Redeemable Noncontrolling Interest - Summary of Net Income Attributable to Vtv Therapeutics Inc (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Noncontrolling Interest [Abstract]
Net loss attributable to vTv Therapeutics Inc. common shareholders	$ (12,987)	$ (8,499)	$ (17,913)
Increase in vTv Therapeutics Inc. accumulated deficit for purchase of LLC Units as a result of common stock issuances	(5,084)	(8,943)	(17,971)
Change from net loss attributable to vTv Therapeutics Inc. common shareholders and transfers to noncontrolling interest	$ (18,071)	$ (17,442)	$ (35,884)