Redeemable Noncontrolling Interest - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Noncontrolling Interest [Line Items]
Redemption amount of noncontrolling interest	$ 19.6	$ 16.6
Class A Common Stock
Noncontrolling Interest [Line Items]
Number of days used to determine exchange value based on weighted average price of Class A common stock	20 days
Class A Common Stock | Exchange of Redeemable Non controlling Interest To Class A Common Stock
Noncontrolling Interest [Line Items]
Stock conversion ratio	1
vTv Therapeutics LLC
Noncontrolling Interest [Line Items]
Noncontrolling interest ownership percentage	22.10%