Description of Business, Basis of Presentation and Going Concern - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Accumulated deficit	$ (247,663)	$ (248,834)
Cash and cash equivalents	12,138	$ 13,415
Class A Common Stock [Member] | Cantor Fitzgerald [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Remaining available stock value	$ 37,300
Class A Common Stock [Member] | LPC Purchase Agreement [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance	9,437,376
vTv Therapeutics LLC [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Percentage of non-voting economic interest of vTv Therapeutics Holdings LLC in vTv LLC	25.60%
Percentage of non-voting economic interest of vTv Therapeutics Inc in vTv LLC	74.40%