Unaudited Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net loss	$ (25,100)	$ (5,119)	$ (46,361)	$ (69,543)
Foreign currency translation adjustment	(53)	0	175	0
Comprehensive loss	(25,153)	(5,119)	(46,186)	(69,543)
Less: Comprehensive loss attributable to noncontrolling interest	(232)	0	(214)	0
Comprehensive loss attributable to Forge Global Holdings, Inc.	$ (24,921)	$ (5,119)	$ (45,972)	$ (69,543)