Net Loss per Common Share - Basic and Diluted Net Income (Loss) Per Common Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended				9 Months Ended
	Jun. 30, 2021	Jun. 10, 2021	Sep. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Numerator:
Net loss	$ 26,555	$ (13,566)	$ (45,432)	$ 13,706	$ (108,161)	$ 10,361	$ (37,030)	$ (84,812)
Less: Net loss attributable to noncontrolling interest			(7,825)		(28,512)		(6,022)	(22,127)
Net loss attributable to indie Semiconductor, Inc.			(37,607)		(79,649)		(31,008)	(62,685)
Net loss attributable to common shareholders - dilutive			$ (37,607)		$ (79,649)		$ (31,008)	$ (62,685)
Denominator:
Weighted average shares outstanding - basic (in shares)			120,507,152		96,368,379		116,272,459	58,791,245
Weighted average common shares outstanding—diluted (in shares)			120,507,152		96,368,379		116,272,459	58,791,245
Earnings Per Share, Basic [Abstract]
Net loss per share attributable to common shares - basic (in dollars per share)			$ (0.31)		$ (0.83)		$ (0.27)	$ (1.07)
Earnings Per Share, Diluted [Abstract]
Net loss per share attributable to common shares - diluted (in dollars per share)			$ (0.31)		$ (0.83)		$ (0.27)	$ (1.07)