Condensed Consolidated Statements of Operations (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025		Jun. 30, 2024
Revenues:
Total revenues	$ 225,302	$ 94,885	$ 411,365		$ 392,475
Operating expenses:
Direct cost of services	33,216	58,679	75,916		118,349
Cost of goods sold	35,113	39,758	71,846		78,585
Selling, general and administrative expenses	142,369	178,014	309,757		356,954
Restructuring charge	321	20	321		809
Impairment of goodwill and tradenames	1,500	27,681	1,500		27,681
Interest expense - Securities lending and loan participations sold	1,968	23,313	2,687		58,696
Total operating expenses	214,487	327,465	462,027		641,074
Operating income (loss)	10,815	(232,580)	(50,662)		(248,599)
Other income (expense):
Interest income	492	797	1,978		1,460
Dividend income	122	460	257		3,464
Realized and unrealized gains (losses) on investments	10,216	(155,241)	(4,284)		(190,165)
Change in fair value of financial instruments and other	11,884	0	12,806		0
Gain on sale and deconsolidation of businesses	5,372	0	86,213	[1]	314	[1]
Gain on senior note exchange	44,454	0	54,986		0
Income from equity investments	25,603	10	25,051	[1]	6	[1]
(Loss) gain on extinguishment of debt	(10,266)	120	(20,693)	[1]	120	[1]
Interest expense	(23,952)	(33,534)	(53,916)		(69,199)
Income (loss) from continuing operations before income taxes	74,740	(419,968)	51,736		(502,599)
Provision for income taxes	(3,053)	(29,183)	(11)		(7,853)
Income (loss) from continuing operations	71,687	(449,151)	51,725		(510,452)
Income from discontinued operations, net of income taxes	69,312	15,370	72,707		28,717
Net income (loss)	140,999	(433,781)	124,432	[1]	(481,735)	[1]
Net income (loss) attributable to noncontrolling interests	1,528	(177)	(5,064)		1,034
Net income (loss) attributable to B. Riley Financial, Inc.	139,471	(433,604)	129,496		(482,769)
Preferred stock dividends	2,015	2,015	4,030		4,030
Net income (loss) available to common shareholders	137,456	(435,619)	125,466		(486,799)
Net income (loss) available to common shareholders	$ 137,456	$ (435,619)	$ 125,466		$ (486,799)
Basic net income (loss) per common share:
Continuing operations (in dollars per share)	$ 2.23	$ (14.83)	$ 1.73		$ (17.02)
Discontinued operations (in dollars per share)	2.27	0.48	2.38		0.89
Basic income (loss) per common share (in dollars per share)	4.50	(14.35)	4.11		(16.13)
Diluted net income (loss) per common share:
Continuing operations (in dollars per share)	2.23	(14.83)	1.73		(17.02)
Discontinued operations (in dollars per share)	2.27	0.48	2.38		0.89
Diluted income (loss) per common share (in dollars per share)	$ 4.50	$ (14.35)	$ 4.11		$ (16.13)
Weighted average basic common shares outstanding (in shares)	30,527,835	30,352,054	30,512,757		30,170,819
Weighted average diluted common shares outstanding (in shares)	30,527,835	30,352,054	30,512,757		30,170,819
Services and fees
Revenues:
Total revenues	$ 145,772	$ 202,909	$ 304,611		$ 416,990
Services and fees | Related Party
Revenues:
Total revenues	5,121	3,119	7,849		5,398
Trading gains (losses), net
Revenues:
Total revenues	27,680	(31,321)	11,509		(48,988)
Fair value adjustments on loans
Revenues:
Total revenues	800	(175,582)	(7,296)		(187,783)
Fair value adjustments on loans | Related Party
Revenues:
Total revenues	(992)	(177,618)	(3,137)		(196,743)
Interest income - loans
Revenues:
Total revenues	3,853	18,508	7,049		40,643
Interest income - loans | Related Party
Revenues:
Total revenues	475	13,439	1,171		27,403
Interest income - securities lending
Revenues:
Total revenues	2,124	24,798	2,964		62,607
Sale of goods
Revenues:
Total revenues	$ 45,073	$ 55,573	$ 92,528		$ 109,006

[1] Amounts presented contain results from both continuing and discontinued operations. Refer to Note 4 – Discontinued Operations and Assets Held for Sale for additional information regarding cash flow associated with the results of discontinued operations.