Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenues:
Services and fees	$ 210,675	$ 289,469
Trading (losses) income and fair value adjustments on loans	(68,390)	266,942
Interest income - Loans and securities lending	61,426	36,920
Sale of goods	1,878	6,828
Total revenues	205,589	600,159
Operating expenses:
Direct cost of services	11,651	11,322
Cost of goods sold	2,251	5,326
Selling, general and administrative expenses	175,199	191,344
Interest expense - Securities lending and loan participations sold	11,766	19,189
Total operating expenses	200,867	227,181
Operating income	4,722	372,978
Other income (expense):
Interest income	67	49
Change in fair value of financial instruments and other	5,981	0
Income from equity investments	6,775	875
Interest expense	(30,436)	(19,786)
(Loss) income before income taxes	(12,891)	354,116
Benefit (provision) for income taxes	3,695	(97,518)
Net (loss) income	(9,196)	256,598
Net income attributable to noncontrolling interests	866	1,942
Net (loss) income attributable to B. Riley Financial, Inc.	(10,062)	254,656
Preferred stock dividends	2,002	1,749
Net (loss) income available to common shareholders	(12,064)	252,907
Net (loss) income available to common shareholders	$ (12,064)	$ 252,907
Basic (loss) income per common share (in dollars per share)	$ (0.43)	$ 9.38
Diluted (loss) income per common share (in dollars per share)	$ (0.43)	$ 8.81
Weighted average basic common shares outstanding (in shares)	27,855,033	26,972,275
Weighted average diluted common shares outstanding (in shares)	27,855,033	28,710,368