The Company and Significant Accounting Policies | The Company and Summary of Significant Accounting Policies The Company We are a world leader in customer-centric digital printing innovation focused on the transformation of the printing, packaging, ceramic tile decoration, and textile industries from the use of traditional analog based printing to digital on-demand printing. Our products include industrial super-wide and wide format display graphics, corrugated packaging and display, textile, and ceramic tile decoration digital inkjet printers, digital ink, industrial digital inkjet printer parts, and professional services; print production workflow, web-to-print, cross-media marketing, fashion design, and business process automation software solutions; and color printing DFEs creating an on-demand digital printing ecosystem. Our ink includes digital UV curable, LED curable, ceramic, water-based, thermoforming, and specialty ink, as well as a variety of textile ink including dye sublimation, pigmented, reactive dye, acid dye, pure disperse dye, water-based dispersed printing ink, and coatings. Our business process automation solutions are integrated from creation to print and are vertically integrated with our industrial inkjet printers, and products produced by the leading printer manufacturers that are driven by our Fiery DFEs. 2017 Out-of-Period Adjustments During the year ended December 31, 2017, we recorded out-of-period adjustments related to certain bill and hold transactions, which decreased revenue by $3.4 million , decreased gross profit by $0.5 million , and increased net loss by $0.3 million (or $0.01 per diluted share). We evaluated these adjustments considering both qualitative and quantitative factors and the impact of these adjustments in relation to each period, as well as the periods in which they originated. Management believes these adjustments were immaterial to these consolidated financial statements and all previously issued financial statements. Significant Accounting Policies Basis of Presentation The accompanying consolidated financial statements include the accounts of EFI and our subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. Use of Estimates The preparation of consolidated financial statements requires estimates and judgments that affect the reported amounts of assets, liabilities, revenue, expenses, comprehensive income, cash flows, and related disclosure of contingent assets and liabilities. We evaluate our estimates, including those related to revenue recognition, bad debts, inventory valuation and purchase commitment reserves, warranty obligations, litigation expenses, restructuring activities, fair value of financial instruments, stock-based compensation, income taxes, valuation of goodwill and intangible assets, business combinations, build-to-suit lease accounting, functional currency determination, contingent consideration in acquisitions, and contingencies on an ongoing basis. Estimates are based on historical and current experience, the impact of the current economic environment, and various other assumptions believed to be reasonable under the circumstances at the time of the estimate, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ materially from these estimates. Cash, Cash Equivalents, and Short-term Investments We invest our excess cash on deposit with major banks in money market, U.S. Treasury and government-sponsored entity, corporate, municipal government, and asset-backed securities. By policy, we invest primarily in high-grade marketable securities. We are exposed to credit risk in the event of default by the financial institutions or issuers of these investments to the extent of amounts recorded on our Consolidated Balance Sheets. We consider all highly liquid investments with an original maturity of three months or less at the time of purchase to be cash equivalents. Typically, the cost of these investments has approximated fair value. Marketable investments with a maturity greater than three months are classified as available-for-sale short-term investments. Available-for-sale securities are stated at fair value with unrealized gains and losses reported as a separate component of AOCI, adjusted for deferred income taxes. The credit portion of any other-than-temporary impairment is included in net income (loss). Realized gains and losses on sales of financial instruments are recognized upon sale of the investments using the specific identification method. We review investments in debt securities for other-than-temporary impairment whenever the fair value is less than the amortized cost and evidence indicates the investment’s carrying amount is not recoverable within a reasonable period of time. We assess the fair value of individual securities as part of our ongoing portfolio management. Our other-than-temporary assessment includes reviewing the length of time and extent to which fair value has been less than amortized cost; the seniority and durations of the securities; adverse conditions related to a security, industry, or sector; historical and projected issuer financial performance, credit ratings, issuer specific news; and other available relevant information. To determine whether an impairment is other-than-temporary, we consider whether we have the intent to sell the debt security or if it will be more likely than not that we will be required to sell the debt security prior to the anticipated recovery of its amortized cost basis, and whether evidence indicating the cost of the investment is recoverable outweighs evidence to the contrary. In determining whether a credit loss existed, we used our best estimate of the present value of cash flows expected to be collected from each debt security. For these cash flow estimates, including prepayment assumptions, we rely on data from widely accepted third party data sources and internal estimates. In addition to prepayment assumptions, cash flow estimates vary based on assumptions regarding the underlying collateral including default rates, recoveries, and changes in value. Expected cash flows were discounted using the effective interest rate implicit in the securities. Based on this analysis, we determined that there were other-than-temporary impairments in our available for sale securities at December 31, 2018. In the three months ended December 31, 2018 we determined that it was more likely than not we would sell a substantial portion of our available for sale securities in anticipation of satisfying our obligation on the 2019 Notes when they mature in September 2019 . We recognized an unrealized loss of $0.9 million which has been reported in interest income and other income, net in the Consolidated Statements of Operations. There were no other than temporary impairments, including credit-related impairments, during the years ended December 31, 2017 and 2016 . We classify our investments as current or noncurrent based on the nature of the investments and their availability for use in current operations. Fair Value of Financial Instruments We assess the fair value of our financial instruments each reporting period. The carrying amounts of cash, cash equivalents, accounts receivable, accounts payable, and accrued and other liabilities, approximate their respective fair values due to the short maturities of these financial instruments and because accounts receivable are reduced by an allowance for doubtful accounts. The fair value of our available-for-sale securities, contingent acquisition-related liabilities, self-insurance liability, derivative instruments, and convertible senior notes are disclosed in Note 8 – Fair Value Measurements. Revenue Recognition On January 1, 2018, we adopted Accounting Standards Codification (“ASC”) 606 Revenue from Contracts with Customers (“ASC 606”) using the modified retrospective method applied to contracts that were not completed as of January 1, 2018. ASC 606 supersedes the revenue recognition requirements in ASC 605, Revenue Recognition (“ASC 605”), and requires the recognition of revenue when promised goods or services are transferred to customers in an amount that reflects the considerations to which the entity expects to be entitled to in exchange for those goods or services. On January 1, 2018, we also adopted ASC 340-40, Other Assets and Deferred Costs – Contracts with Customers (“ASC 340-40”), using the modified retrospective method to all incomplete contracts as of the date of initial application. Results for reporting periods beginning after January 1, 2018 are presented under ASC 606 and ASC 340-40, while prior period amounts are not adjusted and continue to be reported in accordance with our historic accounting under ASC 605. Additional discussion of these recently adopted pronouncements and their impact on our Consolidated Financial Statements is included below under Significant Accounting Policies, in Note 4 – Revenue , and in Note 5 – Supplemental Financial Statement Information . The nature of our products and services are as follows: Hardware . Our hardware, such as Industrial Inkjet printers, Productivity Software devices, and Fiery DFEs, is generally sold with software that is integral to the functionality of the product. In these cases, the hardware and software license are accounted for as a single performance obligation. The contract consideration is generally in the form of a fixed fee at contract inception and revenue is recognized at the point in time when control is transferred to the customer. Consideration received from customers may include trade-in printers, which are valued at the lower of cost or net realizable value. We offer shipping and handling services to customers related to the sale of hardware. We have elected the practical expedient to account for shipping and handling activities performed after transferring control of goods to our customer as a cost to fulfill the contract. The cost of shipping and handling is accrued at the point in which control transfers to the customer and revenue is recognized. Ink . We typically enter into contracts with our existing customer base of installed printers to purchase ink that is not bundled with other deliverables within the contract. The ink is accounted for as a single performance obligation and revenue is recognized at the point in time when control of the ink is transferred to the customer. Licenses . Our software license arrangements provide the customer with the right to install and use functional intellectual property (as it exists at the point in time at which the license is granted) for the duration of the contract term (perpetual or term license). Revenue from distinct software licenses is recognized at the point in time when the software is made available to the customer for download. Maintenance . Our software license arrangements typically include an initial (bundled) post contract customer support (maintenance or “PCS”) term. Our promise to those customers who elect to purchase PCS represents a distinct, stand-alone performance obligation. Contract consideration is allocated to the PCS based on its relative SSP and revenue is recognized over the PCS term. Professional Services . We provide various professional services to customers, primarily project management, software implementation, non-recurring engineering design, and training. Revenues from arrangements to provide professional services are generally distinct from the other promises in the contract(s). The majority of our professional services contracts are billed on a time and materials basis and revenue is recognized over time as the services are performed. Software as a Service . Our SaaS-based arrangements provide customers with continuous access to our software solutions in the form of a service hosted in the cloud. These arrangements may include initial implementation and setup and/or on-going support that represent a single promise (i.e. each individual promised component is not distinct) to provide continuous access to the software solution. Any setup fees associated with our SaaS arrangements are recognized ratably over the contract term plus expected renewal periods. As the customer simultaneously receives and consumes the benefits as access is provided, our performance obligation under our SaaS-based arrangements is comprised of a series of distinct components delivered over time. Our SaaS-based arrangements consideration is typically fixed. Extended Service Plans (“ESP”) . For our hardware arrangements, we enter into contracts with certain customers to provide services to maintain and repair the hardware for an extended period. ESPs are classified as service-type warranties under ASC 606 as they are sold separately and provide services which are incremental to the assurance that the product will perform to the agreed upon standards. The ESPs are accounted for as a separate performance obligation. Revenue from ESPs are recognized ratably over the contract period as the service is provided. Contracts With Multiple Performance Obligations. For customer arrangements that include multiple products or services, judgment is required to determine the standalone selling price (“SSP”) for each distinct performance obligation. Where an observable price is not available, we gather all reasonable available data points, consider adjustments based on market conditions, entity-specific factors, and the need to stratify selling prices into meaningful groups (e.g., geographic region) in determining SSP. We allocate the total contract consideration to each distinct performance obligation on a relative SSP basis. Revenue is then recognized in accordance with the timing of the transfer of control to the customer for each performance obligation. Assessing Collectibility. We apply judgment in determining the customer’s ability and intention to pay. Judgments are made after considering a variety of factors including the customer’s historical payment experience, current creditworthiness, current economic impacts on the customer, past due balances, and significant one-time events or, in the case of a new customer, published credit and financial information. Contract Acquisition Costs. Management exercises judgment to determine the period of benefit to amortize contract acquisition costs by considering factors such as expected renewals of customer contracts, duration of customer relationships and our technology development life cycle. Although we believe that the historical assumptions and estimates we have made are reasonable and appropriate, different assumptions and estimates could materially impact our reported financial results. Amortization of deferred contract acquisition costs is included in sales and marketing expense in the Consolidated Statements of Operations. We periodically review these deferred costs to determine whether events or changes in circumstances have occurred that could impact the period of benefit of these deferred contract acquisition costs. Shipping and Handling Costs. Amounts billed to customers for shipping and handling costs are included in revenue. Shipping and handling costs are charged to cost of revenue as incurred. Significant Financing Component. Effective January 1, 2018 under ASC 606, for contracts with extended payment terms greater than 12 months, we determine whether the implicit financing component is significant or not. If significant, we defer the portion of the revenue represented by the significant financing component and recognize it as interest income over the term of the contract using the effective interest method. Prior Period Revenue Recognition. For the years ended December 31, 2017 and 2016, prior to the adoption of ASC 606, we recognize revenue on the sale of DFEs, printers, and ink in accordance with the provisions of SAB 104, Revenue Recognition, and when applicable, ASC 605-25. As such, revenue was generally recognized when persuasive evidence of an arrangement exists, the product has been delivered or services have been rendered, the fee is fixed or determinable, and collection is reasonably assured. Service sales, principally representing software license and printer maintenance agreements, customer support, training, and consulting were recognized over the contractual period or as services were rendered. Subscription arrangements where the customer pays a fixed fee and receives services over a period of time were recognized ratably over the service period. Any up front setup fees associated with our subscription arrangements were recognized ratably, generally over one year. Revenue from contracts with multiple element arrangements involving tangible products containing software and non-software components that function together to deliver the product’s essential functionality by applying the relative sales price method of allocation were recognized in accordance with ASC 605-25. The sales price for each element was determined using vendor-specific objective evidence ("VSOE") when available (including post-contract customer support, professional services, hosting, and training). When VSOE was not available, then third party evidence ("TPE") was used. If VSOE or TPE are not available, then best estimated selling price was used when applying the relative sales price method for each unit of accounting. When the arrangement included software and non-software elements, revenue was first allocated to the non-software and software elements as a group based on their relative sales price. Thereafter, the relative sales price allocated to the software elements as a group was further allocated to each unit of accounting in accordance with ASC 985-605. Leasing Arrangements. If the sales arrangement is classified as a sales-type lease, then revenue is recognized upon shipment. Leases that are not classified as sales-type leases are accounted for as operating leases with revenue recognized ratably over the lease term. A lease is classified as a sales-type lease with revenue recognized upon shipment if the lease is determined to be collectible and has no significant uncertainties and if any of the following criteria are satisfied: • present value of all minimum lease payments is greater than or equal to 90% of the fair value of the equipment at lease inception, • noncancellable lease term is greater than or equal to 75% of the economic life of the equipment, • bargain purchase option that allows the lessee to purchase the equipment below fair value, or • transfer of ownership to the lessee upon termination of the lease. Deferred Revenue. Deferred revenue represents amounts received in advance for product support contracts, software customer support contracts, consulting and integration projects, or product sales. Product support contracts include stand-alone product support packages, routine maintenance service contracts, and upgrades or extensions to standard product warranties. We defer these amounts when we invoice the customer and then generally recognize revenue either ratably over the support contract life, upon performing the related services, under the percentage of completion method, or in accordance with our revenue recognition policy. Allowance for Doubtful Accounts and Sales-related Allowances We establish an allowance for doubtful accounts to ensure that trade receivables are not overstated due to uncollectibility. We record specific reserves for individual accounts when we become aware of specific customer circumstances, such as bankruptcy filings, deterioration in the customer’s operating results or financial position, or potential unfavorable outcomes from disputes with customers or vendors. We perform ongoing credit evaluations of the financial condition of our customers and require collateral, such as letters of credit and bank guarantees, in certain circumstances. The past due or delinquency status of a receivable is based on the contractual payment terms of the receivable. Balances are written off when we deem it probable that the receivable will not be recovered. We make provisions for sales rebates and revenue adjustments based on analysis of current sales programs and revenue in accordance with our revenue recognition policy. Concentration of Risk We are exposed to credit risk in the event of default by any of our customers to the extent of amounts recorded on the Consolidated Balance Sheets. We perform ongoing evaluations of the collectibility of accounts receivable balances for our customers and maintain allowances for estimated credit losses. Actual losses have not historically been significant, but have increased over the past several years as our customer base has grown through acquisitions. Our Fiery products, which constitute approximately 23% of revenue for the year ended December 31, 2018 , are primarily sold to a limited number of leading printer manufacturers. We expect that we will continue to depend on a relatively small number of leading printer manufacturers for a significant portion of our revenue, although their significance is expected to decline in future periods as our revenue increases from Industrial Inkjet and Productivity Software products. We generally have experienced longer accounts receivable collection cycles in our Industrial Inkjet and Productivity Software operating segments compared to our Fiery operating segment as, historically, the leading printer manufacturers have paid on a more timely basis. Down payments are generally required from Industrial Inkjet and Productivity Software customers as a means to ensure payment. Since Europe is composed of varied countries and regional economies, our European risk profile is somewhat more diversified due to the varying economic conditions among the countries. Approximately 37% of our receivables are with European customers as of December 31, 2018 . Of this amount, 27% of our European receivables ( 10% of consolidated gross receivables) are in the higher risk southern European countries (mostly Italy, Spain, and Portugal), which our management believes to be adequately reserved. Inventories Inventories are generally stated at standard cost, which approximates the lower of actual cost, using the first-in, first-out (“FIFO”) cost flow assumption, or market. Reggiani inventories are stated at weighted average cost, which approximates the FIFO cost flow assumption, or market. We periodically review our inventories for potential excess or obsolete items and write down specific items to net realizable value as appropriate. Work-in-process inventories consist of our product at various levels of assembly and include materials, labor, and manufacturing overhead. Finished goods inventory represents completed products awaiting shipment. We estimate potential inventory obsolescence and purchase commitments to evaluate the need for inventory reserves. Current economic trends, changes in customer demand, historical sales experience, product design changes, product life, demand, and the acceptance of our products are analyzed to evaluate the adequacy of such reserves. Property and Equipment, Net Property and equipment are recorded at cost. Depreciation is computed using the straight-line method over the estimated useful lives of the assets as follows: desktop, laptop computers, and computer server equipment ( two to three years), software under perpetual licenses ( three to five years), manufacturing equipment ( seven years), testing and other equipment ( three years), tooling (lesser of three years or the product life), research and development equipment with alternative future uses ( three years), equipment leased to customers on operating leases (greater of three years or the lease term), furniture ( five years), land improvements such as parking lots or sidewalks ( seven years), leasehold improvements (the shorter of the useful life or lease term), building improvements ( five to ten years), building and improvements under a build-to-suit lease ( forty years), and purchased buildings ( forty years). When assets are retired or disposed, the asset and accumulated depreciation are removed from our Consolidated Balance Sheets, with any gain or loss recognized in our Statements of Operations. Repairs and maintenance expenditures are expensed as incurred, unless they are improvements that extend the useful life of the asset. Goodwill Goodwill is recorded when the consideration paid for an acquisition exceeds the fair value of net tangible and identified intangible assets acquired. We perform our annual goodwill impairment analysis in the fourth quarter of each year or more frequently if we believe indicators of potential impairment exist. Triggering events that may require an interim impairment analysis include indicators such as adverse industry or economic trends, restructuring actions, significant changes in the manner of our use of the acquired assets, significant changes in the strategy for our overall business, our assessment of growth and profitability in each reporting unit for future years, significant decline in our stock price for a sustained period, or a sustained decline in our market capitalization relative to net book value. In our goodwill impairment assessment, we compare the fair value of each reporting unit to its carrying value. If the fair value of a reporting unit exceeds the carrying amount of the net assets assigned to that reporting unit, goodwill is not impaired. If the fair value of the reporting unit is less than its carrying amount, goodwill is impaired and the excess of the reporting unit’s carrying value over the fair value is recognized as an impairment loss. Long-lived Assets, including Intangible Assets Purchased intangible assets are amortized on a straight-line basis over their economic lives of two to six years for developed technology, three to nine years for customer contracts/relationships, four to five years for covenants not to compete, and three to sixteen years for trademarks and trade names as we believe this method most closely reflects the pattern in which the economic benefits of the assets will be consumed. We review the carrying values of long-lived assets whenever events and circumstances, such as reductions in demand, lower projections of profitability, significant changes in the manner of our use of acquired assets, or significant negative industry or economic trends, indicate that the net book value of an asset may not be recovered through expected future cash flows from its use and eventual disposition. An asset is considered impaired if its carrying amount exceeds the undiscounted future cash flow the asset is expected to generate. If this review indicates that an impairment has occurred, the impaired asset is written down to its fair value, which is typically calculated using quoted market prices and/or discounted expected future cash flows. Our estimates regarding future anticipated net revenue and cash flows, the remaining economic life of the products and technologies, or both, may differ from those used to assess the recoverability of assets. In that event, impairment charges or shortened useful lives of certain long-lived assets may be required, resulting in charges to our Consolidated Statements of Operations when such determinations are made. An impairment loss is recorded for long-lived assets held-for-sale when the carrying amount of the asset exceeds its estimated fair value less cost to sell. A long-lived asset is not depreciated while it is classified as held-for-sale. Warranty Reserves Our Industrial Inkjet printers are generally accompanied by a 13 -month limited warranty commencing on the installation date, which covers both parts and labor. Our Fiery DFE limited warranty is 12 to 15 months. Estimated future hardware and software warranty costs are recorded as a cost of product revenue when the related revenue is recognized based on historical and projected warranty claim rates, historical and projected cost-per-claim, and knowledge of specific product failures that are outside our typical experience. Factors that affect our warranty liability include the number of installed units subject to warranty protection, product failure rates, and estimated material, distribution, and labor costs. We have agreed to continue to provide warranty coverage for certain expired FFPS warranties for five years subsequent to the acquisition date of the FFPS business. Restructuring Reserves Restructuring liabilities are established when the costs have been incurred. Severance and other employee separation costs are incurred when management commits to a plan of termination identifying the number of employees impacted, their termination dates, and the terms of their severance arrangements. The liability is accrued at the employee notification date unless service is required beyond the greater of 60 days or the legal notification period, in which case the liability is recognized ratably over the service period. Facility downsizing and closure costs are accrued at the earlier of the lessor notification date, if the lease agreement allows for early termination, or the cease use date. Relocation costs are incurred when the related relocation services are performed. Costs related to contracts without future benefit are incurred at the earlier of the cease use date or the contract cancellation date. Research and Development Research and development costs include salaries and benefits of employees performing research and development activities, supplies, and other expenses incurred from research and development efforts, and are expensed as incurred. We expense research and development costs associated with new software products as incurred until technological feasibility is established. To date, we have not capitalized research and development costs associated with software development as products and enhancements have generally reached technological feasibility, as defined by U.S. GAAP, and have been released for sale at substantially the same time. We have capitalized research and development equipment that has been acquired or constructed for research and development activities and has alternative future uses (in research and development projects or otherwise). Such research and development equipment is depreciated on a straight-line basis over a three -year useful life. Advertising Advertising costs are expensed as incurred. Total advertising and promotional expenses were $6.7 , $5.9 , and $4.6 million for the years ended December 31, 2018 , 2017 , and 2016 , respectively. Income Taxes We account for income taxes in accordance with the provisions of ASC 740, which requires that deferred tax assets and liabilities be determined based on the differences between the financial statement and tax bases of assets and liabilities by using enacted tax rates in effect for the year in which the differences are expected to reverse. Accordingly, the tax bases of assets and liabilities reflect the impact of the tax reform legislation that was enacted on December 22, 2017. We estimate our actual current tax expense including permanent charges and benefits and the temporary differences resulting from differing treatment of items for tax and financial accounting purposes. These temporary differences result in deferred tax assets and liabilities, which are included on our Consolidated Balance Sheets. In some cases, provisional amounts were recorded based on reasonable estimates. SAB 118 provides that the measurement period may not extend beyond one year from the enactment date. We recorded the provisional amounts of the tax effects of the 2017 Tax Act in 2017, and finalized the calculation of the tax effects in 2018. We assess the likelihood that our deferred tax assets will be recovered from future taxable income by considering both positive and negative evidence relating to their recoverability. If we believe that recovery of these deferred tax assets is not more likely than not, we establish a valuation allowance. Significant judgment is required in determining any valuation allowance recorded against deferred tax assets. We account for uncertainty in income taxes by recognizing a tax position only when it is more likely than not that the tax position, based on its technical merits, will be sustained upon ultimate settlement with the applicable tax authority. The tax benefit to be recognized is the largest amount of tax benefit that is greater than fifty percent likely of being realized upon ultimate settlement with the applicable tax authority that has full knowledge of |