Stockholders' Equity - Schedule of Share Based Compensation Stock Option Activity (Detail) - Zynga Stock Options [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options Outstanding, Beginning balance	32,964
Stock Options, Granted	6,122
Stock Options, Forfeited, expired and cancelled	(217)
Stock Options, Exercised	(593)
Stock Options Outstanding, Ending balance	38,276	32,964
Outstanding Options, Weighted Average Exercise Price, Beginning Balance	$ 2.07
Weighted Average Exercise Price, Granted	3.48
Weighted Average Exercise Price, Forfeited, expired and cancelled	3.77
Weighted Average Exercise Price, Exercised	1.65
Outstanding Options, Weighted Average Exercise Price, Ending Balance	$ 2.29	$ 2.07
Outstanding Options, Aggregate Intrinsic Value of Stock Options Outstanding	$ 68,360	$ 64,114
Outstanding Options, Weighted Average Contractual Term (in years)	6 years 5 months 23 days	6 years 3 months 25 days