Redeemable Noncontrolling Interest - Summary of Net Income Attributable to Vtv Therapeutics Inc (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Noncontrolling Interest [Abstract]
Net loss attributable to vTv Therapeutics Inc. common shareholders	$ (4,241)	$ (4,724)
Increase in vTv Therapeutics Inc. accumulated deficit for purchase of LLC Units as a result of common stock issuances	(2,410)	(2,423)
Change from net loss attributable to vTv Therapeutics Inc. common shareholders and transfers to noncontrolling interest	$ (6,651)	$ (7,147)

Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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+ Details