Zynga (ZNGA) 10-Q 8 Nov 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 31, 2017
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Trading Symbol	ZNGA
Entity Registrant Name	ZYNGA INC
Entity Central Index Key	1,439,404
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Common Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		781,787,362
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		68,239,013
Common Class C [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		20,517,472

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 517,257	$ 852,467
Marketable securities	254,972
Accounts receivable, net of allowance of $0 at September 30, 2017 and December 31, 2016	89,410	77,260
Income tax receivable	231	296
Restricted cash	8,682	6,199
Prepaid expenses and other current assets	30,718	29,254
Total current assets	901,270	965,476
Goodwill	660,871	613,335
Other intangible assets, net	40,517	25,430
Property and equipment, net	266,121	269,439
Restricted cash	250	3,050
Prepaid expenses and other non-current assets	59,273	29,119
Total assets	1,928,302	1,905,849
Current liabilities:
Accounts payable	16,593	23,999
Income tax payable	3,892	1,889
Other current liabilities	77,768	75,754
Deferred revenue	143,907	141,998
Total current liabilities	242,160	243,640
Deferred revenue	162	158
Deferred tax liabilities, net	6,945	5,791
Other non-current liabilities	48,907	75,596
Total liabilities	298,174	325,185
Stockholders’ equity:
Common stock, $0.00000625 par value, and additional paid in capital - authorized shares: 2,020,517; shares outstanding: 869,416 shares (Class A, 780,660, Class B, 68,239 Class C, 20,517) as of September 30, 2017 and 886,850 (Class A, 770,269, Class B, 96,064, Class C, 20,517) as of December 31, 2016	3,410,816	3,349,714
Accumulated other comprehensive income (loss)	(91,223)	(128,694)
Accumulated deficit	(1,689,465)	(1,640,356)
Total stockholders’ equity	1,630,128	1,580,664
Total liabilities and stockholders’ equity	$ 1,928,302	$ 1,905,849

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Accounts receivable, allowance	$ 0	$ 0
Common stock, par value	$ 0.00000625	$ 0.00000625
Common stock, shares authorized	2,020,517,000	2,020,517,000
Common stock, shares outstanding	869,416,000	886,850,000
Common Class A [Member]
Common stock, shares outstanding	780,660,000	770,269,000
Common Class B [Member]
Common stock, shares outstanding	68,239,000	96,064,000
Common Class C [Member]
Common stock, shares outstanding	20,517,000	20,517,000

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue:
Online game	$ 175,253	$ 134,254	$ 492,479	$ 407,134
Advertising and other	49,342	48,170	135,631	143,746
Total revenue	224,595	182,424	628,110	550,880
Costs and expenses:
Cost of revenue	65,907	62,675	194,956	175,917
Research and development	60,966	73,913	194,783	227,883
Sales and marketing	53,944	49,802	151,765	136,777
General and administrative	23,826	21,656	69,942	69,414
Impairment of intangible assets		20,677		20,677
Total costs and expenses	204,643	228,723	611,446	630,668
Income (loss) from operations	19,952	(46,299)	16,664	(79,788)
Interest income	1,502	800	3,548	2,266
Other income (expense), net	1,181	980	4,231	4,985
Income (loss) before income taxes	22,635	(44,519)	24,443	(72,537)
Provision for (benefit from) income taxes	4,544	(2,782)	10,733	204
Net income (loss)	$ 18,091	$ (41,737)	$ 13,710	$ (72,741)
Net income (loss) per share attributable to common stockholders:
Basic	$ 0.02	$ (0.05)	$ 0.02	$ (0.08)
Diluted	$ 0.02	$ (0.05)	$ 0.02	$ (0.08)
Weighted average common shares used to compute net income (loss) per share attributable to common stockholders:
Basic	867,377	882,408	868,707	875,656
Diluted	893,684	882,408	895,207	875,656

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement Of Partners Capital [Abstract]
Net income (loss)	$ 18,091	$ (41,737)	$ 13,710	$ (72,741)
Other comprehensive income (loss):
Change in foreign currency translation adjustment	20,490	(6,030)	37,479	(54,290)
Net change in unrealized gains (losses) on available-for-sale investments, net of tax	(27)	(7)	(8)	123
Other comprehensive income (loss), net of tax	20,463	(6,037)	37,471	(54,167)
Comprehensive income (loss):	$ 38,554	$ (47,774)	$ 51,181	$ (126,908)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income (loss)	$ 13,710	$ (72,741)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	23,889	32,158
Stock-based compensation expense	49,346	80,982
(Gain) loss from sales of investments, assets and other, net	(206)	160
Accretion and amortization on marketable securities	(172)	322
Change in deferred income taxes and other	4,222	(2,734)
Impairment of intangible assets		20,677
Changes in operating assets and liabilities:
Accounts receivable, net	(12,150)	8,743
Income tax receivable	65	1,711
Other assets	294	(2,519)
Accounts payable	(6,012)	(10,171)
Deferred revenue	1,913	2,121
Income tax payable	2,003
Other liabilities	(8,705)	(26,436)
Net cash provided by (used in) operating activities	68,197	32,273
Cash flows from investing activities:
Purchases of marketable securities	(255,301)
Sales and maturities of marketable securities		240,337
Acquisition of property and equipment	(6,878)	(6,621)
Business acquisitions, net of cash acquired	(35,081)	(33,630)
Proceeds from sale of property and equipment	221	3,035
Other investing activities, net	(7,225)
Net cash provided by (used in) investing activities	(304,264)	203,121
Cash flows from financing activities:
Taxes paid related to net share settlement of stockholders' equity awards	(14,576)	(2,163)
Repurchases of common stock	(96,924)	(112,392)
Proceeds from issuance of common stock	8,249	5,570
Net cash provided by (used in) financing activities	(103,251)	(108,985)
Effect of exchange rate changes on cash and cash equivalents	4,108	(2,307)
Net increase (decrease) in cash and cash equivalents	(335,210)	124,102
Cash and cash equivalents, beginning of period	852,467	742,217
Cash and cash equivalents, end of period	$ 517,257	$ 866,319

Overview and Summary of Signifi

Overview and Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2017
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 revenue through the in-game sale of virtual goods 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, India 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 consolidated financial statements include the operations of us and our wholly-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, 2016. Unaudited Interim Financial Information The accompanying interim consolidated balance sheet as of September 30, 2017, the interim consolidated statements of operations, the interim consolidated statements of comprehensive income (loss) for the three and nine months ended September 30, 2017 and 2016, the interim consolidated statements of cash flows for the nine months ended September 30, 2017 and 2016 and the notes to consolidated financial statements are unaudited. These unaudited consolidated interim financial statements have been prepared in accordance with U.S. GAAP. In management’s opinion, the unaudited consolidated interim 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 and nine months ended September 30, 2017 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 consolidated financial statements and notes thereto. Significant estimates and assumptions reflected in the financial statements include, but are not limited to, the estimated lives of virtual goods that we use for revenue recognition, useful lives of property and equipment and intangible assets, accrued liabilities, income taxes, accounting for business combinations, stock-based compensation expense, and evaluation of goodwill, intangible assets, and long-lived assets for impairment. Actual results could differ materially from those estimates. Changes in our estimated average life of durable goods resulted in an increase in revenue and income from operations of $0.3 million during the three and nine months ended September 30, 2017, which was the result of adjusting the remaining recognition period of deferred revenue generated in prior periods at the time of a change in estimate. There were no changes in our estimated average life for discontinued games that required adjusting the recognition period of deferred revenue generated in prior periods in the three and nine months ended September 30, 2017. These changes in estimates did not impact our earnings per share for the three months ended September 30, 2017. Further, these changes did not impact our basic earnings per share, but had a $0.01 per share impact on our diluted earnings per share, for the nine months ended September 30, 2017. Changes in our estimated average life of durable goods resulted in an increase in revenue and income from operations of $0.5 million during the three months ended September 30, 2016 and $0.5 million during the nine months ended September 30, 2016, which was the result of adjusting the remaining recognition period of deferred revenue generated in prior periods at the time of a change in estimate. We also recognized $0.2 million during the three months ended September 30, 2016 and $3.8 million during the nine months ended September 30, 2016 of revenue and income from operations, due to changes in our estimated average life of durable virtual goods for games that have been discontinued as there is no further service obligation after the closure of these games. These changes in estimates did not impact our reported earnings per share for the three months ended September 30, 2016 and had a $0.01 per share impact on our reported earnings per share in the nine months ended September 30, 2016. Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, “ Revenue from Contracts with Customers (Topic 606), Based on our initial assessment, a key change in the standard that impacts our revenue recognition relates to the explicit collectability threshold a contract must meet before revenue can be recognized. For certain advertising arrangements where we have assessed that collectability is not reasonably assured due to unfavorable payment terms or a history of slow collections, the current practice is to defer revenue recognition until payment is received. However, under the new standard, we will be required to make an assessment of collectability at the inception of the contract and if deemed probable for collection, recognize revenue at the amount we expect to be entitled to as advertisements are delivered, which will result in an acceleration in revenue recognition compared to the current method. While we are still completing our assessment for the population of advertisers under consideration, we do not expect this change to have a material impact on our revenue. We previously disclosed the standard would also have an impact on our software licensing related to NaturalMotion technology, which is currently recognized as revenue over time, rather than a point in time. However, as a result of a restructuring plan we implemented in the second quarter of 2017, we will no longer provide maintenance services for any new software licenses sold after June 30, 2017. Therefore, the requirement to estimate the standalone selling price of software licenses separate from any associated maintenance services and recognize revenue for the license when control is transferred will only apply to a small subset of our existing licensing contracts. While this change will result in an acceleration in revenue recognition compared to the current method, the impact will not be material. We do not anticipate significant changes to our current business processes and systems to support the adoption of the standard in the first quarter of 2018. We are currently in the process of finalizing our transition adjustment and the required disclosures, including the disaggregation of revenue, reconciliation of contract balances and significant judgments used to allow users of our financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with our customers. In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842),” In August 2016, the FASB issued ASU 2016-15, “ Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments,” which provides guidance on specific topics related to how certain cash receipts and cash payments are classified in the statement of cash flows. In November 2016, the FASB issued ASU 2016-18, “ Statement of Cash Flows (Topic 230): Restricted Cash, ” which requires companies to include amounts generally described as restricted cash and restricted cash equivalents in cash and cash equivalents when reconciling beginning-of-period and end-of-period total amounts shown on the statement of cash flows. Both standards are effective for interim and annual reporting periods beginning after December 15, 2017 with early adoption is permitted. We will adopt the standards in the first quarter of 2018. While we continue to assess the potential impact of the new standards, we expect the adoption of these standards will have a material impact on our consolidated financial statements due to the balance of our restricted cash. In January 2017, the FASB issued ASU 2017-01, “ Business Combinations (Topic 805) Clarifying the Definition of a Business,” In January 2017, the FASB issued ASU 2017-04, “ Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment,”

Marketable Securities

Marketable Securities	9 Months Ended
	Sep. 30, 2017
Investments Debt And Equity Securities [Abstract]
Marketable Securities	2. Marketable Securities The following table summarizes our amortized cost, gross unrealized gains and losses, and fair value of our available-for-sale marketable securities as of September 30, 2017 (in thousands): September 30, 2017 Gross Gross Amortized Unrealized Unrealized Aggregate Cost Gains Losses Fair Value Corporate debt securities 255,002 — (30 ) 254,972 Total $ 255,002 $ — $ (30 ) $ 254,972 All of our available-for-sale marketable securities have contractual maturities of one year or less as of September 30, 2017. We had no short-term and long-term marketable securities as of December 31, 2016. Changes in market interest rates and bond yields caused certain investments to fall below their cost basis, resulting in unrealized losses on marketable securities. None of these securities were in a material continuous unrealized loss position for more than 12 months. As of September 30, 2017, we did not consider any of our marketable securities 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	9 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	3. Fair Value Measurements Our financial instruments consist of cash equivalents, marketable securities, and accounts receivable. Accounts receivable, net is stated at its carrying value, which approximates fair value. Cash equivalents, which consist of money market funds, U.S. government and government agency securities, and corporate debt securities, are carried at fair value. 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. As of December 31, 2016, our contingent consideration liability represented the estimated fair value of the additional consideration payable in connection with our acquisitions of Zindagi Games, Inc. (“Zindagi”) in the first quarter of 2016 and PuzzleSocial, Inc. (“PuzzleSocial”) in the third quarter of 2016. Under the terms of the acquisition agreements, the contingent consideration of up to $60.0 million for Zindagi and $42.0 million for PuzzleSocial could be payable based on the achievement of certain future performance targets during a period of time following the acquisition date (three years for Zindagi and two and a half years for PuzzleSocial). See further discussion regarding the Zindagi contingent consideration in Note 13 – “Commitments and Contingencies”. We initially estimated the acquisition date fair value of the contingent consideration liabilities using discounted cash flow models, and applied a discount rate that appropriately captured a market participant’s view of the risk associated with the obligations. The significant unobservable inputs used in the fair value measurement of the acquisition-related contingent consideration payable were forecasted future cash flows and the timing of those cash flows, and the risk-adjusted discount rate. During the second quarter of 2017, it was determined the future performance of the acquired games would not meet the required performance targets. As of September 30, 2017, we continue to not expect the future performance of the acquired games to meet the required performance targets for either acquisition. Accordingly, the estimated contingent consideration liabilities for Zindagi and PuzzleSocial remained at zero, which resulted in no impact and a net benefit of $0.9 million recorded to the statement of operations during the three and nine months ended September 30, 2017, respectively. The net benefit during the nine months ended September 30, 2017 was recognized within research and development expense in our consolidated statement of operations. Fair value is a market-based measurement that should be determined based on assumptions that knowledgeable and willing market participants would use in pricing an asset or liability. 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 within the fair value hierarchy are as follows (in thousands): September 30, 2017 Level 1 Level 2 Level 3 Total Assets: Cash and cash equivalents: Money market funds $ 262,759 $ — $ — $ 262,759 Corporate debt securities — 86,659 — 86,659 Short-term investments: Corporate debt securities — 254,972 — 254,972 Total financial assets $ 262,759 $ 341,631 $ — $ 604,390 Liabilities: Contingent consideration $ — $ — $ — $ — December 31, 2016 Level 1 Level 2 Level 3 Total Assets: Cash and cash equivalents: Money market funds $ 439,330 $ — $ — $ 439,330 U.S. government and government agency debt securities — 19,987 — 19,987 Corporate debt securities — 269,767 — 269,767 Total financial assets $ 439,330 $ 289,754 $ — $ 729,084 Liabilities: Contingent consideration $ — $ — $ 901 $ 901 We did not have any transfers between valuation levels from December 31, 2016 to September 30, 2017. The following table presents the activity for the nine months ended September 30, 2017 related to our Level 3 liabilities (in thousands): Level 3 Liabilities: Zindagi PuzzleSocial Total Contingent consideration liability – December 31, 2016 $ 180 $ 721 $ 901 Fair value adjustments (180 ) (721 ) (901 ) Contingent consideration liability – September 30, 2017 $ — $ — $ —

Property and Equipment, Net

Property and Equipment, Net	9 Months Ended
	Sep. 30, 2017
Property Plant And Equipment [Abstract]
Property and Equipment, Net	4. Property and Equipment, net Property and equipment, net consist of the following (in thousands): September 30, December 31, 2017 2016 Computer equipment $ 28,356 $ 27,046 Software 32,051 31,102 Land 89,130 89,130 Building 197,343 197,689 Furniture and fixtures 10,783 10,494 Leasehold improvements 8,712 8,071 Total property and equipment, gross $ 366,375 $ 363,532 Less accumulated depreciation (100,254 ) (94,093 ) Total property and equipment, net $ 266,121 $ 269,439

Acquisitions

Acquisitions	9 Months Ended
	Sep. 30, 2017
Business Combinations [Abstract]
Acquisitions	5. Acquisitions Acquisition of Solitaire Mobile Gaming Applications On February 14, 2017, we purchased Solitaire mobile game applications from Harpan LLC (“Harpan”) and, in connection with the transaction, executed noncompetition agreements with the founders. We acquired these games to expand our card game portfolio. The total consideration paid to Harpan was approximately $42.5 million in cash, of which approximately $35.1 million was allocated to the business combination and the remaining $7.4 million was allocated to the noncompetition agreements with a useful life of 2 years. We refer to the Solitaire mobile games acquired from Harpan as our “Solitaire games”. The following table summarizes the purchase date fair value of acquired net intangible assets from Harpan (in thousands): Total Developed technology, useful life of 5 years $ 20,471 Goodwill 14,610 Total $ 35,081 Goodwill, which is deductible for tax purposes, represents the excess of the purchase price over the fair value of the net intangible assets acquired and is primarily attributable to the expected synergies at the time of the acquisition. The results of operations for our Solitaire games have been included in our consolidated statement of operations since the date of acquisition. Pro forma results of operations related to our acquisition have not been presented as they are not material to our consolidated statement of operations.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets, Net	9 Months Ended
	Sep. 30, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets, Net	6. Goodwill and Other Intangible Assets, net The following table presents the changes to goodwill for the nine months ended September 30, 2017 (in thousands): Goodwill – December 31, 2016 $ 613,335 Additions 14,610 Foreign currency translation and other adjustments (1) 32,926 Goodwill – September 30, 2017 $ 660,871 (1) The increase is primarily related to translation gains on goodwill associated with the acquisition of NaturalMotion which the functional currency is denominated in British Pounds. The details of our acquisition-related intangible assets as of September 30, 2017 are as follows (in thousands): September 30, 2017 Gross Value Accumulated Amortization Net Book Developed technology $ 176,768 $ (147,990 ) $ 28,778 Trademarks, branding and domain names 16,290 (10,170 ) 6,120 Noncompetition agreements 7,390 (2,155 ) 5,235 Acquired lease intangibles 5,708 (5,324 ) 384 Total $ 206,156 $ (165,639 ) $ 40,517 The details of our acquisition-related intangible assets as of December 31, 2016 are as follows (in thousands): December 31, 2016 Gross Value Accumulated Amortization Net Book Developed technology $ 150,826 $ (132,123 ) $ 18,703 Trademarks, branding and domain names 16,290 (10,063 ) 6,227 Acquired lease intangibles 5,708 (5,208 ) 500 Total $ 172,824 $ (147,394 ) $ 25,430 The intangible assets include $6.1 million of indefinite-lived intangible assets as of September 30, 2017 and December 31, 2016. The remaining assets were, and continue to be, amortized on a straight-line basis. Amortization expense related to other intangible assets was $3.5 million and $13.0 million for the three and nine months ended September 30, 2017, respectively. Comparatively, amortization expense related to other intangible assets was $7.4 million and $22.8 million for the three and nine months ended September 30, 2016, respectively. As of September 30, 2017, future amortization expense related to the intangible assets is expected to be recognized as shown below (in thousands): Year ending December 31: Remaining 2017 $ 3,245 2018 12,400 2019 7,548 2020 6,293 2021 4,230 Thereafter 681 Total $ 34,397

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	7. Income Taxes The expense from income taxes increased by $7.3 million and $10.5 million in the three and nine months ended September 30, 2017, respectively, as compared to the same period of the prior year.

Other Current Liabilities

Other Current Liabilities	9 Months Ended
	Sep. 30, 2017
Other Liabilities Disclosure [Abstract]
Other Current Liabilities	8. Other Current Liabilities Other current liabilities consist of the following (in thousands): September 30, December 31, 2017 2016 Accrued accounts payable $ 25,466 $ 24,119 Accrued compensation liability 23,517 22,554 Accrued restructuring liability 3,404 4,987 Other current liabilities 25,381 24,094 Total other current liabilities $ 77,768 $ 75,754 Accrued compensation liability represents employee bonus and other payroll withholding expenses. Accrued restructuring liability represents amounts payable related to our restructuring plans. Other current liabilities include various expenses that we accrue for transaction taxes, customer deposits, vendor expenses and amounts held in escrow related to acquisitions.

Restructuring

Restructuring	9 Months Ended
	Sep. 30, 2017
Restructuring And Related Activities [Abstract]
Restructuring	9. Restructuring Summary of Restructuring Plans During the three and nine months ended September 30, 2017, we recorded the following net restructuring charges within our consolidated statements of operations (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2017 2016 2017 2016 Research and development $ 867 $ — $ 1,200 $ 124 General and administrative 128 (49 ) 373 2,005 Total restructuring charges $ 995 $ (49 ) $ 1,573 $ 2,129 Significant restructuring activities related to the Company's employees and other charges, summarized by plan, are presented in the table below (in thousands): Q3 2017 Q2 2017 Q2 2015 Restructuring Plan Restructuring Plan Restructuring Plan Restructuring liability – December 31, 2016 $ — $ — $ 19,388 Restructuring expense and adjustments 845 1,301 (560 ) Cash payments (838 ) (1,177 ) (3,890 ) Restructuring liability – September 30, 2017 $ 7 $ 124 $ 14,938 Cumulative costs to date, as of September 30, 2017 $ 845 $ 1,301 $ 34,215 Total costs expected to be incurred, as of September 30, 2017 $ 1,011 $ 1,436 $ 34,215 Q3 2017 Restructuring Plan During the third quarter of 2017, we implemented a restructuring plan, which included a reduction in work force to reduce the Company’s long-term cost structure. As a result of ongoing initiatives associated with this restructuring plan, we recorded $0.8 million of expense in the three and nine months ended September 30, 2017, which is included in operating expenses in our consolidated statement of operations. The $0.8 million restructuring charge is comprised of $0.6 million of employee severance costs and $0.2 million of other costs. The remaining liability as of September 30, 2017 is expected to be paid out over the next quarter. Q2 2017 Restructuring Plan During the second quarter of 2017, we implemented a restructuring plan, which included a reduction in work force to reduce the Company’s long-term cost structure. As a result of ongoing initiatives associated with this restructuring plan, we recorded expense of less than $0.1 million and $1.3 million in the three and nine months ended September 30, 2017, respectively, which is included in operating expenses in our consolidated statement of operations. The $1.3 million restructuring charge is comprised of $1.2 million of employee severance costs and $0.1 million of other costs. The remaining liability as of September 30, 2017 is expected to be paid out over the next year. Q2 2015 Restructuring Plan During the second quarter of 2015, we implemented a restructuring plan, which included a reduction in work force to reduce the Company’s long-term cost structure. As a result of ongoing initiatives associated with this restructuring plan, we recorded a net benefit of $0.1 million and $0.6 in the three and nine months ended September 30, 2017, respectively, which is included in operating expenses in our consolidated statement of operations. The remaining liability as of September 30, 2017 is expected to be paid out over the next 4.7 years.

Stockholders' Equity

Stockholders' Equity	9 Months Ended
	Sep. 30, 2017
Equity [Abstract]
Stockholders' Equity	10. Stockholders’ Equity We recorded stock-based compensation expense related to grants of employee and consultant stock options, restricted stock, and restricted stock units (“ZSUs”) in our consolidated statements of operations as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Cost of revenue $ 435 $ 1,049 $ 1,425 $ 2,825 Research and development 10,097 18,662 32,293 63,078 Sales and marketing 1,891 1,541 5,429 5,738 General and administrative 3,166 3,223 10,199 9,341 Total stock-based compensation expense $ 15,589 $ 24,475 $ 49,346 $ 80,982 The following table shows stock option activity for the nine months ended September 30, 2017 (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, 2016 36,858 $ 2.08 $ 26,411 6.81 Granted 848 3.62 Forfeited and cancelled (3,014 ) 3.60 Exercised (2,166 ) 1.29 Balance as of September 30, 2017 32,526 $ 2.03 $ 57,771 6.44 The following table shows a summary of ZSU activity for the nine months ended September 30, 2017 (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, 2016 59,452 $ 2.66 $ 152,792 Granted 16,262 3.36 Vested (15,941 ) 2.84 Forfeited and cancelled (13,862 ) 2.63 Unvested as of September 30, 2017 45,911 $ 2.86 $ 173,544 The following table shows a summary of changes in accumulated other comprehensive income (loss) by component for the nine months ended September 30, 2017 (in thousands): Foreign Currency Translation Unrealized Gains (Losses) on Available-for-Sale Securities Total Balance as of December 31, 2016 $ (128,671 ) $ (23 ) $ (128,694 ) Other comprehensive income (loss) before reclassifications 37,479 (8 ) 37,471 Less: Amounts reclassified from accumulated other comprehensive income (loss) — — — Net current-period other comprehensive income (loss) 37,479 (8 ) 37,471 Balance as of September 30, 2017 $ (91,192 ) $ (31 ) $ (91,223 ) In November 2016, we announced that our Board of Directors authorized a share repurchase program allowing us to repurchase up to $200 million of our outstanding shares of Class A common stock (“2016 Share Repurchase Program”). In the first and second quarter of 2017, we repurchased 34.2 million shares for our Class A common stock under the repurchase program at a weighted average price of $2.70 per share for a total of $92.9 million. In the third quarter of 2017, we did not repurchase any shares under the repurchase program. All shares repurchased under the 2016 Share Repurchase Program were made through open market purchases under 10b5-1 plans, and were subsequently retired.

Net Income (Loss) Per Share of

Net Income (Loss) Per Share of Common Stock	9 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
Net Income (Loss) Per Share of Common Stock	11. Net Income (Loss) Per Share of Common Stock 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. In computing diluted net income (loss) attributable to common stockholders, net income (loss) is re-allocated to reflect the potential impact of dilutive securities, including stock options, warrants, unvested restricted stock and unvested ZSUs. 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. For periods in which we have generated a net loss or there is no income attributable to common stockholders, we do not include stock options, warrants, unvested restricted stock and unvested ZSUs in our computation of diluted net income (loss) per share, as the impact of these awards is anti-dilutive. The net per share amounts are the same for Class A, Class B and Class C common stock because the holders of each class are legally entitled to equal per share distributions whether through dividend or distribution. Further, as we assume the conversion of Class B and Class C common shares into Class A common shares (on a one-to-one basis) for the Class A diluted net income (loss) per share computation, the net income (loss) is equal to total net income (loss) for that computation. The following table sets forth the computation of basic and diluted net income (loss) per share of common stock (in thousands, except per share data): Three Months Ended September 30, 2017 2016 Class Class Class Class Class Class A B C A B C BASIC: Net income (loss) attributable to common stockholders $ 16,240 $ 1,423 $ 428 $ (36,203 ) $ (4,564 ) $ (970 ) Weighted-average common shares outstanding 778,614 68,246 20,517 765,403 96,488 20,517 Basic net income (loss) per share $ 0.02 $ 0.02 $ 0.02 $ (0.05 ) $ (0.05 ) $ (0.05 ) DILUTED: Net income (loss) attributable to common stockholders $ 16,240 $ 1,423 $ 428 $ (36,203 ) $ (4,564 ) $ (970 ) Reallocation of net income (loss) as a result of conversion of Class C shares to Class A shares 428 — — (970 ) — — Reallocation of net income (loss) as a result of conversion of Class B shares to Class A shares 1,423 — — (4,564 ) — — Reallocation of net income (loss) to Class B and Class C shares — 129 (13 ) — — — Net income (loss) attributable to common stockholders-diluted $ 18,091 $ 1,552 $ 415 $ (41,737 ) $ (4,564 ) $ (970 ) Weighted-average common shares outstanding-basic 778,614 68,246 20,517 765,403 96,488 20,517 Conversion of Class C to Class A common shares outstanding 20,517 — — 20,517 — — Conversion of Class B to Class A common shares outstanding 68,246 — — 96,488 — — Weighted-average effect of dilutive securities: Stock options and employee stock purchase plan 10,125 8,438 — — — — ZSUs 15,284 — — — — — Performance-based ZSUs 898 — — — — — Weighted-average common shares outstanding-diluted 893,684 76,684 20,517 882,408 96,488 20,517 Diluted net income (loss) per share $ 0.02 $ 0.02 $ 0.02 $ (0.05 ) $ (0.05 ) $ (0.05 ) Nine Months Ended September 30, 2017 2016 Class Class Class Class Class Class A B C A B C BASIC: Net income (loss) attributable to common stockholders $ 12,223 $ 1,155 $ 324 $ (62,306 ) $ (8,731 ) $ (1,704 ) Weighted-average common shares outstanding 774,917 73,273 20,517 750,038 105,101 20,517 Basic net income (loss) per share $ 0.02 $ 0.02 $ 0.02 $ (0.08 ) $ (0.08 ) $ (0.08 ) DILUTED: Net income (loss) attributable to common stockholders $ 12,223 $ 1,155 $ 324 $ (62,306 ) $ (8,731 ) $ (1,704 ) Reallocation of net income (loss) as a result of conversion of Class C shares to Class A shares 324 — — (1,704 ) — — Reallocation of net income (loss) as a result of conversion of Class B shares to Class A shares 1,155 — — (8,731 ) — — Reallocation of net income (loss) to Class B and Class C shares — 95 (10 ) — — — Net income (loss) attributable to common stockholders-diluted $ 13,702 $ 1,250 $ 314 $ (72,741 ) $ (8,731 ) $ (1,704 ) Weighted-average common shares outstanding-basic 774,917 73,273 20,517 750,038 105,101 20,517 Conversion of Class C to Class A common shares outstanding 20,517 — — 20,517 — — Conversion of Class B to Class A common shares outstanding 73,273 — — 105,101 — — Weighted-average effect of dilutive securities: Stock options and employee stock purchase plan 9,366 8,373 — — — — ZSUs 16,236 — — — — — Performance-based ZSUs 898 — — — — — Weighted-average common shares outstanding-diluted 895,207 81,646 20,517 875,656 105,101 20,517 Diluted net income (loss) per share $ 0.02 $ 0.02 $ 0.02 $ (0.08 ) $ (0.08 ) $ (0.08 ) 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 September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Stock options and employee stock purchase plan 11,859 29,814 17,440 25,817 Restricted shares — 3,344 467 4,165 ZSUs 88 62,587 4,330 62,850 Total 11,947 95,745 22,237 92,832

Leases

Leases	9 Months Ended
	Sep. 30, 2017
Leases [Abstract]
Leases	12. Leases Rental Income During the second quarter of 2017, the Company entered into an industrial gross lease agreement to provide approximately 287 thousand square feet of its office space in San Francisco, California to a tenant for total minimum rental payments of $167.3 million to be received over the term of the lease. The tenant will occupy approximately 43% of the Company owned building, and the agreement provides for escalating rent payments and various lease incentives, including a rent holiday and tenant improvement allowances, that will be straight-lined over the lease term concluding in February 2027. In connection with executing the lease agreement, the Company accrued deferred lease origination costs of $6.5 million. The Company provided the tenant access to the building starting in September 2017, and accordingly recorded both a lease incentive receivable and obligation to pay for $24.9 million of tenant improvements. In addition, the Company commenced its recognition of monthly rental income, net of the lease incentives and amortization of the lease origination costs, within other income and expense, net in the consolidated statement of operations. As of September 30, 2017, cash to be received from future minimum rentals for the noncancelable lease term are as follows (in thousands): Year ending December 31: Remaining 2017 $ — 2018 6,457 2019 11,345 2020 14,369 2021 20,287 Thereafter 114,877 Total $ 167,335 Lease Commitments We have entered into operating leases for office facilities. As of September 30, 2017, future minimum lease payments related to these leases are as follows (in thousands): Year ending December 31: Remaining 2017 $ 1,010 2018 3,895 2019 3,136 2020 1,254 2021 672 Thereafter 33 Total $ 10,000

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2017
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	13. 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 do not necessarily represent 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 guarantee payments and marketing commitments that may not be dependent on any deliverables. As of September 30, 2017, future minimum guarantee royalty payments due to licensors and marketing commitments for the licensed products are as follows (in thousands): Year ending December 31: Remaining 2017 $ 10,782 2018 8,500 2019 8,750 2020 2,250 2021 and thereafter — Total $ 30,282 Other Purchase Commitments We have entered into several contracts for hosting of data systems and other services. As of September 30, 2017, future minimum purchase commitments that have initial or remaining non-cancelable terms are as follows (in thousands): Year ending December 31: Remaining 2017 $ 8,449 2018 5,778 2019 1,950 2020 285 2021 and thereafter — Total $ 16,462 Legal Matters We are 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 we believe that a loss arising from such matters is probable and can be reasonably estimated, we accrue the estimated liability in our financial statements. If only a range of estimated losses can be determined, we accrue an amount within the range that, in our judgment, reflects the most likely outcome; if none of the estimates within that range is a better estimate than any other amount, we accrue 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, we have disclosed such an estimate, if material. If such a loss or range of losses is not reasonably estimable, we have disclosed that fact. In assessing the materiality of a proceeding, we evaluate, 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 us to change our business practices in a manner that could have a material adverse impact on our business. There are no amounts accrued for legal and regulatory proceedings for which we believe a loss is probable as of September 30, 2017. We recognize legal expenses as incurred. Derivative Litigation Since August 3, 2012, eight stockholder derivative lawsuits have been filed in State or Federal courts in California and Delaware purportedly on behalf of the Company against certain current and former directors and executive officers of the Company. The derivative plaintiffs allege that the defendants breached their fiduciary duties and violated California Corporations Code section 25402 in connection with our initial public offering in December 2011 and our secondary offering in April 2012 by allegedly making false or misleading statements regarding the Company’s business and financial projections. 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 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. The derivative actions include claims for, among other things, unspecified damages in favor of the Company, certain corporate actions to purportedly improve the Company’s corporate governance, and an award of costs and expenses to the derivative plaintiffs, including attorneys’ fees. Because the derivative actions are in the early stages of the litigation process, we are not in a position to assess whether any loss or adverse effect on our financial condition is probable or remote, or to estimate the range of potential loss, if any. On February 3, 2017, Mayer et al. v. Zynga On March 31, 2017, Umrao Mayer, George Simmons, Zindagi Games, Inc., and Cam Tech Building, LLC initiated an arbitration against the Company. In their Statement of Claims, the claimants asserted five claims for relief, including breach of contracts, breach of the implied covenant of good faith and fair dealing, estoppel, conversion, and declaratory relief with respect to allegedly unlawful Non-Competition, Non-Solicitation and Non-Disparagement agreements entered into with Messrs. Mayer and Simmons (the “Non-Solicitation Agreements”). The primary allegations made by the claimants are that the Company (i) breached an Asset Purchase Agreement dated December 30, 2015 between Zindagi Games, Inc., Messrs. Mayer and Simmons, and the Company (the “Zindagi Acquisition Agreement”) by failing to provide the claimants an opportunity to achieve an earnout payment, (ii) is unlawfully withholding an escrow payment due under the Zindagi Acquisition Agreement, (iii) improperly terminated Messrs. Mayer and Simmons on November 29, 2016, (iv) breached a lease agreement, and (v) required Messrs. Mayer and Simmons to enter into the Non-Solicitation Agreements, which contained unlawful non-solicitation and non-competition provisions. The claimants assert that they are entitled to compensatory damages in excess of $60 million, the release of $875,000 plus interest being held in escrow, exemplary damages, damages for the remaining lease payments, declaratory relief, and attorneys’ fees and costs. On May 1, 2017, the Company filed its response, including a general denial of the allegations and a counterclaim for $2.5 million due to the termination of Messrs. Mayer and Simmons for “Cause” under the Zindagi Acquisition Agreement. The Company is also seeking its attorneys’ fees and costs. On September 6, 2017, the claimants and the Company agreed to amend certain provisions of the Non-Solicitation Agreements prospectively. However, the Company expressly reserved the right to pursue claims for violation by the claimants of the Non-Solicitation Agreements arising before September 6, 2017. On September 11, 2017, the claimants dismissed their claim for declaratory relief regarding the enforceability of the Non-Solicitation Agreements. On September 26, 2017, the Company amended its response to include new counterclaims for breaches of the contract and fraudulent concealment arising out of allegations that Messrs. Mayer and Simmons improperly handled the Company’s confidential information. The arbitration hearing date has been set for January 29, 2018. While there can be no assurance of favorable outcomes, the Company believes it has meritorious counterclaims and defenses and will vigorously defend this action, and, accordingly, believes a loss, while possible, is not probable for this action. Further, the Company does not believe a reasonable estimate of potential loss or range of potential loss, if any, is determinable at this time. 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, we 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 our business practices, which could result in additional costs or a loss of revenue for us and could otherwise harm our business. Although the results of such litigation cannot be predicted with certainty, we believe that the amount or range of reasonably possible losses related to such pending or threatened litigation will not have a material adverse effect on our business, operating results, cash flows, or financial condition should such litigation be resolved unfavorably.

Geographical Information

Geographical Information	9 Months Ended
	Sep. 30, 2017
Segment Reporting [Abstract]
Geographical Information	14. Geographical Information The following represents our revenue based on the geographic location of our players (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2017 2016 2017 2016 United States $ 145,255 $ 126,412 $ 413,228 $ 375,595 All other countries (1) 79,340 56,012 214,882 175,285 Total revenue $ 224,595 $ 182,424 $ 628,110 $ 550,880 (1) The following represents our property and equipment, net by location (in thousands): September 30, December 31, 2017 2016 United States $ 263,192 $ 267,324 All other countries 2,929 2,115 Total property and equipment, net $ 266,121 $ 269,439

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2017
Subsequent Events [Abstract]
Subsequent Events	15. Subsequent Events On November 1, 2017, the Company entered into a purchase agreement to acquire the mobile card game studio of Peak Oyun Yazilim Ve Pazarlama Anonim Sirketi (Peak Games) for $100.0 million in cash. The acquisition is subject to regulatory approval and is expected to close in December 2017. As the initial accounting for the business combination is incomplete as of the date of this filing, we will record the preliminary purchase price allocation in the fourth quarter of 2017.

Overview and Summary of Signi22

Overview and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2017
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 consolidated financial statements include the operations of us and our wholly-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, 2016.
Unaudited Interim Financial Information	Unaudited Interim Financial Information The accompanying interim consolidated balance sheet as of September 30, 2017, the interim consolidated statements of operations, the interim consolidated statements of comprehensive income (loss) for the three and nine months ended September 30, 2017 and 2016, the interim consolidated statements of cash flows for the nine months ended September 30, 2017 and 2016 and the notes to consolidated financial statements are unaudited. These unaudited consolidated interim financial statements have been prepared in accordance with U.S. GAAP. In management’s opinion, the unaudited consolidated interim 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 and nine months ended September 30, 2017 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 consolidated financial statements and notes thereto. Significant estimates and assumptions reflected in the financial statements include, but are not limited to, the estimated lives of virtual goods that we use for revenue recognition, useful lives of property and equipment and intangible assets, accrued liabilities, income taxes, accounting for business combinations, stock-based compensation expense, and evaluation of goodwill, intangible assets, and long-lived assets for impairment. Actual results could differ materially from those estimates. Changes in our estimated average life of durable goods resulted in an increase in revenue and income from operations of $0.3 million during the three and nine months ended September 30, 2017, which was the result of adjusting the remaining recognition period of deferred revenue generated in prior periods at the time of a change in estimate. There were no changes in our estimated average life for discontinued games that required adjusting the recognition period of deferred revenue generated in prior periods in the three and nine months ended September 30, 2017. These changes in estimates did not impact our earnings per share for the three months ended September 30, 2017. Further, these changes did not impact our basic earnings per share, but had a $0.01 per share impact on our diluted earnings per share, for the nine months ended September 30, 2017. Changes in our estimated average life of durable goods resulted in an increase in revenue and income from operations of $0.5 million during the three months ended September 30, 2016 and $0.5 million during the nine months ended September 30, 2016, which was the result of adjusting the remaining recognition period of deferred revenue generated in prior periods at the time of a change in estimate. We also recognized $0.2 million during the three months ended September 30, 2016 and $3.8 million during the nine months ended September 30, 2016 of revenue and income from operations, due to changes in our estimated average life of durable virtual goods for games that have been discontinued as there is no further service obligation after the closure of these games. These changes in estimates did not impact our reported earnings per share for the three months ended September 30, 2016 and had a $0.01 per share impact on our reported earnings per share in the nine months ended September 30, 2016.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, “ Revenue from Contracts with Customers (Topic 606), Based on our initial assessment, a key change in the standard that impacts our revenue recognition relates to the explicit collectability threshold a contract must meet before revenue can be recognized. For certain advertising arrangements where we have assessed that collectability is not reasonably assured due to unfavorable payment terms or a history of slow collections, the current practice is to defer revenue recognition until payment is received. However, under the new standard, we will be required to make an assessment of collectability at the inception of the contract and if deemed probable for collection, recognize revenue at the amount we expect to be entitled to as advertisements are delivered, which will result in an acceleration in revenue recognition compared to the current method. While we are still completing our assessment for the population of advertisers under consideration, we do not expect this change to have a material impact on our revenue. We previously disclosed the standard would also have an impact on our software licensing related to NaturalMotion technology, which is currently recognized as revenue over time, rather than a point in time. However, as a result of a restructuring plan we implemented in the second quarter of 2017, we will no longer provide maintenance services for any new software licenses sold after June 30, 2017. Therefore, the requirement to estimate the standalone selling price of software licenses separate from any associated maintenance services and recognize revenue for the license when control is transferred will only apply to a small subset of our existing licensing contracts. While this change will result in an acceleration in revenue recognition compared to the current method, the impact will not be material. We do not anticipate significant changes to our current business processes and systems to support the adoption of the standard in the first quarter of 2018. We are currently in the process of finalizing our transition adjustment and the required disclosures, including the disaggregation of revenue, reconciliation of contract balances and significant judgments used to allow users of our financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with our customers. In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842),” In August 2016, the FASB issued ASU 2016-15, “ Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments,” which provides guidance on specific topics related to how certain cash receipts and cash payments are classified in the statement of cash flows. In November 2016, the FASB issued ASU 2016-18, “ Statement of Cash Flows (Topic 230): Restricted Cash, ” which requires companies to include amounts generally described as restricted cash and restricted cash equivalents in cash and cash equivalents when reconciling beginning-of-period and end-of-period total amounts shown on the statement of cash flows. Both standards are effective for interim and annual reporting periods beginning after December 15, 2017 with early adoption is permitted. We will adopt the standards in the first quarter of 2018. While we continue to assess the potential impact of the new standards, we expect the adoption of these standards will have a material impact on our consolidated financial statements due to the balance of our restricted cash. In January 2017, the FASB issued ASU 2017-01, “ Business Combinations (Topic 805) Clarifying the Definition of a Business,” In January 2017, the FASB issued ASU 2017-04, “ Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment,”

Marketable Securities (Tables)

Marketable Securities (Tables)	9 Months Ended
	Sep. 30, 2017
Investments Debt And Equity Securities [Abstract]
Summary of Available-for-Sale Marketable Securities	The following table summarizes our amortized cost, gross unrealized gains and losses, and fair value of our available-for-sale marketable securities as of September 30, 2017 (in thousands): September 30, 2017 Gross Gross Amortized Unrealized Unrealized Aggregate Cost Gains Losses Fair Value Corporate debt securities 255,002 — (30 ) 254,972 Total $ 255,002 $ — $ (30 ) $ 254,972

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
Fair Value Assets and Liabilities Measured on Recurring Basis	The composition of our financial assets and liabilities within the fair value hierarchy are as follows (in thousands): September 30, 2017 Level 1 Level 2 Level 3 Total Assets: Cash and cash equivalents: Money market funds $ 262,759 $ — $ — $ 262,759 Corporate debt securities — 86,659 — 86,659 Short-term investments: Corporate debt securities — 254,972 — 254,972 Total financial assets $ 262,759 $ 341,631 $ — $ 604,390 Liabilities: Contingent consideration $ — $ — $ — $ — December 31, 2016 Level 1 Level 2 Level 3 Total Assets: Cash and cash equivalents: Money market funds $ 439,330 $ — $ — $ 439,330 U.S. government and government agency debt securities — 19,987 — 19,987 Corporate debt securities — 269,767 — 269,767 Total financial assets $ 439,330 $ 289,754 $ — $ 729,084 Liabilities: Contingent consideration $ — $ — $ 901 $ 901
Fair Value Liabilities Measured on Recurring Basis	The following table presents the activity for the nine months ended September 30, 2017 related to our Level 3 liabilities (in thousands): Level 3 Liabilities: Zindagi PuzzleSocial Total Contingent consideration liability – December 31, 2016 $ 180 $ 721 $ 901 Fair value adjustments (180 ) (721 ) (901 ) Contingent consideration liability – September 30, 2017 $ — $ — $ —

Property and Equipment, Net (Ta

Property and Equipment, Net (Tables)	9 Months Ended
	Sep. 30, 2017
Property Plant And Equipment [Abstract]
Components of Property and Equipment, Net	Property and equipment, net consist of the following (in thousands): September 30, December 31, 2017 2016 Computer equipment $ 28,356 $ 27,046 Software 32,051 31,102 Land 89,130 89,130 Building 197,343 197,689 Furniture and fixtures 10,783 10,494 Leasehold improvements 8,712 8,071 Total property and equipment, gross $ 366,375 $ 363,532 Less accumulated depreciation (100,254 ) (94,093 ) Total property and equipment, net $ 266,121 $ 269,439

Acquisitions (Tables)

Acquisitions (Tables)	9 Months Ended
	Sep. 30, 2017
Solitaire Mobile Gaming Applications [Member]
Schedule of Purchase Price Allocation	The following table summarizes the purchase date fair value of acquired net intangible assets from Harpan (in thousands): Total Developed technology, useful life of 5 years $ 20,471 Goodwill 14,610 Total $ 35,081

Goodwill and Other Intangible27

Goodwill and Other Intangible Assets, Net (Tables)	9 Months Ended
	Sep. 30, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
Schedule of Changes to Goodwill	The following table presents the changes to goodwill for the nine months ended September 30, 2017 (in thousands): Goodwill – December 31, 2016 $ 613,335 Additions 14,610 Foreign currency translation and other adjustments (1) 32,926 Goodwill – September 30, 2017 $ 660,871 (1) The increase is primarily related to translation gains on goodwill associated with the acquisition of NaturalMotion which the functional currency is denominated in British Pounds.
Acquisition-Related Intangible Assets	The details of our acquisition-related intangible assets as of September 30, 2017 are as follows (in thousands): September 30, 2017 Gross Value Accumulated Amortization Net Book Developed technology $ 176,768 $ (147,990 ) $ 28,778 Trademarks, branding and domain names 16,290 (10,170 ) 6,120 Noncompetition agreements 7,390 (2,155 ) 5,235 Acquired lease intangibles 5,708 (5,324 ) 384 Total $ 206,156 $ (165,639 ) $ 40,517 The details of our acquisition-related intangible assets as of December 31, 2016 are as follows (in thousands): December 31, 2016 Gross Value Accumulated Amortization Net Book Developed technology $ 150,826 $ (132,123 ) $ 18,703 Trademarks, branding and domain names 16,290 (10,063 ) 6,227 Acquired lease intangibles 5,708 (5,208 ) 500 Total $ 172,824 $ (147,394 ) $ 25,430
Schedule of Finite Lived Intangible Assets Future Amortization Expense	As of September 30, 2017, future amortization expense related to the intangible assets is expected to be recognized as shown below (in thousands): Year ending December 31: Remaining 2017 $ 3,245 2018 12,400 2019 7,548 2020 6,293 2021 4,230 Thereafter 681 Total $ 34,397

Other Current Liabilities (Tabl

Other Current Liabilities (Tables)	9 Months Ended
	Sep. 30, 2017
Other Liabilities Disclosure [Abstract]
Schedule of Other Current Liabilities	Other current liabilities consist of the following (in thousands): September 30, December 31, 2017 2016 Accrued accounts payable $ 25,466 $ 24,119 Accrued compensation liability 23,517 22,554 Accrued restructuring liability 3,404 4,987 Other current liabilities 25,381 24,094 Total other current liabilities $ 77,768 $ 75,754

Restructuring (Tables)

Restructuring (Tables)	9 Months Ended
	Sep. 30, 2017
Restructuring And Related Activities [Abstract]
Summary of Net Restructuring Charges Within Consolidated Statement of Operation	During the three and nine months ended September 30, 2017, we recorded the following net restructuring charges within our consolidated statements of operations (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2017 2016 2017 2016 Research and development $ 867 $ — $ 1,200 $ 124 General and administrative 128 (49 ) 373 2,005 Total restructuring charges $ 995 $ (49 ) $ 1,573 $ 2,129
Summary of Significant Restructuring Plan Activity Related To Employees And Other Charges	Significant restructuring activities related to the Company's employees and other charges, summarized by plan, are presented in the table below (in thousands): Q3 2017 Q2 2017 Q2 2015 Restructuring Plan Restructuring Plan Restructuring Plan Restructuring liability – December 31, 2016 $ — $ — $ 19,388 Restructuring expense and adjustments 845 1,301 (560 ) Cash payments (838 ) (1,177 ) (3,890 ) Restructuring liability – September 30, 2017 $ 7 $ 124 $ 14,938 Cumulative costs to date, as of September 30, 2017 $ 845 $ 1,301 $ 34,215 Total costs expected to be incurred, as of September 30, 2017 $ 1,011 $ 1,436 $ 34,215

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2017
Equity [Abstract]
Stock-Based Compensation Expense Related to Grants of Employee and Consultant Stock Options, Restricted Stock and Restricted Stock Units (ZSUs)	We recorded stock-based compensation expense related to grants of employee and consultant stock options, restricted stock, and restricted stock units (“ZSUs”) in our consolidated statements of operations as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Cost of revenue $ 435 $ 1,049 $ 1,425 $ 2,825 Research and development 10,097 18,662 32,293 63,078 Sales and marketing 1,891 1,541 5,429 5,738 General and administrative 3,166 3,223 10,199 9,341 Total stock-based compensation expense $ 15,589 $ 24,475 $ 49,346 $ 80,982
Schedule of Share Based Compensation Stock Option Activity	The following table shows stock option activity for the nine months ended September 30, 2017 (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, 2016 36,858 $ 2.08 $ 26,411 6.81 Granted 848 3.62 Forfeited and cancelled (3,014 ) 3.60 Exercised (2,166 ) 1.29 Balance as of September 30, 2017 32,526 $ 2.03 $ 57,771 6.44
Schedule of Share Based Compensation Restricted Stock Units Award Activity	The following table shows a summary of ZSU activity for the nine months ended September 30, 2017 (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, 2016 59,452 $ 2.66 $ 152,792 Granted 16,262 3.36 Vested (15,941 ) 2.84 Forfeited and cancelled (13,862 ) 2.63 Unvested as of September 30, 2017 45,911 $ 2.86 $ 173,544
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 nine months ended September 30, 2017 (in thousands): Foreign Currency Translation Unrealized Gains (Losses) on Available-for-Sale Securities Total Balance as of December 31, 2016 $ (128,671 ) $ (23 ) $ (128,694 ) Other comprehensive income (loss) before reclassifications 37,479 (8 ) 37,471 Less: Amounts reclassified from accumulated other comprehensive income (loss) — — — Net current-period other comprehensive income (loss) 37,479 (8 ) 37,471 Balance as of September 30, 2017 $ (91,192 ) $ (31 ) $ (91,223 )

Net Income (Loss) Per Share o31

Net Income (Loss) Per Share of Common Stock (Tables)	9 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
Schedule of Computation of Basic and Diluted Net Income (Loss) Per Share of Common Stock	The following table sets forth the computation of basic and diluted net income (loss) per share of common stock (in thousands, except per share data): Three Months Ended September 30, 2017 2016 Class Class Class Class Class Class A B C A B C BASIC: Net income (loss) attributable to common stockholders $ 16,240 $ 1,423 $ 428 $ (36,203 ) $ (4,564 ) $ (970 ) Weighted-average common shares outstanding 778,614 68,246 20,517 765,403 96,488 20,517 Basic net income (loss) per share $ 0.02 $ 0.02 $ 0.02 $ (0.05 ) $ (0.05 ) $ (0.05 ) DILUTED: Net income (loss) attributable to common stockholders $ 16,240 $ 1,423 $ 428 $ (36,203 ) $ (4,564 ) $ (970 ) Reallocation of net income (loss) as a result of conversion of Class C shares to Class A shares 428 — — (970 ) — — Reallocation of net income (loss) as a result of conversion of Class B shares to Class A shares 1,423 — — (4,564 ) — — Reallocation of net income (loss) to Class B and Class C shares — 129 (13 ) — — — Net income (loss) attributable to common stockholders-diluted $ 18,091 $ 1,552 $ 415 $ (41,737 ) $ (4,564 ) $ (970 ) Weighted-average common shares outstanding-basic 778,614 68,246 20,517 765,403 96,488 20,517 Conversion of Class C to Class A common shares outstanding 20,517 — — 20,517 — — Conversion of Class B to Class A common shares outstanding 68,246 — — 96,488 — — Weighted-average effect of dilutive securities: Stock options and employee stock purchase plan 10,125 8,438 — — — — ZSUs 15,284 — — — — — Performance-based ZSUs 898 — — — — — Weighted-average common shares outstanding-diluted 893,684 76,684 20,517 882,408 96,488 20,517 Diluted net income (loss) per share $ 0.02 $ 0.02 $ 0.02 $ (0.05 ) $ (0.05 ) $ (0.05 ) Nine Months Ended September 30, 2017 2016 Class Class Class Class Class Class A B C A B C BASIC: Net income (loss) attributable to common stockholders $ 12,223 $ 1,155 $ 324 $ (62,306 ) $ (8,731 ) $ (1,704 ) Weighted-average common shares outstanding 774,917 73,273 20,517 750,038 105,101 20,517 Basic net income (loss) per share $ 0.02 $ 0.02 $ 0.02 $ (0.08 ) $ (0.08 ) $ (0.08 ) DILUTED: Net income (loss) attributable to common stockholders $ 12,223 $ 1,155 $ 324 $ (62,306 ) $ (8,731 ) $ (1,704 ) Reallocation of net income (loss) as a result of conversion of Class C shares to Class A shares 324 — — (1,704 ) — — Reallocation of net income (loss) as a result of conversion of Class B shares to Class A shares 1,155 — — (8,731 ) — — Reallocation of net income (loss) to Class B and Class C shares — 95 (10 ) — — — Net income (loss) attributable to common stockholders-diluted $ 13,702 $ 1,250 $ 314 $ (72,741 ) $ (8,731 ) $ (1,704 ) Weighted-average common shares outstanding-basic 774,917 73,273 20,517 750,038 105,101 20,517 Conversion of Class C to Class A common shares outstanding 20,517 — — 20,517 — — Conversion of Class B to Class A common shares outstanding 73,273 — — 105,101 — — Weighted-average effect of dilutive securities: Stock options and employee stock purchase plan 9,366 8,373 — — — — ZSUs 16,236 — — — — — Performance-based ZSUs 898 — — — — — Weighted-average common shares outstanding-diluted 895,207 81,646 20,517 875,656 105,101 20,517 Diluted net income (loss) per share $ 0.02 $ 0.02 $ 0.02 $ (0.08 ) $ (0.08 ) $ (0.08 )
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 September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Stock options and employee stock purchase plan 11,859 29,814 17,440 25,817 Restricted shares — 3,344 467 4,165 ZSUs 88 62,587 4,330 62,850 Total 11,947 95,745 22,237 92,832

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2017
Leases [Abstract]
Schedule of Cash to be Received Future Minimum Rentals for Noncancelable Lease Term	As of September 30, 2017, cash to be received from future minimum rentals for the noncancelable lease term are as follows (in thousands): Year ending December 31: Remaining 2017 $ — 2018 6,457 2019 11,345 2020 14,369 2021 20,287 Thereafter 114,877 Total $ 167,335
Schedule of Future Minimum Lease Payments for Operating Leases	We have entered into operating leases for office facilities. As of September 30, 2017, future minimum lease payments related to these leases are as follows (in thousands): Year ending December 31: Remaining 2017 $ 1,010 2018 3,895 2019 3,136 2020 1,254 2021 672 Thereafter 33 Total $ 10,000

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2017
Commitments And Contingencies Disclosure [Abstract]
Schedule of Future Minimum Guarantee Royalty Payments to Licensors and Marketing Commitments	We have entered into several contracts with licensors that contain minimum guarantee payments and marketing commitments that may not be dependent on any deliverables. As of September 30, 2017, future minimum guarantee royalty payments due to licensors and marketing commitments for the licensed products are as follows (in thousands): Year ending December 31: Remaining 2017 $ 10,782 2018 8,500 2019 8,750 2020 2,250 2021 and thereafter — Total $ 30,282
Schedule of Future Minimum Purchase Commitments	We have entered into several contracts for hosting of data systems and other services. As of September 30, 2017, future minimum purchase commitments that have initial or remaining non-cancelable terms are as follows (in thousands): Year ending December 31: Remaining 2017 $ 8,449 2018 5,778 2019 1,950 2020 285 2021 and thereafter — Total $ 16,462

Geographical Information (Table

Geographical Information (Tables)	9 Months Ended
	Sep. 30, 2017
Segment Reporting [Abstract]
Revenue by Geographical Area	The following represents our revenue based on the geographic location of our players (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2017 2016 2017 2016 United States $ 145,255 $ 126,412 $ 413,228 $ 375,595 All other countries (1) 79,340 56,012 214,882 175,285 Total revenue $ 224,595 $ 182,424 $ 628,110 $ 550,880 (1)
Property and Equipment, Net	The following represents our property and equipment, net by location (in thousands): September 30, December 31, 2017 2016 United States $ 263,192 $ 267,324 All other countries 2,929 2,115 Total property and equipment, net $ 266,121 $ 269,439

Overview and Summary of Signi35

Overview and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Accounting Policies [Abstract]
Initial offering period			December 2,011
Changes in revenue from adjustments of prior period deferred revenue	$ 0.3	$ 0.5	$ 0.3	$ 0.5
Revenue and income from operations		$ 0.2		$ 3.8
Impact on reported earnings per share	$ 0	$ 0	$ 0.01	$ 0.01

Marketable Securities - Summary

Marketable Securities - Summary of Available-for-Sale Marketable Securities (Detail) $ in Thousands	Sep. 30, 2017USD ($)
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 255,002
Gross Unrealized Losses	(30)
Aggregate Fair Value	254,972
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	255,002
Gross Unrealized Losses	(30)
Aggregate Fair Value	$ 254,972

Marketable Securities - Additio

Marketable Securities - Additional Information (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Short-term and long-term marketable securities		$ 0
Available-for-sale securities, continuous unrealized loss position, more than twelve months, fair value	$ 0
Maximum [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale marketable securities period of contractual maturities	1 year

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - USD ($)	3 Months Ended			9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2016	Sep. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value assets liabilities transfers between valuation levels				$ 0
Zindagi [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Maximum amount payable			$ 60,000,000
Potential future payments maximum period			3 years
PuzzleSocial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Maximum amount payable		$ 42,000,000
Potential future payments maximum period		2 years 6 months
Zindagi and PuzzleSocial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	$ 0			0
Research and Development [Member] | Zindagi and PuzzleSocial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Change in fair value of contingent consideration liability	$ 900,000			$ 900,000

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	$ 604,390	$ 729,084
Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities Fair Value Disclosure Recurring		901
Short-term Investments [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	254,972
Cash and 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	262,759	439,330
Cash and Cash Equivalents [Member] | U.S. Government and Government Agency Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring		19,987
Cash and Cash Equivalents [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	86,659	269,767
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	262,759	439,330
Fair Value, Inputs, Level 1 [Member] | Cash and 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	262,759	439,330
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	341,631	289,754
Fair Value, Inputs, Level 2 | Short-term Investments [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	254,972
Fair Value, Inputs, Level 2 | Cash and Cash Equivalents [Member] | U.S. Government and Government Agency Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring		19,987
Fair Value, Inputs, Level 2 | Cash and Cash Equivalents [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets Fair Value Disclosure Recurring	86,659	269,767
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities Fair Value Disclosure Recurring	$ 0	901
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		$ 901

Fair Value Measurements - Fai40

Fair Value Measurements - Fair Value Liabilities Measured on Recurring Basis (Detail) - Fair Value, Inputs, Level 3 [Member] $ in Thousands	9 Months Ended
	Sep. 30, 2017USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability, Beginning Balance	$ 901
Fair value adjustments	(901)
Contingent consideration liability, Ending Balance	0
Zindagi [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability, Beginning Balance	180
Fair value adjustments	(180)
Contingent consideration liability, Ending Balance	0
PuzzleSocial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability, Beginning Balance	721
Fair value adjustments	(721)
Contingent consideration liability, Ending Balance	$ 0

Property and Equipment, Net - C

Property and Equipment, Net - Components of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 366,375	$ 363,532
Less accumulated depreciation	(100,254)	(94,093)
Total property and equipment, net	266,121	269,439
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	28,356	27,046
Land [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	89,130	89,130
Building [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	197,343	197,689
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	10,783	10,494
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	8,712	8,071
Software [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 32,051	$ 31,102

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail) - USD ($) $ in Thousands	Feb. 14, 2017	Sep. 30, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Intangible assets		$ 40,517	$ 25,430
Noncompetition Agreements [Member]
Business Acquisition [Line Items]
Intangible assets		$ 5,235
Harpan LLC [Member]
Business Acquisition [Line Items]
Business acquisition effective date of acquisition		Feb. 14, 2017
Business acquisition, cost of acquired entity, cash paid	$ 42,500
Estimated amount allocated to business combination	35,081
Harpan LLC [Member] | Noncompetition Agreements [Member]
Business Acquisition [Line Items]
Intangible assets	$ 7,400
Intangible assets, useful life		2 years

Acquisitions - Schedule of Purc

Acquisitions - Schedule of Purchase Price Allocation (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Feb. 14, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Goodwill	$ 660,871		$ 613,335
Harpan LLC [Member]
Business Acquisition [Line Items]
Goodwill		$ 14,610
Estimated Fair Value, Total		35,081
Harpan LLC [Member] | Developed Technology [Member]
Business Acquisition [Line Items]
Estimated Fair Value, Intangible assets		$ 20,471

Acquisitions - Schedule of Pu44

Acquisitions - Schedule of Purchase Price Allocation (Parenthetical) (Detail)	Feb. 14, 2017
Harpan LLC [Member] | Developed Technology [Member]
Business Acquisition [Line Items]
Intangible assets, useful life	5 years

Goodwill and Other Intangible45

Goodwill and Other Intangible Assets, Net - Schedule of Changes to Goodwill (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2017USD ($)
Goodwill Roll Forward
Goodwill, beginning balance	$ 613,335
Additions	14,610
Foreign currency translation and other adjustments	32,926
Goodwill, ending balance	$ 660,871

Goodwill and Other Intangible46

Goodwill and Other Intangible Assets, Net - Acquisition-Related Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 206,156	$ 172,824
Accumulated Amortization	(165,639)	(147,394)
Net Book Value	40,517	25,430
Developed Technology [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	176,768	150,826
Accumulated Amortization	(147,990)	(132,123)
Net Book Value	28,778	18,703
Trademarks, Branding and Domain Names [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	16,290	16,290
Accumulated Amortization	(10,170)	(10,063)
Net Book Value	6,120	6,227
Noncompetition Agreements [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	7,390
Accumulated Amortization	(2,155)
Net Book Value	5,235
Acquired Lease Intangibles [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	5,708	5,708
Accumulated Amortization	(5,324)	(5,208)
Net Book Value	$ 384	$ 500

Goodwill and Other Intangible47

Goodwill and Other Intangible Assets, Net - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Finite Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 6.1		$ 6.1		$ 6.1
Other Intangible Assets [Member]
Finite Lived Intangible Assets [Line Items]
Amortization Expense	$ 3.5	$ 7.4	$ 13	$ 22.8

Goodwill and Other Intangible48

Goodwill and Other Intangible Assets, Net - Schedule of Finite Lived Intangible Assets Future Amortization Expense (Detail) $ in Thousands	Sep. 30, 2017USD ($)
Finite Lived Intangible Assets Future Amortization Expense Current And Five Succeeding Fiscal Years [Abstract]
Remaining 2,017	$ 3,245
2,018	12,400
2,019	7,548
2,020	6,293
2,021	4,230
Thereafter	681
Total	$ 34,397

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Increase in income tax expense benefit	$ 7.3	$ 10.5

Other Current Liabilities - Sch

Other Current Liabilities - Schedule of Other Current Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Other Liabilities Disclosure [Abstract]
Accrued accounts payable	$ 25,466	$ 24,119
Accrued compensation liability	23,517	22,554
Accrued restructuring liability	3,404	4,987
Other current liabilities	25,381	24,094
Total other current liabilities	$ 77,768	$ 75,754

Restructuring - Summary of Net

Restructuring - Summary of Net Restructuring Charges Within Consolidated Statement of Operation (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Restructuring Cost And Reserve [Line Items]
Total restructuring charges	$ 995	$ (49)	$ 1,573	$ 2,129
Research and Development [Member]
Restructuring Cost And Reserve [Line Items]
Total restructuring charges	867		1,200	124
General and Administrative [Member]
Restructuring Cost And Reserve [Line Items]
Total restructuring charges	$ 128	$ (49)	$ 373	$ 2,005

Restructuring - Summary of Sign

Restructuring - Summary of Significant Restructuring Plan Activity Related To Employees And Other Charges (Detail) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2017USD ($)	Sep. 30, 2017USD ($)
Q3 2017 Restructuring Plan [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring liability, Beginning balance		$ 0
Restructuring expense and adjustments	$ 845	845
Cash payments		(838)
Restructuring liability, Ending balance	7	7
Cumulative costs to date, as of September 30, 2017	845	845
Total costs expected to be incurred, as of September 30, 2017	1,011	1,011
Q2 2017 Restructuring Plan [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring liability, Beginning balance		0
Restructuring expense and adjustments		1,301
Cash payments		(1,177)
Restructuring liability, Ending balance	124	124
Cumulative costs to date, as of September 30, 2017	1,301	1,301
Total costs expected to be incurred, as of September 30, 2017	1,436	1,436
Q2 2015 Restructuring Plan [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring liability, Beginning balance		19,388
Restructuring expense and adjustments	(100)	(560)
Cash payments		(3,890)
Restructuring liability, Ending balance	14,938	14,938
Cumulative costs to date, as of September 30, 2017	34,215	34,215
Total costs expected to be incurred, as of September 30, 2017	$ 34,215	$ 34,215

Restructuring - Additional Info

Restructuring - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Restructuring Cost And Reserve [Line Items]
Net restructuring charge	$ 995,000	$ (49,000)	$ 1,573,000	$ 2,129,000
Q3 2017 Restructuring Plan [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring expenses (benefits)	845,000		845,000
Net restructuring charge	800,000		800,000
Employee severance Costs	600,000		600,000
Other costs	200,000		200,000
Q2 2017 Restructuring Plan [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring expenses (benefits)			1,301,000
Net restructuring charge	1,300,000		1,300,000
Employee severance Costs	1,200,000		1,200,000
Other costs	100,000		100,000
Q2 2017 Restructuring Plan [Member] | Maximum [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring expenses (benefits)	100,000
Q2 2015 Restructuring Plan [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring expenses (benefits)	$ (100,000)		$ (560,000)
Restructuring liability, expected paid out period			4 years 8 months 13 days

Stockholders' Equity - Stock-Ba

Stockholders' Equity - Stock-Based Compensation Expense Related to Grants of Employee and Consultant Stock Options, Restricted Stock and Restricted Stock Units (ZSUs) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 15,589	$ 24,475	$ 49,346	$ 80,982
Cost of Revenue [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	435	1,049	1,425	2,825
Research and Development [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	10,097	18,662	32,293	63,078
Sales and Marketing [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	1,891	1,541	5,429	5,738
General and Administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 3,166	$ 3,223	$ 10,199	$ 9,341

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	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options Outstanding, Beginning balance	36,858
Stock Options, Granted	848
Stock Options, Forfeited and cancelled	(3,014)
Stock Options, Exercised	(2,166)
Stock Options Outstanding, Ending balance	32,526	36,858
Outstanding Options, Weighted Average Exercise Price, Beginning Balance	$ 2.08
Weighted Average Exercise Price, Granted	3.62
Weighted Average Exercise Price, Forfeited and cancelled	3.60
Weighted Average Exercise Price, Exercised	1.29
Outstanding Options, Weighted Average Exercise Price, Ending Balance	$ 2.03	$ 2.08
Outstanding Options, Aggregate Intrinsic Value of Stock Options Outstanding	$ 57,771	$ 26,411
Weighted Average Contractual Term (in years)	6 years 5 months 8 days	6 years 9 months 22 days

Stockholders' Equity - Schedu56

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	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested Outstanding Shares, Beginning balance	59,452
Nonvested Shares, Granted	16,262
Nonvested Shares, Vested	(15,941)
Nonvested Shares, Forfeited and cancelled	(13,862)
Nonvested Outstanding Shares, Ending balance	45,911
Weighted Average Grant Date Fair Value, Beginning balance	$ 2.66
Weighted Average Grant Date Fair Value, Granted	3.36
Weighted Average Grant Date Fair Value, Vested	2.84
Weighted Average Grant Date Fair Value, Forfeited and cancelled	2.63
Weighted Average Grant Date Fair Value, Ending balance	$ 2.86
Nonvested Aggregated Intrinsic Value, Unvested	$ 173,544	$ 152,792

Stockholders' Equity - Schedu57

Stockholders' Equity - Schedule of Accumulated Other Comprehensive Income Loss (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income, net of tax, Beginning balance			$ 1,580,664
Other comprehensive income (loss), net of tax	$ 20,463	$ (6,037)	37,471	$ (54,167)
Accumulated other comprehensive income, net of tax, Ending balance	1,630,128		1,630,128
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income, net of tax, Beginning balance			(128,671)
Other comprehensive income (loss) before reclassifications, net of tax			37,479
Less: Amounts reclassified from accumulated other comprehensive income (loss)			0
Other comprehensive income (loss), net of tax			37,479
Accumulated other comprehensive income, net of tax, Ending balance	(91,192)		(91,192)
Unrealized Gains (Losses) on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income, net of tax, Beginning balance			(23)
Other comprehensive income (loss) before reclassifications, net of tax			(8)
Less: Amounts reclassified from accumulated other comprehensive income (loss)			0
Other comprehensive income (loss), net of tax			(8)
Accumulated other comprehensive income, net of tax, Ending balance	(31)		(31)
Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income, net of tax, Beginning balance			(128,694)
Other comprehensive income (loss) before reclassifications, net of tax			37,471
Less: Amounts reclassified from accumulated other comprehensive income (loss)			0
Other comprehensive income (loss), net of tax			37,471
Accumulated other comprehensive income, net of tax, Ending balance	$ (91,223)		$ (91,223)

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - 2016 Share Repurchase Program [Member] - USD ($)	3 Months Ended
	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Nov. 30, 2016
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, authorized amount				$ 200,000,000
Common Class A [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Repurchase of common stock	0	34,200,000	34,200,000
Treasury stock acquired, average cost per share		$ 2.70	$ 2.70
Stock repurchase program, aggregate number of shares repurchased value		$ 92,900,000	$ 92,900,000

Net Income (Loss) Per Share o59

Net Income (Loss) Per Share of Common Stock - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2017
Class B And Class C Convert To Class A [Member]
Earnings Per Share Diluted [Line Items]
Class of common stock conversion ratio	100.00%

Net Income (Loss) Per Share o60

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		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
BASIC:
Net income (loss) attributable to common stockholders	$ 18,091	$ (41,737)	$ 13,710	$ (72,741)
Weighted-average common shares outstanding-basic	867,377	882,408	868,707	875,656
Basic net income (loss) per share	$ 0.02	$ (0.05)	$ 0.02	$ (0.08)
DILUTED:
Weighted-average common shares outstanding-basic	867,377	882,408	868,707	875,656
Weighted-average common shares outstanding-diluted	893,684	882,408	895,207	875,656
Diluted net income (loss) per share	$ 0.02	$ (0.05)	$ 0.02	$ (0.08)
Common Class A [Member]
BASIC:
Net income (loss) attributable to common stockholders	$ 16,240	$ (36,203)	$ 12,223	$ (62,306)
Weighted-average common shares outstanding-basic	778,614	765,403	774,917	750,038
Basic net income (loss) per share	$ 0.02	$ (0.05)	$ 0.02	$ (0.08)
DILUTED:
Net income (loss) attributable to common stockholders-basic	$ 16,240	$ (36,203)	$ 12,223	$ (62,306)
Net income (loss) attributable to common stockholders-diluted	$ 18,091	$ (41,737)	$ 13,702	$ (72,741)
Weighted-average common shares outstanding-basic	778,614	765,403	774,917	750,038
Weighted-average common shares outstanding-diluted	893,684	882,408	895,207	875,656
Diluted net income (loss) per share	$ 0.02	$ (0.05)	$ 0.02	$ (0.08)
Common Class A [Member] | Stock options and employee stock purchase plan [Member]
DILUTED:
Weighted-average effect of dilutive securities	10,125		9,366
Common Class A [Member] | Restricted Stock Units (ZSUs) [Member]
DILUTED:
Weighted-average effect of dilutive securities	15,284		16,236
Common Class A [Member] | Performance Based Restricted Stock Units (ZSUs) [Member]
DILUTED:
Weighted-average effect of dilutive securities	898		898
Common Class B [Member]
BASIC:
Net income (loss) attributable to common stockholders	$ 1,423	$ (4,564)	$ 1,155	$ (8,731)
Weighted-average common shares outstanding-basic	68,246	96,488	73,273	105,101
Basic net income (loss) per share	$ 0.02	$ (0.05)	$ 0.02	$ (0.08)
DILUTED:
Net income (loss) attributable to common stockholders-basic	$ 1,423	$ (4,564)	$ 1,155	$ (8,731)
Net income (loss) attributable to common stockholders-diluted	$ 1,552	$ (4,564)	$ 1,250	$ (8,731)
Weighted-average common shares outstanding-basic	68,246	96,488	73,273	105,101
Weighted-average common shares outstanding-diluted	76,684	96,488	81,646	105,101
Diluted net income (loss) per share	$ 0.02	$ (0.05)	$ 0.02	$ (0.08)
Reallocation of net income (loss) to Class B and Class C shares	$ 129		$ 95
Common Class B [Member] | Stock options and employee stock purchase plan [Member]
DILUTED:
Weighted-average effect of dilutive securities	8,438		8,373
Common Class C [Member]
BASIC:
Net income (loss) attributable to common stockholders	$ 428	$ (970)	$ 324	$ (1,704)
Weighted-average common shares outstanding-basic	20,517	20,517	20,517	20,517
Basic net income (loss) per share	$ 0.02	$ (0.05)	$ 0.02	$ (0.08)
DILUTED:
Net income (loss) attributable to common stockholders-basic	$ 428	$ (970)	$ 324	$ (1,704)
Net income (loss) attributable to common stockholders-diluted	$ 415	$ (970)	$ 314	$ (1,704)
Weighted-average common shares outstanding-basic	20,517	20,517	20,517	20,517
Weighted-average common shares outstanding-diluted	20,517	20,517	20,517	20,517
Diluted net income (loss) per share	$ 0.02	$ (0.05)	$ 0.02	$ (0.08)
Reallocation of net income (loss) to Class B and Class C shares	$ (13)		$ (10)
Class C Convert To Class A [Member] | Common Class A [Member]
DILUTED:
Reallocation of net income (loss) as a result of common stock class conversion	$ 428	$ (970)	$ 324	$ (1,704)
Conversion of common stock class	20,517	20,517	20,517	20,517
Class B convert to Class A [Member] | Common Class A [Member]
DILUTED:
Reallocation of net income (loss) as a result of common stock class conversion	$ 1,423	$ (4,564)	$ 1,155	$ (8,731)
Conversion of common stock class	68,246	96,488	73,273	105,101

Net Income (Loss) Per Share o61

Net Income (Loss) Per Share of Common Stock - Shares excluded from Computation of Diluted Net Income (Loss) per Share (Detail) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from computation of earnings per share amount	11,947	95,745	22,237	92,832
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	11,859	29,814	17,440	25,817
Restricted Shares [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from computation of earnings per share amount		3,344	467	4,165
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	88	62,587	4,330	62,850

Leases - Addtional Information

Leases - Addtional Information (Detail) ft² in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
	Jun. 30, 2017USD ($)ft²	Sep. 30, 2017USD ($)
Lessor Lease Description [Line Items]
Total rental payments to be received		$ 167,335
San Francisco, California [Member]
Lessor Lease Description [Line Items]
Area of Office Space Leased | ft²	287
Lease expiration date	Feb. 28, 2027
Total rental payments to be received	$ 167,300
Building occupancy rate by tenant		43.00%
Incentive Receivable and obligation to pay for tenant improvements		$ 24,900
Accrued deferred lease origination costs	$ 6,500

Leases - Schedule of Cash to be

Leases - Schedule of Cash to be Received Future Minimum Rentals for Noncancelable Lease Term (Detail) $ in Thousands	Sep. 30, 2017USD ($)
Leases [Abstract]
2,018	$ 6,457
2,019	11,345
2,020	14,369
2,021	20,287
Thereafter	114,877
Total	$ 167,335

Leases - Schedule of Future Min

Leases - Schedule of Future Minimum Lease Payments for Operating Leases (Detail) $ in Thousands	Sep. 30, 2017USD ($)
Operating Leases Future Minimum Payments Due [Abstract]
Remaining 2,017	$ 1,010
2,018	3,895
2,019	3,136
2,020	1,254
2,021	672
Thereafter	33
Total	$ 10,000

Commitments and Contingencies -

Commitments and Contingencies - Schedule of Future Minimum Guarantee Royalty Payments to Licensors and Marketing Commitments (Detail) $ in Thousands	Sep. 30, 2017USD ($)
Commitments And Contingencies Disclosure [Abstract]
Remaining 2,017	$ 10,782
2,018	8,500
2,019	8,750
2,020	2,250
Total	$ 30,282

Commitments and Contingencies66

Commitments and Contingencies - Schedule of Future Minimum Purchase Commitments (Detail) $ in Thousands	Sep. 30, 2017USD ($)
Commitments And Contingencies Disclosure [Abstract]
Remaining 2,017	$ 8,449
2,018	5,778
2,019	1,950
2,020	285
Total	$ 16,462

Commitments and Contingencies67

Commitments and Contingencies - Additional Information (Detail)	May 01, 2017USD ($)	Mar. 31, 2017USD ($)Claim	Apr. 04, 2014Case	Mar. 11, 2013Case	Aug. 16, 2012Case	Aug. 03, 2012Case	Sep. 30, 2017USD ($)
Loss Contingencies [Line Items]
Accrued for legal and regulatory proceeding, estimate of possible loss | $							$ 0
Delaware [Member]
Loss Contingencies [Line Items]
Claims filed				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
Mayer et al. v. Zynga [Member]
Loss Contingencies [Line Items]
Number of claims relief | Claim		5
Compensatory damages held in escrow | $		$ 875,000
Loss contingencies for counter claims | $	$ 2,500,000
Arbitration hearing date							January 29, 2018
Mayer et al. v. Zynga [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Entitled to compensatory damages | $		$ 60,000,000

Geographical Information - Reve

Geographical Information - Revenue by Geographical Area (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 224,595	$ 182,424	$ 628,110	$ 550,880
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	145,255	126,412	413,228	375,595
All Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 79,340	$ 56,012	$ 214,882	$ 175,285

Geographical Information - Prop

Geographical Information - Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$ 266,121	$ 269,439
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	263,192	267,324
All Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$ 2,929	$ 2,115

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - Peak Oyun Yazilim Ve Pazarlama Anonim Sirketi (Peak Games) [Member] - Subsequent Event [Member] $ in Millions	Nov. 01, 2017USD ($)
Subsequent Event [Line Items]
Date of acquisition agreement	Nov. 1, 2017
Business acquisition, cost of acquired entity, cash paid	$ 100
Acquisition expected closing date	2017-12