Unaudited Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net loss	$ (16,198)	$ (5,074)	$ (85,741)	$ (12,139)
Foreign currency translation adjustment	(159)	0	(159)	0
Comprehensive loss	(16,357)	(5,074)	(85,900)	(12,139)
Less: Comprehensive loss attributable to noncontrolling interest	(64)	0	(64)	0
Net loss attributable to Forge Global Holdings, Inc.	$ (16,293)	$ (5,074)	$ (85,836)	$ (12,139)