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, 2017	Mar. 31, 2016
Numerator:
Net loss	$ (14,286)	$ (13,520)
Less: Net loss attributable to noncontrolling interests	(10,066)	(9,668)
Net loss attributable to vTv Therapeutics Inc.	$ (4,220)	$ (3,852)
Class A Common Stock [Member]
Denominator:
Weighted-average vTv Therapeutics Inc. Class A Common Stock, basic and diluted	9,693,254	9,229,645
Net loss per share of vTv Therapeutics Inc. Class A Common Stock, basic and diluted	$ (0.44)	$ (0.42)