Zynga (ZNGA) 10-Q 7 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	Apr. 15, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Trading Symbol	ZNGA
Entity Registrant Name	ZYNGA INC
Entity Central Index Key	0001439404
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		935,282,782

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 199,725	$ 544,990
Short-term investments	46,694	36,232
Accounts receivable, net of allowance of $0 at March 31, 2019 and December 31, 2018	147,958	91,630
Restricted cash	35,006	35,006
Prepaid expenses	29,384	26,914
Other current assets	20,506	12,505
Total current assets	479,273	747,277
Long-term investments	5,972
Goodwill	1,471,365	934,187
Intangible assets, net	285,146	118,600
Property and equipment, net	268,101	266,557
Right-of-use assets	19,042
Restricted cash	30,018
Prepaid expenses	29,108	30,774
Other non-current assets	64,101	49,308
Total assets	2,652,126	2,146,703
Current liabilities:
Accounts payable	14,917	26,811
Income tax payable	5,633	4,895
Deferred revenue	285,953	191,299
Debt	100,000	100,000
Operating lease liabilities	9,056
Other current liabilities	257,240	156,829
Total current liabilities	672,799	479,834
Deferred revenue	1,014	1,586
Deferred tax liabilities, net	35,119	16,087
Non-current operating lease liabilities	20,098
Other non-current liabilities	181,367	52,586
Total liabilities	910,397	550,093
Stockholders’ equity:
Common stock (Class A), $0.00000625 par value, and additional paid in capital - authorized shares: 2,020,517; shares outstanding: 932,490 shares as of March 31, 2019 and 861,111 as of December 31, 2018	3,782,693	3,504,713
Accumulated other comprehensive income (loss)	(111,462)	(118,439)
Accumulated deficit	(1,929,502)	(1,789,664)
Total stockholders’ equity	1,741,729	1,596,610
Total liabilities and stockholders’ equity	$ 2,652,126	$ 2,146,703

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Accounts receivable, allowance	$ 0	$ 0
Common Class A [Member]
Common stock, par value	$ 0.00000625	$ 0.00000625
Common stock, shares authorized	2,020,517,000	2,020,517,000
Common stock, shares outstanding	932,490,000	861,111,000

Consolidated Statements of Oper

Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenue:
Total revenue	$ 265,403	$ 208,232
Costs and expenses:
Cost of revenue	121,643	69,042
Research and development	161,880	60,825
Sales and marketing	102,011	50,855
General and administrative	21,504	23,253
Total costs and expenses	407,038	203,975
Income (loss) from operations	(141,635)	4,257
Interest income	443	1,810
Other income (expense), net	2,112	3,401
Income (loss) before income taxes	(139,080)	9,468
Provision for (benefit from) income taxes	(10,252)	3,859
Net income (loss)	$ (128,828)	$ 5,609
Net income (loss) per share attributable to common stockholders:
Basic	$ (0.14)	$ 0.01
Diluted	$ (0.14)	$ 0.01
Weighted-average common shares used to compute net income (loss) per share attributable to common stockholders:
Basic	926,230	869,627
Diluted	926,230	893,774
Online Game [Member]
Revenue:
Total revenue	$ 200,164	$ 161,553
Advertising and Other [Member]
Revenue:
Total revenue	$ 65,239	$ 46,679

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement Of Partners Capital [Abstract]
Net income (loss)	$ (128,828)	$ 5,609
Other comprehensive income (loss):
Change in foreign currency translation adjustment	6,963	23,134
Net change in unrealized gains (losses) on available-for-sale marketable debt securities, net of tax	14	(27)
Other comprehensive income (loss), net of tax	6,977	23,107
Comprehensive income (loss)	$ (121,851)	$ 28,716

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Class A [Member]	Class A,B, and C Common Stock [Member]	Additional Paid-In Capital [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Deficit [Member]
Beginning balance, Value at Dec. 31, 2017	$ 1,641,240		$ 5	$ 3,426,500		$ (93,497)	$ (1,691,768)
Beginning balance, Shares at Dec. 31, 2017			870,660,000
Exercise of stock options and ESPP	3,311			3,311
Exercise of stock options and ESPP, Shares			1,510,000
Vesting of ZSUs, net of tax withholdings	(6,364)				$ (6,364)
Vesting of ZSUs, net of tax withholdings, Shares			2,748,000
Stock-based compensation expense	14,113			14,113
Repurchases of common stock, Value	(41,175)				(41,175)
Repurchases of common stock, Shares			(11,306,000)
Retirements of treasury stock					47,539		(47,539)
Adoption of ASU | 2014-09	4,024						4,024
Net income (loss)	5,609	$ 5,047					5,609
Other comprehensive income (loss)	23,107					23,107
Ending balance, Value at Mar. 31, 2018	1,643,865		$ 5	3,443,924		(70,390)	(1,729,674)
Ending balance, Shares at Mar. 31, 2018			863,612,000
Beginning balance, Value at Dec. 31, 2017	1,641,240		$ 5	3,426,500		(93,497)	(1,691,768)
Beginning balance, Shares at Dec. 31, 2017			870,660,000
Ending balance, Value at Dec. 31, 2018	1,596,610	$ 5		3,504,708		(118,439)	(1,789,664)
Ending balance, Shares at Dec. 31, 2018		861,111,000
Exercise of stock options and ESPP	5,304			5,304
Exercise of stock options and ESPP, Shares		5,097,000
Vesting of ZSUs, net of tax withholdings	(11,010)				(11,010)
Vesting of ZSUs, net of tax withholdings, Shares		2,487,000
Acquisition-related common stock issuance	253,903	$ 1		253,902
Acquisition-related common stock issuance, Shares		63,795,000
Stock-based compensation expense	18,773			18,773
Retirements of treasury stock					$ 11,010		(11,010)
Net income (loss)	(128,828)	$ (128,828)					(128,828)
Other comprehensive income (loss)	6,977					6,977
Ending balance, Value at Mar. 31, 2019	$ 1,741,729	$ 6		$ 3,782,687		$ (111,462)	$ (1,929,502)
Ending balance, Shares at Mar. 31, 2019		932,490,000

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net income (loss)	$ (128,828)	$ 5,609
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	21,080	7,731
Stock-based compensation expense	18,773	14,113
(Gain) loss from foreign currency, sales of investments, assets and other, net	154	1,951
(Accretion) and amortization on marketable debt securities, net	(153)	(549)
Noncash lease expense	1,449
Change in deferred income taxes and other	(20,374)	1,322
Changes in operating assets and liabilities:
Accounts receivable, net	(30,001)	10,682
Prepaid expenses and other assets	3,318	(4,786)
Accounts payable	(14,293)	(9,574)
Deferred revenue	86,474	11,234
Income tax payable	(5,361)	(5,004)
Operating lease and other liabilities	69,309	(36,676)
Net cash provided by (used in) operating activities	1,547	(3,947)
Cash flows from investing activities:
Purchases of investments	(29,756)	(124,822)
Maturities of investments	8,500	160,000
Sales of investments	4,987
Acquisition of property and equipment	(5,058)	(1,424)
Proceeds from sale of property and equipment	46	25
Business acquisitions, net of cash acquired and restricted cash held in escrow	(299,357)
Release of restricted cash escrow from business combinations		(22,800)
Net cash provided by (used in) investing activities	(320,638)	10,979
Cash flows from financing activities:
Taxes paid related to net share settlement of stockholders' equity awards	(11,010)	(6,364)
Repurchases of common stock		(39,544)
Proceeds from issuance of common stock	4,939	3,311
Repayment of debt	(1,364)
Other financing activities, net	(326)
Net cash provided by (used in) financing activities	(7,761)	(42,597)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	11,605	1,476
Net change in cash, cash equivalents and restricted cash	(315,247)	(34,089)
Cash, cash equivalents and restricted cash, beginning of period	579,996	405,677
Cash, cash equivalents and restricted cash, end of period	264,749	371,588
Noncash investing activity:
Acquisition-related common stock issuance	253,903
Noncash financing activities:
Unsettled stock option exercise	$ 365
Unsettled repurchases of common stock		$ 1,631

Overview and Summary of Signifi

Overview and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Overview and Summary of Significant Accounting Policies	1. Overview and Summary of Significant Accounting Policies Organization and Description of Business Zynga Inc. (“Zynga,” “we” or the “Company”) is a leading provider of social game services. We develop, market and operate social games as live services played on mobile platforms, such as iOS and Android, and social networking sites such as Facebook. Generally, all of our games are free to play, and we generate substantially all of our revenue through the sale of in-game virtual items and advertising services. Our operations are headquartered in San Francisco, California, and we have several operating locations in the U.S. as well as various international office locations in North America, Asia and Europe. We completed our initial public offering in December 2011 and our Class A common stock is listed on the NASDAQ Global Select Market under the symbol “ZNGA.” Basis of Presentation and Consolidation The accompanying interim consolidated financial statements are presented in accordance with United States generally accepted accounting principles (“U.S. GAAP”). The interim consolidated financial statements include the operations of the Company and its owned subsidiaries. All significant intercompany balances and transactions have been eliminated in the consolidation. The accompanying interim consolidated financial statements and these related notes should be read in conjunction with the consolidated financial statements and related notes included in our Annual Report on Form 10-K for the year ended December 31, 2018. Unaudited Interim Financial Information The accompanying interim consolidated balance sheets as of March 31, 2019 and December 31, 2018, the interim consolidated statements of operations, statements of comprehensive income (loss), statements of stockholders’ equity and statements of cash flows for the three months ended March 31, 2019 and 2018 and the notes to interim consolidated financial statements are unaudited. These unaudited interim consolidated financial statements have been prepared in accordance with U.S. GAAP. In management’s opinion, the unaudited interim consolidated financial statements include all adjustments of a normal recurring nature necessary for the fair presentation of the Company’s statement of financial position and operating results for the periods presented. The results for the three months ended March 31, 2019 are not necessarily indicative of the results expected for the full fiscal year or any other future period. Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts in the interim consolidated financial statements and notes thereto. Significant estimates and assumptions reflected in the financial statements include, but are not limited to, the estimated average playing period of payers that we use for revenue recognition, useful lives of property and equipment and intangible assets, accrued liabilities, income taxes, the fair value of assets and liabilities acquired through business combinations, contingent consideration obligations, the discount rate used in discounting our operating lease liabilities, stock-based compensation expense and evaluation of recoverability of goodwill, intangible assets, and long-lived assets. Actual results could differ materially from those estimates. For the three months ended March 31, 2019, we recognized $0.6 million of online game revenue and income from operations from changes in our estimated average playing period of payers that required adjusting the recognition period of deferred revenue generated in prior periods. Further, we recognized $0.2 million of online game revenue and income from operations from games that have been discontinued as there is no further performance obligation. These changes in estimates did not impact our earnings per share for the three months ended March 31, 2019. For the three months ended March 31, 2018, we recognized $0.4 million of online game revenue and income from operations from games that have been discontinued. This change in estimate did not impact our earnings per share for the three months ended March 31, 2018. Recent Accounting Pronouncements Issued But Not Yet Adopted “Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract” ASC Topic 350-40, Internal-Use Software Issued And Adopted In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842)” “Leases (Topic 842) – Targeted Improvements” Adoption Impact – Lessee Accounting The adoption of ASC Topic 842 on January 1, 2019 resulted in the recognition of right-of-use assets of $9.1 million, which includes the elimination of our remaining prepaid rent and deferred rent balances, current operating lease liabilities of $7.6 million and non-current operating lease liabilities of $12.4 million. The adoption of ASC Topic 842 did not impact our consolidated statement of operations or consolidated statement of cash flows. ASC Topic 842 also amends the provisions of ASC Topic 420 – Exit or Disposal Obligations ASC 360 – Property, Plant, and Equipment As part of the adoption, the new standard allows a number of practical expedients and exemptions. At transition, we elected the following: • The package of practical expedients, which allows us to carryforward our historical lease classification, assessment of whether a contract is or contains a lease and initial direct costs for any leases that exist prior to adoption of the new standard; • The practical expedient to not separate non-lease components from the related lease components; and • The exemption to not apply the balance sheet recognition requirements for leases with a lease term of 12 months or less and instead, expense those costs on a straight-line basis over the lease term, or in the period in which the obligation is incurred, if such costs are variable. Adoption Impact – Lessor Accounting There was no impact to our financial statements as a result of adopting ASC Topic 842. ASU 2018-11, “Leases (Topic 842) – Targeted Improvements” Refer to Note 6 – “Leases” for further details on our lease arrangements as a lessee and lessor.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	3 Months Ended
	Mar. 31, 2019
Revenue From Contract With Customer [Abstract]
Revenue from Contracts with Customers	2. Revenue from Contracts with Customers Disaggregation of Revenue The following table presents our revenue disaggregated by platform (in thousands): Three Months Ended March 31, 2019 2018 Online game: Mobile $ 182,833 $ 139,830 Other (1) 17,331 21,723 Online game total $ 200,164 $ 161,553 Advertising and other: Mobile $ 63,260 $ 42,771 Other (1) 1,979 3,908 Advertising and other total $ 65,239 $ 46,679 Total revenue $ 265,403 $ 208,232 (1) Includes web for Online Game and web advertising revenue and other revenue for Advertising and Other The following table presents our revenue disaggregated based on the geographic location of our payers (in thousands): Three Months Ended March 31, 2019 2018 United States $ 172,061 $ 135,996 All other countries (1) 93,342 72,236 Total revenue $ 265,403 $ 208,232 (1) No foreign country exceeded 10% of our total revenue for any periods presented. Consumable virtual items accounted for 34% of online game revenue in the three months ended March 31, 2019 and 46% of online game revenue in the same period of the prior year. Durable virtual items accounted for 66% of online game revenue in the three months ended March 31, 2019 and 54% of online game revenue in the same period of the prior year. The estimated weighted-average life of durable virtual items was nine months for both the three months ended March 31, 2019 and March 31, 2018. Contract Balances We receive payments from our customers based on the payment terms established in our contracts. Payments for online game revenue are required at time of purchase, are non-refundable and relate to non-cancellable contracts that specify our performance obligations. Such payments are initially recorded to deferred revenue and are recognized into revenue as we satisfy our performance obligations. Further, payments made by our players are collected by payment processors and remitted to us generally within 30 days. Our right to the payments collected on our behalf are unconditional and therefore recorded as accounts receivable, net of the associated payment processing fees. Payments for advertising arrangements are due based on the contractually stated payment terms. For advertising arrangements, the contract terms generally require payment within 30 to 60 days subsequent to the end of the month. Our right to payment from the customer is unconditional and therefore recorded as accounts receivable. During the three months ended March 31, 2019, we recognized $109.5 million of revenue that was included in the current deferred revenue balance on December 31, 2018. The increase in accounts receivable, net during the three months ended March 31, 2019 was primarily driven by a net increase in accounts receivable of $23.0 million on the acquisition date from our acquisition of Small Giant Games Oy (“Small Giant”) and sales on account during the period exceeding cash collections of current period and previously due amounts. The increase in deferred revenue during the three months ended March 31, 2019 was primarily driven by the sale of virtual items during the period, which includes contribution from Small Giant, exceeding revenue recognized from the satisfaction of our performance obligations. Unsatisfied Performance Obligations Substantially all of our unsatisfied performance obligations relate to contracts with an original expected length of one year or less.

Marketable Securities

Marketable Securities	3 Months Ended
	Mar. 31, 2019
Cash And Cash Equivalents [Abstract]
Marketable Securities	3. Marketable Securities The following tables summarize the amortized cost, gross unrealized gains and losses and fair value of our short-term and long-term investments as of March 31, 2019 and December 31, 2018 (in thousands): March 31, 2019 Gross Gross Amortized Unrealized Unrealized Aggregate Cost Gains Losses Fair Value Short-term investments: Corporate debt securities $ 43,681 $ 17 $ (5 ) $ 43,693 U.S. government and government agency debt securities 3,001 — — 3,001 Total $ 46,682 $ 17 $ (5 ) $ 46,694 Long-term investments: Corporate debt securities $ 5,968 $ 4 $ — $ 5,972 Total $ 5,968 $ 4 $ — $ 5,972 December 31, 2018 Gross Gross Amortized Unrealized Unrealized Aggregate Cost Gains Losses Fair Value Short-term investments: Corporate debt securities $ 36,230 $ 2 $ — $ 36,232 Total $ 36,230 $ 2 $ — $ 36,232 As of March 31, 2019, all of our short-term investments have contractual maturities of one year or less and all of our long-term investments have contractual maturities between one and two years. As of March 31, 2019, we did not consider any of our short-term or long-term investments to be other-than-temporarily impaired. We do not intend to sell, nor do we believe it is more likely than not that we will be required to sell, any of the securities in an unrealized loss position. When evaluating our investments for other-than-temporary impairment, we review factors such as the length of time and extent to which fair value has been below its cost basis, the financial condition of the issuer, our ability and intent to hold the security to maturity and whether it is more likely than not that we will be required to sell the investment before recovery of the amortized cost basis.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	4. Fair Value Measurements Our financial assets consist of cash equivalents, short-term and long-term investments, accounts receivable, net, and leasehold receivables. Cash equivalents, short-term investments and long-term investments, which consist of money market funds, corporate debt securities and U.S. government and government agency debt securities, are reported at fair value. Accounts receivable, net and leasehold receivables are stated at the net realizable amount, which approximates fair value. Our financial liabilities consist of accounts payable and accrued liabilities, which are stated at the invoiced or estimated payout amount, respectively, and approximate fair value, contingent consideration obligations as a result of business acquisitions, which are reported at fair value, lease liabilities, which approximate fair value and loans drawn against our Credit Facility; see Note 10 – “Debt” for further discussion on the loans drawn against our Credit Facility. As of March 31, 2019, our contingent consideration obligations represent the estimated fair value of the additional consideration payable in connection with our acquisitions of Gram Games in the second quarter of 2018 and Small Giant in the first quarter of 2019. Under the terms of the Gram Games acquisition, contingent consideration may be payable based on the achievement of certain future profitability performance targets during each annual period following the acquisition date for a total of three years, with no maximum limit as to the contingent consideration achievable. We estimated the acquisition date and subsequent reporting period fair values of the contingent consideration obligation using a Monte Carlo simulation. The significant unobservable inputs used in the fair value measurement of the contingent consideration obligation were Gram Games’ projected performance, a risk-adjusted discount rate and performance volatility similar to industry peers. Changes to projected performance of the acquired business could result in a higher or lower contingent consideration obligation in the future. As of December 31, 2018, the estimated fair value of the Gram Games contingent consideration obligation was $49.0 million and as of March 31, 2019, the estimated fair value of the contingent consideration obligation increased to $75.5 million, primarily due to stronger than expected performance and the increased probability of achievement. Accordingly, for the three months ended March 31, 2019, we recognized $26.5 million of related research and development expenses in our consolidated statement of operations. Under the terms of the Small Giant acquisition, contingent consideration may be payable based on the achievement of certain future profitability performance targets during each annual period following the acquisition date for a total of three years, with no maximum limit as to the contingent consideration achievable. We estimated the acquisition date and subsequent reporting period fair values of the contingent consideration obligation using a Monte Carlo simulation. The significant unobservable inputs used in the fair value measurement of the contingent consideration obligation were Small Giant’s projected performance, a risk-adjusted discount rate and performance volatility similar to industry peers. Changes to projected performance of the acquired business could result in a higher or lower contingent consideration obligation in the future. At acquisition, the estimated fair value of the contingent consideration obligation was $98.0 million. As of March 31, 2019, the estimated fair value of the contingent consideration obligation increased to $157.0 million, primarily due to stronger than expected performance and the increased probability of achievement. Accordingly, for the three months ended March 31, 2019, we recognized $59.0 million of related research and development expense in our consolidated statement of operations. We estimate fair value as the exit price, which represents the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between knowledgeable and willing market participants. The valuation techniques used to measure the fair value of the Company’s financial instruments, all of which have counterparties with high credit ratings, were valued based on quoted market prices or model-driven valuations using significant inputs derived from or corroborated by observable market data. We use a three-tier value hierarchy, which prioritizes the inputs used in measuring fair value as follows: Level 1 — Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets. Level 2 — Includes inputs, other than Level 1 inputs, that are directly or indirectly observable in the marketplace. Level 3 — Unobservable inputs that are supported by little or no market activity. The composition of our financial assets and liabilities as of March 31, 2019 and December 31, 2018 among the three levels of the fair value hierarchy are as follows (in thousands): March 31, 2019 Level 1 Level 2 Level 3 Total Assets: Cash equivalents: Money market funds $ 272 $ — $ — $ 272 Corporate debt securities — 3,994 — 3,994 Short-term investments: Corporate debt securities — 43,693 — 43,693 U.S. government and government agency debt securities — 3,001 — 3,001 Long-term investments: Corporate debt securities — 5,972 — 5,972 Total financial assets $ 272 $ 56,660 $ — $ 56,932 Liabilities: Contingent consideration $ — $ — $ 232,500 $ 232,500 December 31, 2018 Level 1 Level 2 Level 3 Total Assets: Cash equivalents: Money market funds $ 565 $ — $ — $ 565 Corporate debt securities — 4,987 — 4,987 Short-term investments: Corporate debt securities — 36,232 — 36,232 Total financial assets $ 565 $ 41,219 $ — $ 41,784 Liabilities: Contingent consideration $ — $ — $ 49,000 $ 49,000 The following table presents the activity for the three months ended March 31, 2019 related to our Level 3 liabilities (in thousands): Level 3 Liabilities: Total Contingent consideration obligation – December 31, 2018 $ 49,000 Additions 98,000 Fair value adjustments 85,500 Contingent consideration obligation – March 31, 2019 $ 232,500 We had no transfers between valuation levels from December 31, 2018 to March 31, 2019.

Property and Equipment, Net

Property and Equipment, Net	3 Months Ended
	Mar. 31, 2019
Property Plant And Equipment [Abstract]
Property and Equipment, Net	5. Property and Equipment, Net Property and equipment, net consist of the following (in thousands): March 31, December 31, 2019 2018 Computer equipment $ 21,434 $ 20,624 Software 35,163 34,937 Land 89,130 89,130 Building and building improvements 203,659 203,873 Furniture and fixtures 10,524 10,321 Leasehold improvements 9,272 6,144 Total property and equipment, gross $ 369,182 $ 365,029 Less: Accumulated depreciation (101,081 ) (98,472 ) Total property and equipment, net $ 268,101 $ 266,557 The following represents our property and equipment, net by location (in thousands): March 31, December 31, 2019 2018 United States $ 261,170 $ 262,844 All other countries 6,931 3,713 Total property and equipment, net $ 268,101 $ 266,557

Leases

Leases	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Leases	6. Leases Lessee Arrangements We determine if an arrangement is a lease at contract inception. If there is an identified asset in the contract (either explicitly or implicitly) and we have control over its use, the contract is (or contains) a lease. In determining if there is an identified asset, we apply judgment in assessing whether the supplier has a substantive substitution right based on the supplier’s practical ability to substitute the asset and the economic benefit to do so. If it is determined that a substantive substitution right exists, the contract is not a lease and is not accounted for under ASC Topic 842. With the respect to the servers utilized in certain hosting and data storage arrangements, the Company determined that a substantive substitution right existed given the location of the servers at the supplier’s premises, a lack of contractual restrictions preventing the supplier from substituting the servers throughout the period of use and the economic incentive for the supplier to substitute the servers as needed in order to efficiently handle varying levels of demand from its various customers. Our operating leases are primarily for office facilities. Certain leases include options to extend the lease for a set number of years or early terminate the lease prior to the contractually defined expiration date. We include such extension periods in the lease term when it is reasonably certain that they will be exercised and include such periods beyond the early termination date when it is reasonably certain the early terminations will not be exercised. As of March 31, 2019, the weighted-average remaining lease term for our operating leases was 3.5 years. We record right-of-use assets, current operating lease liabilities and noncurrent operating lease liabilities in our consolidated balance sheet for operating leases with lease terms greater than 12 months. We have elected not to apply the balance sheet recognition requirements to leases with lease terms of 12 months or less (“short-term leases”). Additionally, we do not separate lease components from non-lease components and therefore allocate the entire consideration to the lease component(s). Right-of-use assets represent our right to use an underlying asset during the lease term and operating lease liabilities represent our obligation to make lease payments arising from the lease. Right-of-use assets and operating lease liabilities are recognized at the lease commencement date based on the present value of the total required fixed payments over the lease term, with the right-of-use assets further adjusted for any payments made prior to lease commencement, lease incentives received and/or initial direct costs incurred. Certain lease arrangements also include variable payments for costs such as common-area maintenance, utilities, taxes or other operating costs, which are based on a percentage of actual expenses incurred or a fluctuating rate which is unknown at the inception of the contract. These variable lease payments are excluded from the measurement of the lease liability. In determining the present value of lease payments, we discount future lease payments using our incremental borrowing rate since the implicit rate in our various leases is unknown. The incremental borrowing rate is determined at lease commencement for each individual lease and is based on a number of factors, including relevant observable debt transactions, the current economic environment, lease term and currency in which the lease is denominated. As of March 31, 2019, the weighted-average incremental borrowing rate for our operating leases was 5.35%. We recognize lease expense for operating leases and short-term leases on a straight-line basis over the lease term. Variable lease payments are recognized when the underlying uncertainty is resolved, which is generally when the obligation for those costs are incurred. These expenses are presented as operating expenses in the consolidated statement of operations. For the three months ended March 31, 2019, the components of lease expense were as follows (in thousands): Three Months Ended March 31, 2019 Operating lease expense $ 1,778 Variable lease expense 523 Total lease expense (1) $ 2,301 (1) The expense associated with short-term leases with a lease term of greater than one month were not material for the three months ended March 31, 2019. For the three months ended March 31, 2019, supplemental cash and noncash information related to operating leases, excluding any transition adjustments, was as follows (in thousands): Three Months Ended March 31, 2019 Fixed operating lease payments $ 2,273 Right-of-use assets obtained in exchange for operating lease liabilities (noncash) $ 11,076 As of March 31, 2019, future lease payments related to our operating leases were as follows (in thousands): Year ending December 31: Operating Leases Remaining 2019 $ 7,780 2020 9,611 2021 7,860 2022 3,898 2023 2,946 2024 179 Thereafter — Total lease payments 32,274 Less: Imputed interest (3,120 ) Total lease liability balance $ 29,154 As of March 31, 2019, we do not have any leases that have not yet commenced that create significant rights and obligations. During the third quarter of 2018, we executed an assignment of our Oxford office lease associated with our fourth quarter 2017 restructuring plan. The original lease term ends in November 2022, with a lessee option to early terminate in November 2019. All terms under the original lease were assigned in full to the assignee, with the assignee becoming primarily liable to make rental payments directly to the landlord. Further, the assignee was required to provide the landlord a security deposit equal to twelve months rent to be used by the landlord in the event of the assignee’s non-performance. In connection with the assignment, the Company became secondarily liable in the event the assignee is unable to perform under the lease. Based on the current rent and related payments, the maximum exposure to the Company is estimated to be $2.2 million as of March 31, 2019. However, the lease is subject to periodic rate reviews which allow the landlord to make market adjustments to the rent and other related payments and accordingly, the maximum exposure may be greater than this amount. As of March 31, 2019, the fair value of this guarantee is not material. Lessor Arrangements We own the building where our San Francisco headquarters is located and have operating lease arrangements with tenants for the remaining available office space. One tenant currently occupies a portion of the building and will eventually occupy approximately 43% of the building, with the lease term concluding in February 2027. The tenant also has two options to extend the lease term for a period of five years each. The original agreement provides for total lease payments of $167.3 million with escalating lease payments and various lease incentives to be recognized on a straight-line basis over the lease term. In February 2019, the original agreement was amended to provide additional space to the tenant, resulting in an additional $5.1 million of lease payments to be received over the lease term and an additional $0.8 million of lease incentives for tenant improvements. As of March 31, 2019, we have a current lease incentive obligation of $43.8 million related to tenant improvements under this lease. Further, in October 2018, we entered into a lease agreement to provide approximately 17% of our San Francisco headquarters to another tenant expected to commence in May 2019 with the lease term concluding in September 2031. The tenant has an option to extend the lease term for an additional five years. The agreement provides for total lease payments of $145.8 million with escalating lease payments and various lease incentives, including a tenant improvement allowances of $2.4 million. We have operating lease arrangements with other tenants for our owned corporate headquarters, however, the lease payments are not material to the consolidated financial statements. We do not separate lease components from non-lease components and therefore allocate the entire consideration in our contracts to the lease components. All of the lease and non-lease components qualify for accounting under ASC Topic 842. We recognize lease income, net of the lease incentives, within other income (expense), net in the consolidated statement of operations. Variable payments for non-lease components generally include the tenants’ share of the building’s operating expenses, such as common-area maintenance and utilities, which are based on the tenant’s percentage share of total building expenses incurred or a fluctuating rate which is unknown at the inception of the contract. Variable costs are recognized as lease income in the period in which the underlying services are provided. Further, variable payments for the tenant’s share of building related taxes, which are based on a percentage of total building square footage occupied, are recognized as lease income in the period in which the taxes are incurred. For the three months ended March 31, 2019, the components of lease income were as follows (in thousands): Three Months Ended March 31, 2019 Operating lease income $ 4,621 Variable lease income 498 Total lease income $ 5,119 As of March 31, 2019, cash to be received from future operating lease payments were as follows (in thousands): Year ending December 31: Operating Leases Remaining 2019 $ 13,193 2020 25,927 2021 31,521 2022 32,467 2023 33,441 2024 34,444 Thereafter 136,535 Total lease payments $ 307,528

Acquisitions

Acquisitions	3 Months Ended
	Mar. 31, 2019
Business Combinations [Abstract]
Acquisitions	7. Acquisitions Small Giant Acquisition On January 2, 2019, we acquired 80% of all issued and outstanding share capital (including all rights to acquire share capital) of Small Giant, a Finnish Company, to expand our live service portfolio and new game pipeline, for total purchase consideration of $715.5 million. The remaining 20% will be acquired ratably for potential additional cash consideration payable annually based upon the achievement of specified profitability metrics by Small Giant during each of the three years following the closing. The equity rights and privileges of the remaining Small Giant shareholders lack the traditional rights and privileges associated with equity ownership and accordingly, the transaction is accounted for as if the Company acquired 100% of Small Giant on the acquisition date. The future payments associated with Zynga’s acquisition of the remaining 20% represent a contingent consideration obligation. The total purchase consideration included $333.6 million in cash, $30.0 million of cash that was deposited into an escrow account for a period of 18 months as security for general representations and warranties, 63,794,746 shares of our Class A common stock valued at $253.9 million at the acquisition date and contingent consideration of $98.0 million at the acquisition date. We will record changes in the fair value of the contingent consideration within our consolidated statement of operations in each future reporting period as they occur (see Note 4 – “Fair Value Measurements” for further discussion on this estimate). Additionally, in connection with the transaction, the Company executed noncompetition agreements with the management of Small Giant for a term of three years following the acquisition date. However, the acquisition date estimated fair value of the noncompetition agreements was not material. The following table summarizes the acquisition date fair value of the tangible assets, intangible assets, liabilities assumed, contingent consideration payable and related goodwill acquired from Small Giant (in thousands): Total Cash $ 34,193 Accounts receivable, net 22,974 Prepaid expenses 2,561 Intangible assets, net: Developed technology, useful life of 5 years 155,000 Trade names, useful life of 7 years 32,000 Goodwill 529,290 Property and equipment, net 180 Right-of-use assets 883 Other non-current assets 120 Total assets acquired 777,201 Accounts payable (1,716 ) Income tax payable (5,623 ) Operating lease liabilities (380 ) Other current liabilities (16,126 ) Deferred tax liabilities, net (37,400 ) Non-current operating lease liabilities (503 ) Total liabilities (61,748 ) Total purchase price consideration $ 715,453 Fair value of Zynga Stock Consideration (1) (253,903 ) Non-current contingent consideration payable (98,000 ) Total cash consideration $ 363,550 (1) The fair value of the Zynga Stock Consideration above is estimated based on the total shares issued of 63,794,746 and the closing stock price of Zynga’s Common A stock on January 2, 2019 of $3.98 per share. The fair value of our intangible assets, net was determined using a risk-adjusted, discounted cash flow model. Certain amounts noted above are preliminary and subject to change during the respective measurement period (up to one year from the acquisition date) as we obtain additional information for the preliminary fair value estimates of the assets acquired and liabilities assumed. The primary preliminary estimates that are not yet finalized relate to certain tangible assets and liabilities assumed, identifiable intangible assets, income and non-income based taxes and residual goodwill. Goodwill, which is non-deductible for tax purposes, represents the excess of the purchase price over the fair value of the net tangible and intangible assets acquired and is primarily attributable to the assembled workforce of the acquired business and expected synergies at the time of the acquisition. The weighted-average amortization period of the acquired intangible assets was 5.3 years at acquisition. The results of operations from Small Giant have been included in our consolidated statement of operations since the date of acquisition. During the three months ended March 31, 2019, Small Giant represented $12.9 million of our total revenue and $42.9 million of our total net loss. Transaction costs incurred by the Company in connection with the Small Giant acquisition, including transfer taxes and professional fees, were $7.4 million for the three months ended March 31, 2019 and were recorded within general and administrative expenses in our consolidated statements of operations. The following table summarizes the pro forma consolidated information of the Company assuming the acquisition of Small Giant had occurred as of January 1, 2018. The unaudited pro forma information for all periods presented includes the business combination accounting effects resulting from the acquisition, including amortization for intangible assets acquired, depreciation expense for tangible assets acquired, and recognition of tax benefits primarily related to the amortization of the intangible asset deferred tax liability. The unaudited pro forma financial information as presented below is for informational purposes only and is not necessarily indicative of the results of operations that would have been achieved if the acquisition had taken place at the beginning of 2018. Three Months Ended March 31, 2019 2018 Total revenue $ 265,403 $ 221,248 Net loss $ (121,864 ) $ (15,514 ) Basic and diluted earnings per share $ (0.13 ) $ (0.02 ) The significant nonrecurring adjustments reflected in the pro forma consolidated information above include the reclassification of the transactions costs and the related income tax impacts incurred after the acquisition to the earliest period presented. Further, the pro forma consolidated net loss for the three months ended March 31, 2019 includes the $59.0 million of expense recorded to Zynga’s consolidated statement of operations related to the increase in the estimated fair value of the Small Giant contingent consideration payable.

Goodwill and Intangible Assets,

Goodwill and Intangible Assets, Net	3 Months Ended
	Mar. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets, Net	8. Goodwill and Intangible Assets, net The following table presents the changes to goodwill for the three months ended March 31, 2019 (in thousands): Goodwill – December 31, 2018 (1) $ 934,187 Additions 529,290 Foreign currency translation adjustments (2) 7,888 Goodwill – March 31, 2019 (1) $ 1,471,365 (1) There are no accumulated impairment losses at the beginning or end of either period. (2) The increase is primarily related to translation adjustments on goodwill associated with the acquisitions of NaturalMotion and Small Giant, which have functional currencies denominated in British Pounds and the Euro, respectively. The details of our acquisition-related intangible assets as of March 31, 2019 and December 31, 2018 are as follows (in thousands): March 31, 2019 Gross Value Accumulated Amortization Net Book Developed technology $ 418,707 $ (185,129 ) $ 233,578 Trademarks, branding and domain names 64,271 (13,440 ) 50,831 Noncompetition agreements 8,390 (7,806 ) 584 Acquired lease intangibles 5,708 (5,555 ) 153 Total $ 497,076 $ (211,930 ) $ 285,146 December 31, 2018 Gross Value Accumulated Amortization Net Book Developed technology $ 263,720 $ (167,664 ) $ 96,056 Trademarks, branding and domain names 32,772 (11,702 ) 21,070 Noncompetition agreements 8,390 (7,107 ) 1,283 Acquired lease intangibles 5,708 (5,517 ) 191 Total $ 310,590 $ (191,990 ) $ 118,600 Our trademarks, branding and domain names intangible assets include $6.1 million of indefinite-lived intangible assets as of March 31, 2019 and December 31, 2018. The remaining assets were, and continue to be, amortized on a straight-line basis. Amortization expense related to intangible assets was $17.6 million for the three months ended March 31, 2019. Comparatively, amortization expense related to intangible assets was $4.5 million for the three months ended March 31, 2018. As of March 31, 2019, the weighted-average remaining useful lives of our acquired intangible assets are 4.2 years for developed technology, 6.5 years for trademarks, branding and domain names, 1.8 years for noncompetition agreements, 1.2 years for acquired lease intangibles and 4.6 years in total, for all acquired intangible assets. As of March 31, 2019, future amortization expense related to our intangible assets is expected to be recognized as shown below (in thousands): Year ending December 31: Remaining 2019 $ 49,871 2020 66,160 2021 58,610 2022 51,383 2023 40,883 2024 6,786 Thereafter 5,333 Total $ 279,026

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	9. Income Taxes On a consolidated basis, the benefit from income taxes during the three months ended March 31, 2019 was $10.3 million and the provision for income taxes during the three months ended March 31, 2018 was $3.9 million, a change of $14.1 million. The net change was primarily attributable to a benefit generated from the post-acquisition statutory operating losses from Small Giant and Gram Games.

Debt

Debt	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Debt	10. Debt In December 2018, the Company entered into a credit agreement (the “Credit Agreement”) with Bank of America, N.A. that provides for a three-year revolving credit facility (the “Credit Facility”) in an aggregate principal amount of up to $200.0 million and is secured by a blanket lien on the Company’s assets, excluding the Company’s San Francisco corporate headquarters. The Credit Facility will reduce to $150.0 million upon the earlier of (i) a sale of the Company’s corporate headquarters or (ii) the first anniversary of the closing date, unless, within 90 days after such anniversary, the Company mortgages its corporate headquarters as collateral to secure the Credit Facility. The Company may borrow, repay and re-borrow funds under the Credit Agreement until the third anniversary of the closing date, at which time the Credit Facility will terminate, and all outstanding revolving loans, together with all accrued and unpaid interest, must be repaid. Finally, the Company may use the proceeds of future borrowings under the Credit Facility for general corporate purposes. At the Company’s option, revolving loans accrue interest at a per annum rate based on either (i) the base rate plus a margin ranging from 0.50% to 1.00%, determined based on the Company’s consolidated leverage ratio for the four most recent fiscal quarters (the “Consolidated Leverage Ratio”) or (ii) the LIBOR rate (for interest periods of one, two, three or six months) plus a margin ranging from 1.50% to 2.00%, determined based on the Company’s Consolidated Leverage Ratio (“LIBOR Loan”). The base rate is defined as the highest of (i) the federal funds rate, plus 0.50%, (ii) Bank of America, N.A.’s prime rate and (iii) the LIBOR rate for a one-month interest period plus 1.00%. The Company is also obligated to pay an ongoing commitment fee on undrawn amounts at a rate ranging from 0.25% to 0.35%, determined based on the Company’s Consolidated Leverage Ratio. On December 28, 2018, the Company drew against the Credit Facility for a $100.0 million LIBOR Loan, with a three-month interest period at an interest rate of 4.31%. On March 28, 2019, the Company continued the $100.0 million LIBOR loan, for another three-month interest period, at an interest rate of 4.10%. The Company has an additional $100.0 million of borrowing capacity remaining under the Credit Facility as of March 31, 2019. The estimated fair value of the loan drawn against the Credit Facility, which is based on Level 2 inputs, approximated its carrying value as of March 31, 2019. Debt issuance costs associated with the Credit Facility were capitalized and will amortize on a straight-line basis over the three-year term of the Credit Agreement, with the expense recorded to other income (expense), net in our consolidated statement of operations.

Other Current and Non-Current L

Other Current and Non-Current Liabilities	3 Months Ended
	Mar. 31, 2019
Other Liabilities Disclosure [Abstract]
Other Current and Non-Current Liabilities	11. Other Current and Non-Current Liabilities Other current liabilities consist of the following (in thousands): March 31, December 31, 2019 2018 Accrued accounts payable $ 42,703 $ 22,669 Accrued compensation liability 28,568 41,554 Accrued restructuring liability — 3,449 Contingent consideration payable 94,900 17,300 Accrued payable from acquisitions 35,000 35,000 Accrued lease incentive obligation 43,787 24,895 Value-added taxes payable 2,186 2,624 Other current liabilities 10,096 9,338 Total other current liabilities $ 257,240 $ 156,829 Accrued compensation liability represents employee bonus and other payroll withholding expenses. Other current liabilities include various expenses that we accrue for transaction taxes, customer deposits and accrued vendor expenses. Other non-current liabilities consist of the following (in thousands): March 31, December 31, 2019 2018 Contingent consideration obligation $ 137,600 $ 31,700 Accrued payable from acquisitions 30,000 — Accrued restructuring liability — 7,613 Uncertain tax positions liability, including interest and penalties 10,848 10,065 Other non-current liabilities 2,919 3,208 Total other non-current liabilities $ 181,367 $ 52,586

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Stockholders' Equity	12. Stockholders’ Equity We recorded stock-based compensation expense related to grants of employee stock options, restricted stock units (“ZSUs”) and performance-based awards in our consolidated statements of operations as follows (in thousands): Three Months Ended March 31, 2019 2018 Cost of revenue $ 284 $ 431 Research and development 11,715 8,625 Sales and marketing 2,487 1,836 General and administrative 4,287 3,221 Total stock-based compensation expense $ 18,773 $ 14,113 On March 27, 28 and 29, 2019, a director of the Company ratably exercised 3.2 million stock options, of which 2.1 million were unsettled as of March 31, 2019. As a result, the Company recorded a current receivable of $0.4 million as of March 31, 2019 related to the exercise proceeds to be received. Further, the Company recorded a $5.4 million current receivable and payable as of March 31, 2019 related to the tax withholding. The total $5.8 million of cash was subsequently received from the director on April 1 and 2, 2019. The following table shows stock option activity for the three months ended March 31, 2019 (in thousands, except weighted-average exercise price and weighted-average contractual term): Outstanding Options Weighted- Aggregate Weighted- Average Intrinsic Value of Average Exercise Stock Options Contractual Term Stock Options Price Outstanding (in years) Balance as of December 31, 2018 36,185 $ 2.35 $ 57,510 6.23 Granted 4,647 5.37 Forfeited, expired and cancelled — 2.80 Exercised (3,835 ) 0.37 Balance as of March 31, 2019 36,997 $ 2.93 $ 88,970 7.06 The following table presents the weighted-average grant date fair value and the related assumptions used to estimate the fair value of our stock options: Three Months Ended March 31, 2019 Expected term, in years 6 Risk-free interest rates 2.53 % Expected volatility 43 % Dividend yield — Weighted-average estimated fair value of options granted $ 2.41 The following table shows a summary of ZSU activity for the three months ended March 31, 2019 (in thousands, except weighted-average grant date fair value): Outstanding ZSUs Weighted- Average Grant Date Aggregate Fair Value Intrinsic Value of Shares (per share) Unvested ZSUs Unvested as of December 31, 2018 52,482 $ 3.49 $ 206,254 Granted 3,503 5.18 Vested (5,717 ) 3.24 Forfeited (1,051 ) 2.77 Unvested as of March 31, 2019 49,217 $ 3.66 $ 262,332 Stock Repurchases In April 2018, a share repurchase program was authorized for up to $200.0 million of our outstanding Class A common stock (the “2018 Share Repurchase Program”). The timing and amount of any stock repurchase will be determined based on market conditions, share price and other factors. The program does not require us to repurchase any specific number of shares of our Class A common stock and may be modified, suspended or terminated at any time without notice. The 2018 Share Repurchase Program will be funded from existing cash on hand or other sources of funding as the Company may determine to be appropriate. Share repurchases under these authorizations may be made through a variety of methods, which may include open market purchases, privately negotiated transactions, block trades, accelerated share repurchase transactions, purchases through 10b5-1 plans or by any combination of such methods. During the three months ended March 31, 2019, no share repurchases were made under the 2018 Share Repurchase Program. In November 2016, we announced that our Board of Directors authorized a share repurchase program allowing us to repurchase up to $200.0 million of our outstanding shares of Class A common stock (“2016 Share Repurchase Program”). In 2018, we completed the 2016 Share Repurchase Program by repurchasing 18.2 million shares of our Class A common stock at a weighted-average price of $3.59 per share for a total of $65.4 million. All of our stock repurchases were made through open market purchases under Rule 10b5-1 plans and subsequently retired.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	3 Months Ended
	Mar. 31, 2019
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss)	13. Accumulated Other Comprehensive Income (Loss) The following table shows a summary of changes in accumulated other comprehensive income (loss) by component for the three months ended March 31, 2019 (in thousands): Foreign Currency Translation Unrealized Gains (Losses) on Available-For-Sale Marketable Debt Securities Total Balance as of December 31, 2018 $ (118,441 ) $ 2 $ (118,439 ) Other comprehensive income (loss) before reclassifications 6,963 14 6,977 Amounts reclassified from accumulated other comprehensive income (loss) — — — Net other comprehensive income (loss) 6,963 14 6,977 Balance as of March 31, 2019 $ (111,478 ) $ 16 $ (111,462 )

Net Income (Loss) Per Share of

Net Income (Loss) Per Share of Common Stock	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Net Income (Loss) Per Share of Common Stock	14. Net Income (Loss) Per Share of Common Stock On May 2, 2018, our founder, Mark Pincus, elected to convert certain outstanding shares of Class B common stock and all outstanding shares of Class C common stock controlled by Mr. Pincus and an affiliated investment entity into an equivalent number of shares of Class A common stock. As a result of Mr. Pincus’ conversion, the remaining shares of Class B common stock represented less than 10% of the total voting power of all Zynga stockholders and, accordingly, each remaining outstanding share of Class B common stock automatically converted into one share of Class A common stock. Each Zynga stockholder now has one vote per share on all matters subject to stockholder vote. Following the conversion, no shares of Class B or Class C common stock are outstanding and the total number of authorized shares of capital stock will be reduced to account for the elimination of the Class B and Class C common stock. Accordingly, beginning in the second quarter of 2018, the Company calculated basic and dilutive net income (loss) per share under a single-class method. Prior to the conversion noted above, we computed net income (loss) per share of common stock using the two-class method required for participating securities and multiple classes of common stock. Prior to the date of the initial public offering, we considered all series of our convertible preferred stock to be participating securities due to their non-cumulative dividend rights. Additionally, we considered shares issued upon the early exercise of options subject to repurchase and unvested restricted shares to be participating securities, because the holders of such shares have non-forfeitable dividend rights in the event we declare a dividend for common shares. In accordance with the two-class method, net income allocated to these participating securities, which include participation rights in undistributed net income, is subtracted from net income (loss) to determine total net income (loss) to be allocated to common stockholders. Basic net income (loss) per share is computed by dividing net income (loss) attributable to common stockholders by the weighted-average number of common shares outstanding during the period. Diluted net income (loss) per share is computed by dividing net income (loss) attributable to common stockholders by the weighted-average number of common shares outstanding, including potential dilutive securities. In computing diluted net income (loss) per share, net income (loss) attributable to common shareholders is re-allocated to reflect the potential impact of dilutive securities, including stock options, unvested ZSUs, unvested performance-based ZSUs and ESPP withholdings. For periods in which we have generated a net loss or there is no income attributable to common stockholders, we do not include dilutive securities in our calculation of diluted net income (loss) per share, as the impact of these awards is anti-dilutive. The following tables set forth the computation of basic and diluted net income (loss) per share of common stock (in thousands, except per share data): Three Months Ended March 31, 2019 Class A BASIC AND DILUTED: Net income (loss) attributable to common stockholders $ (128,828 ) Weighted-average common shares outstanding 926,230 Net income (loss) per share attributable to common stockholders $ (0.14 ) Three Months Ended March 31, 2018 Class Class Class A B C BASIC: Net income (loss) attributable to common stockholders – basic $ 5,047 $ 430 $ 132 Weighted-average common shares outstanding – basic 782,370 66,740 20,517 Net income (loss) per share attributable to common stockholders – basic $ 0.01 $ 0.01 $ 0.01 DILUTED: Net income (loss) attributable to common stockholders – basic $ 5,047 $ 430 $ 132 Reallocation of net income (loss) as a result of conversion of Class C shares to Class A shares 132 — — Reallocation of net income (loss) as a result of conversion of Class B shares to Class A shares 430 — — Reallocation of net income (loss) to Class B and Class C shares — 41 (3 ) Net income (loss) attributable to common stockholders – diluted $ 5,609 $ 471 $ 129 Weighted-average common shares outstanding – basic 782,370 66,740 20,517 Conversion of Class C to Class A common shares outstanding 20,517 — — Conversion of Class B to Class A common shares outstanding 66,740 — — Weighted-average effect of dilutive securities: Stock options and employee stock purchase plan 10,166 8,296 — ZSUs 12,605 — — Performance-based ZSUs 1,376 — — Weighted-average common shares outstanding – diluted 893,774 75,036 20,517 Net income (loss) per share attributable to common stockholders – diluted $ 0.01 $ 0.01 $ 0.01 The following weighted-average equity awards were excluded from the computation of diluted net income (loss) per share because their effect would have been anti-dilutive for the periods presented (in thousands): Three Months Ended March 31, 2019 2018 Stock options and employee stock purchase plan 36,713 7,374 ZSUs 50,298 3,042 Total 87,011 10,416

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2019
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	15. Commitments and Contingencies The amounts represented in the tables below reflect our minimum cash obligations for the respective calendar years based on contractual terms, but not necessarily the periods in which these costs will be expensed in the Company’s consolidated statement of operations. Licensor and Marketing Commitments We have entered into several contracts with licensors that contain minimum contractual and marketing commitments that may not be dependent on any deliverables. As of March 31, 2019, future minimum contractual royalty payments due to licensors and marketing commitments for the licensed products are as follows (in thousands): Year ending December 31: 2019 $ 11,679 2020 42,328 Thereafter — Total $ 54,007 Other Purchase Commitments We have entered into several contracts primarily for hosting of data systems and other services. As of March 31, 2019, future minimum purchase commitments that have initial or remaining non-cancelable terms are as follows (in thousands): Year ending December 31: 2019 $ 20,382 2020 20,165 2021 9,513 Thereafter — Total $ 50,060 Excluded from tables above is our uncertain income tax position liability of $10.8 million, which includes interest and penalties, as the Company cannot make a reasonably reliable estimate of the period of cash settlement. Legal Matters The Company is involved in legal and regulatory proceedings on an ongoing basis. Some of these proceedings are in early stages and may seek an indeterminate amount of damages. If the Company believes that a loss arising from such matters is probable and can be reasonably estimated, the Company accrues the estimated liability in its financial statements. If only a range of estimated losses can be determined, the Company accrues an amount within the range that, in its judgment, reflects the most likely outcome; if none of the estimates within that range is a better estimate than any other amount, the Company accrues the low end of the range. For proceedings in which an unfavorable outcome is reasonably possible but not probable and an estimate of the loss or range of losses arising from the proceeding can be made, the Company discloses such an estimate, if material. If such a loss or range of losses is not reasonably estimable, the Company discloses that fact. In assessing the materiality of a proceeding, the Company evaluates, among other factors, the amount of monetary damages claimed, as well as the potential impact of non-monetary remedies sought by plaintiffs that may require changes to business practices in a manner that could have a material adverse impact on the Company’s business. Derivative Litigation Since August 3, 2012, eight Beginning on August 3, 2012, three of the actions were filed in San Francisco County Superior Court. On October 2, 2012, the court consolidated those three actions as In re Zynga Shareholder Derivative Litigation On April 24, 2015, the court endorsed a stipulation among the parties staying the action until the Delaware Chancery Court ruled on the defendants’ motion to stay or dismiss in the action described below. On May 2, 2016, the court endorsed a stipulation among the parties staying the action until final resolution of plaintiff’s appeal in the Delaware derivative action that is discussed in further detail below. At a status conference on March 8, 2017, the court stayed the action, in light of the Company’s formation of a special litigation committee discussed below. At a status conference on September 29, 2017, the court extended the stay in the action until April 9, 2018. On April 20, 2018, the Special Litigation Committee (discussed below), acting on the Company’s behalf, filed a motion to dismiss the action on grounds that the appropriate forum for resolution of the action is the Delaware Court of Chancery. On May 25, 2018, plaintiffs’ counsel requested, and the court granted, a voluntary dismissal of the action in its entirety. This action has now been dismissed. Beginning on August 16, 2012, four stockholder derivative actions were filed in the U.S. District Court for the Northern District of California. On December 3, 2012, the court consolidated these four actions as In re Zynga Inc. Derivative Litigation On April 4, 2014, a derivative action was filed in the Court of Chancery of the State of Delaware captioned Sandys v. Pincus, et al. . On December 9, 2014, the defendants filed a motion to stay or dismiss the action. The court held a hearing on defendants’ motion on November 17, 2015, and on February 29, 2016, the court granted the Company’s motion to dismiss. On March 29, 2016, plaintiff filed a notice of appeal of the court’s order dismissing the action. On December 5, 2016, the Delaware Supreme Court reversed the Court of Chancery’s dismissal and remanded the case for further proceedings. On June 7, 2017, the court endorsed a stipulation among the parties staying the action through July 31, 2017, in light of the Company’s formation of a Special Litigation Committee, as noted below. On July 18, 2017, the court endorsed a stipulation among the parties continuing the stay in the action through September 7, 2017. On September 11, 2017, the court endorsed a stipulation among the parties continuing the stay in the action through October 31, 2017. Subsequently, on January 5, 2018, the Special Litigation Committee, acting on behalf of the Company, filed a supplemental motion to stay the action until February 20, 2018, to allow the parties to engage in settlement negotiation. On February 3, 2017, On March 1, 2018, the Special Litigation Committee (on behalf of the Company) and the Sandys In response to the filing of the stipulation of settlement, the plaintiff requested discovery relating to the settlement, and following negotiations over scope of the discovery, the Special Litigation Committee responded with written and oral discovery. Following the close of settlement-related discovery in late October 2018, plaintiff informed the parties that he will endorse the stipulated and proposed settlement as a reasonable exercise of the Special Litigation Committee’s business judgment. Accordingly, the settling parties filed a revised stipulated proposed scheduling order that the court signed and entered on October 30, 2018. The terms of that scheduling order require Zynga to provide shareholder notice of the settlement within 10 business days of the scheduling order’s entry and establish a briefing schedule and a date of January 17, 2019 for a hearing regarding final court approval of the settlement and plaintiff’s application for a related fee and expense award. Following satisfaction of all aspects of the scheduling order, and the lack of any objection by any shareholder, the court held the final approval hearing on January 18, 2019. At the hearing, the court determined the proposed settlement to be fair, adequate, and reasonable, and entered an order approving the $12.0 million settlement and dismissing the underlying action with prejudice. The court also approved a fee award to plaintiff’s counsel in the amount of $2.3 million. The Company has received the $12.0 million settlement proceeds, and has distributed the fee award to plaintiff’s counsel from those proceeds, resulting in a net settlement amount of $9.7 million retained by the Company. The benefit from the net settlement was included in general and administrative expenses in our consolidated statement of operations for the three months ended March 31, 2019. The court’s judgment terminating the action is now final, and the Company considers this matter fully resolved. Other The Company is, at various times, also party to various other legal proceedings and claims not previously discussed which arise in the ordinary course of business. In addition, the Company may receive notifications alleging infringement of patent or other intellectual property rights. Adverse results in any such litigation, legal proceedings or claims may include awards of substantial monetary damages, expensive legal fees, costly royalty or licensing agreements, or orders preventing us from offering certain games, features, or services, and may also result in changes in the Company’s business practices, which could result in additional costs or a loss of revenue and could otherwise harm the Company’s business. Although the results of such litigation cannot be predicted with certainty, the Company believes that the amount or range of reasonably possible losses related to such pending or threatened litigation will not have a material adverse effect on its business, operating results, cash flows, or financial condition should such litigation be resolved unfavorably.

Overview and Summary of Signi_2

Overview and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Basis of Presentation and Consolidation	Basis of Presentation and Consolidation The accompanying interim consolidated financial statements are presented in accordance with United States generally accepted accounting principles (“U.S. GAAP”). The interim consolidated financial statements include the operations of the Company and its owned subsidiaries. All significant intercompany balances and transactions have been eliminated in the consolidation. The accompanying interim consolidated financial statements and these related notes should be read in conjunction with the consolidated financial statements and related notes included in our Annual Report on Form 10-K for the year ended December 31, 2018.
Unaudited Interim Financial Information	Unaudited Interim Financial Information The accompanying interim consolidated balance sheets as of March 31, 2019 and December 31, 2018, the interim consolidated statements of operations, statements of comprehensive income (loss), statements of stockholders’ equity and statements of cash flows for the three months ended March 31, 2019 and 2018 and the notes to interim consolidated financial statements are unaudited. These unaudited interim consolidated financial statements have been prepared in accordance with U.S. GAAP. In management’s opinion, the unaudited interim consolidated financial statements include all adjustments of a normal recurring nature necessary for the fair presentation of the Company’s statement of financial position and operating results for the periods presented. The results for the three months ended March 31, 2019 are not necessarily indicative of the results expected for the full fiscal year or any other future period.
Use Of Estimates	Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts in the interim consolidated financial statements and notes thereto. Significant estimates and assumptions reflected in the financial statements include, but are not limited to, the estimated average playing period of payers that we use for revenue recognition, useful lives of property and equipment and intangible assets, accrued liabilities, income taxes, the fair value of assets and liabilities acquired through business combinations, contingent consideration obligations, the discount rate used in discounting our operating lease liabilities, stock-based compensation expense and evaluation of recoverability of goodwill, intangible assets, and long-lived assets. Actual results could differ materially from those estimates. For the three months ended March 31, 2019, we recognized $0.6 million of online game revenue and income from operations from changes in our estimated average playing period of payers that required adjusting the recognition period of deferred revenue generated in prior periods. Further, we recognized $0.2 million of online game revenue and income from operations from games that have been discontinued as there is no further performance obligation. These changes in estimates did not impact our earnings per share for the three months ended March 31, 2019. For the three months ended March 31, 2018, we recognized $0.4 million of online game revenue and income from operations from games that have been discontinued. This change in estimate did not impact our earnings per share for the three months ended March 31, 2018.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Issued But Not Yet Adopted “Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract” ASC Topic 350-40, Internal-Use Software Issued And Adopted In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842)” “Leases (Topic 842) – Targeted Improvements” Adoption Impact – Lessee Accounting The adoption of ASC Topic 842 on January 1, 2019 resulted in the recognition of right-of-use assets of $9.1 million, which includes the elimination of our remaining prepaid rent and deferred rent balances, current operating lease liabilities of $7.6 million and non-current operating lease liabilities of $12.4 million. The adoption of ASC Topic 842 did not impact our consolidated statement of operations or consolidated statement of cash flows. ASC Topic 842 also amends the provisions of ASC Topic 420 – Exit or Disposal Obligations ASC 360 – Property, Plant, and Equipment As part of the adoption, the new standard allows a number of practical expedients and exemptions. At transition, we elected the following: • The package of practical expedients, which allows us to carryforward our historical lease classification, assessment of whether a contract is or contains a lease and initial direct costs for any leases that exist prior to adoption of the new standard; • The practical expedient to not separate non-lease components from the related lease components; and • The exemption to not apply the balance sheet recognition requirements for leases with a lease term of 12 months or less and instead, expense those costs on a straight-line basis over the lease term, or in the period in which the obligation is incurred, if such costs are variable. Adoption Impact – Lessor Accounting There was no impact to our financial statements as a result of adopting ASC Topic 842. ASU 2018-11, “Leases (Topic 842) – Targeted Improvements” Refer to Note 6 – “Leases” for further details on our lease arrangements as a lessee and lessor.
Acquisition Related Contingent Consideration / Fair Value Measures Liabilities	Under the terms of the Gram Games acquisition, contingent consideration may be payable based on the achievement of certain future profitability performance targets during each annual period following the acquisition date for a total of three years, with no maximum limit as to the contingent consideration achievable. We estimated the acquisition date and subsequent reporting period fair values of the contingent consideration obligation using a Monte Carlo simulation. The significant unobservable inputs used in the fair value measurement of the contingent consideration obligation were Gram Games’ projected performance, a risk-adjusted discount rate and performance volatility similar to industry peers. Changes to projected performance of the acquired business could result in a higher or lower contingent consideration obligation in the future. As of December 31, 2018, the estimated fair value of the Gram Games contingent consideration obligation was $49.0 million and as of March 31, 2019, the estimated fair value of the contingent consideration obligation increased to $75.5 million, primarily due to stronger than expected performance and the increased probability of achievement. Accordingly, for the three months ended March 31, 2019, we recognized $26.5 million of related research and development expenses in our consolidated statement of operations. Under the terms of the Small Giant acquisition, contingent consideration may be payable based on the achievement of certain future profitability performance targets during each annual period following the acquisition date for a total of three years, with no maximum limit as to the contingent consideration achievable. We estimated the acquisition date and subsequent reporting period fair values of the contingent consideration obligation using a Monte Carlo simulation. The significant unobservable inputs used in the fair value measurement of the contingent consideration obligation were Small Giant’s projected performance, a risk-adjusted discount rate and performance volatility similar to industry peers. Changes to projected performance of the acquired business could result in a higher or lower contingent consideration obligation in the future. At acquisition, the estimated fair value of the contingent consideration obligation was $98.0 million. As of March 31, 2019, the estimated fair value of the contingent consideration obligation increased to $157.0 million, primarily due to stronger than expected performance and the increased probability of achievement. Accordingly, for the three months ended March 31, 2019, we recognized $59.0 million of related research and development expense in our consolidated statement of operations.
Fair Value Measurements Investment	We estimate fair value as the exit price, which represents the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between knowledgeable and willing market participants. The valuation techniques used to measure the fair value of the Company’s financial instruments, all of which have counterparties with high credit ratings, were valued based on quoted market prices or model-driven valuations using significant inputs derived from or corroborated by observable market data. We use a three-tier value hierarchy, which prioritizes the inputs used in measuring fair value as follows: Level 1 — Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets. Level 2 — Includes inputs, other than Level 1 inputs, that are directly or indirectly observable in the marketplace. Level 3 — Unobservable inputs that are supported by little or no market activity.
Lessee Arrangements	We determine if an arrangement is a lease at contract inception. If there is an identified asset in the contract (either explicitly or implicitly) and we have control over its use, the contract is (or contains) a lease. In determining if there is an identified asset, we apply judgment in assessing whether the supplier has a substantive substitution right based on the supplier’s practical ability to substitute the asset and the economic benefit to do so. If it is determined that a substantive substitution right exists, the contract is not a lease and is not accounted for under ASC Topic 842. With the respect to the servers utilized in certain hosting and data storage arrangements, the Company determined that a substantive substitution right existed given the location of the servers at the supplier’s premises, a lack of contractual restrictions preventing the supplier from substituting the servers throughout the period of use and the economic incentive for the supplier to substitute the servers as needed in order to efficiently handle varying levels of demand from its various customers. In determining the present value of lease payments, we discount future lease payments using our incremental borrowing rate since the implicit rate in our various leases is unknown. The incremental borrowing rate is determined at lease commencement for each individual lease and is based on a number of factors, including relevant observable debt transactions, the current economic environment, lease term and currency in which the lease is denominated. As of March 31, 2019, the weighted-average incremental borrowing rate for our operating leases was 5.35%.
Leases Income	The original agreement provides for total lease payments of $167.3 million with escalating lease payments and various lease incentives to be recognized on a straight-line basis over the lease term. In February 2019, the original agreement was amended to provide additional space to the tenant, resulting in an additional $5.1 million of lease payments to be received over the lease term and an additional $0.8 million of lease incentives for tenant improvements.
Earnings Per Share	On May 2, 2018, our founder, Mark Pincus, elected to convert certain outstanding shares of Class B common stock and all outstanding shares of Class C common stock controlled by Mr. Pincus and an affiliated investment entity into an equivalent number of shares of Class A common stock. As a result of Mr. Pincus’ conversion, the remaining shares of Class B common stock represented less than 10% of the total voting power of all Zynga stockholders and, accordingly, each remaining outstanding share of Class B common stock automatically converted into one share of Class A common stock. Each Zynga stockholder now has one vote per share on all matters subject to stockholder vote. Following the conversion, no shares of Class B or Class C common stock are outstanding and the total number of authorized shares of capital stock will be reduced to account for the elimination of the Class B and Class C common stock. Accordingly, beginning in the second quarter of 2018, the Company calculated basic and dilutive net income (loss) per share under a single-class method. Prior to the conversion noted above, we computed net income (loss) per share of common stock using the two-class method required for participating securities and multiple classes of common stock. Prior to the date of the initial public offering, we considered all series of our convertible preferred stock to be participating securities due to their non-cumulative dividend rights. Additionally, we considered shares issued upon the early exercise of options subject to repurchase and unvested restricted shares to be participating securities, because the holders of such shares have non-forfeitable dividend rights in the event we declare a dividend for common shares. In accordance with the two-class method, net income allocated to these participating securities, which include participation rights in undistributed net income, is subtracted from net income (loss) to determine total net income (loss) to be allocated to common stockholders. Basic net income (loss) per share is computed by dividing net income (loss) attributable to common stockholders by the weighted-average number of common shares outstanding during the period. Diluted net income (loss) per share is computed by dividing net income (loss) attributable to common stockholders by the weighted-average number of common shares outstanding, including potential dilutive securities. In computing diluted net income (loss) per share, net income (loss) attributable to common shareholders is re-allocated to reflect the potential impact of dilutive securities, including stock options, unvested ZSUs, unvested performance-based ZSUs and ESPP withholdings. For periods in which we have generated a net loss or there is no income attributable to common stockholders, we do not include dilutive securities in our calculation of diluted net income (loss) per share, as the impact of these awards is anti-dilutive.
Legal Contingencies	The Company is involved in legal and regulatory proceedings on an ongoing basis. Some of these proceedings are in early stages and may seek an indeterminate amount of damages. If the Company believes that a loss arising from such matters is probable and can be reasonably estimated, the Company accrues the estimated liability in its financial statements. If only a range of estimated losses can be determined, the Company accrues an amount within the range that, in its judgment, reflects the most likely outcome; if none of the estimates within that range is a better estimate than any other amount, the Company accrues the low end of the range. For proceedings in which an unfavorable outcome is reasonably possible but not probable and an estimate of the loss or range of losses arising from the proceeding can be made, the Company discloses such an estimate, if material. If such a loss or range of losses is not reasonably estimable, the Company discloses that fact. In assessing the materiality of a proceeding, the Company evaluates, among other factors, the amount of monetary damages claimed, as well as the potential impact of non-monetary remedies sought by plaintiffs that may require changes to business practices in a manner that could have a material adverse impact on the Company’s business.
Legal Expenses	Legal expenses are recognized as incurred.

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	3 Months Ended
	Mar. 31, 2019
Revenue From Contract With Customer [Abstract]
Summary of Disaggregated Revenue	The following table presents our revenue disaggregated by platform (in thousands): Three Months Ended March 31, 2019 2018 Online game: Mobile $ 182,833 $ 139,830 Other (1) 17,331 21,723 Online game total $ 200,164 $ 161,553 Advertising and other: Mobile $ 63,260 $ 42,771 Other (1) 1,979 3,908 Advertising and other total $ 65,239 $ 46,679 Total revenue $ 265,403 $ 208,232 (1) Includes web for Online Game and web advertising revenue and other revenue for Advertising and Other The following table presents our revenue disaggregated based on the geographic location of our payers (in thousands): Three Months Ended March 31, 2019 2018 United States $ 172,061 $ 135,996 All other countries (1) 93,342 72,236 Total revenue $ 265,403 $ 208,232 (1) No foreign country exceeded 10% of our total revenue for any periods presented.

Marketable Securities (Tables)

Marketable Securities (Tables)	3 Months Ended
	Mar. 31, 2019
Cash And Cash Equivalents [Abstract]
Summary of Available-for-Sale Short-Term and Long-Term Investments	The following tables summarize the amortized cost, gross unrealized gains and losses and fair value of our short-term and long-term investments as of March 31, 2019 and December 31, 2018 (in thousands): March 31, 2019 Gross Gross Amortized Unrealized Unrealized Aggregate Cost Gains Losses Fair Value Short-term investments: Corporate debt securities $ 43,681 $ 17 $ (5 ) $ 43,693 U.S. government and government agency debt securities 3,001 — — 3,001 Total $ 46,682 $ 17 $ (5 ) $ 46,694 Long-term investments: Corporate debt securities $ 5,968 $ 4 $ — $ 5,972 Total $ 5,968 $ 4 $ — $ 5,972 December 31, 2018 Gross Gross Amortized Unrealized Unrealized Aggregate Cost Gains Losses Fair Value Short-term investments: Corporate debt securities $ 36,230 $ 2 $ — $ 36,232 Total $ 36,230 $ 2 $ — $ 36,232

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Assets and Liabilities Measured on Recurring Basis	The composition of our financial assets and liabilities as of March 31, 2019 and December 31, 2018 among the three levels of the fair value hierarchy are as follows (in thousands): March 31, 2019 Level 1 Level 2 Level 3 Total Assets: Cash equivalents: Money market funds $ 272 $ — $ — $ 272 Corporate debt securities — 3,994 — 3,994 Short-term investments: Corporate debt securities — 43,693 — 43,693 U.S. government and government agency debt securities — 3,001 — 3,001 Long-term investments: Corporate debt securities — 5,972 — 5,972 Total financial assets $ 272 $ 56,660 $ — $ 56,932 Liabilities: Contingent consideration $ — $ — $ 232,500 $ 232,500 December 31, 2018 Level 1 Level 2 Level 3 Total Assets: Cash equivalents: Money market funds $ 565 $ — $ — $ 565 Corporate debt securities — 4,987 — 4,987 Short-term investments: Corporate debt securities — 36,232 — 36,232 Total financial assets $ 565 $ 41,219 $ — $ 41,784 Liabilities: Contingent consideration $ — $ — $ 49,000 $ 49,000
Fair Value Liabilities Measured on Recurring Basis	The following table presents the activity for the three months ended March 31, 2019 related to our Level 3 liabilities (in thousands): Level 3 Liabilities: Total Contingent consideration obligation – December 31, 2018 $ 49,000 Additions 98,000 Fair value adjustments 85,500 Contingent consideration obligation – March 31, 2019 $ 232,500

Property and Equipment, Net (Ta

Property and Equipment, Net (Tables)	3 Months Ended
	Mar. 31, 2019
Property Plant And Equipment [Abstract]
Components of Property and Equipment, Net	Property and equipment, net consist of the following (in thousands): March 31, December 31, 2019 2018 Computer equipment $ 21,434 $ 20,624 Software 35,163 34,937 Land 89,130 89,130 Building and building improvements 203,659 203,873 Furniture and fixtures 10,524 10,321 Leasehold improvements 9,272 6,144 Total property and equipment, gross $ 369,182 $ 365,029 Less: Accumulated depreciation (101,081 ) (98,472 ) Total property and equipment, net $ 268,101 $ 266,557
Property and Equipment, Net	The following represents our property and equipment, net by location (in thousands): March 31, December 31, 2019 2018 United States $ 261,170 $ 262,844 All other countries 6,931 3,713 Total property and equipment, net $ 268,101 $ 266,557

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Schedule of Components of Lease Expense	For the three months ended March 31, 2019, the components of lease expense were as follows (in thousands): Three Months Ended March 31, 2019 Operating lease expense $ 1,778 Variable lease expense 523 Total lease expense (1) $ 2,301 (1) The expense associated with short-term leases with a lease term of greater than one month were not material for the three months ended March 31, 2019.
Schedule of Supplemental Cash Flow and Non-Cash Information Related to Operating Leases Excluding Transition Adjustments	For the three months ended March 31, 2019, supplemental cash and noncash information related to operating leases, excluding any transition adjustments, was as follows (in thousands): Three Months Ended March 31, 2019 Fixed operating lease payments $ 2,273 Right-of-use assets obtained in exchange for operating lease liabilities (noncash) $ 11,076
Schedule of Future Lease Payments Related to Our Operating Leases	As of March 31, 2019, future lease payments related to our operating leases were as follows (in thousands): Year ending December 31: Operating Leases Remaining 2019 $ 7,780 2020 9,611 2021 7,860 2022 3,898 2023 2,946 2024 179 Thereafter — Total lease payments 32,274 Less: Imputed interest (3,120 ) Total lease liability balance $ 29,154
Schedule of Components of Lease Income	For the three months ended March 31, 2019, the components of lease income were as follows (in thousands): Three Months Ended March 31, 2019 Operating lease income $ 4,621 Variable lease income 498 Total lease income $ 5,119
Schedule of Cash To Be Received From Future Operating Lease Payments	As of March 31, 2019, cash to be received from future operating lease payments were as follows (in thousands): Year ending December 31: Operating Leases Remaining 2019 $ 13,193 2020 25,927 2021 31,521 2022 32,467 2023 33,441 2024 34,444 Thereafter 136,535 Total lease payments $ 307,528

Acquisitions (Tables)

Acquisitions (Tables)	3 Months Ended
	Mar. 31, 2019
Business Combinations [Abstract]
Schedule of Acquisition Price Allocation	The following table summarizes the acquisition date fair value of the tangible assets, intangible assets, liabilities assumed, contingent consideration payable and related goodwill acquired from Small Giant (in thousands): Total Cash $ 34,193 Accounts receivable, net 22,974 Prepaid expenses 2,561 Intangible assets, net: Developed technology, useful life of 5 years 155,000 Trade names, useful life of 7 years 32,000 Goodwill 529,290 Property and equipment, net 180 Right-of-use assets 883 Other non-current assets 120 Total assets acquired 777,201 Accounts payable (1,716 ) Income tax payable (5,623 ) Operating lease liabilities (380 ) Other current liabilities (16,126 ) Deferred tax liabilities, net (37,400 ) Non-current operating lease liabilities (503 ) Total liabilities (61,748 ) Total purchase price consideration $ 715,453 Fair value of Zynga Stock Consideration (1) (253,903 ) Non-current contingent consideration payable (98,000 ) Total cash consideration $ 363,550 (1) The fair value of the Zynga Stock Consideration above is estimated based on the total shares issued of 63,794,746 and the closing stock price of Zynga’s Common A stock on January 2, 2019 of $3.98 per share.
Summary of Unaudited Pro Forma Financial Information	The unaudited pro forma financial information as presented below is for informational purposes only and is not necessarily indicative of the results of operations that would have been achieved if the acquisition had taken place at the beginning of 2018. Three Months Ended March 31, 2019 2018 Total revenue $ 265,403 $ 221,248 Net loss $ (121,864 ) $ (15,514 ) Basic and diluted earnings per share $ (0.13 ) $ (0.02 )

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets, Net (Tables)	3 Months Ended
	Mar. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Schedule of Changes to Goodwill	The following table presents the changes to goodwill for the three months ended March 31, 2019 (in thousands): Goodwill – December 31, 2018 (1) $ 934,187 Additions 529,290 Foreign currency translation adjustments (2) 7,888 Goodwill – March 31, 2019 (1) $ 1,471,365 (1) There are no accumulated impairment losses at the beginning or end of either period. (2) The increase is primarily related to translation adjustments on goodwill associated with the acquisitions of NaturalMotion and Small Giant, which have functional currencies denominated in British Pounds and the Euro, respectively.
Acquisition-Related Intangible Assets	The details of our acquisition-related intangible assets as of March 31, 2019 and December 31, 2018 are as follows (in thousands): March 31, 2019 Gross Value Accumulated Amortization Net Book Developed technology $ 418,707 $ (185,129 ) $ 233,578 Trademarks, branding and domain names 64,271 (13,440 ) 50,831 Noncompetition agreements 8,390 (7,806 ) 584 Acquired lease intangibles 5,708 (5,555 ) 153 Total $ 497,076 $ (211,930 ) $ 285,146 December 31, 2018 Gross Value Accumulated Amortization Net Book Developed technology $ 263,720 $ (167,664 ) $ 96,056 Trademarks, branding and domain names 32,772 (11,702 ) 21,070 Noncompetition agreements 8,390 (7,107 ) 1,283 Acquired lease intangibles 5,708 (5,517 ) 191 Total $ 310,590 $ (191,990 ) $ 118,600
Schedule of Finite Lived Intangible Assets Future Amortization Expense	As of March 31, 2019, future amortization expense related to our intangible assets is expected to be recognized as shown below (in thousands): Year ending December 31: Remaining 2019 $ 49,871 2020 66,160 2021 58,610 2022 51,383 2023 40,883 2024 6,786 Thereafter 5,333 Total $ 279,026

Other Current and Non-Current_2

Other Current and Non-Current Liabilities (Tables)	3 Months Ended
	Mar. 31, 2019
Other Liabilities Disclosure [Abstract]
Schedule of Other Current Liabilities	Other current liabilities consist of the following (in thousands): March 31, December 31, 2019 2018 Accrued accounts payable $ 42,703 $ 22,669 Accrued compensation liability 28,568 41,554 Accrued restructuring liability — 3,449 Contingent consideration payable 94,900 17,300 Accrued payable from acquisitions 35,000 35,000 Accrued lease incentive obligation 43,787 24,895 Value-added taxes payable 2,186 2,624 Other current liabilities 10,096 9,338 Total other current liabilities $ 257,240 $ 156,829
Schedule of Other Non-Current Liabilities	Other non-current liabilities consist of the following (in thousands): March 31, December 31, 2019 2018 Contingent consideration obligation $ 137,600 $ 31,700 Accrued payable from acquisitions 30,000 — Accrued restructuring liability — 7,613 Uncertain tax positions liability, including interest and penalties 10,848 10,065 Other non-current liabilities 2,919 3,208 Total other non-current liabilities $ 181,367 $ 52,586

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Stock-Based Compensation Expense Related to Grants of Employee Stock Options, Restricted Stock Units (ZSUs) and Performance-Based Awards	We recorded stock-based compensation expense related to grants of employee stock options, restricted stock units (“ZSUs”) and performance-based awards in our consolidated statements of operations as follows (in thousands): Three Months Ended March 31, 2019 2018 Cost of revenue $ 284 $ 431 Research and development 11,715 8,625 Sales and marketing 2,487 1,836 General and administrative 4,287 3,221 Total stock-based compensation expense $ 18,773 $ 14,113
Schedule of Share Based Compensation Stock Option Activity	The following table shows stock option activity for the three months ended March 31, 2019 (in thousands, except weighted-average exercise price and weighted-average contractual term): Outstanding Options Weighted- Aggregate Weighted- Average Intrinsic Value of Average Exercise Stock Options Contractual Term Stock Options Price Outstanding (in years) Balance as of December 31, 2018 36,185 $ 2.35 $ 57,510 6.23 Granted 4,647 5.37 Forfeited, expired and cancelled — 2.80 Exercised (3,835 ) 0.37 Balance as of March 31, 2019 36,997 $ 2.93 $ 88,970 7.06
Weighted-Average Grant Date Fair Value of Stock Options and Related Assumptions	The following table presents the weighted-average grant date fair value and the related assumptions used to estimate the fair value of our stock options: Three Months Ended March 31, 2019 Expected term, in years 6 Risk-free interest rates 2.53 % Expected volatility 43 % Dividend yield — Weighted-average estimated fair value of options granted $ 2.41
Schedule of Share Based Compensation Restricted Stock Units Award Activity	The following table shows a summary of ZSU activity for the three months ended March 31, 2019 (in thousands, except weighted-average grant date fair value): Outstanding ZSUs Weighted- Average Grant Date Aggregate Fair Value Intrinsic Value of Shares (per share) Unvested ZSUs Unvested as of December 31, 2018 52,482 $ 3.49 $ 206,254 Granted 3,503 5.18 Vested (5,717 ) 3.24 Forfeited (1,051 ) 2.77 Unvested as of March 31, 2019 49,217 $ 3.66 $ 262,332

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table shows a summary of changes in accumulated other comprehensive income (loss) by component for the three months ended March 31, 2019 (in thousands): Foreign Currency Translation Unrealized Gains (Losses) on Available-For-Sale Marketable Debt Securities Total Balance as of December 31, 2018 $ (118,441 ) $ 2 $ (118,439 ) Other comprehensive income (loss) before reclassifications 6,963 14 6,977 Amounts reclassified from accumulated other comprehensive income (loss) — — — Net other comprehensive income (loss) 6,963 14 6,977 Balance as of March 31, 2019 $ (111,478 ) $ 16 $ (111,462 )

Net Income (Loss) Per Share o_2

Net Income (Loss) Per Share of Common Stock (Tables)	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Schedule of Computation of Basic and Diluted Net Income (Loss) Per Share of Common Stock	The following tables set forth the computation of basic and diluted net income (loss) per share of common stock (in thousands, except per share data): Three Months Ended March 31, 2019 Class A BASIC AND DILUTED: Net income (loss) attributable to common stockholders $ (128,828 ) Weighted-average common shares outstanding 926,230 Net income (loss) per share attributable to common stockholders $ (0.14 ) Three Months Ended March 31, 2018 Class Class Class A B C BASIC: Net income (loss) attributable to common stockholders – basic $ 5,047 $ 430 $ 132 Weighted-average common shares outstanding – basic 782,370 66,740 20,517 Net income (loss) per share attributable to common stockholders – basic $ 0.01 $ 0.01 $ 0.01 DILUTED: Net income (loss) attributable to common stockholders – basic $ 5,047 $ 430 $ 132 Reallocation of net income (loss) as a result of conversion of Class C shares to Class A shares 132 — — Reallocation of net income (loss) as a result of conversion of Class B shares to Class A shares 430 — — Reallocation of net income (loss) to Class B and Class C shares — 41 (3 ) Net income (loss) attributable to common stockholders – diluted $ 5,609 $ 471 $ 129 Weighted-average common shares outstanding – basic 782,370 66,740 20,517 Conversion of Class C to Class A common shares outstanding 20,517 — — Conversion of Class B to Class A common shares outstanding 66,740 — — Weighted-average effect of dilutive securities: Stock options and employee stock purchase plan 10,166 8,296 — ZSUs 12,605 — — Performance-based ZSUs 1,376 — — Weighted-average common shares outstanding – diluted 893,774 75,036 20,517 Net income (loss) per share attributable to common stockholders – diluted $ 0.01 $ 0.01 $ 0.01
Shares excluded from Computation of Diluted Net Income (Loss) per Share	The following weighted-average equity awards were excluded from the computation of diluted net income (loss) per share because their effect would have been anti-dilutive for the periods presented (in thousands): Three Months Ended March 31, 2019 2018 Stock options and employee stock purchase plan 36,713 7,374 ZSUs 50,298 3,042 Total 87,011 10,416

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2019
Commitments And Contingencies Disclosure [Abstract]
Schedule of Future Minimum Contractual Royalty Payments to Licensors and Marketing Commitments	We have entered into several contracts with licensors that contain minimum contractual and marketing commitments that may not be dependent on any deliverables. As of March 31, 2019, future minimum contractual royalty payments due to licensors and marketing commitments for the licensed products are as follows (in thousands): Year ending December 31: 2019 $ 11,679 2020 42,328 Thereafter — Total $ 54,007
Schedule of Future Minimum Purchase Commitments	We have entered into several contracts primarily for hosting of data systems and other services. As of March 31, 2019, future minimum purchase commitments that have initial or remaining non-cancelable terms are as follows (in thousands): Year ending December 31: 2019 $ 20,382 2020 20,165 2021 9,513 Thereafter — Total $ 50,060

Overview and Summary of Signi_3

Overview and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	Jan. 01, 2019	Mar. 31, 2019	Mar. 31, 2018
Revenue Recognition Multiple Deliverable Arrangements [Line Items]
Initial offering period		December 2011
Online game revenue and income from operations		$ 600
Impact on reported earnings per share		$ 0	$ 0
Discontinued online game revenue and income from operations		$ 200	$ 400
Current operating lease liabilities		9,056
Non-current operating lease liabilities		20,098
Lease liability recognized		$ 29,154
ASU 2016-02 [Member]
Revenue Recognition Multiple Deliverable Arrangements [Line Items]
Right-of-use assets	$ 9,100
Current operating lease liabilities	7,600
Non-current operating lease liabilities	12,400
Derecognize restructuring plan liability	10,900
Lease liability recognized	$ 10,900
Operating lease, term		12 months
Lease and nonlease component, description		the lessor practical expedient is limited to circumstances in which the nonlease component or components otherwise would be accounted for under the new revenue guidance and both (i) the timing and pattern of transfer are the same for the nonlease component(s) and associated lease component and (ii) the lease component, if accounted for separately, would be classified as an operating lease.

Revenue from Contracts with C_3

Revenue from Contracts with Customers - Summary of Revenue Disaggregated by Platform (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation Of Revenue [Line Items]
Total revenue	$ 265,403	$ 208,232
Mobile Online Game [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	182,833	139,830
Other Online game [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	17,331	21,723
Online Game [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	200,164	161,553
Mobile Advertising and Other [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	63,260	42,771
Web Advertising and Other [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	1,979	3,908
Advertising and Other [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	$ 65,239	$ 46,679

Revenue from Contracts with C_4

Revenue from Contracts with Customers - Summary of Revenue disaggregated Based on Geographic Location (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation Of Revenue [Line Items]
Total revenue	$ 265,403	$ 208,232
United States [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	172,061	135,996
All Other Countries [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	$ 93,342	$ 72,236

Revenue from Contracts with C_5

Revenue from Contracts with Customers - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation Of Revenue [Line Items]
Current deferred revenue recognized	$ 109.5
Small Giant [Member]
Disaggregation Of Revenue [Line Items]
Accounts receivables, net	$ 23
Minimum [Member]
Disaggregation Of Revenue [Line Items]
Contract payment term related to advertising arrangements	30 days
Maximum [Member]
Disaggregation Of Revenue [Line Items]
Contract payment term related to advertising arrangements	60 days
Durable Virtual Items [Member]
Disaggregation Of Revenue [Line Items]
Estimated weighted average life of product	9 months	9 months
Sales Revenue, Net [Member] | Product Concentration Risk [Member] | Consumable Virtual Items [Member]
Disaggregation Of Revenue [Line Items]
Percentage of online game revenue	34.00%	46.00%
Sales Revenue, Net [Member] | Product Concentration Risk [Member] | Durable Virtual Items [Member]
Disaggregation Of Revenue [Line Items]
Percentage of online game revenue	66.00%	54.00%

Revenue from Contracts with C_6

Revenue from Contracts with Customers - Additional Information (Detail1)	Mar. 31, 2019
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-04-01
Disaggregation Of Revenue [Line Items]
Expected length of unsatisfaction of performance obligations	1 year

Marketable Securities - Summary

Marketable Securities - Summary of Available-for-Sale Short-Term and Long-Term Investments (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Short-term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 46,682	$ 36,230
Gross Unrealized Gains	17	2
Gross Unrealized Losses	(5)
Aggregate Fair Value	46,694	36,232
Long-term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	5,968
Gross Unrealized Gains	4
Aggregate Fair Value	5,972
Corporate Debt Securities [Member] | Short-term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	43,681	36,230
Gross Unrealized Gains	17	2
Gross Unrealized Losses	(5)
Aggregate Fair Value	43,693	$ 36,232
Corporate Debt Securities [Member] | Long-term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	5,968
Gross Unrealized Gains	4
Aggregate Fair Value	5,972
U.S. Goverment and Goverment Agency Debt Securities [Member] | Short-term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	3,001
Aggregate Fair Value	$ 3,001

Marketable Securities - Additio

Marketable Securities - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2019
Maximum [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale short-term investments period of contractual maturities	1 year
Available-for-sale long-term investments period of contractual maturities	2 years
Minimum [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale long-term investments period of contractual maturities	1 year

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Jan. 02, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value assets liabilities transfers between valuation levels	$ 0	$ 0
Gram Games [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration payable, total years	3 years
Contingent consideration obligation	$ 75,500,000	$ 49,000,000
Gram Games [Member] | Research and Development Expense [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration obligation, expense recognized	$ 26,500,000
Small Giant [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration payable, total years	3 years
Contingent consideration obligation	$ 157,000,000		$ 98,000,000
Small Giant [Member] | Research and Development Expense [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration obligation, expense recognized	$ 59,000,000

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value Assets and Liabilities Measured on Recurring Basis (Detail) - Fair Value Measurements Recurring [Member] - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	$ 56,932	$ 41,784
Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities Fair Value Disclosure Recurring	232,500	49,000
Cash Equivalents [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	272	565
Corporate Debt Securities [Member] | Short-term Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	43,693	36,232
Corporate Debt Securities [Member] | Long-term Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	5,972
Corporate Debt Securities [Member] | Cash Equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	3,994	4,987
U.S. Government and Government Agency Debt Securities [Member] | Short-term Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	3,001
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	272	565
Fair Value, Inputs, Level 1 [Member] | Cash Equivalents [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	272	565
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	56,660	41,219
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member] | Short-term Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	43,693	36,232
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member] | Long-term Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	5,972
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member] | Cash Equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	3,994	4,987
Fair Value, Inputs, Level 2 [Member] | U.S. Government and Government Agency Debt Securities [Member] | Short-term Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	3,001
Fair Value, Inputs, Level 3 [Member] | Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities Fair Value Disclosure Recurring	$ 232,500	$ 49,000

Fair Value Measurements - Fai_2

Fair Value Measurements - Fair Value Liabilities Measured on Recurring Basis (Detail) - Fair Value Measurements Recurring [Member] - Fair Value, Inputs, Level 3 [Member] $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration obligation – December 31, 2018	$ 49,000
Additions	98,000
Fair value adjustments	85,500
Contingent consideration obligation – March 31, 2019	$ 232,500

Property and Equipment, Net - C

Property and Equipment, Net - Components of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Property Plant And Equipment [Line Items]
Total property and equipment, gross	$ 369,182	$ 365,029
Less: Accumulated depreciation	(101,081)	(98,472)
Total property and equipment, net	268,101	266,557
Computer Equipment [Member]
Property Plant And Equipment [Line Items]
Total property and equipment, gross	21,434	20,624
Software [Member]
Property Plant And Equipment [Line Items]
Total property and equipment, gross	35,163	34,937
Land [Member]
Property Plant And Equipment [Line Items]
Total property and equipment, gross	89,130	89,130
Building and Building Improvements [Member]
Property Plant And Equipment [Line Items]
Total property and equipment, gross	203,659	203,873
Furniture and Fixtures [Member]
Property Plant And Equipment [Line Items]
Total property and equipment, gross	10,524	10,321
Leasehold Improvements [Member]
Property Plant And Equipment [Line Items]
Total property and equipment, gross	$ 9,272	$ 6,144

Property and Equipment, Net - P

Property and Equipment, Net - Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$ 268,101	$ 266,557
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	261,170	262,844
All Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$ 6,931	$ 3,713

Leases - Addtional Information

Leases - Addtional Information (Detail) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended
	Feb. 28, 2019	Oct. 31, 2018	Mar. 31, 2019
Lessor Lease Description [Line Items]
Operating Lease, weighted average remaining lease term			3 years 6 months
Operating lease, weighted average incremental borrowing rate			5.35%
Lease incentive obligation, current			$ 9,056
San Francisco, California [Member]
Lessor Lease Description [Line Items]
Lease expiration date		Sep. 30, 2031	Feb. 28, 2027
Operating lease, options to extend description			The tenant also has two options to extend the lease term for a period of five years each.
Operating lease, options to extend			true
Operating lease, option to extend lease period			5 years
Rental payments to be received	$ 5,100	$ 145,800	$ 167,300
Building occupancy rate by tenant			43.00%
Lease incentive obligation to pay for tenant improvements	$ 800	$ 2,400
Lease incentive obligation, current			$ 43,800
Percentage of office space leased		17.00%
Lease commencement date		May 31, 2019
Q4 2017 Restructuring Plan [Member]
Lessor Lease Description [Line Items]
Lease term expiration			2022-11
Lessee option to early terminate lease term			2019-11
Terms of assignment			All terms under the original lease were assigned in full to the assignee, with the assignee becoming primarily liable to make rental payments directly to the landlord. Further, the assignee was required to provide the landlord a security deposit equal to twelve months rent to be used by the landlord in the event of the assignee’s non-performance.
Estimated maximum exposure of the guarantee			$ 2,200

Leases - Schedule of Components

Leases - Schedule of Components of Lease Expense (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Operating lease expense	$ 1,778
Variable lease expense	523
Total lease expense	$ 2,301

Leases - Schedule of Supplement

Leases - Schedule of Supplemental Cash Flow and Non-Cash Information Related to Operating Leases Excluding Transition Adjustments (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Fixed operating lease payments	$ 2,273
Right-of-use assets obtained in exchange for operating lease liabilities (noncash)	$ 11,076

Leases - Schedule of Future Lea

Leases - Schedule of Future Lease Payments Related to Our Operating Leases (Detail) $ in Thousands	Mar. 31, 2019USD ($)
Leases [Abstract]
Remaining 2019	$ 7,780
2020	9,611
2021	7,860
2022	3,898
2023	2,946
2024	179
Total lease payments	32,274
Less: Imputed interest	(3,120)
Total lease liability balance	$ 29,154

Leases - Schedule of Componen_2

Leases - Schedule of Components of Lease Income (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Operating lease income	$ 4,621
Variable lease income	498
Total lease income	$ 5,119

Leases - Schedule of Cash To Be

Leases - Schedule of Cash To Be Received From Future Operating Lease Payments (Detail) $ in Thousands	Mar. 31, 2019USD ($)
Leases [Abstract]
Remaining 2019	$ 13,193
2020	25,927
2021	31,521
2022	32,467
2023	33,441
2024	34,444
Thereafter	136,535
Total lease payments	$ 307,528

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail) - USD ($) $ in Thousands		Jan. 02, 2019	Mar. 31, 2019	Mar. 31, 2018
Business Acquisition [Line Items]
Weighted average amortization period of acquired intangible assets			4 years 7 months 6 days
Total revenue			$ 265,403	$ 208,232
Net income (loss)			$ (128,828)	5,609
Noncompetition Agreements [Member]
Business Acquisition [Line Items]
Weighted average amortization period of acquired intangible assets			1 year 9 months 18 days
Common Class A [Member]
Business Acquisition [Line Items]
Net income (loss)			$ (128,828)	$ 5,047
Small Giant [Member]
Business Acquisition [Line Items]
Business acquisition effective date of acquisition		Jan. 2, 2019
Percentage of acquired equity interest		80.00%	100.00%
Business acquisition, cost of acquired entity		$ 715,500
Percentage of potential consideration acquired		20.00%
Business acquisition, cost of acquired entity upfront cash paid		$ 333,600
Business acquisition, retained in escrow		$ 30,000
Business acquisition, escrow period		18 months
Fair value of Zynga Stock Consideration issued	[1]	$ 253,903
Consideration consideration		$ 98,000
Percentage of step in period equity interest acquired		20.00%
Business acquisition cash consideration payable step in period		3 years
Weighted average amortization period of acquired intangible assets		5 years 3 months 18 days
Total revenue			$ 12,900
Net income (loss)			(42,900)
Small Giant [Member] | General and Administrative Expense [Member]
Business Acquisition [Line Items]
Professional fees and transaction taxes			7,400
Small Giant [Member] | Research and Development Expense [Member]
Business Acquisition [Line Items]
Contingent consideration obligation, expense recognized			$ 59,000
Small Giant [Member] | Maximum [Member]
Business Acquisition [Line Items]
Preliminary measurement period		1 year
Small Giant [Member] | Noncompetition Agreements [Member]
Business Acquisition [Line Items]
Intangible assets, useful life		3 years
Small Giant [Member] | Common Class A [Member]
Business Acquisition [Line Items]
Business acquisition consideration by shares		63,794,746
[1]	The fair value of the Zynga Stock Consideration above is estimated based on the total shares issued of 63,794,746 and the closing stock price of Zynga’s Common A stock on January 2, 2019 of $3.98 per share.

Acquisitions - Schedule of Acqu

Acquisitions - Schedule of Acquisition Price Allocation (Detail) - USD ($) $ in Thousands		Mar. 31, 2019	Jan. 02, 2019	Dec. 31, 2018
Intangible assets, net:
Goodwill		$ 1,471,365		$ 934,187
Small Gaint [Member]
Business Acquisition [Line Items]
Cash			$ 34,193
Accounts receivables, net			22,974
Prepaid expenses			2,561
Intangible assets, net:
Goodwill			529,290
Property and equipment, net			180
Right-of-use assets			883
Other non-current assets			120
Total assets acquired			777,201
Accounts payable			(1,716)
Income tax payable			(5,623)
Operating lease liabilities			(380)
Other current liabilities			(16,126)
Deferred tax liabilities, net			(37,400)
Non-current operating lease liabilities			(503)
Total liabilities			(61,748)
Total purchase price consideration			715,453
Fair value of Zynga Stock Consideration issued	[1]		(253,903)
Non-current contingent consideration payable			(98,000)
Total cash consideration			363,550
Small Gaint [Member] | Developed Technology, Useful Life of 5 Years [Member]
Intangible assets, net:
Intangible assets, net:			155,000
Small Gaint [Member] | Trade Names, Useful Life of 7 Years [Member]
Intangible assets, net:
Intangible assets, net:			$ 32,000
[1]	The fair value of the Zynga Stock Consideration above is estimated based on the total shares issued of 63,794,746 and the closing stock price of Zynga’s Common A stock on January 2, 2019 of $3.98 per share.

Acquisitions - Schedule of Ac_2

Acquisitions - Schedule of Acquisition Price Allocation (Parenthetical) (Detail) - $ / shares	Jan. 02, 2019	Mar. 31, 2019
Common Class A [Member]
Business Acquisition [Line Items]
Consideration transferred by issue of shares		63,795,000
Small Giant [Member] | Common Class A [Member]
Business Acquisition [Line Items]
Consideration transferred by issue of shares	63,794,746
Shares issued, price per share	$ 3.98
Small Giant [Member] | Developed Technology, Useful Life of 5 Years [Member]
Business Acquisition [Line Items]
Intangible assets, useful life	5 years
Small Giant [Member] | Trade Names, Useful Life of 7 Years [Member]
Business Acquisition [Line Items]
Intangible assets, useful life	7 years

Acquisitions - Summary of Unaud

Acquisitions - Summary of Unaudited Pro Forma Financial Information (Detail) - Small Giant [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Business Acquisition [Line Items]
Total revenue	$ 265,403	$ 221,248
Net loss	$ (121,864)	$ (15,514)
Basic and diluted earnings per share	$ (0.13)	$ (0.02)

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets, Net - Schedule of Changes to Goodwill (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Goodwill Roll Forward
Goodwill – December 31, 2018	$ 934,187
Additions	529,290
Foreign currency translation adjustments	7,888
Goodwill – March 31, 2019	$ 1,471,365

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets, Net - Schedule of Changes to Goodwill (Parenthetical) (Detail) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Goodwill Roll Forward
Accumulated impairments losses	$ 0	$ 0

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets, Net - Acquisition-Related Intangible Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 497,076	$ 310,590
Accumulated Amortization	(211,930)	(191,990)
Net Book Value	285,146	118,600
Developed Technology [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	418,707	263,720
Accumulated Amortization	(185,129)	(167,664)
Net Book Value	233,578	96,056
Trademarks, Branding and Domain Names [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	64,271	32,772
Accumulated Amortization	(13,440)	(11,702)
Net Book Value	50,831	21,070
Noncompetition Agreements [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	8,390	8,390
Accumulated Amortization	(7,806)	(7,107)
Net Book Value	584	1,283
Acquired Lease Intangibles [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	5,708	5,708
Accumulated Amortization	(5,555)	(5,517)
Net Book Value	$ 153	$ 191

Goodwill and Intangible Asset_6

Goodwill and Intangible Assets, Net - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Finite Lived Intangible Assets [Line Items]
Weighted-average remaining useful lives of acquired intangible assets	4 years 7 months 6 days
Amortization Expense	$ 17.6	$ 4.5
Trademarks, Branding and Domain Names [Member]
Finite Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 6.1		$ 6.1
Weighted-average remaining useful lives of acquired intangible assets	6 years 6 months
Developed Technology [Member]
Finite Lived Intangible Assets [Line Items]
Weighted-average remaining useful lives of acquired intangible assets	4 years 2 months 12 days
Acquired Lease Intangibles [Member]
Finite Lived Intangible Assets [Line Items]
Weighted-average remaining useful lives of acquired intangible assets	1 year 2 months 12 days
Noncompetition Agreements [Member]
Finite Lived Intangible Assets [Line Items]
Weighted-average remaining useful lives of acquired intangible assets	1 year 9 months 18 days

Goodwill and Intangible Asset_7

Goodwill and Intangible Assets, Net - Schedule of Finite Lived Intangible Assets Future Amortization Expense (Detail) $ in Thousands	Mar. 31, 2019USD ($)
Finite Lived Intangible Assets Future Amortization Expense Current And Five Succeeding Fiscal Years [Abstract]
Remaining 2019	$ 49,871
2020	66,160
2021	58,610
2022	51,383
2023	40,883
2024	6,786
Thereafter	5,333
Total	$ 279,026

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Provision for (benefit from) income taxes	$ (10,252)	$ 3,859
Increase in income tax expense benefit	$ 14,100

Debt - Additional Information (

Debt - Additional Information (Detail) - Bank of America, N.A. [Member] - USD ($) $ in Millions	Mar. 28, 2019	Dec. 28, 2018	Dec. 31, 2018	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018
Line Of Credit Facility [Line Items]
Borrowings under credit facility	$ 100	$ 100
Additional borrowing capacity remaining under credit facility				$ 100
Credit Facility [Member]
Line Of Credit Facility [Line Items]
Credit facility expiration period	3 months	3 months	3 years
Aggregate principal amount			$ 200		$ 200
Credit facility remaining borrowing capacity			$ 150		$ 150
Debt instrument interest rate, description				At the Company’s option, revolving loans accrue interest at a per annum rate based on either (i) the base rate plus a margin ranging from 0.50% to 1.00%, determined based on the Company’s consolidated leverage ratio for the four most recent fiscal quarters (the “Consolidated Leverage Ratio”) or (ii) the LIBOR rate (for interest periods of one, two, three or six months) plus a margin ranging from 1.50% to 2.00%, determined based on the Company’s Consolidated Leverage Ratio (“LIBOR Loan”). The base rate is defined as the highest of (i) the federal funds rate, plus 0.50%, (ii) Bank of America, N.A.’s prime rate and (iii) the LIBOR rate for a one-month interest period plus 1.00%.
Debt instrument commitment fee, description				The Company is also obligated to pay an ongoing commitment fee on undrawn amounts at a rate ranging from 0.25% to 0.35%, determined based on the Company’s Consolidated Leverage Ratio.
Debt instrumrnt effective interest rate	4.10%	4.31%
Debt capitalized, amortize period				3 years
Credit Facility [Member] | Minimum [Member]
Line Of Credit Facility [Line Items]
Payment for commitment fee, percentage				0.25%
Credit Facility [Member] | Maximum [Member]
Line Of Credit Facility [Line Items]
Payment for commitment fee, percentage				0.35%
Credit Facility [Member] | Base Rate [Member] | Minimum [Member]
Line Of Credit Facility [Line Items]
Debt instrument interest rate				0.50%	0.50%	0.50%	0.50%
Credit Facility [Member] | Base Rate [Member] | Maximum [Member]
Line Of Credit Facility [Line Items]
Debt instrument interest rate				1.00%	1.00%	1.00%	1.00%
Credit Facility [Member] | LIBOR Rate [Member]
Line Of Credit Facility [Line Items]
Debt instrument interest rate				1.00%
Credit Facility [Member] | LIBOR Rate [Member] | Minimum [Member]
Line Of Credit Facility [Line Items]
Debt instrument interest rate				1.50%
Credit Facility [Member] | LIBOR Rate [Member] | Maximum [Member]
Line Of Credit Facility [Line Items]
Debt instrument interest rate				2.00%
Credit Facility [Member] | Federal Funds Rate [Member]
Line Of Credit Facility [Line Items]
Debt instrument interest rate				0.50%

Other Current and Non-Current_3

Other Current and Non-Current Liabilities - Schedule of Other Current Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Other Liabilities Current [Abstract]
Accrued accounts payable	$ 42,703	$ 22,669
Accrued compensation liability	28,568	41,554
Accrued restructuring liability		3,449
Contingent consideration payable	94,900	17,300
Accrued payable from acquisitions	35,000	35,000
Accrued lease incentive obligation	43,787	24,895
Value-added taxes payable	2,186	2,624
Other current liabilities	10,096	9,338
Total other current liabilities	$ 257,240	$ 156,829

Other Current and Non-Current_4

Other Current and Non-Current Liabilities - Schedule of Other Non-Current Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Other Liabilities Noncurrent [Abstract]
Contingent consideration obligation	$ 137,600	$ 31,700
Accrued payable from acquisitions	30,000
Accrued restructuring liability		7,613
Uncertain tax positions liability, including interest and penalties	10,848	10,065
Other non-current liabilities	2,919	3,208
Total other non-current liabilities	$ 181,367	$ 52,586

Stockholders' Equity - Stock-Ba

Stockholders' Equity - Stock-Based Compensation Expense Related to Grants of Employee Stock Options, Restricted Stock Units (ZSUs) and Performance-Based Awards (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 18,773	$ 14,113
Cost of Revenue [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	284	431
Research and Development [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	11,715	8,625
Sales and Marketing [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	2,487	1,836
General and Administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 4,287	$ 3,221

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($)	Apr. 02, 2019	Mar. 29, 2019	Mar. 31, 2019	Dec. 31, 2018	Apr. 30, 2018	Nov. 30, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Current receivable and payables related to tax withholding			$ 5,400,000
Common Class A [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares exercised			5,097,000
2018 Share Repurchase Program [Member] | Common Class A [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Repurchase of common stock			0
2018 Share Repurchase Program [Member] | Common Class A [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock repurchase program, authorized amount					$ 200,000,000
2016 Share Repurchase Program [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Treasury stock acquired, average cost per share				$ 3.59
Stock repurchase program, aggregate number of shares repurchased value				$ 65,400,000
2016 Share Repurchase Program [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock repurchase program, authorized amount						$ 200,000,000
2016 Share Repurchase Program [Member] | Common Class A [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Repurchase of common stock				18.2
Director [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares exercised		3,200,000
Number of unsettled shares			2,100,000
Current receivables from stock option exercises			$ 400,000
Director [Member] | Subsequent Event [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cash received	$ 5,800,000

Stockholders' Equity - Schedule

Stockholders' Equity - Schedule of Share Based Compensation Stock Option Activity (Detail) - Zynga Stock Options [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock Options Outstanding, Beginning balance	36,185
Stock Options, Granted	4,647
Stock Options, Exercised	(3,835)
Stock Options Outstanding, Ending balance	36,997	36,185
Outstanding Options, Weighted Average Exercise Price, Beginning Balance	$ 2.35
Weighted Average Exercise Price, Granted	5.37
Weighted Average Exercise Price, Forfeited, expired and cancelled	2.80
Weighted Average Exercise Price, Exercised	0.37
Outstanding Options, Weighted Average Exercise Price, Ending Balance	$ 2.93	$ 2.35
Outstanding Options, Aggregate Intrinsic Value of Stock Options Outstanding	$ 88,970	$ 57,510
Outstanding Options, Weighted Average Contractual Term (in years)	7 years 21 days	6 years 2 months 23 days

Stockholders' Equity - Weighted

Stockholders' Equity - Weighted-Average Grant Date Fair Value of Stock Options and Related Assumptions (Detail)	3 Months Ended
	Mar. 31, 2019$ / shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Expected term, in years	6 years
Risk-free interest rates	2.53%
Expected volatility	43.00%
Weighted-average estimated fair value of options granted	$ 2.41

Stockholders' Equity - Schedu_2

Stockholders' Equity - Schedule of Share Based Compensation Restricted Stock Units Award Activity (Detail) - Restricted Stock Units (ZSUs) [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unvested Outstanding Shares, Beginning balance	52,482
Unvested Shares, Granted	3,503
Unvested Shares, Vested	(5,717)
Unvested Shares, Forfeited	(1,051)
Unvested Outstanding Shares, Ending balance	49,217
Unvested Weighted Average Grant Date Fair Value, Beginning balance	$ 3.49
Unvested Weighted Average Grant Date Fair Value, Granted	5.18
Unvested Weighted Average Grant Date Fair Value, Vested	3.24
Unvested Weighted Average Grant Date Fair Value, Forfeited	2.77
Unvested Weighted Average Grant Date Fair Value, Ending balance	$ 3.66
Unvested, Aggregate Intrinsic Value of Unvested ZSU	$ 262,332	$ 206,254

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) - Schedule of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance, Value	$ 1,596,610	$ 1,641,240
Other comprehensive income (loss), net of tax	6,977	23,107
Ending balance, Value	1,741,729	1,643,865
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance, Value	(118,441)
Other comprehensive income (loss) before reclassifications, net of tax	6,963
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0
Other comprehensive income (loss), net of tax	6,963
Ending balance, Value	(111,478)
Unrealized Gains (Losses) on Available-For-Sale Marketable Debt Securities [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance, Value	2
Other comprehensive income (loss) before reclassifications, net of tax	14
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0
Other comprehensive income (loss), net of tax	14
Ending balance, Value	16
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance, Value	(118,439)	(93,497)
Other comprehensive income (loss) before reclassifications, net of tax	6,977
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0
Other comprehensive income (loss), net of tax	6,977	23,107
Ending balance, Value	$ (111,462)	$ (70,390)

Net Income (Loss) Per Share o_3

Net Income (Loss) Per Share of Common Stock - Additional Information (Detail)	May 02, 2018Voting_Rightsshares	Mar. 31, 2019shares	Dec. 31, 2018shares
Earnings Per Share Diluted [Line Items]
Conversion of stock description		On May 2, 2018, our founder, Mark Pincus, elected to convert certain outstanding shares of Class B common stock and all outstanding shares of Class C common stock controlled by Mr. Pincus and an affiliated investment entity into an equivalent number of shares of Class A common stock. As a result of Mr. Pincus’ conversion, the remaining shares of Class B common stock represented less than 10% of the total voting power of all Zynga stockholders and, accordingly, each remaining outstanding share of Class B common stock automatically converted into one share of Class A common stock. Each Zynga stockholder now has one vote per share on all matters subject to stockholder vote. Following the conversion, no shares of Class B or Class C common stock are outstanding and the total number of authorized shares of capital stock will be reduced to account for the elimination of the Class B and Class C common stock. Accordingly, beginning in the second quarter of 2018, the Company calculated basic and dilutive net income (loss) per share under a single-class method.
Voting rights per share | Voting_Rights	1
Common Class A [Member]
Earnings Per Share Diluted [Line Items]
Number of shares issued upon conversion of common stock	1
Common stock, shares outstanding		932,490,000	861,111,000
Common Class B [Member]
Earnings Per Share Diluted [Line Items]
Maximum percentage of common stock outstanding required for conversion	10.00%
Common stock, shares outstanding	0
Common Class C [Member]
Earnings Per Share Diluted [Line Items]
Common stock, shares outstanding	0

Net Income (Loss) Per Share o_4

Net Income (Loss) Per Share of Common Stock - Schedule of Computation of Basic and Diluted Net Income (Loss) Per Share of Common Stock (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
BASIC AND DILUTED:
Net income (loss) attributable to common stockholders	$ (128,828)	$ 5,609
BASIC:
Net income (loss) attributable to common stockholders	$ (128,828)	$ 5,609
Weighted-average common shares outstanding – basic	926,230	869,627
Net income (loss) per share attributable to common stockholders – basic	$ (0.14)	$ 0.01
DILUTED:
Weighted-average common shares outstanding – basic	926,230	869,627
Weighted-average common shares outstanding – diluted	926,230	893,774
Net income (loss) per share attributable to common stockholders – diluted	$ (0.14)	$ 0.01
Common Class A [Member]
BASIC AND DILUTED:
Net income (loss) attributable to common stockholders	$ (128,828)	$ 5,047
Weighted-average common shares outstanding	926,230
Net income (loss) per share attributable to common stockholders	$ (0.14)
BASIC:
Net income (loss) attributable to common stockholders	$ (128,828)	$ 5,047
Weighted-average common shares outstanding – basic		782,370
Net income (loss) per share attributable to common stockholders – basic		$ 0.01
DILUTED:
Net income (loss) attributable to common stockholders - basic		$ 5,047
Net income (loss) attributable to common stockholders – diluted		$ 5,609
Weighted-average common shares outstanding – basic		782,370
Weighted-average common shares outstanding – diluted		893,774
Net income (loss) per share attributable to common stockholders – diluted		$ 0.01
Common Class A [Member] | Stock Options and Employee Stock Purchase Plan [Member]
DILUTED:
Weighted-average effect of dilutive securities		10,166
Common Class A [Member] | Restricted Stock Units (ZSUs) [Member]
DILUTED:
Weighted-average effect of dilutive securities		12,605
Common Class A [Member] | Performance Based Restricted Stock Units (ZSUs) [Member]
DILUTED:
Weighted-average effect of dilutive securities		1,376
Common Class A [Member] | Class C Convert To Class A [Member]
DILUTED:
Reallocation of net income (loss) as a result of common stock class conversion		$ 132
Conversion of common stock class		20,517
Common Class A [Member] | Class B convert to Class A [Member]
DILUTED:
Reallocation of net income (loss) as a result of common stock class conversion		$ 430
Conversion of common stock class		66,740
Common Class B [Member]
BASIC AND DILUTED:
Net income (loss) attributable to common stockholders		$ 430
BASIC:
Net income (loss) attributable to common stockholders		$ 430
Weighted-average common shares outstanding – basic		66,740
Net income (loss) per share attributable to common stockholders – basic		$ 0.01
DILUTED:
Net income (loss) attributable to common stockholders - basic		$ 430
Reallocation of net income (loss) to Class B and Class C shares		41
Net income (loss) attributable to common stockholders – diluted		$ 471
Weighted-average common shares outstanding – basic		66,740
Weighted-average common shares outstanding – diluted		75,036
Net income (loss) per share attributable to common stockholders – diluted		$ 0.01
Common Class B [Member] | Stock Options and Employee Stock Purchase Plan [Member]
DILUTED:
Weighted-average effect of dilutive securities		8,296
Common Class C [Member]
BASIC AND DILUTED:
Net income (loss) attributable to common stockholders		$ 132
BASIC:
Net income (loss) attributable to common stockholders		$ 132
Weighted-average common shares outstanding – basic		20,517
Net income (loss) per share attributable to common stockholders – basic		$ 0.01
DILUTED:
Net income (loss) attributable to common stockholders - basic		$ 132
Reallocation of net income (loss) to Class B and Class C shares		(3)
Net income (loss) attributable to common stockholders – diluted		$ 129
Weighted-average common shares outstanding – basic		20,517
Weighted-average common shares outstanding – diluted		20,517
Net income (loss) per share attributable to common stockholders – diluted		$ 0.01

Net Income (Loss) Per Share o_5

Net Income (Loss) Per Share of Common Stock - Shares excluded from Calculation of Diluted Net Income (Loss) per Share (Detail) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from computation of earnings per share amount	87,011	10,416
Stock Options and Employee Stock Purchase Plan [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from computation of earnings per share amount	36,713	7,374
Restricted Stock Units (ZSUs) [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from computation of earnings per share amount	50,298	3,042

Commitments and Contingencies -

Commitments and Contingencies - Schedule of Future Minimum Contractual Royalty Payments to Licensors and Marketing Commitments (Detail) $ in Thousands	Mar. 31, 2019USD ($)
Commitments And Contingencies Disclosure [Abstract]
2019	$ 11,679
2020	42,328
Total	$ 54,007

Commitments and Contingencies_2

Commitments and Contingencies - Schedule of Future Minimum Purchase Commitments (Detail) $ in Thousands	Mar. 31, 2019USD ($)
Commitments And Contingencies Disclosure [Abstract]
2019	$ 20,382
2020	20,165
2021	9,513
Total	$ 50,060

Commitments and Contingencies_3

Commitments and Contingencies - Additional Information (Detail) $ in Thousands	Jan. 18, 2019USD ($)	Apr. 04, 2014Case	Mar. 11, 2013Case	Nov. 19, 2012Case	Aug. 16, 2012Case	Aug. 03, 2012Case	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Loss Contingencies [Line Items]
Uncertain tax positions liability, including interest and penalties | $							$ 10,848	$ 10,065
Settlement amount | $	$ 12,000
Fee award to plaintiff’s counsel, amount | $	2,300
Settlement proceeds amount received | $	12,000
Net settlement proceeds amount received | $	$ 9,700
Delaware [Member]
Loss Contingencies [Line Items]
Claims filed			1
Claims settled				1
Stockholder Derivative Lawsuits [Member]
Loss Contingencies [Line Items]
Claims filed						8
Zynga Shareholder Derivative Litigation [Member] | San Francisco [Member]
Loss Contingencies [Line Items]
Claims filed						3
Zynga Inc. Derivative Litigation [Member] | Northern California [Member]
Loss Contingencies [Line Items]
Claims filed					4
Sandys v. Pincus [Member] | Delaware [Member]
Loss Contingencies [Line Items]
Claims filed		1