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	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Numerator:
Net loss	$ (9,424)	$ (5,942)
Less: Net loss attributable to noncontrolling interests	(2,417)	(1,701)
Net loss attributable to common shareholders of vTv Therapeutics Inc., basic and diluted	$ (7,007)	$ (4,241)
Class A Common Stock [Member]
Denominator:
Weighted-average vTv Therapeutics Inc. Class A Common Stock, basic and diluted	66,942,777	56,472,535
Net loss per share of vTv Therapeutics Inc. Class A Common Stock, basic and diluted	$ (0.10)	$ (0.08)