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 global leader in interactive entertainment. We develop, market and operate social games as live services played on mobile platforms (such as Apple’s iOS and Google’s Android), social networking platforms (such as Facebook and Snapchat), Personal Computers (PCs), consoles (such as Nintendo’s Switch) and other platforms. Generally, all of our games are free to play, and we generate substantially all of our revenue through the sale of in-game virtual items and advertising services. We also operate a mobile programmatic advertising and monetization platform. Our operations are headquartered in San Francisco, California, and we have several operating locations in the U.S. as well as various international office locations in North America, Asia and Europe. We completed our initial public offering in December 2011 and our Class A common stock is listed on the Nasdaq Global Select Market under the symbol “ZNGA.” Proposed Merger with Take-Two On January 9, 2022, the Company entered into an Agreement and Plan of Merger with Take-Two. Refer to Note 16 – “Subsequent Events” for further background on the combination. Basis of Presentation and Consolidation The accompanying consolidated financial statements are prepared and presented in accordance with United States generally accepted accounting principles (“U.S. GAAP”). The consolidated financial statements include the operations of the Company and its owned subsidiaries. All intercompany balances and transactions have been eliminated in the consolidation. 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 average playing period of payers that we use for revenue recognition, useful lives of property and equipment and intangible assets, accrued liabilities, income taxes, the fair value of assets and liabilities acquired through business combinations, contingent consideration obligations, the discount rate used in measuring our operating lease liabilities, the interest rate used in calculating the present value of the initial liability component of our convertible senior notes, stock-based compensation expense and evaluation of recoverability of goodwill, intangible assets and long-lived assets and as necessary, estimates of fair value to measure impairment losses. Actual results could differ materially from those estimates. Segments We have one operating and reportable segment, which is at the consolidated entity level. The Chief Operating Decision Maker (“CODM”), our Chief Executive Officer, manages our operations on a consolidated basis for purposes of assessing performance and allocating resources. Revenue Recognition We derive substantially all of our revenue from the sale of virtual items and advertising associated with our online games. Online Game. We operate our games as live services that allow players to play for free. Within these games, however, players can purchase virtual currency to obtain virtual goods or virtual goods directly (together, defined as “virtual items” or a “virtual item”) to enhance their game-playing experience. Our identified performance obligation is to display the virtual items within the game over the estimated playing period of the paying player or until they are consumed in game play based upon the nature of the virtual item. Payment is required at time of purchase and the purchase price is a fixed amount. Players can purchase our virtual items through various widely accepted payment methods offered in the games, including Apple iTunes accounts, Google Play accounts and Facebook local currency payments. Payments from players for virtual items are non-refundable and relate to non-cancellable contracts that specify our obligations. Such payments are initially recorded to deferred revenue. For revenue earned through mobile platforms, the transaction price is equal to the gross amount we request to be charged to our player because we are the principal in the transaction. The related platform and payment processing fees are recorded as cost of revenue in the period incurred. For revenue earned on our web based games through Facebook, our players utilize Facebook’s local currency-based payments program to purchase virtual items in our games. For all payment transactions on the Facebook platform, Facebook remits to us 70% of the price we request to be charged to the player for each transaction, which represents the transaction price. Despite being the principal in the transaction, we recognize revenue net of the amounts retained by Facebook for platform and payment processing fees because Facebook may choose to alter our requested price, for example by offering a discount or other incentives to players playing on their platform, and we do not receive information from Facebook indicating the amount of such discounts or incentives or the actual amount paid by our players. Accordingly, we are unable to determine the gross amount paid by our players on the Facebook platform. The satisfaction of our performance obligation is dependent on the nature of the virtual item purchased and as a result, we categorize our virtual items as follows: • Consumable: Consumable virtual items represent items that can be consumed by a specific player action. Common characteristics of consumable virtual items may include items that are no longer displayed on the player’s game board after a short period of time, do not provide the player any continuing benefit following consumption, or often times enable a player to perform an in-game action immediately (e.g. chips in Zynga Poker ). For the sale of consumable virtual items, we recognize revenue as the items are consumed (i.e., over time), which approximates one month. • Durable: Durable virtual items represent items that are accessible to the player over an extended period of time (e.g. animals in FarmVille franchise). We recognize revenue from the sale of durable virtual items ratably over the estimated average playing period of payers for the applicable game (i.e., over time), which represents our best estimate of the average life of the durable virtual item. If we do not have the ability to differentiate between revenue attributable to consumable virtual items or durable virtual items in a specific game, we recognize revenue ratably over the estimated average playing period of payers for the applicable game. Historically, we have had sufficient data to separately account for consumable and durable virtual items for substantially all of our web games. However, for our standalone mobile games, we do not have the requisite data to separately account for consumable and durable virtual items and therefore recognize mobile online game revenue ratably over the estimated average playing period of payers. We expect that in future periods, there will be changes in the mix of consumable and durable virtual items offered and sold, reduced virtual item sales in some existing games, changes in estimates of the average playing period of payers and/or changes in our ability to make such estimates. When such changes occur, and in particular if more of our revenue in any period is derived from durable virtual items or the estimated average playing period of payers increases on average, the amount of revenue that we recognize in a current or future period may be reduced, perhaps significantly. Conversely, if the estimated average playing period of payers decreases on average, the amount of revenue that we recognize in a current or future period may be accelerated, perhaps significantly. On a quarterly basis, we determine the estimated average playing period of payers by game beginning at the time of a payer’s first purchase in the respective game and ending on a date when that paying player is deemed to be no longer playing. To determine when paying players are no longer playing a given game, we analyze monthly cohorts of payers who made their first in-game payment between six and 18 months prior to the beginning of each quarter and determine whether each payer within the cohort is an active or inactive player as of the date of our analysis. To determine which payers are inactive, we analyze the dates that each payer last logged into that game. We determine a payer to be inactive once they have reached a period of inactivity for which it is probable that they will not return to a specific game. For the payers deemed inactive as of our analysis date, we analyze the dates they last logged into that game to determine the rate at which inactive payers stopped playing. Based on these dates, we then project a date at which all payers for each monthly cohort are expected to cease playing our games. We then average the time periods from first purchase date and the date the last payer is expected to cease playing the game for each of the monthly cohorts to determine the total playing period of payers for that game. To determine the estimated average playing period of payers, we then divide this total period by two. The use of this “average” approach is supported by our observations that payers typically become inactive at a relatively consistent rate for our games. If future data indicates payers do not become inactive at a relatively consistent rate, we will modify our calculations accordingly. When a new game is launched and only a limited period of payer data is available for our analysis, then we also consider other factors to determine the estimated average playing period of payers, such as the estimated average playing period of payers for other recently launched games with similar characteristics. Advertising. We have contractual relationships with advertising networks, agencies, advertising brokers and directly with advertisers to display advertisements in our games. For all of our in-game advertising arrangements, we are the principal and our performance obligation is to provide the inventory for advertisements to be displayed in our games. For contracts made directly with advertisers, we are also obligated to serve the advertisements in our games. However, for those direct advertising arrangements, providing the advertising inventory and serving the advertisement is considered a single performance obligation, as the advertiser cannot benefit from the advertising space without its advertisements being displayed. The pricing and terms for all our in-game advertising arrangements are governed by either a master contract or insertion order and generally stipulate payment terms as a specific number of days subsequent to the end of the month, generally ranging from 30 to 60 days. The transaction price is generally the product of the number of advertising units delivered (e.g., impressions, offers completed, videos viewed, etc.) and the contractually agreed upon price per advertising unit. Further, for advertising transactions not placed directly with the advertiser, the contractually agreed upon price per advertising unit is generally based on our fixed revenue rate stated in the contract. The number of advertising units delivered is determined at the end of each month, which resolves any uncertainty in the transaction price during the reporting period. For a limited number of advertising network arrangements, the transaction price is determined based on a volume-tiered pricing structure, whereby the price per advertising unit in a given month is determined by the number of impressions delivered in that month. However, the uncertainty concerning the number of impressions delivered is resolved at the end of each month, therefore, eliminating any uncertainty with respect to the price per advertising unit for each reporting period. For in-game display advertisements, in-game offers, engagement advertisements and other advertisements, our performance obligation is satisfied over the life of contract (i.e., over time), with revenue being recognized as advertising units are delivered. For in-game sponsorships with branded virtual items, revenue is initially recorded to deferred revenue and then recognized ratably over the estimated life of the branded virtual item, which approximates the estimated average playing period of payers, or over the term of the advertising arrangement, depending on the nature of the agreement. We also operate a software platform that facilitates transactions between advertisers and owners of digital advertising inventory (“publishers”) via programmatic auctions. The Company has contracts with both advertisers (“demand side”) and publishers (“supply side”), with the advertiser representing the Company’s customer in a demand side transaction and the publisher representing the Company’s customer in a supply side transaction. The pricing and terms for all demand side and supply side arrangements are contractually governed and generally stipulate payment terms as a specific number of days subsequent to the end of the month, generally ranging from 30 to 60 days. For both demand side and supply side revenue arrangements, the Company’s performance obligation is to provide the advertiser or publisher with access to the Company’s software platform, which facilitates the placement of the advertising inventory. The Company does not control the advertising inventory, because the Company does not have the substantive ability to direct the use of, nor obtain substantially all of the remaining benefits from the advertising inventory. Further, the Company is not primarily responsible for fulfillment and does not have any inventory risk. Accordingly, the Company is an agent in both demand side and supply side transactions and presents revenue on a net basis. The transaction price is the product of the number of advertising units delivered to the end user via the software platform and the contractually agreed upon price per advertising unit, less the consideration paid or payable to publishers. The number of advertising units delivered to the end user is determined at the end of each month, which resolves any uncertainty in the transaction price during the reporting period. Our performance obligation is satisfied over the life of contract (i.e., over time), with revenue being recognized as advertising units are delivered to the end user. Taxes Collected from Customers. We present taxes collected from customers and remitted to governmental authorities on a net basis within our consolidated statement of operations. Cash and Cash Equivalents Cash and cash equivalents consist of cash on hand, money market funds, corporate debt and foreign certificates of deposit and time deposits with maturities of 90 days or less from the date of purchase. Restricted Cash Restricted cash consists of funds held in escrow in accordance with the terms of our business acquisition agreements. Short and Long-Term Investments Realized gains and losses for all investments are determined using the specific-identification method and are reflected as a component of other income (expense), net in the consolidated statements of operations. Debt Securities Short and long-term debt investments consist of corporate debt securities and foreign certificates of deposit and time deposits For debt securities in an unrealized loss position , we first consider whether we intend to or it is more likely than not that we will be required to sell the individual security prior to recovery of its amortized cost basis and if so, we adjust the carrying value of security down to its fair value, with the amount of the write-down recorded as a realized loss within other income (expense), net. Otherwise, we determine whether a decline in fair value is attributable to a partial or full credit loss by reviewing factors such as the extent to which the fair value is less than the amortized cost basis, changes in interest rates since the purchase of the security, the financial condition of the issuer, including changes in credit ratings, the remaining payment terms of the security, as well as any adverse conditions specifically related to the security, the issuer’s industry or its geographic area. If a credit loss exists, we adjust the carrying value by recording expense within other income (expense), net equal to the amount of the credit loss, with such amount limited to the amount of the unrealized loss. Subsequent recoveries of fair value originally attributed to a credit loss are subsequently recognized as income within other income (expense), net. Finally, any unrealized loss not deemed to be attributable to a credit loss is recognized as component of other comprehensive income, net of income taxes. No credit losses related to our debt investments were recognized as a component of other income (expense), net in any of the periods presented. Equity Securities with Readily Determinable Fair Value Short-term equity investments consist of privately held mutual funds. All equity investments are reported at fair value, with unrealized gains and losses recorded within other income (expense), net in our consolidated statement of operations. Derivatives Designated Hedging Derivatives - Net Investment Hedge Certain foreign currency forward contracts are designated as net investment hedges to mitigate foreign currency risks related to the Company’s investment in certain foreign subsidiaries. Changes in the fair value of the net investment hedge amounts that are included in the assessment of hedge effectiveness are recorded in other comprehensive income (loss) ("OCI") with the foreign currency translation adjustment and the excluded components (e.g. forward points) from the assessment of hedge effectiveness are recognized in other income (expense) on a straight-line basis over the term of the derivative contract. Non-Designated Hedging Derivatives - Other Derivatives Other derivatives not designated as hedging instruments consist of foreign currency forward contracts that are used as an economic offset to foreign currency risks associated with the remeasurement of certain intercompany loans. Gains and losses on these contracts are recognized in other income (expense), net in our consolidated statement of operations. Fair Value of Financial Instruments Our financial assets consist of cash, cash equivalents, short-term and long-term investments, derivative instruments and accounts receivable, net. Cash equivalents, short-term and long-term investments and derivative instruments are reported at fair value while accounts receivable, net are stated at the net realizable amount, which approximates fair value. Our financial liabilities consist of accounts payable and accrued liabilities, contingent consideration obligations, deferred acquisition consideration and debt. Accounts payable and accrued liabilities are stated at the invoiced or estimated payout amount, respectively, and approximate fair value. Contingent consideration obligations and deferred acquisition consideration, which are the result of business acquisitions, are reported at the estimated fair value. Our debt is recorded at the net carrying amount, which does not approximate fair value. However, the fair value of the debt is disclosed at each reporting period – refer to Note 10 – “Debt” for further discussion. We estimate fair value as the exit price, which represents the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between knowledgeable and willing market participants. The valuation techniques used to measure the fair value of the Company’s financial instruments were valued based on quoted market prices, model driven valuations using significant inputs derived from or corroborated by observable market data or other directly and indirectly inputs observable in the marketplace. 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. Accounts Receivable and Allowance for Credit Losses Accounts receivable are recorded at the original invoiced amount less an allowance for credit losses. In evaluating our ability to collect outstanding receivable balances and related allowance for credit losses, we consider many factors, including the age of the balance, the customer’s payment history and current creditworthiness, as well as and current and forecasted economic conditions that may affect our customers’ ability to pay. Bad debts are written off after all collection efforts have been exhausted. We do not require collateral from our customers. Property and Equipment, Net Property and equipment are recorded at historical cost less accumulated depreciation. Depreciation is recorded using the straight-line method over the estimated useful lives of the assets. Leasehold improvements are amortized using the straight-line method over the shorter of the estimated useful lives of the improvements or the lease term. The estimated useful lives of our property and equipment are as follows: Property and Equipment Useful Life Computer equipment 3 years Software 2 to 3 years Furniture and fixtures 2 years Leasehold improvements Shorter of useful life (generally up to 7 years) or remaining lease term Business Combinations In accounting for acquisitions through which a set of assets and activities are transferred to the Company, we perform an initial test to determine whether substantially all of the fair value of the gross assets transferred are concentrated in a single identifiable asset or a group of similar identifiable assets, such that the acquisition would not represent a business. If the initial test does not result in substantially all of the fair value concentrated in a single or group of similar assets, we then perform a second test to evaluate whether the assets and activities transferred include inputs and substantive processes that together, significantly contribute to the ability to create outputs, which would constitute a business. If the result of the second test indicates that the acquired assets and activities constitute a business, we account for the transaction as a business combination. For our business combinations, we allocate the purchase consideration of the acquisition, which includes the estimated acquisition date fair value of contingent consideration (if applicable) and deferred purchase consideration (if applicable), to the tangible assets, liabilities and identifiable intangible assets acquired based on each of the estimated fair values at the acquisition date. The excess of the purchase consideration over the fair values is recorded as goodwill. Determining the fair value of such items requires judgment, including estimating future cash flows or the cost to recreate an acquired asset. If actual results are lower than initial estimates, we could be required to record impairment losses in the future. Acquired intangible assets with definite lives are amortized over their estimated useful lives generally on a straight-line basis, unless evidence indicates a more appropriate method. Intangible assets with indefinite lives are not amortized but rather tested for impairment annually, or more frequently if circumstances indicate an impairment may exist. During the one-year period beginning with the acquisition date, we may record certain purchase accounting adjustments related to the fair value of assets acquired and liabilities assumed against goodwill. After the final determination of the fair value of assets acquired or liabilities assumed, any subsequent adjustments are recorded to our consolidated statements of operations. The fair value of contingent consideration liabilities assumed from an acquisition are remeasured each reporting period after the acquisition date and the changes in the estimated fair value, if any, is recorded within operating expenses in our consolidated statement of operations each reporting period. Acquisition-related expenses are expensed as incurred. Game Software Development Costs We review internal use software development costs associated with new games or updates to existing games on a quarterly basis to determine if the costs qualify for capitalization. Our studio teams follow an agile development process, whereas the preliminary project stage remains ongoing until just prior to worldwide launch, at which time final feature selection occurs. As such, the development costs are expensed as incurred to research and development in our consolidated statement of operations. We did not capitalize any software development costs during any of the years presented. Goodwill and Indefinite-Lived Intangible Assets Goodwill and indefinite-lived intangible assets are evaluated annually for impairment, or more frequently if circumstances exist that indicate that impairment may exist. When conducting our annual goodwill impairment assessment, we perform a quantitative evaluation by comparing the estimated fair value of our single reporting unit, determined using the Company’s market capitalization as of the testing date, to its carrying value. For our annual goodwill impairment analysis performed in the fourth quarter of 2021, the result indicated that the estimated fair value of the reporting unit exceeded its carrying value. Accordingly, we concluded goodwill was not impaired. At least annually, we test recoverability of indefinite-lived intangible assets using a qualitative approach that considers whether it is more likely than not that the fair value of the intangible asset exceeds its carrying value. If qualitative factors indicate that it is more likely than not that the indefinite-lived intangible asset is impaired, a quantitative analysis is performed and the amount of any impairment loss recorded, if any, is measured as the difference between the carrying value and the fair value of the impaired intangible asset. We concluded that indefinite-lived intangible assets were not impaired as of December 31, 2021. Definite-Lived Intangible Assets Definite-lived intangible assets consist of assets acquired from a prior business combination and are carried at historical cost less accumulated amortization. Amortization is generally recorded on a straight-lined basis, unless another method is deemed more appropriate, over the estimated useful lives of the assets, generally 12 to 96 months. Impairment of Long-Lived Assets, Including Impairment Related to Real Estate Assets Long-lived assets, including definite-lived intangible assets, are reviewed for impairment whenever events or changes in circumstances indicate an asset’s carrying value may not be recoverable. When the projected undiscounted cash flows estimated to be generated by those assets are less than their carrying amounts, the assets are adjusted to their estimated fair value and an impairment loss is recorded as a component of operating income. Significant judgment is required to estimate the amount and timing of future cash flows and the relative risk of achieving those cash flows. Assumptions and estimates about future values and remaining useful lives are complex and often subjective. They can be affected by a variety of factors, including external factors such as industry and economic trends, and internal factors such as changes in our business strategy and our internal forecasts. Impairment losses could materially decrease our future net income and result in lower asset values on our balance sheet. During the year ended December 31, 2021, we recognized an impairment loss of $66.8 million related to our San Francisco Office Building right-of-use lease asset and related to property and equipment Licenses and Royalties We obtain licenses from third parties for use of their brands, properties and other licensed content in our games (e.g., Hit It Rich! Slots Game of Thrones Slots Casino against future royalty obligations that would otherwise become payable. Each quarter, we evaluate the recoverability of our prepaid royalties as well as any contractual commitments Leases Lessee Arrangements We determine if an arrangement is a lease at contract inception. If there is an identified asset in the contract (either explicitly or implicitly) and we have control over its use, the contract is (or contains) a lease. In determining if there is an identified asset, we apply judgment in assessing whether the supplier has a substantive substitution right based on the supplier’s practical ability to substitute the asset and the economic benefit to do so. If it is determined that a substantive substitution right exists, the contract is not accounted for as a lease. With the respect to the servers utilized in certain of our hosting and data storage arrangements, the Company determined that a substantive substitution right existed given the location of the servers at the supplier’s premises, a lack of contractual restrictions preventing the supplier from substituting the servers throughout the period of use and the economic incentive for the supplier to substitute the servers as needed in order to efficiently handle varying levels of demand from its customers. Our operating leases are primarily for office facilities. Certain leases include options to extend the lease for a set number of years or early terminate the lease prior to the contractually defined expiration date. We include such extension periods in the lease term only when it is reasonably certain that they will be exercised and include such periods beyond the early termination date when it is reasonably certain the early terminations will not be exercised. As of December 31, 2021 and 2020, the weighted-average remaining lease term for all of our operating leases was 8.7 years and 8.9 years, respectively. We record right-of-use assets and current and non-current operating lease liabilities in our consolidated balance sheet for operating leases with lease terms greater than 12 months and do not to apply the balance sheet recognition requirements to leases with lease terms of 12 months or less (“short-term leases”). Additionally, we do not separate lease components from non-lease components and therefore allocate the entire consideration to the lease component(s). Right-of-use assets represent our right to use an underlying asset during the lease term and operating lease liabilities represent our obligation to make lease payments. Right-of-use assets and operating lease liabilities are recognized at the lease commencement date based on the present value of the total required fixed payments over the lease term, with the right-of-use assets further adjusted for any payments made prior to lease commencement, lease incentives received and/or initial direct costs incurred. Certain lease arrangements also include variable payments for costs such as common-area maintenance, utilities, taxes or other operating costs, which are generally based on a percentage of actual expenses incurred or a fluctuating rate which is unknown at the inception of the contract. These variable lease payments are excluded from the measurement of the right-of-use assets and lease liabilities. In determining the present value of lease payments, we discount future lease payments using our incremental borrowing rate since the implicit rate in our various leases is unknown. The incremental borrowing rate is determined at lease commencement for each individual lease and is based on a number of factors, including relevant observable debt transactions, the current economic environment, lease term and currency in which the lease is denominated. As of December 31, 2021 and 2020, the weighted-average incremental borrowing rate for our operating leases was 4.2%. We recognize lease expense for operating leases and short-term leases on a straight-line basis over the lease term. Variable lease payments are recognized when the underlying uncertainty is resolved, which is generally when the obligation for those costs are incurred. Operating and variable leases expenses are presented as operating expenses in the consolidated statement of operations. Lessor Arrangements We do not separate lease components from non-lease com |