Stockholders' Equity - Schedule of Share Based Compensation Stock Option Activity (Detail) - Zynga Stock Options [Member] $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2019 USD ($) $ / shares shares	Dec. 31, 2018 USD ($) $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Options Outstanding, Beginning balance | shares	36,185
Stock Options, Granted | shares	4,647
Stock Options, Exercised | shares	(7,720)
Stock Options Outstanding, Ending balance | shares	33,112	36,185
Outstanding Options, Weighted Average Exercise Price, Beginning Balance | $ / shares	$ 2.35
Weighted Average Exercise Price, Granted | $ / shares	5.37
Weighted Average Exercise Price, Exercised | $ / shares	0.41
Outstanding Options, Weighted Average Exercise Price, Ending Balance | $ / shares	$ 3.23	$ 2.35
Outstanding Options, Aggregate Intrinsic Value of Stock Options Outstanding | $	$ 96,299	$ 57,510
Outstanding Options, Weighted Average Contractual Term (in years)	7 years 6 months 25 days	6 years 2 months 23 days