UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM10-Q

(Mark One)

For the quarterly period ended March 31,September 30, 2018

or

For the transition period from

Commission File Number0-25346

ACI WORLDWIDE, INC.

(Exact name of registrant as specified in its charter)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒    No  ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of the RegulationS-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).     Yes  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, anon-accelerated filer, smaller reporting company, or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” inRule 12b-2 of the Exchange Act. (Check one):

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.   ☐

Indicate by check mark whether the registrant is a shell company (as defined inRule 12b-2 of the Exchange Act).    Yes  ☐    No  ☒

As of May 4,November 5, 2018, there were 116,425,416115,979,645 shares of the registrant’s common stock outstanding.

TABLE OF CONTENTS

ACI WORLDWIDE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(unaudited and in thousands, except share and per share amounts)

The accompanying notes are an integral part of the condensed consolidated financial statements.

ACI WORLDWIDE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(unaudited and in thousands, except per share amounts)

The accompanying notes are an integral part of the condensed consolidated financial statements.

ACI WORLDWIDE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(unaudited and in thousands)

The accompanying notes are an integral part of the condensed consolidated financial statements.

ACI WORLDWIDE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited and in thousands)

The accompanying notes are an integral part of the condensed consolidated financial statements.

ACI WORLDWIDE, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

1. Condensed Consolidated Financial Statements

The unaudited condensed consolidated financial statements include the accounts of ACI Worldwide, Inc. and itswholly-owned subsidiaries (collectively, the “Company”). All intercompany balances and transactions have been eliminated. The condensed consolidated financial statements as of March 31,September 30, 2018, and for the three and nine months ended March 31,September 30, 2018 and 2017, are unaudited and reflect all adjustments of a normal recurring nature, which are, in the opinion of management, necessary for a fair presentation, in all material respects, of the financial position and operating results for the interim periods. The condensed consolidated balance sheet as of December 31, 2017 is derived from the audited financial statements.

The condensed consolidated financial statements contained herein should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s annual report on Form10-K for the fiscal year ended December 31, 2017, filed on February 27, 2018. Results for the three and nine months ended March 31,September 30, 2018 are not necessarily indicative of results that may be attained in the future.

The preparation of condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States (“U.S. GAAP”) requires management to make judgments, estimates, and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Other Current Assets and Other Current Liabilities

Individuals and businesses settle their obligations to the Company’s various clients, primarily utility and other public sector clients, using credit or debit cards or via ACH payments. The Company creates a receivable for the amount due from the credit or debit card company and an offsetting payable to the client. Upon confirmation that the funds have been received, the Company settles the obligation to the client. Due to timing, in some instances, the Company may receive the funds into bank accounts controlled by and in the Company’s name that are not disbursed to its clients by the end of the day resulting in a settlement deposit on the Company’s books.

Off Balance Sheet Accounts

The Company also enters into agreements with certain clients to process payment funds on their behalf. When an ACH or automated teller machine network payment transaction is processed, a transaction is initiated to withdraw funds from the designated source account and deposit them into a settlement account, which is a trust account maintained for the benefit of the Company’s clients. A simultaneous transaction is initiated to transfer funds from the settlement account to the intended

destination account. These “back to back” transactions are designed to settle at the same time, usually overnight, such that the Company receives the funds from the source at the same time as it sends the funds to their destination. However, due to the transactions being with various financial institutions there may be timing differences that result in float balances. These funds are maintained in accounts for the benefit of the client which is separate from the Company’s corporate assets. As the Company does not take ownership of the funds, the settlement accounts are not included in the

Company’s balance sheet. The Company is entitled to interest earned on the fund balances. The collection of interest on these settlement accounts is considered in the Company’s determination of its fee structure for clients and represents a portion of the payment for services performed by the Company. The amount of settlement funds as of March 31,September 30, 2018 and December 31, 2017 were $216.1$185.4 million and $238.9 million, respectively.

Fair Value

The fair value of the Company’s Credit Agreement approximates the carrying value due to the floating interest rate (Level 2 of the fair value hierarchy). The Company measures the fair value of its Senior Notes based on Level 2 inputs, which include quoted market prices and interest rate spreads of similar securities. The fair value of the Company’s 2026 Senior Notes was $303.3$407.1 million andat September 30, 2018. The fair value of the Company’s 2020 Senior Notes was $305.7 million at March 31, 2018 and December 31, 2017, respectively.2017.

The fair values of cash and cash equivalents approximate the carrying values due to the short period of time to maturity (Level 2 of the fair value hierarchy).

Goodwill

In accordance with ASC 350,Intangibles – Goodwill and Other, the Company assesses goodwill for impairment annually during the fourth quarter of its fiscal year using October 1 balances or when there is evidence that events or changes in circumstances indicate that the carrying amount of the asset may not be recovered. The Company evaluates goodwill at the reporting unit level and has identified its operating segments, ACI On Demand and ACI On Premise, as its reporting units. The Company allocated goodwill to the reporting units using a relative fair value approach with total goodwill of $909.7 million of which weit allocated $725.9 million and $183.8 million to ACI On Premise and ACI On Demand, respectively.

Recoverability of goodwill is measured using a discounted cash flow model incorporating discount rates commensurate with the risks involved. Use of a discounted cash flow model is common practice in impairment testing in the absence of available transactional market evidence to determine the fair value. The calculated fair value was substantially in excess of the current carrying value for all reporting units based upon ourthe October 1, 2017 annual impairment test and there have been no indications of impairment in the subsequent periods.

New Accounting Standards Recently Adopted

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”)2014-09,Revenue from Contracts with Customers (codified as “ASC 606”) as well as other clarifications and technical guidance related to this new revenue standard, including ASC340-40,Other Assets and Deferred Costs – Contracts with Customers (“ASC340-40)340-40”). ASC 606 superseded the revenue recognition requirements in ASC 605, Revenue Recognition, and most industry-specific guidance. The Company adopted ASC 606 and ASC340-40 on January 1, 2018 (the effective date) using the modified retrospective transition method which required an adjustment to retained earnings for the cumulative effect of applying ASC 606 to active contracts as of the adoption date. For active contracts that were modified before the effective date, the Company reflected the aggregate effect of all modifications when identifying performance obligations and allocating the transaction price in accordance with the practical expedient permitted under ASC 606. The cumulative effect of applying ASC 606 to active contracts as of the adoption date was an increase to retained earnings of $244.0 million.

In August 2016, the FASB issued ASU2016-15,Statement of Cash Flows – Classification of Certain Cash Receipts and Cash Payments, an update that addresses how certain cash receipts and cash payments are presented and classified in the statement of cash flows. Among the cash flow matters addressed in the update are payments for costs related to debt prepayments or extinguishments, payments related to settlement of certain types of debt instruments, payments of contingent consideration made after a business combination, proceeds from insurance claims and corporate-owned life insurance policies, and distributions received from equity method investees, among others. The amendments are applied using a retrospective transition method to each period presented, unless impracticable for specific cash flow matters, in which case the amendments would be applied prospectively as of the earliest date practicable. The Company adopted ASU2016-15 as of January 1, 2018. The adoption of ASU2016-15 was not material to the condensed consolidated statement of cash flows.

In October 2016, the FASB issued ASU2016-16,Intra-Entity Transfers of Assets Other than Inventory, to simplify the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. Previously, U.S. GAAP prohibited the recognition of current and deferred income taxes for an intra-entity asset transfer until the asset has been sold to an

outside party. This prohibition on recognition was an exception to the principle of comprehensive recognition of current and deferred income taxes in U.S. GAAP. The limited amount of authoritative guidance about the exception led to diversity in practice and is a source of complexity in financial reporting, particularly for an intra-entity transfer of intellectual property. Under the amendments of ASU2016-16, an entity should recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. Consequently, this amendment eliminates the exception for an intra-entity transfer of an asset other than inventory. The amendments to this ASU should be applied on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. The Company adopted ASU2016-152016-16 as of January 1, 2018. The adoption of ASU2016-152016-16 had no impact on the condensed consolidated balance sheet, results of operations, or statement of cash flows.

In August 2018, the FASB issued ASU2018-05,Intangibles—Goodwill andOther–Internal-Use Software: Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement (“ASU2018-05”). The purpose of the update was to reduce potential diversity in practice and provide specific guidance on how to account for implementation costs incurred in a cloud computing arrangement. ASU2018-05 applies the same guidance in ASC350-40,Intangibles – Goodwill and Other —Internal-Use Software (“ASC350-40”), to determine implementation costs to capitalize versus costs that are to be expensed as incurred. This ASU will be effective for fiscal years beginning after December 15, 2019, with early adoption permitted. The Company has elected to early adopt ASU2018-05 during the period ended September 30, 2018. The adoption had no impact on the condensed consolidated balance sheet, results of operations, or statement of cash flows.

Recently Issued Accounting Standards Not Yet Effective

In February 2016, the FASB issuedASU 2016-02, Leases(codified (codified as “ASC 842”). ASC 842 requires a lessee to record on the balance sheet the assets and liabilities for the rights and obligations created by leases with lease terms of more than 12 months. In addition, this standard requires both lessees and lessors to disclose certain key information about lease transactions. This standard will be effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years.years; early adoption is permitted and modified retrospective application is currently required with optional practical expedients. The Company will adopt ASC 842 as of the effective date and is currently assessingevaluating the impactuse of the optional practical expedients.

The Company has established a cross-functional project team to assess implementing changes to its systems, processes, and controls, in conjunction with a comprehensive review of existing lease agreements. The Company expects the adoption of ASC 842 will have a material impact on its condensed consolidated balance sheet as its rights and obligations from its existing operating leases will be recognized on the balance sheet as assets and liabilities. As of September 30, 2018, the Company’s undiscounted minimum commitments under noncancelable operating leases was approximately $79.4 million. The Company does not expect the adoption of ASC 842 to have a material impact on its results of operations andor statement of cash flow.flows.

In February 2018, the FASB issued ASU2018-02,Income Statement-Reporting Comprehensive Income: Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. This ASU 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 2017 U.S. Tax Cuts and JobJobs Act (or portion thereof) is recorded. This ASU requires disclosure of a description of the accounting policy for releasing income tax effects from AOCI; whether election is made to reclassify the stranded income tax effects from the 2017 U.S. Tax Cuts and JobJobs Act; and information about the income tax effects that are reclassified. This ASU is effective for annual and interim periods beginning after December 15, 2018. The Company is currently assessing the impact the adoptionof ASU 2018-02 will have on its condensed consolidationconsolidated balance sheet, results of operations, and statement of cash flow.flows.

2. Revenue

Revenue Recognition

In accordance with ASC 606 revenue is recognized upon transfer of control of promised products and/or services to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products and services. Revenue is recognized net of any taxes collected from customers and subsequently remitted to governmental authorities.

Contract Combination.The Company may execute more than one contract or agreement with a single customer. The separate contracts or agreements may be viewed as one combined arrangement or separate agreements for revenue recognition purposes. In order to reach appropriate conclusions regarding whether such agreements should be combined, the Company evaluates whether the agreements were negotiated as a package with a single commercial objective, whether the amount of consideration to be paid in one agreement depends on the price and/or performance of another agreement, or whether the goodproduct(s) or services promised in the agreements represent a single performance obligation. The conclusions reached can impact the allocation of the transaction price to each performance obligation and the timing of revenue recognition related to those arrangements.

Software as a Service (“SaaS”) and Platform as a Service (“PaaS”) Arrangements. The Company’s SaaS-based and PaaS-based arrangements, including implementation, support and other services, represent a single promise to provide continuous access (i.e. a stand-ready performance obligation) to its software solutions and their processing capabilities in the form of a service through one of the Company’s data centers. As each day of providing access to the software solution(s) is substantially the same and the customer simultaneously receives and consumes the benefits as access is provided, the Company’s single promise under its SaaS-based and PaaS-based arrangements is comprised of a series of distinct service periods. The Company’s SaaS-based and PaaS-based arrangements may include fixed consideration, variable consideration, or a combination of the two. Fixed consideration is recognized over the term of the arrangement or longer if the fixed consideration relates to a material right.    A material right would be a separate performance obligation. The Company estimates the standalone selling price for a material right by reference to the services expected to be provided and the corresponding expected consideration. Variable consideration in these arrangements is typically a function of transaction volume or

another usage-based measure. Depending upon the structure of a particular arrangement, the Company: (1) allocates the variable amount to each distinct service period within the series and recognizes revenue as each distinct service period is performed (i.e. direct allocation), (2) estimates total variable consideration at contract inception (giving consideration to any constraints that may apply and updating the estimates as new information becomes available) and recognizes the total transaction price over the period to which it relates, or (3) applies the ‘right to invoice’ practical expedient and recognizes revenue based on the amount invoiced to the customer during the period.

License Arrangements. The Company’s software license arrangements provide the customer with the right to 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. Implementation, support, and other services are typically considered distinct performance obligations when sold with a software license unless these services are determined to significantly modify the software.

Payment terms for the Company’s software license arrangements generally include fixed license and capacity fees that are payable up front or over time. These arrangements may also include incremental usage-based fees that are payable when the customer exceeds its contracted license capacity limits. The Company accounts for capacity overages as a usage-based royalty that is recognized when the usage occurs.

When a software license arrangement contains payment terms that are extended beyond one year, a significant financing component may exist. The significant financing component is calculated as the difference between the stated value and present value of the software license fees and is recognized as interest income over the extended payment period. The total fixed software license fee net of the significant financing component is recognized as revenue at the point in time when the software is transferred to the customer.

For those software license arrangements that include customer-specific acceptance provisions, such provisions are generally presumed to be substantive and the Company does not recognize revenue until the earlier of the receipt of a written customer acceptance, objective demonstration that the delivered product meets the customer-specific acceptance criteria, or the expiration of the acceptance period. The Company recognizes revenues on such arrangements upon the earlier of receipt of written acceptance or the first production use of the software by the customer.

For software license arrangements in which the Company acts as a distributor of another company’s product, and in certain circumstances, modifies or enhances the product, revenues are recorded on a gross basis. These include arrangements in which the Company takes control of the products and is responsible for providing the product or service. For software license arrangements in which the Company acts as a sales agent for another company’s product, revenues are recorded on a net basis. These include arrangements in which the Company does not take control of products and is not responsible for providing the product or service.

For software license arrangements in which the Company utilizes a third-party distributor or sales agent, the Company recognizes revenue upon transfer of control of the software license(s) to the third-party distributor or sales agent.

The Company’s software license arrangements typically provide the customer with a standard90-day assurance-type warranty. These warranties do not represent an additional performance obligation as services beyond assuring that the software license complies with agreed-upon specifications are not provided.

Software license arrangements typically include an initial post contract customer support (maintenance or “PCS”) term of one year with subsequent renewals for additional years within the initial license period. The Company’s promise to those customers who elect to purchase PCS represents a stand-ready performance obligation that is distinct from the license performance obligation and recognized over the PCS term.

The Company also provides various professional services to customers with software licenses. These include project management, software implementation, and software modification services. Revenues from arrangements to provide professional services are generally distinct from the other promises in the contract(s) and are recognized as the related services are performed. Consideration payable under these arrangements is either fixed fee or on atime-and-materials basis, which represents variable consideration that must be estimated using the most likely amount based on the range of hours expected to be incurred in providing the services.

The Company estimates the standalone selling price (“SSP”) for maintenance and professional services based on observable standalone sales. The Company applies the residual approach to estimate the SSP for software licenses.

Refer to Note 10,Segment Information, for further details, including disaggregation of revenue based on primary solution category and geographic location.

Significant Judgments

The Company applies judgment in determining the customer’s ability and intention to pay, which is based on a variety of factors including the customer’s historical payment experience or, in the case of a new customer, published credit and financial information.

The Company also applies judgment in determining the term of an arrangement when early termination rights are provided to the customer.

The Company’s software license arrangements with its customers often include multiple promises to transfer licensed software products and services. Determining whether the products and/or services are distinct performance obligations that should be accounted for separately may require significant judgment.

The Company’s SaaS and PaaS arrangements may include variable consideration in the form of usage-based fees. If the arrangement that includes variable consideration in the form of usage-based fees does not meet the allocation exception for variable consideration, the Company estimates the amount of variable consideration at the outset of the arrangement using either the expected value or most likely amount method, depending on the specifics of each arrangement. These estimates are constrained to the extent that it is probable that a significant reversal of incremental revenue will not occur and are updated each reporting period as additional information becomes available.

Judgment is used in determining: (1) whether the financing component in a software license agreement is significant and, if so, (2) the discount rate used in calculating the significant financing component. The Company assesses the significance of the financing component based on the ratio of license fees paid over time to total license fees. If determined to be significant, the financing component is calculated using a rate that discounts the license fees to the cash selling price.

Judgment is also used in assessing whether the extension of payment terms in a software license arrangement results in variable consideration and, if so, the amount to be included in the transaction price. The Company applies the portfolio approach to estimating the amount of variable consideration in these arrangements using the most likely amount method that is based on the Company’s historical collection experience under similar arrangements.

Significant judgment is required to determine the SSP for each performance obligation, the amount allocated to each performance obligation and whether it depicts the amount that the Company expects to receive in exchange for the related product and/or service. As the selling prices of the Company’s software licenses are highly variable, the Company estimates SSP of its software licenses using the residual approach when the software license is sold with other services and observable SSPs exist for the other services. The Company uses a range of amounts to estimate SSP for maintenance and services. These ranges are based on standalone sales and vary based on the type of service and geographic region. If the SSP of a performance obligation is not directly observable, the Company will maximize observable inputs to determine its SSP.

Contract Balances

Timing of revenue recognition may differ from the timing of invoicing to customers. The Company records an accrued receivable when revenue is recognized prior to invoicing and the Company’s right to consideration only requires the passage of time, or deferred revenue when revenue is recognized subsequent to invoicing.

Total receivables represent amounts billed and amounts earned that are to be billed in the future (i.e., accrued receivables). Included in accrued receivables are services and SaaS and PaaS revenues earned in the current period but billed in the following period and amounts due under multi-year software license arrangements with extended payment terms for which the Company has an unconditional right to invoice and receive payment in the future.

No customer accounted for more than 10% of the Company’s consolidated receivables balance as of March 31,September 30, 2018 or December 31, 2017.

Deferred revenue includes amounts due or received from customers for software licenses, maintenance, services, and/or SaaS and PaaS services in advance of recording the related revenue.

Changes in deferred revenue were as follows:

Revenue allocated to remaining performance obligations represents contracted revenue that will be recognized in future periods, which is comprised of deferred revenue and amounts that will be invoiced and recognized as revenue in future periods. This does not include:

Revenue allocated to remaining performance obligations was $589.5$599.9 million as of March 31,September 30, 2018, of which the Company expects to recognize approximately 50%48% over the next 12 months and the remainder thereafter.

During the three-monthsthree and nine-month periods ended March 31,September 30, 2018, the revenue recognized by the Company from performance obligations satisfied in previous periods was not material.

Costs to Obtain and Fulfill a Contract

The Company accounts for costs to obtain and fulfill its contracts in accordance with ASC 340,Other Assets and Deferred Costs.

The Company capitalizes certain of its sales commissions that meet the definition of incremental costs of obtaining a contract and for which the amortization period is greater than one year. The costs associated with those sales commissions is capitalized during the period in which the Company becomes obligated to pay the commissions and is amortized over the period in which the related products or services are transferred to the customer. As of March 31,September 30, 2018, $0.4$0.6 million and $19.1$15.4 million of these costs are included in other current and othernon-current assets, respectively, on the condensed consolidated balance sheets. During the three and nine months ended March 31,September 30, 2018, the Company recognized $2.3$2.1 million and $6.4 million, respectively, of sales commission expense related to the amortization of these costs, which is included in selling and marketing expense.

The Company capitalizes costs incurred to fulfill its contracts that: (1) relate directly to the arrangement, (2) are expected to generate resources that will be used to satisfy the Company’s performance obligation under the arrangement, and (3) are expected to be recovered through revenue generated under the arrangement. Contract fulfillment costs are expensed as the Company transfers the related services to the customer. As of March 31,September 30, 2018, $0.2$0.1 million and $12.0$12.6 million of these costs are included in other current and othernon-current assets, respectively, on the condensed consolidated balance sheets. The amounts capitalized primarily relate to direct costs that enhance resources under the Company’s SaaS and PaaS arrangements. During the three and nine months ended March 31,September 30, 2018, the Company recognized $1.2$1.1 million and $3.5 million, respectively, of expense related to the amortization of these costs, which is included in cost of revenue.

Financial Statement Effect of Applying ASC 606

As the modified retrospective transition method does not result in recast of the prior year financial statements, ASC 606 requires the Company to provide additional disclosures for the amount by which each financial statement line item is affected by adoption of the standard and explanation of the reasons for significant changes.

The financial statement line items affected by adoption of ASC 606 isare as follows:

The following summarizes the significant changes resulting from the adoption of ASC 606 compared to if the Company had continued to recognize revenues under ASC985-605,Revenue Recognition: Software(ASC 605).

Receivables, Deferred Revenue, License Revenue, and Interest Income

The change in receivables, deferred revenue, license revenue, and interest income is due to a change in the timing and the amount of recognition for software license revenues under ASC 606.

Under ASC 605, the Company recognizesrecognized revenue upon delivery provided (i) there is persuasive evidence of an arrangement, (ii) collection of the fee is considered probable, and (iii) the fee is fixed or determinable. For software license arrangements in which a significant portion of the fee is due more than 12 months after delivery or when payment terms are significantly beyond the Company’s standard business practice, the license fee is deemed not fixed or determinable. For software license arrangements in which the fee is not considered fixed or determinable, the license is recognized as revenue as payments become due and payable, provided all other conditions for revenue recognition have been met.

License revenue under ASC 605 includes revenue from software license arrangements with extended payment terms for which the due and payable pattern of recognition was applied.applied and revenue from renewals of software license arrangements in the period during which the renewal is signed. Under ASC 606, license revenue from these software license arrangements with extended payment terms is accelerated (i.e. upfront recognition) and adjusted for the effects of the financing component, if significant. The significant financing component in these software license arrangements is recognized as interest income over the extended payment period. As many of these software license arrangements were active as of the date the Company adopted ASC 606, the license fees are included in the Company’s cumulative adjustment to retained earnings. Revenue for license renewals is recognized when the customer can begin to use and benefit from the license, which is generally at the commencement of the license renewal period.

Other Current Assets, Other Noncurrent Assets, and Selling and Marketing

Under ASC 606, certain of the Company’s sales commissions meet the definition of incremental costs of obtaining a contract. Accordingly, these costs are capitalized and the expense is recognized as the related goods or services are transferred to the customer. Prior to the adoption of ASC 606, the Company recognized sales commission expenses as they were incurred.

Deferred Income Taxes, Net

The change in deferred income taxes is primarily due to the deferred tax effects resulting from the adjustment to retained earnings for the cumulative effect of applying ASC 606 to active contracts as of the adoption date.

The adoption of ASC 606 had no impact in total on the Company’s cash flows from operations.

3. Debt

As of March 31,September 30, 2018, the Company had $389.1$288.9 million and $300.0$400.0 million outstanding under its Term Credit Facility and Senior Notes, respectively, with up to $500.0 million of unused borrowings under the Revolving Credit Facility portion of the Credit Agreement, as amended.

Credit Agreement

On February 24, 2017, the Company entered into an amended and restated credit agreement (the “Credit Agreement”), replacing the existing agreement, with a syndicate of financial institutions, as lenders, and Bank of America, N.A. (“BofA”), as Administrative Agent, providing for revolving loans, swingline loans, letters of credit, and a term loan. The Credit Agreement consists of a five-year $500.0 million senior secured revolving credit facility (the “Revolving Credit Facility”), which includes a sublimit for the issuance of standby letters of credit and a sublimit for swingline loans, and $415.0 million under the five-year senior secured term loan facility (the “Term Credit Facility” and, together with the Revolving Credit Facility, the “Credit Facility”). The Credit Agreement also allows the Company to request optional incremental term loans and increases in the revolving commitment.

The loans under the Credit Facility may be made to, and the letters of credit under the Revolving Credit Facility may be issued on behalf of the Company. On February 24, 2017, the Company borrowed an aggregate principal amount of $12.0 million under the Revolving Credit Facility and borrowed $415.0 million under the Term Credit Facility.

Borrowings under the Credit Facility bear interest at a rate per annum equal to, at the Company’s option, either (a) a base rate determined by reference to the highest of (1) the rate of interest per annum publicly announced by the Administrative Agent as its Prime Rate, (2) the federal funds effective rate plus 1/2 of 1%, and (3) a LIBOR rate determined by reference to the costs of funds for U.S. dollar deposits for aone-month interest period adjusted for certain additional costs plus 1% or (b) a LIBOR rate determined by reference to the costs of funds for U.S. dollar deposits for the interest period relevant to such borrowing adjusted for certain additional costs, in each case plus an applicable margin. The applicable margin for borrowings under the Credit Facility is, based on the calculation of the applicable consolidated total leverage ratio, between 0.25% to 1.25% with respect to base rate borrowings and between 1.25% and 2.25% with respect to LIBOR rate borrowings. Interest is due and payable monthly. The interest rate in effect at March 31,September 30, 2018, for the Credit Facility was 3.63%3.99%.

In addition to paying interest on the outstanding principal under the Credit Facility, the Company is required to pay a commitment fee in respect of the unutilized commitments under the Revolving Credit Facility, payable quarterly in arrears. The Company is also required to pay letter of credit fees on the maximum amount available to be drawn under all outstanding letters of credit in an amount equal to the applicable margin on LIBOR rate borrowings under the Revolving Credit Facility on a per annum basis, payable quarterly in arrears, as well as customary fronting fees for the issuance of letters of credit fees and agency fees.

The Company’s obligations under the Credit Facility and cash management arrangements entered into with lenders under the Credit Facility (or affiliates thereof) and the obligations of the subsidiary guarantors are secured by first-priority security interests in substantially all assets of the Company and any guarantor, including 100% of the capital stock of ACI Worldwide Corp. and each domestic subsidiary of the Company, each domestic subsidiary of any guarantor, and 65% of the voting capital stock of each foreign subsidiary of the Company that is directly owned by the Company or a guarantor, in each case subject to certain exclusions set forth in the credit documentation governing the Credit Facility.

The Credit Agreement contains a number of covenants that, among other things and subject to certain exceptions, restrict the Company’s ability and, as applicable, the ability of its subsidiaries to: create, incur, assume or suffer to exist any additional indebtedness; create, incur, assume or suffer to exist any liens; enter into agreements and other arrangements that include negative pledge clauses; pay dividends on capital stock or redeem, repurchase or retire capital stock or subordinated indebtedness; create restrictions on the payment of dividends or other distributions by subsidiaries; make investments, loans, advances and acquisitions; merge, consolidate or enter into any similar combination or sell assets, including equity interests of the subsidiaries; enter into sale and leaseback transactions; directly or indirectly engage in transactions with affiliates; alter in any material respect the character or conduct of the business; enter into amendments of or waivers under subordinated indebtedness, organizational documents and certain other material agreements; and hold certain assets and incur certain liabilities.

The Credit Agreement also contains certain customary affirmative covenants and events of default. If an event of default, as specified in the Credit Agreement, shall occur and be continuing, the Company may be required to repay all amounts outstanding under the Credit Facility.

Senior Notes

On August 20, 2013,21, 2018, the Company completed a $300.0$400.0 million offering of 5.750% Senior Notes due 2026 (the “2026 Notes”) at an issue price of 100% of the principal amount, in a private placement for resale to qualified institutional buyers. The Senior2026 Notes bear an interest at a rate of 6.375%5.750% per annum,year, payable semi-annually in arrears on AugustFebruary 15 and FebruaryAugust 15 of each year, commencing on February 15, 2014. 2019.

Interest began accruingwill accrue from August 21, 2018. The 2026 Notes will mature on August 20, 2013.15, 2026. In connection with the issuance of the 2026 Notes, the Company incurred and paid debt issuance costs of $7.3 million as of September 30, 2018.

The Company used the net proceeds of the offering described above to redeem in full the Company’s outstanding 6.375% Senior Notes due 2020 (the “2020 Notes”), including accrued interest, and repaid a portion of the outstanding amount under the Term Credit Facility.

Maturities on long-term debt outstanding at March 31,September 30, 2018 are as follows:

The Credit Agreement and Senior2026 Notes also contain certain customary mandatory prepayment provisions. If certain events, as specified in the Credit Agreement or Senior2026 Notes agreement, shall occur, the Company may be required to repay all or a portion of the amounts outstanding under the Credit Facility or Senior2026 Notes.

The Credit Facility will mature on February 24, 2022 and the Senior2026 Notes will mature on August 15, 2020.2026. The Revolving Credit Facility and Senior2026 Notes do not amortize and the Term Credit Facility does amortize, with principal payable in consecutive quarterly installments.

The Credit Agreement and Senior2026 Notes contain certain customary affirmative covenants and negative covenants that limit or restrict, subject to certain exceptions, the incurrence of liens, indebtedness of subsidiaries, mergers, advances, investments, acquisitions, transactions with affiliates, change in nature of business and the sale of the assets. The Company is also required to maintain a consolidated leverage ratio at or below a specified amount and an interest coverage ratio at or above a specified amount. If an event of default, as specified in the Credit Agreement and Senior2026 Notes agreement, shall occur and be continuing, the Company may be required to repay all amounts outstanding under the Credit Facility and Senior2026 Notes. As of March 31,September 30, 2018, and at all times during the period, the Company was in compliance with its financial debt covenants.

Other

(in thousands)		As of March 31, 2018				As of December 31, 2017
Term credit facility		$	389,063			$	394,250
Revolving credit facility			—				2,000
6.375% Senior Notes, due August 2020			300,000				300,000
Debt issuance costs			(9,823	)			(10,521	)
Total debt			679,240				685,729
Less current portion of term credit facility			23,344				20,750
Less current portion of debt issuance costs			(2,965	)			(2,964	)
Total long-term debt		$	658,861			$	667,943

During the nine months ended September 30, 2018, the Company financed certain multi-year license agreements for internally-used software for $11.9 million with annual payments through June 2023. As of September 30, 2018, $11.6 million is outstanding, of which $4.7 million and $6.9 million is included in other current liabilities and other noncurrent liabilities, respectively, in the accompanying condensed consolidated balance sheet. The $11.6 million has been treated as anon-cash investing and financing activity for purposes of the condensed consolidated statement of cash flows.

4.Stock-Based Compensation Plans

Employee Stock Purchase Plan

On April 6, 2017, the Board of Directors approved the 2017 Employee Stock Purchase Plan (“2017 ESPP”), which was approved by shareholders at the 2017 Annual Shareholder meeting. The 2017 ESPP provides employees with an opportunity to purchase shares of common stock in the Company. The 1999 Employee Stock Purchase Plan terminated upon the August 1, 2017 effective date of the 2017 ESPP. Under the Company’s 2017 ESPP a total of 3,000,000 shares of the Company’s common stock have been reserved for issuance to eligible employees. Participating employees are permitted to designate up to the lesser of $25,000 or 10% of their annual base compensation, for the purchase of common stock under the ESPP. Purchases under the ESPP are made one calendar month after the end of each fiscal quarter. The price for shares of common stock purchased under the ESPP is 85% of the stock’s fair market value on the last business day of the three-month participation period. Shares issued under the ESPP during the three-monthsnine months ended March 31,September 30, 2018 and 2017, totaled 38,145112,549 and 44,685,121,765, respectively.

Stock-Based Payments

A summary of stock options issued pursuant to the Company’s stock incentive plans is as follows:

The weighted-average grant date fair value of stock options granted during the threenine months ended March 31,September 30, 2018 and 2017 was $7.03 and $6.24, respectively. The Company issued treasury shares for the exercise of stock options during the threenine months ended March 31,September 30, 2018 and 2017. The total intrinsic value of stock options exercised during the threenine months ended March 31,September 30, 2018 and 2017 was $7.2$13.6 million and $4.6$6.6 million, respectively.

The fair value of options that do not vest based on the achievement of certain market conditions granted during the threenine months ended March 31,September 30, 2018 and 2017 were estimated on the date of grant using theBlack-Scholesoption-pricing model, a pricing model acceptable under U.S. GAAP, with the following weighted-average assumptions:

Expected volatilities are based on the Company’s historical common stock volatility derived from historical stock price data for historical periods commensurate with the options’ expected life. The expected life is the average number of years that the Company estimated that the options will be outstanding, based primarily on historical employee option exercise behavior. The risk-free interest rate is based on the implied yield currently available on United States Treasury zero coupon issues with a term equal to the expected term at the date of grant of the options. The expected dividend yield is zero as the Company has historically not paid no dividends and does not anticipate dividends to be paid in the future.

Long-term Incentive Program Performance Share Awards

A summary of nonvested long-term incentive program performance share awards (“LTIP performance shares”) outstanding as of March 31,September 30, 2018, and changes during the period are as follows:

Restricted Share Awards

A summary of nonvested restricted share awards (“RSAs”) as of March 31,September 30, 2018, and changes during the period are as follows:

During the three-monthsnine months ended March 31,September 30, 2018, the Company had 123,427a total of 231,473 RSA shares vested. The Company withheld 40,33541,973 of those shares to pay the employees’ portion of the minimum payroll withholding taxes.

Performance-Based Restricted Share Awards

A summary of nonvested Performance-Based Restricted Share Awards (“PBRSAs”) as of March 31,September 30, 2018, and changes during the period are as follows:

During the nine months ended September 30, 2018, a total of 173,636 PBRSA shares vested. The Company withheld 64,699 of those shares to pay the employees’ portion of the minimum payroll withholding taxes.

Total Shareholder Return Awards

During the three-monthsnine months ended March 31,September 30, 2018 and 2017, the Company granted total shareholder return (“TSR”) awards, pursuant to the 2016 Equity and Performance Incentive Plan. TSRs are performance shares that are earned, if at all, based upon the Company’s total shareholder return as compared to a group of peer companies over a three-year performance period. The award payout can range from 0% to 200%. In order to determine the grant date fair value of the TSRs, a Monte Carlo simulation model is used. The Company recognizes compensation expense for TSRs over a three-year performance period based on the grant date fair value.

The grant date fair value of the TSRs was estimated using the following weighted-average assumptions:

A summary of nonvested TSRs outstanding as of March 31,September 30, 2018, and changes during the period are as follows:

Restricted Share Units

During the threenine months ended March 31,September 30, 2018, the Company granted restricted share units (“RSUs”) awards, pursuant to the 2016 Equity and Performance Incentive Plan. The awards generally have requisite service periods of three years and vest in increments of 33% on the anniversary of the grant dates. Under each arrangement, stock is issued without direct cost to the employee on the vesting date. The Company estimates the fair value of the RSUs based upon the market price of the Company’s stock at the date of grant. The Company recognizes compensation expense for RSUs on a straight-line basis over the requisite service period.

A summary of nonvested RSUs as of March 31,September 30, 2018, and changes during the period are as follows:

During the nine months ended September 30, 2018, a total of 10,000 RSU shares vested.

As of March 31,September 30, 2018, there were unrecognized compensation costs of $18.5$14.3 million related to the TSRs, $13.1$12.6 million related to RSUs, $9.8$5.8 million related to the LTIP performance shares, $7.6$3.7 million related to nonvested stock options, $5.5and $3.2 million related to the nonvested RSAs, and $0.3 million related to nonvested PBRSAs, which the Company expects to recognize over weighted-average periods of 2.82.3 years, 2.92.3 years, 1.71.3 years, 1.2 years, 1.80.9 years, and 0.21.4 years, respectively.

The Company recorded stock-based compensation expenses recognized under ASC 718,Compensation – Stock Compensation, for the three months ended March 31,September 30, 2018 and 2017, related to stock options, LTIP performance shares, RSAs, PBRSAs, TSR shares, RSUs, and the ESPP of $6.4$6.5 million and $6.3$8.1 million, respectively, with corresponding tax benefits of $1.0$1.5 million and $2.2$2.7 million, respectively. The Company recognizesrecorded stock-based compensation, costs for stock option awards that vestthe nine months ended September 30, 2018 and 2017, of $20.6 million and $22.7 million, respectively, with the passagecorresponding tax benefits of time with only service conditions on a straight-line basis over the requisite service period. The Company recognizes compensation costs for stock option awards that vest with service$3.6 million and market-based conditions on a straight-line basis over the longer of the requisite service period or the estimated period to meet the defined market-based condition.$7.7 million, respectively.

5. Software and Other Intangible Assets

At March 31,September 30, 2018, software net book value totaling $150.7$147.3 million, net of $236.8$250.0 million of accumulated amortization, includes the net book value of software marketed for external sale of $37.9$30.9 million. The remaining software net book value of $112.8$116.4 million is comprised of various software that has been acquired or developed for internal use.

At December 31, 2017, software net book value totaled $155.4 million, net of $230.7 million of accumulated amortization. Included in this amount is software marketed for external sale of $40.9 million. The remaining software net book value of $114.5 million is comprised of various software that has been acquired or developed for internal use.

Quarterly amortization of software marketed for external sale is computed using the greater of the ratio of current revenues to total estimated revenues expected to be derived from the software or the straight-line method over an estimated useful life of three to ten years. Software for resale amortization expense recorded in the three months ended March 31,September 30, 2018 and 2017, totaled $3.6$2.6 million and $3.3$3.1 million, respectively. Software for resale amortization expense recorded in the nine months ended September 30, 2018 and 2017, totaled $9.6 million. These software amortization expense amounts are reflected in cost of revenue in the condensed consolidated statements of operations.

Quarterly amortization of software for internal use is computed using the straight-line method over an estimated useful life of three to ten years. Software for internal use includes software acquired through acquisitions that is used to provide certain of our SaaS and PaaS offerings. Amortization of software for internal use of $10.5 million and $11.3 million forin the three months ended March 31,September 30, 2018 and 2017, respectively, istotaled $10.2 million and $11.5 million, respectively. Amortization of software for internal use in the nine months ended September 30, 2018 and 2017, totaled $31.0 million and $34.1 million, respectively. These software amortization expense amounts are included in depreciation and amortization in the condensed consolidated statements of operations.

The carrying amount and accumulated amortization of the Company’s other intangible assets that were subject to amortization at each balance sheet date are as follows:

(in thousands)		September 30, 2018												December 31, 2017
		Gross Carrying Amount				Accumulated Amortization				Net Balance				Gross Carrying Amount				Accumulated Amortization				Net Balance
Customer relationships		$	300,782			$	(128,367	)		$	172,415			$	305,218			$	(116,677	)		$	188,541
Trademarks and tradenames			16,450				(14,808	)			1,642				16,646				(13,906	)			2,740
		$	317,232			$	(143,175	)		$	174,057			$	321,864			$	(130,583	)		$	191,281