BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Business, consolidation and presentation — We are a leading worldwide provider of payment technology and software services delivering innovative solutions to our customers globally. Our technologies, services and employee expertise enable us to provide a broad range of solutions that allow our customers to accept various payment types and operate their businesses more efficiently. We distribute our services across a variety of channels in 32 countries throughout North America, Europe, the Asia-Pacific region and Brazil and operate in three reportable segments: North America, Europe and Asia-Pacific. We were incorporated in Georgia as Global Payments Inc. in 2000 and spun-off from our former parent company in 2001 . Including our time as part of our former parent company, we have been in the payment technology services business since 1967 . Global Payments Inc. and its consolidated subsidiaries are referred to collectively as "Global Payments," the "Company," "we," "our" or "us," unless the context requires otherwise. These consolidated financial statements include our accounts and those of our majority-owned subsidiaries and all intercompany balances and transactions have been eliminated in consolidation. These consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States ("GAAP"). On July 27, 2016, the board of directors authorized a change in our fiscal year end from May 31 to December 31. We refer to the period consisting of the seven months ended December 31, 2016 as the "2016 fiscal transition period." Use of estimates — The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenues and expenses during the reported period. Actual results could differ materially from those estimates. Recently Adopted Accounting Pronouncements and Rules Issued by the U.S. Securities and Exchange Commission (the "SEC") — We adopted Accounting Standards Update ("ASU") 2014-09, "Revenues from Contracts with Customers (Topic 606)" as well as other clarifications and technical guidance issued by the Financial Accounting Standards Board ("FASB") related to this new revenue standard ("ASC 606") and ASC Subtopic 340-40: "Other Assets and Deferred Costs - Contracts with Customers" ("ASC 340-40") on January 1, 2018. We elected the modified retrospective transition method, which resulted in a net increase to retained earnings of $51.0 million for the cumulative effect of applying the standard. The primary components of the cumulative-effect adjustment were changes in the accounting for certain costs to obtain customer contracts and the related income tax effects, which resulted in increases to other noncurrent assets and deferred income tax liabilities of $64.6 million and $15.6 million , respectively. Previously, we amortized these assets to expense over the related contract term. Under ASC 340-40, we now amortize these assets over the expected period of benefit, which is generally longer than the initial contract term. Under the new standard, we also capitalized certain costs that were not previously capitalized, including certain commissions and the related payroll taxes and certain costs incurred to fulfill a contract before the performance obligation has been satisfied, primarily compensation and related payroll taxes for employees engaged in customer implementation activities in our technology-enabled businesses. Prior to the adoption of ASC 606, we presented payments made to certain third parties, including payment networks, as a component of operating expenses. For the year ended December 31, 2018 , we presented revenue net of these third-party payments. This change in presentation had the effect of reducing our revenues and operating expenses by the same amounts. As a result, revenues, cost of service and selling, general and administrative expenses were lower than the amounts that would have been presented if not for the effect of the new revenue accounting standard by $1,110.8 million , $1,042.9 million and $67.9 million , respectively, for the year ended December 31, 2018 . The adoption of ASC 606 did not have a material effect on any other line items in our consolidated statement of income for year ended December 31, 2018 or on any other line items in our consolidated balance sheet as of December 31, 2018 and had no effect on our cash flows from operating activities, investing activities or financing activities included in our consolidated statement of cash flows for the year ended December 31, 2018 . In October 2018, the FASB issued ASU 2018-16, "Derivatives and Hedging (Topic 815): Inclusion of the Secured Overnight Financing Rate (SOFR) Overnight Index Swap (OIS) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes ." ASU 2018-16 provides for the use of the Overnight Index Swap ("OIS") rate based on Secured Overnight Financing Rate as a U.S. benchmark interest rate for hedge accounting purposes under Topic 815. In addition to the interest rates on direct Treasury obligations of the U.S. government, the London Interbank Offered Rate ("LIBOR") Swap Rate, the OIS rate based on the Fed Funds Effective Rate and the Securities Industry and Financial Markets Association Municipal Swap Rate are also permitted. We adopted ASU 2018-16 with no effect on our consolidated financial statements. In August 2018, the SEC issued a final rule that amends certain of its disclosure requirements. The changes are generally intended to reduce or eliminate certain disclosures that have become redundant, duplicative, overlapping, outdated or superseded in light of other disclosures requirements or changes in the information environment. The rule also requires SEC registrants to present changes in stockholders' equity and the amount of dividends per share for each class of shares on a quarterly basis for the current and prior-year periods. The final rule was effective for SEC filings on Forms 10-Q and 10-K made on or after November 5, 2018. As a result, we have reduced or eliminated certain disclosures in this Annual Report on Form 10-K for the year ended December 31, 2018 , as permitted, and we will present the quarterly changes in 2019. In February 2018, the FASB issued ASU 2018-02, "Income Statement-Reporting Comprehensive Income: Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income ." ASU 2018-02 provides an option to reclassify stranded tax effects within accumulated other comprehensive income ("AOCI") to retained earnings in each period in which the effect of the change in the U.S. federal corporate income tax rate in the U.S. Tax Cuts and Jobs Act of 2017 (the "2017 U.S. Tax Act") is recorded. We adopted this ASU during 2018 and elected the option to reclassify stranded tax effects within AOCI to retained earnings in the period of adoption with no material effect on our consolidated financial statements. Under this transition method, we did not recast the prior-period financial statements presented. In August 2017, the FASB issued ASU 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities ." ASU 2017-12 expands and refines hedge accounting for both nonfinancial and financial risk components and aligns the recognition and presentation of the effects of the hedging instrument and the hedged item in the financial statements. In addition, the amendments in this update modify disclosure requirements for presentation of hedging activities. Those modifications include a tabular disclosure related to the effect on the income statement of fair value and cash flow hedges and eliminate the requirement to disclose the ineffective portion of the change in fair value of hedging instruments, if any. We adopted ASU 2017-12 on January 1, 2018 with no effect on our consolidated financial statements, except required revisions to our disclosures. In January 2017, the FASB issued ASU 2017-01, "Business Combinations (Topic 805): Clarifying the Definition of a Business ." ASU 2017-01 clarifies the definition of a business, which affects many areas of accounting including acquisitions, disposals, goodwill and consolidation. The new standard is intended to help companies and other organizations evaluate whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses, with the expectation that fewer will qualify as acquisitions (or disposals) of businesses. ASU 2017-01 became effective for us on January 1, 2018. These amendments have been applied prospectively from the date of adoption. We applied the clarified definition of a business to the business combinations we completed in 2018 with no effect on our consolidated financial statements. In October 2016, the FASB issued ASU 2016-16, "Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory ." The amendments in this update state that an entity should recognize the income tax consequences of an intra-entity transfer of an asset other than inventory, such as intellectual property and property and equipment, when the transfer occurs. We adopted ASU 2016-16 on January 1, 2018 using the modified retrospective transition method with no material effect on our consolidated financial statements. In January 2016, the FASB issued ASU 2016-01, "Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, " which was further clarified in ASU 2018-03, issued by the FASB in February 2018. The amendments in ASU 2016-01 and ASU 2018-03 address certain aspects of recognition, measurement, presentation and disclosure of financial instruments. The amendments supersede the guidance to classify equity securities with readily determinable fair values into different categories (that is, trading or available-for-sale) and require equity securities (including other ownership interests, such as partnerships, unincorporated joint ventures and limited liability companies) to be measured at fair value with changes in the fair value recognized through earnings. Equity investments that are accounted for under the equity method of accounting or result in consolidation of an investee are not included within the scope of this update. The amendments allow equity investments that do not have readily determinable fair values to be remeasured at fair value either upon the occurrence of an observable price change or upon identification of an impairment. The amendments also require enhanced disclosures about those investments. We adopted ASU 2016-01 on January 1, 2018 using the modified retrospective transition method and elected to account for certain of our equity investments that have no readily determinable fair value using the alternative cost method, which had no effect on our consolidated financial statements. Revenue recognition — Our payment services customers contract with us for payment services, which we provide in exchange for consideration for completed transactions. Our payment solutions are similar around the world in that we enable our customers to accept card, electronic, check and digital-based payments. Our comprehensive offerings include, but are not limited to, authorization services, settlement and funding services, customer support and help-desk functions, chargeback resolution, payment security services, consolidated billing and statements and on-line reporting. In addition, we may sell or rent point-of-sale terminals or other equipment to customers. On January 1, 2018, we adopted ASC 606. Pursuant to ASC 606, at contract inception, we assess the goods and services promised in our contracts with customers and identify a performance obligation for each promise to transfer to the customer a good or service that is distinct. For our payment services specifically, the nature of our promise to the customer is that we stand ready to process transactions the customer requests on a daily basis over the contract term. Since the timing and quantity of transactions to be processed by us is not determinable, we view payment services to comprise an obligation to stand ready to process as many transactions as the customer requests. Under a stand-ready obligation, the evaluation of the nature of our performance obligation is focused on each time increment rather than the underlying activities. Therefore, we view payment services to comprise a series of distinct days of service that are substantially the same and have the same pattern of transfer to the customer. Accordingly, the promise to stand ready is accounted for as a single-series performance obligation. In order to provide our payment services, we route and clear each transaction through the applicable payment network. We obtain authorization for the transaction and request funds settlement from the card issuing financial institution through the payment network. When third parties are involved in the transfer of goods or services to our customer, we consider the nature of each specific promised good or service and apply judgment to determine whether we control the good or service before it is transferred to the customer or whether we are acting as an agent of the third party. To determine whether or not we control the good or service before it is transferred to the customer, we assess indicators including whether we or the third party is primarily responsible for fulfillment and which party has discretion in determining pricing for the good or service, as well as other considerations. Based on our assessment of these indicators, we have concluded that our promise to our customer to provide our payment services is distinct from the services provided by the card issuing financial institutions and payment networks in connection with payment transactions. We do not have the ability to direct the use of and obtain substantially all of the benefits of the services provided by the card issuing financial institutions and payment networks before those services are transferred to our customer, and on that basis, we do not control those services prior to being transferred to our customer. As a result, upon adoption of ASC 606, we present our revenue net of the interchange fees charged by the card issuing financial institutions and the fees charged by the payment networks. The majority of our payment services are priced as a percentage of transaction value or a specified fee per transaction, depending on the card type. We also charge other per occurrence fees based on specific services that may be unrelated to the number of transactions or transaction value. Given the nature of the promise and the underlying fees based on unknown quantities or outcomes of services to be performed over the contract term, the total consideration is determined to be variable consideration. The variable consideration for our payment service is usage-based and, therefore, it specifically relates to our efforts to satisfy our payment services obligation. The variability is satisfied each day the service is provided to the customer. We directly ascribe variable fees to the distinct day of service to which it relates, and we consider the services performed each day in order to ascribe the appropriate amount of total fees to that day. Therefore, we measure revenue for our payment service on a daily basis based on the services that are performed on that day. Certain of our technology-enabled customer arrangements contain multiple promises, such as payment services, perpetual software licenses, software-as-a-service ("SaaS"), maintenance, installation services, training and equipment, each of which is evaluated to determine whether it represents a separate performance obligation. SaaS arrangements are generally offered on a subscription basis, providing the customers with access to the SaaS platform along with general support and maintenance services. Because these promised services within our SaaS arrangements are delivered concurrently over the contract term, we account for these promises as if they are a single performance obligation that includes a series of distinct services with the same pattern of transfer to the customer. In addition, certain installation services are not considered distinct from the SaaS and are recognized over the expected period of benefit. Once we determine the performance obligations and the transaction price, including an estimate of any variable consideration, we then allocate the transaction price to each performance obligation in the contract using a relative standalone selling price method. We determine standalone selling price based on the price at which the good or service is sold separately. If the standalone selling price is not observable through past transactions, we estimate the standalone selling price by considering all reasonably available information, including market conditions, trends or other company- or customer-specific factors. Substantially all of the performance obligations described above are satisfied over time. The performance obligations associated with equipment sales, perpetual software licenses and certain professional services are generally satisfied at a point in time when they are transferred to the customer. For certain other professional services that represent separate performance obligations, we generally use the input method and recognize revenue based on the number of hours incurred or services performed to date in relation to the total services expected to be required to satisfy the performance obligation. We satisfy the combined SaaS performance obligation by standing ready to provide access to the SaaS. Consideration for SaaS arrangements may consist of fixed- or usage-based fees. Revenue is recognized over the period for which the services are provided or by directly ascribing any variable fees to the distinct day of service based on the services that are performed on that day. For periods prior to our adoption of ASC 606, we recognized revenue when services were performed. For arrangements with multiple elements, such as equipment, perpetual licenses, SaaS, maintenance, installation and training, we allocated consideration to each element based on the relative-selling-price method. In multiple element arrangements where more-than-incidental software elements were included, the entire amount of revenue under the arrangement was deferred until all elements were delivered or objective evidence of the fair value of the undelivered items was established. The amounts paid in advance by customers and amounts deferred for software arrangements were reflected as unearned revenue in the consolidated balance sheets with the portion estimated to be recognized as revenue within the next twelve months reflected in current liabilities and the remainder reflected in other noncurrent liabilities. Cash and cash equivalents — Cash and cash equivalents include cash on hand and all liquid investments with a maturity of three months or less when purchased. We consider certain portions of our cash and cash equivalents to be unrestricted but not available for general purposes. The amount of cash that we consider to be available for general purposes does not include the following: (i) settlement-related cash balances, (ii) funds held as collateral for merchant losses ("Merchant Reserves") and (iii) funds held for customers. Settlement-related cash balances represent funds that we hold when the incoming amount from the card networks precedes the funding obligation to the merchant. Settlement-related cash balances are not restricted; however, these funds are generally paid out in satisfaction of settlement processing obligations the following day. Merchant Reserves serve as collateral to minimize contingent liabilities associated with any losses that may occur under the merchant agreement. We record a corresponding liability in settlement processing assets and settlement processing obligations in our consolidated balance sheet. While this cash is not restricted in its use, we believe that designating this cash as Merchant Reserves strengthens our fiduciary standing with financial institutions that sponsor us and is in accordance with guidelines set by the card networks. See "Note 4 — Settlement Processing Assets and Obligations" and discussion below for further information. Funds held for customers and the corresponding liability that we record in "customer deposits" include amounts collected prior to remittance on our customers' behalf. Accounts receivable, contract assets and contract liabilities — Upon adoption of ASC 606, we were required to describe our accounting policies for accounts receivable, contract assets and contract liabilities. A contract with a customer creates legal rights and obligations. As we perform under customer contracts, our right to consideration that is unconditional is considered to be accounts receivable. If our right to consideration for such performance is contingent upon a future event or satisfaction of additional performance obligations, the amount of revenues we have recognized in excess of the amount we have billed to the customer is recognized as a contract asset. Contract liabilities represent consideration received from customers in excess of revenues recognized. At December 31, 2018, contract assets and liabilities are presented net at the individual contract level in the consolidated balance sheet and are classified as current or noncurrent based on the nature of the underlying contractual rights and obligations. Contract Costs — Upon adoption of ASC 340-40, we capitalize costs we incur costs to obtain contracts with customers, including employee sales commissions and fees to business partners. At contract inception, we capitalize such costs that we expect to recover and that would not have been incurred if the contract had not been obtained. We also capitalize certain costs incurred to fulfill our contracts with customers that (i) relate directly to the contract, (ii) are expected to generate resources that will be used to satisfy our performance obligation under the contract and (iii) are expected to be recovered through revenue generated under the contract. Capitalized costs to obtain and to fulfill contracts were included in other noncurrent assets as of December 31, 2018 . Contract costs are amortized on a systematic basis consistent with the transfer to the customer of the goods or services to which the asset relates. A straight-line or proportional amortization method is used depending upon which method best depicts the pattern of transfer of the goods or services to the customer. We evaluate contract costs for impairment by comparing, on a pooled basis, the expected future net cash flows from underlying customer relationships to the carrying amount of the capitalized contract costs. We amortize these assets over the expected period of benefit, which, based on the factors noted above, is typically seven years . In order to determine the appropriate amortization period for capitalized contract costs, we consider a combination of factors, including customer attrition rates, estimated terms of customer relationships, the useful lives of technology we use to provide goods and services to our customers, whether future contract renewals are expected and if there is any incremental commission to be paid associated with a contract renewal. Costs to obtain a contract with an expected period of benefit of one year or less are recognized as an expense when incurred. Prior to our adoption of ASC 606, we capitalized certain customer acquisition costs, which were included in other noncurrent assets. Capitalized customer acquisition costs consisted of (1) up-front signing bonus payments made to certain salespersons for the establishment of certain of our new merchant relationships and (2) a deferred acquisition cost representing the estimated cost of buying out the residual commissions of certain vested salespersons. Capitalized customer acquisition costs represented incremental, direct customer acquisition costs that were recoverable through merchant profitability. The capitalized customer acquisition costs were amortized using a method which approximated a proportional revenue approach over the initial term of the related merchant contract. Up-front signing bonuses paid for certain new accounts were based on the estimated profitability for the first year of the merchant contract. The signing bonus, amount capitalized, and related amortization were adjusted after the first year to reflect the actual profitability generated by the merchant contract during that year. The deferred customer acquisition cost asset was accrued over the first year of merchant processing, consistent with the build-up in the accrued buyout liability, as described below. Settlement processing assets and obligations — Settlement processing assets and obligations represent intermediary balances arising in our settlement process. In accordance with ASC Subtopic 210-20, "Offsetting," we apply offsetting to our settlement processing assets and obligations where a right of setoff exists. See "Note 4 — Settlement Processing Assets and Obligations" for further information . Reserve for operating losses — Our merchant customers are liable for any charges or losses that occur under the merchant agreement. We experience losses in our card processing services when we are unable to collect amounts from merchant customers for any charges properly reversed by the card issuing financial institutions. When we are not able to collect these amounts from the merchants due to merchant fraud, insolvency, bankruptcy or any other reason, we may be liable for the reversed charges. We require cash deposits, guarantees, letters of credit and other types of collateral from certain merchants to minimize any such contingent liability, and we also utilize a number of systems and procedures to manage merchant risk. We experience check guarantee losses when we are unable to collect the full amount of a guaranteed check from the checkwriter. We refer to both merchant credit losses and check guarantee losses as "operating losses." We record an estimated liability for operating losses comprised of estimated known losses and estimated incurred but not reported losses. Property and equipment — Property and equipment are stated at cost less accumulated depreciation and amortization. Depreciation and amortization are calculated using the straight-line method. Leasehold improvements are amortized over the lesser of the remaining term of the lease and the useful life of the asset. We develop software that is used to provide services to customers. Capitalization of internal-use software, primarily associated with operating platforms, occurs when we have completed the preliminary project stage, management authorizes the project, management commits to funding the project, it is probable the project will be completed and the project will be used to perform the function intended. The preliminary project stage consists of the conceptual formulation of alternatives, the evaluation of alternatives, the determination of existence of needed technology and the final selection of alternatives. Costs incurred during the preliminary project stage are expensed as incurred. Goodwill — We perform our annual goodwill impairment test as of October 1. We test goodwill for impairment at the reporting unit level annually and more often if an event occurs or circumstances change that indicate the fair value of a reporting unit is below its carrying amount. We have the option of performing a qualitative assessment of impairment to determine whether any further quantitative assessment for impairment is necessary. The option of whether or not to perform a qualitative assessment is made annually and may vary by reporting unit. Factors we consider in the qualitative assessment include general macroeconomic conditions, industry and market conditions, cost factors, overall financial performance of our reporting units, events or changes affecting the composition or carrying amount of the net assets of our reporting units, sustained decrease in our share price, and other relevant entity-specific events. If we elect to bypass the qualitative assessment or if we determine, on the basis of qualitative factors, that the fair value of the reporting unit is more likely than not less than the carrying amount, a quantitative test would be required. We have seven reporting units: North America Payments, Integrated Solutions and Vertical Markets, United Kingdom, Asia-Pacific, Central and Eastern Europe, Russia and Spain. As of October 1, 2018 , we elected to perform a qualitative assessment of impairment for each of our reporting units. We determined on the basis of qualitative factors that the fair value of each reporting unit was not more likely than not less than the respective carrying amount. We believe that the fair value of each of our reporting units is substantially in excess of its carrying amount. Other intangible assets — Other intangible assets include customer-related intangible assets (such as customer lists and merchant contracts), contract-based intangible assets (such as noncompete agreements, referral agreements and processing rights), acquired technologies, trademarks and trade names associated with business combinations. These assets are amortized over their estimated useful lives. The useful lives for customer-related intangible assets are determined based primarily on forecasted cash flows, which include estimates for the revenues, expenses, and customer attrition associated with the assets. The useful lives of contract-based intangible assets are equal to the terms of the agreements. The useful lives of amortizable trademarks and trade names are based on our plans to use the trademarks and trade names in the applicable markets. We use the straight-line method of amortization for our amortizable acquired technologies, trademarks and trade names and contract-based intangibles. Amortization for most of our customer-related intangible assets is calculated using an accelerated method in which we calculate the expected cash flows for that period that were used in determining the acquisition-date fair value of the asset and divide that amount by the expected total cash flows over the estimated life of the asset. We multiply that percentage by the initial carrying amount of the asset to arrive at the amortization expense for that period. If the cash flow patterns that we experience differ significantly from our initial estimates, we adjust the amortization schedule prospectively. These cash flow patterns are derived using certain assumptions and cost allocations due to a significant number of asset interdependencies that exist in our business. We believe that our accelerated method reflects the expected pattern of the benefit to be derived from the acquired customer relationships. Impairment of long-lived assets — We regularly evaluate whether events and circumstances have occurred that indicate the carrying amount of property and equipment and finite-life intangible assets may not be recoverable. When factors indicate that these long-lived assets should be evaluated for possible impairment, we assess the potential impairment by determining whether the carrying amount of such long-lived assets will be recovered through the future undiscounted cash flows expected from use of the asset and its eventual disposition. If the carrying amount of the asset is determined not to be recoverable, a write-down to fair value is recorded. Fair values are determined based on quoted market prices or discounted cash flow analysis as applicable. We regularly evaluate whether events and circumstances have occurred that indicate the useful lives of property and equipment and finite-life intangible assets may warrant revision. Accrued buyout liability — Certain of our salespersons are paid residual commissions based on the profitability generated by certain merchants. We have the right, but not the obligation, to buy out some or all of these commissions and intend to do so periodically. Such purchases of the commissions are at a fixed multiple of the last 12 months' commissions. Because of our intent and ability to execute purchases of the residual commissions, and the mu |