Stockholders' Equity - Schedule of Share Based Compensation Stock Option Activity (Detail) - Zynga Stock Options [Member] - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Options Outstanding, Beginning balance	22.7
Stock Options, Exercised	(0.2)
Stock Options Outstanding, Ending balance	22.5	22.7
Outstanding Options, Weighted Average Exercise Price (per option), Beginning Balance	$ 3.56
Weighted Average Exercise Price (per option), Exercised	3.21
Outstanding Options, Weighted Average Exercise Price (per option), Ending Balance	$ 3.56	$ 3.56
Aggregate Intrinsic Value of Stock Options Outstanding	$ 127.8	$ 64.9
Outstanding Options, Weighted Average Contractual Term (in years)	5 years 4 months 13 days	5 years 8 months 15 days