Net Loss per Share - Reconciliation of the Numerator and Denominator Used in the Calculation of Basic and Diluted Net Loss per Share of Class A Common Stock (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Numerator:
Net loss	$ (17,731)	$ (12,802)	$ (21,938)
Less: Net loss attributable to noncontrolling interests	(4,744)	(4,303)	(8,894)
Net loss attributable to vTv Therapeutics Inc.	(12,987)	(8,499)	(13,044)
Less: Deemed distribution to related party (Note 13)			(4,869)
Net loss attributable to common shareholders of vTv Therapeutics Inc., basic and diluted	$ (12,987)	$ (8,499)	$ (17,913)
Class A Common Stock [Member]
Denominator:
Weighted average vTv Therapeutics Inc. Class A Common Stock, basic and diluted	60,732,636	47,137,917	30,292,030
Net loss per share of vTv Therapeutics Inc. Class A Common Stock, basic and diluted	$ (0.21)	$ (0.18)	$ (0.59)