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Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Pay vs Performance Disclosure
Net (loss) income attributable to B. Riley Financial, Inc.	$ (433,604)	$ 46,381	$ (482,769)	$ 63,536

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- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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