stock, Series B
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		6,400
Depository Shares, each representing 1/1,000th interest in a share of 6.125% Non-Cumulative Preferred Stock, Series C [Member]
Document Information [Line Items]
Trading Symbol	SF-PC
Title of 12(b) Security	Depository Shares, each representing 1/1,000th interest in a share of 6.125% Non-Cumulative Preferred Stock, Series C
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		9,000
Depository Shares, each representing 1/1,000th interest in a share of 4.50% Non-Cumulative Preferred Stock, Series D [Member]
Document Information [Line Items]
Trading Symbol	SF-PD
Title of 12(b) Security	Depository Shares, each representing 1/1,000th interest in a share of 4.50% Non-Cumulative Preferred Stock, Series D
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		12,000
Senior notes 5.20% due 2047 [Member]
Document Information [Line Items]
Trading Symbol	SFB
Title of 12(b) Security	5.20% Senior Notes due 2047
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		225,000,000

Consolidated Statements Of Fina

Consolidated Statements Of Financial Condition - USD ($) $ in Thousands		Sep. 30, 2024		Dec. 31, 2023
Assets
Cash and cash equivalents		$ 1,915,767		$ 3,361,801
Cash segregated for regulatory purposes		29,519		162,048
Receivables:
Brokerage clients, net		916,982		841,507
Brokers, dealers, and clearing organizations		560,984		414,144
Securities purchased under agreements to resell		665,067		349,849
Financial instruments owned, at fair value		1,351,298		918,741
Available-for-sale securities, at fair value		1,618,289	[1]	1,551,686
Held-to-maturity securities, at amortized cost	[2]	6,613,793		5,888,798
Loans:
Held for investment, net		20,167,686		19,305,805
Held for sale, at lower of cost or market		465,739		423,999
Investments, at fair value		93,050		91,105
Fixed assets, net		190,636		191,528
Operating lease right-of-use assets, net		812,659		778,216
Goodwill		1,394,091		1,388,243
Intangible assets, net		117,167		133,279
Loans and advances to financial advisors and other employees, net		702,810		683,486
Deferred tax assets, net		156,439		121,522
Other assets		1,162,528		1,121,703
Total assets		38,934,504		37,727,460
Payables:
Brokerage clients		668,797		734,821
Brokers, dealers, and clearing organizations		210,267		231,736
Drafts		134,430		117,688
Securities sold under agreements to repurchase		657,984		417,644
Bank deposits		28,120,518		27,334,579
Financial instruments sold, but not yet purchased, at fair value		768,909		497,741
Accrued compensation		613,133		585,612
Lease liabilities, net		872,369		825,529
Accounts payable and accrued expenses		654,605		512,050
Senior notes		616,412		1,115,629
Debentures to Stifel Financial Capital Trusts		60,000		60,000
Total liabilities		33,377,424		32,433,029
Equity
Preferred stock - $1 par value; authorized 3,000,000 shares; issued 27,400 shares		685,000		685,000
Common stock - $0.15 par value; authorized 194,000,000 shares; issued 111,662,525 and 111,662,321 shares, respectively		16,749		16,749
Additional paid-in-capital		1,872,468		1,905,097
Retained earnings		3,617,476		3,398,610
Accumulated other comprehensive loss		(40,386)		(74,326)
Treasury stock, at cost, 9,349,460 and 10,600,793 shares, respectively		(594,227)		(636,699)
Total equity		5,557,080		5,294,431
Total liabilities and equity		$ 38,934,504		$ 37,727,460
[1] Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis. 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.

Consolidated Statements Of Fi_2

Consolidated Statements Of Financial Condition (Parenthetical) - $ / shares	Sep. 30, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	3,000,000	3,000,000
Preferred stock, shares issued	27,400	27,400
Common stock, par value	$ 0.15	$ 0.15
Common stock, shares authorized	194,000,000	194,000,000
Common stock, shares issued	111,662,525	111,662,321
Treasury Stock, common, shares	9,349,460	10,600,793

Consolidated Statements of Oper

Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenues:
Commissions		$ 183,445	$ 165,075	$ 552,238	$ 499,983
Principal transactions		137,089	114,841	429,677	336,063
Investment banking		243,182	146,887	690,412	525,591
Asset management		382,616	333,127	1,130,849	968,960
Interest		510,823	505,198	1,515,803	1,439,532
Other income		18,705	459	39,835	(940)
Total revenues		1,475,860	1,265,587	4,358,814	3,769,189
Interest expense		251,192	220,536	753,176	566,624
Net revenues	[1]	1,224,668	1,045,051	3,605,638	3,202,565
Non-interest expenses:
Compensation and benefits		718,065	613,287	2,120,479	1,880,144
Occupancy and equipment rental		89,625	84,396	268,189	251,140
Communications and office supplies		48,869	46,215	144,417	137,320
Commissions and floor brokerage		16,239	14,413	46,389	42,965
Provision for credit losses		5,287	9,992	13,509	22,736
Other operating expenses		129,925	167,319	350,412	367,563
Total non-interest expenses		1,008,010	935,622	2,943,395	2,701,868
Income from operations before income tax expense		216,658	109,429	662,243	500,697
Provision for income taxes		58,153	41,268	174,869	140,645
Net income		158,505	68,161	487,374	360,052
Preferred dividends		9,320	9,321	27,961	27,961
Net income available to common shareholders		$ 149,185	$ 58,840	$ 459,413	$ 332,091
Earnings per common share:
Basic		$ 1.43	$ 0.55	$ 4.41	$ 3.09
Diluted		1.34	0.52	4.16	2.91
Cash dividends declared per common share		$ 0.42	$ 0.36	$ 1.26	$ 1.08
Weighted-average number of common shares outstanding:
Basic		103,966	106,068	104,135	107,580
Diluted		110,994	113,195	110,457	114,170
[1] No individual client accounted for more than 10 percent of total net revenues for the three and nine months ended September 30, 2024 and 2023.

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income		$ 158,505	$ 68,161	$ 487,374	$ 360,052
Other comprehensive income/(loss), net of tax:
Changes in unrealized gains/(losses) on available-for-sale securities	[1],[2]	39,411	(26,172)	31,174	(17,113)
Foreign currency translation adjustment	[1]	4,984	(3,472)	2,766	914
Total other comprehensive income/(loss), net of tax		44,395	(29,644)	33,940	(16,199)
Comprehensive income		$ 202,900	$ 38,517	$ 521,314	$ 343,853
[1] Net of a tax expense of $ 16.3 million and tax benefit of $ 17.9 million for the three months ended September 30, 2024 and 2023, respectively. Net of a tax expense of $ 12.2 million and tax benefit of $ 6.3 million for the nine months ended September 30, 2024 and 2023, respectively. There were no reclassifications to earnings for the nine months ended September 30, 2024. There were no reclassifications to earnings for the three months ended September 30, 2023. Net of reclassifications to earnings of realized losses of $ 5.6 million for the nine months ended September 30, 2023.

Consolidated Statements Of Co_2

Consolidated Statements Of Comprehensive Income (Parenthetical) (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Other comprehensive income/(loss), tax	$ 16.3	$ 17.9	$ 12.2	$ 6.3
Reclassifications to earnings of realized gains/(losses) on available-for-sale securities		$ 0	$ 0	$ 5.6

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total		Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent	Treasury Stock, Common [Member]
Balance, beginning of period at Dec. 31, 2022			$ 685,000	$ 16,749	$ 1,928,069	$ 3,169,095	$ (117,960)	$ (352,482)
Issuance of preferred stock			0
Unit amortization, net of forfeitures					113,426
Distributions under employee plans					(156,080)	(73,069)		143,071
Other					9	1,826
Net Income (Loss)	$ 360,052					360,052
Dividends declared, Common						(130,800)
Dividends declared, Preferred						(27,961)
Unrealized gains/(losses) on securities, net of tax	(17,113)	[1],[2]					(17,113)
Foreign currency translation adjustment, net of tax	914	[1]					914
Common stock repurchased	(300,152)							(300,152)
Balance, end of period at Sep. 30, 2023	5,242,594		685,000	16,749	1,885,424	3,299,143	(134,159)	(509,563)
Balance, beginning of period at Jun. 30, 2023			685,000	16,749	1,856,578	3,286,777	(104,515)	(397,602)
Issuance of preferred stock			0
Unit amortization, net of forfeitures					35,862
Distributions under employee plans					(7,016)	(3,240)		6,849
Other						1
Net Income (Loss)	68,161					68,161
Dividends declared, Common						(43,235)
Dividends declared, Preferred						(9,321)
Unrealized gains/(losses) on securities, net of tax	(26,172)	[1],[2]					(26,172)
Foreign currency translation adjustment, net of tax	(3,472)	[1]					(3,472)
Common stock repurchased	(118,810)							(118,810)
Balance, end of period at Sep. 30, 2023	5,242,594		685,000	16,749	1,885,424	3,299,143	(134,159)	(509,563)
Balance, beginning of period at Dec. 31, 2023	5,294,431		685,000	16,749	1,905,097	3,398,610	(74,326)	(636,699)
Issuance of preferred stock			0
Unit amortization, net of forfeitures					119,399
Distributions under employee plans					(152,308)	(92,168)		141,001
Other					280	(2,252)
Net Income (Loss)	487,374					487,374
Dividends declared, Common						(146,127)
Dividends declared, Preferred						(27,961)
Unrealized gains/(losses) on securities, net of tax	31,174	[1],[2]					31,174
Foreign currency translation adjustment, net of tax	2,766	[1]					2,766
Common stock repurchased	(98,529)							(98,529)
Balance, end of period at Sep. 30, 2024	5,557,080		685,000	16,749	1,872,468	3,617,476	(40,386)	(594,227)
Balance, beginning of period at Jun. 30, 2024			685,000	16,749	1,836,561	3,521,015	(84,781)	(576,337)
Issuance of preferred stock			0
Unit amortization, net of forfeitures					38,430
Distributions under employee plans					(2,610)	(1,323)		2,332
Other					87	(2,694)
Net Income (Loss)	158,505					158,505
Dividends declared, Common						(48,707)
Dividends declared, Preferred						(9,320)
Unrealized gains/(losses) on securities, net of tax	39,411	[1],[2]					39,411
Foreign currency translation adjustment, net of tax	4,984	[1]					4,984
Common stock repurchased	(20,222)							(20,222)
Balance, end of period at Sep. 30, 2024	$ 5,557,080		$ 685,000	$ 16,749	$ 1,872,468	$ 3,617,476	$ (40,386)	$ (594,227)
[1] Net of a tax expense of $ 16.3 million and tax benefit of $ 17.9 million for the three months ended September 30, 2024 and 2023, respectively. Net of a tax expense of $ 12.2 million and tax benefit of $ 6.3 million for the nine months ended September 30, 2024 and 2023, respectively. There were no reclassifications to earnings for the nine months ended September 30, 2024. There were no reclassifications to earnings for the three months ended September 30, 2023. Net of reclassifications to earnings of realized losses of $ 5.6 million for the nine months ended September 30, 2023.

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) (Unaudited) - $ / shares	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023
Statement of Stockholders' Equity [Abstract]
Preferred stock, par value	$ 1	$ 1	$ 1
Common stock, par value	$ 0.15	$ 0.15	$ 0.15

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash Flows From Operating Activities:
Net income	$ 487,374	$ 360,052
Adjustments to reconcile net income to net cash (used in)/provided by operating activities:
Depreciation and amortization	47,487	43,124
Amortization of loans and advances to financial advisors and other employees	115,803	104,703
Amortization of premium on investment portfolio	6,442	7,444
Provision for credit losses and allowance for loans and advances to financial advisors and other employees	13,509	22,736
Amortization of intangible assets	17,710	13,872
Deferred income taxes	(43,545)	(33,022)
Stock-based compensation	118,447	106,237
Unrealized gains on sale of investments	(311)	(2,290)
Gain on sale of leased aircraft engines	(20,816)	0
Other, net	(2,435)	2,141
Receivables:
Brokerage clients	(75,475)	38,711
Brokers, dealers, and clearing organizations	(145,855)	56,477
Securities purchased under agreements to resell	(315,218)	(64,205)
Financial instruments owned, including those pledged	(398,350)	(269,580)
Loans originated as held for sale	(1,531,378)	(614,254)
Proceeds from loans held for sale	1,383,014	626,663
Loans and advances to financial advisors and other employees	(141,509)	(130,665)
Other assets	114,950	(31,913)
Increase/(decrease) in operating liabilities, net of liabilities assumed:
Brokerage clients	(66,024)	(65,852)
Brokers, dealers, and clearing organizations	(38,031)	60,363
Drafts	16,742	(24,780)
Financial instruments sold, but not yet purchased	236,961	93,131
Other liabilities and accrued expenses	16,363	(74,940)
Net cash (used in)/provided by operating activities	(204,145)	224,153
Cash Flows From Investing Activities:
Principal paydowns, calls, maturities, and sales of available-for-sale securities	206,665	112,928
Calls and principal paydowns of held-to-maturity securities	1,537,637	89,815
Sale or maturity of investments	5,204	15,694
Sale of leased aircraft engines	44,248	0
(Increase)/decrease in loans held for investment, net	(764,645)	147,629
Payments for:
Purchase of fixed assets	(56,357)	(39,026)
Purchase of available-for-sale securities	(237,640)	(19,635)
Purchase of held-to-maturity securities	(2,262,874)	0
Purchase of investments	(8,098)	(15,272)
Acquisitions, net of cash received	(8,106)	(113,452)
Net cash (used in)/provided by investing activities	(1,543,966)	178,681
Cash Flows From Financing Activities:
Payment of contingent consideration	(902)	(6,045)
Increase in securities sold under agreements to repurchase	240,340	196,939
Increase in bank deposits, net	785,939	477,247
Increase in securities loaned	16,562	36,465
Tax payments related to shares withheld for stock-based compensation plans	(104,029)	(83,909)
Repayment of senior notes	(500,000)	0
Repurchase of common stock	(98,529)	(300,152)
Cash dividends on preferred stock	(27,961)	(27,961)
Cash dividends paid to common stock and equity-award holders	(144,638)	(123,582)
Net cash provided by financing activities	166,782	169,002
Effect of exchange rate changes on cash	2,766	914
(Decrease)/increase in cash, cash equivalents, and cash segregated for regulatory purposes	(1,578,563)	572,750
Cash, cash equivalents, and cash segregated for regulatory purposes at beginning of period	3,523,849	2,229,002
Cash, cash equivalents, and cash segregated for regulatory purposes at end of period	1,945,286	2,801,752
Supplemental disclosure of cash flow information:
Cash paid for interest	763,539	575,121
Cash paid for income taxes, net of refunds	185,354	104,569
Noncash financing activities:
Unit grants, net of forfeitures	$ 157,748	$ 179,078

Cash, Cash Equivalents, and Cas

Cash, Cash Equivalents, and Cash Restricted for Regulatory Purposes for Periods Presented in Consolidated Statement of Financial Condition - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Statement of Cash Flows [Abstract]
Cash and cash equivalents	$ 1,915,767	$ 3,361,801
Cash segregated for regulatory purposes	29,519	162,048
Total cash, cash equivalents, and cash segregated for regulatory purposes	$ 1,945,286	$ 3,523,849

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ 158,505	$ 68,161	$ 487,374	$ 360,052

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Sep. 30, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Nature of Operations, Basis of

Nature of Operations, Basis of Presentation, and Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations, Basis of Presentation, and Summary of Significant Accounting Policies	NOTE 1 – Nature of Operations, Basis of Presentation, and Summary of Significant Accounting Policies Nature of Operations Stifel Financial Corp. (the “Company”), through its wholly owned subsidiaries, is principally engaged in retail brokerage; securities trading; investment banking; investment advisory; retail, consumer, and commercial banking; and related financial services. Our major geographic area of concentration is throughout the United States, with a presence in the United Kingdom, Europe, and Canada. Our company’s principal customers are individual investors, corporations, municipalities, and institutions. Basis of Presentation The consolidated financial statements include Stifel Financial Corp. and its wholly owned subsidiaries, principally Stifel, Nicolaus & Company, Incorporated (“Stifel”), Keefe, Bruyette & Woods, Inc. (“KBW”), Stifel Bancorp, Inc. (“Stifel Bancorp”), Stifel Nicolaus Canada Inc. (“SNC”), and Stifel Nicolaus Europe Limited (“SNEL”). Unless otherwise indicated, the terms “we,” “us,” “our,” or “our company” in this report refer to Stifel Financial Corp. and its wholly owned subsidiaries. We have prepared the accompanying unaudited consolidated financial statements pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Pursuant to these rules and regulations, we have omitted certain information and footnote disclosures we normally include in our annual consolidated financial statements prepared in accordance with U.S. generally accepted accounting principles. In management’s opinion, we have made all adjustments (consisting only of normal, recurring adjustments, except as otherwise noted) necessary to fairly present our financial position, results of operations and cash flows. Our interim period operating results do not necessarily indicate the results that may be expected for any other interim period or for the full fiscal year. These financial statements and accompanying notes should be read in conjunction with the consolidated financial statements and the notes thereto in our Annual Report on Form 10-K for the year ended December 31, 2023 on file with the SEC. Certain amounts from prior periods have been reclassified to conform to the current period’s presentation. The effect of these reclassifications on our company’s previously reported consolidated financial statements was not material. Consolidation Policies The consolidated financial statements include the accounts of Stifel Financial Corp. and its subsidiaries. All material intercompany balances and transactions have been eliminated in consolidation. We have investments or interests in other entities for which we must evaluate whether to consolidate by determining whether we have a controlling financial interest or are considered to be the primary beneficiary. Under our current consolidation policy we consolidate those entities where we have the power to direct the activities of the entity that most significantly impact the entity’s economic performance and the obligation to absorb losses of the entity or the rights to receive benefits from the entity that could potentially be significant to the entity. We determine whether we are the primary beneficiary of a variable interest entity (“VIE”) by performing an analysis of the VIE’s control structure, expected benefits and losses, and expected residual returns. This analysis includes a review of, among other factors, the VIE’s capital structure, contractual terms, which interests create or absorb benefits or losses, variability, related party relationships, and the design of the VIE. We reassess our evaluation of whether an entity is a VIE when certain reconsideration events occur. We reassess our determination of whether we are the primary beneficiary of a VIE on an ongoing basis based on current facts and circumstances. See Note 25 for additional information on VIEs.

New Accounting Pronouncements

New Accounting Pronouncements	9 Months Ended
	Sep. 30, 2024
Accounting Standards Update and Change in Accounting Principle [Abstract]
New Accounting Pronouncements	NOTE 2 – New Accounting Pronouncements Recently Adopted Accounting Guidance Fair Value Measurement In June 2022, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2022-03, “Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions” (ASU 2022-03), an update to ASC Topic 820 – Fair Value Measurement. The amendments in ASU 2022-03 clarify that a contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security and, therefore, is not considered in measuring fair value. The amendments clarify that an entity cannot, as a separate unit of account, recognize and measure a contractual sale restriction. The amendments require new disclosures related to equity securities subject to contractual sale restrictions, including the fair value of such equity securities, the nature and remaining duration of the corresponding restrictions, and any circumstances that could cause a lapse in the restrictions. The amendments are effective for annual reporting periods beginning after December 15, 2023 (January 1, 2024, for our company), and for the interim periods within those annual reporting periods. The adoption of the accounting update did not have a material impact on our consolidated financial statements. Leases In March 2023, the FASB issued ASU 2023-01, “Leases (Topic 842): Common Control Arrangements,” which requires entities to classify and account for leases with related parties on the basis of legally enforceable terms and conditions of the arrangement. The accounting update is effective for interim and annual periods beginning after December 15, 2023 (January 1, 2024, for our company). The adoption of the accounting update did not have a material impact on our consolidated financial statements. Segment Reporting In November 2023, the FASB issued ASU 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures,” which requires enhanced disclosures for significant expenses by reportable operating segment. Significant expense categories and amounts are those regularly provided to the chief operating decision maker (CODM) and included in the measure of a segment’s profit or loss. The updated guidance will also require us to disclose the title and position of our CODM, including an explanation of how our CODM uses the reported measure(s) of segment profit or loss in assessing segment performance and deciding how to allocate resources. The accounting update is effective for annual periods beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. While the adoption of the accounting update will not have a material impact on our consolidated financial statements, we are currently evaluating the impact to our segment disclosures. Recently Issued Accounting Guidance Income Taxes In December 2023, the FASB issued ASU 2023-09, “Income Taxes (Topic 240): Improvements to Income Tax Disclosures,” which requires additional disclosure and disaggregated information in the Income Tax Rate reconciliation using both percentages and reporting currency amounts, with additional qualitative explanations of individually significant reconciling items. The updated guidance also requires disclosure of the amount of income taxes paid (net of refunds received) disaggregated by jurisdictional categories (federal (national), state, and foreign). The accounting update is effective for annual periods beginning after December 15, 2024 (January 1, 2025 for our company), with early adoption permitted. We are currently assessing the updated guidance; however, it is not expected to have a material impact to our consolidated financial statements.

Receivables From and Payables t

Receivables From and Payables to Brokers, Dealers and Clearing Organizations	9 Months Ended
	Sep. 30, 2024
Due to and from Broker-Dealers and Clearing Organizations [Abstract]
Receivables From and Payables to Brokers, Dealers and Clearing Organizations	NOTE 3 – Receivables From and Payables to Brokers, Dealers, and Clearing Organizations Amounts receivable from brokers, dealers, and clearing organizations at September 30, 2024 and December 31, 2023, included (in thousands) : September 30, December 31, Receivable from clearing organizations $ 262,949 $ 178,991 Deposits paid for securities borrowed 252,037 215,368 Securities failed to deliver 45,998 19,785 $ 560,984 $ 414,144 Amounts payable to brokers, dealers, and clearing organizations at September 30, 2024 and December 31, 2023, included (in thousands) : September 30, December 31, Deposits received from securities loaned $ 152,255 $ 135,693 Securities failed to receive 42,296 91,636 Payable to clearing organizations 15,716 4,407 $ 210,267 $ 231,736 Deposits paid for securities borrowed approximate the market value of the securities. Securities failed to deliver and receive represent the contract value of securities that have not been delivered or received on settlement date.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Fair Value Measurements	NOTE 4 – Fair Value Measurements We measure certain financial assets and liabilities at fair value on a recurring basis, including financial instruments owned, available-for-sale securities, investments, financial instruments sold, but not yet purchased, and derivatives. We generally utilize third-party pricing services to value Level 1 and Level 2 available-for-sale investment securities, as well as certain derivatives designated as cash flow hedges. We review the methodologies and assumptions used by the third-party pricing services and evaluate the values provided, principally by comparison with other available market quotes for similar instruments and/or analysis based on internal models using available third-party market data. We may occasionally adjust certain values provided by the third-party pricing service when we believe, as the result of our review, that the adjusted price most appropriately reflects the fair value of the particular security. Following are descriptions of the valuation methodologies and key inputs used to measure financial assets and liabilities recorded at fair value. The descriptions include an indication of the level of the fair value hierarchy in which the assets or liabilities are classified. Financial Instruments Owned and Available-For-Sale Securities When available, the fair value of financial instruments is based on quoted prices in active markets and reported in Level 1. Level 1 financial instruments include highly liquid instruments with quoted prices, primarily U.S. government securities and corporate equity securities listed in active markets. If quoted prices are not available for identical instruments, fair values are obtained from pricing services, broker quotes, or other model-based valuation techniques with observable inputs, such as the present value of estimated cash flows, and reported as Level 2. The nature of these financial instruments include instruments for which quoted prices are available but traded less frequently, instruments whose fair value has been derived using a model where inputs to the model are directly observable in the market, or can be derived principally from or corroborated by observable market data, and instruments that are fair valued using other financial instruments, the parameters of which can be directly observed. Level 2 financial instruments include U.S. government agency securities, agency mortgage-backed securities, asset-backed securities, fixed income and equity securities infrequently traded, state and municipal securities, and non-agency mortgage-backed securities and sovereign debt securities, included in other in the table below. We have identified Level 3 financial instruments to include certain asset-backed securities and syndicated loans, included in other in the table below, with unobservable pricing inputs. Level 3 financial instruments have little to no pricing observability as of the report date. These financial instruments do not have active two-way markets and are measured using management’s best estimate of fair value, where the inputs into the determination of fair value require significant management judgment or estimation. Investments Investments carried at fair value primarily include corporate equity securities, auction-rate securities (“ARS”), and private company investments. Corporate equity securities are primarily valued based on quoted prices in active markets and reported in Level 1. Corporate equity securities that have little to no pricing observability are reported in Level 3. ARS are primarily valued based upon our expectations of issuer redemptions and using internal discounted cash flow models that utilize unobservable inputs. ARS are reported as Level 3 assets. Private company investments are primarily valued based upon internally developed models. These valuations require significant management judgment due to the absence of quoted market prices, the inherent lack of liquidity, and their long-term nature. Typically, the initial costs of these investments are considered to represent fair market value, as such amounts are negotiated between willing market participants. Private company investments are primarily reported as Level 3 assets. Investments at fair value include investments in funds, including certain money market funds that are measured at net asset value (“NAV”). The Company uses NAV to measure the fair value of its fund investments when (i) the fund investment does not have a readily determinable fair value and (ii) the NAV of the investment fund is calculated in a manner consistent with the measurement principles of investment company accounting, including measurement of the underlying investments at fair value. The Company’s investments in funds measured at NAV include partnership interests, mutual funds, money market funds, and private equity funds. Private equity funds primarily invest in a broad range of industries worldwide in a variety of situations, including leveraged buyouts, recapitalizations, growth investments and distressed investments. The private equity funds are primarily closed-end funds in which the Company’s investments are generally not eligible for redemption. Distributions will be received from these funds as the underlying assets are liquidated or distributed. The general and limited partnership interests in investment partnerships were primarily valued based upon NAVs received from third-party fund managers. The various partnerships are investment companies, which record their underlying investments at fair value based on fair value policies established by management of the underlying fund. Fair value policies at the underlying fund generally require the funds to utilize pricing/valuation information, including independent appraisals, from third-party sources. However, in some instances, current valuation information for illiquid securities or securities in markets that are not active may not be available from any third-party source or fund management may conclude that the valuations that are available from third-party sources are not reliable. In these instances, fund management may perform model-based analytical valuations that may be used as an input to value these investments. The table below presents the fair value of our investments in, and unfunded commitments to, funds that are measured at NAV as of September 30, 2024 and December 31, 2023 (in thousands) : September 30, 2024 December 31, 2023 Fair value of investments Unfunded commitments Fair value of investments Unfunded commitments Partnership interests $ 26,025 $ 11,692 $ 24,261 $ 14,454 Money market funds 1,768 — 4,706 — Mutual funds 570 — 3,632 — Private equity funds 448 1,181 368 1,181 Total $ 28,811 $ 12,873 $ 32,967 $ 15,635 Financial Instruments Sold, But Not Yet Purchased Financial instruments sold, but not purchased, recorded at fair value based on quoted prices in active markets and other observable market data include highly liquid instruments with quoted prices, such as U.S. government securities and corporate equity securities listed in active markets, which are reported as Level 1. If quoted prices are not available, fair values are obtained from pricing services, broker quotes, or other model-based valuation techniques with observable inputs, such as the present value of estimated cash flows, and reported as Level 2. The nature of these financial instruments include instruments for which quoted prices are available but traded less frequently, instruments whose fair value has been derived using a model where inputs to the model are directly observable in the market, or can be derived principally from or corroborated by observable market data, and instruments that are fair valued using other financial instruments, the parameters of which can be directly observed. Level 2 financial instruments include agency mortgage-backed securities not actively traded, fixed income securities, and U.S. government agency securities, sovereign debt, state and municipal securities, and asset-backed securities, included in other in the table below. We have identified Level 3 financial instruments to include syndicated loans, included in other in the table below. Level 3 financial instruments have little to no pricing observability as of the report date. These financial instruments do not have active two-way markets and are measured using management’s best estimate of fair value, where the inputs into the determination of fair value require significant management judgment or estimation. Derivatives Derivatives are valued using quoted market prices for identical instruments when available or observable inputs from forward and futures yield curves. The valuation models used require market observable inputs, including contractual terms, market prices, yield curves, credit curves, and measures of volatility. We have classified our derivatives as Level 2. The counterparties to most of our company’s derivative transactions represent regulated banks, bank holding companies, and derivative clearing houses. Management has determined that the counterparty credit risk associated with its derivative transactions is not significant. Accordingly, the recorded fair values for these transactions have not been adjusted to reflect counterparty credit risk. Assets and liabilities measured at fair value on a recurring basis as of September 30, 2024, are presented below (in thousands) : September 30, 2024 Total Level 1 Level 2 Level 3 Financial instruments owned: U.S. government securities $ 19,662 $ 19,662 $ — $ — U.S. government agency securities 198,038 — 198,038 — Agency mortgage-backed securities 369,513 — 369,513 — Asset-backed securities 96,290 — 95,155 1,135 Corporate securities: Fixed income securities 302,247 — 302,247 — Equity securities 58,526 56,605 1,921 — State and municipal securities 244,491 — 244,491 — Other (1) 62,531 — 4,006 58,525 Total financial instruments owned 1,351,298 76,267 1,215,371 59,660 Available-for-sale securities: U.S. government agency securities 2,298 — 2,298 — State and municipal securities 2,351 — 2,351 — Mortgage-backed securities: Agency 925,385 — 925,385 — Commercial 67,898 — 67,898 — Non-agency 215 — 215 — Corporate fixed income securities 486,817 — 486,817 — Asset-backed securities 133,325 — 133,325 — Total available-for-sale securities 1,618,289 — 1,618,289 — Investments: Corporate equity securities 25,887 13,795 214 11,878 Auction rate securities 738 — — 738 Other (2) 39,382 35 — 39,347 Investments in funds and partnerships measured at NAV 27,043 Total investments 93,050 13,830 214 51,963 Cash equivalents measured at NAV 1,768 Derivative contracts (3) 95,327 — 95,327 — $ 3,159,732 $ 90,097 $ 2,929,201 $ 111,623 (1) Includes syndicated loans, non-agency mortgage-backed securities, and sovereign debt. (2) Primarily includes private company investments. (3) Included in other assets in the consolidated statements of financial condition. September 30, 2024 Total Level 1 Level 2 Level 3 Liabilities: Financial instruments sold, but not yet purchased: U.S. government securities $ 441,703 $ 441,703 $ — $ — Agency mortgage-backed securities 114,969 — 114,969 — Corporate securities: Fixed income securities 186,964 — 186,964 — Equity securities 24,221 24,221 — — Other (4) 1,052 — 334 718 Total financial instruments sold, but not yet purchased 768,909 465,924 302,267 718 Derivative contracts (5) 95,314 — 95,314 — $ 864,223 $ 465,924 $ 397,581 $ 718 (4) Includes syndicated loans, U.S. government agency securities, and sovereign debt. (5) Included in accounts payable and accrued expenses in the consolidated statements of financial condition. Assets and liabilities measured at fair value on a recurring basis as of December 31, 2023, are presented below (in thousands) : December 31, 2023 Total Level 1 Level 2 Level 3 Financial instruments owned: U.S. government securities $ 32,411 $ 32,411 $ — $ — U.S. government agency securities 106,634 — 106,634 — Agency mortgage-backed securities 159,903 — 159,903 — Asset-backed securities 19,604 — 18,106 1,498 Corporate securities: Fixed income securities 237,671 210 237,461 — Equity securities 52,520 52,158 362 — State and municipal securities 223,155 — 223,155 — Other (1) 86,843 — 3,879 82,964 Total financial instruments owned 918,741 84,779 749,500 84,462 Available-for-sale securities: U.S. government agency securities 2,219 — 2,219 — State and municipal securities 2,351 — 2,351 — Mortgage-backed securities: Agency 746,170 — 746,170 — Commercial 66,671 — 66,671 — Non-agency 261 — 261 — Corporate fixed income securities 556,161 — 556,161 — Asset-backed securities 177,853 — 177,853 — Total available-for-sale securities 1,551,686 — 1,551,686 — Investments: Corporate equity securities 22,406 10,313 215 11,878 Auction rate securities 783 — — 783 Other (2) 39,655 73 115 39,467 Investments in funds and partnerships measured at NAV 28,261 Total investments 91,105 10,386 330 52,128 Cash equivalents measured at NAV 4,706 Derivative contracts (3) 118,668 — 118,668 — $ 2,684,906 $ 95,165 $ 2,420,184 $ 136,590 (1) Includes syndicated loans, non-agency mortgage-backed securities, and sovereign debt. (2) Primarily includes private company investments. (3) Included in other assets in the consolidated statements of financial condition. December 31, 2023 Total Level 1 Level 2 Level 3 Liabilities: Financial instruments sold, but not yet purchased: U.S. government securities $ 273,653 $ 273,653 $ — $ — U.S. government agency securities 4,924 — 4,924 — Agency mortgage-backed securities 52,664 — 52,664 — Corporate securities: Fixed income securities 138,359 — 138,359 — Equity securities 21,576 21,576 — — Other (4) 6,565 — 2,729 3,836 Total financial instruments sold, but not yet purchased 497,741 295,229 198,676 3,836 Derivative contracts (5) 118,651 — 118,651 — $ 616,392 $ 295,229 $ 317,327 $ 3,836 (4) Includes syndicated loans, state and municipal securities, and asset-backed securities. (5) Included in accounts payable and accrued expenses in the consolidated statements of financial condition . The following table summarizes the changes in fair value associated with Level 3 financial instruments during the three months ended September 30, 2024 (in thousands) : Three Months Ended September 30, 2024 Financial instruments owned Investments Asset-Backed Securities Syndicated Loans Corporate Equity Securities Auction Rate Other Balance at June 30, 2024 $ 1,203 $ 65,713 $ 11,878 $ 739 $ 39,349 Unrealized gains/(losses) — 146 — ( 1 ) ( 2 ) Realized gains/(losses) 97 ( 1,460 ) — — — Purchases — 19,118 — — — Sales — ( 16,866 ) — — — Redemptions ( 165 ) ( 8,126 ) — — — Net change ( 68 ) ( 7,188 ) — ( 1 ) ( 2 ) Balance at September 30, 2024 $ 1,135 $ 58,525 $ 11,878 $ 738 $ 39,347 The following table summarizes the change in fair value associated with Level 3 financial instruments during the nine months ended September 30, 2024 (in thousands): Nine Months Ended September 30, 2024 Financial instruments owned Investments Asset-Backed Securities Syndicated Loans Corporate Equity Securities Auction Rate Other Balance at December 31, 2023 $ 1,498 $ 82,964 $ 11,878 $ 783 $ 39,467 Unrealized gains/(losses) — 1,694 — ( 45 ) ( 120 ) Realized gains/(losses) 1,397 ( 3,252 ) — — — Purchases — 47,546 — — — Sales — ( 49,810 ) — — — Redemptions ( 1,760 ) ( 20,617 ) — — — Net change ( 363 ) ( 24,439 ) — ( 45 ) ( 120 ) Balance at September 30, 2024 $ 1,135 $ 58,525 $ 11,878 $ 738 $ 39,347 The results included in the tables above are only a component of the overall investment strategies of our company. The tables above do not present Level 1 or Level 2 valued assets or liabilities. The changes in unrealized gains/(losses) recorded in earnings for the three and nine months ended September 30, 2024, relating to Level 3 assets still held at September 30, 2024, were immaterial. The fair value of certain Level 3 assets was determined using various methodologies, as appropriate, including third-party pricing vendors and broker quotes. These inputs are evaluated for reasonableness through various procedures, including due diligence reviews of third-party pricing vendors, variance analyses, consideration of current market environment, and other analytical procedures. The fair value for our auction rate securities was determined using an income approach based on an internally developed discounted cash flow model. The discounted cash flow model utilizes two significant unobservable inputs: discount rate and workout period. Significant increases in any of these inputs in isolation would result in a significantly lower fair value. On an ongoing basis, management verifies the fair value by reviewing the appropriateness of the discounted cash flow model and its significant inputs. Fair Value of Financial Instruments The following reflects the fair value of financial instruments as of September 30, 2024 and December 31, 2023, whether or not recognized in the consolidated statements of financial condition at fair value (in thousands) . September 30, 2024 December 31, 2023 Carrying Estimated Carrying Estimated Financial assets: Cash and cash equivalents $ 1,915,767 $ 1,915,767 $ 3,361,801 $ 3,361,801 Cash segregated for regulatory purposes 29,519 29,519 162,048 162,048 Securities purchased under agreements to resell 665,067 665,067 349,849 349,849 Financial instruments owned 1,351,298 1,351,298 918,741 918,741 Available-for-sale securities 1,618,289 1,618,289 1,551,686 1,551,686 Held-to-maturity securities 6,613,793 6,626,453 5,888,798 5,852,176 Bank loans 20,167,686 19,447,489 19,305,805 18,259,923 Loans held for sale 465,739 465,739 423,999 423,999 Investments 93,050 93,050 91,105 91,105 Derivative contracts (1) 95,327 95,327 118,668 118,668 Financial liabilities: Securities sold under agreements to repurchase $ 657,984 $ 657,984 $ 417,644 $ 417,644 Bank deposits 28,120,518 26,182,382 27,334,579 25,326,174 Financial instruments sold, but not yet purchased 768,909 768,909 497,741 497,741 Senior notes 616,412 592,839 1,115,629 1,041,217 Debentures to Stifel Financial Capital Trusts 60,000 55,508 60,000 55,507 Derivative contracts (2) 95,314 95,314 118,651 118,651 (1) Included in other assets in the consolidated statements of financial condition. (2) Included in accounts payable and accrued expenses in the consolidated statements of financial condition. The following tables present the estimated fair values of financial instruments not measured at fair value on a recurring basis as of September 30, 2024 and December 31, 2023 (in thousands) : September 30, 2024 Total Level 1 Level 2 Level 3 Financial assets: Cash $ 1,913,999 $ 1,913,999 $ — $ — Cash segregated for regulatory purposes 29,519 29,519 — — Securities purchased under agreements to resell 665,067 — 665,067 — Held-to-maturity securities 6,626,453 — 6,555,074 71,379 Bank loans 19,447,489 — 19,447,489 — Loans held for sale 465,739 — 465,739 — Financial liabilities: Securities sold under agreements to repurchase $ 657,984 $ — $ 657,984 $ — Bank deposits 26,182,382 — 26,182,382 — Senior notes 592,839 592,839 — — Debentures to Stifel Financial Capital Trusts 55,508 — — 55,508 December 31, 2023 Total Level 1 Level 2 Level 3 Financial assets: Cash $ 3,357,095 $ 3,357,095 $ — $ — Cash segregated for regulatory purposes 162,048 162,048 — — Securities purchased under agreements to resell 349,849 — 349,849 — Held-to-maturity securities 5,852,176 — 5,758,130 94,046 Bank loans 18,259,923 — 18,259,923 — Loans held for sale 423,999 — 423,999 — Financial liabilities: Securities sold under agreements to repurchase $ 417,644 $ — $ 417,644 $ — Bank deposits 25,326,174 — 25,326,174 — Senior notes 1,041,217 1,041,217 — — Debentures to Stifel Financial Capital Trusts 55,507 — — 55,507 The following, as supplemented by the discussion above, describes the valuation techniques used in estimating the fair value of our financial instruments as of September 30, 2024 and December 31, 2023. Financial Assets Securities Purchased Under Agreements to Resell Securities purchased under agreements to resell are collateralized financing transactions that are recorded at their contractual amounts plus accrued interest. The carrying values at September 30, 2024 and December 31, 2023 approximate fair value due to their short-term nature. Held-to-Maturity Securities Securities held to maturity are recorded at amortized cost based on our company’s positive intent and ability to hold these securities to maturity. Securities held to maturity include asset-backed securities, consisting of collateralized loan obligation securities and student loan ARS. The estimated fair value, included in the above table, is determined using several factors; however, primary weight is given to discounted cash flow modeling techniques that incorporated an estimated discount rate based upon recent observable debt security issuances with similar characteristics. Bank Loans The fair values of mortgage loans and commercial loans were estimated using a discounted cash flow method, a form of the income approach. Discount rates were determined considering rates at which similar portfolios of loans, with similar remaining maturities, would be made and considering liquidity spreads applicable to each loan portfolio based on the secondary market. Loans Held for Sale Loans held for sale consist of fixed-rate and adjustable-rate residential real estate mortgage loans intended for sale. Loans held for sale are stated at lower of cost or market value. Market value is determined based on prevailing market prices for loans with similar characteristics or on sale contract prices. Financial Liabilities Securities Sold Under Agreements to Repurchase Securities sold under agreements to repurchase are collateralized financing transactions that are recorded at their contractual amounts plus accrued interest. The carrying values at September 30, 2024 and December 31, 2023 approximate fair value due to the short-term nature. Bank Deposits The fair value of interest-bearing deposits, including certificates of deposits, demand deposits, savings, and checking accounts, was calculated by discounting the future cash flows using discount rates based on the replacement cost of funding of similar structures and terms. Senior Notes The fair value of our senior notes is estimated based upon quoted market prices. Debentures to Stifel Financial Capital Trusts The fair value of our trust preferred securities is based on the discounted value of contractual cash flows. We have assumed a discount rate based on similar type debt instruments. These fair value disclosures represent our best estimates based on relevant market information and information about the financial instruments. Fair value estimates are based on judgments regarding future expected losses, current economic conditions, risk characteristics of the various instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in the above methodologies and assumptions could significantly affect the estimates.

Financial Instruments Owned and

Financial Instruments Owned and Financial Instruments Sold, But Not Yet Purchased	9 Months Ended
	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Financial Instruments Owned and Financial Instruments Sold, But Not Yet Purchased	NOTE 5 – Financial Instruments Owned and Financial Instruments Sold, But Not Yet Purchased The components of financial instruments owned and financial instruments sold, but not yet purchased, at September 30, 2024 and December 31, 2023 are as follows (in thousands) : September 30, December 31, Financial instruments owned: U.S. government securities $ 19,662 $ 32,411 U.S. government agency securities 198,038 106,634 Agency mortgage-backed securities 369,513 159,903 Asset-backed securities 96,290 19,604 Corporate securities: Fixed income securities 302,247 237,671 Equity securities 58,526 52,520 State and municipal securities 244,491 223,155 Other (1) 62,531 86,843 $ 1,351,298 $ 918,741 Financial instruments sold, but not yet purchased: U.S. government securities $ 441,703 $ 273,653 Agency mortgage-backed securities 114,969 52,664 Corporate securities: Fixed income securities 186,964 138,359 Equity securities 24,221 21,576 Other (2) 1,052 11,489 $ 768,909 $ 497,741 (1) Includes syndicated loans, non-agency mortgage-backed securities, and sovereign debt. (2) Includes syndicated loans, U.S. government agency securities, sovereign debt, state and municipal securities, and asset-backed securities. At September 30, 2024 and December 31, 2023, financial instruments owned in the amount of $ 563.1 million and $ 303.2 million, respectively, were pledged as collateral for our repurchase agreements and short-term borrowings. Our financial instruments owned are presented on a trade-date basis in the consolidated statements of financial condition. Financial instruments sold, but not yet purchased, represent obligations of our company to deliver the specified security at the contracted price, thereby creating a liability to purchase the security in the market at prevailing prices in future periods. We are obligated to acquire the securities sold short at prevailing market prices in future periods, which may exceed the amount reflected in the consolidated statements of financial condition.

Available-For-Sale And Held-To-

Available-For-Sale And Held-To-Maturity Securities	9 Months Ended
	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Available-for-Sale and Held-to-Maturity Securities	NOTE 6 – Available-for-Sale and Held-to-Maturity Securities The following tables provide a summary of the amortized cost and fair values of the available-for-sale securities and held-to-maturity securities at September 30, 2024 and December 31, 2023 (in thousands) : September 30, 2024 Amortized Gross (1) Gross (1) Fair Value Available-for-sale securities U.S. government agency securities $ 2,399 $ 10 $ ( 111 ) $ 2,298 State and municipal securities 2,350 1 — 2,351 Mortgage-backed securities: Agency 1,017,358 1,202 ( 93,175 ) 925,385 Commercial 69,659 — ( 1,761 ) 67,898 Non-agency 224 — ( 9 ) 215 Corporate fixed income securities 526,303 — ( 39,486 ) 486,817 Asset-backed securities 134,111 74 ( 860 ) 133,325 $ 1,752,404 $ 1,287 $ ( 135,402 ) $ 1,618,289 Held-to-maturity securities (2) Asset-backed securities $ 6,613,793 $ 17,893 $ ( 5,233 ) $ 6,626,453 December 31, 2023 Amortized Gross (1) Gross (1) Fair Value Available-for-sale securities U.S. government agency securities $ 2,376 $ 5 $ ( 162 ) $ 2,219 State and municipal securities 2,350 1 — 2,351 Mortgage-backed securities: Agency 855,456 — ( 109,286 ) 746,170 Commercial 70,326 — ( 3,655 ) 66,671 Non-agency 274 — ( 13 ) 261 Corporate fixed income securities 615,131 — ( 58,970 ) 556,161 Asset-backed securities 181,717 — ( 3,864 ) 177,853 $ 1,727,630 $ 6 $ ( 175,950 ) $ 1,551,686 Held-to-maturity securities (2) Asset-backed securities $ 5,888,798 $ 6,387 $ ( 43,009 ) $ 5,852,176 (1) Unrealized gains/(losses) related to available-for-sale securities are reported in accumulated other comprehensive loss. (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. We are required to evaluate our available-for-sale and held-to-maturity debt securities for any expected losses with recognition of an allowance for credit losses, when applicable. At September 30, 2024, we did no t have an allowance for credit losses recorded on our investment portfolio. Accrued interest receivable for our investment portfolio at September 30, 2024 and December 31, 2023 was $ 99.1 million and $ 95.7 million, respectively, and is reported in other assets in the consolidated statements of financial condition. We do not include reserves for interest receivable in the measurement of the allowance for credit losses. There were no sales of available-for-sale securities during the three and nine months ended September 30, 2024. There were no sales of available-for-sale securities during the three months ended September 30, 2023. During the nine months ended September 30, 2023, we received proceeds of $ 2.4 million from the sale of available-for-sale securities, which resulted in a realized loss of $ 7.6 million. The table below summarizes the amortized cost and fair values of our securities by contractual maturity at September 30, 2024 and December 31, 2023 (in thousands) . Expected maturities may differ significantly from contractual maturities, as issuers may have the right to call or prepay obligations with or without call or prepayment penalties. September 30, 2024 December 31, 2023 Amortized Fair Value Amortized Fair Value Available-for-sale securities Within one year $ 85,543 $ 84,944 $ 105,389 $ 104,113 After one year through three years 128,649 123,743 184,975 174,827 After three years through five years 26,268 24,226 38,462 34,316 After five years through ten years 400,645 364,789 448,931 398,624 After ten years 1,111,299 1,020,587 949,873 839,806 $ 1,752,404 $ 1,618,289 $ 1,727,630 $ 1,551,686 Held-to-maturity securities After three years through five years 26,584 26,598 — — After five years through ten years 2,916,495 2,922,027 2,754,817 2,740,154 After ten years 3,670,714 3,677,828 3,133,981 3,112,022 $ 6,613,793 $ 6,626,453 $ 5,888,798 $ 5,852,176 The maturities of our available-for-sale (fair value) and held-to-maturity (amortized cost) securities at September 30, 2024, are as follows ( in thousands ): Within 1 1-5 Years 5-10 Years After 10 Total Available-for-sale securities (1) U.S. government agency securities $ — $ 2,298 $ — $ — $ 2,298 State and municipal securities — 2,351 — — 2,351 Mortgage-backed securities: Agency — 224 80,761 844,400 925,385 Commercial — — — 67,898 67,898 Non-agency — — 215 — 215 Corporate fixed income securities 84,944 143,096 258,777 — 486,817 Asset-backed securities — — 25,036 108,289 133,325 $ 84,944 $ 147,969 $ 364,789 $ 1,020,587 $ 1,618,289 Held-to-maturity securities Asset-backed securities $ — $ 26,584 $ 2,916,495 $ 3,670,714 $ 6,613,793 (1) Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis. At September 30, 2024 and December 31, 2023, securities of $ 897.5 million and $ 746.4 million, respectively, were pledged at the Federal Home Loan Bank as collateral for borrowings and letters of credit obtained to secure public deposits. At September 30, 2024 and December 31, 2023, securities of $ 1.8 billion and $ 1.3 billion, respectively, were pledged with the Federal Reserve discount window. The following table shows the gross unrealized losses and fair value of the Company’s investment securities with unrealized losses, aggregated by investment category and length of time the individual investment securities have been in continuous unrealized loss positions, at September 30, 2024 (in thousands) : Less than 12 months 12 months or more Total Gross Fair Value Gross Fair Value Gross Fair Value Available-for-sale securities U.S. government agency securities $ — $ — $ ( 111 ) $ 1,839 $ ( 111 ) $ 1,839 Mortgage-backed securities: Agency ( 281 ) 12,388 ( 92,894 ) 682,765 ( 93,175 ) 695,153 Commercial — — ( 1,761 ) 67,898 ( 1,761 ) 67,898 Non-agency — — ( 9 ) 215 ( 9 ) 215 Corporate fixed income securities — — ( 39,486 ) 486,817 ( 39,486 ) 486,817 Asset-backed securities ( 17 ) 8,250 ( 843 ) 93,001 ( 860 ) 101,251 $ ( 298 ) $ 20,638 $ ( 135,104 ) $ 1,332,535 $ ( 135,402 ) $ 1,353,173 At September 30, 2024, the amortized cost of 243 securities classified as available for sale exceeded their fair value by $ 135.4 million, of which $ 135.1 million related to investment securities that had been in a loss position for 12 months or longer. The total fair value of these investments at September 30, 2024, was $ 1.4 billion, which was 83.6 % of our available-for-sale portfolio. Credit Quality Indicators The Company uses Moody credit ratings as the primary credit quality indicator for its held-to-maturity debt securities. Each security is evaluated at least quarterly. The indicators represent the rating for debt securities, as of the date presented, based on the most recent assessment performed. The following table shows the amortized cost of our held-to-maturity securities by credit quality indicator at September 30, 2024 (in thousands) : AAA AA C NR Total Held-to-maturity securities Asset-backed securities $ 2,697,543 $ 3,871,408 $ 842 $ 44,000 $ 6,613,793

Bank Loans

Bank Loans	9 Months Ended
	Sep. 30, 2024
Receivables [Abstract]
Bank Loans	NOTE 7 – Bank Loans Our loan portfolio consists primarily of the following segments: Real Estate. Real estate loans include residential real estate non-conforming loans, residential real estate conforming loans, commercial real estate, and home equity lines of credit. The allowance methodology related to real estate loans considers several factors, including, but not limited to, loan-to-value ratio, FICO score, home price index, delinquency status, credit limits, and utilization rates. Commercial and industrial (C&I). C&I loans primarily include commercial and industrial lending used for general corporate purposes, working capital and liquidity, and “event-driven.” “Event-driven” loans support client merger, acquisition or recapitalization activities. C&I lending is structured as revolving lines of credit, letter of credit facilities, term loans and bridge loans. Risk factors considered in determining the allowance for corporate loans include the borrower’s financial strength, seniority of the loan, collateral type, leverage, volatility of collateral value, debt cushion, and covenants. Fund banking. Fund banking loans primarily include capital call lines of credit, also known as subscription lines of credit. These credit facilities are used by closed-end private investment funds (“Fund”) that have raised capital commitments from limited partners to effectively manage the Fund’s cash and bridge timing between the Fund’s investments and capital calls. The lines of credit are collateralized by a pledge of the limited partner’s contractually callable capital and the general partner’s right to call such capital as permitted in the Fund’s partnership agreement. Securities-based loans. Securities-based loans allow clients to borrow money against the value of qualifying securities for any suitable purpose other than purchasing, trading, or carrying securities or refinancing margin debt. The majority of consumer loans are structured as revolving lines of credit and letter of credit facilities and are primarily offered through Stifel’s Pledged Asset (“SPA”) program. The allowance methodology for securities-based lending considers the collateral type underlying the loan, including the liquidity and trading volume of the collateral, position concentration and other borrower specific factors such as personal guarantees. Construction and land. Short-term loans used to finance the development of commercial real estate projects. Other. Other loans include consumer and credit card lending. The following table presents the balance and associated percentage of each major loan category in our bank loan portfolio at September 30, 2024 and December 31, 2023 (in thousands, except percentages) : September 30, 2024 December 31, 2023 Balance Percent Balance Percent Residential real estate $ 8,406,932 41.3 % $ 8,047,647 41.4 % Commercial and industrial 3,896,824 19.1 3,566,987 18.3 Fund banking 3,762,960 18.5 3,633,126 18.7 Securities-based loans 2,273,246 11.2 2,306,455 11.9 Construction and land 1,219,787 6.0 1,034,370 5.3 Commercial real estate 565,686 2.8 660,631 3.4 Home equity lines of credit 170,732 0.8 136,270 0.7 Other 53,414 0.3 55,981 0.3 Gross bank loans 20,349,581 100.0 % 19,441,467 100.0 % Loans in process/(unapplied loan payments), net ( 38,825 ) 1,108 Unamortized loan fees, net ( 5,720 ) ( 8,478 ) Allowance for loan losses ( 137,350 ) ( 128,292 ) Loans held for investment, net $ 20,167,686 $ 19,305,805 At September 30, 2024 and December 31, 2023, Stifel Bancorp had loans outstanding to its executive officers and directors and executive officers and directors of certain affiliated entities in the amount of $ 41.8 million and $ 46.0 million, respectively. At September 30, 2024 and December 31, 2023, we had loans held for sale of $ 465.7 million and $ 424.0 million, respectively. For the three months ended September 30, 2024 and 2023, we recognized losses, included in other income in the accompanying consolidated statements of operations, of $ 0.1 million and $ 0.2 million, respectively, from the sale of originated loans, net of fees and costs. For the nine months ended September 30, 2024 and 2023, we recognized losses, included in other income in the accompanying consolidated statements of operations, of $ 3.0 million and $ 2.8 million, respectively, from the sale of originated loans, net of fees and costs. At September 30, 2024 and December 31, 2023, loans, primarily consisting of residential and commercial real estate loans of $ 7.8 billion and $ 7.4 billion, respectively, were pledged at the Federal Home Loan Bank as collateral for borrowings. At September 30, 2024, loans of $ 2.3 billion were pledged with the Federal Reserve discount window. Accrued interest receivable for loans and loans held for sale at September 30, 2024 and December 21, 2023 was $ 100.9 million and $ 94.0 million, respectively, and is reported in other assets on the consolidated statement of financial condition. The following tables detail activity in the allowance for loan losses by portfolio segment for the three and nine months ended September 30, 2024 (in thousands) . Three Months Ended September 30, 2024 Beginning Provision Charge-offs Recoveries Ending Commercial and industrial $ 76,354 $ 10,321 $ ( 6,813 ) $ — $ 79,862 Construction and land 16,379 3,396 — — 19,775 Commercial real estate 15,312 ( 2,997 ) — — 12,315 Fund banking 12,179 ( 1,642 ) — — 10,537 Residential real estate 11,242 28 — — 11,270 Securities-based loans 2,813 40 — — 2,853 Home equity lines of credit 362 ( 143 ) — — 219 Other 473 205 ( 159 ) — 519 $ 135,114 $ 9,208 $ ( 6,972 ) $ — $ 137,350 Nine Months Ended September 30, 2024 Beginning Provision Charge-offs Recoveries Ending Commercial and industrial $ 67,077 $ 22,476 $ ( 10,624 ) $ 933 $ 79,862 Construction and land 11,817 7,958 — — 19,775 Commercial real estate 21,386 ( 7,381 ) ( 1,690 ) — 12,315 Fund banking 10,173 364 — — 10,537 Residential real estate 13,855 ( 2,585 ) — — 11,270 Securities-based loans 3,035 ( 182 ) — — 2,853 Home equity lines of credit 371 ( 152 ) — — 219 Other 578 100 ( 159 ) — 519 $ 128,292 $ 20,598 $ ( 12,473 ) $ 933 $ 137,350 During the three months ended September 30, 2024, we recorded $ 5.3 million of net credit loss reserves, including $ 9.2 million of the reserve for credit losses for funded loans, partially offset by a release of $ 3.9 million of the allowance for unfunded lending commitments. During the nine months ended September 30, 2024, we recorded $ 13.5 million of net credit loss reserves, including $ 20.6 million of the reserve for credit losses for funded loans and $ 0.3 million related to employee retention awards, partially offset by a release of $ 7.4 million of the allowance for unfunded lending commitments. During the three months ended September 30, 2023, we recorded $ 10.0 million of net credit loss reserves, including $ 13.4 million of the reserve for credit losses for funded loans, partially offset by a release of $ 3.4 million of the allowance for unfunded lending commitments. During the nine months ended September 30, 2023, we recorded $ 22.7 million of net credit loss reserves, including $ 24.9 million of the reserve for credit losses for funded loans, partially offset by a release of $ 2.2 million of the allowance for unfunded lending commitments. The provision for unfunded lending agreements is included in the provision for credit losses on the consolidated statement of operations. The expected credit losses for unfunded lending commitments, including standby letters of credit and binding unfunded loan commitments, are reported on the consolidated statement of financial condition in accounts payable and accrued expenses. The following tables detail activity in the allowance for loan losses by portfolio segment for the three and nine months ended September 30, 2023 (in thousands) . Three Months Ended September 30, 2023 Beginning Provision Charge-offs Recoveries Ending Commercial and industrial $ 66,377 $ 8,584 $ ( 302 ) $ — $ 74,659 Commercial real estate 13,429 6,437 — — 19,866 Residential real estate 14,413 194 — — 14,607 Fund banking 12,178 ( 660 ) — — 11,518 Construction and land 12,645 ( 1,145 ) — — 11,500 Securities-based loans 3,086 ( 68 ) — — 3,018 Home equity lines of credit 168 27 — — 195 Other 385 49 — — 434 $ 122,681 $ 13,418 $ ( 302 ) $ — $ 135,797 Nine Months Ended September 30, 2023 Beginning Provision Charge-offs Recoveries Ending Commercial and industrial $ 54,143 $ 21,283 $ ( 920 ) $ 153 $ 74,659 Commercial real estate 12,897 6,969 — — 19,866 Residential real estate 20,441 ( 5,834 ) — — 14,607 Fund banking 11,711 ( 193 ) — — 11,518 Construction and land 8,568 2,932 — — 11,500 Securities-based loans 3,157 ( 139 ) — — 3,018 Home equity lines of credit 364 ( 169 ) — — 195 Other 372 62 — — 434 $ 111,653 $ 24,911 $ ( 920 ) $ 153 $ 135,797 The following tables present the aging of the recorded investment in past due loans at September 30, 2024 and December 31, 2023 by portfolio segment (in thousands) : As of September 30, 2024 30 – 89 Days 90 or More Total Past Current Total Residential real estate $ 12,597 $ 3,226 $ 15,823 $ 8,391,109 $ 8,406,932 Commercial and industrial 60,901 — 60,901 3,835,923 3,896,824 Fund banking — — — 3,762,960 3,762,960 Securities-based loans — 850 850 2,272,396 2,273,246 Construction and land — — — 1,219,787 1,219,787 Commercial real estate — — — 565,686 565,686 Home equity lines of credit 305 568 873 169,859 170,732 Other 58 51 109 53,305 53,414 Total $ 73,861 $ 4,695 $ 78,556 $ 20,271,025 $ 20,349,581 As of September 30, 2024* Nonaccrual Nonperforming loans with no allowance Total Commercial and industrial $ 43,742 $ 13,833 $ 57,575 Construction and land 48,349 — 48,349 Commercial real estate 34,813 — 34,813 Residential real estate 1,251 1,705 2,956 Home equity lines of credit 378 — 378 Other 51 — 51 Total $ 128,584 $ 15,538 $ 144,122 * There were no loans past due 90 days and still accruing interest at September 30, 2024. As of December 31, 2023 30 – 89 Days 90 or More Total Current Total Residential real estate $ 15,312 $ 3,945 $ 19,257 $ 8,028,390 $ 8,047,647 Fund banking — — — 3,633,126 3,633,126 Commercial and industrial — 2,022 2,022 3,564,965 3,566,987 Securities-based loans — 3 3 2,306,452 2,306,455 Construction and land — — — 1,034,370 1,034,370 Commercial real estate — — — 660,631 660,631 Home equity lines of credit 570 87 657 135,613 136,270 Other 45 59 104 55,877 55,981 Total $ 15,927 $ 6,116 $ 22,043 $ 19,419,424 $ 19,441,467 As of December 31, 2023* Nonaccrual Nonperforming loans with no allowance Total Commercial real estate $ 39,195 $ — $ 39,195 Residential real estate 3,090 1,000 4,090 Commercial and industrial — 2,022 2,022 Securities-based loans — 3 3 Home equity lines of credit 22 65 87 Other 59 — 59 Total $ 42,366 $ 3,090 $ 45,456 * There were no loans past due 90 days and still accruing interest at December 31, 2023. In the normal course of business, we may modify the original terms of a loan agreement. In certain circumstances, we may agree to modify the original terms of a loan agreement to a borrower experiencing financial difficulty, which may include a borrower in default, financial distress, bankruptcy or other circumstances. Modifications of loans to borrowers experiencing financial difficulty are designed to reduce our loss exposure while providing borrowers with an opportunity to work through financial difficulties, often to avoid foreclosure or bankruptcy. Loan modifications to borrowers experiencing financial difficulty typically involve principal forgiveness, an interest rate reduction, an other-than-insignificant payment delay (i.e., payment or maturity forbearance greater than six months), or a term extension, or any combination thereof. Modified loans to borrowers experiencing financial difficulty are subject to our nonaccrual policies. Loans to borrowers experiencing financial difficulty which were modified during the three and nine months ended September 30, 2024 and 2023 were not significant. The gross interest income related to impaired loans, which would have been recorded, had these loans been current in accordance with their original terms, and the interest income recognized on these loans during the three and nine months ended September 30, 2024 and 2023, were insignificant to the consolidated financial statements. As of December 31, 2023 Pass Special Mention Substandard Doubtful Total Residential real estate $ 8,042,246 $ 1,456 $ 3,945 $ — $ 8,047,647 Fund banking 3,633,126 — — — 3,633,126 Commercial and industrial 3,294,891 89,302 180,772 2,022 3,566,987 Securities-based loans 2,306,452 — — 3 2,306,455 Construction and land 963,083 71,287 — — 1,034,370 Commercial real estate 512,171 49,264 99,196 — 660,631 Home equity lines of credit 135,806 377 87 — 136,270 Other 55,922 — — 59 55,981 Total $ 18,943,697 $ 211,686 $ 284,000 $ 2,084 $ 19,441,467 Term Loans Amortized Cost Basis by Origination Year – September 30, 2024 2024 2023 2022 2021 2020 Prior Revolving Loans Amortized Cost Basis Total Residential real estate: Pass $ 872,201 $ 1,105,958 $ 2,505,122 $ 2,192,501 $ 859,573 $ 866,345 $ — $ 8,401,700 Special Mention — — 574 1,432 — — — 2,006 Substandard — — 2,355 88 — 783 — 3,226 Doubtful — — — — — — — — $ 872,201 $ 1,105,958 $ 2,508,051 $ 2,194,021 $ 859,573 $ 867,128 $ — $ 8,406,932 Commercial and industrial: Pass $ 646,852 $ 585,845 $ 799,469 $ 652,190 $ 65,669 $ 123,823 $ 652,777 $ 3,526,625 Special Mention 1,421 10,148 29,331 27,867 14,258 — 57,320 140,345 Substandard — — 55,406 49,249 — — 80,687 185,342 Doubtful — — 5,132 27,190 — 3,254 8,936 44,512 $ 648,273 $ 595,993 $ 889,338 $ 756,496 $ 79,927 $ 127,077 $ 799,720 $ 3,896,824 Fund banking: Pass $ 1,200 $ 790 $ 41,544 $ — $ 334 $ — $ 3,719,092 $ 3,762,960 Special Mention — — — — — — — — Substandard — — — — — — — — Doubtful — — — — — — — — $ 1,200 $ 790 $ 41,544 $ — $ 334 $ — $ 3,719,092 $ 3,762,960 Securities-based loans: Pass $ 8,115 $ 14,491 $ 2,147 $ 2,123 $ 51,807 $ 36,572 $ 2,157,991 $ 2,273,246 Special Mention — — — — — — — — Substandard — — — — — — — — Doubtful — — — — — — — — $ 8,115 $ 14,491 $ 2,147 $ 2,123 $ 51,807 $ 36,572 $ 2,157,991 $ 2,273,246 Construction and land: Pass $ 4,224 $ 208,373 $ 596,763 $ 197,077 $ 151,861 $ 13,140 $ — $ 1,171,438 Special Mention — — — — — — — — Substandard — — — — — — — — Doubtful — — — — — 48,349 — 48,349 $ 4,224 $ 208,373 $ 596,763 $ 197,077 $ 151,861 $ 61,489 $ — $ 1,219,787 Commercial real estate: Pass $ — $ 33,736 $ 260,279 $ 64,881 $ 29,991 $ 73,556 $ — $ 462,443 Special Mention — — 11,980 — — — — 11,980 Substandard — — 56,450 — — — — 56,450 Doubtful — — — 34,813 — — — 34,813 $ — $ 33,736 $ 328,709 $ 99,694 $ 29,991 $ 73,556 $ — $ 565,686 Home equity lines of credit: Pass $ — $ — $ — $ — $ — $ — $ 170,070 $ 170,070 Special Mention — — — — — — 94 94 Substandard — — — — — — 568 568 Doubtful — — — — — — — — $ — $ — $ — $ — $ — $ — $ 170,732 $ 170,732 Other: Pass $ 3,492 $ — $ 3,991 $ — $ 10,000 $ 24,954 $ 10,901 $ 53,338 Special Mention — — — — — — 76 76 Substandard — — — — — — — — Doubtful — — — — — — — — $ 3,492 $ — $ 3,991 $ — $ 10,000 $ 24,954 $ 10,977 $ 53,414

Goodwill and Intangible Assets

Goodwill and Intangible Assets	9 Months Ended
	Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	NOTE 8 – Goodwill and Intangible Assets The carrying amount of goodwill and intangible assets attributable to each of our reporting segments is presented in the following table (in thousands) : December 31, Adjustments Write-off September 30, Goodwill Global Wealth Management $ 335,009 $ — $ — $ 335,009 Institutional Group 1,053,234 5,848 — 1,059,082 $ 1,388,243 $ 5,848 $ — $ 1,394,091 December 31, Adjustments Amortization September 30, Intangible assets Global Wealth Management $ 28,687 $ — $ ( 3,305 ) $ 25,382 Institutional Group 104,592 1,598 ( 14,405 ) 91,785 $ 133,279 $ 1,598 $ ( 17,710 ) $ 117,167 The adjustments to goodwill and intangible assets during the nine months ended September 30, 2024 are primarily attributable to the acquisition of Finance 500, Inc. (“Finance 500”) and CB Resource, Inc. (“CBR”). On August 1, 2024, the Company acquired Finance 500 and CBR (collectively, the “acquired business”), which operate as strategic partners under common ownership. Finance 500 is a brokerage and investment services provider focused on underwriting FDIC-insured Certificates of Deposits and fixed income securities trading. CBR integrates ERM, strategic and capital plan solutions, and industry analytics through its fully integrated tech-enabled platform. Consideration for this acquisition consisted of cash from operations. The acquisition was accounted for under the acquisition method of accounting in accordance with ASC 805, “Business Combinations.” Accordingly, goodwill was measured as the excess of the acquisition-date fair value of the consideration transferred over the amount of acquisition-date identifiable assets acquired net of assumed liabilities. We recorded $ 7.5 million of goodwill and intangible assets in the consolidated statement of financial condition, which has been allocated to our company’s Institutional Group segment. The allocation of the purchase price of the acquired business is preliminary and will be finalized upon completion of the analysis of the fair values of the net assets of the acquired business as of the acquisition date and the identified intangible assets. The final goodwill recorded on the consolidated statement of financial condition may differ from that reflected herein as a result of future measurement period adjustments and the recording of identified intangible assets. The goodwill represents the value expected from the synergies created through the operational enhancement benefits that will result from the integration of the acquired business, its employees, and customer base. Amortizable intangible assets consist of acquired customer relationships, trade names, acquired technology, non-compete agreements, investment banking backlog, and core deposits that are amortized over their contractual or determined useful lives. Intangible assets as of September 30, 2024 and December 31, 2023 were as follows (in thousands) : September 30, 2024 December 31, 2023 Gross Accumulated Amortization Gross Accumulated Amortization Customer relationships $ 229,320 $ 133,214 $ 227,486 $ 122,971 Trade names 30,359 23,477 30,359 22,366 Acquired technology 18,314 7,635 18,314 3,447 Non-compete agreements 10,700 9,314 10,700 8,421 Investment banking backlog 8,913 6,935 8,913 5,758 Core deposits 8,615 8,479 8,615 8,145 $ 306,221 $ 189,054 $ 304,387 $ 171,108 Amortization expense related to intangible assets was $ 5.9 million and $ 4.8 million for the three months ended September 30, 2024 and 2023, respectively. Amortization expense related to intangible assets was $ 17.7 million and $ 13.9 million for the nine months ended September 30, 2024 and 2023, respectively. Amortization expense is included in other operating expenses in the consolidated statements of operations. The weighted-average remaining lives of the following intangible assets at September 30, 2024, are: customer relationships, 9.6 years; trade names, 6.6 years; non-compete agreements, 4.1 years; acquired technology, 1.8 years; core deposits, 0.7 years; and investment banking backlog, 4.2 years. We have an intangible asset that is not subject to amortization and is, therefore, not included in the table below. As of September 30, 2024, we expect amortization expense in future periods to be as follows (in thousands) : Fiscal year Remainder of 2024 $ 5,558 2025 21,109 2026 17,005 2027 13,308 2028 12,350 Thereafter 45,719 $ 115,049

Borrowings and Federal Home Loa

Borrowings and Federal Home Loan Bank Advances	9 Months Ended
	Sep. 30, 2024
Short-Term Debt, Other Disclosure [Abstract]
Borrowings and Federal Home Loan Bank Advances	NOTE 9 – Borrowings and Federal Home Loan Bank Advances Our short-term financing is generally obtained through short-term bank line financing on an uncommitted, secured basis, securities lending arrangements, repurchase agreements, advances from the Federal Home Loan Bank, term loans, and committed bank line financing on an unsecured basis. We borrow from various banks on a demand basis with company-owned and customer securities pledged as collateral. The value of customer-owned securities used as collateral is not reflected in the consolidated statements of financial condition. We also have an unsecured, committed bank line available. Our uncommitted secured lines of credit at September 30, 2024, totaled $ 880.0 million with four banks and are dependent on having appropriate collateral, as determined by the bank agreements, to secure an advance under the line. The availability of our uncommitted lines is subject to approval by the individual banks each time an advance is requested and may be denied. Our peak daily borrowing on our uncommitted secured lines was $ 70.0 million during the nine months ended September 30, 2024. There are no compensating balance requirements under these arrangements. Any borrowings on secured lines of credit are generally utilized to finance certain fixed income securities. At September 30, 2024, we had no outstanding balances on our uncommitted secured lines of credit. The Federal Home Loan advances are floating-rate advances. The weighted average interest rates on these advances during nine months ended September 30, 2024 was 2.15 %. The advances are secured by Stifel Bancorp’s residential mortgage loan portfolio and investment portfolio. The interest rates reset on a daily basis. Stifel Bancorp has the option to prepay these advances without penalty on the interest reset date. At September 30, 2024, there were no Federal Home Loan advances. On September 27, 2023, the Company and Stifel (the “Borrowers”) entered into an unsecured credit agreement with a syndicate of lenders led by Bank of America, N.A., as administrative agent (the “Credit Agreement”). Concurrently with, and conditional upon, the effectiveness of the Credit Agreement, all of the commitments under the Borrowers’ existing $ 500.0 million unsecured revolving credit facility agreement were terminated. The Credit Agreement has a maturity date of September 27, 2028 , and provides for a committed unsecured borrowing facility for maximum aggregate borrowings of up to $ 750.0 million, depending on the amount of outstanding borrowings of the Borrowers from time to time during the duration of the Credit Agreement. The interest rates on borrowings under the Credit Agreement are variable and based on the Secured Overnight Financing Rate. The Borrowers can draw upon this line as long as certain restrictive covenants are maintained. Under the Credit Agreement, the Borrowers are required to maintain compliance with a minimum consolidated tangible net worth covenant, as defined, and a maximum consolidated total capitalization ratio covenant, as defined. In addition, Stifel is required to maintain compliance with a minimum regulatory excess net capital percentage covenant, as defined, and our bank subsidiaries are required to maintain their status as well-capitalized, as defined. Upon the occurrence and during the continuation of an event of default, the Company’s obligations under the Credit Agreement may be accelerated and the lending commitments thereunder terminated. The Credit Agreement contains customary events of default, including, without limitation, payment defaults, breaches of representations and warranties, covenant defaults, cross-defaults to similar obligations, certain events of bankruptcy and insolvency, change of control, and judgment defaults. At September 30, 2024, we had no advances on the Credit Facility and were in compliance with all covenants and currently do not expect any covenant violations.

Senior Notes

Senior Notes	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Senior Notes	NOTE 10 – Senior Notes The following table summarizes our senior notes as of September 30, 2024 and December 31, 2023 (in thousands) : September 30, December 31, 4.25 % senior notes, due 2024 (1) $ — $ 500,000 4.00 % senior notes, due 2030 (2) 400,000 400,000 5.20 % senior notes, due 2047 (3) 225,000 225,000 625,000 1,125,000 Debt issuance costs, net ( 8,588 ) ( 9,371 ) Senior notes, net $ 616,412 $ 1,115,629 (1) In July 2014, we sold in a registered underwritten public offering, $ 300.0 million in aggregate principal amount of 4.25 % senior notes due July 2024 . Interest on these senior notes is payable semi-annually in arrears. We may redeem the notes in whole or in part, at our option, at a redemption price equal to 100 % of their principal amount, plus a “make-whole” premium and accrued and unpaid interest, if any, to the date of redemption. In July 2016, we issued an additional $ 200.0 million in aggregate principal amount of 4.25% senior notes due July 2024. On July 18, 2024, the Company’s 4.25 % Senior Notes matured resulting in the retirement of the $ 500.0 million outstanding balance. (2) In May 2020, we sold in a registered underwritten public offering, $ 400.0 million in aggregate principal amount of 4.00 % senior notes due May 2030 . Interest on these senior notes is payable semi-annually in arrears. We may redeem the notes in whole or in part, at our option, at a redemption price equal to the greater of a) 100 % of their principal amount, or b) discounted present value at Treasury rate plus 50 basis points prior to February 15, 2030, and on or after February 15, 2030, at 100 % of their principal amount, and accrued and unpaid interest, if any, to the date of redemption. (3) In October 2017, we completed the pricing of a registered underwritten public offering of $ 200.0 million in aggregate principal amount of 5.20 % senior notes due October 2047 . Interest on the senior notes is payable quarterly in arrears. We may redeem some or all of the senior notes at any time at a redemption price equal to 100 % of the principal amount of the notes being redeemed plus accrued interest thereon to the redemption date. On October 27, 2017, we completed the sale of an additional $ 25.0 million aggregate principal amount of Notes pursuant to the over-allotment option. Our senior notes mature as follows, based upon contractual terms (in thousands) : 2024 $ — 2025 — 2026 — 2027 — 2028 — Thereafter 625,000 $ 625,000

Bank Deposits

Bank Deposits	9 Months Ended
	Sep. 30, 2024
Deposits Liabilities, Balance Sheet, Reported Amounts [Abstract]
Bank Deposits	NOTE 11 – Bank Deposits Deposits consist of interest-bearing demand deposits (primarily money market and savings accounts), non-interest bearing demand deposits, and certificates of deposit. Deposits at September 30, 2024 and December 31, 2023 were as follows (in thousands) : September 30, December 31, Demand deposits (interest-bearing) $ 27,539,904 $ 27,111,072 Demand deposits (non-interest-bearing) 309,982 223,505 Certificates of deposit 270,632 2 $ 28,120,518 $ 27,334,579 The weighted-average interest rate on deposits was 3.32 % and 2.66 % at September 30, 2024 and December 31, 2023, respectively. Certificates of deposit, of $ 0.1 million and greater, due within one year at September 30, 2024 was $ 270.6 million. At September 30, 2024 and December 31, 2023, bank deposits include related party deposits, primarily interest-bearing and time deposits of executive officers, directors, and their affiliates were $ 2.4 million and $ 9.0 million, respectively. Brokerage customers’ deposits were $ 26.0 billion and $ 24.1 billion, respectively.

Derivative Instruments and Hedg

Derivative Instruments and Hedging Activities	9 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities	NOTE 12 – Derivative Instruments and Hedging Activities We manage the interest rate risk associated with our derivative transactions with customers by entering into offsetting positions with other derivative dealers, resulting in a substantially “matched book” portfolio. These interest rate contracts are not designated as hedging instruments for accounting purposes. Credit risk associated with its derivative transactions is managed through a variety of measures, including initial and ongoing periodic underwriting of its counterparties’ creditworthiness, establishment of customer credit limits, and collateral maintenance requirements for customer exposures that exceed certain preset thresholds. Our policy is not to offset fair value amounts recognized for derivative instruments and fair value amounts recognized for the right to reclaim cash collateral or the obligation to return cash collateral arising from derivative instruments recognized at fair value executed with the same counterparty under master netting arrangements. The following tables provide the notional values and fair values of our derivative instruments as of September 30, 2024 and December 31, 2023 (in thousands) : September 30, 2024 Derivative Assets Derivative Liabilities Notional value Interest rate contracts $ 95,327 $ 95,314 $ 2,195,110 December 31, 2023 Derivative Assets Derivative Liabilities Notional value Interest rate contracts $ 118,668 $ 118,651 $ 1,994,919 The scheduled maturities of our derivative instruments as of September 30, 2024, are as follows (in thousands) : Within one year $ 219,563 One to three years 780,905 Three to five years 456,562 Five to ten years 662,976 Ten to fifteen years 58,020 Fifteen years and thereafter 17,084 $ 2,195,110 The following table presents the distribution of customer interest rate derivative transactions, by derivative product, as of September 30, 2024 and December 31, 2023 (in thousands) : September 30, December 31, Swaps $ 2,025,110 $ 1,824,919 Written options 170,000 170,000 $ 2,195,110 $ 1,994,919

Disclosures About Offsetting As

Disclosures About Offsetting Assets and Liabilities	9 Months Ended
	Sep. 30, 2024
Offsetting [Abstract]
Disclosures About Offsetting Assets and Liabilities	NOTE 13 – Disclosures About Offsetting Assets and Liabilities The following table provides information about financial assets and derivative assets that are subject to offset as of September 30, 2024 and December 31, 2023 (in thousands) : As of September 30, 2024 Securities borrowing (1) Reverse repurchase agreements (2) Interest rate contracts (3) Total Gross amounts of recognized assets $ 252,037 $ 665,067 $ 95,327 $ 1,012,431 Gross amounts offset in the statement of financial condition — — — — Net amounts presented in the statement of financial condition 252,037 665,067 95,327 1,012,431 Gross amounts not offset in the statement of financial condition: Amounts available for offset ( 83,345 ) ( 4,079 ) ( 24,945 ) ( 112,369 ) Available collateral ( 158,275 ) ( 657,485 ) ( 63,929 ) ( 879,689 ) Net amount $ 10,417 $ 3,503 $ 6,453 $ 20,373 As of December 31, 2023 Securities borrowing (1) Reverse repurchase agreements (2) Interest rate contracts (3) Total Gross amounts of recognized assets $ 215,368 $ 349,849 $ 118,668 $ 683,885 Gross amounts offset in the statement of financial condition — — — — Net amounts presented in the statement of financial condition 215,368 349,849 118,668 683,885 Gross amounts not offset in the statement of financial condition: Amounts available for offset ( 23,691 ) ( 23,441 ) ( 14,556 ) ( 61,688 ) Available collateral ( 184,689 ) ( 325,627 ) ( 82,607 ) ( 592,923 ) Net amount $ 6,988 $ 781 $ 21,505 $ 29,274 (1) Securities borrowing transactions are included in receivables from brokers, dealers, and clearing organizations on the consolidated statements of financial condition. See Note 3 in the notes to consolidated financial statements for additional information on receivables from brokers, dealers, and clearing organizations. (2) Available collateral includes securities received 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 received as collateral was $ 661.5 million and $ 350.2 million at September 30, 2024 and December 31, 2023, respectively. (3) Available collateral includes securities received 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 received as collateral was $ 73.5 million and $ 84.1 million at September 30, 2024 and December 31, 2023, respectively. The following table provides information about financial liabilities and derivative liabilities that are subject to offset as of September 30, 2024 and December 31, 2023 (in thousands) : As of September 30, 2024 Securities lending (4) Repurchase agreements (5) Interest rate contracts (6) Total Gross amounts of recognized liabilities $ ( 152,255 ) $ ( 657,984 ) $ ( 95,314 ) $ ( 905,553 ) Gross amounts offset in the statement of financial condition — — — — Net amounts presented in the statement of financial condition ( 152,255 ) ( 657,984 ) ( 95,314 ) ( 905,553 ) Gross amounts not offset in the statement of financial condition: Amounts available for offset 83,345 4,079 24,945 112,369 Collateral pledged 68,910 653,905 15,453 738,268 Net amount $ — $ — $ ( 54,916 ) $ ( 54,916 ) As of December 31, 2023 Securities lending (4) Repurchase agreements (5) Interest rate contracts (6) Total Gross amounts of recognized liabilities $ ( 135,693 ) $ ( 417,644 ) $ ( 118,651 ) $ ( 671,988 ) Gross amounts offset in the statement of financial condition — — — — Net amounts presented in the statement of financial condition ( 135,693 ) ( 417,644 ) ( 118,651 ) ( 671,988 ) Gross amounts not offset in the statement of financial condition: Amounts available for offset 23,691 23,441 14,556 61,688 Collateral pledged 111,981 394,203 22,661 528,845 Net amount $ ( 21 ) $ — $ ( 81,434 ) $ ( 81,455 ) (4) Securities lending transactions are included in payables to brokers, dealers, and clearing organizations on the consolidated statements of financial condition. See Note 3 in the notes to consolidated financial statements for additional information on payables to brokers, dealers, and clearing organizations. (5) Collateral pledged includes the fair value of securities pledged to the counterparty. These securities are included on the consolidated statements of financial condition unless we default. Collateral pledged by our company to the counterparty includes U.S. government agency securities, U.S. government securities, and corporate fixed income securities with market values of $ 689.0 million and $ 425.9 million at September 30, 2024 and December 31, 2023, respectively. (6) Collateral pledged includes the fair value of securities pledged to the counterparty. The fair value of securities pledged as collateral was $ 21.2 million and $ 19.1 million at September 30, 2024 and December 31, 2023, respectively.

Commitments, Guarantees, and Co

Commitments, Guarantees, and Contingencies	9 Months Ended
	Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments, Guarantees, and Contingencies	NOTE 14 – Commitments, Guarantees, and Contingencies Broker-Dealer Commitments and Guarantees In the normal course of business, we enter into underwriting commitments. Settlement of transactions relating to such underwriting commitments, which were open at September 30, 2024, had no material effect on the consolidated financial statements. As a part of our fixed income public finance operations, we enter into forward commitments to purchase agency mortgage-backed securities. In order to hedge the market interest rate risk to which we would otherwise be exposed between the date of the commitment and date of sale of the mortgage-backed securities, we enter into to be announced (“TBA”) security contracts with investors for generic mortgage-backed securities at specific rates and prices to be delivered on settlement dates in the future. We may be subject to loss if the timing of, or the actual amount of, the mortgage-backed security differs significantly from the term and notional amount of the TBA security contract to which we entered. These TBA securities and related purchase commitment are accounted for at fair value. As of September 30, 2024, the fair value of the TBA securities and the estimated fair value of the purchase commitments were $ 115.0 million. We also provide guarantees to securities clearinghouses and exchanges under their standard membership agreement, which requires members to guarantee the performance of other members. Under the agreement, if another member becomes unable to satisfy its obligations to the clearinghouse, other members would be required to meet shortfalls. Our liability under these agreements is not quantifiable and may exceed the cash and securities we have posted as collateral. However, the potential requirement for us to make payments under these arrangements is considered remote. Accordingly, no liability has been recognized for these arrangements. Other Commitments In the ordinary course of business, Stifel Bancorp has commitments to extend credit in the form of commitments to originate loans, standby letters of credit, and lines of credit. See Note 21 in the notes to consolidated financial statements for further details. Concentration of Credit Risk We provide investment, capital-raising, and related services to a diverse group of domestic customers, including governments, corporations, and institutional and individual investors. Our exposure to credit risk associated with the non-performance of customers in fulfilling their contractual obligations pursuant to securities transactions can be directly impacted by volatile securities markets, credit markets, and regulatory changes. This exposure is measured on an individual customer basis and on a group basis for customers that share similar attributes. To reduce the potential for risk concentrations, counterparty credit limits have been implemented for certain products and are continually monitored in light of changing customer and market conditions. As of September 30, 2024, we did not have significant concentrations of credit risk with any one customer or counterparty, or any group of customers or counterparties.

Legal Proceedings

Legal Proceedings	9 Months Ended
	Sep. 30, 2024
Loss Contingency, Information about Litigation Matters [Abstract]
Legal Proceedings	NOTE 15 – Legal Proceedings Our company and its subsidiaries are named in and subject to various proceedings and claims arising primarily from our securities business activities, including lawsuits, arbitration claims, class actions, and regulatory matters. Some of these claims seek substantial compensatory, punitive, or indeterminate damages. Our company and its subsidiaries are also involved in other reviews, investigations, and proceedings by governmental and self-regulatory organizations regarding our business, which may result in adverse judgments, settlements, fines, penalties, injunctions, and other relief. We are contesting allegations in these claims, and we believe that there are meritorious defenses in each of these lawsuits, arbitrations, and regulatory investigations. In view of the number and diversity of claims against our company, the number of jurisdictions in which litigation is pending, and the inherent difficulty of predicting the outcome of litigation and other claims, we cannot state with certainty what the eventual outcome of pending litigation or other claims will be. We have accrued for potential losses that are probable and reasonably estimable that may result from pending and potential legal actions, investigations, and regulatory proceedings. In many cases, however, it is inherently difficult to determine whether any loss is probable or reasonably possible or to estimate the amount or range of any potential loss, particularly where proceedings may be in relatively early stages or where plaintiffs are seeking substantial or indeterminate damages. Matters frequently need to be more developed before a loss or range of loss can reasonably be estimated. In our opinion, based on currently available information, review with outside legal counsel, and consideration of amounts provided for in our consolidated financial statements with respect to these matters, including the matter described below, the ultimate resolution of these matters will not have a material adverse impact on our financial position and results of operations. However, resolution of one or more of these matters may have a material effect on the results of operations in any future period, depending upon the ultimate resolution of those matters and depending upon the level of income for such period. For matters where a liability has not been established and for which we believe a loss is reasonably possible, as well as for matters where an accrual has been recorded but for which an exposure to loss in excess of the amount accrued is reasonably possible, based on currently available information, we believe that such losses will not have a material effect on our consolidated financial statements. SEC and CFTC Investigation of Communications Recordkeeping The Company has been contacted by each of the SEC and the CFTC in connection with an investigation of the Company’s compliance with records preservation requirements for off-channel communications relating to the broker-dealer or investment adviser business activities of the Company using personally owned communications devices and/or messaging platforms that have not been approved by the Company. The Company entered into an agreement with the SEC to resolve the SEC’s investigation pursuant to the terms of a formal offer from the Company’s subsidiary, Stifel that was reflected in an Order entered by the SEC on September 24, 2024. The CFTC has provided the Company with a settlement offer, which the Company declined to accept. With respect to the ongoing CFTC investigation, the Company has established an accrual for potential losses that are probable and reasonably estimable, but at this time, based upon currently available information and review with outside counsel, the Company is not able to state with certainty that a settlement will be achieved or the ultimate resolution of the matter.

Regulatory Capital Requirements

Regulatory Capital Requirements	9 Months Ended
	Sep. 30, 2024
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Regulatory Capital Requirements	NOTE 16 – Regulatory Capital Requirements We operate in a highly regulated environment and are subject to capital requirements, which may limit distributions to our company from its subsidiaries. Distributions from our broker-dealer subsidiaries are subject to net capital rules. A broker-dealer that fails to comply with the SEC’s Uniform Net Capital Rule (Rule 15c3-1) may be subject to disciplinary actions by the SEC and self-regulatory organizations, such as FINRA, including censures, fines, suspension, or expulsion. Stifel has chosen to calculate its net capital under the alternative method, which prescribes that their net capital shall not be less than the greater of $ 1.0 million or two percent of aggregate debit balances (primarily receivables from customers) computed in accordance with the SEC’s Customer Protection Rule (Rule 15c3-3). Our other broker-dealer subsidiaries calculate their net capital under the aggregate indebtedness method, whereby their aggregate indebtedness may not be greater than fifteen times their net capital (as defined). At September 30, 2024, Stifel had net capital of $ 486.2 million, which was 41.0 % of aggregate debit items and $ 462.5 million in excess of its minimum required net capital. At September 30, 2024, all of our other broker-dealer subsidiaries’ net capital exceeded the minimum net capital required under the SEC rule. Our international subsidiary, SNEL, is subject to the regulatory supervision and requirements of the Financial Conduct Authority (“FCA”) in the United Kingdom. At September 30, 2024, our international subsidiary’s capital and reserves were in excess of the financial resources requirement under the rules of the FCA. Our Canadian subsidiary, SNC, is subject to the regulatory supervision and requirements of the Canadian Investment Regulatory Organization (“CIRO”). At September 30, 2024, SNC’s net capital and reserves were in excess of the financial resources requirement under the rules of the CIRO. Our company, as a bank holding company, Stifel Bank & Trust, Stifel Bank, Stifel Trust Company, N.A., and Stifel Trust Company, Delaware, N.A., (collectively, “banking subsidiaries”), are subject to various regulatory capital requirements administered by the Federal and state banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on our company’s and it’s banking subsidiaries’ financial results. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, our company and its banking subsidiaries must meet specific capital guidelines that involve quantitative measures of our assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. Our company’s and its banking subsidiaries’ capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. Under the Basel III rules, the quantity and quality of regulatory capital increased, a capital conservation buffer was established, selected changes were made to the calculation of risk-weighted assets, and a new ratio, common equity Tier 1 was introduced, all of which are applicable to both our company and its banking subsidiaries. Our company and its banking subsidiaries are required to maintain minimum amounts and ratios of Total and Tier 1 capital (as defined) to risk-weighted assets (as defined), Tier 1 capital to average assets (as defined), and under rules defined in Basel III, Common equity Tier 1 capital to risk-weighted assets. Our company and its banking subsidiaries each calculate these ratios in order to assess compliance with both regulatory requirements and their internal capital policies. At current capital levels, our company and its banking subsidiaries are each categorized as “well capitalized” under the regulatory framework for prompt corrective action. To be categorized as “well capitalized,” our company and its banking subsidiaries must maintain total risk-based, Tier 1 risk-based, and Tier 1 leverage ratios. The amounts and ratios for Stifel Financial Corp., Stifel Bank & Trust, and Stifel Bank as of September 30, 2024 are represented in the tables below (in thousands, except ratios). Actual For Capital To Be Well Capitalized Stifel Financial Corp. Amount Ratio Amount Ratio Amount Ratio Common equity tier 1 capital $ 3,474,276 15.0 % $ 1,043,246 4.5 % $ 1,506,911 6.5 % Tier 1 capital 4,159,276 17.9 % 1,390,994 6.0 % 1,854,659 8.0 % Total capital 4,377,743 18.9 % 1,854,659 8.0 % 2,318,324 10.0 % Tier 1 leverage 4,159,276 11.3 % 1,472,539 4.0 % 1,840,674 5.0 % Actual For Capital To Be Well Capitalized Stifel Bank & Trust Amount Ratio Amount Ratio Amount Ratio Common equity tier 1 capital $ 1,306,476 10.7 % $ 549,600 4.5 % $ 793,866 6.5 % Tier 1 capital 1,306,476 10.7 % 732,800 6.0 % 977,066 8.0 % Total capital 1,429,156 11.7 % 977,066 8.0 % 1,221,333 10.0 % Tier 1 leverage 1,306,476 7.1 % 735,906 4.0 % 919,883 5.0 % Actual For Capital To Be Well Capitalized Stifel Bank Amount Ratio Amount Ratio Amount Ratio Common equity tier 1 capital $ 758,397 13.6 % $ 251,615 4.5 % $ 363,444 6.5 % Tier 1 capital 758,397 13.6 % 335,487 6.0 % 447,315 8.0 % Total capital 799,189 14.3 % 447,315 8.0 % 559,144 10.0 % Tier 1 leverage 758,397 7.1 % 428,036 4.0 % 535,045 5.0 %

Operating Leases

Operating Leases	9 Months Ended
	Sep. 30, 2024
Lessee Disclosure [Abstract]
Operating Leases	NOTE 17 – Operating Leases Our operating leases primarily relate to office space and office equipment with remaining lease terms of 1 to 15 years. At September 30, 2024 and December 31, 2023, operating lease right-of-use assets were $ 812.7 million and $ 778.2 million, respectively, and lease liabilities were $ 872.4 million and $ 825.5 million, respectively. The table below summarizes our net lease cost for the three and nine months ended September 30, 2024 and 2023 (in thousands) : Three Months Ended September 30, 2024 2023 Operating lease cost $ 27,789 $ 27,183 Short-term lease cost 814 710 Variable lease cost 6,567 7,299 Sublease income ( 290 ) ( 274 ) Net lease cost $ 34,880 $ 34,918 Nine Months Ended September 30, 2024 2023 Operating lease cost $ 82,981 $ 79,961 Short-term lease cost 2,192 1,425 Variable lease cost 20,579 21,244 Sublease income ( 839 ) ( 836 ) Net lease cost $ 104,913 $ 101,794 Operating lease costs are included in occupancy and equipment rental in the consolidated statements of operations. The table below summarizes other information related to our operating leases as of and for the nine months ended September 30, 2024 (in thousands) : Operating lease cash flows $ 75,816 Right-of-use assets obtained in exchange for new operating lease liabilities $ 85,088 Weighted-average remaining lease term (years) 12.6 Weighted-average discount rate 4.93 % The weighted average discount rate represents our company’s incremental borrowing rate at the lease inception date. The table below presents information about operating lease liabilities as of September 30, 2024, (in thousands, except percentages) . Remainder of 2024 $ 27,139 2025 104,756 2026 105,723 2027 106,217 2028 103,840 Thereafter 762,653 Total undiscounted lease payments 1,210,328 Imputed interest ( 337,959 ) Total operating lease liabilities $ 872,369 Aircraft Engine Operating Leases As of September 30, 2024, the Company had a total lease portfolio of 24 aircraft engines with a net book value of $ 157.0 million. The aircraft engines were purchased by the Company, through its subsidiaries, during 2024. See Note 25 for additional information. During the third quarter of 2024, the Company transferred 22 aircraft engines with a net book value of $ 152.1 million from aircraft engine operating leases included in fixed assets, net to aircraft engines held for sale, included in other assets in the accompanying consolidated statements of financial condition. The Company ceases recognition of depreciation expense once an aircraft engine is classified as held for sale. During the third quarter of 2024, the Company sold 2 aircraft engines with a net book value of $ 6.2 million and recognized a gain from the sale of $ 1.1 million, which is included in other income in the consolidated statements of operations. During the nine months ended September 30, 2024, the Company sold 5 aircraft engines with a net book value of $ 23.8 million and recognized a gain from the sale of $ 20.8 million. Lease income, included in other income in the consolidated statements of operations, was $ 8.6 million and $ 18.2 million for the three and nine months ended September 30, 2024, respectively.

Revenues from Contracts with Cu

Revenues from Contracts with Customers	9 Months Ended
	Sep. 30, 2024
Revenue from Contract with Customer [Abstract]
Revenues from Contracts with Customers	NOTE 18 – Revenues from Contracts with Customers The following table presents the Company’s total revenues broken out by revenues from contracts with customers and other sources of revenue for the three and nine months ended September 30, 2024 and 2023 (in thousands) : Three Months Ended September 30, 2024 2023 Revenues from contracts with customers: Commissions $ 183,445 $ 165,075 Investment banking 243,182 146,887 Asset management 382,616 333,127 Other 1,649 1,380 Total revenue from contracts with customers 810,892 646,469 Other sources of revenue: Interest 510,823 505,198 Principal transactions 137,089 114,841 Other 17,056 ( 921 ) Total revenues $ 1,475,860 $ 1,265,587 Nine Months Ended September 30, 2024 2023 Revenues from contracts with customers: Commissions $ 552,238 $ 499,983 Investment banking 690,412 525,591 Asset management 1,130,849 968,960 Other 4,447 3,987 Total revenue from contracts with customers 2,377,946 1,998,521 Other sources of revenue: Interest 1,515,803 1,439,532 Principal transactions 429,677 336,063 Other 35,388 ( 4,927 ) Total revenues $ 4,358,814 $ 3,769,189 Revenue from contracts with customers is recognized when, or as, we satisfy our performance obligations by transferring the promised services to the customers. A service is transferred to a customer when, or as, the customer obtains control of that service. A performance obligation may be satisfied over time or at a point in time. Revenue from a performance obligation satisfied over time is recognized by measuring our progress in satisfying the performance obligation in a manner that depicts the transfer of the services to the customer. Revenue from a performance obligation satisfied at a point in time is recognized at the point in time that we determine the customer obtains control over the promised service. The amount of revenue recognized reflects the consideration we expect to be entitled to in exchange for those promised services (i.e., the “transaction price”). In determining the transaction price, we consider multiple factors, including the effects of variable consideration. Variable consideration is included in the transaction price only to the extent it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainties with respect to the amount are resolved. In determining when to include variable consideration in the transaction price, we consider the range of possible outcomes, the predictive value of our past experiences, the time period of when uncertainties expect to be resolved and the amount of consideration that is susceptible to factors outside of our influence, such as market volatility or the judgment and actions of third parties. The following provides detailed information on the recognition of our revenues from contracts with customers: Commissions. We earn commission revenue by executing, settling, and clearing transactions for clients primarily in OTC and listed equity securities, insurance products, and options. Trade execution and clearing and custody services, when provided together, represent a single performance obligation as the services are not separately identifiable in the context of the contract. Commission revenues associated with combined trade execution and clearing and custody services, as well as trade execution services on a standalone basis, are recognized at a point in time on trade-date. Commission revenues are generally paid on settlement date and we record a receivable between trade-date and payment on settlement date. Investment Banking. We provide our clients with a full range of capital markets and financial advisory services. Capital markets services include underwriting and placement agent services in both the equity and debt capital markets, including private equity placements, initial public offerings, follow-on offerings, underwriting and distributing public and private debt. Capital-raising revenues are recognized at a point in time on trade-date, as the client obtains the control and benefit of the capital markets offering at that point. Costs associated with capital-raising transactions are deferred until the related revenue is recognized or the engagement is otherwise concluded, and are recorded on a gross basis within other operating expenses in the consolidated statements of operations as we are acting as a principal in the arrangement. Any expenses reimbursed by our clients are recognized as investment banking revenues. Revenues from financial advisory services primarily consist of fees generated in connection with merger, acquisition and restructuring transactions. Advisory revenues from mergers and acquisitions engagements are recognized at a point in time when the related transaction is completed, as the performance obligation is to successfully broker a specific transaction. Fees received prior to the completion of the transaction are deferred within accounts payable and accrued expenses on the consolidated statements of financial condition. Advisory revenues from restructuring engagements are recognized over time using a time elapsed measure of progress as our clients simultaneously receive and consume the benefits of those services as they are provided. A significant portion of the fees we receive for our advisory services are considered variable as they are contingent upon a future event (e.g., completion of a transaction or third party emergence from bankruptcy) and are excluded from the transaction price until the uncertainty associated with the variable consideration is subsequently resolved, which is expected to occur upon achievement of the specified milestone. Payment for advisory services are generally due promptly upon completion of a specified milestone or, for retainer fees, periodically over the course of the engagement. We recognize a receivable between the date of completion of the milestone and payment by the customer. Expenses associated with investment banking advisory engagements are deferred only to the extent they are explicitly reimbursable by the client and the related revenue is recognized at the same time as the associated expense. All other investment banking advisory related expenses, including expenses incurred related to restructuring assignments, are expensed as incurred. All investment banking advisory expenses are recognized within other operating expenses on the consolidated statements of operations and any expenses reimbursed by our clients are recognized as investment banking revenues. Asset Management Fees. We earn management and performance fees in connection with investment advisory services provided to institutional and individual clients. Investment advisory fees are charged based on the value of assets in fee-based accounts and are affected by changes in the balances of client assets due to market fluctuations and levels of net new client assets. Fees are charged either in advance based on fixed rates applied to the value of the customers’ account at the beginning of the period or periodically based on contracted rates and account performance. Contracts can be terminated at any time with no incremental payments due to our company upon termination. If the contract is terminated by the customer fees are prorated for the period and fees charged for the post termination period are refundable to the customer. Disaggregation of Revenue The following tables present the Company’s revenues from contracts with customers by reportable segment disaggregated by major business activity and primary geographic regions for the three and nine months ended September 30, 2024 and 2023 (in thousands) : Three Months Ended September 30, 2024 Global Wealth Management Institutional Group Other Total Major Business Activity: Commissions $ 129,230 $ 54,215 $ — $ 183,445 Capital raising 6,217 100,108 — 106,325 Advisory — 136,857 — 136,857 Investment banking 6,217 236,965 — 243,182 Asset management 382,309 307 — 382,616 Other 1,649 — — 1,649 Total 519,405 291,487 — 810,892 Primary Geographic Region: United States 519,405 239,789 — 759,194 United Kingdom — 28,393 — 28,393 Canada — 9,969 — 9,969 Other — 13,336 — 13,336 $ 519,405 $ 291,487 $ — $ 810,892 Three Months Ended September 30, 2023 Global Wealth Management Institutional Group Other Total Major Business Activity: Commissions $ 112,300 $ 52,775 $ — $ 165,075 Capital raising 3,895 45,719 — 49,614 Advisory — 97,273 — 97,273 Investment banking 3,895 142,992 — 146,887 Asset management 333,088 39 — 333,127 Other 1,319 17 44 1,380 Total 450,602 195,823 44 646,469 Primary Geographic Region: United States 450,602 145,787 44 596,433 United Kingdom — 31,240 — 31,240 Canada — 8,601 — 8,601 Other — 10,195 — 10,195 $ 450,602 $ 195,823 $ 44 $ 646,469 Nine Months Ended September 30, 2024 Global Wealth Management Institutional Group Other Total Major business activity: Commissions $ 371,912 $ 180,326 $ — $ 552,238 Capital raising 16,277 286,615 — 302,892 Advisory — 387,520 — 387,520 Investment banking 16,277 674,135 — 690,412 Asset management 1,130,496 353 — 1,130,849 Other 4,447 — — 4,447 Total 1,523,132 854,814 — 2,377,946 Primary Geographic Region: United States 1,523,132 697,337 — 2,220,469 United Kingdom — 89,964 — 89,964 Canada — 31,056 — 31,056 Other — 36,457 — 36,457 $ 1,523,132 $ 854,814 $ — $ 2,377,946 Nine Months Ended September 30, 2023 Global Wealth Management Institutional Group Other Total Major business activity: Commissions $ 332,327 $ 167,656 $ — $ 499,983 Capital raising 12,118 177,263 — 189,381 Advisory — 336,210 — 336,210 Investment banking 12,118 513,473 — 525,591 Asset management 968,863 97 — 968,960 Other 3,821 17 149 3,987 Total 1,317,129 681,243 149 1,998,521 Primary Geographic Region: United States 1,317,129 499,047 149 1,816,325 United Kingdom — 99,844 — 99,844 Canada — 38,738 — 38,738 Other — 43,614 — 43,614 $ 1,317,129 $ 681,243 $ 149 $ 1,998,521 See Note 22 for further break-out of revenues by geography. Information on Remaining Performance Obligations and Revenue Recognized From Past Performance We do not disclose information about remaining performance obligations pertaining to contracts that have an original expected duration of one year or less. The transaction price allocated to remaining unsatisfied or partially unsatisfied performance obligations with an original expected duration exceeding one year was not material at September 30, 2024. Investment banking advisory revenues that are contingent upon completion of a specific milestone and fees associated with certain distribution services are also excluded as the fees are considered variable and not included in the transaction price at September 30, 2024. Contract Balances The timing of our revenue recognition may differ from the timing of payment by our customers. We record a receivable when revenue is recognized prior to payment and we have an unconditional right to payment. Alternatively, when payment precedes the provision of the related services, we record deferred revenue until the performance obligations are satisfied. We had receivables related to revenues from contracts with customers of $ 131.4 million and $ 136.9 million at September 30, 2024 and December 31, 2023, respectively, in other assets in the consolidated statements of financial condition. We had no significant impairments related to these receivables during the nine months ended September 30, 2024. Our deferred revenue primarily relates to retainer fees received in investment banking advisory engagements where the performance obligation has not yet been satisfied. Deferred revenue at September 30, 2024 and December 31, 2023 was $ 21.5 million and $ 18.5 million, respectively, and is included in accounts payable and accrued expenses in the consolidated statements of financial condition.

Interest Income and Interest Ex

Interest Income and Interest Expense	9 Months Ended
	Sep. 30, 2024
Banking and Thrift, Interest [Abstract]
Interest Income and Interest Expense	NOTE 19 – Interest Income and Interest Expense The components of interest income and interest expense are as follows (in thousands) : Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Interest income: Loans held for investment, net $ 319,493 $ 320,715 $ 936,714 $ 928,801 Investment securities 124,582 120,670 360,975 345,201 Interest-bearing cash and federal funds sold 36,684 35,560 128,842 83,280 Margin balances 13,710 15,651 41,870 45,874 Financial instruments owned 7,027 4,402 18,232 12,754 Other 9,327 8,200 29,170 23,622 $ 510,823 $ 505,198 $ 1,515,803 $ 1,439,532 Interest expense: Bank deposits $ 229,725 $ 198,197 $ 680,076 $ 506,847 Senior notes 8,184 12,507 33,197 37,519 Other 13,283 9,832 39,903 22,258 $ 251,192 $ 220,536 $ 753,176 $ 566,624

Employee Incentive, Deferred Co

Employee Incentive, Deferred Compensation, and Retirement Plans	9 Months Ended
	Sep. 30, 2024
Share-Based Payment Arrangement, Recognized Amount [Abstract]
Employee Incentive, Deferred Compensation, and Retirement Plans	NOTE 20 – Employee Incentive, Deferred Compensation, and Retirement Plans We maintain an incentive stock plan and a wealth accumulation plan (“the Plan”) that provides for the granting of stock options, stock appreciation rights, restricted stock, performance awards, stock units, and debentures (collectively, “deferred awards”) to our associates. We are permitted to issue new shares under all stock award plans approved by shareholders or to reissue our treasury shares. Stock awards issued under our company’s incentive stock plan are granted at market value at the date of grant. Our deferred awards generally vest ratably over a one - to ten-year vesting period. Our stock-based compensation plans are administered by the Compensation Committee of the Board of Directors (“Compensation Committee”), which has the authority to interpret the plans, determine to whom awards may be granted under the plans, and determine the terms of each award. According to the incentive stock plan, we are authorized to grant an additional 3.9 million shares at September 30, 2024. Expense associated with our stock-based compensation, included in compensation and benefits expense in the consolidated statements of operations for our company’s incentive stock award plan was $ 36.6 million and $ 35.2 million for the three months ended September 30, 2024 and 2023, respectively, and $ 106.7 million and $ 102.9 million for the nine months ended September 30, 2024 and 2023, respectively. Expense associated with our debentures, included in compensation and benefits expense in the consolidated statements of operations was $ 30.2 million and $ 27.2 million for the three months ended September 30, 2024 and 2023, respectively, and $ 88.2 million and $ 78.4 million for the nine months ended September 30, 2024 and 2023, respectively. Deferred Awards A restricted stock unit represents the right to receive a share of the Company’s common stock at a designated time in the future without cash payment by the associate and is issued in lieu of cash incentive, principally for deferred compensation and employee retention plans. The restricted stock units vest on an annual basis over the next one to ten years and are distributable, if vested, at future specified dates. Restricted stock awards are restricted as to sale or disposition. These restrictions lapse over the next one to two years . The Company grants Performance-based Restricted Stock Units (“PRSUs”) to certain of its executive officers. Under the terms of the grants, the number of PRSUs that will vest and convert to shares will be based on the Company’s achievement of the pre-determined performance objectives during the performance period. The PRSUs will be measured over a four-year performance period and vested over a five-year period. Any resulting delivery of shares for PRSUs granted as part of compensation will occur after four years for 80 % of the earned award, and in the fifth year for the remaining 20 % of the earned award. The number of shares converted has the potential to range from 0 % to 200 % based on how the Company performs during the performance period. Compensation expense is amortized over the service period based on the fair value of the deferred award on the grant date. The Company’s pre-determined performance objectives must be met for the awards to vest. Associates forfeit unvested deferred awards upon termination of employment with a corresponding reversal of compensation expense. Certain deferred awards may continue to vest under certain circumstances as described in the Plan. At September 30, 2024, the total number of restricted stock units, PRSUs, and restricted stock awards outstanding was 13.7 million, of which 12.1 million were unvested. At September 30, 2024, there was unrecognized compensation cost for deferred awards of approximately $ 712.9 million, which is expected to be recognized over a weighted-average period of 2.5 years. Deferred Compensation Plans The Plan is provided to certain revenue producers, officers, and key administrative associates, whereby a certain percentage of their incentive compensation is deferred as defined by the Plan into company stock units, restricted stock, and debentures. Participants may elect to defer a portion of their incentive compensation. Deferred awards generally vest over a one - to ten-year period and are distributable upon vesting or at future specified dates. Deferred compensation costs are amortized on a straight-line basis over the vesting period. Elective deferrals are 100 % vested. Additionally, the Plan allows Stifel financial advisors who achieve certain levels of production the ability to earn deferred awards. These financial advisors can earn 5-6% of their gross commissions that is contributed to their mandatory deferral. The mandatory deferral is split between company restricted stock units and debentures. They have the option to defer an additional 1 % of gross commissions into company stock units. In addition, certain revenue producers, upon joining the Company, may receive company stock units in lieu of transition cash payments. Deferred compensation related to these awards generally vests over a one - to eight-year period. Deferred compensation costs are amortized on a straight-line basis over the deferral period. Profit Sharing Plan Eligible U.S. associates of the Company who have met certain service requirements may participate in the Stifel Financial Corp. Profit Sharing 401(k) Plan (the “401(k) Plan”). Associates are permitted within limitations imposed by tax law to make pre-tax contributions to the 401(k) Plan. We may match certain associate contributions or make additional contributions to the 401(k) Plan at our discretion. Our contributions to the 401(k) Plan, included in compensation and benefits in the consolidated statements of operations, were $ 4.2 million and $ 4.3 million for the three months ended September 30, 2024 and 2023, respectively and $ 13.4 million and $ 13.2 million for the nine months ended September 30, 2024 and 2023, respectively.

Off-Balance Sheet Credit Risk

Off-Balance Sheet Credit Risk	9 Months Ended
	Sep. 30, 2024
Concentration Risks, Types, No Concentration Percentage [Abstract]
Off-Balance Sheet Credit Risk	NOTE 21 – Off-Balance Sheet Credit Risk In the normal course of business, we execute, settle, and finance customer and proprietary securities transactions. These activities expose our company to off-balance sheet risk in the event that customers or other parties fail to satisfy their obligations. In accordance with industry practice, securities transactions generally settle within one business day after trade date. Should a customer or broker fail to deliver cash or securities as agreed, we may be required to purchase or sell securities at unfavorable market prices. We borrow and lend securities to facilitate the settlement process and finance transactions, utilizing customer margin securities held as collateral. We monitor the adequacy of collateral levels on a daily basis. We periodically borrow from banks on a collateralized basis, utilizing firm and customer margin securities in compliance with SEC rules. Should the counterparty fail to return customer securities pledged, we are subject to the risk of acquiring the securities at prevailing market prices in order to satisfy our customer obligations. We control our exposure to credit risk by continually monitoring our counterparties’ positions, and where deemed necessary, we may require a deposit of additional collateral and/or a reduction or diversification of positions. Our company sells securities it does not currently own (short sales) and is obligated to subsequently purchase such securities at prevailing market prices. We are exposed to risk of loss if securities prices increase prior to closing the transactions. We control our exposure to price risk from short sales through daily review and setting position and trading limits. We manage our risks associated with the aforementioned transactions through position and credit limits and the continuous monitoring of collateral. Additional collateral is required from customers and other counterparties when appropriate. We have accepted collateral in connection with resale agreements, securities borrowed transactions, and customer margin loans. Under many agreements, we are permitted to sell or repledge these securities held as collateral and use these securities to enter into securities lending arrangements or to deliver to counterparties to cover short positions. At September 30, 2024 and December 31, 2023, the fair value of securities accepted as collateral where we are permitted to sell or repledge the securities was $ 1.8 billion and $ 1.6 billion, respectively, and the fair value of the collateral that had been sold or repledged was $ 658.0 million and $ 417.6 million, respectively. We enter into interest rate derivative contracts to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. Our derivative financial instruments are principally used to manage differences in the amount, timing, and duration of our known or expected cash payments related to certain variable-rate affiliated deposits. Interest rate swaps designated as cash flow hedges involve the receipt of variable-rate amounts from a counterparty in exchange for us making fixed-rate payments. Our interest rate hedging strategies may not work in all market environments and, as a result, may not be effective in mitigating interest rate risk. Derivatives’ notional contract amounts are not reflected as assets or liabilities in the consolidated statements of financial condition. Rather, the market or fair value of the derivative transactions are reported in the consolidated statements of financial condition as other assets or accounts payable and accrued expenses, as applicable. For a complete discussion of our activities related to derivative instruments, see Note 12 in the notes to consolidated financial statements. In the ordinary course of business, Stifel Bancorp has commitments to originate loans, standby letters of credit, and lines of credit. Commitments to originate loans are agreements to lend to a customer as long as there is no violation of any condition established by the contract. These commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since a portion of the commitments may expire without being drawn upon, the total commitment amounts do not necessarily represent future cash commitments. Each customer’s creditworthiness is evaluated on a case-by-case basis. The amount of collateral obtained, if necessary, is based on the credit evaluation of the counterparty. Collateral held varies, but may include accounts receivable, inventory, property, plant and equipment, commercial real estate, and residential real estate. At September 30, 2024 and December 31, 2023, Stifel Bancorp had outstanding commitments to originate loans aggregating $ 242.2 million and $ 103.6 million, respectively. The commitments extended over varying periods of time, with all commitments at September 30, 2024, scheduled to be disbursed in the following three months. Through Stifel Bancorp, in the normal course of business, we originate residential mortgage loans and sell them to investors. We may be required to repurchase mortgage loans that have been sold to investors in the event there are breaches of certain representations and warranties contained within the sales agreements. We may be required to repurchase mortgage loans that were sold to investors in the event that there was inadequate underwriting or fraud, or in the event that the loans become delinquent shortly after they are originated. We also may be required to indemnify certain purchasers and others against losses they incur in the event of breaches of representations and warranties and in various other circumstances, and the amount of such losses could exceed the repurchase amount of the related loans. Consequently, we may be exposed to credit risk associated with sold loans. Standby letters of credit are irrevocable conditional commitments issued by Stifel Bancorp to guarantee the performance of a customer to a third party. Financial standby letters of credit are primarily issued to support public and private borrowing arrangements, including commercial paper, bond financing, and similar transactions. Performance standby letters of credit are issued to guarantee performance of certain customers under non-financial contractual obligations. The credit risk involved in issuing standby letters of credit is essentially the same as that involved in extending loans to customers. Should Stifel Bancorp be obligated to perform under the standby letters of credit, it may seek recourse from the customer for reimbursement of amounts paid. At September 30, 2024 and December 31, 2023, Stifel Bancorp had outstanding letters of credit totaling $ 41.6 million and $ 37.1 million, respectively. A majority of the standby letters of credit commitments at September 30, 2024, have expiration terms that are less than one year . Lines of credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Lines of credit generally have fixed expiration dates. Stifel Bancorp uses the same credit policies in granting lines of credit as it does for on-balance sheet instruments. At September 30, 2024 and December 31, 2023, Stifel Bancorp had granted unused lines of credit to commercial and consumer borrowers aggregating $ 5.3 billion and $ 6.3 billion, respectively. We are required to evaluate our loan portfolio for any expected losses with recognition of an allowance for credit losses, when applicable. At September 30, 2024 and December 31, 2023, the expected credit losses for unfunded lending commitments was $ 25.9 million and $ 33.3 million, respectively.

Segment Reporting

Segment Reporting	9 Months Ended
	Sep. 30, 2024
Segment Reporting [Abstract]
Segment Reporting	NOTE 22 – Segment Reporting We currently operate through the following three business segments: Global Wealth Management, Institutional Group, and various corporate activities combined in the Other segment. Our Global Wealth Management segment consists of two businesses, the Private Client Group and Stifel Bancorp. The Private Client Group includes branch offices and independent contractor offices of our broker-dealer subsidiaries located throughout the United States. These branches provide securities brokerage services, including the sale of equities, mutual funds, fixed income products, and insurance, as well as offering banking products to their clients through our bank subsidiaries, which provide residential, consumer, and commercial lending, as well as FDIC-insured deposit accounts to customers of our private client group and to the general public. The Institutional Group segment includes institutional sales and trading. It provides securities brokerage, trading, and research services to institutions, with an emphasis on the sale of equity and fixed income products. This segment also includes the management of and participation in underwritings for both corporate and public finance (exclusive of sales credits generated through the private client group, which are included in the Global Wealth Management segment), merger and acquisition, and financial advisory services. The Other segment includes interest income from stock borrow activities, unallocated interest expense, interest income and gains and losses from investments held, amortization of stock-based awards, and all unallocated overhead cost associated with the execution of orders; processing of securities transactions; custody of client securities; receipt, identification, and delivery of funds and securities; compliance with regulatory and legal requirements; internal financial accounting and controls; and general administration and acquisition charges. Information concerning operations in these segments of business for the three and nine months ended September 30, 2024 and 2023 is as follows (in thousands) : Three Months Ended Nine Months Ended 2024 2023 2024 2023 Net revenues: (1) Global Wealth Management $ 827,116 $ 768,558 $ 2,418,751 $ 2,283,934 Institutional Group 372,401 256,888 1,114,498 867,025 Other 25,151 19,605 72,389 51,606 $ 1,224,668 $ 1,045,051 $ 3,605,638 $ 3,202,565 Income/(loss) before income taxes: Global Wealth Management $ 301,703 $ 298,449 $ 891,624 $ 914,462 Institutional Group 41,797 ( 27,804 ) 127,719 ( 5,671 ) Other ( 126,842 ) ( 161,216 ) ( 357,100 ) ( 408,094 ) $ 216,658 $ 109,429 $ 662,243 $ 500,697 (1) No individual client accounted for more than 10 percent of total net revenues for the three and nine months ended September 30, 2024 and 2023. The following table presents our company’s total assets on a segment basis at September 30, 2024 and December 31, 2023 (in thousands) : September 30, December 31, Global Wealth Management $ 33,511,302 $ 32,773,613 Institutional Group 5,211,808 4,564,058 Other 211,394 389,789 $ 38,934,504 $ 37,727,460 We have operations in the United States, United Kingdom, Europe, and Canada. The Company’s foreign operations are conducted through its wholly owned subsidiaries, SNEL and SNC. Substantially all long-lived assets are located in the United States. Revenues, classified by the major geographic areas in which they were earned for the three and nine months ended September 30, 2024 and 2023, were as follows (in thousands) : Three Months Ended Nine Months Ended 2024 2023 2024 2023 United States $ 1,167,463 $ 979,282 $ 3,415,635 $ 2,982,274 United Kingdom 32,945 45,095 113,168 131,855 Canada 9,309 8,364 31,539 37,195 Other 14,951 12,310 45,296 51,241 $ 1,224,668 $ 1,045,051 $ 3,605,638 $ 3,202,565

Earnings Per Share ("EPS")

Earnings Per Share ("EPS")	9 Months Ended
	Sep. 30, 2024
Earnings Per Share [Abstract]
Earnings Per Share ("EPS")	NOTE 23 – Earnings Per Share (“EPS”) Basic EPS is computed by dividing earnings available to common shareholders by the weighted-average number of common shares outstanding. Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock that then shared in the earnings of the entity. Diluted earnings per share include dilutive stock options and stock units under the treasury stock method. The following table sets forth the computation of basic and diluted earnings per share for the three and nine months ended September 30, 2024 and 2023 (in thousands, except per share data) : Three Months Ended Nine Months Ended 2024 2023 2024 2023 Net income $ 158,505 $ 68,161 $ 487,374 $ 360,052 Preferred dividends 9,320 9,321 27,961 27,961 Net income available to common shareholders $ 149,185 $ 58,840 $ 459,413 $ 332,091 Shares for basic and diluted calculation: Average shares used in basic computation 103,966 106,068 104,135 107,580 Dilutive effect of stock options and units (1) 7,028 7,127 6,322 6,590 Average shares used in diluted computation 110,994 113,195 110,457 114,170 Earnings per common share: Basic $ 1.43 $ 0.55 $ 4.41 $ 3.09 Diluted $ 1.34 $ 0.52 $ 4.16 $ 2.91 (1) Diluted earnings per share is computed on the basis of the weighted-average number of shares of common stock plus the effect of dilutive potential common shares outstanding during the period using the treasury stock method. Diluted earnings per share include units. For the three and nine months ended September 30, 2024 and 2023, the anti-dilutive effect from restricted stock units was immaterial. Cash Dividends During the three and nine months ended September 30, 2024, we declared and paid cash dividends of $ 0.42 and $ 1.26 per common share. During the three and nine months ended September 30, 2023, we declared and paid cash dividends of $ 0.36 and $ 1.08 per common share.

Shareholders' Equity

Shareholders' Equity	9 Months Ended
	Sep. 30, 2024
Equity [Abstract]
Shareholders' Equity	NOTE 24 – Shareholders’ Equity Share Repurchase Program We have an ongoing authorization from the Board of Directors to repurchase our common stock in the open market or in negotiated transactions. At September 30, 2024, the maximum number of shares that may yet be purchased under this plan was 10.5 million. The repurchase program has no expiration date. These purchases may be made on the open market or in privately negotiated transactions, depending upon market conditions and other factors. Repurchased shares may be used to meet obligations under our company’s employee benefit plans and for general corporate purposes. The following table presents the Company’s share repurchase activity using existing Board authorizations during the three and nine months ending September 30, 2024 and 2023 (in thousands, except average price) : Three Months Ended Nine Months Ended 2024 2023 2024 2023 Share repurchases $ 20,222 $ 118,810 $ 98,529 $ 300,152 Number of shares 249 1,886 1,318 4,830 Average price $ 81.23 $ 63.00 $ 74.78 $ 62.14 Issuance of Common Stock from Treasury During the nine months ended September 30, 2024, we issued 2.6 million shares of common stock from treasury, primarily a result of vesting and exercise transactions under our incentive stock award plans.

Variable Interest Entities

Variable Interest Entities	9 Months Ended
	Sep. 30, 2024
Variable Interest Entity, Not Primary Beneficiary, Disclosures [Abstract]
Variable Interest Entities	NOTE 25 – Variable Interest Entities Our variable interests in VIEs include debt and equity interests, commitments, certain fees, the establishment of Stifel Financial Capital Trusts, and our issuance of a convertible promissory note. Our involvement with VIEs arises primarily from the following activities: purchases of securities in connection with our trading and secondary market-making activities; retained interests held as a result of securitization activities; and loans to, investments in, and fees from various investment vehicles. Securitization Interests During the first quarter of 2024, the Company purchased the E-Certificates of Turbine Engines Securitization Ltd. (“Turbine”). The purchase of these Turbine E-Certificates represents 100 % of the equity of Turbine. During the second quarter of 2024, the Company purchased additional membership interests in Stifel Aviation Finance II, LLC (“SAF II”). The purchase of the additional membership interests gave the Company a controlling financial interest in SAF II. The Company has determined the interest it holds in these VIEs require consolidation in its financial statements, as it is deemed to be the primary beneficiary. The assets acquired and liabilities assumed were recorded at fair value as of the respective consolidation dates. At September 30, 2024, the assets primarily consist of aircraft engines that are under operating leases, included in other assets in the accompanying consolidated statements of financial condition. See Note 17 for additional information. The liabilities primarily consist of debt, included in accounts payable and accrued expenses in the accompanying consolidated statements of financial condition. The following table presents the aggregate assets and liabilities from those VIEs in which we hold a variable interest and have concluded that we are the primary beneficiary (in thousands) : September 30, 2024 Aggregate Assets Aggregate Liabilities Securitization interests $ 182,051 $ 168,452 Debt and Equity Investments The Company’s investment in and additional capital commitments to these investment vehicles are considered variable interests. The Company’s additional capital commitments are subject to call and are limited to the amount committed. These investment vehicles have net assets, primarily consisting of investments, aircraft engine-related assets, and debt. We have concluded that we are not the primary beneficiary of these VIEs, and therefore, we do not consolidate these entities. Our maximum exposure to loss is limited to the total of our carrying value. Partnership Interests We have formed several non-consolidated investment funds with third-party investors that are typically organized as limited liability companies (“LLCs”) or limited partnerships. These investment vehicles have assets primarily consisting of private and public equity investments. For those funds where we act as the general partner, our company’s economic interest is generally limited to management fee arrangements as stipulated by the fund operating agreements. We have generally provided the third-party investors with rights to terminate the funds or to remove us as the general partner. We have concluded that we are not the primary beneficiary of these VIEs, and therefore, we do not consolidate these entities. The following tables present the aggregate assets, liabilities, and the maximum exposure to loss from those VIEs in which we hold a variable interest, but as to which we have concluded we are not the primary beneficiary (in thousands) : September 30, 2024 Aggregate Assets Aggregate Liabilities Maximum Exposure to Loss Debt and Equity Investments $ 401,672 $ 195,379 $ 39,890 Partnership Interests 313,584 985 — $ 715,256 $ 196,364 $ 39,890 December 31, 2023 Aggregate Assets Aggregate Liabilities Maximum Exposure to Loss Debt and Equity Investments $ 456,286 $ 277,924 $ 40,088 Partnership Interests 341,980 678 — $ 798,266 $ 278,602 $ 40,088 Debenture to Stifel Financial Capital Trusts We have completed private placements of cumulative trust preferred securities through Stifel Financial Capital Trust II, Stifel Financial Capital Trust III, and Stifel Financial Capital Trust IV (collectively, the “Trusts”). The Trusts are non-consolidated wholly owned business trust subsidiaries of our company and were established for the limited purpose of issuing trust securities to third parties and lending the proceeds to our company. The trust preferred securities represent an indirect interest in junior subordinated debentures purchased from our company by the Trusts, and we effectively provide for the full and unconditional guarantee of the securities issued by the Trusts. We make timely payments of interest to the Trusts as required by contractual obligations, which are sufficient to cover payments due on the securities issued by the Trusts, and believe that it is unlikely that any circumstances would occur that would make it necessary for our company to make payments related to these Trusts other than those required under the terms of the debenture agreements and the trust preferred securities agreements. The Trusts were determined to be VIEs because the holders of the equity investment at risk do not have adequate decision-making ability over the Trust’s activities. Our investment in the Trusts is not a variable interest, because equity interests are variable interests only to the extent that the investment is considered to be at risk. Because our investment was funded by the Trusts, it is not considered to be at risk.

Nature of Operations, Basis o_2

Nature of Operations, Basis of Presentation, and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature Of Operations	Nature of Operations Stifel Financial Corp. (the “Company”), through its wholly owned subsidiaries, is principally engaged in retail brokerage; securities trading; investment banking; investment advisory; retail, consumer, and commercial banking; and related financial services. Our major geographic area of concentration is throughout the United States, with a presence in the United Kingdom, Europe, and Canada. Our company’s principal customers are individual investors, corporations, municipalities, and institutions.
Basis Of Presentation	Basis of Presentation The consolidated financial statements include Stifel Financial Corp. and its wholly owned subsidiaries, principally Stifel, Nicolaus & Company, Incorporated (“Stifel”), Keefe, Bruyette & Woods, Inc. (“KBW”), Stifel Bancorp, Inc. (“Stifel Bancorp”), Stifel Nicolaus Canada Inc. (“SNC”), and Stifel Nicolaus Europe Limited (“SNEL”). Unless otherwise indicated, the terms “we,” “us,” “our,” or “our company” in this report refer to Stifel Financial Corp. and its wholly owned subsidiaries. We have prepared the accompanying unaudited consolidated financial statements pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Pursuant to these rules and regulations, we have omitted certain information and footnote disclosures we normally include in our annual consolidated financial statements prepared in accordance with U.S. generally accepted accounting principles. In management’s opinion, we have made all adjustments (consisting only of normal, recurring adjustments, except as otherwise noted) necessary to fairly present our financial position, results of operations and cash flows. Our interim period operating results do not necessarily indicate the results that may be expected for any other interim period or for the full fiscal year. These financial statements and accompanying notes should be read in conjunction with the consolidated financial statements and the notes thereto in our Annual Report on Form 10-K for the year ended December 31, 2023 on file with the SEC. Certain amounts from prior periods have been reclassified to conform to the current period’s presentation. The effect of these reclassifications on our company’s previously reported consolidated financial statements was not material.
Consolidation Policies	Consolidation Policies The consolidated financial statements include the accounts of Stifel Financial Corp. and its subsidiaries. All material intercompany balances and transactions have been eliminated in consolidation. We have investments or interests in other entities for which we must evaluate whether to consolidate by determining whether we have a controlling financial interest or are considered to be the primary beneficiary. Under our current consolidation policy we consolidate those entities where we have the power to direct the activities of the entity that most significantly impact the entity’s economic performance and the obligation to absorb losses of the entity or the rights to receive benefits from the entity that could potentially be significant to the entity. We determine whether we are the primary beneficiary of a variable interest entity (“VIE”) by performing an analysis of the VIE’s control structure, expected benefits and losses, and expected residual returns. This analysis includes a review of, among other factors, the VIE’s capital structure, contractual terms, which interests create or absorb benefits or losses, variability, related party relationships, and the design of the VIE. We reassess our evaluation of whether an entity is a VIE when certain reconsideration events occur. We reassess our determination of whether we are the primary beneficiary of a VIE on an ongoing basis based on current facts and circumstances. See Note 25 for additional information on VIEs.

New Accounting Pronouncements (

New Accounting Pronouncements (Policies)	9 Months Ended
	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Recently Issued Accounting Guidance	Recently Adopted Accounting Guidance Fair Value Measurement In June 2022, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2022-03, “Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions” (ASU 2022-03), an update to ASC Topic 820 – Fair Value Measurement. The amendments in ASU 2022-03 clarify that a contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security and, therefore, is not considered in measuring fair value. The amendments clarify that an entity cannot, as a separate unit of account, recognize and measure a contractual sale restriction. The amendments require new disclosures related to equity securities subject to contractual sale restrictions, including the fair value of such equity securities, the nature and remaining duration of the corresponding restrictions, and any circumstances that could cause a lapse in the restrictions. The amendments are effective for annual reporting periods beginning after December 15, 2023 (January 1, 2024, for our company), and for the interim periods within those annual reporting periods. The adoption of the accounting update did not have a material impact on our consolidated financial statements. Leases In March 2023, the FASB issued ASU 2023-01, “Leases (Topic 842): Common Control Arrangements,” which requires entities to classify and account for leases with related parties on the basis of legally enforceable terms and conditions of the arrangement. The accounting update is effective for interim and annual periods beginning after December 15, 2023 (January 1, 2024, for our company). The adoption of the accounting update did not have a material impact on our consolidated financial statements. Segment Reporting In November 2023, the FASB issued ASU 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures,” which requires enhanced disclosures for significant expenses by reportable operating segment. Significant expense categories and amounts are those regularly provided to the chief operating decision maker (CODM) and included in the measure of a segment’s profit or loss. The updated guidance will also require us to disclose the title and position of our CODM, including an explanation of how our CODM uses the reported measure(s) of segment profit or loss in assessing segment performance and deciding how to allocate resources. The accounting update is effective for annual periods beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. While the adoption of the accounting update will not have a material impact on our consolidated financial statements, we are currently evaluating the impact to our segment disclosures. Recently Issued Accounting Guidance Income Taxes In December 2023, the FASB issued ASU 2023-09, “Income Taxes (Topic 240): Improvements to Income Tax Disclosures,” which requires additional disclosure and disaggregated information in the Income Tax Rate reconciliation using both percentages and reporting currency amounts, with additional qualitative explanations of individually significant reconciling items. The updated guidance also requires disclosure of the amount of income taxes paid (net of refunds received) disaggregated by jurisdictional categories (federal (national), state, and foreign). The accounting update is effective for annual periods beginning after December 15, 2024 (January 1, 2025 for our company), with early adoption permitted. We are currently assessing the updated guidance; however, it is not expected to have a material impact to our consolidated financial statements.

Receivables From and Payables_2

Receivables From and Payables to Brokers, Dealers and Clearing Organizations (Tables)	9 Months Ended
	Sep. 30, 2024
Due to and from Broker-Dealers and Clearing Organizations [Abstract]
Amounts Receivable from Brokers, Dealers, and Clearing Organizations	Amounts receivable from brokers, dealers, and clearing organizations at September 30, 2024 and December 31, 2023, included (in thousands) : September 30, December 31, Receivable from clearing organizations $ 262,949 $ 178,991 Deposits paid for securities borrowed 252,037 215,368 Securities failed to deliver 45,998 19,785 $ 560,984 $ 414,144
Amounts Payable to Brokers, Dealers, and Clearing Organizations	Amounts payable to brokers, dealers, and clearing organizations at September 30, 2024 and December 31, 2023, included (in thousands) : September 30, December 31, Deposits received from securities loaned $ 152,255 $ 135,693 Securities failed to receive 42,296 91,636 Payable to clearing organizations 15,716 4,407 $ 210,267 $ 231,736

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Schedule Of Fair Value Of Investments In And Unfunded Commitments To Funds Measured At Net Asset Value	The table below presents the fair value of our investments in, and unfunded commitments to, funds that are measured at NAV as of September 30, 2024 and December 31, 2023 (in thousands) : September 30, 2024 December 31, 2023 Fair value of investments Unfunded commitments Fair value of investments Unfunded commitments Partnership interests $ 26,025 $ 11,692 $ 24,261 $ 14,454 Money market funds 1,768 — 4,706 — Mutual funds 570 — 3,632 — Private equity funds 448 1,181 368 1,181 Total $ 28,811 $ 12,873 $ 32,967 $ 15,635
Fair Value Of Assets And Liabilities Measured On Recurring Basis	Assets and liabilities measured at fair value on a recurring basis as of September 30, 2024, are presented below (in thousands) : September 30, 2024 Total Level 1 Level 2 Level 3 Financial instruments owned: U.S. government securities $ 19,662 $ 19,662 $ — $ — U.S. government agency securities 198,038 — 198,038 — Agency mortgage-backed securities 369,513 — 369,513 — Asset-backed securities 96,290 — 95,155 1,135 Corporate securities: Fixed income securities 302,247 — 302,247 — Equity securities 58,526 56,605 1,921 — State and municipal securities 244,491 — 244,491 — Other (1) 62,531 — 4,006 58,525 Total financial instruments owned 1,351,298 76,267 1,215,371 59,660 Available-for-sale securities: U.S. government agency securities 2,298 — 2,298 — State and municipal securities 2,351 — 2,351 — Mortgage-backed securities: Agency 925,385 — 925,385 — Commercial 67,898 — 67,898 — Non-agency 215 — 215 — Corporate fixed income securities 486,817 — 486,817 — Asset-backed securities 133,325 — 133,325 — Total available-for-sale securities 1,618,289 — 1,618,289 — Investments: Corporate equity securities 25,887 13,795 214 11,878 Auction rate securities 738 — — 738 Other (2) 39,382 35 — 39,347 Investments in funds and partnerships measured at NAV 27,043 Total investments 93,050 13,830 214 51,963 Cash equivalents measured at NAV 1,768 Derivative contracts (3) 95,327 — 95,327 — $ 3,159,732 $ 90,097 $ 2,929,201 $ 111,623 (1) Includes syndicated loans, non-agency mortgage-backed securities, and sovereign debt. (2) Primarily includes private company investments. (3) Included in other assets in the consolidated statements of financial condition. September 30, 2024 Total Level 1 Level 2 Level 3 Liabilities: Financial instruments sold, but not yet purchased: U.S. government securities $ 441,703 $ 441,703 $ — $ — Agency mortgage-backed securities 114,969 — 114,969 — Corporate securities: Fixed income securities 186,964 — 186,964 — Equity securities 24,221 24,221 — — Other (4) 1,052 — 334 718 Total financial instruments sold, but not yet purchased 768,909 465,924 302,267 718 Derivative contracts (5) 95,314 — 95,314 — $ 864,223 $ 465,924 $ 397,581 $ 718 (4) Includes syndicated loans, U.S. government agency securities, and sovereign debt. (5) Included in accounts payable and accrued expenses in the consolidated statements of financial condition. Assets and liabilities measured at fair value on a recurring basis as of December 31, 2023, are presented below (in thousands) : December 31, 2023 Total Level 1 Level 2 Level 3 Financial instruments owned: U.S. government securities $ 32,411 $ 32,411 $ — $ — U.S. government agency securities 106,634 — 106,634 — Agency mortgage-backed securities 159,903 — 159,903 — Asset-backed securities 19,604 — 18,106 1,498 Corporate securities: Fixed income securities 237,671 210 237,461 — Equity securities 52,520 52,158 362 — State and municipal securities 223,155 — 223,155 — Other (1) 86,843 — 3,879 82,964 Total financial instruments owned 918,741 84,779 749,500 84,462 Available-for-sale securities: U.S. government agency securities 2,219 — 2,219 — State and municipal securities 2,351 — 2,351 — Mortgage-backed securities: Agency 746,170 — 746,170 — Commercial 66,671 — 66,671 — Non-agency 261 — 261 — Corporate fixed income securities 556,161 — 556,161 — Asset-backed securities 177,853 — 177,853 — Total available-for-sale securities 1,551,686 — 1,551,686 — Investments: Corporate equity securities 22,406 10,313 215 11,878 Auction rate securities 783 — — 783 Other (2) 39,655 73 115 39,467 Investments in funds and partnerships measured at NAV 28,261 Total investments 91,105 10,386 330 52,128 Cash equivalents measured at NAV 4,706 Derivative contracts (3) 118,668 — 118,668 — $ 2,684,906 $ 95,165 $ 2,420,184 $ 136,590 (1) Includes syndicated loans, non-agency mortgage-backed securities, and sovereign debt. (2) Primarily includes private company investments. (3) Included in other assets in the consolidated statements of financial condition. December 31, 2023 Total Level 1 Level 2 Level 3 Liabilities: Financial instruments sold, but not yet purchased: U.S. government securities $ 273,653 $ 273,653 $ — $ — U.S. government agency securities 4,924 — 4,924 — Agency mortgage-backed securities 52,664 — 52,664 — Corporate securities: Fixed income securities 138,359 — 138,359 — Equity securities 21,576 21,576 — — Other (4) 6,565 — 2,729 3,836 Total financial instruments sold, but not yet purchased 497,741 295,229 198,676 3,836 Derivative contracts (5) 118,651 — 118,651 — $ 616,392 $ 295,229 $ 317,327 $ 3,836 (4) Includes syndicated loans, state and municipal securities, and asset-backed securities. (5) Included in accounts payable and accrued expenses in the consolidated statements of financial condition .
Schedule Of Changes In Fair Value Associated With Level 3 Financial Instruments	The following table summarizes the changes in fair value associated with Level 3 financial instruments during the three months ended September 30, 2024 (in thousands) : Three Months Ended September 30, 2024 Financial instruments owned Investments Asset-Backed Securities Syndicated Loans Corporate Equity Securities Auction Rate Other Balance at June 30, 2024 $ 1,203 $ 65,713 $ 11,878 $ 739 $ 39,349 Unrealized gains/(losses) — 146 — ( 1 ) ( 2 ) Realized gains/(losses) 97 ( 1,460 ) — — — Purchases — 19,118 — — — Sales — ( 16,866 ) — — — Redemptions ( 165 ) ( 8,126 ) — — — Net change ( 68 ) ( 7,188 ) — ( 1 ) ( 2 ) Balance at September 30, 2024 $ 1,135 $ 58,525 $ 11,878 $ 738 $ 39,347 The following table summarizes the change in fair value associated with Level 3 financial instruments during the nine months ended September 30, 2024 (in thousands): Nine Months Ended September 30, 2024 Financial instruments owned Investments Asset-Backed Securities Syndicated Loans Corporate Equity Securities Auction Rate Other Balance at December 31, 2023 $ 1,498 $ 82,964 $ 11,878 $ 783 $ 39,467 Unrealized gains/(losses) — 1,694 — ( 45 ) ( 120 ) Realized gains/(losses) 1,397 ( 3,252 ) — — — Purchases — 47,546 — — — Sales — ( 49,810 ) — — — Redemptions ( 1,760 ) ( 20,617 ) — — — Net change ( 363 ) ( 24,439 ) — ( 45 ) ( 120 ) Balance at September 30, 2024 $ 1,135 $ 58,525 $ 11,878 $ 738 $ 39,347
Schedule Of Fair Value Of Financial Instruments	The following reflects the fair value of financial instruments as of September 30, 2024 and December 31, 2023, whether or not recognized in the consolidated statements of financial condition at fair value (in thousands) . September 30, 2024 December 31, 2023 Carrying Estimated Carrying Estimated Financial assets: Cash and cash equivalents $ 1,915,767 $ 1,915,767 $ 3,361,801 $ 3,361,801 Cash segregated for regulatory purposes 29,519 29,519 162,048 162,048 Securities purchased under agreements to resell 665,067 665,067 349,849 349,849 Financial instruments owned 1,351,298 1,351,298 918,741 918,741 Available-for-sale securities 1,618,289 1,618,289 1,551,686 1,551,686 Held-to-maturity securities 6,613,793 6,626,453 5,888,798 5,852,176 Bank loans 20,167,686 19,447,489 19,305,805 18,259,923 Loans held for sale 465,739 465,739 423,999 423,999 Investments 93,050 93,050 91,105 91,105 Derivative contracts (1) 95,327 95,327 118,668 118,668 Financial liabilities: Securities sold under agreements to repurchase $ 657,984 $ 657,984 $ 417,644 $ 417,644 Bank deposits 28,120,518 26,182,382 27,334,579 25,326,174 Financial instruments sold, but not yet purchased 768,909 768,909 497,741 497,741 Senior notes 616,412 592,839 1,115,629 1,041,217 Debentures to Stifel Financial Capital Trusts 60,000 55,508 60,000 55,507 Derivative contracts (2) 95,314 95,314 118,651 118,651 (1) Included in other assets in the consolidated statements of financial condition. (2) Included in accounts payable and accrued expenses in the consolidated statements of financial condition.
Estimated Fair Values Of Financial Instruments Not Measured At Fair Value	The following tables present the estimated fair values of financial instruments not measured at fair value on a recurring basis as of September 30, 2024 and December 31, 2023 (in thousands) : September 30, 2024 Total Level 1 Level 2 Level 3 Financial assets: Cash $ 1,913,999 $ 1,913,999 $ — $ — Cash segregated for regulatory purposes 29,519 29,519 — — Securities purchased under agreements to resell 665,067 — 665,067 — Held-to-maturity securities 6,626,453 — 6,555,074 71,379 Bank loans 19,447,489 — 19,447,489 — Loans held for sale 465,739 — 465,739 — Financial liabilities: Securities sold under agreements to repurchase $ 657,984 $ — $ 657,984 $ — Bank deposits 26,182,382 — 26,182,382 — Senior notes 592,839 592,839 — — Debentures to Stifel Financial Capital Trusts 55,508 — — 55,508 December 31, 2023 Total Level 1 Level 2 Level 3 Financial assets: Cash $ 3,357,095 $ 3,357,095 $ — $ — Cash segregated for regulatory purposes 162,048 162,048 — — Securities purchased under agreements to resell 349,849 — 349,849 — Held-to-maturity securities 5,852,176 — 5,758,130 94,046 Bank loans 18,259,923 — 18,259,923 — Loans held for sale 423,999 — 423,999 — Financial liabilities: Securities sold under agreements to repurchase $ 417,644 $ — $ 417,644 $ — Bank deposits 25,326,174 — 25,326,174 — Senior notes 1,041,217 1,041,217 — — Debentures to Stifel Financial Capital Trusts 55,507 — — 55,507

Financial Instruments Owned a_2

Financial Instruments Owned and Financial Instruments Sold, But Not Yet Purchased (Tables)	9 Months Ended
	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Components of Trading Securities Owned and Trading Securities Sold, But Not Yet Purchased	The components of financial instruments owned and financial instruments sold, but not yet purchased, at September 30, 2024 and December 31, 2023 are as follows (in thousands) : September 30, December 31, Financial instruments owned: U.S. government securities $ 19,662 $ 32,411 U.S. government agency securities 198,038 106,634 Agency mortgage-backed securities 369,513 159,903 Asset-backed securities 96,290 19,604 Corporate securities: Fixed income securities 302,247 237,671 Equity securities 58,526 52,520 State and municipal securities 244,491 223,155 Other (1) 62,531 86,843 $ 1,351,298 $ 918,741 Financial instruments sold, but not yet purchased: U.S. government securities $ 441,703 $ 273,653 Agency mortgage-backed securities 114,969 52,664 Corporate securities: Fixed income securities 186,964 138,359 Equity securities 24,221 21,576 Other (2) 1,052 11,489 $ 768,909 $ 497,741 (1) Includes syndicated loans, non-agency mortgage-backed securities, and sovereign debt. (2) Includes syndicated loans, U.S. government agency securities, sovereign debt, state and municipal securities, and asset-backed securities.

Available-For-Sale And Held-T_2

Available-For-Sale And Held-To-Maturity Securities (Tables)	9 Months Ended
	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Schedule of Amortized Cost and Fair Values of Available for Sale Securities and Held to Maturity Securities	The following tables provide a summary of the amortized cost and fair values of the available-for-sale securities and held-to-maturity securities at September 30, 2024 and December 31, 2023 (in thousands) : September 30, 2024 Amortized Gross (1) Gross (1) Fair Value Available-for-sale securities U.S. government agency securities $ 2,399 $ 10 $ ( 111 ) $ 2,298 State and municipal securities 2,350 1 — 2,351 Mortgage-backed securities: Agency 1,017,358 1,202 ( 93,175 ) 925,385 Commercial 69,659 — ( 1,761 ) 67,898 Non-agency 224 — ( 9 ) 215 Corporate fixed income securities 526,303 — ( 39,486 ) 486,817 Asset-backed securities 134,111 74 ( 860 ) 133,325 $ 1,752,404 $ 1,287 $ ( 135,402 ) $ 1,618,289 Held-to-maturity securities (2) Asset-backed securities $ 6,613,793 $ 17,893 $ ( 5,233 ) $ 6,626,453 December 31, 2023 Amortized Gross (1) Gross (1) Fair Value Available-for-sale securities U.S. government agency securities $ 2,376 $ 5 $ ( 162 ) $ 2,219 State and municipal securities 2,350 1 — 2,351 Mortgage-backed securities: Agency 855,456 — ( 109,286 ) 746,170 Commercial 70,326 — ( 3,655 ) 66,671 Non-agency 274 — ( 13 ) 261 Corporate fixed income securities 615,131 — ( 58,970 ) 556,161 Asset-backed securities 181,717 — ( 3,864 ) 177,853 $ 1,727,630 $ 6 $ ( 175,950 ) $ 1,551,686 Held-to-maturity securities (2) Asset-backed securities $ 5,888,798 $ 6,387 $ ( 43,009 ) $ 5,852,176 (1) Unrealized gains/(losses) related to available-for-sale securities are reported in accumulated other comprehensive loss. 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.
Schedule of Amortized Cost and Fair Values of Debt Securities by Contractual Maturity	The table below summarizes the amortized cost and fair values of our securities by contractual maturity at September 30, 2024 and December 31, 2023 (in thousands) . Expected maturities may differ significantly from contractual maturities, as issuers may have the right to call or prepay obligations with or without call or prepayment penalties. September 30, 2024 December 31, 2023 Amortized Fair Value Amortized Fair Value Available-for-sale securities Within one year $ 85,543 $ 84,944 $ 105,389 $ 104,113 After one year through three years 128,649 123,743 184,975 174,827 After three years through five years 26,268 24,226 38,462 34,316 After five years through ten years 400,645 364,789 448,931 398,624 After ten years 1,111,299 1,020,587 949,873 839,806 $ 1,752,404 $ 1,618,289 $ 1,727,630 $ 1,551,686 Held-to-maturity securities After three years through five years 26,584 26,598 — — After five years through ten years 2,916,495 2,922,027 2,754,817 2,740,154 After ten years 3,670,714 3,677,828 3,133,981 3,112,022 $ 6,613,793 $ 6,626,453 $ 5,888,798 $ 5,852,176
Schedule of Contractual Maturities	The maturities of our available-for-sale (fair value) and held-to-maturity (amortized cost) securities at September 30, 2024, are as follows ( in thousands ): Within 1 1-5 Years 5-10 Years After 10 Total Available-for-sale securities (1) U.S. government agency securities $ — $ 2,298 $ — $ — $ 2,298 State and municipal securities — 2,351 — — 2,351 Mortgage-backed securities: Agency — 224 80,761 844,400 925,385 Commercial — — — 67,898 67,898 Non-agency — — 215 — 215 Corporate fixed income securities 84,944 143,096 258,777 — 486,817 Asset-backed securities — — 25,036 108,289 133,325 $ 84,944 $ 147,969 $ 364,789 $ 1,020,587 $ 1,618,289 Held-to-maturity securities Asset-backed securities $ — $ 26,584 $ 2,916,495 $ 3,670,714 $ 6,613,793 (1) Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis.
Schedule of Gross Unrealized Losses and Estimated Fair Value by Length of Time	The following table shows the gross unrealized losses and fair value of the Company’s investment securities with unrealized losses, aggregated by investment category and length of time the individual investment securities have been in continuous unrealized loss positions, at September 30, 2024 (in thousands) : Less than 12 months 12 months or more Total Gross Fair Value Gross Fair Value Gross Fair Value Available-for-sale securities U.S. government agency securities $ — $ — $ ( 111 ) $ 1,839 $ ( 111 ) $ 1,839 Mortgage-backed securities: Agency ( 281 ) 12,388 ( 92,894 ) 682,765 ( 93,175 ) 695,153 Commercial — — ( 1,761 ) 67,898 ( 1,761 ) 67,898 Non-agency — — ( 9 ) 215 ( 9 ) 215 Corporate fixed income securities — — ( 39,486 ) 486,817 ( 39,486 ) 486,817 Asset-backed securities ( 17 ) 8,250 ( 843 ) 93,001 ( 860 ) 101,251 $ ( 298 ) $ 20,638 $ ( 135,104 ) $ 1,332,535 $ ( 135,402 ) $ 1,353,173
Schedule of Amortized Cost of Held-To-Maturity Securities by Credit Quality Indicator	The following table shows the amortized cost of our held-to-maturity securities by credit quality indicator at September 30, 2024 (in thousands) : AAA AA C NR Total Held-to-maturity securities Asset-backed securities $ 2,697,543 $ 3,871,408 $ 842 $ 44,000 $ 6,613,793

Bank Loans (Tables)

Bank Loans (Tables)	9 Months Ended
	Sep. 30, 2024
Receivables [Abstract]
Schedule of Balance and Associated Percentage of Each Major Loan Category in Bank Loan Portfolio	The following table presents the balance and associated percentage of each major loan category in our bank loan portfolio at September 30, 2024 and December 31, 2023 (in thousands, except percentages) : September 30, 2024 December 31, 2023 Balance Percent Balance Percent Residential real estate $ 8,406,932 41.3 % $ 8,047,647 41.4 % Commercial and industrial 3,896,824 19.1 3,566,987 18.3 Fund banking 3,762,960 18.5 3,633,126 18.7 Securities-based loans 2,273,246 11.2 2,306,455 11.9 Construction and land 1,219,787 6.0 1,034,370 5.3 Commercial real estate 565,686 2.8 660,631 3.4 Home equity lines of credit 170,732 0.8 136,270 0.7 Other 53,414 0.3 55,981 0.3 Gross bank loans 20,349,581 100.0 % 19,441,467 100.0 % Loans in process/(unapplied loan payments), net ( 38,825 ) 1,108 Unamortized loan fees, net ( 5,720 ) ( 8,478 ) Allowance for loan losses ( 137,350 ) ( 128,292 ) Loans held for investment, net $ 20,167,686 $ 19,305,805
Activity in the Allowance for Loan Losses by Portfolio Segment	The following tables detail activity in the allowance for loan losses by portfolio segment for the three and nine months ended September 30, 2024 (in thousands) . Three Months Ended September 30, 2024 Beginning Provision Charge-offs Recoveries Ending Commercial and industrial $ 76,354 $ 10,321 $ ( 6,813 ) $ — $ 79,862 Construction and land 16,379 3,396 — — 19,775 Commercial real estate 15,312 ( 2,997 ) — — 12,315 Fund banking 12,179 ( 1,642 ) — — 10,537 Residential real estate 11,242 28 — — 11,270 Securities-based loans 2,813 40 — — 2,853 Home equity lines of credit 362 ( 143 ) — — 219 Other 473 205 ( 159 ) — 519 $ 135,114 $ 9,208 $ ( 6,972 ) $ — $ 137,350 Nine Months Ended September 30, 2024 Beginning Provision Charge-offs Recoveries Ending Commercial and industrial $ 67,077 $ 22,476 $ ( 10,624 ) $ 933 $ 79,862 Construction and land 11,817 7,958 — — 19,775 Commercial real estate 21,386 ( 7,381 ) ( 1,690 ) — 12,315 Fund banking 10,173 364 — — 10,537 Residential real estate 13,855 ( 2,585 ) — — 11,270 Securities-based loans 3,035 ( 182 ) — — 2,853 Home equity lines of credit 371 ( 152 ) — — 219 Other 578 100 ( 159 ) — 519 $ 128,292 $ 20,598 $ ( 12,473 ) $ 933 $ 137,350 The following tables detail activity in the allowance for loan losses by portfolio segment for the three and nine months ended September 30, 2023 (in thousands) . Three Months Ended September 30, 2023 Beginning Provision Charge-offs Recoveries Ending Commercial and industrial $ 66,377 $ 8,584 $ ( 302 ) $ — $ 74,659 Commercial real estate 13,429 6,437 — — 19,866 Residential real estate 14,413 194 — — 14,607 Fund banking 12,178 ( 660 ) — — 11,518 Construction and land 12,645 ( 1,145 ) — — 11,500 Securities-based loans 3,086 ( 68 ) — — 3,018 Home equity lines of credit 168 27 — — 195 Other 385 49 — — 434 $ 122,681 $ 13,418 $ ( 302 ) $ — $ 135,797 Nine Months Ended September 30, 2023 Beginning Provision Charge-offs Recoveries Ending Commercial and industrial $ 54,143 $ 21,283 $ ( 920 ) $ 153 $ 74,659 Commercial real estate 12,897 6,969 — — 19,866 Residential real estate 20,441 ( 5,834 ) — — 14,607 Fund banking 11,711 ( 193 ) — — 11,518 Construction and land 8,568 2,932 — — 11,500 Securities-based loans 3,157 ( 139 ) — — 3,018 Home equity lines of credit 364 ( 169 ) — — 195 Other 372 62 — — 434 $ 111,653 $ 24,911 $ ( 920 ) $ 153 $ 135,797
Aging of the Recorded Investment in Past Due Loans	The following tables present the aging of the recorded investment in past due loans at September 30, 2024 and December 31, 2023 by portfolio segment (in thousands) : As of September 30, 2024 30 – 89 Days 90 or More Total Past Current Total Residential real estate $ 12,597 $ 3,226 $ 15,823 $ 8,391,109 $ 8,406,932 Commercial and industrial 60,901 — 60,901 3,835,923 3,896,824 Fund banking — — — 3,762,960 3,762,960 Securities-based loans — 850 850 2,272,396 2,273,246 Construction and land — — — 1,219,787 1,219,787 Commercial real estate — — — 565,686 565,686 Home equity lines of credit 305 568 873 169,859 170,732 Other 58 51 109 53,305 53,414 Total $ 73,861 $ 4,695 $ 78,556 $ 20,271,025 $ 20,349,581 As of September 30, 2024* Nonaccrual Nonperforming loans with no allowance Total Commercial and industrial $ 43,742 $ 13,833 $ 57,575 Construction and land 48,349 — 48,349 Commercial real estate 34,813 — 34,813 Residential real estate 1,251 1,705 2,956 Home equity lines of credit 378 — 378 Other 51 — 51 Total $ 128,584 $ 15,538 $ 144,122 * There were no loans past due 90 days and still accruing interest at September 30, 2024. As of December 31, 2023 30 – 89 Days 90 or More Total Current Total Residential real estate $ 15,312 $ 3,945 $ 19,257 $ 8,028,390 $ 8,047,647 Fund banking — — — 3,633,126 3,633,126 Commercial and industrial — 2,022 2,022 3,564,965 3,566,987 Securities-based loans — 3 3 2,306,452 2,306,455 Construction and land — — — 1,034,370 1,034,370 Commercial real estate — — — 660,631 660,631 Home equity lines of credit 570 87 657 135,613 136,270 Other 45 59 104 55,877 55,981 Total $ 15,927 $ 6,116 $ 22,043 $ 19,419,424 $ 19,441,467 As of December 31, 2023* Nonaccrual Nonperforming loans with no allowance Total Commercial real estate $ 39,195 $ — $ 39,195 Residential real estate 3,090 1,000 4,090 Commercial and industrial — 2,022 2,022 Securities-based loans — 3 3 Home equity lines of credit 22 65 87 Other 59 — 59 Total $ 42,366 $ 3,090 $ 45,456 * There were no loans past due 90 days and still accruing interest at December 31, 2023.
Risk Category of Loan Portfolio	Based on the most recent analysis performed, the risk category of our loan portfolio was as follows (in thousands) : As of September 30, 2024 Pass Special Mention Substandard Doubtful Total Residential real estate $ 8,401,700 $ 2,006 $ 3,226 $ — $ 8,406,932 Commercial and industrial 3,526,625 140,345 185,342 44,512 3,896,824 Fund banking 3,762,960 — — — 3,762,960 Securities-based loans 2,273,246 — — — 2,273,246 Construction and land 1,171,438 — — 48,349 1,219,787 Commercial real estate 462,443 11,980 56,450 34,813 565,686 Home equity lines of credit 170,070 94 568 — 170,732 Other 53,338 76 — — 53,414 Total $ 19,821,820 $ 154,501 $ 245,586 $ 127,674 $ 20,349,581 As of December 31, 2023 Pass Special Mention Substandard Doubtful Total Residential real estate $ 8,042,246 $ 1,456 $ 3,945 $ — $ 8,047,647 Fund banking 3,633,126 — — — 3,633,126 Commercial and industrial 3,294,891 89,302 180,772 2,022 3,566,987 Securities-based loans 2,306,452 — — 3 2,306,455 Construction and land 963,083 71,287 — — 1,034,370 Commercial real estate 512,171 49,264 99,196 — 660,631 Home equity lines of credit 135,806 377 87 — 136,270 Other 55,922 — — 59 55,981 Total $ 18,943,697 $ 211,686 $ 284,000 $ 2,084 $ 19,441,467
Schedule of Term Loans Amortized Cost Basis by Origination Year and Revolving Cost Amortized Cost Basis	Term Loans Amortized Cost Basis by Origination Year – September 30, 2024 2024 2023 2022 2021 2020 Prior Revolving Loans Amortized Cost Basis Total Residential real estate: Pass $ 872,201 $ 1,105,958 $ 2,505,122 $ 2,192,501 $ 859,573 $ 866,345 $ — $ 8,401,700 Special Mention — — 574 1,432 — — — 2,006 Substandard — — 2,355 88 — 783 — 3,226 Doubtful — — — — — — — — $ 872,201 $ 1,105,958 $ 2,508,051 $ 2,194,021 $ 859,573 $ 867,128 $ — $ 8,406,932 Commercial and industrial: Pass $ 646,852 $ 585,845 $ 799,469 $ 652,190 $ 65,669 $ 123,823 $ 652,777 $ 3,526,625 Special Mention 1,421 10,148 29,331 27,867 14,258 — 57,320 140,345 Substandard — — 55,406 49,249 — — 80,687 185,342 Doubtful — — 5,132 27,190 — 3,254 8,936 44,512 $ 648,273 $ 595,993 $ 889,338 $ 756,496 $ 79,927 $ 127,077 $ 799,720 $ 3,896,824 Fund banking: Pass $ 1,200 $ 790 $ 41,544 $ — $ 334 $ — $ 3,719,092 $ 3,762,960 Special Mention — — — — — — — — Substandard — — — — — — — — Doubtful — — — — — — — — $ 1,200 $ 790 $ 41,544 $ — $ 334 $ — $ 3,719,092 $ 3,762,960 Securities-based loans: Pass $ 8,115 $ 14,491 $ 2,147 $ 2,123 $ 51,807 $ 36,572 $ 2,157,991 $ 2,273,246 Special Mention — — — — — — — — Substandard — — — — — — — — Doubtful — — — — — — — — $ 8,115 $ 14,491 $ 2,147 $ 2,123 $ 51,807 $ 36,572 $ 2,157,991 $ 2,273,246 Construction and land: Pass $ 4,224 $ 208,373 $ 596,763 $ 197,077 $ 151,861 $ 13,140 $ — $ 1,171,438 Special Mention — — — — — — — — Substandard — — — — — — — — Doubtful — — — — — 48,349 — 48,349 $ 4,224 $ 208,373 $ 596,763 $ 197,077 $ 151,861 $ 61,489 $ — $ 1,219,787 Commercial real estate: Pass $ — $ 33,736 $ 260,279 $ 64,881 $ 29,991 $ 73,556 $ — $ 462,443 Special Mention — — 11,980 — — — — 11,980 Substandard — — 56,450 — — — — 56,450 Doubtful — — — 34,813 — — — 34,813 $ — $ 33,736 $ 328,709 $ 99,694 $ 29,991 $ 73,556 $ — $ 565,686 Home equity lines of credit: Pass $ — $ — $ — $ — $ — $ — $ 170,070 $ 170,070 Special Mention — — — — — — 94 94 Substandard — — — — — — 568 568 Doubtful — — — — — — — — $ — $ — $ — $ — $ — $ — $ 170,732 $ 170,732 Other: Pass $ 3,492 $ — $ 3,991 $ — $ 10,000 $ 24,954 $ 10,901 $ 53,338 Special Mention — — — — — — 76 76 Substandard — — — — — — — — Doubtful — — — — — — — — $ 3,492 $ — $ 3,991 $ — $ 10,000 $ 24,954 $ 10,977 $ 53,414

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Carrying Amount of Goodwill and Intangible Assets	The carrying amount of goodwill and intangible assets attributable to each of our reporting segments is presented in the following table (in thousands) : December 31, Adjustments Write-off September 30, Goodwill Global Wealth Management $ 335,009 $ — $ — $ 335,009 Institutional Group 1,053,234 5,848 — 1,059,082 $ 1,388,243 $ 5,848 $ — $ 1,394,091 December 31, Adjustments Amortization September 30, Intangible assets Global Wealth Management $ 28,687 $ — $ ( 3,305 ) $ 25,382 Institutional Group 104,592 1,598 ( 14,405 ) 91,785 $ 133,279 $ 1,598 $ ( 17,710 ) $ 117,167
Intangible Assets	Intangible assets as of September 30, 2024 and December 31, 2023 were as follows (in thousands) : September 30, 2024 December 31, 2023 Gross Accumulated Amortization Gross Accumulated Amortization Customer relationships $ 229,320 $ 133,214 $ 227,486 $ 122,971 Trade names 30,359 23,477 30,359 22,366 Acquired technology 18,314 7,635 18,314 3,447 Non-compete agreements 10,700 9,314 10,700 8,421 Investment banking backlog 8,913 6,935 8,913 5,758 Core deposits 8,615 8,479 8,615 8,145 $ 306,221 $ 189,054 $ 304,387 $ 171,108
Amortization Expense in Future Periods	As of September 30, 2024, we expect amortization expense in future periods to be as follows (in thousands) : Fiscal year Remainder of 2024 $ 5,558 2025 21,109 2026 17,005 2027 13,308 2028 12,350 Thereafter 45,719 $ 115,049

Senior Notes (Tables)

Senior Notes (Tables)	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Summary of Senior Notes	The following table summarizes our senior notes as of September 30, 2024 and December 31, 2023 (in thousands) : September 30, December 31, 4.25 % senior notes, due 2024 (1) $ — $ 500,000 4.00 % senior notes, due 2030 (2) 400,000 400,000 5.20 % senior notes, due 2047 (3) 225,000 225,000 625,000 1,125,000 Debt issuance costs, net ( 8,588 ) ( 9,371 ) Senior notes, net $ 616,412 $ 1,115,629 (1) In July 2014, we sold in a registered underwritten public offering, $ 300.0 million in aggregate principal amount of 4.25 % senior notes due July 2024 . Interest on these senior notes is payable semi-annually in arrears. We may redeem the notes in whole or in part, at our option, at a redemption price equal to 100 % of their principal amount, plus a “make-whole” premium and accrued and unpaid interest, if any, to the date of redemption. In July 2016, we issued an additional $ 200.0 million in aggregate principal amount of 4.25% senior notes due July 2024. On July 18, 2024, the Company’s 4.25 % Senior Notes matured resulting in the retirement of the $ 500.0 million outstanding balance. (2) In May 2020, we sold in a registered underwritten public offering, $ 400.0 million in aggregate principal amount of 4.00 % senior notes due May 2030 . Interest on these senior notes is payable semi-annually in arrears. We may redeem the notes in whole or in part, at our option, at a redemption price equal to the greater of a) 100 % of their principal amount, or b) discounted present value at Treasury rate plus 50 basis points prior to February 15, 2030, and on or after February 15, 2030, at 100 % of their principal amount, and accrued and unpaid interest, if any, to the date of redemption. (3) In October 2017, we completed the pricing of a registered underwritten public offering of $ 200.0 million in aggregate principal amount of 5.20 % senior notes due October 2047 . Interest on the senior notes is payable quarterly in arrears. We may redeem some or all of the senior notes at any time at a redemption price equal to 100 % of the principal amount of the notes being redeemed plus accrued interest thereon to the redemption date. On October 27, 2017, we completed the sale of an additional $ 25.0 million aggregate principal amount of Notes pursuant to the over-allotment option.
Schedule of Corporate Date Maturity	Our senior notes mature as follows, based upon contractual terms (in thousands) : 2024 $ — 2025 — 2026 — 2027 — 2028 — Thereafter 625,000 $ 625,000

Bank Deposits (Tables)

Bank Deposits (Tables)	9 Months Ended
	Sep. 30, 2024
Deposits Liabilities, Balance Sheet, Reported Amounts [Abstract]
Schedule of Deposits	Deposits consist of interest-bearing demand deposits (primarily money market and savings accounts), non-interest bearing demand deposits, and certificates of deposit. Deposits at September 30, 2024 and December 31, 2023 were as follows (in thousands) : September 30, December 31, Demand deposits (interest-bearing) $ 27,539,904 $ 27,111,072 Demand deposits (non-interest-bearing) 309,982 223,505 Certificates of deposit 270,632 2 $ 28,120,518 $ 27,334,579

Derivative Instruments and He_2

Derivative Instruments and Hedging Activities (Tables)	9 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Fair Values of Derivative Instruments	The following tables provide the notional values and fair values of our derivative instruments as of September 30, 2024 and December 31, 2023 (in thousands) : September 30, 2024 Derivative Assets Derivative Liabilities Notional value Interest rate contracts $ 95,327 $ 95,314 $ 2,195,110 December 31, 2023 Derivative Assets Derivative Liabilities Notional value Interest rate contracts $ 118,668 $ 118,651 $ 1,994,919
Schedule of Maturities of Derivative Instruments	The scheduled maturities of our derivative instruments as of September 30, 2024, are as follows (in thousands) : Within one year $ 219,563 One to three years 780,905 Three to five years 456,562 Five to ten years 662,976 Ten to fifteen years 58,020 Fifteen years and thereafter 17,084 $ 2,195,110
Schedule of Distribution of Customer Interest Rate Derivative	The following table presents the distribution of customer interest rate derivative transactions, by derivative product, as of September 30, 2024 and December 31, 2023 (in thousands) : September 30, December 31, Swaps $ 2,025,110 $ 1,824,919 Written options 170,000 170,000 $ 2,195,110 $ 1,994,919

Disclosures About Offsetting _2

Disclosures About Offsetting Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2024
Offsetting [Abstract]
Financial Assets and Derivative Assets that are Subject to Offset	The following table provides information about financial assets and derivative assets that are subject to offset as of September 30, 2024 and December 31, 2023 (in thousands) : As of September 30, 2024 Securities borrowing (1) Reverse repurchase agreements (2) Interest rate contracts (3) Total Gross amounts of recognized assets $ 252,037 $ 665,067 $ 95,327 $ 1,012,431 Gross amounts offset in the statement of financial condition — — — — Net amounts presented in the statement of financial condition 252,037 665,067 95,327 1,012,431 Gross amounts not offset in the statement of financial condition: Amounts available for offset ( 83,345 ) ( 4,079 ) ( 24,945 ) ( 112,369 ) Available collateral ( 158,275 ) ( 657,485 ) ( 63,929 ) ( 879,689 ) Net amount $ 10,417 $ 3,503 $ 6,453 $ 20,373 As of December 31, 2023 Securities borrowing (1) Reverse repurchase agreements (2) Interest rate contracts (3) Total Gross amounts of recognized assets $ 215,368 $ 349,849 $ 118,668 $ 683,885 Gross amounts offset in the statement of financial condition — — — — Net amounts presented in the statement of financial condition 215,368 349,849 118,668 683,885 Gross amounts not offset in the statement of financial condition: Amounts available for offset ( 23,691 ) ( 23,441 ) ( 14,556 ) ( 61,688 ) Available collateral ( 184,689 ) ( 325,627 ) ( 82,607 ) ( 592,923 ) Net amount $ 6,988 $ 781 $ 21,505 $ 29,274 (1) Securities borrowing transactions are included in receivables from brokers, dealers, and clearing organizations on the consolidated statements of financial condition. See Note 3 in the notes to consolidated financial statements for additional information on receivables from brokers, dealers, and clearing organizations. (2) Available collateral includes securities received 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 received as collateral was $ 661.5 million and $ 350.2 million at September 30, 2024 and December 31, 2023, respectively. (3) Available collateral includes securities received 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 received as collateral was $ 73.5 million and $ 84.1 million at September 30, 2024 and December 31, 2023, respectively.
Financial Liabilities and Derivative Liabilities that are Subject to Offset	The following table provides information about financial liabilities and derivative liabilities that are subject to offset as of September 30, 2024 and December 31, 2023 (in thousands) : As of September 30, 2024 Securities lending (4) Repurchase agreements (5) Interest rate contracts (6) Total Gross amounts of recognized liabilities $ ( 152,255 ) $ ( 657,984 ) $ ( 95,314 ) $ ( 905,553 ) Gross amounts offset in the statement of financial condition — — — — Net amounts presented in the statement of financial condition ( 152,255 ) ( 657,984 ) ( 95,314 ) ( 905,553 ) Gross amounts not offset in the statement of financial condition: Amounts available for offset 83,345 4,079 24,945 112,369 Collateral pledged 68,910 653,905 15,453 738,268 Net amount $ — $ — $ ( 54,916 ) $ ( 54,916 ) As of December 31, 2023 Securities lending (4) Repurchase agreements (5) Interest rate contracts (6) Total Gross amounts of recognized liabilities $ ( 135,693 ) $ ( 417,644 ) $ ( 118,651 ) $ ( 671,988 ) Gross amounts offset in the statement of financial condition — — — — Net amounts presented in the statement of financial condition ( 135,693 ) ( 417,644 ) ( 118,651 ) ( 671,988 ) Gross amounts not offset in the statement of financial condition: Amounts available for offset 23,691 23,441 14,556 61,688 Collateral pledged 111,981 394,203 22,661 528,845 Net amount $ ( 21 ) $ — $ ( 81,434 ) $ ( 81,455 ) (4) Securities lending transactions are included in payables to brokers, dealers, and clearing organizations on the consolidated statements of financial condition. See Note 3 in the notes to consolidated financial statements for additional information on payables to brokers, dealers, and clearing organizations. (5) Collateral pledged includes the fair value of securities pledged to the counterparty. These securities are included on the consolidated statements of financial condition unless we default. Collateral pledged by our company to the counterparty includes U.S. government agency securities, U.S. government securities, and corporate fixed income securities with market values of $ 689.0 million and $ 425.9 million at September 30, 2024 and December 31, 2023, respectively. (6) Collateral pledged includes the fair value of securities pledged to the counterparty. The fair value of securities pledged as collateral was $ 21.2 million and $ 19.1 million at September 30, 2024 and December 31, 2023, respectively.

Regulatory Capital Requiremen_2

Regulatory Capital Requirements (Tables)	9 Months Ended
	Sep. 30, 2024
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Schedule Of Total Risk-Based, Tier 1 Risk-Based, And Tier 1 Leverage Ratios	The amounts and ratios for Stifel Financial Corp., Stifel Bank & Trust, and Stifel Bank as of September 30, 2024 are represented in the tables below (in thousands, except ratios). Actual For Capital To Be Well Capitalized Stifel Financial Corp. Amount Ratio Amount Ratio Amount Ratio Common equity tier 1 capital $ 3,474,276 15.0 % $ 1,043,246 4.5 % $ 1,506,911 6.5 % Tier 1 capital 4,159,276 17.9 % 1,390,994 6.0 % 1,854,659 8.0 % Total capital 4,377,743 18.9 % 1,854,659 8.0 % 2,318,324 10.0 % Tier 1 leverage 4,159,276 11.3 % 1,472,539 4.0 % 1,840,674 5.0 % Actual For Capital To Be Well Capitalized Stifel Bank & Trust Amount Ratio Amount Ratio Amount Ratio Common equity tier 1 capital $ 1,306,476 10.7 % $ 549,600 4.5 % $ 793,866 6.5 % Tier 1 capital 1,306,476 10.7 % 732,800 6.0 % 977,066 8.0 % Total capital 1,429,156 11.7 % 977,066 8.0 % 1,221,333 10.0 % Tier 1 leverage 1,306,476 7.1 % 735,906 4.0 % 919,883 5.0 % Actual For Capital To Be Well Capitalized Stifel Bank Amount Ratio Amount Ratio Amount Ratio Common equity tier 1 capital $ 758,397 13.6 % $ 251,615 4.5 % $ 363,444 6.5 % Tier 1 capital 758,397 13.6 % 335,487 6.0 % 447,315 8.0 % Total capital 799,189 14.3 % 447,315 8.0 % 559,144 10.0 % Tier 1 leverage 758,397 7.1 % 428,036 4.0 % 535,045 5.0 %

Operating Leases (Tables)

Operating Leases (Tables)	9 Months Ended
	Sep. 30, 2024
Lessee Disclosure [Abstract]
Schedule of Net Lease Cost	The table below summarizes our net lease cost for the three and nine months ended September 30, 2024 and 2023 (in thousands) : Three Months Ended September 30, 2024 2023 Operating lease cost $ 27,789 $ 27,183 Short-term lease cost 814 710 Variable lease cost 6,567 7,299 Sublease income ( 290 ) ( 274 ) Net lease cost $ 34,880 $ 34,918 Nine Months Ended September 30, 2024 2023 Operating lease cost $ 82,981 $ 79,961 Short-term lease cost 2,192 1,425 Variable lease cost 20,579 21,244 Sublease income ( 839 ) ( 836 ) Net lease cost $ 104,913 $ 101,794 The table below summarizes other information related to our operating leases as of and for the nine months ended September 30, 2024 (in thousands) : Operating lease cash flows $ 75,816 Right-of-use assets obtained in exchange for new operating lease liabilities $ 85,088 Weighted-average remaining lease term (years) 12.6 Weighted-average discount rate 4.93 %
Schedule of Information About Operating Lease Liabilities	The table below presents information about operating lease liabilities as of September 30, 2024, (in thousands, except percentages) . Remainder of 2024 $ 27,139 2025 104,756 2026 105,723 2027 106,217 2028 103,840 Thereafter 762,653 Total undiscounted lease payments 1,210,328 Imputed interest ( 337,959 ) Total operating lease liabilities $ 872,369

Revenues from Contracts with _2

Revenues from Contracts with Customers (Tables)	9 Months Ended
	Sep. 30, 2024
Revenue from Contract with Customer [Abstract]
Schedule of Total Revenues Broken Out by Revenues from Contracts with Customers and Other Sources of Revenue	The following table presents the Company’s total revenues broken out by revenues from contracts with customers and other sources of revenue for the three and nine months ended September 30, 2024 and 2023 (in thousands) : Three Months Ended September 30, 2024 2023 Revenues from contracts with customers: Commissions $ 183,445 $ 165,075 Investment banking 243,182 146,887 Asset management 382,616 333,127 Other 1,649 1,380 Total revenue from contracts with customers 810,892 646,469 Other sources of revenue: Interest 510,823 505,198 Principal transactions 137,089 114,841 Other 17,056 ( 921 ) Total revenues $ 1,475,860 $ 1,265,587 Nine Months Ended September 30, 2024 2023 Revenues from contracts with customers: Commissions $ 552,238 $ 499,983 Investment banking 690,412 525,591 Asset management 1,130,849 968,960 Other 4,447 3,987 Total revenue from contracts with customers 2,377,946 1,998,521 Other sources of revenue: Interest 1,515,803 1,439,532 Principal transactions 429,677 336,063 Other 35,388 ( 4,927 ) Total revenues $ 4,358,814 $ 3,769,189
Revenues from Contracts with Customers Disaggregated by Major Business Activity and Primary Geographic Regions	The following tables present the Company’s revenues from contracts with customers by reportable segment disaggregated by major business activity and primary geographic regions for the three and nine months ended September 30, 2024 and 2023 (in thousands) : Three Months Ended September 30, 2024 Global Wealth Management Institutional Group Other Total Major Business Activity: Commissions $ 129,230 $ 54,215 $ — $ 183,445 Capital raising 6,217 100,108 — 106,325 Advisory — 136,857 — 136,857 Investment banking 6,217 236,965 — 243,182 Asset management 382,309 307 — 382,616 Other 1,649 — — 1,649 Total 519,405 291,487 — 810,892 Primary Geographic Region: United States 519,405 239,789 — 759,194 United Kingdom — 28,393 — 28,393 Canada — 9,969 — 9,969 Other — 13,336 — 13,336 $ 519,405 $ 291,487 $ — $ 810,892 Three Months Ended September 30, 2023 Global Wealth Management Institutional Group Other Total Major Business Activity: Commissions $ 112,300 $ 52,775 $ — $ 165,075 Capital raising 3,895 45,719 — 49,614 Advisory — 97,273 — 97,273 Investment banking 3,895 142,992 — 146,887 Asset management 333,088 39 — 333,127 Other 1,319 17 44 1,380 Total 450,602 195,823 44 646,469 Primary Geographic Region: United States 450,602 145,787 44 596,433 United Kingdom — 31,240 — 31,240 Canada — 8,601 — 8,601 Other — 10,195 — 10,195 $ 450,602 $ 195,823 $ 44 $ 646,469 Nine Months Ended September 30, 2024 Global Wealth Management Institutional Group Other Total Major business activity: Commissions $ 371,912 $ 180,326 $ — $ 552,238 Capital raising 16,277 286,615 — 302,892 Advisory — 387,520 — 387,520 Investment banking 16,277 674,135 — 690,412 Asset management 1,130,496 353 — 1,130,849 Other 4,447 — — 4,447 Total 1,523,132 854,814 — 2,377,946 Primary Geographic Region: United States 1,523,132 697,337 — 2,220,469 United Kingdom — 89,964 — 89,964 Canada — 31,056 — 31,056 Other — 36,457 — 36,457 $ 1,523,132 $ 854,814 $ — $ 2,377,946 Nine Months Ended September 30, 2023 Global Wealth Management Institutional Group Other Total Major business activity: Commissions $ 332,327 $ 167,656 $ — $ 499,983 Capital raising 12,118 177,263 — 189,381 Advisory — 336,210 — 336,210 Investment banking 12,118 513,473 — 525,591 Asset management 968,863 97 — 968,960 Other 3,821 17 149 3,987 Total 1,317,129 681,243 149 1,998,521 Primary Geographic Region: United States 1,317,129 499,047 149 1,816,325 United Kingdom — 99,844 — 99,844 Canada — 38,738 — 38,738 Other — 43,614 — 43,614 $ 1,317,129 $ 681,243 $ 149 $ 1,998,521

Interest Income and Interest _2

Interest Income and Interest Expense (Tables)	9 Months Ended
	Sep. 30, 2024
Banking and Thrift, Interest [Abstract]
Components of Interest Income and Interest Expense	The components of interest income and interest expense are as follows (in thousands) : Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Interest income: Loans held for investment, net $ 319,493 $ 320,715 $ 936,714 $ 928,801 Investment securities 124,582 120,670 360,975 345,201 Interest-bearing cash and federal funds sold 36,684 35,560 128,842 83,280 Margin balances 13,710 15,651 41,870 45,874 Financial instruments owned 7,027 4,402 18,232 12,754 Other 9,327 8,200 29,170 23,622 $ 510,823 $ 505,198 $ 1,515,803 $ 1,439,532 Interest expense: Bank deposits $ 229,725 $ 198,197 $ 680,076 $ 506,847 Senior notes 8,184 12,507 33,197 37,519 Other 13,283 9,832 39,903 22,258 $ 251,192 $ 220,536 $ 753,176 $ 566,624

Segment Reporting (Tables)

Segment Reporting (Tables)	9 Months Ended
	Sep. 30, 2024
Segment Reporting [Abstract]
Schedule Of Operating Information, Segment	Information concerning operations in these segments of business for the three and nine months ended September 30, 2024 and 2023 is as follows (in thousands) : Three Months Ended Nine Months Ended 2024 2023 2024 2023 Net revenues: (1) Global Wealth Management $ 827,116 $ 768,558 $ 2,418,751 $ 2,283,934 Institutional Group 372,401 256,888 1,114,498 867,025 Other 25,151 19,605 72,389 51,606 $ 1,224,668 $ 1,045,051 $ 3,605,638 $ 3,202,565 Income/(loss) before income taxes: Global Wealth Management $ 301,703 $ 298,449 $ 891,624 $ 914,462 Institutional Group 41,797 ( 27,804 ) 127,719 ( 5,671 ) Other ( 126,842 ) ( 161,216 ) ( 357,100 ) ( 408,094 ) $ 216,658 $ 109,429 $ 662,243 $ 500,697 (1) No individual client accounted for more than 10 percent of total net revenues for the three and nine months ended September 30, 2024 and 2023.
Schedule Of Information Of Total Assets On Segment Basis	The following table presents our company’s total assets on a segment basis at September 30, 2024 and December 31, 2023 (in thousands) : September 30, December 31, Global Wealth Management $ 33,511,302 $ 32,773,613 Institutional Group 5,211,808 4,564,058 Other 211,394 389,789 $ 38,934,504 $ 37,727,460
Schedule Of Net Revenues Earned On Major Geographical Areas	Revenues, classified by the major geographic areas in which they were earned for the three and nine months ended September 30, 2024 and 2023, were as follows (in thousands) : Three Months Ended Nine Months Ended 2024 2023 2024 2023 United States $ 1,167,463 $ 979,282 $ 3,415,635 $ 2,982,274 United Kingdom 32,945 45,095 113,168 131,855 Canada 9,309 8,364 31,539 37,195 Other 14,951 12,310 45,296 51,241 $ 1,224,668 $ 1,045,051 $ 3,605,638 $ 3,202,565

Earnings Per Share ("EPS") (Tab

Earnings Per Share ("EPS") (Tables)	9 Months Ended
	Sep. 30, 2024
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Share	The following table sets forth the computation of basic and diluted earnings per share for the three and nine months ended September 30, 2024 and 2023 (in thousands, except per share data) : Three Months Ended Nine Months Ended 2024 2023 2024 2023 Net income $ 158,505 $ 68,161 $ 487,374 $ 360,052 Preferred dividends 9,320 9,321 27,961 27,961 Net income available to common shareholders $ 149,185 $ 58,840 $ 459,413 $ 332,091 Shares for basic and diluted calculation: Average shares used in basic computation 103,966 106,068 104,135 107,580 Dilutive effect of stock options and units (1) 7,028 7,127 6,322 6,590 Average shares used in diluted computation 110,994 113,195 110,457 114,170 Earnings per common share: Basic $ 1.43 $ 0.55 $ 4.41 $ 3.09 Diluted $ 1.34 $ 0.52 $ 4.16 $ 2.91 (1) Diluted earnings per share is computed on the basis of the weighted-average number of shares of common stock plus the effect of dilutive potential common shares outstanding during the period using the treasury stock method. Diluted earnings per share include units.

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2024
Equity [Abstract]
Schedule of Company's Shares Repurchase Activity	The following table presents the Company’s share repurchase activity using existing Board authorizations during the three and nine months ending September 30, 2024 and 2023 (in thousands, except average price) : Three Months Ended Nine Months Ended 2024 2023 2024 2023 Share repurchases $ 20,222 $ 118,810 $ 98,529 $ 300,152 Number of shares 249 1,886 1,318 4,830 Average price $ 81.23 $ 63.00 $ 74.78 $ 62.14

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	9 Months Ended
	Sep. 30, 2024
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Schedule of Aggregate Assets and Liabilities from VIEs	The following table presents the aggregate assets and liabilities from those VIEs in which we hold a variable interest and have concluded that we are the primary beneficiary (in thousands) : September 30, 2024 Aggregate Assets Aggregate Liabilities Securitization interests $ 182,051 $ 168,452 Debt and Equity Investments The Company’s investment in and additional capital commitments to these investment vehicles are considered variable interests. The Company’s additional capital commitments are subject to call and are limited to the amount committed. These investment vehicles have net assets, primarily consisting of investments, aircraft engine-related assets, and debt. We have concluded that we are not the primary beneficiary of these VIEs, and therefore, we do not consolidate these entities. Our maximum exposure to loss is limited to the total of our carrying value.
Variable Interest Entity Not Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Schedule of Aggregate Assets and Liabilities from VIEs	The following tables present the aggregate assets, liabilities, and the maximum exposure to loss from those VIEs in which we hold a variable interest, but as to which we have concluded we are not the primary beneficiary (in thousands) : September 30, 2024 Aggregate Assets Aggregate Liabilities Maximum Exposure to Loss Debt and Equity Investments $ 401,672 $ 195,379 $ 39,890 Partnership Interests 313,584 985 — $ 715,256 $ 196,364 $ 39,890 December 31, 2023 Aggregate Assets Aggregate Liabilities Maximum Exposure to Loss Debt and Equity Investments $ 456,286 $ 277,924 $ 40,088 Partnership Interests 341,980 678 — $ 798,266 $ 278,602 $ 40,088

Receivables From and Payables_3

Receivables From and Payables to Brokers, Dealers and Clearing Organizations (Amounts Receivable from Brokers, Dealers, and Clearing Organizations) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Due to and from Broker-Dealers and Clearing Organizations [Abstract]
Receivable from clearing organizations	$ 262,949	$ 178,991
Deposits paid for securities borrowed	252,037	215,368
Securities failed to deliver	45,998	19,785
Receivables from brokers, dealers and clearing organizations, Total	$ 560,984	$ 414,144

Receivables From and Payables_4

Receivables From and Payables to Brokers, Dealers and Clearing Organizations (Amounts Payable to Brokers, Dealers, and Clearing Organizations) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Due to and from Broker-Dealers and Clearing Organizations [Abstract]
Deposits received from securities loaned	$ 152,255	$ 135,693
Securities failed to receive	42,296	91,636
Payable to clearing organizations	15,716	4,407
Payables to broker, dealers and clearing organizations, Total	$ 210,267	$ 231,736

Fair Value Of Financial Instrum

Fair Value Of Financial Instruments (Schedule Of Fair Value Of Investments In And Unfunded Commitments To Funds Measured At Net Asset Value) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Fair value of investments	$ 28,811	$ 32,967
Unfunded commitments	12,873	15,635
Partnership Interests [Member]
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Fair value of investments	26,025	24,261
Unfunded commitments	11,692	14,454
Money Market Funds [Member]
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Fair value of investments	1,768	4,706
Mutual Funds [Member]
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Fair value of investments	570	3,632
Private Equity Funds [Member]
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Fair value of investments	448	368
Unfunded commitments	$ 1,181	$ 1,181

Fair Value Of Financial Instr_2

Fair Value Of Financial Instruments (Fair Value Of Assets And Liabilities Measured On Recurring Basis) (Details) - USD ($) $ in Thousands		Sep. 30, 2024		Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		$ 1,351,298		$ 918,741
Available-for-sale securities, Fair Value		1,618,289	[1]	1,551,686
Investments		93,050		91,105
Cash equivalents measured at NAV		1,768		4,706
Derivative contracts, Assets		95,327	[2]	118,668	[3]
Total Assets		3,159,732		2,684,906
Financial instruments sold, but not yet purchased, at fair value		768,909		497,741
Derivative contracts, Liabilities		95,314	[4]	118,651	[5]
Liabilities, Fair Value Disclosure, Total		864,223		616,392
U.S. Government Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		19,662		32,411
Financial instruments sold, but not yet purchased, at fair value		441,703		273,653
U.S. Government Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		198,038		106,634
Available-for-sale securities, Fair Value		2,298	[1]	2,219
Financial instruments sold, but not yet purchased, at fair value				4,924
Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		96,290		19,604
Available-for-sale securities, Fair Value		133,325		177,853
Corporate Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		302,247		237,671
Available-for-sale securities, Fair Value		486,817	[1]	556,161
Financial instruments sold, but not yet purchased, at fair value		186,964		138,359
Corporate Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		58,526		52,520
Investments		25,887		22,406
Financial instruments sold, but not yet purchased, at fair value		24,221		21,576
State and Municipal Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		244,491		223,155
Available-for-sale securities, Fair Value		2,351	[1]	2,351
Auction Rate Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments		738		783
Other Investment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments		39,382	[6]	39,655	[7]
Investments in Funds and Partnerships Measured at NAV [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments		27,043		28,261
Agency Mortgage-Backed Securities [Member] | Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		369,513		159,903
Available-for-sale securities, Fair Value		925,385	[1]	746,170
Financial instruments sold, but not yet purchased, at fair value		114,969		52,664
Agency Mortgage-Backed Securities [Member] | Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value		67,898	[1]	66,671
Agency Mortgage-Backed Securities [Member] | Non-Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value		215	[1]	261
Sovereign Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		1,351,298		918,741
Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		62,531	[8]	86,843	[9]
Financial instruments sold, but not yet purchased, at fair value		1,052	[10]	6,565	[11]
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments		13,830		10,386
Total Assets		90,097		95,165
Financial instruments sold, but not yet purchased, at fair value		465,924		295,229
Liabilities, Fair Value Disclosure, Total		465,924		295,229
Level 1 [Member] | U.S. Government Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		19,662		32,411
Financial instruments sold, but not yet purchased, at fair value		441,703		273,653
Level 1 [Member] | Corporate Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned				210
Level 1 [Member] | Corporate Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		56,605		52,158
Investments		13,795		10,313
Financial instruments sold, but not yet purchased, at fair value		24,221		21,576
Level 1 [Member] | Other Investment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments		35	[6]	73	[7]
Level 1 [Member] | Sovereign Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		76,267		84,779
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value		1,618,289		1,551,686
Investments		214		330
Derivative contracts, Assets		95,327	[2]	118,668	[3]
Total Assets		2,929,201		2,420,184
Financial instruments sold, but not yet purchased, at fair value		302,267		198,676
Derivative contracts, Liabilities		95,314	[4]	118,651	[5]
Liabilities, Fair Value Disclosure, Total		397,581		317,327
Level 2 [Member] | U.S. Government Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		198,038		106,634
Available-for-sale securities, Fair Value		2,298		2,219
Financial instruments sold, but not yet purchased, at fair value				4,924
Level 2 [Member] | Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		95,155		18,106
Available-for-sale securities, Fair Value		133,325		177,853
Level 2 [Member] | Corporate Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		302,247		237,461
Available-for-sale securities, Fair Value		486,817		556,161
Financial instruments sold, but not yet purchased, at fair value		186,964		138,359
Level 2 [Member] | Corporate Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		1,921		362
Investments		214		215
Level 2 [Member] | State and Municipal Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		244,491		223,155
Available-for-sale securities, Fair Value		2,351		2,351
Level 2 [Member] | Other Investment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments	[7]			115
Level 2 [Member] | Agency Mortgage-Backed Securities [Member] | Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		369,513		159,903
Available-for-sale securities, Fair Value		925,385		746,170
Financial instruments sold, but not yet purchased, at fair value		114,969		52,664
Level 2 [Member] | Agency Mortgage-Backed Securities [Member] | Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value		67,898		66,671
Level 2 [Member] | Agency Mortgage-Backed Securities [Member] | Non-Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value		215		261
Level 2 [Member] | Sovereign Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		1,215,371		749,500
Level 2 [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		4,006	[8]	3,879	[9]
Financial instruments sold, but not yet purchased, at fair value		334	[10]	2,729	[11]
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments		51,963		52,128
Total Assets		111,623		136,590
Financial instruments sold, but not yet purchased, at fair value		718		3,836
Liabilities, Fair Value Disclosure, Total		718		3,836
Level 3 [Member] | Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		1,135		1,498
Level 3 [Member] | Corporate Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments		11,878		11,878
Level 3 [Member] | Auction Rate Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments		738		783
Level 3 [Member] | Other Investment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments		39,347	[6]	39,467	[7]
Level 3 [Member] | Sovereign Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		59,660		84,462
Level 3 [Member] | Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		58,525	[8]	82,964	[9]
Financial instruments sold, but not yet purchased, at fair value		$ 718	[10]	$ 3,836	[11]
[1] Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis. Included in other assets in the consolidated statements of financial condition. Included in other assets in the consolidated statements of financial condition. Included in accounts payable and accrued expenses in the consolidated statements of financial condition. Included in accounts payable and accrued expenses in the consolidated statements of financial condition Primarily includes private company investments. Primarily includes private company investments. Includes syndicated loans, non-agency mortgage-backed securities, and sovereign debt. Includes syndicated loans, non-agency mortgage-backed securities, and sovereign debt. Includes syndicated loans, U.S. government agency securities, and sovereign debt. Includes syndicated loans, state and municipal securities, and asset-backed securities.

Fair Value Of Financial Instr_3

Fair Value Of Financial Instruments (Schedule Of Changes In Fair Value Associated With Level 3 Financial Instruments) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2024
Asset-Backed Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 1,203	$ 1,498
Realized gains/(losses)	97	1,397
Redemptions	(165)	(1,760)
Net change	(68)	(363)
Ending Balance	1,135	1,135
Syndicated Loans [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	65,713	82,964
Unrealized gains/(losses)	146	1,694
Realized gains/(losses)	(1,460)	(3,252)
Purchases	19,118	47,546
Sales	(16,866)	(49,810)
Redemptions	(8,126)	(20,617)
Net change	(7,188)	(24,439)
Ending Balance	58,525	58,525
Corporate Equity Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	11,878	11,878
Net change	0	0
Ending Balance	11,878	11,878
Auction Rate Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	739	783
Unrealized gains/(losses)	(1)	(45)
Net change	(1)	(45)
Ending Balance	738	738
Other Investment [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	39,349	39,467
Unrealized gains/(losses)	(2)	(120)
Net change	(2)	(120)
Ending Balance	$ 39,347	$ 39,347

Fair Value Of Financial Instr_4

Fair Value Of Financial Instruments (Schedule Of Fair Value Of Financial Instruments) (Details) - USD ($) $ in Thousands		Sep. 30, 2024		Jul. 18, 2024	Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities purchased under agreements to resell		$ 665,067			$ 349,849
Financial instruments owned		1,351,298			918,741
Available-for-sale securities, Fair Value		1,618,289	[1]		1,551,686
Held-to-maturity securities	[2]	6,626,453			5,852,176
Derivative contracts, Assets		95,327	[3]		118,668	[4]
Securities sold under agreements to repurchase		657,984			417,644
Financial instruments sold, but not yet purchased, at fair value		768,909			497,741
Senior notes		616,412		$ 500,000	1,115,629
Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		1,915,767			3,361,801
Cash segregated for regulatory purposes		29,519			162,048
Securities purchased under agreements to resell		665,067			349,849
Financial instruments owned		1,351,298			918,741
Available-for-sale securities, Fair Value		1,618,289			1,551,686
Held-to-maturity securities		6,613,793			5,888,798
Bank loans		20,167,686			19,305,805
Loans held for sale		465,739			423,999
Investments		93,050			91,105
Derivative contracts, Assets	[5]	95,327			118,668
Securities sold under agreements to repurchase		657,984			417,644
Bank deposits		28,120,518			27,334,579
Financial instruments sold, but not yet purchased, at fair value		768,909			497,741
Senior notes		616,412			1,115,629
Debentures to Stifel Financial Capital Trusts		60,000			60,000
Derivative contracts	[6]	95,314			118,651
Estimated Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		1,915,767			3,361,801
Cash segregated for regulatory purposes		29,519			162,048
Securities purchased under agreements to resell		665,067			349,849
Financial instruments owned		1,351,298			918,741
Available-for-sale securities, Fair Value		1,618,289			1,551,686
Held-to-maturity securities		6,626,453			5,852,176
Bank loans		19,447,489			18,259,923
Loans held for sale		465,739			423,999
Investments		93,050			91,105
Derivative contracts, Assets	[5]	95,327			118,668
Securities sold under agreements to repurchase		657,984			417,644
Bank deposits		26,182,382			25,326,174
Financial instruments sold, but not yet purchased, at fair value		768,909			497,741
Senior notes		592,839			1,041,217
Debentures to Stifel Financial Capital Trusts		55,508			55,507
Derivative contracts	[6]	$ 95,314			$ 118,651
[1] Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis. 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. Included in other assets in the consolidated statements of financial condition. Included in other assets in the consolidated statements of financial condition. Included in other assets in the consolidated statements of financial condition. Included in accounts payable and accrued expenses in the consolidated statements of financial condition.

Fair Value Of Financial Instr_5

Fair Value Of Financial Instruments (Estimated Fair Values Of Financial Instruments Not Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Thousands		Sep. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities purchased under agreements to resell		$ 665,067	$ 349,849
Held-to-maturity securities	[1]	6,626,453	5,852,176
Securities sold under agreements to repurchase		657,984	417,644
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash		1,913,999	3,357,095
Cash segregated for regulatory purposes		29,519	162,048
Securities purchased under agreements to resell		665,067	349,849
Held-to-maturity securities		6,626,453	5,852,176
Bank loans		19,447,489	18,259,923
Loans held for sale		465,739	423,999
Securities sold under agreements to repurchase		657,984	417,644
Bank deposits		26,182,382	25,326,174
Senior notes		592,839	1,041,217
Debentures to Stifel Financial Capital Trusts		55,508	55,507
Fair Value, Measurements, Nonrecurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash		1,913,999	3,357,095
Cash segregated for regulatory purposes		29,519	162,048
Senior notes		592,839	1,041,217
Fair Value, Measurements, Nonrecurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities purchased under agreements to resell		665,067	349,849
Held-to-maturity securities		6,555,074	5,758,130
Bank loans		19,447,489	18,259,923
Loans held for sale		465,739	423,999
Securities sold under agreements to repurchase		657,984	417,644
Bank deposits		26,182,382	25,326,174
Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held-to-maturity securities		71,379	94,046
Debentures to Stifel Financial Capital Trusts		$ 55,508	$ 55,507
[1] 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.

Financial Instruments Owned a_3

Financial Instruments Owned and Financial Instruments Sold, But Not Yet Purchased (Components of Trading Securities Owned and Trading Securities Sold, But Not Yet Purchased) (Details) - USD ($) $ in Thousands		Sep. 30, 2024	Dec. 31, 2023
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments owned, at fair value		$ 1,351,298	$ 918,741
U.S. Government Agency Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments owned, at fair value		198,038	106,634
Corporate Fixed Income Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments owned, at fair value		302,247	237,671
Corporate Equity Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments owned, at fair value		58,526	52,520
State and Municipal Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments owned, at fair value		244,491	223,155
U.S. Government Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments owned, at fair value		19,662	32,411
Securities Sold, But Not yet Purchased [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Other	[1]	1,052	11,489
Financial instruments owned, at fair value		768,909	497,741
Securities Sold, But Not yet Purchased [Member] | Corporate Fixed Income Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Fixed income securities		186,964	138,359
Securities Sold, But Not yet Purchased [Member] | Corporate Equity Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments owned, at fair value		24,221	21,576
Securities Sold, But Not yet Purchased [Member] | U.S. Government Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Trading securities owned		441,703	273,653
Securities Sold, But Not yet Purchased [Member] | Mortgage-Backed Securities [Member] | Agency Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Trading securities owned		114,969	52,664
Securities Owned [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Asset-backed securities		96,290	19,604
Other	[2]	62,531	86,843
Financial instruments owned, at fair value		1,351,298	918,741
Securities Owned [Member] | U.S. Government Agency Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Trading securities owned		198,038	106,634
Securities Owned [Member] | Corporate Fixed Income Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Fixed income securities		302,247	237,671
Securities Owned [Member] | Corporate Equity Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments owned, at fair value		58,526	52,520
Securities Owned [Member] | State and Municipal Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
State and municipal securities		244,491	223,155
Securities Owned [Member] | U.S. Government Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Trading securities owned		19,662	32,411
Securities Owned [Member] | Mortgage-Backed Securities [Member] | Agency Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Trading securities owned		$ 369,513	$ 159,903
[1] Includes syndicated loans, U.S. government agency securities, sovereign debt, state and municipal securities, and asset-backed securities. Includes syndicated loans, non-agency mortgage-backed securities, and sovereign debt.

Financial Instruments Owned a_4

Financial Instruments Owned and Financial Instruments Sold, But Not Yet Purchased (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments pledged as collateral	$ 897.5	$ 746.4
Securities Owned [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments pledged as collateral	$ 563.1	$ 303.2

Available-For-Sale And Held-T_3

Available-For-Sale And Held-To-Maturity Securities (Schedule Of Amortized Cost And Fair Values Of The Available For Sale Securities And Held To Maturity Securities) (Details) - USD ($) $ in Thousands		Sep. 30, 2024		Dec. 31, 2023
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Amortized cost		$ 1,752,404		$ 1,727,630
Available for sale securities, unrealized gains	[1]	1,287		6
Available-for-sale Securities, Gross unrealized losses	[1]	(135,402)		(175,950)
Available-for-sale securities, at fair value		1,618,289	[2]	1,551,686
Held-to-maturity securities, at amortized cost	[3]	6,613,793		5,888,798
Held-to-maturity Securities, Gross unrealized gains	[1],[3]	17,893		6,387
Held-to-maturity Securities, Gross unrealized losses	[1],[3]	(5,233)		(43,009)
Held-to-maturity securities, Estimated fair value	[3]	6,626,453		5,852,176
U.S. Government Agency Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Amortized cost		2,399		2,376
Available for sale securities, unrealized gains	[1]	10		5
Available-for-sale Securities, Gross unrealized losses	[1]	(111)		(162)
Available-for-sale securities, at fair value		2,298		2,219
State and Municipal Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Amortized cost		2,350		2,350
Available for sale securities, unrealized gains	[1]	1		1
Available-for-sale Securities, Gross unrealized losses	[1]	0		0
Available-for-sale securities, at fair value		2,351		2,351
Agency Mortgage-Backed Securities [Member] | Agency Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Amortized cost		1,017,358		855,456
Available for sale securities, unrealized gains	[1]	1,202		0
Available-for-sale Securities, Gross unrealized losses	[1]	(93,175)		(109,286)
Available-for-sale securities, at fair value		925,385	[2]	746,170
Agency Mortgage-Backed Securities [Member] | Commercial [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Amortized cost		69,659		70,326
Available for sale securities, unrealized gains	[1]	0		0
Available-for-sale Securities, Gross unrealized losses	[1]	(1,761)		(3,655)
Available-for-sale securities, at fair value		67,898	[2]	66,671
Agency Mortgage-Backed Securities [Member] | Non-Agency [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Amortized cost		224		274
Available for sale securities, unrealized gains	[1]	0		0
Available-for-sale Securities, Gross unrealized losses	[1]	(9)		(13)
Available-for-sale securities, at fair value		215	[2]	261
Corporate Fixed Income Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Amortized cost		526,303		615,131
Available for sale securities, unrealized gains	[1]	0		0
Available-for-sale Securities, Gross unrealized losses	[1]	(39,486)		(58,970)
Available-for-sale securities, at fair value		486,817		556,161
Asset-Backed Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Amortized cost		134,111		181,717
Available for sale securities, unrealized gains	[1]	74		0
Available-for-sale Securities, Gross unrealized losses	[1]	(860)		(3,864)
Available-for-sale securities, at fair value		133,325	[2]	$ 177,853
Held-to-maturity securities, at amortized cost	[2]	$ 6,613,793
[1] Unrealized gains/(losses) related to available-for-sale securities are reported in accumulated other comprehensive loss. Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis. 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.

Available-For-Sale And Held-T_4

Available-For-Sale And Held-To-Maturity Securities (Narrative) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) Security	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) Security	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Other Than Temporary Impairment Credit Losses Recognized In Earnings [Line Items]
Debt Securities Available For Sale Allowance For CreditLoss	$ 0		$ 0
Accrued interest receivable	100,900,000		100,900,000		$ 94,000,000
Proceeds from sale of available-for-sale securities	0	$ 0	0	$ 2,400,000
Net realized gains (loss) resulting from sale of available-for-sale securities				$ 7,600,000
Financial instruments pledged as collateral	$ 897,500,000		$ 897,500,000		746,400,000
Number of available for sale securities whose amortized costs exceeded their fair values | Security	243		243
Available-for-sale Securities, Continuous	$ 135,402,000		$ 135,402,000
Available-for-sale Securities, Continuous Unrealized	135,104,000		135,104,000
Available-for-sale Securities, Continuous	$ 1,353,173,000		$ 1,353,173,000
Percentage of available-for-sale portfolio	83.60%		83.60%
Pledged [Member]
Other Than Temporary Impairment Credit Losses Recognized In Earnings [Line Items]
Trading securities pledged	$ 1,800,000,000		$ 1,800,000,000		1,300,000,000
Other Assets [Member]
Other Than Temporary Impairment Credit Losses Recognized In Earnings [Line Items]
Accrued interest receivable	$ 99,100,000		$ 99,100,000		$ 95,700,000

Available-For-Sale And Held-T_5

Available-For-Sale And Held-To-Maturity Securities (Schedule Of Amortized Cost And Fair Values Of Debt Securities By Contractual Maturity) (Details) - USD ($) $ in Thousands		Sep. 30, 2024		Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Available-for-sale Securities, debt maturities, within one year, Amortized Cost		$ 85,543		$ 105,389
Available-for-sale Securities, debt maturities, after one year through three years, Amortized Cost		128,649		184,975
Available-for-sale Securities, debt maturities, after three year through five years, Amortized Cost		26,268		38,462
Available-for-sale Securities, debt maturities, after five year through ten years, Amortized Cost		400,645		448,931
Available-for-sale Securities, debt maturities, after ten years, Amortized Cost		1,111,299		949,873
Available-for-sale Securities, Amortized cost		1,752,404		1,727,630
Available-for-sale Securities, debt maturities, within one year, Fair Value		84,944	[1]	104,113
Available-for-sale Securities, debt maturities, after one year through three years, Fair Value		123,743		174,827
Available-for-sale Securities, debt maturities, after three year through five years, Fair Value		24,226		34,316
Available-for-sale Securities, debt maturities, after five year through ten years, fair value		364,789	[1]	398,624
Availably-for-sale Securities, debt maturities, after ten years, Fair Value		1,020,587	[1]	839,806
Available-for-sale Securities, debt maturities, Fair Value		1,618,289	[1]	1,551,686
Held-to-maturity Securities, debt maturities, after three through five years, Amortized Cost		26,584		0
Held-to-maturity Securities, debt maturities, after five through ten years, Amortized Cost		2,916,495	[1]	2,754,817
Held-to-maturity Securities, debt maturities, after ten years, Amortized Cost		3,670,714	[1]	3,133,981
Held-to-maturity Securities, Amortized cost	[2]	6,613,793		5,888,798
Held-to-maturity Securities, debt maturities, after three through five years, Fair Value		26,598		0
Held-to-maturity Securities, debt maturities, after five through ten years, Fair Value		2,922,027		2,740,154
Held-to-maturity Securities, debt maturities, after ten years, Fair Value		3,677,828		3,112,022
Held-to-maturity Securities, debt maturities, Fair Value	[2]	$ 6,626,453		$ 5,852,176
[1] Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis. 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.

Available-For-Sale And Held-T_6

Available-For-Sale And Held-To-Maturity Securities (Contractual Maturities) (Details) - USD ($) $ in Thousands		Sep. 30, 2024		Dec. 31, 2023
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, debt maturities, within one year, Fair Value		$ 84,944	[1]	$ 104,113
Available-for-sale Securities, debt maturities, after one year through five, Fair Value	[1]	147,969
Available-for-sale Securities, debt maturities, after five year through ten years, fair value		364,789	[1]	398,624
Availably-for-sale Securities, debt maturities, after ten years, Fair Value		1,020,587	[1]	839,806
Available-for-sale Securities, debt maturities, Fair Value		1,618,289	[1]	1,551,686
Held-to-maturity Securities, debt maturities, after one year through five, Amortized Cost	[1]	26,584
Held-to-maturity Securities, debt maturities, after five year through ten, Amortized Cost		2,916,495	[1]	2,754,817
Held-to-maturity Securities, debt maturities, after ten years, Amortized Cost		3,670,714	[1]	3,133,981
Held-to-maturity Securities, Amortized cost	[2]	6,613,793		5,888,798
U.S. Government Agency Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, debt maturities, within one year, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after one year through five, Fair Value	[1]	2,298
Available-for-sale Securities, debt maturities, after five year through ten years, fair value	[1]	0
Availably-for-sale Securities, debt maturities, after ten years, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, Fair Value		2,298	[1]	2,219
State and Municipal Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, debt maturities, within one year, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after one year through five, Fair Value	[1]	2,351
Available-for-sale Securities, debt maturities, after five year through ten years, fair value	[1]	0
Availably-for-sale Securities, debt maturities, after ten years, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, Fair Value		2,351	[1]	2,351
Corporate Fixed Income Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, debt maturities, within one year, Fair Value	[1]	84,944
Available-for-sale Securities, debt maturities, after one year through five, Fair Value	[1]	143,096
Available-for-sale Securities, debt maturities, after five year through ten years, fair value	[1]	258,777
Availably-for-sale Securities, debt maturities, after ten years, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, Fair Value		486,817	[1]	556,161
Agency Mortgage-Backed Securities [Member] | Agency Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, debt maturities, within one year, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after one year through five, Fair Value	[1]	224
Available-for-sale Securities, debt maturities, after five year through ten years, fair value	[1]	80,761
Availably-for-sale Securities, debt maturities, after ten years, Fair Value	[1]	844,400
Available-for-sale Securities, debt maturities, Fair Value		925,385	[1]	746,170
Agency Mortgage-Backed Securities [Member] | Commercial [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, debt maturities, within one year, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after one year through five, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after five year through ten years, fair value	[1]	0
Availably-for-sale Securities, debt maturities, after ten years, Fair Value	[1]	67,898
Available-for-sale Securities, debt maturities, Fair Value		67,898	[1]	66,671
Agency Mortgage-Backed Securities [Member] | Non-Agency [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, debt maturities, within one year, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after one year through five, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after five year through ten years, fair value	[1]	215
Availably-for-sale Securities, debt maturities, after ten years, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, Fair Value		215	[1]	261
Asset-Backed Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, debt maturities, within one year, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after one year through five, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after five year through ten years, fair value	[1]	25,036
Availably-for-sale Securities, debt maturities, after ten years, Fair Value	[1]	108,289
Available-for-sale Securities, debt maturities, Fair Value		133,325	[1]	$ 177,853
Held-to-maturity Securities, Amortized cost	[1]	$ 6,613,793
[1] Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis. 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.

Available-For-Sale And Held-T_7

Available-For-Sale And Held-To-Maturity Securities (Schedule Of Gross Unrealized Losses And The Estimated Fair Value By Length Of Time In A Loss Position) (Details) $ in Thousands	Sep. 30, 2024 USD ($)
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	$ (298)
Available-for-sale Securities, Estimated fair value, Less than 12 months	20,638
Available-for-sale Securities, Gross unrealized losses, 12 months or more	(135,104)
Available-for-sale Securities, Estimated fair value, 12 months or more	1,332,535
Available-for-sale Securities, Gross unrealized losses, Total	(135,402)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	1,353,173
U.S. Government Agency Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	0
Available-for-sale Securities, Estimated fair value, Less than 12 months	0
Available-for-sale Securities, Gross unrealized losses, 12 months or more	(111)
Available-for-sale Securities, Estimated fair value, 12 months or more	1,839
Available-for-sale Securities, Gross unrealized losses, Total	(111)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	1,839
Corporate Fixed Income Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	0
Available-for-sale Securities, Estimated fair value, Less than 12 months	0
Available-for-sale Securities, Gross unrealized losses, 12 months or more	(39,486)
Available-for-sale Securities, Estimated fair value, 12 months or more	486,817
Available-for-sale Securities, Gross unrealized losses, Total	(39,486)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	486,817
Mortgage-Backed Securities [Member] | Agency Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	(281)
Available-for-sale Securities, Estimated fair value, Less than 12 months	12,388
Available-for-sale Securities, Gross unrealized losses, 12 months or more	(92,894)
Available-for-sale Securities, Estimated fair value, 12 months or more	682,765
Available-for-sale Securities, Gross unrealized losses, Total	(93,175)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	695,153
Mortgage-Backed Securities [Member] | Commercial [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	0
Available-for-sale Securities, Estimated fair value, Less than 12 months	0
Available-for-sale Securities, Gross unrealized losses, 12 months or more	(1,761)
Available-for-sale Securities, Estimated fair value, 12 months or more	67,898
Available-for-sale Securities, Gross unrealized losses, Total	(1,761)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	67,898
Mortgage-Backed Securities [Member] | Non Agency Mortgage Backed Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	0
Available-for-sale Securities, Estimated fair value, Less than 12 months	0
Available-for-sale Securities, Gross unrealized losses, 12 months or more	(9)
Available-for-sale Securities, Estimated fair value, 12 months or more	215
Available-for-sale Securities, Gross unrealized losses, Total	(9)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	215
Asset-Backed Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	(17)
Available-for-sale Securities, Estimated fair value, Less than 12 months	8,250
Available-for-sale Securities, Gross unrealized losses, 12 months or more	(843)
Available-for-sale Securities, Estimated fair value, 12 months or more	93,001
Available-for-sale Securities, Gross unrealized losses, Total	(860)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	$ 101,251

Available-For-Sale And Held-T_8

Available-For-Sale And Held-To-Maturity Securities (Schedule Of Amortized Cost Of Held-To-Maturity Securities By Credit Quality Indicator) (Details) - USD ($) $ in Thousands		Sep. 30, 2024	Dec. 31, 2023
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity securities, at amortized cost	[1]	$ 6,613,793	$ 5,888,798
Asset-Backed Securities [Member]
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity securities, at amortized cost	[2]	6,613,793
Asset-Backed Securities [Member] | AAA [Member]
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity securities, at amortized cost		2,697,543
Asset-Backed Securities [Member] | AA [Member]
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity securities, at amortized cost		3,871,408
Asset-Backed Securities [Member] | NR [Member]
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity securities, at amortized cost		44,000
Asset-Backed Securities [Member] | C [Member]
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity securities, at amortized cost		$ 842
[1] 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. Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis.

Bank Loans (Schedule of Balance

Bank Loans (Schedule of Balance and Associated Percentage of Each Major Loan Category in Bank Loan Portfolio) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total risk category of loan portfolio	$ 20,349,581		$ 19,441,467
Loans in process/(unapplied loan payments), net	(38,825)		1,108
Unamortized loan fees, net	(5,720)		(8,478)
Allowance for loan losses	(137,350)	$ (135,114)	(128,292)	$ (135,797)	$ (122,681)	$ (111,653)
Loans held for investment, net	$ 20,167,686		$ 19,305,805
Gross bank loans, Percent	100%		100%
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total risk category of loan portfolio	$ 8,406,932		$ 8,047,647
Allowance for loan losses	$ (11,270)	(11,242)	$ (13,855)	(14,607)	(14,413)	(20,441)
Gross bank loans, Percent	41.30%		41.40%
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total risk category of loan portfolio	$ 3,896,824		$ 3,566,987
Allowance for loan losses	$ (79,862)	(76,354)	$ (67,077)	(74,659)	(66,377)	(54,143)
Gross bank loans, Percent	19.10%		18.30%
Fund Banking [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total risk category of loan portfolio	$ 3,762,960		$ 3,633,126
Allowance for loan losses	$ (10,537)	(12,179)	$ (10,173)	(11,518)	(12,178)	(11,711)
Gross bank loans, Percent	18.50%		18.70%
Securities-Based Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total risk category of loan portfolio	$ 2,273,246		$ 2,306,455
Allowance for loan losses	$ (2,853)	(2,813)	$ (3,035)	(3,018)	(3,086)	(3,157)
Gross bank loans, Percent	11.20%		11.90%
Construction And Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total risk category of loan portfolio	$ 1,219,787		$ 1,034,370
Allowance for loan losses	$ (19,775)	(16,379)	$ (11,817)	(11,500)	(12,645)	(8,568)
Gross bank loans, Percent	6%		5.30%
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total risk category of loan portfolio	$ 565,686		$ 660,631
Allowance for loan losses	$ (12,315)	(15,312)	$ (21,386)	(19,866)	(13,429)	(12,897)
Gross bank loans, Percent	2.80%		3.40%
Home Equity Lines Of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total risk category of loan portfolio	$ 170,732		$ 136,270
Allowance for loan losses	$ (219)	(362)	$ (371)	(195)	(168)	(364)
Gross bank loans, Percent	0.80%		0.70%
Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total risk category of loan portfolio	$ 53,414		$ 55,981
Allowance for loan losses	$ (519)	$ (473)	$ (578)	$ (434)	$ (385)	$ (372)
Gross bank loans, Percent	0.30%		0.30%

Bank Loans (Narrative) (Details

Bank Loans (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans held for sale	$ 465,739		$ 465,739		$ 423,999
Accrued interest receivable	$ 100,900		$ 100,900		$ 94,000
Collateralized loan portfolio	96.80%		96.80%		97%
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans held for sale	$ 465,700		$ 465,700		$ 424,000
Federal Reserve Discount Window [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans pledged as collateral	2,300,000		2,300,000
Residential Real Estate [Member] | Asset Pledged as Collateral [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans pledged as collateral	7,800,000		7,800,000		7,400,000
Other Income [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gains (losses) recognized from sale of loans	(100)	$ (200)	(3,000)	$ (2,800)
Accounting Standards Update 2016-13 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses	9,200	13,400	20,600	24,900
Credit Loss Reserves Net	5,300	10,000	13,500	22,700
Accounting Standards Update 2016-13 [Member] | Unfunded Commitment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowances for unfunded credit commitments	3,900		7,400
Allowance For Unfunded Credit Commitment		$ 3,400		$ 2,200
Accounting Standards Update 2016-13 [Member] | Employee Retention Awards [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Credit Loss Reserves Net			300
Stifel Bancorp [Member] | Executive Officers and Directors of Certain Affiliated Entities [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding amount	$ 41,800		$ 41,800		$ 46,000

Bank Loans (Activity in the All

Bank Loans (Activity in the Allowance for Loan Losses by Portfolio Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	$ 135,114	$ 122,681	$ 128,292	$ 111,653
Provision	9,208	13,418	20,598	24,911
Charge-offs	(6,972)	(302)	(12,473)	(920)
Recoveries			933	153
Ending Balance	137,350	135,797	137,350	135,797
Commercial and Industrial [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	76,354	66,377	67,077	54,143
Provision	10,321	8,584	22,476	21,283
Charge-offs	(6,813)	(302)	(10,624)	(920)
Recoveries			933	153
Ending Balance	79,862	74,659	79,862	74,659
Commercial Real Estate [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	15,312	13,429	21,386	12,897
Provision	(2,997)	6,437	(7,381)	6,969
Charge-offs			(1,690)
Ending Balance	12,315	19,866	12,315	19,866
Residential Real Estate [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	11,242	14,413	13,855	20,441
Provision	28	194	(2,585)	(5,834)
Ending Balance	11,270	14,607	11,270	14,607
Fund Banking [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	12,179	12,178	10,173	11,711
Provision	(1,642)	(660)	364	(193)
Ending Balance	10,537	11,518	10,537	11,518
Construction And Land [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	16,379	12,645	11,817	8,568
Provision	3,396	(1,145)	7,958	2,932
Ending Balance	19,775	11,500	19,775	11,500
Securities-Based Loans [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	2,813	3,086	3,035	3,157
Provision	40	(68)	(182)	(139)
Ending Balance	2,853	3,018	2,853	3,018
Home Equity Lines Of Credit [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	362	168	371	364
Provision	(143)	27	(152)	(169)
Ending Balance	219	195	219	195
Other [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	473	385	578	372
Provision	205	49	100	62
Charge-offs	(159)		(159)
Ending Balance	$ 519	$ 434	$ 519	$ 434

Bank Loans (Aging of the Record

Bank Loans (Aging of the Recorded Investment in Past Due Loans) (Details) - USD ($)		Sep. 30, 2024		Dec. 31, 2023
Financing Receivable Recorded Investment Past Due [Line Items]
Total		$ 20,349,581,000		$ 19,441,467,000
Non-accrual		128,584,000	[1]	42,366,000	[2]
Nonperforming loans with no allowance		15,538,000	[1]	3,090,000	[2]
Total		144,122,000	[1]	45,456,000	[2]
Loans past due 90 days and still accruing interest		0		0
Financial Asset, Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		78,556,000		22,043,000
30 - 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		73,861,000		15,927,000
90 or More Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		4,695,000		6,116,000
Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		20,271,025,000		19,419,424,000
Residential Real Estate [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		8,406,932,000		8,047,647,000
Non-accrual		1,251,000	[1]	3,090,000	[2]
Nonperforming loans with no allowance		1,705,000	[1]	1,000,000	[2]
Total		2,956,000	[1]	4,090,000	[2]
Residential Real Estate [Member] | Financial Asset, Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		15,823,000		19,257,000
Residential Real Estate [Member] | 30 - 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		12,597,000		15,312,000
Residential Real Estate [Member] | 90 or More Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		3,226,000		3,945,000
Residential Real Estate [Member] | Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		8,391,109,000		8,028,390,000
Commercial and Industrial [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		3,896,824,000		3,566,987,000
Non-accrual	[1]	34,813,000
Nonperforming loans with no allowance		13,833,000	[1]	2,022,000	[2]
Total		57,575,000	[1]	2,022,000	[2]
Commercial and Industrial [Member] | Financial Asset, Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		60,901,000		2,022,000
Commercial and Industrial [Member] | 30 - 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		60,901,000
Commercial and Industrial [Member] | 90 or More Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total				2,022,000
Commercial and Industrial [Member] | Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		3,835,923,000		3,564,965,000
Fund Banking [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		3,762,960,000		3,633,126,000
Fund Banking [Member] | Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		3,762,960,000		3,633,126,000
Securities-Based Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		2,273,246,000		2,306,455,000
Nonperforming loans with no allowance	[2]			3,000
Total	[2]			3,000
Securities-Based Loans [Member] | Financial Asset, Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		850,000		3,000
Securities-Based Loans [Member] | 90 or More Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		850,000		3,000
Securities-Based Loans [Member] | Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		2,272,396,000		2,306,452,000
Commercial Real Estate [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		565,686,000		660,631,000
Non-accrual		43,742,000	[1]	39,195,000	[2]
Total		34,813,000	[1]	39,195,000	[2]
Commercial Real Estate [Member] | Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		565,686,000		660,631,000
Construction And Land [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		1,219,787,000		1,034,370,000
Non-accrual	[1]	48,349,000
Total	[1]	48,349,000
Construction And Land [Member] | Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		1,219,787,000		1,034,370,000
Home Equity Lines Of Credit [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		170,732,000		136,270,000
Non-accrual		378,000	[1]	22,000	[2]
Nonperforming loans with no allowance	[2]			65,000
Total		378,000	[1]	87,000	[2]
Home Equity Lines Of Credit [Member] | Financial Asset, Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		873,000		657,000
Home Equity Lines Of Credit [Member] | 30 - 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		305,000		570,000
Home Equity Lines Of Credit [Member] | 90 or More Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		568,000		87,000
Home Equity Lines Of Credit [Member] | Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		169,859,000		135,613,000
Other [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		53,414,000		55,981,000
Non-accrual		51,000	[1]	59,000	[2]
Total		51,000	[1]	59,000	[2]
Other [Member] | Financial Asset, Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		109,000		104,000
Other [Member] | 30 - 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		58,000		45,000
Other [Member] | 90 or More Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		51,000		59,000
Other [Member] | Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total		$ 53,305,000		$ 55,877,000
[1] There were no loans past due 90 days and still accruing interest at September 30, 2024. There were no loans past due 90 days and still accruing interest at December 31, 2023. In the normal course of business, we may modify the original terms of a loan agreement. In certain circumstances, we may agree to modify the original terms of a loan agreement to a borrower experiencing financial difficulty, which may include a borrower in default, financial distress, bankruptcy or other circumstances. Modifications of loans to borrowers experiencing financial difficulty are designed to reduce our loss exposure while providing borrowers with an opportunity to work through financial difficulties, often to avoid foreclosure or bankruptcy. Loan modifications to borrowers experiencing financial difficulty typically involve principal forgiveness, an interest rate reduction, an other-than-insignificant payment delay (i.e., payment or maturity forbearance greater than six months), or a term extension, or any combination thereof. Modified loans to borrowers experiencing financial difficulty are subject to our nonaccrual policies. Loans to borrowers experiencing financial difficulty which were modified during the three and nine months ended September 30, 2024 and 2023 were not significant. The gross interest income related to impaired loans, which would have been recorded, had these loans been current in accordance with their original terms, and the interest income recognized on these loans during the three and nine months ended September 30, 2024 and 2023, were insignificant to the consolidated financial statements. Credit quality indicators As of September 30, 2024, bank loans were primarily extended to non-investment grade borrowers. Substantially all of these loans align with the U.S. Federal bank regulatory agencies’ definition of Pass. Loans meet the definition of Pass when they are performing and do not demonstrate adverse characteristics that are likely to result in a credit loss. A loan is determined to be impaired when principal or interest becomes 90 days past due or when collection becomes uncertain. At the time a loan is determined to be impaired, the accrual of interest and amortization of deferred loan origination fees is discontinued (“nonaccrual status”), and any accrued and unpaid interest income is reversed. We closely monitor economic conditions and loan performance trends to manage and evaluate our exposure to credit risk. Trends in delinquency ratios are an indicator, among other considerations, of credit risk within our loan portfolio. The level of nonperforming assets represents another indicator of the potential for future credit losses. Accordingly, key metrics we track and use in evaluating the credit quality of our loan portfolio include delinquency and nonperforming asset rates, as well as charge-off rates and our internal risk ratings of the loan portfolio. In general, we are a secured lender. At September 30, 2024 and December 31, 2023, 96.8 % and 97.0 % of our loan portfolio was collateralized, respectively. Collateral is required in accordance with the normal credit evaluation process based upon the creditworthiness of the customer and the credit risk associated with the particular transaction. The Company uses the following definitions for risk ratings: Pass. A credit exposure rated pass has a continued expectation of timely repayment, all obligations of the borrower are current, and the obligor complies with material terms and conditions of the lending agreement. Special Mention. Extensions of credit that have potential weakness that deserve management’s close attention, and if left uncorrected may, at some future date, result in the deterioration of the repayment prospects or collateral position. Substandard. Obligor has a well-defined weakness that jeopardizes the repayment of the debt and has a high probability of payment default with the distinct possibility that the Company will sustain some loss if noted deficiencies are not corrected. Doubtful. Inherent weakness in the exposure makes the collection or repayment in full, based on existing facts, conditions and circumstances, highly improbable, and the amount of loss is uncertain. Substandard loans are regularly reviewed for impairment. Doubtful loans are considered impaired. When a loan is impaired the impairment is measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate, or as a practical expedient, the observable market price of the loan or the fair value of the collateral if the loan is collateral dependent. Based on the most recent analysis performed, the risk category of our loan portfolio was as follows (in thousands) : As of September 30, 2024 Pass Special Mention Substandard Doubtful Total Residential real estate $ 8,401,700 $ 2,006 $ 3,226 $ — $ 8,406,932 Commercial and industrial 3,526,625 140,345 185,342 44,512 3,896,824 Fund banking 3,762,960 — — — 3,762,960 Securities-based loans 2,273,246 — — — 2,273,246 Construction and land 1,171,438 — — 48,349 1,219,787 Commercial real estate 462,443 11,980 56,450 34,813 565,686 Home equity lines of credit 170,070 94 568 — 170,732 Other 53,338 76 — — 53,414 Total $ 19,821,820 $ 154,501 $ 245,586 $ 127,674 $ 20,349,581

Bank Loans (Risk Category of Lo

Bank Loans (Risk Category of Loan Portfolio) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	$ 20,349,581	$ 19,441,467
Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	19,821,820	18,943,697
Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	154,501	211,686
Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	245,586	284,000
Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	127,674	2,084
Residential Real Estate [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	8,406,932	8,047,647
Residential Real Estate [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	8,401,700	8,042,246
Residential Real Estate [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	2,006	1,456
Residential Real Estate [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	3,226	3,945
Commercial and Industrial [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	3,896,824	3,566,987
Commercial and Industrial [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	3,526,625	3,294,891
Commercial and Industrial [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	140,345	89,302
Commercial and Industrial [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	185,342	180,772
Commercial and Industrial [Member] | Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	44,512	2,022
Fund Banking [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	3,762,960	3,633,126
Fund Banking [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	3,762,960	3,633,126
Securities-Based Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	2,273,246	2,306,455
Securities-Based Loans [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	2,273,246	2,306,452
Securities-Based Loans [Member] | Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio		3
Construction And Land [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	1,219,787	1,034,370
Construction And Land [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	1,171,438	963,083
Construction And Land [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio		71,287
Construction And Land [Member] | Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	48,349
Commercial Real Estate [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	565,686	660,631
Commercial Real Estate [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	462,443	512,171
Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	11,980	49,264
Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	56,450	99,196
Commercial Real Estate [Member] | Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	34,813
Home Equity Lines Of Credit [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	170,732	136,270
Home Equity Lines Of Credit [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	170,070	135,806
Home Equity Lines Of Credit [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	94	377
Home Equity Lines Of Credit [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	568	87
Other [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	53,414	55,981
Other [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	53,338	55,922
Other [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio	$ 76
Other [Member] | Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Total risk category of loan portfolio		$ 59

Bank Loans (Schedule of Term Lo

Bank Loans (Schedule of Term Loans Amortized Cost Basis by Origination Year and Revolving Cost Amortized Cost Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 20,349,581	$ 19,441,467
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	8,406,932	8,047,647
Residential Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Four [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	872,201
Residential Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,105,958
Residential Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,508,051
Residential Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,194,021
Residential Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	859,573
Residential Real Estate [Member] | Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	867,128
Residential Real Estate [Member] | Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,896,824	3,566,987
Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Four [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	648,273
Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	595,993
Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	889,338
Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	756,496
Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	79,927
Commercial and Industrial [Member] | Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	127,077
Commercial and Industrial [Member] | Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	799,720
Fund Banking [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,762,960	3,633,126
Fund Banking [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Four [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,200
Fund Banking [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	790
Fund Banking [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	41,544
Fund Banking [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	334
Fund Banking [Member] | Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,719,092
Securities-Based Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,273,246	2,306,455
Securities-Based Loans [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Four [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	8,115
Securities-Based Loans [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	14,491
Securities-Based Loans [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,147
Securities-Based Loans [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,123
Securities-Based Loans [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	51,807
Securities-Based Loans [Member] | Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	36,572
Securities-Based Loans [Member] | Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,157,991
Construction And Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,219,787	1,034,370
Construction And Land [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Four [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,224
Construction And Land [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	208,373
Construction And Land [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	596,763
Construction And Land [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	197,077
Construction And Land [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	151,861
Construction And Land [Member] | Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	61,489
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	565,686	660,631
Commercial Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	33,736
Commercial Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	328,709
Commercial Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	99,694
Commercial Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	29,991
Commercial Real Estate [Member] | Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	73,556
Home Equity Lines Of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	170,732	136,270
Home Equity Lines Of Credit [Member] | Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	170,732
Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	53,414	55,981
Other [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Four [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,492
Other [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,991
Other [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	10,000
Other [Member] | Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	24,954
Other [Member] | Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	10,977
Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	19,821,820	18,943,697
Pass [Member] | Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	8,401,700	8,042,246
Pass [Member] | Residential Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Four [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	872,201
Pass [Member] | Residential Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,105,958
Pass [Member] | Residential Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,505,122
Pass [Member] | Residential Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,192,501
Pass [Member] | Residential Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	859,573
Pass [Member] | Residential Real Estate [Member] | Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	866,345
Pass [Member] | Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,526,625	3,294,891
Pass [Member] | Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Four [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	646,852
Pass [Member] | Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	585,845
Pass [Member] | Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	799,469
Pass [Member] | Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	652,190
Pass [Member] | Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	65,669
Pass [Member] | Commercial and Industrial [Member] | Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	123,823
Pass [Member] | Commercial and Industrial [Member] | Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	652,777
Pass [Member] | Fund Banking [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,762,960	3,633,126
Pass [Member] | Fund Banking [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Four [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,200
Pass [Member] | Fund Banking [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	790
Pass [Member] | Fund Banking [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	41,544
Pass [Member] | Fund Banking [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	334
Pass [Member] | Fund Banking [Member] | Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,719,092
Pass [Member] | Securities-Based Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,273,246	2,306,452
Pass [Member] | Securities-Based Loans [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Four [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	8,115
Pass [Member] | Securities-Based Loans [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	14,491
Pass [Member] | Securities-Based Loans [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,147
Pass [Member] | Securities-Based Loans [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,123
Pass [Member] | Securities-Based Loans [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	51,807
Pass [Member] | Securities-Based Loans [Member] | Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	36,572
Pass [Member] | Securities-Based Loans [Member] | Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,157,991
Pass [Member] | Construction And Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,171,438	963,083
Pass [Member] | Construction And Land [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Four [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,224
Pass [Member] | Construction And Land [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	208,373
Pass [Member] | Construction And Land [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	596,763
Pass [Member] | Construction And Land [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	197,077
Pass [Member] | Construction And Land [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	151,861
Pass [Member] | Construction And Land [Member] | Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	13,140
Pass [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	462,443	512,171
Pass [Member] | Commercial Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	33,736
Pass [Member] | Commercial Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	260,279
Pass [Member] | Commercial Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	64,881
Pass [Member] | Commercial Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	29,991
Pass [Member] | Commercial Real Estate [Member] | Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	73,556
Pass [Member] | Home Equity Lines Of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	170,070	135,806
Pass [Member] | Home Equity Lines Of Credit [Member] | Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	170,070
Pass [Member] | Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	53,338	55,922
Pass [Member] | Other [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Four [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,492
Pass [Member] | Other [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,991
Pass [Member] | Other [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	10,000
Pass [Member] | Other [Member] | Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	24,954
Pass [Member] | Other [Member] | Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	10,901
Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	154,501	211,686
Special Mention [Member] | Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,006	1,456
Special Mention [Member] | Residential Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	574
Special Mention [Member] | Residential Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,432
Special Mention [Member] | Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	140,345	89,302
Special Mention [Member] | Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Four [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,421
Special Mention [Member] | Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	10,148
Special Mention [Member] | Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	29,331
Special Mention [Member] | Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	27,867
Special Mention [Member] | Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	14,258
Special Mention [Member] | Commercial and Industrial [Member] | Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	57,320
Special Mention [Member] | Construction And Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		71,287
Special Mention [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	11,980	49,264
Special Mention [Member] | Commercial Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	11,980
Special Mention [Member] | Home Equity Lines Of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	94	377
Special Mention [Member] | Home Equity Lines Of Credit [Member] | Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	94
Special Mention [Member] | Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	76
Special Mention [Member] | Other [Member] | Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	76
Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	245,586	284,000
Substandard [Member] | Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,226	3,945
Substandard [Member] | Residential Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,355
Substandard [Member] | Residential Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	88
Substandard [Member] | Residential Real Estate [Member] | Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	783
Substandard [Member] | Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	185,342	180,772
Substandard [Member] | Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	55,406
Substandard [Member] | Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	49,249
Substandard [Member] | Commercial and Industrial [Member] | Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,254
Substandard [Member] | Commercial and Industrial [Member] | Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	80,687
Substandard [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	56,450	99,196
Substandard [Member] | Commercial Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	56,450
Substandard [Member] | Home Equity Lines Of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	568	87
Substandard [Member] | Home Equity Lines Of Credit [Member] | Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	568
Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	127,674	2,084
Doubtful [Member] | Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	44,512	2,022
Doubtful [Member] | Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	5,132
Doubtful [Member] | Commercial and Industrial [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	27,190
Doubtful [Member] | Commercial and Industrial [Member] | Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	8,936
Doubtful [Member] | Securities-Based Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		3
Doubtful [Member] | Construction And Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	48,349
Doubtful [Member] | Construction And Land [Member] | Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	48,349
Doubtful [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	34,813
Doubtful [Member] | Commercial Real Estate [Member] | Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 34,813
Doubtful [Member] | Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total		$ 59

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets (Carrying Amount Of Goodwill And Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			$ 1,388,243
Goodwill, Adjustments			5,848
Goodwill, Ending balance	$ 1,394,091		1,394,091
Intangible assets, Beginning balance			133,279
Intangible assets, Adjustments			1,598
Intangible assets, Amortization	(5,900)	$ (4,800)	(17,710)	$ (13,872)
Intangible assets, Ending balance	117,167		117,167
Global Wealth Management [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			335,009
Goodwill, Adjustments			0
Goodwill, Ending balance	335,009		335,009
Intangible assets, Beginning balance			28,687
Intangible assets, Adjustments			0
Intangible assets, Amortization			(3,305)
Intangible assets, Ending balance	25,382		25,382
Institutional Group [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			1,053,234
Goodwill, Adjustments			5,848
Goodwill, Ending balance	1,059,082		1,059,082
Intangible assets, Beginning balance			104,592
Intangible assets, Adjustments			1,598
Intangible assets, Amortization			(14,405)
Intangible assets, Ending balance	$ 91,785		$ 91,785

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Aug. 01, 2024	Dec. 31, 2023
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill	$ 1,394,091		$ 1,394,091			$ 1,388,243
Intangible assets	117,167		117,167			133,279
Amortization of intangible assets	5,900	$ 4,800	17,710	$ 13,872
Institutional Group [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill	1,059,082		1,059,082			1,053,234
Intangible assets	$ 91,785		91,785			$ 104,592
Amortization of intangible assets			$ 14,405
Institutional Group [Member] | Acquired Business [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill					$ 7,500
Intangible assets					$ 7,500
Customer Relationships [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets	9 years 7 months 6 days		9 years 7 months 6 days
Trade Names [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets	6 years 7 months 6 days		6 years 7 months 6 days
Non-Compete Agreements [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets	4 years 1 month 6 days		4 years 1 month 6 days
Acquired Technology [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets	1 year 9 months 18 days		1 year 9 months 18 days
Core Deposits [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets	8 months 12 days		8 months 12 days
Investment Banking Backlog [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets	4 years 2 months 12 days		4 years 2 months 12 days

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 306,221	$ 304,387
Accumulated Amortization	189,054	171,108
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	229,320	227,486
Accumulated Amortization	133,214	122,971
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	30,359	30,359
Accumulated Amortization	23,477	22,366
Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	18,314	18,314
Accumulated Amortization	7,635	3,447
Non-Compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	10,700	10,700
Accumulated Amortization	9,314	8,421
Investment Banking Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	8,913	8,913
Accumulated Amortization	6,935	5,758
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	8,615	8,615
Accumulated Amortization	$ 8,479	$ 8,145

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets (Amortization Expense In Future Periods) (Details) $ in Thousands	Sep. 30, 2024 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2024	$ 5,558
2025	21,109
2026	17,005
2027	13,308
2028	12,350
Thereafter	45,719
Future Amortization Expense Total	$ 115,049

Borrowings and Federal Home L_2

Borrowings and Federal Home Loan Bank Advances (Narrative) (Details) $ in Thousands		9 Months Ended
	Sep. 27, 2023 USD ($)	Sep. 30, 2024 USD ($) Item
Short-term Debt [Line Items]
Uncommitted secured lines of credit		$ 880,000
Number of banks | Item		4
Daily borrowings under our uncommitted secured lines		$ 70,000
Compensating balances		0
Federal Home Loan Bank advances		0
Credit Agreement [Member]
Short-term Debt [Line Items]
Termination of committed revolving credit facility	$ 500,000
Credit agreement maturity date	Sep. 27, 2028
Committed revolving credit facility with bank and broker dealer - subsidiary	$ 750,000
Outstanding credit facility		0
Company Owned Securities [Member]
Short-term Debt [Line Items]
Uncommitted secured lines of credit		$ 0
Federal Home Loan Bank advances [Member]
Short-term Debt [Line Items]
Weighted average interest rate on borrowings		2.15%

Senior Notes (Summary of Senior

Senior Notes (Summary of Senior Notes) (Details) - USD ($) $ in Thousands		Sep. 30, 2024	Dec. 31, 2023	May 31, 2020	Oct. 31, 2017	Jul. 31, 2014
Debt Instrument [Line Items]
Long-term Debt, gross		$ 625,000	$ 1,125,000
Debt issuance costs, net		(8,588)	(9,371)
Senior notes, net		616,412	1,115,629
Senior notes 4.25% due 2024 [Member]
Debt Instrument [Line Items]
Long-term Debt, gross	[1]	0	500,000
Senior notes, net						$ 300,000
Senior notes 4.00% due 2030 [Member]
Debt Instrument [Line Items]
Long-term Debt, gross	[2]	400,000	400,000
Senior notes, net				$ 400,000
Senior notes 5.20% due 2047 [Member]
Debt Instrument [Line Items]
Long-term Debt, gross	[3]	$ 225,000	$ 225,000
Senior notes, net					$ 200,000
[1] In July 2014, we sold in a registered underwritten public offering, $ 300.0 million in aggregate principal amount of 4.25 % senior notes due July 2024 . Interest on these senior notes is payable semi-annually in arrears. We may redeem the notes in whole or in part, at our option, at a redemption price equal to 100 % of their principal amount, plus a “make-whole” premium and accrued and unpaid interest, if any, to the date of redemption. In July 2016, we issued an additional $ 200.0 million in aggregate principal amount of 4.25% senior notes due July 2024. On July 18, 2024, the Company’s 4.25 % Senior Notes matured resulting in the retirement of the $ 500.0 million outstanding balance. In May 2020, we sold in a registered underwritten public offering, $ 400.0 million in aggregate principal amount of 4.00 % senior notes due May 2030 . Interest on these senior notes is payable semi-annually in arrears. We may redeem the notes in whole or in part, at our option, at a redemption price equal to the greater of a) 100 % of their principal amount, or b) discounted present value at Treasury rate plus 50 basis points prior to February 15, 2030, and on or after February 15, 2030, at 100 % of their principal amount, and accrued and unpaid interest, if any, to the date of redemption. In October 2017, we completed the pricing of a registered underwritten public offering of $ 200.0 million in aggregate principal amount of 5.20 % senior notes due October 2047 . Interest on the senior notes is payable quarterly in arrears. We may redeem some or all of the senior notes at any time at a redemption price equal to 100 % of the principal amount of the notes being redeemed plus accrued interest thereon to the redemption date. On October 27, 2017, we completed the sale of an additional $ 25.0 million aggregate principal amount of Notes pursuant to the over-allotment option.

Senior Notes (Summary of Seni_2

Senior Notes (Summary of Senior Notes) (Parenthetical) (Details) - USD ($) $ in Thousands			1 Months Ended	9 Months Ended
	Feb. 15, 2030	Oct. 27, 2017	Jul. 31, 2016	Sep. 30, 2024	Jul. 18, 2024	Dec. 31, 2023	May 31, 2020	Oct. 31, 2017	Jul. 31, 2014
Debt Instrument [Line Items]
Debt Instrument Interest Rate Stated Percentage					4.25%
Long-term Debt				$ 616,412		$ 1,115,629
Senior notes				$ 616,412	$ 500,000	$ 1,115,629
Senior notes 4.25% due 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument Interest Rate Stated Percentage				4.25%		4.25%
Long-term Debt									$ 300,000
Debt instrument, maturity date				Jul. 31, 2024
Redemption price, percentage of principal amount				100%
Additional issuance of long-term debt			$ 200,000
Senior notes 4.00% due 2030 [Member]
Debt Instrument [Line Items]
Debt Instrument Interest Rate Stated Percentage				4%		4%
Long-term Debt							$ 400,000
Debt instrument, maturity date				May 31, 2030
Senior notes 4.00% due 2030 [Member] | After February 15, 2030 [Member]
Debt Instrument [Line Items]
Redemption price, percentage of principal amount				100%
Senior notes 4.00% due 2030 [Member] | Measurement Input, Discount Rate [Member] | Prior to February 15, 2030 [Member]
Debt Instrument [Line Items]
Redemption at treasury rate basis point				0.50%
Senior notes 4.00% due 2030 [Member] | Forecast [Member]
Debt Instrument [Line Items]
Redemption price, percentage of principal amount	100%
Senior notes 5.20% due 2047 [Member]
Debt Instrument [Line Items]
Debt Instrument Interest Rate Stated Percentage				5.20%		5.20%
Long-term Debt								$ 200,000
Debt instrument, maturity date				Oct. 31, 2047
Redemption price, percentage of principal amount				100%
Additional issuance of long-term debt		$ 25,000

Senior Notes (Schedule Of Corpo

Senior Notes (Schedule Of Corporate Debt Principal Maturities) (Details) - Non Recourse Debt [Member] $ in Thousands	Sep. 30, 2024 USD ($)
Debt Instrument [Line Items]
Thereafter	$ 625,000
Long-term Debt, Total	$ 625,000

Bank Deposits (Schedule of Depo

Bank Deposits (Schedule of Deposits) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Deposits Liabilities, Balance Sheet, Reported Amounts [Abstract]
Demand deposits (interest-bearing)	$ 27,539,904	$ 27,111,072
Demand deposits (non-interest-bearing)	309,982	223,505
Certificates of deposit	270,632	2
Bank deposits	$ 28,120,518	$ 27,334,579

Bank Deposits (Narrative) (Deta

Bank Deposits (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Bank Deposits [Line Items]
Weighted average interest rate on deposits	3.32%	2.66%
Certificates of deposit	$ 0.1
Certificates of deposit greater, due within one year	270.6
Brokerage Customers Deposits [Member]
Bank Deposits [Line Items]
Deposits of related parties	26,000	$ 24,100
Stifel Nicolaus [Member]
Bank Deposits [Line Items]
Interest bearing and time deposits of executive officers, directors, and affiliates	$ 2.4	$ 9

Derivative Instruments and He_3

Derivative Instruments and Hedging Activities (Schedule of Fair Values of Derivative Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2024		Dec. 31, 2023
Derivative [Line Items]
Derivative Assets	$ 95,327	[1]	$ 118,668	[2]
Notional value	2,195,110		1,994,919
Interest Rate Contracts [Member]
Derivative [Line Items]
Derivative Assets	$ 95,327		$ 118,668
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets		Other Assets
Derivative Liabilities	$ 95,314		$ 118,651
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accounts Payable and Accrued Liabilities		Accounts Payable and Accrued Liabilities
Notional value	$ 2,195,110		$ 1,994,919
[1] Included in other assets in the consolidated statements of financial condition. Included in other assets in the consolidated statements of financial condition.

Derivative Instruments and He_4

Derivative Instruments and Hedging Activities (Schedule of Maturiries of Derivative Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Within one year	$ 219,563
One to three years	780,905
Three to five years	456,562
Five to ten years	662,976
Ten to fifteen years	58,020
Fifteen years and thereafter	17,084
Total	$ 2,195,110	$ 1,994,919

Derivative Instruments and He_5

Derivative Instruments and Hedging Activities (Schedule of Distribution of Customer Interest Rate Derivative) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Derivative [Line Items]
Derivative, Notional Amount	$ 2,195,110	$ 1,994,919
Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount	2,025,110	1,824,919
Written options [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 170,000	$ 170,000

Disclosures About Offsetting _3

Disclosures About Offsetting Assets and Liabilities - Financial Assets and Derivative Assets that are Subject to Offset (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Offsetting Assets [Line Items]
Gross amounts of recognized assets, Securities borrowing	$ 252,037	$ 215,368
Net amounts presented in the Statement of Financial Condition, Securities borrowing	252,037	215,368
Gross amounts not offset in the Statement of Financial Position, Financial instruments, Securities borrowing	(83,345)	(23,691)
Gross amounts not offset in the Statement of Financial Position, Collateral received, Securities borrowing	(158,275)	(184,689)
Securities borrowed, Net amount	10,417	6,988
Gross amounts of recognized assets, Reverse repurchase agreements	665,067	349,849
Net amounts presented in the Statement of Financial Condition, Securities purchased under agreements to resell	665,067	349,849
Gross amounts not offset in the Statement of Financial Position, Financial instruments, Securities purchased under agreements to resell	(4,079)	(23,441)
Gross amounts not offset in the Statement of Financial Position, Collateral received, Securities purchased under agreements to resell	(657,485)	(325,627)
Securities purchased under agreements to resell, Net amount	3,503	781
Gross amounts of recognized assets	1,012,431	683,885
Gross amounts not offset in the Statement of Financial Position	(112,369)	(61,688)
Net amounts presented in the Statements of Financial Condition	1,012,431	683,885
Gross amounts not offset in the Statement of Financial Position, Collateral received	(879,689)	(592,923)
Net amount	20,373	29,274
Interest Rate Contracts [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	95,327	118,668
Gross amounts not offset in the Statement of Financial Position	(24,945)	(14,556)
Net amounts presented in the Statements of Financial Condition	95,327	118,668
Gross amounts not offset in the Statement of Financial Position, Collateral received	(63,929)	(82,607)
Offsetting assets interest rate contracts net	$ 6,453	$ 21,505

Disclosures About Offsetting _4

Disclosures About Offsetting Assets and Liabilities - Financial Assets and Derivative Assets that are Subject to Offset (Details) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Offsetting Assets [Line Items]
Fair value of securities received as collateral	$ 657,485	$ 325,627
Fair Value Of Securities Received As Collateral [Member]
Offsetting Assets [Line Items]
Fair value of securities received as collateral	661,500	350,200
Fair Value Of Securities Received As Collateral [Member] | Interest Rate Contracts [Member]
Offsetting Assets [Line Items]
Fair value of securities received as collateral	$ 73,500	$ 84,100

Disclosures About Offsetting _5

Disclosures About Offsetting Assets and Liabilities - Financial Liabilities and Derivative Liabilities that are Subject to Offset (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities, Securities lending	$ (152,255)	$ (135,693)
Net amounts presented in the Statement of Financial Condition, Securities lending	(152,255)	(135,693)
Gross amounts not offset in the Statement of Financial Position, Financial instruments, Securities lending	83,345	23,691
Gross amounts not offset in the Statement of Financial Position, Collateral pledged, Securities lending	68,910	111,981
Securities lending, Net amount	0	(21)
Gross amounts of recognized liabilities, Securities purchased under agreements to resell	(657,984)	(417,644)
Net amounts presented in the Statement of Financial Condition, Securities purchased under agreements to resell	(657,984)	(417,644)
Gross amounts not offset in the Statement of Financial Position, Financial instruments, Securities purchased under agreements to resell	4,079	23,441
Gross amounts not offset in the Statement of Financial Position, Collateral pledged, Securities purchased under agreements to resell	653,905	394,203
Gross amounts of recognized liabilities	(905,553)	(671,988)
Net amounts presented in the Statement of Financial Condition	(905,553)	(671,988)
Gross amounts not offset in the Statement of Financial Position, Financial instruments	112,369	61,688
Gross amounts not offset in the Statement of Financial Condition, Collateral pledged	738,268	528,845
Net amount	(54,916)	(81,455)
Interest Rate Contracts [Member]
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	(95,314)	(118,651)
Net amounts presented in the Statement of Financial Condition	(95,314)	(118,651)
Gross amounts not offset in the Statement of Financial Position, Financial instruments	24,945	14,556
Gross amounts not offset in the Statement of Financial Condition, Collateral pledged	15,453	22,661
Offsetting liability interest rate contracts net	$ (54,916)	$ (81,434)

Disclosures About Offsetting _6

Disclosures About Offsetting Assets and Liabilities - Financial Liabilities and Derivative Liabilities that are Subject to Offset (Details) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Offsetting Liabilities [Line Items]
Fair value of securities pledged as collateral to counterparty	$ 653,905	$ 394,203
Fair Value Of Securities Pledged As Collateral [Member] | Interest Rate Contracts [Member]
Offsetting Liabilities [Line Items]
Fair value of securities pledged as collateral to counterparty	21,200	19,100
U.S. Government Agency Securities And U.S. Government Securities And Corporate Fixed Income Securities [Member] | Fair Value Of Securities Pledged As Collateral [Member]
Offsetting Liabilities [Line Items]
Fair value of securities pledged as collateral to counterparty	$ 689,000	$ 425,900

Commitments, Guarantees, and _2

Commitments, Guarantees, and Contingencies (Narrative) (Details) $ in Millions	Sep. 30, 2024 USD ($)
Purchase Commitments [Member] | To Be Announced Security Contracts [Member]
Loss Contingencies [Line Items]
Estimated fair value of the purchase commitments	$ 115

Regulatory Capital Requiremen_3

Regulatory Capital Requirements (Narrative) (Details) $ in Millions	Sep. 30, 2024 USD ($)
Our Other Broker-Dealer Subsidiaries
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Ratio of indebtedness to net capital	15
Stifel Nicolaus [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Aggregate debit balances	41%
Net capital	$ 486.2
Excess of minimum required net capital	462.5
Stifel Financial Corp. [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Net capital under the alternative method	$ 1
Aggregate debit balances	2%

Regulatory Capital Requiremen_4

Regulatory Capital Requirements (Schedule Of Total Risk-Based, Tier 1 Risk-Based, And Tier 1 Leverage Ratios) (Details) $ in Thousands	Sep. 30, 2024 USD ($)
Stifel Financial Corp. [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Tier 1 capital, Actual Amount	$ 4,159,276
Tier 1 capital, Actual Ratio	0.179
Tier 1 capital For Capital Adequacy Purposes, Amount	$ 1,390,994
Tier 1 capital For Capital Adequacy Purposes, Ratio	0.060
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 1,854,659
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.080
Total capital, Actual Amount	$ 4,377,743
Total capital, Actual Ratio	0.189
Total capital For Capital Adequacy Purposes, Amount	$ 1,854,659
Total capital For Capital Adequacy Purposes, Ratio	0.080
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 2,318,324
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.100
Tier 1 leverage, Actual Amount	$ 4,159,276
Tier 1 leverage, Actual Ratio	0.113
Tier 1 leverage For Capital Adequacy Purposes, Amount	$ 1,472,539
Tier 1 leverage For Capital Adequacy Purposes, Ratio	0.040
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 1,840,674
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.050
Stifel Financial Corp. [Member] | Common Stock [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Tier 1 capital, Actual Amount	$ 3,474,276
Tier 1 capital, Actual Ratio	0.15
Tier 1 capital For Capital Adequacy Purposes, Amount	$ 1,043,246
Tier 1 capital For Capital Adequacy Purposes, Ratio	0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 1,506,911
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.065
Stifel Bank & Trust [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Tier 1 capital, Actual Amount	$ 1,306,476
Tier 1 capital, Actual Ratio	0.107
Tier 1 capital For Capital Adequacy Purposes, Amount	$ 732,800
Tier 1 capital For Capital Adequacy Purposes, Ratio	0.060
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 977,066
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.080
Total capital, Actual Amount	$ 1,429,156
Total capital, Actual Ratio	0.117
Total capital For Capital Adequacy Purposes, Amount	$ 977,066
Total capital For Capital Adequacy Purposes, Ratio	0.080
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 1,221,333
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.100
Tier 1 leverage, Actual Amount	$ 1,306,476
Tier 1 leverage, Actual Ratio	0.071
Tier 1 leverage For Capital Adequacy Purposes, Amount	$ 735,906
Tier 1 leverage For Capital Adequacy Purposes, Ratio	0.040
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 919,883
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.050
Stifel Bank & Trust [Member] | Common Stock [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Tier 1 capital, Actual Amount	$ 1,306,476
Tier 1 capital, Actual Ratio	0.107
Tier 1 capital For Capital Adequacy Purposes, Amount	$ 549,600
Tier 1 capital For Capital Adequacy Purposes, Ratio	0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 793,866
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.065
Stifel Bank [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Tier 1 capital, Actual Amount	$ 758,397
Tier 1 capital, Actual Ratio	0.136
Tier 1 capital For Capital Adequacy Purposes, Amount	$ 335,487
Tier 1 capital For Capital Adequacy Purposes, Ratio	0.060
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 447,315
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.080
Total capital, Actual Amount	$ 799,189
Total capital, Actual Ratio	0.143
Total capital For Capital Adequacy Purposes, Amount	$ 447,315
Total capital For Capital Adequacy Purposes, Ratio	0.080
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 559,144
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.100
Tier 1 leverage, Actual Amount	$ 758,397
Tier 1 leverage, Actual Ratio	0.071
Tier 1 leverage For Capital Adequacy Purposes, Amount	$ 428,036
Tier 1 leverage For Capital Adequacy Purposes, Ratio	0.040
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 535,045
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.050
Stifel Bank [Member] | Common Stock [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Tier 1 capital, Actual Amount	$ 758,397
Tier 1 capital, Actual Ratio	0.136
Tier 1 capital For Capital Adequacy Purposes, Amount	$ 251,615
Tier 1 capital For Capital Adequacy Purposes, Ratio	0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 363,444
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.065

Operating Leases (Narrative) (D

Operating Leases (Narrative) (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2024 USD ($) Engine	Sep. 30, 2024 USD ($) Engine Aircraft	Dec. 31, 2023 USD ($)
Lessee Lease Description [Line Items]
Operating lease right-of-use assets, net	$ 812,659	$ 812,659	$ 778,216
Lease liabilities, net	872,369	$ 872,369	$ 825,529
Number of aircraft engines | Aircraft		24
Lease income	8,600	$ 18,200
Net book value of lease assets	$ 157,000	157,000
Other Income [Member] | 2 Aircraft Engines [Member]
Lessee Lease Description [Line Items]
Number of engines sold | Engine	2
Net book value	$ 6,200	$ 6,200
Gain loss on sale of aircraft engines	1,100
Other Income [Member] | 5 Aircraft Engines [Member]
Lessee Lease Description [Line Items]
Number of engines sold | Engine		5,000,000
Net book value	$ 23,800	$ 23,800
Gain loss on sale of aircraft engines		20,800
Other Assets [Member] | 22 Aircraft Engine [Memebr]
Lessee Lease Description [Line Items]
Number of engines sold | Engine	22
Net book value	$ 152,100	$ 152,100
Minimum [Member] | Office Space And Office Equipment [Member]
Lessee Lease Description [Line Items]
Operating leases remaining lease term		1 year
Maximum [Member] | Office Space And Office Equipment [Member]
Lessee Lease Description [Line Items]
Operating leases remaining lease term		15 years

Operating Leases - (Schedule of

Operating Leases - (Schedule of Net Lease Cost) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Lessee Disclosure [Abstract]
Operating lease cost	$ 27,789	$ 27,183	$ 82,981	$ 79,961
Short-term lease cost	814	710	2,192	1,425
Variable lease cost	6,567	7,299	20,579	21,244
Sublease income	(290)	(274)	(839)	(836)
Net lease cost	$ 34,880	$ 34,918	104,913	$ 101,794
Operating lease cash flows			75,816
Right-of-use assets obtained in exchange for new operating lease liabilities			$ 85,088
Weighted-average remaining lease term (years)	12 years 7 months 6 days		12 years 7 months 6 days
Weighted-average discount rate	4.93%		4.93%

Operating Leases - (Schedule _2

Operating Leases - (Schedule of Information About Operating Lease Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Lessee Disclosure [Abstract]
Remainder of 2024	$ 27,139
2025	104,756
2026	105,723
2027	106,217
2028	103,840
Thereafter	762,653
Total undiscounted lease payments	1,210,328
Imputed interest	(337,959)
Total operating lease liabilities	$ 872,369	$ 825,529

Revenues from Contracts with _3

Revenues from Contracts with Customers (Schedule of Total Revenues Broken Out by Revenues from Contracts with Customers and Other Sources of Revenues) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenues:
Revenue from contracts with customers	$ 810,892	$ 646,469	$ 2,377,946	$ 1,998,521
Other sources of revenue:
Interest	510,823	505,198	1,515,803	1,439,532
Principal transactions	137,089	114,841	429,677	336,063
Other	17,056	(921)	35,388	(4,927)
Total revenues	1,475,860	1,265,587	4,358,814	3,769,189
Commissions [Member]
Revenues:
Revenue from contracts with customers	183,445	165,075	552,238	499,983
Investment Banking [Member]
Revenues:
Revenue from contracts with customers	243,182	146,887	690,412	525,591
Asset Management [Member]
Revenues:
Revenue from contracts with customers	382,616	333,127	1,130,849	968,960
Other [Member]
Revenues:
Revenue from contracts with customers	$ 1,649	$ 1,380	$ 4,447	$ 3,987

Revenues from Contracts with _4

Revenues from Contracts with Customers (Revenues from Contracts with Customers Disaggregated by Major Business Activity and Primary Geographic Regions) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation Of Revenue [Line Items]
Commissions	$ 183,445	$ 165,075	$ 552,238	$ 499,983
Investment banking	243,182	146,887	690,412	525,591
Revenue from contracts with customers	810,892	646,469	2,377,946	1,998,521
Capital Raising [Member]
Disaggregation Of Revenue [Line Items]
Investment banking	106,325	49,614	302,892	189,381
Advisory [Member]
Disaggregation Of Revenue [Line Items]
Investment banking	136,857	97,273	387,520	336,210
Asset Management [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	382,616	333,127	1,130,849	968,960
Other [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	1,649	1,380	4,447	3,987
Global Wealth Management [Member]
Disaggregation Of Revenue [Line Items]
Commissions	129,230	112,300	371,912	332,327
Investment banking	6,217	3,895	16,277	12,118
Revenue from contracts with customers	519,405	450,602	1,523,132	1,317,129
Global Wealth Management [Member] | Capital Raising [Member]
Disaggregation Of Revenue [Line Items]
Investment banking	6,217	3,895	16,277	12,118
Global Wealth Management [Member] | Asset Management [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	382,309	333,088	1,130,496	968,863
Global Wealth Management [Member] | Other [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	1,649	1,319	4,447	3,821
Institutional Group [Member]
Disaggregation Of Revenue [Line Items]
Commissions	54,215	52,775	180,326	167,656
Investment banking	236,965	142,992	674,135	513,473
Revenue from contracts with customers	291,487	195,823	854,814	681,243
Institutional Group [Member] | Capital Raising [Member]
Disaggregation Of Revenue [Line Items]
Investment banking	100,108	45,719	286,615	177,263
Institutional Group [Member] | Advisory [Member]
Disaggregation Of Revenue [Line Items]
Investment banking	136,857	97,273	387,520	336,210
Institutional Group [Member] | Asset Management [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	307	39	353	97
Institutional Group [Member] | Other [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers		17		17
Other [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers		44		149
Other [Member] | Other [Member]
Disaggregation Of Revenue [Line Items]
Other		44		149
United States [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	759,194	596,433	2,220,469	1,816,325
United States [Member] | Global Wealth Management [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	519,405	450,602	1,523,132	1,317,129
United States [Member] | Institutional Group [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	239,789	145,787	697,337	499,047
United States [Member] | Other [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers		44		149
United Kingdom [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	28,393	31,240	89,964	99,844
United Kingdom [Member] | Institutional Group [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	28,393	31,240	89,964	99,844
Canada [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	9,969	8,601	31,056	38,738
Canada [Member] | Institutional Group [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	9,969	8,601	31,056	38,738
Other [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	13,336	10,195	36,457	43,614
Other [Member] | Institutional Group [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	$ 13,336	$ 10,195	$ 36,457	$ 43,614

Revenues from Contracts with _5

Revenues from Contracts with Customers (Narrative) (Details) - USD ($)	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Receivables related to contract with customers	$ 131,400,000	$ 136,900,000
Impairment related to receivables	0
Deferred Revenue	$ 21,500,000	$ 18,500,000

Interest Income and Interest _3

Interest Income and Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Interest Income (Expense), Operating [Abstract]
Loans held for investment, net	$ 319,493	$ 320,715	$ 936,714	$ 928,801
Investment securities	124,582	120,670	360,975	345,201
Interest-bearing cash and federal funds sold	36,684	35,560	128,842	83,280
Margin balances	13,710	15,651	41,870	45,874
Financial instruments owned	7,027	4,402	18,232	12,754
Other	9,327	8,200	29,170	23,622
Total interest income	510,823	505,198	1,515,803	1,439,532
Bank deposits	229,725	198,197	680,076	506,847
Senior notes	8,184	12,507	33,197	37,519
Other	13,283	9,832	39,903	22,258
Total interest expense	$ 251,192	$ 220,536	$ 753,176	$ 566,624

Employee Incentive, Deferred _2

Employee Incentive, Deferred Compensation, and Retirement Plans (Details) - USD ($) $ in Thousands, shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized to grant			3.9
Stock-based compensation			$ 118,447	$ 106,237
Unrecognized compensation expense related to non-vested options	$ 712,900		712,900
Contributions to profit sharing	4,200	$ 4,300	13,400	13,200
Incentive Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 36,600	35,200	$ 106,700	102,900
Restricted Stock Units, PRSUs, and Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total number of stock awards outstanding	13.7		13.7
Unvested stock awards outstanding	12.1		12.1
Weighted-average period, compensation cost expected to recognized, in years			2 years 6 months
Performance-based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			5 years
Award performance period in years			4 years
Performance-based Restricted Stock Units [Member] | One to Four Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of earned award vested			80%
Performance-based Restricted Stock Units [Member] | Fifth Year [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of earned award vested			20%
SWAP Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Elective deferrals vested percentage	100%		100%
Percentage of earnings deferred into company stock units, Additional elective deferral			1%
Minimum [Member] | Deferred Compensation Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			1 year
Minimum [Member] | Deferred Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			1 year
Minimum [Member] | Restricted Stock Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			1 year
Minimum [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			1 year
Minimum [Member] | Performance-based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Potential percentage of converted shares			0%
Minimum [Member] | SWAP Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			1 year
Maximum [Member] | Deferred Compensation Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			8 years
Maximum [Member] | Deferred Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			10 years
Maximum [Member] | Restricted Stock Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			2 years
Maximum [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			10 years
Maximum [Member] | Performance-based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Potential percentage of converted shares			200%
Maximum [Member] | SWAP Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			10 years
Debentures [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 30,200	$ 27,200	$ 88,200	$ 78,400

Off-Balance Sheet Credit Risk (

Off-Balance Sheet Credit Risk (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
General settlement period of securities transactions	1 day
Fair value of securities accepted as collateral permitted to sell or repledge	$ 1,800	$ 1,600
Fair value of collateral securities sold or repledged	658	417.6
Outstanding commitments to originate loans	242.2	103.6
Letters of credit outstanding	41.6	37.1
Unfunded Commitment [Member]
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Unused lines of credit to commercial and consumer borrowers	25.9	33.3
Unused Lines Of Credit [Member]
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Unused lines of credit to commercial and consumer borrowers	$ 5,300	$ 6,300
Standby Letters of Credit [Member] | Maximum [Member]
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Letters of credit, expiration period	1 year

Segment Reporting (Narrative) (

Segment Reporting (Narrative) (Details)	9 Months Ended
	Sep. 30, 2024 Segment
Segment Reporting Information [Line Items]
Number of business segments	3
Global Wealth Management [Member]
Segment Reporting Information [Line Items]
Number of businesses within operating segment	2

Segment Reporting (Schedule Of

Segment Reporting (Schedule Of Operating Information, Segment) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information [Line Items]
Net revenues	[1]	$ 1,224,668	$ 1,045,051	$ 3,605,638	$ 3,202,565
Income/(loss) before income taxes		216,658	109,429	662,243	500,697
Global Wealth Management [Member]
Segment Reporting Information [Line Items]
Net revenues	[1]	827,116	768,558	2,418,751	2,283,934
Income/(loss) before income taxes		301,703	298,449	891,624	914,462
Institutional Group [Member]
Segment Reporting Information [Line Items]
Net revenues	[1]	372,401	256,888	1,114,498	867,025
Income/(loss) before income taxes		41,797	(27,804)	127,719	(5,671)
Other Segments [Member]
Segment Reporting Information [Line Items]
Net revenues	[1]	25,151	19,605	72,389	51,606
Income/(loss) before income taxes		$ (126,842)	$ (161,216)	$ (357,100)	$ (408,094)
[1] No individual client accounted for more than 10 percent of total net revenues for the three and nine months ended September 30, 2024 and 2023.

Segment Reporting (Schedule O_2

Segment Reporting (Schedule Of Operating Information, Segment) (Parenthetical) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting [Abstract]
Net revenues accounted for by individual client, maximum percentage	10%	10%	10%	10%

Segment Reporting (Schedule O_3

Segment Reporting (Schedule Of Information Of Total Assets On Segment Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Assets	$ 38,934,504	$ 37,727,460
Global Wealth Management [Member]
Segment Reporting Information [Line Items]
Assets	33,511,302	32,773,613
Institutional Group [Member]
Segment Reporting Information [Line Items]
Assets	5,211,808	4,564,058
Other Segments [Member]
Segment Reporting Information [Line Items]
Assets	$ 211,394	$ 389,789

Segment Reporting (Schedule O_4

Segment Reporting (Schedule Of Net Revenues Earned On Major Geographical Areas) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information [Line Items]
Total net revenues	[1]	$ 1,224,668	$ 1,045,051	$ 3,605,638	$ 3,202,565
United States [Member]
Segment Reporting Information [Line Items]
Total net revenues		1,167,463	979,282	3,415,635	2,982,274
United Kingdom [Member]
Segment Reporting Information [Line Items]
Total net revenues		32,945	45,095	113,168	131,855
Canada [Member]
Segment Reporting Information [Line Items]
Total net revenues		9,309	8,364	31,539	37,195
Other [Member]
Segment Reporting Information [Line Items]
Total net revenues		$ 14,951	$ 12,310	$ 45,296	$ 51,241
[1] No individual client accounted for more than 10 percent of total net revenues for the three and nine months ended September 30, 2024 and 2023.

Earnings Per Share ("EPS") (Com

Earnings Per Share ("EPS") (Computation Of Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Earnings Per Share [Abstract]
Net income		$ 158,505	$ 68,161	$ 487,374	$ 360,052
Preferred dividends		9,320	9,321	27,961	27,961
Net income available to common shareholders		$ 149,185	$ 58,840	$ 459,413	$ 332,091
Average shares used in basic computation		103,966	106,068	104,135	107,580
Dilutive effect of stock options and units	[1]	7,028	7,127	6,322	6,590
Average shares used in diluted computation		110,994	113,195	110,457	114,170
Basic		$ 1.43	$ 0.55	$ 4.41	$ 3.09
Diluted		$ 1.34	$ 0.52	$ 4.16	$ 2.91
[1] Diluted earnings per share is computed on the basis of the weighted-average number of shares of common stock plus the effect of dilutive potential common shares outstanding during the period using the treasury stock method. Diluted earnings per share include units.

Earnings Per Share ("EPS") (Det

Earnings Per Share ("EPS") (Details) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Earnings Per Share [Abstract]
Cash dividends declared per common share	$ 0.42	$ 0.36	$ 1.26	$ 1.08

Shareholders' Equity (Details)

Shareholders' Equity (Details) shares in Millions	9 Months Ended
	Sep. 30, 2024 shares
Equity [Abstract]
Number of shares authorized to be repurchased	10.5
Common stock reissued	2.6

Shareholders' Equity (Schedule

Shareholders' Equity (Schedule of Company's Shares Repurchase Activity) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Equity [Abstract]
Share repurchases	$ 20,222	$ 118,810	$ 98,529	$ 300,152
Number of shares	249	1,886	1,318	4,830
Average price	$ 81.23	$ 63	$ 74.78	$ 62.14

Variable Interest Entities (Nar

Variable Interest Entities (Narrative) (Details)	Mar. 31, 2024
Turbine
Variable Interest Entity [Line Items]
Equity method investment percentage	100%

Variable Interest Entities - (S

Variable Interest Entities - (Schedule of Aggregate Assets and Liabilities from VIEs) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Variable Interest Entity [Line Items]
Assets	$ 38,934,504	$ 37,727,460
Total liabilities	33,377,424	$ 32,433,029
Variable Interest Entity, Primary Beneficiary [Member] | Securitization Interests [Member]
Variable Interest Entity [Line Items]
Assets	182,051
Total liabilities	$ 168,452

Variable Interest Entities (Sch

Variable Interest Entities (Schedule of Aggregate Assets, Liabilities, and Our Exposure to Loss from those VIEs) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Variable Interest Entity [Line Items]
Assets	$ 38,934,504	$ 37,727,460
Total liabilities	33,377,424	32,433,029
Variable Interest Entity Not Primary Beneficiary [Member] | Debt and equity [member]
Variable Interest Entity [Line Items]
Assets	715,256	798,266
Total liabilities	196,364	278,602
Maximum Exposure to Loss	39,890	40,088
Variable Interest Entity Not Primary Beneficiary [Member] | Miscellaneous Investments [Member]
Variable Interest Entity [Line Items]
Assets	401,672	456,286
Total liabilities	195,379	277,924
Maximum Exposure to Loss	39,890	40,088
Variable Interest Entity Not Primary Beneficiary [Member] | Partnership Interest [Member]
Variable Interest Entity [Line Items]
Assets	313,584	341,980
Total liabilities	985	678
Maximum Exposure to Loss	$ 0	$ 0