Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (111,905)	$ (18,499)	$ (9,712)
Foreign currency translation adjustment	1,155	0	0
Comprehensive loss	(110,750)	(18,499)	(9,712)
Less: Comprehensive income attributable to noncontrolling interest	416	0	0
Net loss attributable to Forge Global Holdings, Inc.	$ (111,166)	$ (18,499)	$ (9,712)