10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10–K

(Mark One)

þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31,2018

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from   to .

Commission file number 001–32426

WEX INC.

(Exact name of registrant as specified in its charter)

Delaware	01–0526993
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
1 Hancock Street Portland, Maine	04101
(Address of principal executive offices)	(Zip Code)

(207) 773-8171

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Name of each exchange on which registered
Common Stock, $0.01 par value	New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act:

None

(Title of class)

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

þ  Yes             ¨  No

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.

¨  Yes             þ  No

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.

þ  Yes            ¨  No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S–T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

þ  Yes             ¨  No

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S–K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10–K or any amendment to this Form 10–K.                                                                                                                                                                                                                                    ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b–2 of the Exchange Act.

Large accelerated filer  þ	Accelerated filer  ¨
Non-accelerated filer  ¨	Smaller reporting company  ¨
	Emerging growth company  ¨

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 in Rule 12b–2 of the Act).

¨  Yes             þ  No

The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant (assuming for the purpose of this calculation, but without conceding, that all directors, officers and any 10 percent or greater stockholders are affiliates of the registrant) as of June 29, 2018, the last business day of the registrant’s most recently completed second fiscal quarter, was $8,124,602,298 (based on the closing price of the registrant’s common stock on that date as reported on the New York Stock Exchange).

There were 43,135,385 shares of the registrant’s common stock outstanding as of March 12, 2019.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Company’s Proxy Statement for the 2019 Annual Meeting of Stockholders are incorporated by reference in Part III. With the exception of the sections of the 2019 Proxy Statement specifically incorporated herein by reference, the 2019 Proxy Statement is not deemed to be filed as part of the 10–K.

	TABLE OF CONTENTS
	Forward–Looking Statements	1
	ACRONYMS AND ABBREVIATIONS	2
Part I
Item 1.	Business	3
Item 1A.	Risk Factors	16
Item 1B.	Unresolved Staff Comments	31
Item 2.	Properties	32
Item 3.	Legal Proceedings	32
Item 4.	Mine Safety Disclosures	32
Part II
Item 5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	33
Item 6.	Selected Financial Data	34
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	35
Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	68
Item 8.	Financial Statements and Supplementary Data	69
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	124
Item 9A.	Controls and Procedures	124
Item 9B.	Other Information	128
Part III
Item 10.	Directors, Executive Officers and Corporate Governance	128
Item 11.	Executive Compensation	128
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	128
Item 13.	Certain Relationships and Related Transactions, and Director Independence	128
Item 14.	Principal Accounting Fees and Services	128
Part IV
Item 15.	Exhibits and Financial Statement Schedules	129
Item 16.	Form 10–K Summary	129
	Signatures	132

Unless otherwise indicated or required by the context, the terms “we,” “us,” “our,” “WEX,” or the “Company,” in this Annual Report on Form 10–K mean WEX Inc. and all of its subsidiaries that are consolidated under Generally Accepted Accounting Principles in the United States.

FORWARD–LOOKING STATEMENTS

The Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for statements that are forward-looking and are not statements of historical facts. This Annual Report includes forward-looking statements including, but not limited to, statements about management’s plan and goals, and the “Strategy” section of this Annual Report in Item 1. Any statements in this Annual Report that are not statements of historical facts are forward-looking statements. When used in this Annual Report, the words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “project” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain such words. Forward-looking statements relate to our future plans, objectives, expectations and intentions and are not historical facts and accordingly involve known and unknown risks and uncertainties and other factors that may cause the actual results or performance to be materially different from future results or performance expressed or implied by these forward-looking statements. The following factors, among others, could cause actual results to differ materially from those contained in forward-looking statements made in this Annual Report and in oral statements made by our authorized officers:

• the effects of general economic conditions on fueling patterns as well as payment and transaction processing activity;

• the impact of foreign currency exchange rates on the Company’s operations, revenue and income;

• changes in interest rates;

• the impact of fluctuations in fuel prices;

• the effects of the Company’s business expansion and acquisition efforts;

• potential adverse changes to business or employee relationships, including those resulting from the completion of an acquisition;

• competitive responses to any acquisitions;

• uncertainty of the expected financial performance of the combined operations following completion of an acquisition;

• the ability to successfully integrate the Company’s acquisitions;

• the ability to realize anticipated synergies and cost savings;

• unexpected costs, charges or expenses resulting from an acquisition;

• the Company’s failure to successfully acquire, integrate, operate and expand commercial fuel card programs;

• the failure of corporate investments to result in anticipated strategic value;

• the impact and size of credit losses;

• the impact of changes to the Company’s credit standards;

• breaches of the Company’s technology systems or those of our third-party service providers and any resulting negative impact on our reputation, liabilities or relationships with customers or merchants;

• the Company’s failure to maintain or renew key commercial agreements;

• failure to expand the Company’s technological capabilities and service offerings as rapidly as the Company’s competitors;

• failure to successfully implement the Company’s information technology strategies and capabilities in connection with its technology outsourcing and insourcing arrangements and any resulting cost associated with that failure;

• the actions of regulatory bodies, including banking and securities regulators, or possible changes in banking or financial regulations impacting the Company’s industrial bank, the Company as the corporate parent or other subsidiaries or affiliates;

• the impact of the material weaknesses disclosed in Item 9A of the Company's annual report on Form 10-K for the year ended December 31, 2018 and the effects of the Company's investigation and remediation efforts in connection with certain immaterial errors in the financial statements of our Brazilian subsidiary;

• the impact of the Company’s outstanding notes on its operations;

• the impact of increased leverage on the Company’s operations, results or borrowing capacity generally, and as a result of acquisitions specifically;

• the incurrence of impairment charges if our assessment of the fair value of certain of our reporting units changes;

• the uncertainties of litigation; as well as

• other risks and uncertainties identified in Item 1A of this Annual Report and in connection with such forward-looking statements.

Our forward-looking statements and these factors do not reflect the potential future impact of any alliance, merger, acquisition, disposition or stock repurchases. The forward-looking statements speak only as of the date of the initial filing of this Annual Report and undue reliance should not be placed on these statements. We disclaim any obligation to update any forward-looking statements as a result of new information, future events or otherwise.

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ACRONYMS AND ABBREVIATIONS

The acronyms and abbreviations identified below are used in this Annual Report including the accompanying consolidated financial statements and the notes thereto. The following is provided to aid the reader and provide a reference point when reviewing the Annual Report:

2013 Credit Agreement	Amended and restated credit agreement entered into on January 18, 2013 by and among the Company and certain of our subsidiaries, as borrowers, and WEX Card Holdings Australia Pty Ltd., as specified designated borrower, with a lending syndicate.
2014 Credit Agreement	Second amended and restated credit agreement entered into on August 22, 2014, by and among the Company and certain of its subsidiaries, as borrowers, WEX Card Holding Australia Pty Ltd., as designated borrower, and Bank of America, N.A., as administrative agent on behalf of consenting lenders.
2016 Credit Agreement	Credit agreement entered into on July 1, 2016 by and among the Company and certain of its subsidiaries, as borrowers, WEX Card Holding Australia Pty Ltd., as designated borrower, and Bank of America, N.A., as administrative agent on behalf of the lenders.
2017 Tax Act	2017 Tax Cuts and Jobs Act
Adjusted Net Income or ANI	A non-GAAP measure that adjusts net income attributable to shareholders to exclude unrealized gains and losses on financial instruments, net foreign currency remeasurement gains and losses, acquisition-related ticking fees, acquisition-related intangible amortization, other acquisition and divestiture related items, stock-based compensation, restructuring and other costs, impairment charges and asset write-offs, gain on divestiture, a one-time vendor settlement, debt restructuring and debt issuance cost amortization, non-cash adjustments related to tax receivable agreement, adjustments attributed to our non-controlling interest and certain tax related items.
AOC	AOC Solutions and one of its affiliate companies, 3Delta Systems, Inc.
ASC	Accounting Standards Codification
ASU 2014–09	Accounting Standards Update No. 2014–09 Revenue from Contracts with Customers (Topic 606)
ASU 2016–01	Accounting Standards Update No. 2016–01 Financial Instruments–Overall (Subtopic 825–10): Recognition and Measurement of Financial Assets and Financial Liabilities
ASU 2016–02	Accounting Standards Update No. 2016–02 Leases (Topic 842)
ASU 2016–09	Accounting Standards Update No. 2016–09 Compensation–Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting
ASU 2016–13	Accounting Standards Update No. 2016–13 Financial Instruments–Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments
ASU 2016–18	Accounting Standards Update No. 2016–18 Statement of Cash Flows (Topic 230): Restricted Cash
ASU 2017–04	Accounting Standards Update 2017–04–Intangibles–Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment
ASU 2017–07	Accounting Standards Update 2017–07 Compensation–Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost
ASU 2018–15	Accounting Standards Update No. 2018–15 Intangibles–Goodwill and Other–Internal-Use Software (Subtopic 350–40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract
Australian Securitization Subsidiary	Southern Cross WEX 2015-1 Trust, a special purpose entity consolidated by the Company
Average expenditure per payment processing transaction	Average total dollars of spend in a funded fuel transaction
Benaissance	Benaissance, a provider of integrated SaaS technologies and services for healthcare premium billing, payment and workflow management, acquired by the Company on November 18, 2015.
CDH	Consumer-directed healthcare
Company	WEX Inc. and all entities included in the consolidated financial statements
CFPB	Consumer Financial Protection Bureau
Discovery Benefits	Discovery Benefits, Inc.
EBITDA	A non-GAAP measure that adjusts income before income taxes to exclude interest, depreciation and amortization
EFS	Electronic Funds Source, LLC, a provider of customized corporate payment solutions for fleet and corporate customers with a focus on the large and mid-sized over-the-road fleets. On July 1, 2016, the Company acquired WP Mustang Topco LLC, the indirect parent of Electronic Funds Source, LLC and Warburg Pincus Private Equity XI (Lexington), LLC, an affiliated entity, from investment funds affiliated with Warburg Pincus LLC.
European Fleet business	European commercial fleet card portfolio acquired from ExxonMobil
European Securitization Subsidiary	Gorham Trade Finance B.V., a special purpose entity consolidated by the Company
Evolution1	EB Holdings Corp. and its subsidiaries which includes Evolution1, Inc., acquired by the Company on July 16, 2014
FASB	Financial Accounting Standards Board
FDIC	Federal Deposit Insurance Corporation
FRA	Federal Reserve Act
FSA	Flexible Spending Accounts
GAAP	Generally Accepted Accounting Principles in the United States

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GILTI	Global Intangible Low Taxed Income
HRA	Health Reimbursement Arrangements
HSA	Health Savings Accounts
ICS	Insured Cash Sweep
Indenture	The Notes were issued pursuant to an indenture dated as of January 30, 2013 among the Company, the guarantors listed therein, and The Bank of New York Mellon Trust Company, N.A., as trustee
NCI	Non-controlling interest
NOL	Net operating loss
Notes	$400 million senior notes with a 4.75% fixed rate, issued on January 30, 2013
NYSE	New York Stock Exchange
OFAC	The United States Treasury’s Office of Foreign Assets Control
Over-the-road	Typically heavy trucks traveling long distances
Payment solutions purchase volume	Total amount paid by customers for transactions
Payment processing transactions	Funded payment transactions where the Company maintains the receivable for total purchase
SaaS	Software-as-a-service
SEC	Securities and Exchange Commission
Segment adjusted operating income	A non-GAAP measure that adjusts operating income to exclude specified items that the Company’s management excludes in evaluating segment performance, including acquisition and divestiture related expenses and adjustments including the acquisition related intangible amortization, impairment charges and asset write-offs, the expense associated with stock-based compensation, restructuring and other costs, debt restructuring costs, gain on divestitures, a vendor settlement and unallocated corporate expenses.
Ticking fees	A fee incurred by a borrower to compensate the lender for maintaining a commitment of funds for the prospective borrower for a period of time
Total fuel transactions	Total of transaction processing and payment processing transactions of our Fleet Solutions segment
Transaction processing transactions	Unfunded payment transactions where the Company is the processor and only has receivables for the processing fee
UNIK	UNIK S.A., the Company’s Brazilian subsidiary, which has been subsequently branded WEX Latin America
Utah DFI	Utah Department of Financial Institutions
VCN	Virtual card number
VPN	Virtual private network
WEX	WEX Inc.
WEX Europe Services	Consists primarily of our European Fleet business acquired by the Company from ExxonMobil on December 1, 2014
WEX Health	Evolution1 and Benaissance, collectively

PART I

ITEM 1. BUSINESS

Our Company

WEX Inc. is a global leader in payment solutions, which began operations in 1983 as a Maine corporation where we continue to be headquartered. Over the past 35 years, we have simplified the complexities of payment systems across continents and industries. We incorporated in Delaware on February 16, 2005 (NYSE:WEX). 

We currently operate in three business segments: Fleet Solutions, Travel and Corporate Solutions, and Health and Employee Benefit Solutions, which are described in more detail below. The Company’s U.S. operations include WEX Inc. and our wholly-owned subsidiaries WEX Bank, WEX FleetOne, EFS and WEX Health. Our international operations include our wholly-owned operations, WEX Fuel Cards Australia, WEX Prepaid Cards Australia, WEX Canada, WEX New Zealand, WEX Asia, WEX Europe Limited, UNIK and a controlling interest in WEX Europe Services Limited and its subsidiaries.

WEX Bank, a Utah industrial bank incorporated in 1998, is a FDIC insured depository institution. The functions performed at WEX Bank contribute to the U.S. and Canadian operations of Fleet Solutions and the majority of operations of Travel and Corporate Solutions by providing a funding mechanism, among other services. With our ownership of WEX Bank, we have access to low-cost sources of capital. WEX Bank raises capital primarily through the issuance of brokered deposit accounts and provides the financing and makes credit decisions that enable the Fleet Solutions and Travel and Corporate Solutions segments to extend credit to customers. WEX Bank approves customer applications, maintains appropriate credit lines for each customer, is the account issuer, and is the counterparty for the customer relationships for most of our programs in the U.S. Operations such as sales, marketing, merchant relations, customer service, software development and IT are performed as a service within our organization

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but outside of WEX Bank. WEX Bank’s primary regulators are Utah DFI and the FDIC. The activities performed by WEX Bank are integrated into the operations of our Fleet Solutions and Travel and Corporate Solutions segments.

Developments

Our growth in the past several years has been primarily organic, supplemented by acquisitions in each of our three business segments: Fleet Solutions, Travel and Corporate Solutions and Health and Employee Benefit Solutions. Our acquisitions over the last five years include:

• On January 16, 2019, the Company entered into a definitive agreement to acquire Discovery Benefits, an employee benefits administrator, for total cash consideration of approximately $425 million, including $50 million which will be deferred until January of 2020. State Bankshares, Inc., the seller of Discovery Benefits, will also retain a 4.9% equity interest in the entity resulting from the combination of WEX Health and Discovery Benefits. This acquisition will provide our partners and customers with a more comprehensive suite of products and services and opens go-to-market channels to include consulting firms and brokers. The Company closed this transaction on March 5, 2019.

• On October 26, 2018, the Company entered into a definitive asset purchase agreement to acquire Chevron’s existing customer portfolio for $223.4 million, including $54.6 million for the carrying value of trade accounts receivable. Conversion of the acquired portfolio onto the Company’s payment processing platform started in the first quarter of 2019.

• On October 22, 2018, the Company entered into a definitive agreement to acquire Noventis, an electronic payments network focused on optimizing payment delivery for bills and invoices to commercial entities, for approximately $310 million. This acquisition will expand our reach as a corporate payments supplier and provide more channels to billing aggregators and financial institutions. The Company closed on this transaction on January 24, 2019.

• On October 18, 2017, we acquired certain assets and assumed certain liabilities of AOC, a provider of commercial payments technology, in order tobroaden our capabilities, increase our pool of employees with payments platform experience and allow us to evolve with the needs of our customers and partners through the use of AOC’s payments processing technology platforms.

• On July 1, 2016, we acquired EFS, a provider of customized payment solutions for fleet and corporate customers with a focus on the large and mid-sized over-the-road fleets, in order to expand our customer footprint and utilize EFS’s technology to better serve the needs of our fleet customers.

• On November 18, 2015, our wholly-owned subsidiary Evolution1 acquired Benaissance, a provider of integrated SaaS technologies and services for COBRA and healthcare premium billing, payment and workflow management, to complement our healthcare payments products and services.

• On August 31, 2015, we acquired the remaining 49 percent ownership in UNIK, a majority-owned subsidiary prior to this transaction.

• On December 1, 2014, our majority owned subsidiary, WEX Europe Services Limited, acquired the assets of ExxonMobil’s European commercial fuel card program, which includes operations, funding, pricing, sales and marketing in nine countries in Europe.

• On July 16, 2014, we acquired Evolution1, a provider of financial technology platform solutions within the healthcare industry.    

Competition

We have a strong competitive position in each of our segments. Our product features and extensive account management services are key factors behind our position in the fleet industry. We face competition in all of our segments. Our competitors vie with us for prospective direct fleet customers as well as for companies with which to form strategic relationships. We compete with companies that perform payment and transaction processing or similar services. Financial institutions that issue Visa, MasterCard and American Express credit and charge cards currently compete primarily with our Fleet Solutions and Travel and Corporate Solutions segments. We also compete with other healthcare payment service providers.

The most significant competitive factors include the breadth of features offered, functionality, servicing capability and price. For more information regarding risks related to competition, see the information in Item 1A, under the heading “Our industry continues to become increasingly competitive, which makes it more challenging for us to maintain profit margins at historical levels.”

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We believe the following strengths distinguish us from our competitors:

• Our proprietary closed-loop fuel networks in the U.S. and Australia are among the largest in each country. We describe our fleet payment processing networks as “closed-loop” because we have a direct contractual relationship with both the merchant and the fleet, and only WEX transactions can be processed on these networks. We have built networks that management estimates to provide coverage to over 90 percent of fuel locations in the U.S. and Australia, as well as wide acceptance in Europe and Brazil. This provides our customers with the convenience of broad acceptance.

• Our proprietary closed-loop fuel networks provide us with access to a higher level of fleet-specific information and control as compared to what is typically available on an open-loop network. This provides high-level purchase controls at the point-of-sale, including the flexibility of allowing fleets to restrict purchases and receive automated alerts. Additionally, we have the ability to refine the information reporting provided to our fleet customers and customers of our strategic relationships.

• We offer a differentiated set of products and services, including security and purchase controls, to allow our customers and the customers of our strategic relationships to better manage their vehicle fleets. We provide customized analysis and reporting on the efficiency of fleet vehicles and the purchasing behavior of fleet vehicle drivers. We make this data available to fleet customers through both traditional reporting services and sophisticated web-based data analytics tools.

• Our long-standing strategic relationships, multi-year contracts and high contract renewal rates have contributed to the stability and recurring nature of our revenue base. We believe that we offer a compelling value to our customers relative to our competitors given the breadth and quality of our products and services and our deep understanding of our customers’ operational needs. We have a large installed customer base, with more than 12.4 million vehicles serviced as of December 31, 2018 and co-branded strategic relationships with five of the largest U.S. fleet management providers and with dozens of oil companies that use our private label solutions. Our wide site acceptance, together with our private-label portfolios and value-added product and service offerings, drive high customer satisfaction levels, with a U.S. fleet retention rate in excess of 97 percent (based on the 2018 rate of voluntary customer attrition).

• Our capabilities in the over-the-road segment of the market enhance our ability to serve fleet customers who operate both heavy duty trucks and cars or light duty vehicles in the U.S. and Canada as well as to blend the small fleet and private label businesses for greater scale. The July 2016 acquisition of EFS expanded our customer footprint within the over-the-road market segment.

• Our purchase of ExxonMobil’s commercial fuel card program, which uses a closed-loop network in Europe, combined with the long term supply agreement to serve the current and future European Fleet business, provides us with a strong foundation in the large European fleet market.

• Our travel and corporate payment products offer corporate customers enhanced security and control for complex payment needs, while the addition of the EFS Corporate Payment Solutions set of products expands our presence into the electronic accounts payable segment of the market. Our strategic relationships include four of the largest online travel agencies in the world. We continue to expand our online travel payment solution capabilities and geographies, which currently include North America, Europe, South America and Asia-Pacific. As of December 31, 2018, we settle transactions in over 20 different currencies.

• The demand for our payment processing, account servicing and transaction processing services combined with significant operating scale has historically driven strong revenue growth and earnings potential. We have an extensive history of organic revenue growth driven by our various marketing channels, our extensive network of fuel and service providers, and our growth in transaction volume. Further, we have completed a number of strategic acquisitions to expand our product and service offerings, which have contributed to our revenue growth and diversification of our products and services.

• WEX Health has become a leading provider of cloud-based healthcare payments technology, through the acquisition of Evolution1 in 2014 and Benaissance in 2015. Our large partner network expands our opportunities in the growing healthcare financial technology platform market. WEX Health benefits from both high retention rates and revenue predictability as a result of its SaaS business model.

• We have an enterprise-wide risk management program that helps us identify and manage inherent risks related to our liquidity, extension of credit and interest rates. Our ownership of WEX Bank provides us with access to low cost sources of capital, which provide liquidity to fund our short-term card receivables. We have maintained a long record of low credit losses due to the short-term, non-revolving credit issued to our customer base. Our credit risk management program is enhanced by our proprietary scoring models, managing credit lines and early suspension policy. Interest rate risk is

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managed through diversified funding sources at WEX Bank including interest bearing money market deposits and certificates of deposit with varying maturities. Some of our merchant contracts include some ability to raise rates if interest rates rise.

• We have an experienced and committed management team that has substantial industry knowledge and a proven track record of financial success. The team has been successful in driving strong growth with consistent operating performance. We believe that our management team positions us well to continue successfully implementing our growth strategy and capturing operating efficiencies.

Strategy

The Company’s performance during the year ended December 31, 2018, was shaped by the following previously established strategic priorities: 

• Drive continued growth.  We seek to capture organic growth opportunities across our segments through our product excellence, marketing capabilities, sales force productivity, and revenue management practices. Our acquisition strategy will complement our organic growth by enhancing scale and adding differentiation to our current offerings.

During 2018, we continued to experience strong organic revenue growth. Additionally, during October 2018, the Company entered into a definitive agreement to acquire Noventis, which we expect will expand our reach as a corporate payments supplier and provide more channels to billing aggregators and financial institutions. The Company also entered into a definitive asset purchase agreement to acquire Chevron’s existing trade accounts receivable and customer portfolio during October 2018 in connection with a 2016 agreement with Chevron to issue and operate branded commercial fleet cards.

• Lead through superior technology.  We have built and differentiate ourselves in the marketplace on a distinctive set of technologies across our segments. As our markets continue to evolve, our ability to quickly and cost effectively innovate and deliver superior technological solutions continue to set us apart from our peers.

During 2018, we adopted a cloud first development process and began migrating our fleet technology platform to a secure private cloud. In addition, we have begun migrating our U.S. travel operations onto an internal cloud-based virtual card platform that we acquired as part of the AOC acquisition.

We expect that these moves to the cloud will allow us to improve performance and stability, increase the pace of product development and eventually deliver cost savings.

• Set standard for operational excellence.  We stand apart in our segments by reliably delivering the best solutions to our partners and customers. We are continually optimizing our cost structure and capturing new revenue synergies across our lines of business. Gains in operational efficiency simplify our business, making us more nimble to capture market opportunities as they arise.

• Leveraging our culture to attract and retain the best employees. The Company was certified as a Great Place to Work^® in the U.S. in both 2018 and 2017 by Great Place to Work^®. During 2018, the Company launched the WEX Compassion Fund, which will support WEX employees with grants designed to alleviate financial stress from qualified, personal disasters. The fund will be administered by the WEX Cares Foundation, Inc., a separate non-profit entity that was established for this purpose.

FLEET SOLUTIONS SEGMENT

Overview

Our Fleet Solutions segment is a leader in fleet vehicle payment processing services specifically designed for the needs of small business, large fleets, government fleets and over-the-road carriers. As of December 31, 2018, over 12.4 million vehicles use our payment solutions for fleet management.

Products and Services

Payment processing transactions are the primary revenue source in Fleet Solutions and are based on a percentage of the aggregate dollar amount of the customer’s purchase, a fixed amount per transaction or a combination of both. In a domestic payment processing transaction, we extend short-term credit to the fleet cardholder and pay the merchant on average within ten days for the purchase price, less the fees we retain and record as revenue. Revenue from our WEX Europe Services operations is primarily

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derived from the difference between the negotiated price of the fuel from the supplier and the price charged to the fleet customer. In both types of transactions, we collect the total purchase price from the fleet customer, normally within 30 days from the billing date. In 2018, we processed approximately 459 million payment processing transactions, compared to 430 million payment processing transactions in 2017.    

The following illustration depicts our business process for a typical closed-loop domestic fuel payment processing transaction and a breakdown of the related Fleet Solutions revenue streams:

At the point-of-sale, we identify an array of information including the amount of the expenditure, the driver, the vehicle, the odometer reading, the fuel or vehicle maintenance provider and the items purchased. We provide standard and customized information to customers through monthly vehicle analysis reports, custom reports and our websites. We also alert customers of unusual transactions or transactions that fall outside of pre-established parameters. Customers can access their account information through our website including account history and recent transactions and download the related details. In addition, fleet managers can elect to be notified by email when limits are exceeded in specified purchase categories, including limits on transactions within a time range and gallons per day.

In the over-the-road space, we offer customizable payment solutions including real-time interactive interfaces delivering data integrity through a seamless user interface, alternative payment and money transfer options, comprehensive settlement solutions, real-time reports and analytics for compliance and cost-optimization and fuel reconciliation and mobile optimization tools.

In addition to revenue derived from payment processing transactions, we recognize account servicing revenue, finance fee revenue and other revenue through the following products and services:

• Customer service, account activation and account retention: We offer customer service, account activation and account retention services to fleets and fleet management companies and the fuel and vehicle maintenance providers on our network. Our services include promoting the adoption and use of our products and programs and account retention programs on behalf of our customers and partners.

• Authorization and billing inquiries and account maintenance: We handle authorization and billing questions, account changes and other issues for fleets through our dedicated customer contact centers, which are available 24 hours a day, seven days a week. Fleet customers also have self-service options available to them through our websites.

• Premium fleet services: We assign designated account managers to businesses and government agencies with large fleets. These representatives have in-depth knowledge of both our programs and the operations and objectives of the fleets they service.

• Credit and collections services: We have developed proprietary account approval, credit management and fraud detection programs. Our underwriting model produces a proprietary score, which we use to predict the likelihood of an account becoming delinquent within 12 months of activation. We also use a credit maintenance model to manage ongoing accounts, which helps us to predict the likelihood of account delinquency over an ongoing 18-month time horizon. We have developed

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a collections scoring model that we use to rank and prioritize past due accounts for collection activities. We also employ fraud specialists who monitor accounts, alert customers and provide case management expertise to minimize losses and reduce program abuse.

• Merchant services: Our representatives work with fuel and vehicle maintenance providers to enroll these providers in our network, test all network and terminal software and hardware, and to provide training on our sale, transaction authorization and settlement processes.

• ClearView analytics platform: We provide customers with access to a web-based data analytics platform that offers insights to fleet managers, including integrating and analyzing business fleet fuel purchases to uncover fraud, manage product type controls and identify cost saving opportunities.

• SmartHub mobile app: This mobile application gives business managers access to their account information anytime and anywhere, including the ability to view and make bill payments, access transaction details and control the status of driver fuel cards. As a result, this offering helps customers improve efficiencies, reduce late fees, gain valuable insights and control unauthorized driver spending.

Marketing Channels

We market our fleet products and services both directly and indirectly to commercial and government vehicle fleet customers with small, medium and large fleets, and over-the-road, long haul fleets. Our product suite includes payment processing and transaction processing services, WEX branded fleet cards in North America and Motorpass/Motorcharge-branded fleet cards in Australia. As of December 31, 2018, our direct line of business serviced 4.4 million vehicles. As of the same period, our over-the-road line of business serviced 1.1 million vehicles, marketed under the EFS, EFS Transportation Services, T-Chek and Fleet One brands.

We also market our products and services indirectly through co-branded and private label relationships. With a co-branded relationship product, we market our products and services for, and in collaboration with, both fuel providers and fleet management companies using their brand names and our logo on a co-branded fleet card. These companies seek to offer our payment processing and information management services as a component of their total offering to their fleet customers. As of December 31, 2018, our co-branded marketing channel serviced 2.4 million vehicles.

Our private label programs market our products and services for, and in collaboration with, fuel retailers, using only their brand names. The fuel retailers with which we have formed strategic relationships offer our payment processing and information management products and services to their fleet customers in order to establish and enhance customer loyalty. These fleets use these products and services to purchase fuel at locations of the fuel retailer with whom we have the private label relationship. As of December 31, 2018, our private label marketing channel serviced 4.5 million vehicles.

TRAVEL AND CORPORATE SOLUTIONS SEGMENT

Overview

Our Travel and Corporate Solutions segment provides innovative corporate purchasing and payment capabilities that can be integrated with our customers’ internal systems to streamline their corporate payments, accounts payable and reconciliation processes.

Products and Services

The Travel and Corporate Solutions segment allows businesses to centralize purchasing, simplify complex supply chain processes and eliminate the paper check writing associated with traditional purchase order programs. Our product suite includes electronic payments and corporate cards offered across travel, insurance & warranty and other industries.

Our electronic payments product includes virtual payments and integrated payables. Our virtual payments program is used for transactions where no physical card is presented, including transactions conducted over the telephone, by mail, by fax or on the Internet or for transactions that require pre-authorization, such as hotel reservations. Under our virtual payments program, each transaction is assigned a unique account number with a customized credit limit and expiration date. These controls are in place to limit fraud and unauthorized spending. The unique account number limits purchase amounts and tracks, settles and reconciles purchases more easily, creating efficiencies and cost savings for our customers. Our electronic accounts payable solution is a cloud-based web platform that manages and optimizes all accounts payable disbursements, regardless of type. Automated clearing house, virtual cards, electronic funds transfer and check payments are streamlined and automated through our centralized application.

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We offer a variety of corporate cards, designed to combine all of a customer’s purchasing needs into a single integrated card, streamline the procure-to-pay process with a single card and control travel and entertainment spending and provide employees with greater flexibility.

Additionally, WEX Prepaid Card Australia offers prepaid and gift card products, which provide secure payment and financial management solutions with single card options, access to open or closed loop redemption, load limits and variable expirations.

The following illustration depicts our business process for a typical travel virtual card product transaction:

 1  Guest books a hotel through a travel website owned by an online travel company

 2  Online travel company reserves room at hotel through reservation system using a WEX VCN to reserve the room

 3 Upon checkout, hotel authorizes payment using the WEX VPN

 4 The WEX virtual card restricts charge to predetermined cost of room, incidental expenses are paid for by guest

 5  Online travel company pays WEX. WEX earns fee by retaining percentage of the online travel company reimbursement payment

Marketing Channels

We market our Travel and Corporate Solutions segment products and services both directly and indirectly to new and existing customers. Our products are marketed to commercial and government organizations and we use existing open-loop networks.

HEALTH AND EMPLOYEE BENEFIT SOLUTIONS SEGMENT

Overview

Our Health and Employee Benefit Solutions segment is comprised of our healthcare payment products and SaaS platforms with which we provide simplified payment capabilities in a complex healthcare market as well as employee benefit products in Brazil.

Products and Services

With our healthcare payment products, we provide consumer-directed payments in the complex healthcare market. We partner with employers, health plans, third-party administrators, financial institutions, payroll companies and the public sector to provide a SaaS product to support healthcare benefit programs and administer COBRA, flexible spending, health saving and reimbursement accounts, and other healthcare related employee and dependent benefits.

We currently have relationships with approximately 343,000 employers, reaching 28 million consumers. Revenue is generated primarily from SaaS based monthly fees to partners and interchange fees from spending on customer debit cards issued under flexible spending, health savings and reimbursement accounts. Cards are branded with either Visa or MasterCard and operate on a restricted open loop network.

Our benefit products are offered through our wholly-owned subsidiary, WEX Latin America. Employees using our benefit products have access to salary advances payable in up to 24 monthly installments which are secured by future salary earnings. These advances are funded primarily through securitization of the corresponding receivables.

Health and Employee Benefit Solutions segment revenues are generated primarily from platform usage subscription fees and interchange fees from spending on the WEX Health payment cards.

The following illustration depicts our business process and parties involved in our health care benefits solution:

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BPO: Business Process Outsourcing

Marketing Channels

We market our Health and Employee Benefit Solutions products and services to consumers through an extensive partner network, which includes health plans, third-party administrators, financial institutions, payroll companies and software providers. Our employee benefit products are marketed to consumers through employers in Brazil.

OTHER ITEMS

Employees

As of December 31, 2018, WEX Inc. and its subsidiaries had more than 3,700 employees, of which approximately 3,000 were located in the United States. None of our U.S.-based employees are subject to a collective bargaining agreement. In Europe, certain employees are members of trade unions or works councils. In Brazil, certain employees are members of unions. The Company believes that its relations with its employees, unions and work councils are generally satisfactory.

Technology

We believe that investment in technology is crucial in maintaining and enhancing our competitive position in the marketplace. Our data center network and infrastructure is supported by secure data centers with redundant locations. We have data centers in various locations in the United States including South Portland, Maine and Aurora, Colorado. We also have data centers and infrastructure located in various locations throughout Europe, Australia, New Zealand and Brazil.

Our fleet fuel-based closed-loop proprietary platforms capture detailed information from the fuel and maintenance locations within our network. Operating a proprietary network not only enhances our value proposition, it also enables us to limit dependence on third-party processors and to respond rapidly to changing customer needs with system upgrades, while maintaining a more secure environment than an open-loop network typically allows. Our virtual card open-loop network uses internally developed software and third-party processors. Our infrastructure has been designed around industry-standard architectures to reduce downtime in the event of outages or catastrophic occurrences. At WEX Health, we maintain an integrated multi-account payment platform, including a mobile application. In Australia, New Zealand, Brazil and the United Kingdom, we use standalone platforms to support operations.

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Our secure networks are designed to isolate our databases from unauthorized access. We use security protocols among all applications, and our employees access critical components on a need-to-know basis. As of December 31, 2018, we have not experienced any material incidents in network, application or data security. We are continually improving our technology to enhance customer relationships and to increase efficiency and security. We also review technologies and services provided by others in order to maintain the high level of service expected by our customers and continue to invest in our infrastructure.

For information regarding technology related risks, see the information in Item 1A under the headings “Our business is regularly subject to cyberattacks and attempted security and privacy breaches and we may not be able to adequately protect our information systems, including the data we collect about our customers, which could subject us to liability and damage our reputation”, “Our failure to effectively implement new technology could jeopardize our position as a leader in our industry,” “We are dependent on technology systems and electronic communications networks managed by third parties, which could result in our inability to prevent service disruptions” and “If the technologies we use in operating our business and interacting with our customers fail, are unavailable, or do not operate to expectations, or we fail to successfully implement technology strategies and capabilities in connection with our outsourcing arrangements, our business and results of operation could be adversely impacted.”

Seasonality

Our businesses are affected by seasonal variations. For example, fuel prices are typically higher during the summer and online travel sales are typically higher during the third quarter. In addition, we experience seasonality in our Health and Employee Benefit Solutions segment as consumer spend is correlated with insurance deductibles, typically resulting in higher spend in the early part of the year and until employees meet their deductibles.

Intellectual Property

We rely on a combination of patent, copyright, trade secret and trademark laws, confidentiality procedures, contractual provisions and other similar measures to protect the proprietary information and technology used in our business. We generally enter into agreements with clients, consultants, service providers and other partners, whether current or prospective, that contain provisions restricting use and disclosure of our proprietary information and technology. Operationally, we have implemented certain safeguards designed to control access to and distribution of our proprietary information and technology. Despite these efforts, unauthorized parties may attempt to access or use our proprietary information and technology, and third parties may develop similar and/or competing technology independently. We pursue registration and protection of certain trademarks in the U.S. and other countries in which we operate or plan to operate. We market our products and services using the WEX brand name globally, as well as other brand names such as Fleet One, EFS and WEX Health Cloud in the U.S., and Motorpass in Australia. 

Regulation - United States

The Company and its affiliates are subject to certain state and federal laws and regulations, which govern insured depository institutions and their affiliates as well as our operations in the healthcare market. WEX Bank is subject to supervision and examination by both the Utah DFI and the FDIC. The Company and its affiliates are subject to certain limitations on transactions with affiliates set forth in the FRA. The Company is subject to anti-tying provisions in the Bank Holding Company Act. State and Federal laws and regulations limit the loans WEX Bank may make to one borrower and the types of investments WEX Bank may make.

Below is a description of the material elements of the laws, regulations, policies and other regulatory matters affecting the operations of WEX in the United States.

Exemption from Certain Requirements of the Bank Holding Company Act

As an industrial bank organized under the laws of Utah that does not accept demand deposits that may be withdrawn by check or similar means, WEX Bank meets the criteria for exemption from the definition of “bank” under the Bank Holding Company Act. As a result, the Company is generally, except as stated above, not subject to the Bank Holding Company Act.

Restrictions on Intercompany Borrowings and Transactions

Sections 23A and 23B of the FRA and the implementing regulations limit the extent to which the Company can borrow or otherwise obtain credit from or engage in other “covered transactions” with WEX Bank. “Covered transactions” include loans or extensions of credit, purchases of or investments in securities, purchases of assets, including assets subject to an agreement to repurchase, acceptance of securities as collateral for a loan or extension of credit, or the issuance of a guarantee, acceptance, or letter of credit. Although the applicable rules do not serve as an outright ban on engaging in “covered transactions,” they do limit the amount of covered transactions WEX Bank may have with any one affiliate and with all affiliates in the aggregate. The applicable rules also require that the Company engage in such transactions with WEX Bank only on terms and under circumstances that are substantially the same, or at least as favorable to WEX Bank, as those prevailing at the time for comparable transactions with

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nonaffiliated companies. Furthermore, with certain exceptions, each loan or extension of credit by WEX Bank to the Company or its other affiliates must be secured by collateral with a market value ranging from 100 percent to 130 percent of the amount of the loan or extension of credit, depending on the type of collateral.

The Consumer Financial Protection Bureau

The Dodd-Frank Act established the CFPB to regulate the offering of consumer financial products or services under the federal consumer financial laws. In addition, the CFPB was granted general authority to prevent covered persons or service providers from committing or engaging in unfair, deceptive or abusive acts or practices under federal law in connection with any transaction with a consumer for a consumer financial product or service. The CFPB has broad rulemaking authority for a wide range of consumer protection laws. The legislation also gives the state attorneys general the ability to enforce applicable federal consumer protection laws.

In addition, the Durbin Amendment to the Dodd-Frank Act provided that interchange fees that a card issuer or payment network receives or charges for debit transactions will now be regulated by the Federal Reserve and must be “reasonable and proportional” to the cost incurred by the card issuer in authorizing, clearing and settling the transaction. Payment network fees may not be used directly or indirectly to compensate card issuers in circumvention of the interchange transaction fee restrictions. In July 2011, the Federal Reserve published the final rules governing debit interchange fees. Effective in October 2011, with certain exemptions, debit interchange rates were capped at $0.21 per transaction with an additional component of five basis points of the transaction’s value to reflect a portion of the issuer’s fraud losses plus, for qualifying issuing financial institutions, an additional $0.01 per transaction in debit interchange for fraud prevention costs.

On January 25, 2018, the CFPB released final amendments to its October 5, 2016 final rule amending Regulations E and Z to create comprehensive consumer protections for prepaid financial products. Among other things, the rule establishes requirements for the treatment of funds on lost or stolen cards, error resolution and investigation, upfront fee disclosures, access to account information, and overdraft features if offered in conjunction with prepaid accounts. The rule becomes effective on April 1, 2019.

Brokered Deposits

Under FDIC regulations, depending upon their capital classification, banks may be restricted in their ability to accept brokered deposits. “Well capitalized” banks are permitted to accept brokered deposits, but banks that are not “well capitalized” are not permitted to accept such deposits. The FDIC may, on a case-by-case basis, permit banks that are “adequately capitalized” to accept brokered deposits if the FDIC determines that acceptance of such deposits would not constitute an unsafe or unsound banking practice.

Other Financial Regulatory Requirements

WEX Bank must monitor and report unusual or suspicious account activity, as well as transactions involving amounts in excess of prescribed limits, as required by the Bank Secrecy Act and Internal Revenue Service regulations. The USA PATRIOT Act of 2001 substantially broadened the scope of U.S. anti-money laundering laws and regulations by imposing significant new compliance and due diligence obligations, identifying new crimes and penalties and expanding the extra-territorial jurisdiction of the United States. The United States Treasury Department has proposed and, in some cases, issued a number of implementing regulations which impose obligations on financial institutions to maintain appropriate policies, procedures and controls to detect, prevent and report money laundering and terrorist financing and to verify the identity of their customers. Certain of those regulations impose specific due diligence requirements on financial institutions that maintain correspondent or private banking relationships with non-U.S. financial institutions or persons. For instance, in August 2018, new due diligence requirements established by the Financial Crimes Enforcement Network became effective, requiring financial institutions to adopt enhanced anti-money laundering procedures for purposes of determining the control and ownership stakes of business customers. Failure of a financial institution to maintain and implement adequate programs to combat money laundering and terrorist financing could have serious legal and reputational consequences for the institution.

The U.S. federal government has imposed economic sanctions that affect transactions with designated foreign countries, nationals and others. These sanctions, which are administered by the OFAC, take many different forms but generally include one or more of the following elements: (i) restrictions on trade with or investment in a sanctioned country, including prohibitions against direct or indirect imports from and exports to a sanctioned country and prohibitions on “U.S. persons” engaging in financial transactions relating to making investments in, or providing investment-related advice or assistance to, a sanctioned country; and (ii) a blocking of assets in which the government or specially designated nationals of the sanctioned country have an interest, by prohibiting transfers of property subject to U.S. jurisdiction (including property in the possession or control of U.S. persons). Blocked assets (for example, property and bank deposits) cannot be paid out, withdrawn, set off or transferred in any manner without a license from OFAC. Failure to comply with these sanctions could have serious legal and reputational consequences.

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Under the Financial Services Modernization Act of 1999, also referred to as the “Gramm-Leach-Bliley Act” (or “GLBA”), the Company and WEX Bank are required to maintain a comprehensive written information security program that includes administrative, technical and physical safeguards relating to customer information. However, this requirement does not generally apply to information about companies or about individuals who obtain financial products or services for business, commercial, or agricultural purposes. The GLBA also requires the Company and WEX Bank to provide initial and annual privacy notices to customers that describe in general terms their information sharing practices. If the Company and WEX Bank intend to share nonpublic personal information about customers with affiliates and/or nonaffiliated third parties, they must provide customers with a notice and a reasonable period of time for each consumer to “opt out” of any such disclosure. In addition to U.S. federal privacy laws, states also have adopted statutes, regulations and other measures governing the collection and distribution of nonpublic personal information about customers. In some cases these state measures are preempted by federal law, but if not, the Company and WEX Bank must monitor and comply with such laws in the conduct of its business.

Escheat Laws

We are subject to unclaimed or abandoned property state laws in the United States and in certain foreign countries that require us to transfer to certain government authorities the unclaimed property of others that we hold when that property has been unclaimed for a certain period of time. Moreover, we are subject to audit by state and foreign regulatory authorities with regard to our escheatment practices.

Restrictions on Dividends

WEX Bank is subject to various regulatory requirements relating to the payment of dividends, including requirements to maintain capital above regulatory minimums. A banking regulator may determine that the payment of dividends would be inappropriate and could prohibit payment. Further, WEX Bank may not pay a dividend if it is undercapitalized or would become undercapitalized as a result of paying the dividend. Utah law permits WEX Bank to pay dividends out of the net profits of the industrial bank after providing for all expenses, losses, interest, and taxes accrued or due, but if WEX Bank’s surplus account is less than 100 percent of its capital stock, WEX Bank must transfer up to 10 percent of its net profits to the surplus account prior to the payment of any dividends.

Company Obligations to WEX Bank

Any non-deposit obligation of WEX Bank to the Company is subordinate, in right of payment, to deposits and other indebtedness of WEX Bank. In the event of the Company’s bankruptcy, any commitment by the Company to a federal bank regulatory agency to maintain the capital of WEX Bank will be assumed by the bankruptcy trustee and entitled to priority of payment.

Restrictions on Ownership of WEX Inc. Common Stock

WEX Bank, and therefore the Company, is subject to bank regulations that impose requirements on entities that might control WEX Bank through control of the Company. These requirements are discussed in Item 1A under the heading “If any entity controls 10 percent or more of our common stock and such entity has caused a violation of applicable banking laws by its failure to obtain any required approvals prior to acquiring that common stock, we have the power to, and may be required to, restrict such entity’s ability to vote shares held by it.”

Healthcare Regulation

The federal and state governments in the U.S. continue to enact and consider many broad-based legislative and regulatory proposals that could materially impact various aspects of our health-related business. The plans that our partners administer feature consumer accounts that pay for out-of-pocket expenses incurred by employees and qualified dependents. These accounts include CDH accounts such as HSAs, FSAs and HRAs, as well as wellness incentives, commuter benefits, and other account-based arrangements. Most of these accounts are tax-advantaged under the appropriate law.

Employers are continuing to use CDH approaches to manage the rate of increase in healthcare expenditures and to enable employees to make decisions about the use of their healthcare savings. CDH programs provide consumers with visibility of and control over payment for healthcare expenses.

The products that WEX Health’s software and payment solutions support are subject to various state and federal laws, including the Affordable Care Act, and regulations promulgated by the Internal Revenue Service, the Department of Health and Human Services, the Department of Labor, and the Consumer Financial Protection Bureau, and similar state laws. As such, changes in the status of tax-advantaged CDH accounts could affect the attractiveness of these products.

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In addition to tax-related regulation, the Patient Protection and Affordable Care Act and the Health Care and Education Reconciliation Act (collectively referred to as “Health Care Reform”) mandated broad changes affecting insured and self-insured health benefit plans that impact our current business model, including our relationships with current and future customers, producers and health care providers, products, services, processes and technology. Health Care Reform left many details to be established through regulations. While federal agencies have published proposed and final regulations with respect to most provisions, some issues remain uncertain. The 2017 Tax Act repealed certain provisions of Health Care Reform, including reducing to zero the tax penalty for individuals who decline to obtain Health Care Reform-compliant healthcare coverage. The current U.S. Administration has signaled its desire to significantly modify or completely repeal Health Care Reform and the associated implementing regulations. It is unclear what, if any, additional legislative or regulatory actions may be taken in this regard. Accordingly, there may be an extended period of uncertainty and unpredictability in the U.S. health care market, which may materially affect the availability and cost of health coverage, the viability of health care providers and health benefit plans, the proportion of persons in the U.S. who have health insurance; the distribution between privately funded and government funded health insurance; and the future demand for, and profitability of, the offerings of our health-related business under our current business model.

In connection with the processing of data, we frequently undertake or are subject to specific compliance obligations under privacy and data security-related laws, including the Health Insurance Portability and Accountability Act of 1996, or HIPAA, GLBA, and similar state and federal laws governing the collection, use, protection and disclosure of nonpublic personally identifiable information, including individually identifiable health information.

HIPAA and its implementing regulations, as amended by the Health Information Technology for Economic and Clinical Health Act, or the HITECH Act, impose requirements relating to the privacy, security and transmission of individually identifiable health information. Among other things, HIPAA, as amended by the HITECH Act, and its implementing regulations, subjects us to regulations and contractual obligations that impose privacy and security standards and breach notification and reporting requirements.

In addition to tax, federal data privacy, security laws and regulations, we are subject to state laws governing confidentiality and security of personally identifiable information and additional state-imposed breach notification and reporting requirements.

Regulation - Foreign

The conduct of our businesses and the use of our products and services outside the U.S., are subject to various foreign laws and regulations administered by government entities and agencies in the countries and territories where we operate. Below is a summary of material applicable laws and regulations in the jurisdictions around the world in which we do business.

Asia-Pacific

Australia

The Company’s Australian operations are subject to laws and regulations of the Commonwealth of Australia governing banking and payment systems, financial services, credit products and money laundering. Because none of WEX Australia, WEX Fuel Cards Australia or WEX Prepaid Cards Australia holds an Australian Financial Services License or credit license or is an authorized deposit-taking institution, they operate within a framework of regulatory relief and exemptions afforded them on the basis that they satisfy the requisite conditions. The Company’s Australian operations are also subject to the Privacy Act (1988) and the Australian Privacy Principles.

Asia, including Singapore

The Company’s operations in Asia are subject to the operation of the laws and regulation of the countries in which we operate, including laws with regards to banking and payment systems, financial services, money laundering and data protection.

Europe

The Company’s European operations are subject to laws and regulations of the European Union and the countries in which we operate including, among others, those governing payment services, data protection, including General Data Protection Regulation (commonly referred to as “GDPR”), and information security, consumer credit and anti-money laundering.

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Brazil

The Company’s Brazilian operations are subject to laws and regulations of the Brazilian government, in particular the Central Bank of Brazil. Brazil’s labor systems are governed by the Consolidation of Brazilian Labor Laws. Brazil is a signatory of the World Trade Organization’s Trade-Related Aspects of Intellectual Property Rights agreement. This agreement establishes a minimum protection standard to property rights and requires signatory countries to review and adapt national laws that meet that standard.

Segments and Geographic Information

For an analysis of financial information about our segments as well as our geographic areas, see Item 8 – Note 23, Segment Information, of our consolidated financial statements included elsewhere in this Annual Report on Form 10–K.

For a description of the risks related to our foreign operations, see the information in Item 1A, Risk Factors under the heading “We are exposed to risks associated with operations outside of the United States, which could harm both our U.S. and international operations.”

Available Information

The Company’s principal executive offices are located at 1 Hancock St, Portland, ME 04101. Our telephone number is (207) 773-8171, and our Internet address is www.wexinc.com. The Company’s annual, quarterly and current reports, proxy statements and certain other information filed with the SEC, as well as amendments thereto, may be obtained free of charge from our website. These documents are posted to our website as soon as reasonably practicable after we have filed or furnished these documents with the SEC. The SEC maintains an Internet site that contains reports, proxy and information statements and other information regarding issuers that file electronically with the SEC at www.sec.gov. The Company’s Audit Committee Charter, Compensation Committee Charter, Finance Committee Charter, Corporate Governance Committee Charter, Technology Committee Charter, Corporate Governance Guidelines and Code of Business Conduct and Ethics are available without charge through the “Corporate Governance” portion of the Investor Relations page of the Company’s website. Copies will also be provided, free of charge, to any stockholder upon written request to Investor Relations at the address above or by telephone at (866) 230-1633.

The Company’s Internet site and the information contained on it are not incorporated into this Form 10–K and should not be considered part of this report.

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ITEM 1A. RISK FACTORS

The risks and uncertainties described below are not the only risks and uncertainties that we face. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also impair our business operations. If any of those risks actually occurs, our business, financial condition, results of operations and cash flows could suffer. The risks and uncertainties discussed below also include forward-looking statements and our actual results may differ materially from those discussed in these forward-looking statements.

Risks Relating to Our Company

A significant portion of our revenues are related to the dollar amount of fuel purchased by our customers, and, as a result, volatility in fuel prices could have an adverse effect on our revenues.

Our customers in our Fleet Solutions segment primarily purchase fuel. Accordingly, a significant part of our revenue is dependent on fuel prices, which are prone to volatility. As of December 31, 2018, management estimates that approximately 25 percent of our total revenues result from fees paid to us by fuel providers based on a negotiated percentage of the purchase price of fuel purchased by our customers. We estimate that during 2019, each one cent decline in average domestic fuel prices below average actual prices would result in approximately a $1.2 million decline in 2019 revenue. Therefore, extended declines in the price of fuel would have a material adverse effect on our total revenues. We are currently exposed to the full impact of fuel price declines and our net income is exposed to fuel price volatility. If fuel prices decline, this will negatively impact our revenue and income.

Fuel prices are dependent on many factors, all of which are beyond our control. These factors include, among others:

• supply and demand for oil and gas, and expectations regarding supply and demand;

• speculative trading;

• actions by major oil exporting nations;

• level of U.S. oil production;

• advances in oil production technologies;

• political conditions in other oil-producing, gas-producing or supply-route countries, including revolution, insurgency, terrorism or war;

• refinery capacity;

• weather;

• the prices of foreign exports and the availability of alternate fuel sources;

• value of the U.S. dollar versus other major currencies;

• actions by members of Organization of Petroleum Exporting Countries and other major oil-producing nations;

• implementation of fuel efficiency standards and the adoption by fleet customers of vehicles with greater fuel efficiency or alternative fuel sources;

• general worldwide economic conditions; and

• governmental regulations, taxes and tariffs.

Another component of our revenue stream is the late fees that our customers pay on past due balances. As a result, a decrease in the price of fuel leads to a decline in the amount of late fees we earn from customers who fail to pay us timely.

A portion of our revenue in Europe is derived from the difference between the negotiated price of the fuel from the supplier and the price charged to the fleet customer. As a result, a contraction in these differences would reduce revenues and could adversely affect our operating results.

Revenue from our European Fleet business is primarily derived from transactions where our revenue is tied to the difference between the negotiated price of the fuel from the supplier and the price charged to the fleet customer. The merchant’s cost of fuel is dependent on several factors including, among others, the factors described above affecting fuel prices. We experience fuel-price related revenue contraction when the merchant’s cost of fuel increases at a faster rate than the fuel price we charge to our fleet customers, or the fuel-price we charge to our fleet customers decreases at a faster rate than the merchant’s cost of fuel. Accordingly, we generate less revenue, which could adversely affect our operating results.

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Changes in interchange fees could decrease our revenue.

A portion of our revenue is generated by network processing fees charged to merchants, known as interchange fees, associated with transactions processed using our cards. Interchange fee amounts associated with cards are affected by a number of factors, including regulatory limits and fee changes. In addition, interchange fees are the subject of intense legal and regulatory scrutiny and competitive pressures in the electronic payments industry. For example, the Durbin Amendment to the Dodd-Frank Act, which serves to limit interchange fees may restrict or otherwise impact the way we do business or limit our ability to charge certain fees to customers. The Consumer Financial Protection Bureau, or the CFPB, is also engaged in rulemaking and regulation of the payments industry, in particular with respect to prepaid cards. On January 25, 2018, the CFPB issued a final rule amending several aspects of its prepaid accounts rule adopted in October 2016 and delayed the overall effective date for such prepaid accounts rule to April 1, 2019. The extensive nature of these regulations and the implementation dates for this additional rulemaking may result in additional compliance obligations and expense for our business and our customers. These factors could result in lower interchange fees generally in the future. Temporary or permanent decreases in the interchange fees associated with our card transactions, could adversely affect our business and operating results.

If we fail to adequately assess and monitor credit risks posed by our customers, we could experience an increase in credit loss.

We are subject to credit risk posed by our customers, many of which are small-to mid-sized businesses. Because we often fund a customer’s entire receivable while our revenue is generated from only a small percentage of that amount, our risk of loss is amplified by the customer’s failure to pay. We use various formulas and models to screen potential customers and establish appropriate credit limits, but these formulas and models cannot eliminate all potential credit risks and may not prevent us from approving applications that are fraudulently completed. Moreover, businesses that are good credit risks at the time of application may deteriorate over time and we may fail to detect such changes. In addition, changes to our policies on the types and profiles of businesses to which we extend credit could also have an adverse impact on our credit losses. In times of economic slowdown, the number of our customers who default on payments owed to us tends to increase. If we fail to adequately manage our credit risks, our provision for credit losses on the income statement could be significantly higher.

We may incur substantial losses due to fraudulent use of our payment cards, payment systems or vouchers.

Under certain circumstances, we may bear the risk of substantial losses due to fraudulent use of our payment cards or payment systems. We are also subject to risk from fraudulent acts of employees or contractors. Although we maintain insurance for certain types of losses, the coverage may be insufficient or limited and may not fully protect against those losses. Additionally, criminals use sophisticated illegal activities to target us, including “skimming”, counterfeit cards and accounts, and identity theft. A single, significant incident or a series of incidents of fraud or theft could lead to, among other things, some or all of the following:

• increased overall level of fraud;

• direct financial losses as a result of fraudulent activity;

• reputational harm;

• decreased desirability of our services;

• greater regulation;

• increased compliance costs;

• imposition of regulatory sanctions; or

• significant monetary fines.

All of the above could have a material adverse effect on our operations, business success, financial condition and results of operations. Our provision for credit losses, inclusive of fraud losses, was $66.5 million in 2018 compared to $64.2 million in 2017.

Fluctuations in foreign currency exchange rates could affect our financial results.

We earn revenues, pay expenses, own assets and incur liabilities in countries using currencies other than the U.S. dollar. Such currencies include, but are not limited to, the Australian dollar, the Canadian dollar, the Euro, British Pound sterling, New Zealand dollar and Brazilian Real. Because our consolidated financial statements are presented in U.S. dollars, we must translate revenues, income and expenses, as well as assets and liabilities, into U.S. dollars at exchange rates in effect during or at the end of each reporting period. Realized and unrealized gains and losses on foreign currency transactions as well as the re-measurement of our cash, receivable and payable balances that are denominated in foreign

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currencies, are recorded directly in the consolidated statements of income. In addition, gains and losses associated with the Company’s foreign currency exchange derivatives are recorded on the consolidated statements of income.

Therefore, increases or decreases in the value of the U.S. dollar against other major currencies that we use to conduct our business will affect our revenues, operating income and the value of balance sheet items denominated in those currencies. Fluctuations in foreign currency exchange rates, particularly fluctuations in the U.S. dollar against other currencies, may materially affect our financial results.

Our exposure to counterparty risk could create an adverse effect on our financial condition.

We engage in a number of transactions where counterparty risk is a relevant factor, including transactions with customers, derivatives counterparties and those businesses we work with to provide services, among others. These risks are dependent upon market conditions and also the real and perceived viability of the counterparty. The failure or perceived weakness of any of our counterparties has the potential to expose us to risk of loss in certain situations. Certain contracts and arrangements that we enter into with counterparties may provide us with indemnification clauses to protect us from financial loss. If the counterparty fails to, or is unable to fulfill these indemnification clauses, we may incur losses as well as harm to our reputation.

We have substantial indebtedness, which may materially and adversely affect our financial flexibility and our ability to meet our debt service obligations.

Our 2016 Credit Agreement, as amended through December 31, 2018, provides for a tranche A term loan facility in the original principal amount of $480 million, a tranche B term loan facility in the original principal amount equal to $1,335 million and a $720 million secured revolving credit facility, with a $250 million sublimit for letters of credit and a $20 million sublimit for swingline loans. On January 18, 2019, we entered into a fifth amendment to our 2016 Credit Agreement that increased the principal amount of the tranche A term loan facility by $300 million and provides for delayed draw revolving credit commitments in the amount of $25 million and term A loan commitments in the amount of $275 million to finance in part the Discovery Benefits acquisition, subject to satisfaction of customary funding conditions. The tranche A term loans and tranche B term loans mature, and the revolving credit facility terminates and is repayable, on July 1, 2023, except that the tranche A term loans and the revolving credit facility are subject to earlier maturity if, on or before April 2023 and August 2022, respectively, the tranche B term loan facility and the Notes (defined below) are not repaid, refinanced or the maturity dates thereof extended to October 2023 or later. In addition to the 2016 Credit Agreement, our indebtedness consists of our 4.750 percent senior notes in the principal amount of $400 million due 2023 (the “Notes”), deposits issued by WEX Bank and other liabilities outstanding. Our indebtedness could, among other things:

• require us to dedicate a substantial portion of our cash flow to repaying our indebtedness, thus reducing the amount of funds available for other general corporate purposes;

• limit our ability to borrow additional funds necessary for working capital, capital expenditures or other general corporate purposes;

• increase our vulnerability to adverse general economic or industry conditions; and

• limit our flexibility in planning for, or reacting to changes in, our business.

There can be no assurance that we will be able to meet our indebtedness obligations, including any of our obligations under the Notes. In addition, we may need to incur substantial additional indebtedness in the future to fund our operations or certain strategic objectives. However, we may not be able to obtain the additional financing necessary for these purposes.

In addition, under the 2016 Credit Agreement as amended, unless otherwise agreed by the requisite lenders under the revolving and term A credit facilities, we are required to remain in compliance with a consolidated EBITDA to consolidated interest charge ratio, measured quarterly, of no less than 3.00 to 1.00; and a consolidated funded indebtedness (excluding up to $350 million of consolidated funded indebtedness due to permitted securitization transactions and excluding the amount of consolidated funded indebtedness constituting the non-recourse portion of permitted factoring transactions) to consolidated EBITDA ratio, measured quarterly, of no more than 5.00 to 1.00 at December 31, 2018, decreasing to 4.50 to 1.00 at December 31, 2019, further decreasing to 4.25 to 1.0 at December 31, 2020 and further decreasing to 4.0 to 1.0 at December 31, 2021 and thereafter. In addition, in the event of an acquisition meeting certain specified criteria, the consolidated leverage ratio shall be permanently increased one time, applicable to each measurement date after such election, by 0.50:1.00. In connection with the Noventis acquisition which closed on January 24, 2019, we elected to designate the Noventis acquisition as a specified acquisition and thereby the consolidated leverage ratio has been effectively increased by 0.50:1.00 for all measurement dates after such election. The 2016 Credit Agreement also contains

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various affirmative and negative covenants that, subject to certain customary exceptions, restrict our ability to, among other things, create liens over our property, incur additional indebtedness, enter into sale and lease-back transactions, make loans, advances or other investments, make non-ordinary course asset sales, declare or pay dividends or make other distributions with respect to equity interests, change the nature of our business, enter into certain agreements which restrict our ability to pay dividends or other distributions or create liens on our property, transact business with affiliates and/or merge or consolidate with any other person. Our ability to comply with these provisions may be affected by events beyond our control. Failure to comply with the financial covenants or any other non-financial or restrictive covenant in our 2016 Credit Agreement could create a default. Upon a default, our lenders could accelerate the indebtedness under the facilities (except only the requisite lenders under the revolving credit facility and the tranche A term loan facility may accelerate the revolving credit facility due to a breach of the financial covenants), foreclose against their collateral or seek other remedies, which could trigger a default under the Notes and would jeopardize our ability to continue our current operations. The Notes also contain customary negative and affirmative covenants and events of default that if breached could allow the requisite noteholders to accelerate the maturity of the Notes and to exercise their rights and remedies under the Notes, and could also trigger a default under the 2016 Credit Agreement.

Despite our substantial indebtedness, we may still be able to incur more debt, intensifying the risks described above.

Subject to restrictions in our 2016 Credit Agreement and the Notes, we may incur additional indebtedness, which could increase the risks associated with our already substantial indebtedness. Subject to certain limitations, including compliance with the covenants in our 2016 Credit Agreement, we have the ability to borrow additional funds under our 2016 Credit Agreement. On January 18, 2019 we entered into a fifth amendment to our 2016 Credit Agreement that increased the principal amount of the tranche A term loan facility by $300 million and provided for delayed draw revolving credit commitments in the amount of $25 million and term loan A loan commitments in the amount of $275 million to finance in part the Discovery Benefits acquisition, subject to satisfaction of customary funding conditions. On March 5, 2019, the Company fully drew down these commitments, consisting of $250.0 million in tranche Aterm loans and an incremental $50.0 million of revolving credit in order to fund the acquisition of Discovery Benefits. If we pursue additional acquisitions, we could incur further debt or further amend the terms of our existing 2016 Credit Agreement.

This indebtedness could have the effect, among other things, of reducing our flexibility to respond to changing business and economic conditions and increasing interest expense.

Moreover, we may be required to raise substantial additional financing to fund working capital, capital expenditures, acquisitions or other general corporate requirements. Our ability to arrange additional financing or refinancing will depend on, among other factors, our financial position and performance, as well as prevailing market conditions and other factors beyond our control. There can be no assurance that we will be able to obtain additional financing or refinancing on terms acceptable to us or at all.

Volatility in the financial markets may negatively impact our ability to access credit and the terms at which we would access such credit.

Adverse conditions in the credit market may limit our ability to access credit at a time when we would like or need to do so. Our senior secured revolving credit facility under the 2016 Credit Agreement expires in July 2023 (subject to earlier maturity of the revolving and term A credit facilities to August 2022 or April 2023, respectively, if the Notes and tranche B term loans are not repaid or the maturity extended) when the outstanding balance of the revolving credit facility and the tranche A term loan will be due, and the tranche B term loan. The Notes will be due in February 2023, but if not refinanced by August 2022, our revolving credit facility and term A facility will have an earlier maturity as described above. Any limitation on the availability of funds or credit facilities could have an impact on our ability to refinance the maturing debt or react to changing economic and business conditions which could adversely impact us.

Volatility in the financial markets may negatively impact WEX Bank’s ability to attract and retain deposits.

Adverse conditions in the credit market may limit WEX Bank’s ability to attract deposits at a time when it would like or need to do so. A significant credit ratings downgrade, material capital market disruptions, significant withdrawals by depositors at WEX Bank, or adverse changes to its industrial bank charter could impact our ability to maintain adequate liquidity and impact our ability to provide competitive offerings to our customers. Any limitation of availability of deposits could have an impact on our ability to finance our U.S. accounts receivable which would adversely impact us.

Our industrial bank subsidiary is subject to funding risks associated with its reliance on brokered deposits.

Under applicable regulations, if WEX Bank were no longer “well capitalized,” it would not be able to accept brokered deposits without the approval of the FDIC. WEX Bank’s inability to accept brokered deposits, or a loss of a

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significant amount of its brokered deposits, could adversely affect our liquidity. Additionally, such circumstances could require it to raise deposit rates in an attempt to attract new deposits, or to obtain funds through other sources at higher rates, which would adversely affect our results of operations.

To service our indebtedness, we will require a significant amount of cash. Our ability to generate cash depends on many factors beyond our control.

Our ability to make payments on and to refinance our indebtedness, and to fund capital expenditures, acquisitions and research and development efforts will depend on our ability to generate cash. This, to a certain extent, is subject to economic, financial, competitive, legislative, regulatory and other factors that are beyond our control.

We have substantial indebtedness, and may incur additional indebtedness, which could lead to increased interest expense and could increase the amount of cash flows required to fund interest expense associated with our indebtedness. In addition, certain obligations under the 2016 Credit Agreement bear interest at variable interest rates. As of December 31, 2018, we maintained four forward-fixed interest rate swap agreements which are intended to fix the future interest payments associated with $950 million of our variable-rate borrowings. On March 12, 2019, we entered into an additional $450 million in forward-fixed rate swaps. These swap agreements expire at various points prior to the maturity of the 2016 Credit Agreement. Despite these derivative contracts, interest rate increases still could result in larger debt service requirements. Such an increase in our debt service obligations would adversely affect our cash flows. We cannot assure you that our business will generate sufficient cash flows from operations, that anticipated cost savings and operating improvements will be realized on schedule or at all, that future borrowings will be available to us under our 2016 Credit Agreement or any subsequent credit agreement, or that we can obtain alternative financing proceeds in an amount sufficient to enable us to pay our indebtedness, including the Notes, or to fund our other liquidity needs. We may need to refinance all or a portion of our indebtedness, including the Notes, at or before maturity. We cannot assure you that we will be able to refinance any of our indebtedness on commercially reasonable terms or at all.

The debt service obligations under our 2016 Credit Agreement could also reduce funds available for working capital, capital expenditures, acquisitions and other general corporate purposes and may create competitive disadvantages relative to other companies with lower debt levels. As part of our continuing strategy, we also regularly evaluate potential acquisitions that could cause us to incur additional debt. If we do not achieve the expected benefits and cost savings from any such acquisitions, or if the financial performance of the combined companies do not meet expectations, then our ability to service our indebtedness may be adversely impacted.

In an environment of increasing interest rates, interest expense on the variable rate portion of our borrowings would increase and we may not be able to replace our maturing debt with new debt that carries the same interest rates. We may be adversely affected by significant changes in the brokered deposit market.

Our industrial bank subsidiary, WEX Bank, uses collectively brokered deposits, including certificates of deposit and interest-bearing money-market deposits, to finance payments to major oil companies. Certificates of deposit carry fixed interest rates from issuance to maturity, which vary and are relatively short term in duration. The interest-bearing money market deposits carry variable rates. Upon maturity, the deposits will likely be replaced by issuing new deposits to the extent that they are needed. In a rising interest rate environment, WEX Bank would not be able to replace maturing deposits with deposits that carry the same or lower interest rates. Therefore, rising interest rates would result in reduced net income to the extent that certificates of deposit and money market deposits mature and are replaced. At December 31, 2018, WEX Bank had outstanding $505.6 million in certificates of deposit maturing within one year, $345.2 million in certificates of deposit maturing between one and five years, and $283.8 million in interest-bearing money market deposits, for an aggregate exposure of $1,134.6 million in brokered deposits at WEX Bank.

Additionally, under our 2016 Credit Agreement and Notes, we had $2,145.1 million of indebtedness outstanding at December 31, 2018, of which approximately 34% was at variable interest rates. An increase in interest rates would increase the cost of borrowing under our 2016 Credit Agreement.

Our 2016 Credit Agreement uses LIBOR as a reference rate for our term loans and revolving credit facility, such that the interest due pursuant to such loans may be calculated using LIBOR (subject to a stated minimum value). On July 27, 2017, the United Kingdom’s Financial Conduct Authority, which regulates LIBOR, announced that it intends to stop encouraging or compelling banks to submit rates for the calibration of LIBOR by the end of 2021. In June 2017, the Alternative Reference Rates Committee selected the Secured Overnight Financing Rate (“SOFR”), a new index calculated by reference to short-term repurchase agreements backed by Treasury securities, as its preferred replacement for U.S. dollar LIBOR. Whether or not SOFR attains market acceptance as a LIBOR replacement tool remains in question. As such, the future of LIBOR and the potential alternatives at this time is uncertain. If the method for calculation of LIBOR changes, if LIBOR is no longer available or if lenders have increased costs due to changes in LIBOR or changes in law, we may suffer

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from potential increases in interest rate costs on our floating debt rate and our hedging arrangements may not perform as expected. Further, we may need to renegotiate our 2016 Credit Agreement and the variable rate loans thereunder to replace the interest rate calculated by reference to LIBOR with an interest rate calculated by reference to a new standard that is established.

The Dodd-Frank Act may have a significant impact on our business, results of operation and financial condition.

On July 21, 2010, the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, or the Dodd-Frank Act, was enacted into law. The Dodd-Frank Act, among other things, when fully implemented, will result in substantial changes in the regulation of derivatives and capital market activities. The impact of the Dodd-Frank Act is difficult to assess because many provisions are being phased in over time and because the current Presidential administration has indicated it may make or propose changes to provisions of the Dodd-Frank Act. In particular, the Dodd-Frank Act establishes federal oversight and regulation of the over-the-counter derivatives market and entities that participate in that market. The rules, if enacted in their proposed form, may require us to change any fuel price, currency and interest rate hedging practices we may then use to comply with new regulatory requirements. Potential changes include clearing and execution methodology of our derivatives transactions. Presently, we cannot assess the capital or margin requirements which might apply to our over-the-counter transactions. Once implemented, these changes could result in increased transaction costs. In summary, the Dodd-Frank Act and any new regulations could increase the cost of derivative contracts or modify the way in which we conduct those transactions. Additionally, we are required to pay to the lenders under the 2016 Credit Agreement, any increased costs associated with the Dodd-Frank Act and other changes in laws, rules or regulations, subject to the terms of the 2016 Credit Agreement.

The Dodd-Frank Act also created the CFPB, to regulate the offering of consumer financial products or services under the federal consumer financial laws. The CFPB assumed rulemaking authority under the existing federal consumer financial protection laws, and enforces those laws against and examines certain non-depository institutions and insured depository institutions with total assets greater than $10 billion and their affiliates. In addition, the CFPB was granted general authority to prevent covered persons or service providers from committing or engaging in unfair, deceptive or abusive acts or practices under federal law in connection with any transaction with a consumer for a consumer financial product or service, or the offering of a consumer financial product or service. The CFPB also has broad rulemaking authority for a wide range of consumer protection laws. It is unclear what changes will be promulgated by the CFPB and what effect, if any, such changes would have on our business and operations.

As required under the Dodd-Frank Act, the Government Accountability Office issued its study on the implications of any elimination of the exemption to the definition of “bank” for industrial banks under the Bank Holding Company Act. The study did not make a recommendation regarding the elimination of this exemption. However, if this exemption were eliminated without any grandfathering or accommodations for existing institutions, we could be required to become a bank holding company which could require us to either cease certain activities or divest WEX Bank.

The current U.S. Administration and Congress have signaled their intent to significantly or completely repeal the Dodd-Frank Act and the associated implementing regulations, and it is unclear what, if any, measures may be implemented to replace it. Accordingly, there may be an extended period of uncertainty and unpredictability regarding the provisions of federal law and regulations that affect our business and operations.

The Dodd-Frank Act and any related legislation or regulations, or any repeal or replacement of such legislation or regulations, may have a material impact on our business, results of operations and financial condition. The full impact of the Dodd-Frank Act will not be known until all of the regulations implementing the statute are adopted and implemented. However, compliance with these new laws and regulations may require us to make changes to our business, and, there is a significant possibility that the Dodd-Frank Act will, at a minimum, result in increased regulatory burden and compliance costs. We may be required to invest significant management time and resources to address the various provisions of the Dodd-Frank Act and the numerous regulations that are required to be issued under it, or to address the changed business environment resulting from a repeal of all or part of the Dodd Frank Act and any related legislation or regulation.

Decreased demand for fuel and other vehicle products and services could harm our business and results of operations.

Demand for fuel and other vehicle products and services may be reduced by factors that are beyond our control, such as the implementation of fuel efficiency standards and the development by vehicle manufacturers and adoption by our fleet customers of vehicles with greater fuel efficiency or alternative fuel sources. To the extent that our customers require less fuel, that decline in purchase volume could reduce our revenues, limiting our profitability and preventing us from taking on other initiatives.

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Our business is dependent on several key strategic relationships, the loss of which could adversely affect our results of operations.

Revenue we received from services we provided to our top five customers and strategic relationships accounted for approximately 13 percent of our total revenues in 2018. Accordingly, we are dependent on maintaining our strategic relationships and our results of operations would be lower in the event that any of these relationships ceases to exist. Likewise, we have agreements with the major oil companies, fuel retailers and truck stop merchants whose locations accept our payment processing services. The termination of any of these agreements would reduce the number of locations where our payment processing services are accepted; therefore, we could lose our competitive advantage and our operating results could be adversely affected. While we regularly monitor these relationships, there can be no guarantee that we will be able to maintain them in the future.

We may never realize the anticipated benefits of acquisitions we have completed or may undertake.

We have acquired and may attempt to acquire businesses, technologies, services, products or licenses in technologies that we believe are a strategic fit with our business. The process of integrating and operating any acquired business, technology, service or product may result in unforeseen redundancies, operating difficulties, and expenditures and may divert significant management attention from our ongoing business operations. As a result, we may incur a variety of costs in connection with acquisitions and may never realize the anticipated benefits.

We are exposed to risks associated with operations outside of the United States, which could harm both our U.S. and international operations.

We conduct operations in North America, South America, Asia Pacific and Europe. As part of our business strategy and growth plan, we plan to further expand internationally. Expansion of our international operations could impose substantial burdens on our resources, divert management’s attention from U.S. operations and otherwise harm our business. In addition, there are many barriers to competing successfully in the international market, including:

• fluctuation in foreign currencies;

• changes in the relations between the United States and foreign countries;

• actions of foreign or United States governmental authorities affecting trade and foreign investment;

• increased infrastructure costs including complex legal, tax, accounting and information technology laws and treaties;

• interpretation and application of local laws and regulations including, among others, those impacting anti-money laundering, bribery, financial transaction reporting, privacy and positive balance or prepaid cards;

• enforceability of intellectual property and contract rights;

• potentially adverse tax consequences due to, but not limited to, the repatriation of cash and negative consequences from changes in or interpretations of tax laws

• competitive pressure on products and services from companies based outside the U.S. that can leverage lower costs of operations;

• the United Kingdom’s decision in a June 23, 2016 referendum to leave the European Union (EU) (commonly referred to as “Brexit”); and

• local labor conditions and regulations.

We cannot assure you that our investments outside the United States will produce desired levels of revenue or costs, or that one or more of the factors listed above will not harm our business.

The United Kingdom’s departure from the EU, or Brexit, could adversely affect us.

In connection with Brexit, in March 2017, the U.K. government initiated the exit process which commenced a two-year period expiring on March 29, 2019, after which time the U.K. is expected to leave the EU in the absence of any effective extension of the negotiation period. Although political negotiations are underway, there is a lack of understanding about the terms of the U.K.’s exit from the EU and the terms of the U.K.’s future relationship with the EU. The U.K.’s

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financial service regulators are implementing interim regimes under which companies may continue to conduct business in the U.K. if the U.K. exits the EU without an agreement but their impact on us remains uncertain.

Although the circumstances surrounding Brexit remain unclear, Brexit could adversely affect U.K., regional (including European), and worldwide economic and market conditions and could contribute to instability in global financial and foreign exchange markets, including volatility in the value of the British Pound Sterling and Euro, which in turn could adversely affect us or our customers and companies that do business with us. Brexit could also trigger a general deterioration in credit conditions, a downturn in consumer sentiment and overall negative economic growth. Any of these scenarios could have an adverse effect on our business or our customers.

In addition, Brexit could lead to legal uncertainty and increased complexity as national laws and regulations in the U.K. start to diverge from EU laws and regulations. In particular, depending on the terms of Brexit, we may face new regulatory costs and challenges, including the following:

• if we are unable to utilize appropriate authorizations and regulator permissions, our U.K. and EU-based operations could lose their ability to offer services on a cross-border basis into the U.K. market and for our U.K. based operations to offer services on a cross-border basis in the EU market;

• we could be required to obtain additional regulatory permissions to operate in the U.K. and EU market, adding costs and potential inconsistency to our business (and, depending on the capacity of the U.K. authorities, the criteria for obtaining permission, and any possible transitional arrangements, there is a risk that our business in the U.K. could be materially affected or disrupted);

• we could be required to comply with regulatory requirements in the U.K. that are in addition to, or inconsistent with, the regulatory requirements of the EU, leading to increased complexity and costs for our EU and U.K. operations; and

• our ability to attract and retain the necessary human resources in appropriate locations to support the U.K. business and the EU business could be adversely impacted.

These and other factors related to Brexit could, individually or in the aggregate, have a material adverse impact on our business, financial condition, and results of operations.

New laws, regulations and enforcement activities could negatively impact our business and the markets we presently operate in or could limit our expansion opportunities.

Our operations are subject to substantial regulation both domestically and internationally. There are often new regulatory efforts which could result in significant constraints and may impact our operations. These existing and emerging regulations can make the expansion of our business very difficult and negatively impact our revenue. Among the regulations that impact us or could impact us are those governing: interchange rates; interest rate and fee restrictions; credit access and disclosure requirements; collection and pricing requirements; compliance obligations; data security and data breach requirements; identity theft avoidance programs; health care mandates; and anti-money laundering compliance programs. We also often must obtain permission to conduct business in new locations from government regulators. Changes to these regulations, including expansion of consumer-oriented regulation to business-to-business transactions, could negatively impact our operations, financial condition and results of operations and could further increase our compliance costs and limit our ability to expand to new markets.

We also conduct business with other highly regulated businesses such as banks, payment card issuers, and health insurance providers. These industries are subject to significant potential reforms that could negatively affect these businesses, their ability to maintain or expand their products and services, and the costs associated with doing so. These developments could also negatively impact our business.

Laws or regulations developed in one jurisdiction or for one product could result in new laws or regulations in other jurisdictions or for other products.

Regulators often monitor other approaches to the governance of the payment industry. As a result, a law or regulation enacted in one jurisdiction could result in similar developments in another. In addition, law and regulation involving one product could influence the extension of regulations to other product offerings.

The expansion of certain regulations could negatively impact our business in other geographies or for other products. Rules and regulations concerning interchange and business operations regulations, for example, may differ from country to country which adds complexity and expense to our operations.

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These varying and increasingly complex regulations could limit our ability to globalize our products and could significantly and adversely affect our business, financial condition and results of operations.

Regulations and industry standards intended to protect or limit access to personal information could adversely affect our ability to effectively provide our services.

Governmental bodies in the United States and abroad have adopted, or are considering the adoption of, laws and regulations restricting the transfer of, and requiring safeguarding of, non-public personal information. For example, in the United States, all financial institutions must undertake certain steps to ensure the privacy and security of consumer financial information. In Europe, the adoption of General Data Protection Regulation (commonly referred to as GDPR) also requires additional privacy protections. In connection with providing services to our clients, we are required by regulations and arrangements with payment networks and certain clients to provide assurances regarding the confidentiality and security of non-public consumer information. These arrangements require periodic audits by independent companies regarding our compliance with industry standards such as payment card industry, or PCI, standards and also allow for similar audits regarding best practices established by regulatory guidelines. The compliance standards relate to our infrastructure and operational procedures designed to safeguard the confidentiality and security of non-public consumer personal information received from our customers. Our ability to maintain compliance with these standards and satisfy these audits will affect our ability to attract and maintain business in the future. If we fail to comply with these regulations, we could be exposed to suits for breach of contract or to governmental proceedings. In addition, our client relationships and reputation could be harmed, and we could be inhibited in our ability to obtain new clients. If more restrictive privacy laws or rules are adopted by authorities in the future on the federal or state level, our compliance costs may increase, our opportunities for growth may be curtailed by our compliance capabilities or reputational harm and our potential liability for security breaches may increase, all of which could have a material adverse effect on our business, financial condition and results of operations.

Changes in our tax rates, the adoption of new U.S. or international tax legislation or exposure to additional tax liabilities could affect our future results.

We are subject to taxes in the U.S. and numerous foreign jurisdictions. Our future effective tax rates could be affected by changes in the mix of earnings in countries with differing statutory tax rates, changes in the valuation of deferred tax assets and liabilities, or changes in tax laws or their interpretation. Any of these changes could have a material adverse effect on our profitability. For example, the 2017 Tax Act enacted in December 2017 had a significant impact on our tax obligation and effective tax rate for the fourth quarter of 2017. We are also subject to the examination of our income tax returns by the Internal Revenue Service and other tax authorities. We regularly assess the likelihood of adverse outcomes resulting from these examinations to determine the adequacy of our provision for taxes. There can be no assurance that the outcomes from these examinations will not materially adversely affect our financial condition and operating results.

We urge our stockholders to consult with their legal and tax advisors with respect to this legislation and the potential tax consequences of investing in or holding our common stock.

The healthcare industry changes often and technology-enabled services used by consumers are relatively new and unproven.

The market for technology-enabled services for healthcare consumers changes rapidly and new products and services are consistently being introduced. Opportunities to gain market share are challenging due to the significant resources of our existing and potential competitors. It is uncertain whether or how fast this market will continue to grow. In order to remain competitive, we are continually involved in a number of projects to develop new services or compete with these new market entrants, including the development of mobile versions of our proprietary technology platform. These projects carry risks, such as cost overruns, delays in delivery, performance problems and lack of acceptance by our customers.

Based on our experience, consumers are still learning about health savings accounts, which are often referred to as HSAs, and other similar tax-advantaged healthcare savings arrangements. The willingness of consumers to increase their use of technology platforms to manage their healthcare saving and spending tax advantaged benefits will impact our operating results.

We may incur impairment charges on goodwill or other intangible assets.

We account for goodwill in accordance with Financial Accounting Standards Board, which is often referred to as FASB, Accounting Standard Codification Topic 350, Intangibles—Goodwill and Other. Our reporting units and related indefinite-lived intangible assets are tested annually during the fourth fiscal quarter of each year in order to determine whether their carrying value exceeds their fair value. In addition, they are tested on an interim basis if an event occurs or

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circumstances change between annual tests that would more likely than not reduce their fair value below carrying value. If we determine the fair value of the goodwill or other indefinite-lived intangible assets is less than their carrying value as a result of the tests, an impairment loss is recognized. Any such write-down would adversely affect our results of operations.

Our goodwill resides in multiple reporting units. The profitability of individual reporting units may suffer periodically from downturns in customer demand and other factors, the high level of competition existing within our industry, and the level of overall economic activity. Individual reporting units may be relatively more impacted by these factors than the Company as a whole. As a result, demand for the services of one or more of the reporting units could decline which could adversely affect our operations and cash flow, and could result in an impairment of goodwill or intangible assets. As a result of our annual impairment analyses during the fourth quarter of fiscal 2018, it was determined that an impairment had occurred, resulting in a $3.2 million impairment recorded on one of our reporting units. See Note 9, Goodwill and Other Intangible Assets, for more information. For all reporting units, we use a discounted cash flow model of the projected earnings of reporting units to determine the amount of goodwill impairment. While we currently believe that the fair value of all of our intangibles substantially exceeds carrying value and that those intangibles so classified will contribute indefinitely to the cash flows of the Company, materially different assumptions regarding future performance of our reporting units or the weighted-average cost of capital used in the valuations could result in impairment losses and/or additional amortization expense.

If our industrial bank subsidiary fails to meet certain criteria, we may become subject to regulation under the Bank Holding Company Act, which could force us to divest WEX Bank or cease all of our non-banking activities, which could have an adverse effect on our revenue and business or could create a default under our 2016 Credit Agreement.

WEX Bank meets the criteria for exemption of an industrial bank from the definition of “bank” under the Bank Holding Company Act. WEX Bank’s failure to qualify for this exemption would cause us to become subject to regulation under the Bank Holding Company Act. This would require us to divest WEX Bank or become a Bank Holding Company and to possibly cease certain non-banking activities which may be impermissible for a Bank Holding Company, and could create a default under our 2016 Credit Agreement. Failure to qualify for this exemption could thus have an adverse effect on our revenue and business.

The loss or suspension of the charter for our Utah industrial bank or changes in regulatory requirements could be disruptive to operations and increase costs.

The regulatory status of WEX Bank enables it to issue certificates of deposit, accept money market deposits and borrow on federal funds lines of credit from other banks. These funds are used to support our operations. WEX Bank operates under a uniform set of state lending laws, and its operations are subject to extensive state and federal regulation. WEX Bank, a Utah industrial bank incorporated in 1998, is an FDIC-insured depository institution. The bank’s primary regulators are the Utah DFI and the FDIC. Continued licensing and federal deposit insurance are subject to ongoing satisfaction of compliance and safety and soundness requirements. If WEX Bank were to lose its bank charter, we would either outsource our credit support activities or perform these activities ourselves, which would subject us to the credit laws of each individual state in which we conduct business. Furthermore, we could not be a MasterCard and/or Visa issuer and would have to work with another financial institution to issue the product or sell the portfolio. Any such change would be disruptive to our operations and could result in significant incremental costs. In addition, changes in the bank regulatory environment, including the implementation of new or varying measures or interpretations by the State of Utah or the federal government, may significantly affect or restrict the manner in which we conduct business in the future or could create a default under our 2016 Credit Agreement.

We are subject to extensive supervision and regulation that could restrict our activities and impose financial requirements or limitations on the conduct of our business and limit our ability to generate income.

We are subject to extensive federal and state regulation and supervision, including that of the FDIC, the CFPB, and the Utah DFI. Banking regulations are primarily intended to protect depositors’ funds, federal deposit insurance funds and the banking system as a whole, not shareholders or noteholders. These regulations affect our payment operations, capital structure, investment practices, dividend policy and growth, among other things. Failure to comply with laws, regulations or policies could result in sanctions by regulatory agencies, damages, civil money penalties or reputational damage, which could have a material adverse effect on our business, financial condition and results of operations. While we have policies and procedures designed to prevent any such violations, there can be no assurance that such violations will not occur. The U.S. Congress and federal regulatory agencies frequently revise banking and securities laws, regulations and policies. We cannot predict whether or in what form any other proposed regulations or statutes will be adopted or the extent to which our business may be affected by any new regulation or statute. Such changes could subject our business to additional costs, limit

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the types of financial services and products we may offer and increase the ability of non-banks to offer competing financial services and products, among other things.

Our industrial bank subsidiary is subject to regulatory capital requirements that may require us to make capital contributions to this subsidiary, and that may restrict the ability of the subsidiary to make cash available to us.

WEX Bank must maintain minimum amounts of regulatory capital. If WEX Bank does not meet these capital requirements, its regulators have broad discretion to institute a number of corrective actions that could have a direct material effect on our financial condition. WEX Bank, as an institution insured by the FDIC, must maintain certain capital ratios, paid-in capital minimums and adequate allowances for loan losses. Under the Dodd-Frank Act, we are also required to serve as a source of financial strength for WEX Bank. If WEX Bank were to fail to meet any of the capital requirements to which it is subject, or if required under Dodd-Frank’s source of strength requirements, we may be forced to provide WEX Bank with additional capital, which could impair our ability to service our indebtedness or may not be permitted under the terms of our 2016 Credit Agreement or Notes. To pay any dividend, WEX Bank must maintain adequate capital above regulatory guidelines. Accordingly, WEX Bank may be unable to make any of its cash or other assets available to us, including to service our indebtedness.

We are subject to limitations on transactions with our industrial bank subsidiary, which may limit our ability to engage in transactions with and obtain credit from our industrial bank.

Sections 23A and 23B of the FRA and the implementing regulations limit the extent to which we can borrow or otherwise obtain credit from or engage in other “covered transactions” with WEX Bank. “Covered transactions” include loans or extensions of credit, purchases of or investments in securities, purchases of assets, including assets subject to an agreement to repurchase, acceptance of securities as collateral for a loan or extension of credit, or the issuance of a guarantee, acceptance, or letter of credit. Although the applicable rules do not serve as an outright ban on engaging in “covered transactions,” they do limit the amount of covered transactions WEX Bank may have with any one affiliate and with all affiliates in the aggregate. The applicable rules also require that we engage in such transactions with WEX Bank only on terms and under circumstances that are substantially the same, or at least as favorable to WEX Bank, as those prevailing at the time for comparable transactions with nonaffiliated companies. Furthermore, with certain exceptions, each loan or extension of credit by WEX Bank to the Company or its other affiliates must be secured by collateral with a market value ranging from 100 percent to 130 percent of the amount of the loan or extension of credit, depending on the type of collateral. Accordingly, WEX Bank may be unable to provide credit or engage in transactions with us, including transactions intended to help us service our indebtedness.

If the technologies we use in operating our business and interacting with our customers fail, are unavailable, or do not operate to expectations, or we fail to successfully implement technology strategies and capabilities in connection with our outsourcing arrangements, our business and results of operation could be adversely impacted.

We utilize a combination of proprietary and third-party technologies, including third-party owned and operated "cloud" technologies, to conduct our business and interact with our customers, partners and suppliers, among others. This includes technology that we have developed, have contracted with others to develop, have outsourced to a single provider to operate or have obtained through third-parties by way of service agreements. To the extent that our proprietary technology or a third-party providers’ technology does not work as agreed to or as expected, or if we experience outages or unavailability resulting from their operations and the services they provide to us, our ability to efficiently and effectively deliver services could be adversely impacted and our business and results of operations could be adversely affected. Similarly, any failure by our customers or partners to access the technology that we develop internally could have an adverse effect on our business, results of operations and financial condition. Although we make substantial investments in technology, there is no guarantee that it will function as intended once it is placed into operation. Lastly, given our reliance on technology, we regularly assess our technology plans, including both platforms and technology infrastructure. To the extent that we conclude that certain technologies should be retired, that existing platforms should be consolidated, or that we should change our technology strategies, we may be required to impair or accelerate depreciation on certain assets. Any of these potential changes or failures in our technology strategies may also divert management’s attention and have a material adverse effect on our business and results of operations.

Our business is regularly subject to cyberattacks and attempted security and privacy breaches and we may not be able to adequately protect our information systems, including the data we collect about our customers, which could subject us to liability and damage our reputation.

We collect and store data about our customers and their fleets, including bank account information and spending data. Our customers expect us to keep this information in our confidence. In certain instances, the information we collect includes social security numbers. As a result of applicable laws, we are required to take commercially reasonable measures

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to prevent and mitigate the impact of cyberattacks, as well as the unauthorized access, acquisition, release and use of “personally identifiable information,” such as social security numbers. While social security numbers constitute a very small part of the data we keep, in the event of a security breach we would be required to determine the types of information compromised and determine corrective actions and next steps under applicable laws, which would require us to expend capital and other resources to address the security breach and protect against future breaches. An increasing number of organizations, including large on-line and off-line merchants and businesses, large Internet companies, financial institutions, and government institutions, have disclosed breaches of their information security systems, some of which have involved sophisticated and highly targeted attacks, including on portions of their websites or infrastructure. Like those companies, we too, are subject to regular and repeated attempts to breach our information security protections.

As outsourcing, specialization of functions, third-party digital services and technology innovation within the payments industry increase (including with respect to mobile technologies, tokenization, big data and cloud storage solutions), more third parties are involved in processing card transactions and there is a risk the confidentiality, integrity, privacy and/or security of data held by, or accessible to, third parties, including merchants that accept our cards, payment processors and our business partners, may be compromised, which could lead to unauthorized transactions on our cards and costs associated with responding to such an incident. In addition, high profile data breaches could change consumer behaviors, impact our ability to access data to make product offers and credit decisions and result in legislation and additional regulatory requirements.

The techniques used in attempts to obtain unauthorized, improper or illegal access to our systems, our data or our customers’ data, to degrade service, or to sabotage our systems are constantly evolving, are difficult to detect quickly, and may not be recognized until after a successful penetration of our information security systems. Unauthorized parties attempt to gain access to our systems or facilities through various means, including, among others, targeting our systems or facilities or our third-party vendors or customers, or attempting to fraudulently induce our employees, partners, customers or others into disclosing user names, passwords, payment card information, or other sensitive information, which may in turn be used to access our information technology systems. Certain efforts may be state-sponsored and supported by significant financial and technological resources, making them even more difficult to detect. Like many companies, we are a target for such breaches and attacks. Although we have developed systems and processes that are designed to protect our data and customer data and to prevent data loss and other security breaches, and will continue to expend significant additional resources to bolster these protections, these security measures cannot provide absolute security. Our information technology and infrastructure may be vulnerable to successful cyberattacks or security breaches, and third parties may be able to access our customers’ personal or proprietary information and data that are stored on or accessible through those systems.

Our security measures may also be breached due to employee error, malfeasance, system errors or vulnerabilities, or other irregularities. Any actual or perceived breach of our security could interrupt our operations; result in our systems or services being unavailable; result in improper disclosure of data; materially harm our reputation and brand; result in significant legal and financial exposure; lead to loss of customer confidence in, or decreased use of, our products and services; and, adversely affect our business and results of operations. Any breaches of network or data security at our partners, some of whom maintain information about our customers, or breaches of our customers’ systems could have similar effects. In addition, our customers could have vulnerabilities on their own computer systems that are entirely unrelated to our systems, but could mistakenly attribute their own vulnerabilities to us. While we take commercially appropriate steps to safeguard data used by and contained on the systems of our partners, customers and vendors, we cannot control all access to those systems and they are therefore subject to potential cyberattacks and fraud.

Furthermore, as we have increased the number of platforms as well as the size of our networks and information systems, our reliance on these technologies have become increasingly important to our operating activities. The potential negative impact that a platform, network or information system shutdown may have on our operating activities has increased. Shutdowns may be caused by cyberattacks and unexpected catastrophic events such as natural disasters or other unforeseen events, such as software or hardware defects or cyber-attacks by groups or individuals.

Under the Financial Services Modernization Act of 1999, also referred to as the “Gramm-Leach-Bliley Act” or GLBA, and some state laws, we and WEX Bank are required to maintain a comprehensive written information security program that includes administrative, technical and physical safeguards relating to consumer information. This requirement generally does not extend to information about companies or about individuals who obtain financial products or services for business, commercial, or agricultural purposes.

The GLBA also requires us and WEX Bank to provide initial and annual privacy notices to customers that describe in general terms our information sharing practices. If we or WEX Bank intend to share nonpublic personal information about consumers with affiliates and/or nonaffiliated third parties, we and WEX Bank must provide customers with a notice

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and a reasonable period of time for each customer to “opt out” of any such disclosure. In addition to U.S. federal privacy laws with which we must comply, states also have adopted statutes, regulations and other measures governing the collection and distribution of nonpublic personal information about customers. In some cases these state measures are preempted by federal law, but if not, we and WEX Bank must monitor and seek to comply with individual state privacy laws in the conduct of our businesses.

When we handle individually identifiable health information, regulations issued under Health Insurance Portability and Accountability Act of 1996, or HIPAA, and the Health Information Technology for Economic and Clinical Health Act, or HITECH, our contracts with our customers, and supplemental state laws require us to implement privacy and data security measures and to comply with breach notification requirements. We may be subject to contractual damages and civil or criminal penalties if we are found to violate these privacy, security and breach notification requirements.

Our efforts to comply with existing and future health and financial data laws and regulations, both in the U.S. and abroad, is costly and time-consuming. Incidents involving our handling of this protected and sensitive information may consume significant financial and managerial resources and may damage our reputation, which may discourage customers from using, renewing, or expanding their use of our services.

Any security breach, inadvertent transmission of information about our customers, failure to comply with applicable breach notification and reporting requirements, or any violation of international, federal or state privacy laws could expose us to liability in excess of any applicable insurance policies, litigation, regulatory scrutiny, and/or cause damage to our reputation. We may also be required to expend significant resources to implement additional data protection measures or to modify the features and functionality of our system offerings in a way that is less attractive to customers.

Our failure to effectively implement new technology could jeopardize our position as a leader in our industry.

As a provider of information management and payment processing services, we must constantly adapt and respond to the technological advances offered by our competitors and the informational requirements of our customers, including those related to the Internet, in order to maintain and improve upon our competitive position. We may not be able to expand our technological capabilities and service offerings as rapidly as our competitors, which could jeopardize our position as a leader in our industry.

We are dependent on technology systems and electronic communications networks managed by third parties, which could result in our inability to prevent service disruptions.

Our ability to process and authorize transactions electronically depends on our ability to electronically communicate with our fuel and vehicle maintenance providers through point-of-sale devices and electronic networks that are owned and operated by third parties. The electronic communications networks upon which we depend are often subject to disruptions of various magnitudes and durations. Any severe disruption of one or more of these networks could impair our ability to authorize transactions or collect information about such transactions, which, in turn, could harm our reputation for dependable service and adversely affect our results of operations. In addition, our ability to collect enhanced data relating to our customers’ purchases may be limited by the use of older point-of-sale devices by fuel and vehicle maintenance providers. To the extent that fuel and vehicle maintenance providers within our network are slow to adopt advanced point-of-sale devices, we may not be able to offer the latest services and capabilities that our customers demand.

Our industry continues to become increasingly competitive, which makes it more challenging for us to maintain profit margins at historical levels.

We face and expect to continue to face competition in each category of the overall industry from several companies that seek to offer competing capabilities and services. Historically, we have been able to provide customers with a wide spectrum of services and capabilities and, therefore, we have not considered price to be the exclusive or even the primary basis on which we compete. As our competitors have continued to develop their service offerings, it has become increasingly more challenging for us to compete solely on the basis of superior capabilities, technology, customer integration or service. In some areas of our business we have been forced to respond to competitive pressures by reducing our fees. We have seen erosion of our historical profit margins as we encourage existing strategic relationships to sign long-term contracts. If these trends continue and if competition intensifies, our profitability may be adversely impacted.

While we have traditionally offered our services to several categories of the payments industry, with a focus on fleet, corporate payments and health in recent years, some of our competitors have successfully garnered significant share in particular categories of payments. To the extent that our competitors are regarded as leaders in specific categories, they may have an advantage over us as we attempt to further penetrate these categories.

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We also face increased competition in our efforts to enter into new strategic relationships and renew existing strategic relationships on similar terms.

Compliance with anti-money laundering laws and regulations creates additional compliance costs and reputational risk.

We must monitor and report unusual or suspicious account activity, as well as transactions involving amounts in excess of prescribed limits, as required by the Bank Secrecy Act and Internal Revenue Service regulations and other regulations. The USA PATRIOT Act of 2001 imposes significant anti-money laundering compliance and due diligence obligations on financial institutions, including WEX Bank. Financial regulators have issued various implementing regulations and have made enforcement a top priority. Failure to maintain and implement adequate programs to combat money laundering and terrorist financing, or to comply with all of the relevant laws or regulations, could result in the imposition of fines or penalties and other serious legal and reputational consequences which may impact our financial results.

Evolution and expansion of our business may subject us to additional regulatory requirements and other risks, for which failure to comply or adapt could harm our operating results.

The evolution and expansion of our business may subject us to additional risks and regulatory requirements, including laws governing money transmission and payment processing services. These requirements vary throughout the markets in which we operate, and have increased over time as the geographic scope and complexity of our payments product services have expanded. While we maintain a compliance program focused on applicable laws and regulations throughout the payments industry, there is no guarantee that we will not be subject to fines, criminal and civil lawsuits or other regulatory enforcement actions in one or more jurisdictions, or be required to adjust business practices to accommodate future regulatory requirements.

In order to maintain flexibility in the growth and expansion of our payments operations, we have obtained money transmitter licenses (or their equivalents) in several states and expect to continue the license application process in additional jurisdictions throughout the United States as needed to accommodate new product development. Our efforts to acquire and maintain these licenses could result in significant management time, effort, and cost, and may still not guarantee compliance given the constant state of change in these regulatory frameworks. Accordingly, costs associated with changes in compliance requirements, regulatory audits, enforcement actions, reputational harm, or other regulatory limits on our ability to grow our payment processing business could adversely affect our financial results.

Our increased presence in foreign jurisdictions increases the possibility of foreign law violations or violation of the U.S. Foreign Corrupt Practices Act (“FCPA”), the United Kingdom Bribery Act of 2010 (“UKBA”) and the Brazilian Anti-Corruption Law (“ACL”).

We are subject to the FCPA, the ACL and the UKBA, as we own subsidiaries organized under UK and Brazilian law, which serve as a holding companies for other subsidiaries. While the FCPA generally prohibits U.S. companies and their intermediaries from making improper payments to foreign officials for the purpose of obtaining or retaining business, the UKBA is broader in its reach and prohibits bribery in purely commercial contexts. Any violation of the FCPA, the UKBA or similar laws and regulations, including the ACL, could result in significant expenses, divert management attention, and otherwise have a negative impact on us. Any determination that we have violated the FCPA, UKBA, ACL or laws of any other jurisdiction could subject us to, among other things, penalties and legal expenses that could harm our reputation and have a material adverse effect on our financial condition and results of operation. The possibility of violations of the FCPA, UKBA, ACL or similar laws or regulations may increase as we expand globally and into countries with recognized corruption problems.

The failure to maintain effective systems of internal control over financial reporting and disclosure controls and procedures could result in the inability to accurately report our financial results or prevent material misstatement due to fraud, which could cause current and potential shareholders to lose confidence in our financial reporting, adversely affect the trading price of our securities, harm our operating results or trigger a default under the 2016 Credit Agreement.

Effective internal control over financial reporting and disclosure controls and procedures are necessary for us to provide reliable financial reports and effectively prevent fraud and operate successfully as a public company. The failure to develop or maintain effective internal control over financial reporting and disclosure controls and procedures could harm our reputation or operating results, or cause us to fail to meet our reporting obligations, or trigger a default under the 2016 Credit Agreement.

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Our financial reporting and disclosure controls and procedures are reliant, in part, on information we receive from disparate internal financial reporting systems and third parties that supply information to us regarding transactions that we process. In addition, because our strategy includes pursuing growth through acquisitions of other businesses, which are at different levels of maturity and which may have underdeveloped financial reporting systems and processes, we depend on dispersed financial systems to process, summarize and report financial transactions for our distributed operations. To the extent these systems do not properly transmit information to our financial ledgers, we could fail to properly summarize and report financial results.

As we expand our business operations domestically and internationally, and as we implement new accounting standards promulgated by the Financial Accounting Standards Board, we will need to maintain effective internal control over financial reporting and disclosure controls and procedures. If we are unable to do so, our external auditors could issue a qualified opinion on the effectiveness of our internal control over financial reporting.

Ineffective internal control over financial reporting and disclosure controls and procedures could cause investors to lose confidence in our reported financial information, which could have a negative effect on the trading price of our securities or affect our ability to access the capital markets and could result in regulatory proceedings against us by, among others, the SEC. In addition, a material weakness in internal control over financial reporting may lead to deficiencies in the preparation of financial statements, which in turn could lead to litigation claims against us. The defense of any such claims may cause the diversion of management’s attention and resources, and we may be required to pay damages if any such claims or proceedings are not resolved in our favor. Any litigation, even if resolved in our favor, could cause us to incur significant legal and other expenses. Such events could also affect our ability to raise capital to fund future business initiatives.

We have identified material weaknesses in our internal control over financial reporting, and if we are unable to remediate such material weaknesses and to maintain effective internal control over financial reporting in the future, there could be an elevated possibility of a material misstatement, and such a misstatement could cause investors to lose confidence in our financial statements, which could have a material adverse effect on our stock price.

We are required, pursuant to Section 404 of the Sarbanes-Oxley Act, to furnish a report by management on the effectiveness of our internal control over financial reporting. In addition, our independent registered public accounting firm must report on its evaluation of our internal control over financial reporting. As disclosed in Item 9A of this report, we have identified material weaknesses as of December 31, 2018 in our internal control over financial reporting because we did not maintain an effective control environment at our Brazilian subsidiary, we did not have control activities that were designed and operating effectively at our Brazilian subsidiary and we did not have sufficient monitoring activities in place to ensure effective corporate oversight and monitoring of control activities at our individually insignificant subsidiaries. As a result of these material weaknesses, our external auditors have issued a qualified opinion indicating that we have not maintained effective internal control over financial reporting as of December 31, 2018.

Our management team has taken action to begin to remediate these material weaknesses, but we cannot be certain when the remediation will be completed. If we fail to fully remediate the material weaknesses or fail to maintain effective internal controls, it could result in a material misstatement of our financial statements, which could cause investors to lose confidence in our financial statements or cause our stock price to decline. These material weaknesses could also impact our ability to attract and retain new customers. In future periods, we may identify additional deficiencies in our system of internal control over financial reporting during the course of our remediation efforts that may require additional work to address. The generally manual nature of certain of our controls and those of companies we have acquired, as well as the age of our legacy systems increase our risk of control deficiencies. In addition, future acquisitions may present challenges in implementing appropriate and sustainable internal controls. Any future material weaknesses in internal control over financial reporting could result in material misstatements in our financial statements. Moreover, any future disclosures of additional weaknesses, or errors as a result of those weaknesses, could result in a negative reaction in the financial markets if there is a loss of confidence in the reliability of our financial reporting.

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Our ability to attract and retain qualified employees is critical to our success and the failure to do so may materially adversely affect our performance.

We believe our employees, including our executive management team, are our most important resource and, in our industry and geographic area, competition for qualified personnel is intense. If we were unable to retain and attract qualified employees, our performance could be materially adversely affected.

Risks Relating to Our Common Stock

If any entity controls 10 percent or more of our common stock and such entity has caused a violation of applicable banking laws by its failure to obtain any required approvals prior to acquiring that common stock, we have the power to, and may be required to, restrict such entity’s ability to vote shares held by it.

As owners of a Utah industrial bank, we are subject to Utah banking regulations that require any entity that controls 10 percent or more of our common stock to obtain the prior approval of Utah banking authorities. Federal law also prohibits a person or group of persons from acquiring “control” of us unless the FDIC has been notified and has not objected to the transaction. Under the FDIC’s regulations, the acquisition of 10 percent or more of a class of our voting stock would generally create a rebuttable presumption of control. In addition, our certificate of incorporation requires that if any stockholder fails to provide us with satisfactory evidence that any required approvals have been obtained, we may, or will if required by state or federal regulators, restrict such stockholder’s ability to vote such shares with respect to any matter subject to a vote of our stockholders.

As a result of these regulatory requirements, certain existing and potential stockholders may choose not to invest or invest more in our stock. This could limit the number of potential investors and impact our ability to attract further funds.

Provisions in our charter documents, Delaware law and applicable banking law may delay or prevent our acquisition by a third party.

Our certificate of incorporation and by-laws contain several provisions that may make it more difficult for a third party to acquire control of us without the approval of our board of directors. These provisions include, among other things, a classified board of directors, the elimination of stockholder action by written consent, advance notice for raising business or making nominations at meetings of stockholders and “blank check” preferred stock. Blank check preferred stock enables our board of directors, without stockholder approval, to designate and issue additional series of preferred stock with such special dividend, liquidation, conversion, voting or other rights, including the right to issue convertible securities with no limitations on conversion, and rights to dividends and proceeds in a liquidation that are senior to the common stock, as our board of directors may determine. These provisions may make it more difficult or expensive for a third party to acquire a majority of our outstanding voting common stock. We also are subject to certain provisions of Delaware law, which could delay, deter or prevent us from entering into an acquisition, including Section 203 of the Delaware General Corporation Law, which prohibits a Delaware corporation from engaging in a business combination with an interested stockholder unless specific conditions are met. These provisions also may delay, prevent or deter a merger, acquisition, tender offer, proxy contest or other transaction that might otherwise result in our stockholders receiving a premium over the market price for their common stock.

In addition, because we own a Utah industrial bank, any purchaser of our common stock who would own 10 percent or more of our common stock after such purchase would be required to obtain the consent of Utah banking authorities and the federal banking authorities prior to consummating any such acquisition. These regulatory requirements may preclude or delay the purchase of a relatively large ownership stake by potential investors.

ITEM 1B. UNRESOLVED STAFF COMMENTS

None.

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ITEM 2.  PROPERTIES

All of our facilities are leased. The following table presents the details of our principal leased properties as of December 31, 2018:

Property location	Square footage	Purpose of leased property	Segment
South Portland, Maine	217,200	Corporate headquarters, operations center and warehouse	All
Midvale, Utah	12,400	Bank operations	Fleet Solutions, Travel and Corporate Solutions
Melbourne, Australia	16,100	Australia fuel and prepaid card operations	Fleet Solutions, Travel and Corporate Solutions
São Paulo, Brazil	19,200	Brazil fuel, virtual and paycard operations	All
Crewe, England	14,700	European fuel operations	Fleet Solutions
Fargo, North Dakota	70,400	WEX Health operations	Health and Employee Benefit Solutions
Nashville, Tennessee	42,500	EFS Operations	Fleet Solutions, Travel and Corporate Solutions

As of December 31, 2018, construction was being finalized on a new 90,000 square foot corporate headquarters in Portland, Maine. Certain employees, including certain members of executive management, began occupying this facility in February 2019.

Additional financial information about our leased facilities appears in Item 8 – Note 19, Commitments and Contingencies, of our consolidated financial statements.

ITEM 3. LEGAL PROCEEDINGS

As of the date of this filing, we are not involved in any material legal proceedings. We also were not involved in any material legal proceedings that were terminated during the fourth quarter of 2018. From time to time, we are subject to legal proceedings and claims in the ordinary course of business, including but not limited to: commercial disputes; contract disputes; employment litigation; disputes regarding our intellectual property rights; alleged infringement or misappropriation by us of intellectual property rights of others; and, matters relating to our compliance with applicable laws and regulations. As of the date of this filing, the current estimate of a reasonably possible loss contingency from all legal proceedings is not material to the Company's consolidated financial position, results of operations, cash flows or liquidity.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

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PART II

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Market Information

The principal market for the Company’s common stock is the NYSE and our ticker symbol is WEX. As of March 12, 2019, the closing price of our common stock was $176.44 per share, there were 43,135,385 shares of our common stock outstanding and there were 8 holders of record of our common stock. The actual number of stockholders is greater than this number of record holders and includes stockholders who are beneficial owners but whose shares are held in street name by brokers or nominees.

Dividends

The Company has not declared any dividends on its common stock since it commenced trading on the NYSE on February 16, 2005. The timing and amount of future dividends, if any, will be (i) dependent upon the Company’s results of operations, financial condition, cash requirements and other relevant factors, (ii) subject to the discretion of the Board of Directors of the Company and (iii) payable only out of the Company’s surplus or current net profits in accordance with the General Corporation Law of the State of Delaware.

The Company has certain restrictions on the dividends it may pay under its revolving credit agreement, including pro forma compliance with a ratio of consolidated funded indebtedness to consolidated EBITDA of 2.50:1.00 for the most recent period of four fiscal quarters.

Share Repurchases

On September 20, 2017, our board of directors approved a share repurchase program authorizing the purchase of up to $150 million of our common stock, expiring in September 2021. Share repurchases are to be made on the open market and can be commenced or suspended at any time.

We did not purchase any shares of our common stock during the year ended December 31, 2018. The approximate dollar value of shares that were available to be purchased under our share repurchase program was $150 million as of December 31, 2018.

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ITEM 6. SELECTED FINANCIAL DATA

The following table sets forth our summary historical financial information for the periods ended and as of the dates indicated. The summary historical financial information has been changed to reflect the immaterial revision as more fully described in Item 8 – Note 1, Summary of Significant Accounting Policies of our consolidated financial statements. You should read the following historical financial information along with Item 7 and the consolidated financial statements and related notes thereto contained in this Form 10–K. The financial information included in the table below is derived from audited financial statements: 

	December 31,
(in thousands, except per share data)	2018		2017		2016		2015		2014
Income statement information, for the year ended
Total revenues	$	1,492,639	$	1,248,577	$	1,012,488	$	853,949	$	817,905
Total operating expenses	$	1,112,001	$	1,015,154	$	853,963	$	650,155	$	538,443
Financing interest expense	$	105,023	$	107,067	$	113,418	$	46,189	$	36,042
Net realized and unrealized gains on fuel price derivatives	$	—	$	—	$	711	$	5,848	$	46,212
Net income attributable to shareholders	$	168,295	$	160,062	$	23,499	$	76,196	$	174,921
Weighted average basic shares of common stock outstanding	43,156		42,977		40,809		38,771		38,890
Basic income per share	$	3.90	$	3.72	$	0.58	$	1.97	$	4.50
Weighted average diluted shares of common stock outstanding	43,574		43,105		40,914		38,843		39,000
Diluted income per share	$	3.86	$	3.71	$	0.57	$	1.96	$	4.49
Balance sheet information, at end of period
Total assets	$	6,770,595	$	6,688,866	$	5,937,859	$	3,837,171	$	4,095,748
Total liabilities	$	4,974,671	$	5,058,766	$	4,522,969	$	2,786,653	$	3,030,072
Redeemable non-controlling interest	$	—	$	—	$	—	$	—	$	16,590
Total stockholders’ equity	$	1,795,924	$	1,630,100	$	1,414,890	$	1,050,518	$	1,049,086

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ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The discussion below focuses on the factors affecting our consolidated results of operations for the years ended December 31, 2018, 2017 and 2016 and financial condition at December 31, 2018 and 2017 and, where appropriate, factors that may affect our future financial performance, unless stated otherwise. This discussion should be read in conjunction with the consolidated financial statements, notes to the consolidated financial statements and selected consolidated financial data. The 2017 and 2016 amounts have been changed to reflect the immaterial revision as more fully described in Item 8 – Note 1, Summary of Significant Accounting Policies of our consolidated financial statements.

Our Management’s Discussion and Analysis of Financial Condition and Results of Operations, or MD&A is presented in the following sections:

• 2018 Highlights and Year in Review

• Segments

• Results of Operations

• Application of Critical Accounting Policies and Estimates

• New Accounting Standards

• Liquidity, Capital Resources and Cash Flows

2018 Highlights and Year in Review

The following events and accomplishments occurred during 2018:

• Contributions from all three of our segments resulted in the Company reaching approximately $1.5 billion in annual revenues in 2018, 20 percent growth relative to the prior year.

• During October 2018, the Company entered into a definitive asset purchase agreement to acquire Chevron’s existing customer portfolio for approximately $223.4 million, including of $54.6 million for the carrying value of trade accounts receivable. Concurrently with entering into the asset purchase agreement, we modified a number of contract terms, including extending the term of Chevron’s agreement. Conversion of the acquired portfolio onto the Company’s payment processing platform started in the first quarter of 2019.

• During October 2018, the Company entered into a definitive agreement to acquire Noventis, an electronic payments network focused on optimizing payment delivery for bills and invoices to commercial entities, for approximately $310 million. This acquisition will expand our reach as a corporate payments supplier and provide more channels to billing aggregators and financial institutions. The Company closed on this transaction January 24, 2019.

• The Company successfully executed two separate repricings of our 2016 Credit Agreement in 2018, which among other things, increased our availability under the revolving credit facility by $150 million, increased the outstanding amounts under our term loans by $178 million and lowered applicable interest rate margins on both our revolver and term loans. In addition, we extended the maturity on revolving credit facility and term A loans to July 2023.

Our Company’s management believes the following metrics were important to our overall performance in 2018:

• Average number of vehicles serviced increased8 percent from 2017 to approximately 11.8 million for 2018, primarily related to growth in our worldwide customer base. As of December 31, 2018, vehicles serviced totaled 12.4 million.

• Total fuel transactions processed increased7 percent from 2017 to 552.3 million in 2018 due to organic growth. Total payment processing transactions increased7 percent from 2017 to 459.3 million in 2018, and transaction processing transactions also increased7 percent from 2017 to 93.0 million in 2018.

• The average U.S. fuel price per gallon during 2018 was $2.95, an 18 percent increase as compared to the same period in the prior year.

• Credit loss expense in the Fleet Solutions segment decreased8 percent to $54.5 million during 2018, as compared to $59.3 million during 2017. Spend volume increased22 percentin 2018 as compared to 2017. Our credit losses were 12.5 basis points of fuel expenditures for 2018, as compared to 17.2 basis points of fuel expenditures for

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2017, a decrease of 27 percent primarily due to lower incidences of magnetic stripe card skimming fraud as compared to 2017.

• Our Travel and Corporate Solutions purchase volume grew to $34.7 billion in 2018, a 14 percentincrease from 2017, primarily due to strong growth globally driven by strong performance in both our travel and corporate payment products.

• Health and Employee Benefit Solutions average number of SaaS accounts in the U.S. grew 20% to 11.0 million in 2018 from 9.2 million in 2017. Likewise, U.S. purchase volume grew by $497.1 million in 2018, a 12 percent increase as compared to 2017.

• Our effective tax rate was 28.9 percent for 2018 as compared to 8.9 percent for 2017. The lower tax rate in 2017 was primarily due to the reduction of our net deferred tax liabilities resulting from the change in federal corporate income tax rate to 21 percent from 35 percent effective January 1, 2018 as part of the 2017 Tax Act.

36

Segments

WEX operates in three reportable segments: Fleet Solutions, Travel and Corporate Solutions, and Health and Employee Benefit Solutions. Our Fleet Solutions segment provides payment, transaction processing and information management services specifically designed for the needs of commercial and government fleets. Our Travel and Corporate Solutions segment focuses on the complex payment environment of business-to-business payments, providing customers with payment processing solutions for their corporate payment and transaction monitoring needs. Our Health and Employee Benefit Solutions segment provides a SaaS platform for consumer directed healthcare payments, as well as payroll related benefits to customers in Brazil.

Results of Operations

The Company does not allocate foreign currency gains and losses, financing interest expense, unrealized and realized gains and losses on financial instruments, income taxes, net gains or losses from non-controlling interests, and non-cash adjustments related to our tax receivable agreement to our operating segments, as management believes these items are unpredictable and can obscure underlying trends. In addition, effective January 1, 2018, the Company does not allocate certain corporate expenses to our operating segments, as these items are centrally controlled and are not directly attributable to any reportable segment.

Certain information technology and corporate related costs that support multiple segments were previously included entirely within the Fleet Solutions segment. Effective January 1, 2018, such amounts are allocated to the operating segment that they support. Prior year amounts have been recast to conform with the changes in segment profitability described above.

Sources of Operating Expense

Cost of Services

• Processing costs - The Company’s processing costs consist of expenses related to processing transactions, servicing customers and merchants and cost of goods sold related to hardware and other product sales.

• Service fees - The Company incurs costs from third-party networks utilized to deliver payment solutions. Additionally, other third-parties are utilized in performing services directly related to generating revenue. With the adoption of Topic 606, effective January 1, 2018 fees paid to third-party networks are no longer recorded as service fees and are now prospectively presented as a reduction of revenues.

• Provision for credit losses - Changes in the reserve for credit loss are the result of changes in management’s estimate of the losses in the Company’s outstanding portfolio of receivables, including losses from fraud.

• Operating interest - The Company incurs interest expense on the operating debt obtained to provide liquidity for its short-term receivables.

• Depreciation and amortization - The Company has identified those tangible and intangible assets directly associated with providing a service that generates revenue and records the depreciation and amortization associated with those assets under this category. Such assets include processing platforms and related infrastructure, acquired developed technology intangible assets and other similar asset types.

Other Operating Expenses

• General and administrative - General and administrative includes compensation and related expenses for executive, finance and accounting, other information technology, human resources, legal and other corporate functions. Also included are corporate facilities expenses, certain third-party professional service fees and other corporate expenses.

• Sales and marketing - The Company’s sales and marketing expenses relate primarily to compensation, benefits, sales commissions and related expenses for sales, marketing and other related activities. With the adoption of Topic 606, effective January 1, 2018 certain payments to partners are now prospectively classified as sales and marketing expenses .

• Depreciation and amortization - The depreciation and amortization associated with tangible and intangible assets that are not considered to be directly associated with providing a service that generates revenue are recorded as other operating expenses. Such assets include corporate facilities and information technology assets and acquired intangible assets other than those included in cost of services.

37

Year Ended December 31, 2018, Compared to the Year Ended December 31, 2017

Fleet Solutions

Revenues

The following table reflects comparative revenue and key operating statistics within Fleet Solutions:

	Twelve Months Ended December 31,						Increase (Decrease)
(In thousands, except per transaction and per gallon data)	2018			2017			Amount			Percent
Revenues(a)
Payment processing revenue	$	464,980		$	360,158		$	104,822		29	%
Account servicing revenue	162,662			165,083			(2,421		)	(1	)%
Finance fee revenue	190,528			159,336			31,192			20	%
Other revenue	156,970			138,533			18,437			13	%
Total revenues	$	975,140		$	823,110		$	152,030		18	%
Key operating statistics(b)
Payment processing revenue:
Payment processing transactions	459,309			429,716			29,593			7	%
Payment processing fuel spend	$	36,991,903		$	30,288,539		$	6,703,364		22	%
Average price per gallon of fuel – Domestic – ($USD/gal)	$	2.95		$	2.50		$	0.45		18	%
Net payment processing rate	1.26		%	1.19		%	0.07		%	6	%

^(a) Foreign currency exchange rate fluctuations did not have a material impact on Fleet Solutions revenue in 2018.

^(b) The Company adopted the requirements of ASU 2014–09 (“the new revenue recognition standard”) as of January 1, 2018, utilizing the modified retrospective method of transition. Impacted non-financial metrics have been updated prospectively.

Revenues

The net impact of adopting the new revenue recognition standard in 2018, described further below, increased Fleet Solutions revenue by approximately $35 million for 2018, as compared to 2017.

Payment processing revenue increased$104.8 million for 2018, as compared to 2017, due primarily to higher average domestic fuel prices, the impact from the adoption of the new revenue recognition standard and increased payment processing volumes due to organic growth. Upon adoption of the new revenue recognition standard, we reclassified certain amounts paid to partners from a reduction of revenue to sales and marketing expense.

Account servicing revenue decreased$2.4 million for 2018, as compared to 2017, due primarily to the divestiture of our Telapoint business in the fourth quarter of 2017, partly offset by an increase in fees to certain customers as part of domestic price modernization efforts over the course of the prior year.

Other revenue increased$18.4 million in 2018, as compared to 2017, due primarily to organic growth resulting from higher EFS transaction processing revenue and Asia-Pacific revenues. Additionally, we reclassified certain amounts from contra revenue to selling expense in 2018 following adoption of the new revenue recognition standard.

Finance fee revenue is comprised of the following components:

	Twelve Months Ended December 31,				Increase (Decrease)
(In thousands)	2018		2017		Amount		Percent
Finance income	$	152,860	$	129,783	$	23,077	18	%
Factoring fee revenue	37,082		29,018		8,064		28	%
Cardholder interest income	586		535		51		10	%
Total finance fee revenue	$	190,528	$	159,336	$	31,192	20	%

38

Finance income primarily consists of late fees charged for receivables not paid within the terms of the customer agreement based upon the outstanding customer receivable balance. This revenue is earned when a customer’s receivable balance becomes delinquent and is calculated using the greater of a minimum charge or a stated late fee rate multiplied by the outstanding balance that is subject to a late fee charge. Changes in the absolute amount of such outstanding balances can be attributed to (i) changes in fuel prices; (ii) customer specific transaction volume; and (iii) customer specific delinquencies. Late fee revenue can also be impacted by (i) changes in late fee rates and (ii) increases or decreases in customer overdue balances. Late fee rates are determined and set based primarily on the risk associated with our customers, coupled with a strategic view of standard rates within our industry. Periodically, we assess the market rates associated within our industry to determine appropriate late fee rates. We consider factors such as the Company’s overall financial model and strategic plan, the cost to our business from customers failing to pay timely and the impact such late payments have on our financial results. These assessments are typically conducted at least annually but may occur more often depending on macro-economic factors.

Finance income increased$23.1 million in 2018, as compared to 2017, primarily due to changes in overdue outstanding balances resulting from higher average domestic fuel prices and volumes. For the majority of both 2018 and 2017, monthly late fee rates ranged up to to 7.99%, with a minimum finance charge of up to $75. The weighted average late fee rate, net of related charge-offs was 4.5% and 4.4% for 2018 and 2017, respectively.

Concessions to certain customers experiencing financial difficulties may be granted and are limited to extending the time to pay, placing a customer on a payment plan or granting waivers of late fees. There were no material concessions to customers experiencing financial difficulties during either of the years ended December 31, 2018 and 2017.

The primary source of factoring fee revenue is calculated as a negotiated percentage fee of the receivable balance that we purchase. A secondary source of factoring fee revenue is a flat rate service fee to our customers that request a non-contractual same day funding of the receivable balance. Factoring fee revenue increased$8.1 million in 2018, as compared to 2017, due to higher relative receivable balances purchased resulting from increased customer demand for our services.

Operating Expenses

The following table compares line items within operating income for Fleet Solutions:

	Twelve Months Ended December 31,				Increase (Decrease)
(In thousands)	2018		2017		Amount			Percent
Cost of services
Processing costs	$	190,109	$	178,710	$	11,399		6	%
Service fees	$	7,212	$	5,789	$	1,423		25	%
Provision for credit losses	$	54,484	$	59,251	$	(4,767	)	(8	)%
Operating interest	$	16,502	$	9,122	$	7,380		81	%
Depreciation and amortization	$	39,720	$	47,574	$	(7,854	)	(17	)%
Other operating expenses
General and administrative	$	72,404	$	73,397	$	(993	)	(1	)%
Sales and marketing	$	157,240	$	118,740	$	38,500		32	%
Depreciation and amortization	$	81,818	$	91,748	$	(9,930	)	(11	)%
Impairment charges	$	3,225	$	18,181	$	(14,956	)	(82	)%
Operating income	$	352,426	$	220,598	$	131,828		60	%

^{NM - Not Meaningful} 

Cost of services

Processing costs increased$11.4 million for 2018, as compared to 2017, due primarily additional processing costs associated with our Brazilian subsidiary and U.S. volume-related increases, including incremental headcount and costs related to recent significant customer acquisitions.

Service fees increased$1.4 million during 2018, as compared to 2017, due primarily to higher bank fees resulting from increased volumes.

39

Provision for credit losses decreased$4.8 million for 2018, as compared to 2017 due primarily to a decline in magnetic stripe card skimming fraud losses, partly offset by increases in receivable balances due to higher average domestic fuel prices and volume growth.

We generally measure our credit loss performance by calculating fuel-related credit losses as a percentage of total fuel expenditures on payment processing transactions. This metric for credit losses was 12.5 basis points of fuel expenditures for 2018, as compared to 17.2 basis points of fuel expenditures for 2017. We generally use a roll-rate methodology to calculate the amount necessary for our ending receivable reserve balance. This methodology considers total receivable balances, recent charge-off experience, recoveries on previously charged off accounts, and the dollars that are delinquent to calculate the total reserve. In addition, management undertakes a detailed evaluation of the receivable balances to help further ensure overall reserve adequacy. The expense we recognize in each quarter is the amount necessary to bring the reserve to its required level based on accounts receivable aging and net charge offs.

Operating interest expense increased$7.4 million in 2018, as compared to 2017, primarily due to higher interest rates paid on deposits and the impact of higher fuel prices and volumes.

Depreciation and amortization decreased$7.9 million in 2018, as compared to 2017, as 2017 was impacted by accelerated amortization of our existing over-the-road payment processing technology as a result of the EFS acquisition. This expense decrease relative to the prior year was partly offset by incremental depreciation on recent investments in internal-use software.

Other operating expenses

General and administrative expenses decreased$1.0 million in 2018, as compared to 2017, due to higher professional fees, partly offset by office closure restructuring costs to consolidate operations, which were incurred in 2017.

Sales and marketing expenses increased$38.5 million in 2018, as compared to 2017, due primarily to a reclassification of payments to partners, which are now included in sales and marketing expenses as a result of adopting the new revenue recognition standard. Prior to January 1, 2018, these payments were reflected as a reduction of revenue.

Depreciation and amortization decreased$9.9 million in 2018, as compared to 2017, due primarily to lower relative amortization on certain acquired intangibles.

During our annual goodwill assessment completed in the fourth quarter of 2018, we recorded a non-cash goodwill impairment charge of $3.2 million for our Brazil fleet reporting unit. See Item 8 – Note 9, Goodwill and Other Intangible Assets, of our consolidated financial statements for more information.

During the second quarter of 2017, we incurred a $16.2 million non-cash impairment and asset write-off related to in-sourcing certain technology functions, approximately $12.2 million of which was allocated to Fleet Solutions. Additionally, as part of a technology plan assessment, we streamlined certain payment processing software offerings and incurred an approximately $6.0 million non-cash software impairment charge in the fourth quarter of 2017.

40

Travel and Corporate Solutions

Revenues

The following table reflects comparative revenue and key operating statistics within Travel and Corporate Solutions:

	Twelve Months Ended December 31,				Increase (Decrease)
(In thousands)	2018		2017		Amount		Percent
Revenues(a)
Payment processing revenue	$	203,289	$	158,660	$	44,629	28	%
Account servicing revenue	37,262		7,531		29,731		395	%
Finance fee revenue	1,391		760		631		83	%
Other revenue	61,402		57,096		4,306		8	%
Total revenues	$	303,344	$	224,047	$	79,297	35	%
Key operating statistics(b)
Payment processing revenue:
Payment solutions purchase volume	$	34,702,614	$	30,344,752	$	4,357,862	14	%

^(a) Foreign currency exchange rate fluctuations did not have a material impact on Travel and Corporate Solutions revenue in 2018.

^(b) The Company adopted the requirements of the new revenue recognition standard as of January 1, 2018, utilizing the modified retrospective method of transition. Impacted non-financial metrics have been updated prospectively.

The net impact of adopting the new revenue recognition standard in 2018, described further below, increased Travel and Corporate Solutions revenue by approximately $8 million in 2018.

Payment processing revenue increased approximately $44.6 million for 2018, as compared to 2017, primarily due to strong performance in both our travel and corporate payment products. During 2018, we benefited from volume increases in all geographies. The impact of the adoption of the new revenue recognition standard also contributed to revenue growth. Upon adoption of the new revenue recognition standard, we reclassified certain amounts paid to partners from a reduction of revenue to sales and marketing expense and fees paid to third-party payment processing networks from service fees to a reduction of revenue.

Account servicing revenue increased approximately $29.7 million for 2018, as compared to 2017, primarily due to the acquisition of AOC during October 2017.

Finance fee revenue was not material to Travel and Corporate Solutions’ operations in 2018 or 2017.

Concessions to certain customers experiencing financial difficulties may be granted and are limited to extending the time to pay, placing a customer on a payment plan or granting waivers of late fees. As of and for the year ended December 31, 2018, customer balances with such concessions and waived late fees were immaterial. As of December 31, 2017, customer balances with such concessions totaled $7.9 million and the Company waived $2.1 million in late fees during 2017.

Other revenue increased approximately $4.3 million, as volume related increases were partly offset by an unfavorable adoption impact of the new revenue recognition standard. For the year ended December 31, 2018, network fees are now reflected as a reduction of revenue resulting from the adoption of the new revenue recognition standard. Prior to January 1, 2018, these network fees were classified as service fees.

41

Operating Expenses

The following table compares line items within operating income for Travel and Corporate Solutions:

	Twelve Months Ended December 31,					Increase (Decrease)
(In thousands)	2018		2017			Amount			Percent
Cost of services
Processing costs	$	44,949	$	23,821		$	21,128		89	%
Service fees	$	27,573	$	56,094		$	(28,521	)	(51	)%
Provision for credit losses	$	7,319	$	(68	)	$	7,387		NM
Operating interest	$	14,247	$	8,367		$	5,880		70	%
Depreciation and amortization	$	15,245	$	6,519		$	8,726		134	%
Other operating expenses
General and administrative	$	26,151	$	18,358		$	7,793		42	%
Sales and marketing	$	47,939	$	21,422		$	26,517		124	%
Depreciation and amortization	$	14,813	$	13,760		$	1,053		8	%
Impairment charge	$	2,424	$	25,990		$	(23,566	)	(91	)%
Operating income	$	102,684	$	49,784		$	52,900		106	%

^{NM - Not Meaningful} 

Cost of services    

Processing costs increased$21.1 million in 2018, as compared to 2017, due primarily to the acquisition of AOC.

Service fees decreased by $28.5 million in 2018, as compared to 2017, due primarily to cost savings as a result of the AOC acquisition and impacts from adoption of the new revenue recognition standard. These favorable impacts were partly offset by incremental expenses resulting from higher relative purchase volumes.

Provision for credit losses increased$7.4 million in 2018, as compared to 2017, due primarily to a discrete customer reserve taken during 2018 and increased volumes. Provision for credit losses in 2017 was unusually low as result of a partial bankruptcy loss recovery relating to one of our significant online travel agency customers recorded in 2016.

Operating interest increased$5.9 million in 2018, as compared to 2017, due to higher interest rates paid on deposits and volume growth.

Depreciation and amortization expenses increased$8.7 million in 2018, as compared to 2017, due primarily to amortization of intangible assets recognized upon the acquisition of AOC.

Other operating expenses

General and administrative expenses increased$7.8 million in 2018, as compared to 2017, due primarily to the acquisition of AOC.

Sales and marketing expenses increased$26.5 million in 2018, as compared to 2017, due primarily to a reclassification of payments to partners upon adoption of the new revenue recognition standard. These payments were previously reflected as a reduction of revenue.

Depreciation and amortization in 2018 were generally consistent with the prior year.

During 2018, we recognized a $2.4 million non-cash impairment charge to write-off certain property and equipment. There were two discrete impairment charges incurred during 2017. During the second quarter of 2017, we incurred a $16.2 million non-cash impairment and an asset write-off related to in-sourcing certain technology functions, approximately $4.0 million of which was allocated to Travel and Corporate Solutions. Additionally, we determined that the developed technology obtained as part of the AOC acquisition more closely aligned with our current technological strategy than did other capitalized software on our balance sheet. As a result, $22.0 million of previously capitalized software development was determined to have no future benefit and was therefore written-off during 2017.

42

Health and Employee Benefit Solutions

Revenues

The following table reflects comparative revenue and key operating statistics within Health and Employee Benefit Solutions:

	Twelve Months Ended December 31,				Increase (Decrease)
(In thousands)	2018		2017		Amount			Percent
Revenues(a)
Payment processing revenue	$	55,722	$	50,348	$	5,374		11	%
Account servicing revenue	108,172		103,956		4,216			4	%
Finance fee revenue	16,708		28,696		(11,988		)	(42	)%
Other revenue	33,553		18,420		15,133			82	%
Total revenues	$	214,155	$	201,420	$	12,735		6	%
Key operating statistics(b)
Payment processing revenue:
Purchase volume	$	4,814,328	$	4,317,236	$	497,092		12	%
Account servicing revenue:
Average number of SaaS accounts	11,020		9,213		1,807			20	%

^(a)The impact of foreign currency exchange rate fluctuations reduced Health and Employee Benefit Solutions revenue by approximately $3 million in 2018.

^(b) The Company adopted the requirements of the new revenue recognition standard as of January 1, 2018, utilizing the modified retrospective method of transition. Impacted non-financial metrics have been updated prospectively.

The net impact of adopting the new revenue recognition standard in 2018, decreased Health and Employee Benefit Solutions revenue by approximately $1 million in 2018.

Payment processing revenue increased approximately $5.4 million for 2018, as compared to 2017, primarily due to an increase in WEX Health purchase volume as a result of increased customer signings.

Account servicing revenue increased$4.2 million for 2018, as compared to 2017. This increase was primarily due to WEX Health customer signings and existing customer growth, which resulted in a higher number of participants using our SaaS healthcare technology platform, and higher revenue earned on HSA assets. These favorable impacts were partly offset by WEX Health customer mix and lower revenues in Brazil due primarily to due to the accounting impact of our WEX Latin America securitization arrangement, as discussed further in the other revenue discussion below.

Finance fee revenue decreased$12.0 million in 2018, as compared to 2017, due primarily to the accounting impact of our WEX Latin America securitization arrangement, as discussed further in the other revenue discussion below.

Concessions to certain customers experiencing financial difficulties may be granted and are limited to extending the time to pay, placing a customer on a payment plan or granting waivers of late fees. There were no material concessions to customers experiencing financial difficulties during either of the years ended December 31, 2018 and 2017.

Other revenue increased$15.1 million in 2018, as compared to 2017, primarily due to an increase in WEX Health professional services revenue and ancillary fees and realized gains on the sale of WEX Latin America customer receivables under our recently amended WEX Latin America securitization arrangement. Prior to amendment of our securitization arrangement in the second half of 2018, the revenue associated with these customer receivables was included in account servicing and finance fee revenue.

43

Operating Expenses

The following table compares line items within operating income for Health and Employee Benefit Solutions:

	Twelve Months Ended December 31,				Increase (Decrease)
(In thousands)	2018		2017		Amount			Percent
Cost of services
Processing costs	$	74,392	$	75,525	$	(1,133	)	(2	)%
Service fees	$	18,870	$	11,074	$	7,796		70	%
Provision for credit losses	$	4,679	$	5,035	$	(356	)	(7	)%
Operating interest	$	7,658	$	7,504	$	154		2	%
Depreciation and amortization	$	24,970	$	19,968	$	5,002		25	%
Other operating expenses
General and administrative	$	30,536	$	23,053	$	7,483		32	%
Sales and marketing	$	24,055	$	23,354	$	701		3	%
Depreciation and amortization	$	21,517	$	22,543	$	(1,026	)	(5	)%
Operating income	$	7,478	$	13,364	$	(5,886	)	(44	)%

Cost of services    

Processing costs decreased$1.1 million in 2018, as compared to 2017, primarily due to the favorable impact of lower bank fees in WEX Latin America resulting from a shift in product mix, partly offset by higher WEX Health processing costs resulting from volume increases.

Service fees increased by $7.8 million in 2018, as compared to 2017, primarily due to revenue growth on WEX Health HSA assets and increased payment processing volumes.

Provision for credit losses was generally consistent with the prior year.

Operating interest for 2018 was generally consistent with the operating interest for the prior year. Higher interest charges in 2018 resulting from increased volume on our WEX Latin America securitization arrangement were entirely offset by accounting impacts on this securitization arrangement. During the third quarter of 2018, we amended this agreement, resulting in sale accounting treatment upon the transfer of WEX Latin America customer receivables. As such, our associated cost of funding is now embedded in the gain on sale of the receivables and is recorded within other revenue, resulting in decreased operating interest for the second half of 2018.

Depreciation and amortization expenses increased $5.0 million in 2018, as compared to 2017, resulting from higher depreciation expense on capitalized WEX Health internal-use software development costs and additional infrastructure to support business growth.

Other operating expenses

General and administrative expenses increased$7.5 million in 2018, as compared to 2017, due primarily to an increase in professional fees as compared to the prior year.

Other operating expenses for 2018 were generally consistent with the operating expenses for the prior year.

Unallocated corporate expenses

Unallocated corporate expenses represent the portion of expenses relating to general corporate functions including acquisition expenses, certain finance, legal, information technology, human resources, administrative and executive expenses and other expenses not directly attributable to a reportable segment.

44

The following table compares line items within operating income for unallocated corporate expenses:

	Twelve Months Ended December 31,					Increase (Decrease)
(In thousands)	2018		2017			Amount			Percent
Other operating expenses
General and administrative	$	80,228	$	69,531		$	10,697		15	%
Sales and marketing	$	—	$	138		$	(138	)	NM
Depreciation and amortization	$	1,722	$	1,612		$	110		7	%
Gain on divestiture	$	—	$	(20,958	)	$	20,958		NM

^{NM - Not Meaningful} 

General and administrative expenses increased$10.7 million for 2018 as compared to 2017, due primarily to higher personnel related costs, including incremental headcount to support business growth, higher share based compensation expense, and increased professional fees incurred as part of our recently announced acquisitions and debt restructurings.

Sales and marketing expenses and depreciation and amortization were not material to the Company’s operations for both 2018 and 2017.

During 2017, management determined that our Telapoint business did not align with the long-term strategy of our core businesses. During November 2017, the Company sold $8.9 million of net assets related to this business for proceeds of $29.9 million, which resulted in a pre-tax book gain of approximately $21.0 million.

Non-operating income and expense

The following table reflects comparative results for certain amounts excluded from operating income:

	Twelve Months Ended December 31,						Increase (Decrease)
(In thousands)	2018			2017			Amount			Percent
Financing interest expense	$	(105,023	)	$	(107,067	)	$	(2,044	)	(2	)%
Net foreign currency (loss) gain	$	(38,800	)	$	31,487		$	(70,287	)	NM
Net unrealized gain on financial instruments	$	2,579		$	1,314		$	1,265		96	%
Non-cash adjustments related to tax receivable agreement	$	(775	)	$	15,259		$	(16,034	)	NM
Income taxes	$	68,843		$	15,450		$	53,393		346	%
Net income (loss) from non-controlling interest	$	1,481		$	(1,096	)	$	2,577		NM

^{NM - Not Meaningful} 

Financing interest expense decreased$2.0 million in 2018, as compared to 2017. This decrease was primarily due to lower effective interest rates, including the impact of $1.3 billion in interest rate swaps outstanding during most of 2018, and a decrease in average borrowings under our 2016 Credit Agreement, partly offset by a loss on the extinguishment of debt as part of our January 2018 debt repricing.

Our foreign currency exchange exposure is primarily related to the re-measurement of our cash, receivable and payable balances, including intercompany transactions that are denominated in foreign currencies. In 2018, net foreign currency loss was $38.8 million, as compared to a net foreign currency gain of $31.5 million in 2017. In 2018, the U.S. dollar strengthened relative to all major foreign currencies in which we transact, including the Euro, British pound sterling, Australian dollar, Brazilian real and Canadian dollar. In 2017, we recognized gains on trade receivables and intercompany loans primarily from a strengthening of the British Pound Sterling and the Euro relative to the US dollar.

Net unrealized gain on financial instruments was $2.6 million in 2018, as compared to $1.3 million in 2017. The increase in unrealized gain was due to higher average notional amounts of interest rate swaps outstanding and the favorable impact of increases in the variable interest rates on our swap agreements, partly offset by the decrease in remaining swap duration. In December 2017, the Company entered into two separate interest rate swap arrangements with an aggregate notional amount of $500 million, increasing the amount of fixed future interest payments associated with our variable rate borrowings to $1.3 billion.

45

Non-cash adjustments related to tax receivable agreement were not material to operations in 2018. In 2017, non-cash adjustments related to tax receivable agreement were $15.3 million, resulting from a decrease in a tax sharing liability due to our former parent company as a result of the 2017 Tax Act, which reduced the federal statutory rate from 35 percent to 21 percent.

Our effective tax rate was 28.9 percent for 2018 as compared to 8.9 percent for 2017. The lower tax rate in 2017 was primarily due to the reduction of our net deferred tax liabilities resulting from the change in federal corporate income tax rate from 35 percent to 21 percent effective January 1, 2018.

During the fourth quarter of 2017, the Company recorded a provisional one-time income tax benefit of $60.6 million associated with the 2017 Tax Act. During the third quarter of 2018, the Company recorded an adjustment for the one-time income tax benefit attributable to the Company updating its estimate of foreign undistributed earnings, which was materially offset by an adjustment to certain deferred tax attributes as a result of further clarification provided by the IRS relative to IRC 162(m). As of December 31, 2018, the Company completed its analysis and all amounts were considered final.

In January 2018, the FASB released guidance on the accounting for tax on the GILTI provisions of the 2017 Tax Act. The GILTI provisions impose a tax on foreign income in excess of a deemed return on tangible assets of foreign corporations. The Company elected to treat GILTI inclusions as a period cost and this resulted in an increase in tax expense of $1.8 million for the year ended December 31, 2018.

    Undistributed earnings of certain foreign subsidiaries of the Company amounted to approximately $64.9 million and $58.7 million at December 31, 2018 and 2017, respectively. These earnings are considered to be indefinitely reinvested. The 2017 Tax Act imposed a one time “transition tax” on foreign undistributed earnings, which was included with our 2017 U.S. Income Tax Return. The Company offset the transition tax with net operating loss carryforwards and therefore this tax did not result in any additional cash tax payable.

Net income or loss from non-controlling interest relates to our 75 percent ownership stake in WEX Europe Services. Such amounts were not material to Company operations for 2018 or 2017.

Year Ended December 31, 2017, Compared to the Year Ended December 31, 2016

Fleet Solutions

Revenues

The following table reflects comparative revenue and key operating statistics within Fleet Solutions:

	Twelve Months Ended December 31,						Increase (Decrease)
(In thousands, except per transaction and per gallon data)	2017			2016			Amount			Percent
Revenues(a)
Payment processing revenue	$	360,158		$	297,900		$	62,258		21	%
Account servicing revenue	165,083			127,105			37,978			30	%
Finance fee revenue	159,336			124,725			34,611			28	%
Other revenue	138,533			92,331			46,202			50	%
Total revenues	$	823,110		$	642,061		$	181,049		28	%
Key operating statistics (b)
Payment processing revenue:
Payment processing transactions	429,716			385,861			43,855			11	%
Payment processing fuel spend	$	30,288,539		$	22,838,237		$	7,450,302		33	%
Average price per gallon of fuel – Domestic – ($USD/gal)	$	2.50		$	2.21		$	0.29		13	%
Net payment processing rate	1.19		%	1.30		%	(0.11		)%	(8	)%

^(a) Foreign currency exchange rate fluctuations increased Fleet Solutions revenue by approximately $3 million in 2017.

^(b) As of July 1, 2016, these key operating statistics include our EFS acquisition.

Payment processing revenue increased $62.3 million for 2017, as compared to 2016, due primarily to the impact of a 13% increase in the annual average domestic price per gallon of fuel and higher payment processing volumes. Higher payment processing volumes resulted from organic growth, the acquisition of EFS and a large customer portfolio converting from a

46

transaction processing relationship to a payment processing relationship in the beginning of 2016. These favorable factors were partly offset by a decrease in our interchange rate as a result of the large portfolio conversion mentioned above.

Account servicing revenue increased $38.0 million for 2017, as compared to 2016, resulting from worldwide price modernization efforts over the course of the prior year and the EFS acquisition.

Other revenue increased $46.2 million in 2017, as compared to 2016, resulting primarily from higher transaction processing revenue due to the acquisition of EFS and additional pricing modernization efforts.

Finance fee revenue is comprised of the following components:

	Twelve Months Ended December 31,				Increase (Decrease)
(In thousands)	2017		2016		Amount			Percent
Finance income	$	129,783	$	104,492	$	25,291		24	%
Factoring fee revenue	29,018		19,689		$	9,329		47	%
Cardholder interest income	535		544		$	(9	)	(2	)%
Finance fee revenue	$	159,336	$	124,725	$	34,611		28	%

Finance income increased $25.3 million in 2017, as compared to 2016, due to an increase in overdue customer balances. For the majority of 2016, late fees ranged up to 6.99% monthly, with minimum charges of up to $75. For the majority of 2017, late fees ranged up to 7.99% monthly, with minimum charges of $75. The weighted average late fee rate, net of related charge-offs was 4.4% and 4.3% for 2017 and 2016, respectively.

Concessions to certain customers experiencing financial difficulties may be granted and are limited to extending the time to pay, placing a customer on a payment plan or granting waivers of late fees. There were no material concessions to customers experiencing financial difficulties during either of the years ended December 31, 2017 and 2016. Though not material, the Company granted certain concessions to domestic customers impacted by hurricanes and forest fires during 2017.

Factoring fee revenue increased $9.3 million in 2017, as compared to 2016. The increase in factoring fee revenue is due to organic growth and customer demand for our services.

Operating expenses

The following table compares line items within operating income for Fleet Solutions:

	Twelve Months Ended December 31,				Increase (Decrease)
(In thousands)	2017		2016		Amount			Percent
Cost of services
Processing costs	$	178,710	$	186,203	$	(7,493	)	(4	)%
Service fees	$	5,789	$	4,205	$	1,584		38	%
Provision for credit losses	$	59,251	$	27,264	$	31,987		117	%
Operating interest	$	9,122	$	3,476	$	5,646		162	%
Depreciation and amortization	$	47,574	$	44,245	$	3,329		8	%
Other operating expenses
General and administrative	$	73,397	$	66,788	$	6,609		10	%
Sales and marketing	$	118,740	$	93,835	$	24,905		27	%
Depreciation and amortization	$	91,748	$	51,732	$	40,016		77	%
Impairment charges	$	18,181	$	—	$	18,181		NM
Operating income	$	220,598	$	164,313	$	56,285		34	%

^{NM - Not Meaningful}  

47

Cost of services

Processing costs decreased $7.5 millionfor2017, as compared to 2016. 2016 results include additional processing costs associated with our Brazilian subsidiary. The reduction in processing costs during 2017 was partly offset by resources assumed as part of the acquisition of EFS and business growth.

Service fees increased $1.6 million during 2017, as compared to 2016, primarily due to an increase in professional fees.

Provision for credit losses increased $32.0 million for 2017, as compared to 2016, resulting from higher incidences of magnetic stripe card skimming fraud during 2017. Additionally, credit losses were impacted by higher relative fuel spend and the acquisition of EFS. During 2017, the Company took a number of steps to combat fraud losses, including establishing portfolio limits on the number of transactions and amount of fuel purchases. Additionally, we implemented new real-time technology during the fourth quarter of 2017, designed to increase fraud detection speed. As a result of these actions, monthly fraud losses trended downwards in the second half of 2017, most significantly in the fourth quarter.

Our credit losses as a percentage of total fuel expenditures on the payment processing transactions was 17.2 basis points of fuel expenditure for 2017, as compared to 11.1 basis points of fuel expenditures for 2016. The expense we recognize in each quarter is the amount necessary to bring the reserve to its required level based on accounts receivable aging and net charge offs.

Operating interest expense increased $5.6 million in 2017, as compared to 2016, primarily due to higher interest rates paid on recently issued certificates of deposit, which replaced previously held non-interest bearing deposits following the expiration of an agreement with a deposit partner during the fourth quarter of 2016. Additionally, payment processing volume increases and higher fuel prices contributed to the increase in operating interest expense.

Depreciation and amortization increased $3.3 million in 2017, as compared to 2016. Following the acquisition of EFS, we evaluated the estimated useful life of our existing over-the-road payment processing technology. As a result of this analysis, we accelerated amortization related to this technology during the third quarter of 2016, resulting in incremental amortization during 2017 as compared to the same period in the prior year. This technology is fully amortized as of December 31, 2017.

Other operating expenses

General and administrative expenses increased $6.6 million for 2017, as compared to 2016, resulting from personnel required to support the in-sourcing of technology functions from a third-party provider.

Sales and marketing expenses increased $24.9 million in 2017, as compared to 2016 due to resulting primarily from higher costs to support business growth, including incremental costs as a result of the EFS acquisition.

Depreciation and amortization increased $40.0 million in 2017, as compared to 2016, due primarily to a full year of amortization of intangibles acquired in the EFS acquisition.

During the second quarter of 2017, we incurred a $16.2 million non-cash impairment and asset write-off related to in-sourcing certain technology functions, approximately $12.2 million of which was allocated to Fleet Solutions. Additionally, as part of a technology plan assessment, we streamlined certain payment processing software offerings and incurred an approximately $6.0 million non-cash software impairment and asset write-off charge in the fourth quarter of 2017.

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Travel and Corporate Solutions

Revenues

The following table reflects comparative results and key operating statistics within Travel and Corporate Solutions:

	Twelve Months Ended December 31,				Increase (Decrease)
(In thousands)	2017		2016		Amount			Percent
Revenues(a)
Payment processing revenue	$	158,660	$	175,762	$	(17,102	)	(10	)%
Account servicing revenue	7,531		1,247		6,284			504	%
Finance fee revenue	760		643		117			18	%
Other revenue	57,096		37,595		19,501			52	%
Total revenues	$	224,047	$	215,247	$	8,800		4	%
Key operating statistics(b)
Payment processing revenue:
Payment solutions purchase volume	$	30,344,752	$	23,965,023	$	6,379,729		27	%

^(a) The impact of foreign currency exchange rate fluctuations did not have a material impact on revenue in 2017.

^(b) As of July 1, 2016, these key operating statistics include our EFS acquisition.

Revenues

Payment processing revenue decreased approximately $17.1 million for 2017, as compared to 2016, primarily due to a decrease in our net interchange rate resulting from contract renegotiations with a large travel customer which went into effect in January 2017. This decrease in our net interchange rate was partly offset by an increase in corporate charge card purchase volume from our WEX travel product in all our markets, most notably the U.S. and Europe, and the acquisition of EFS.

Account servicing revenue increased approximately $6.3 million for 2017, as compared to 2016, primarily due to the acquisition of AOC in October 2017.

Finance fee revenue was not material to Travel and Corporate Solutions’ operations in 2017 or 2016.

Other revenue increased approximately $19.5 million for 2017, as compared to 2016, primarily due to higher international settlement fees.

Concessions to certain customers experiencing financial difficulties may be granted and are limited to extending the time to pay, placing a customer on a payment plan or granting waivers of late fees. As of December 31, 2017 and 2016, customer balances with such concessions totaled $7.9 million and $16.7 million, respectively. The Company waived $2.1 million and $1.3 million in late fees in 2017 and 2016, respectively.

49

Operating expenses

The following table compares line items within operating income for Travel and Corporate Solutions:

	Twelve Months Ended December 31,					Increase (Decrease)
(In thousands)	2017			2016		Amount			Percent
Cost of services
Processing costs	$	23,821		$	22,551	$	1,270		6	%
Service fees	$	56,094		$	67,841	$	(11,747	)	(17	)%
Provision for credit losses	$	(68	)	$	5,676	$	(5,744	)	(101	)%
Operating interest	$	8,367		$	2,969	$	5,398		182	%
Depreciation and amortization	$	6,519		$	4,188	$	2,331		56	%
Other operating expenses
General and administrative	$	18,358		$	30,006	$	(11,648	)	(39	)%
Sales and marketing	$	21,422		$	18,908	$	2,514		13	%
Depreciation and amortization	$	13,760		$	5,355	$	8,405		157	%
Impairment charge	$	25,990		$	—	$	25,990		NM
Operating income	$	49,784		$	57,753	$	(7,969	)	(14	)%

^{NM - Not Meaningful}  

Cost of services

Processing costs increased $1.3 million in 2017, as compared to 2016, due primarily to the acquisitions of AOC and EFS.

Service fees decreased by $11.7 million in 2017, as compared to 2016, due primarily to lower network processing fees paid as a result of our MasterCard contract renewal executed during the third quarter of 2016, partly offset by incremental expenses resulting from higher relative purchase volumes.

Provision for credit losses decreased $5.7 million in 2017, as compared to 2016. Prior year results were negatively impacted by two discrete credit losses, including the bankruptcy of one of our online travel agency customers. We recovered a portion of the 2016 provision for credit loss during 2017.

Operating interest increased $5.4 million in 2017, as compared to 2016, due to higher deposit interest rates. Following the expiration of an agreement with a deposit partner during the fourth quarter of 2016, we issued certificates of deposit to replace previously held non-interest bearing deposits. Additionally, higher payment processing volumes contributed to the increase in operating interest expense.

Depreciation and amortization expenses increased $2.3 million in 2017, as compared to 2016, due to amortization of intangibles recognized as part of our AOC and EFS acquisitions.

Other operating expenses

General and administrative expenses decreased $11.6 million in 2017, as compared to 2016, primarily due to a one-time $15.5 million vendor settlement executed in 2016 in exchange for the release of potential claims related to in-sourcing certain technology, partly offset by personnel costs assumed in the AOC and EFS acquisitions.

Sales and marketing expenses increased $2.5 million in 2017, as compared to 2016, due primarily to the acquisitions of AOC and EFS.

Depreciation and amortization expenses increased $8.4 million in 2017, as compared to 2016, primarily due to amortization of intangibles recognized as part of our AOC acquisition.

During the second quarter of 2017, we incurred a $16.2 million non-cash impairment and an asset write-off related to in-sourcing certain technology functions, approximately $4.0 million of which was allocated to Travel and Corporate Solutions. Additionally, we determined that the developed technology obtained as part of the AOC acquisition more closely aligned with our

50

current technological strategy than did other capitalized software on our balance sheet. As a result, $22.0 million of previously capitalized software development was determined to have no future benefit and was therefore written-off during 2017.

Health and Employee Benefit Solutions

Revenues

The following table reflects comparative revenue and key operating statistics within Health and Employee Benefit Solutions:

	Twelve Months Ended December 31,				Increase (Decrease)
(In thousands)	2017		2016		Amount		Increase
Revenues (a)
Payment processing revenue	$	50,348	$	46,957	$	3,391	7	%
Account servicing revenue	103,956		82,660		21,296		26	%
Finance fee revenue	28,696		7,600		21,096		278	%
Other revenue	18,420		17,963		457		3	%
Total revenues	$	201,420	$	155,180	$	46,240	30	%
Key operating statistics
Payment processing revenue:
Purchase volume	$	4,317,236	$	3,823,035	$	494,201	13	%
Account servicing revenue:
Average number of SaaS accounts	9,213		7,197		2,016		28	%

^(a) Foreign currency exchange rate fluctuations increased Health and Employee Benefit Solutions revenue by $3 million in 2017.

Revenues

Payment processing revenue increased approximately $3.4 million for 2017, as compared to 2016, resulting primarily from an increase in WEX Health purchase volume due to growth in the number of consumers, partly offset by a slight decline in WEX Latin America revenues.

Account servicing revenue increased $21.3 million for 2017, as compared to 2016. This increase was primarily due to WEX Health customer signings and existing customer growth, which resulted in a higher number of participants using our SaaS healthcare technology platform.

Finance fee revenue increased $21.1 million in 2017, as compared to 2016, due primarily to growth in revenue earned on our salary advance product in Brazil.

Concessions to certain customers experiencing financial difficulties may be granted and are limited to extending the time to pay, placing a customer on a payment plan or granting waivers of late fees. There were no material concessions to customers experiencing financial difficulties during either of the years ended December 31, 2017 and 2016.

Other revenue increased $0.5 million in 2017, as compared to 2016, resulting primarily from an increase in Brazil card transactions and higher ancillary WEX Health fees as result of a growing customer base.

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Operating expenses

The following table compares line items within operating income for Health and Employee Benefit Solutions: 

	Twelve Months Ended December 31,				Increase (Decrease)
(In thousands)	2017		2016		Amount		Percent
Cost of services
Processing costs	$	75,525	$	61,963	$	13,562	22	%
Service fees	$	11,074	$	7,321	$	3,753	51	%
Provision for credit losses	$	5,035	$	518	$	4,517	872	%
Operating interest	$	7,504	$	5,941	$	1,563	26	%
Depreciation and amortization	$	19,968	$	14,446	$	5,522	38	%
Other operating expenses
General and administrative	$	23,053	$	17,688	$	5,365	30	%
Sales and marketing	$	23,354	$	18,042	$	5,312	29	%
Depreciation and amortization	$	22,543	$	20,158	$	2,385	12	%
Operating income	$	13,364	$	9,103	$	4,261	47	%

Cost of services    

Processing costs increased $13.6 million in 2017, as compared to 2016, primarily due to an increase in volume resulting from a growth in the number of customers.

Service fees increased $3.8 million in 2017, as compared to 2016, primarily due to costs incurred as a result of the increase in participants using our SaaS healthcare offerings.

Provision for credit losses increased $4.5 million in 2017, as compared to 2016. 2016 was unfavorably impacted by increased credit losses in Brazil, primarily relating to a discrete customer.

Operating interest increased $1.6 million in 2017, as compared to 2016, primarily due to an increase in customer receivable balances due to business growth and higher average interest rates.

Depreciation and amortization expenses increased $5.5 million in 2017, as compared to 2016, resulting from higher depreciation expense primarily on capitalized internal-use software development costs.

Other operating expenses

General and administrative expenses increased $5.4 million in 2017, as compared to 2016, primarily due to expenses to support significant business growth and higher revenue-based taxes in Brazil.

Sales and marketing expenses increased $5.3 million in 2017, as compared to 2016, primarily in support of an overall increase in business growth.

Depreciation and amortization increased $2.4 million in 2017, as compared to 2016, resulting from higher amortization of acquired intangibles.

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Unallocated corporate expenses

The following table compares line items within operating income for unallocated corporate expenses:

	Twelve Months Ended December 31,					Increase (Decrease)
(In thousands)	2017			2016		Amount			Percent
Other operating expenses
General and administrative	$	69,531		$	71,075	$	(1,544	)	(2	)%
Sales and marketing	$	138		$	42	$	96		229	%
Depreciation and amortization	$	1,612		$	1,527	$	85		6	%
Gain on divestiture	$	(20,958	)	$	—	$	(20,958	)	—	%

General and administrative expenses in 2017 were generally consistent with the prior year.

Sales and marketing expenses and depreciation and amortization were not material to the Company’s operations for both of 2017 and 2016.

During 2017, management determined that our Telapoint business did not align with the long-term strategy of our core businesses. During November 2017, the Company sold $8.9 million of net assets related to this business for proceeds of $29.9 million, which resulted in a pre-tax book gain of approximately $21.0 million.

Non-operating income and expense

The following table reflects comparative results for certain amounts excluded from operating profit:

	Twelve Months Ended December 31,						Increase (Decrease)
(In thousands)	2017			2016			Amount			Percent
Financing interest expense	$	(107,067	)	$	(113,418	)	$	(6,351	)	(6	)%
Net foreign currency gain (loss)	$	31,487		$	(9,233	)	$	40,720		NM
Net realized and unrealized gains on fuel price derivatives	$	—		$	711		$	(711	)	NM
Net unrealized gain on financial instruments	$	1,314		$	12,908		$	(11,594	)	(90	)%
Non-cash adjustments related to tax receivable agreement	$	15,259		$	(563	)	$	15,822		NM
Income taxes	$	15,450		$	28,592		$	(13,142	)	(46	)%
Net loss from non-controlling interest	$	(1,096	)	$	(3,161	)	$	(2,065	)	(65	)%

^{NM - Not Meaningful} 

Financing interest expense decreased $6.4 million in 2017, as compared to 2016. The Company was unfavorably impacted by $30 million of ticking fees incurred for the commitment of funds to finance the acquisition of EFS in 2016. The absence of this expense in 2017 was partly offset by higher relative borrowings and effective interest rates under the 2016 Credit Agreement.

Our foreign currency exchange exposure is primarily related to the re-measurement of our cash, receivable and payable balances, including intercompany transactions that are denominated in foreign currencies. In 2017, net foreign currency gain was $31.5 million, as compared to a net foreign currency loss of $9.2 million in 2016. In 2017, we recognized gains on trade receivables and intercompany loans primarily from a strengthening of the British Pound Sterling and the Euro relative to the US dollar. In 2016, we experienced foreign currency exchange losses from fluctuations in exchange rates that resulted in a significant devaluation of major currencies to which our business is exposed, including the British Pound Sterling, the Euro and the Australian dollar.

Net realized and unrealized gains on fuel price derivatives were not material to Company operations in 2017 or 2016.

Net unrealized gain on financial instruments decreased $11.6 million in 2017, as compared to 2016. In 2017, the favorable impact of increases in the variable interest rates on our swap agreements was almost entirely offset by the decrease in remaining swap duration.

Non-cash adjustments related to tax receivable agreement were $15.3 million in 2017 resulting from a decrease in a tax sharing liability due to our former parent company as result of recent tax reform which reduced the federal statutory rate from 35% to 21%.

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Our effective tax rate was 8.9 percent for 2017 as compared to 58.4 percent for 2016. The decrease in our tax rate was primarily due to the reduction of our net deferred tax liabilities resulting from the change in federal corporate income tax rate to 21 percent from 35 percent effective January 1, 2018 as part of the 2017 Tax Act and a decrease in non-deductible expense in 2017, partly offset by the increase in valuation allowance. The 2016 tax rate reflected non-deductible expenses related to the losses incurred by our Brazilian subsidiary, as these losses were not deductible for tax purposes.

During the fourth quarter of 2017, the Company estimated the provision for income taxes in accordance with the 2017 Tax Act and guidance available and as a result has recorded a provisional amount of one-time income tax benefit of approximately $60.6 million. This benefit is primarily related to the remeasurement of certain deferred tax assets and liabilities based on the tax rates at which they are expected to reverse in the future and a reduction in the amount due under our tax receivable agreement, which decreased primarily as a result of the decline in the federal corporate income tax rate. These favorable impacts were partly offset by income tax expense related to the one-time transition on the mandatory deemed repatriation of foreign earnings.

The 2017 Tax Act created a new requirement to tax certain foreign earnings relating to GILTI. During the year ended December 31, 2017, we did not record any deferred taxes related to GILTI and had not yet elected an accounting policy for GILTI.

Undistributed earnings of certain foreign subsidiaries of the Company amounted to approximately $58.7 million and $25.8 million at December 31, 2017 and 2016, respectively. These earnings are considered to be indefinitely reinvested. Beginning in 2018, except for GILTI, the Company no longer records United States federal income tax on its share of the income of its foreign subsidiaries, nor a benefit for foreign tax credits related to that income.

Net income or loss from non-controlling interest relates to our 75 percent ownership stake in WEX Europe Services. Such amounts were not material to Company operations for 2017 and 2016.

Non-GAAP Financial Measures That Supplement GAAP Measures

The Company’s non-GAAP adjusted net income excludes unrealized gains and losses on financial instruments, net foreign currency remeasurement gains and losses, acquisition-related ticking fees, acquisition-related intangible amortization, other acquisition and divestiture related items, stock-based compensation, restructuring and other costs, gain on divestiture, impairment charges and asset write-offs, a one-time vendor settlement, debt restructuring and debt issuance cost amortization, non-cash adjustments related to tax receivable agreement, adjustments attributed to our non-controlling interest and certain tax related items.

Although adjusted net income is not calculated in accordance with GAAP, this non-GAAP measure is integral to the Company’s reporting and planning processes and the chief operating decision maker of the Company uses segment adjusted operating income to allocate resources among our operating segments. The Company considers this measure integral because it excludes the above-specified items that the Company’s management excludes in evaluating the Company’s performance. Specifically, in addition to evaluating the Company’s performance on a GAAP basis, management evaluates the Company’s performance on a basis that excludes the above items because:

• Exclusion of the non-cash, mark-to-market adjustments on financial instruments, including fuel-price related derivatives and interest rate swap agreements and investment securities, helps management identify and assess trends in the Company’s underlying business that might otherwise be obscured due to quarterly non-cash earnings fluctuations associated with these financial instruments. Additionally, the non-cash, mark-to-market adjustments on financial instruments are difficult to forecast accurately, making comparisons across historical and future quarters difficult to evaluate.

• Net foreign currency gains and losses primarily result from the remeasurement to functional currency of cash, receivable and payable balances, certain intercompany balances denominated in foreign currencies and any gain or loss on foreign currency hedges relating to these items. The exclusion of these items helps management compare changes in operating results between periods that might otherwise be obscured due to currency fluctuations.

• The Company considers certain acquisition-related costs, including certain financing costs, ticking fees, investment banking fees, warranty and indemnity insurance, certain integration related expenses and amortization of acquired intangibles, as well as gains and losses from divestitures to be unpredictable, dependent on factors that may be outside of our control and unrelated to the continuing operations of the acquired or divested business or the Company. In addition, the size and complexity of an acquisition, which often drives the magnitude of acquisition-related costs, may not be indicative of such future costs. During the year ended December 31, 2017, the Company determined that our Telapoint business did not align with the long-term strategy of our core businesses and as result sold the net assets of the business. The Company believes that excluding acquisition-related costs and gains or losses of divestitures facilitates the comparison of our financial results to the Company’s historical operating results and to other companies in our industry.

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• Stock-based compensation is different from other forms of compensation, as it is a non-cash expense. For example, a cash salary generally has a fixed and unvarying cash cost. In contrast, the expense associated with an equity-based award is generally unrelated to the amount of cash ultimately received by the employee, and the cost to the Company is based on a stock-based compensation valuation methodology and underlying assumptions that may vary over time.

• Restructuring and other costs are related to certain identified initiatives to further streamline the business, improve the Company’s efficiency, create synergies and to globalize the Company’s operations, all with an objective to improve scale and increase profitability going forward. This also includes other immaterial costs that the Company has incurred and are non-operational and non-recurring. We exclude these items when evaluating our continuing business performance as such items are not consistently occurring and do not reflect expected future operating expense, nor do they provide insight into the fundamentals of current or past operations of our business.

• Impairment charges and asset write-offs represent non-cash write-offs, which do not reflect recurring costs that would be relevant to the Company’s continuing operations. In 2018, impairment charges represent a goodwill impairment related to Fleet Solutions operations in Latin America. We also impaired certain computer software which was determined to have no future value in 2018. In 2017, we incurred impairment charges of certain prepaid services following a strategic decision to in-source certain technology functions and on certain payment processing software as part of our ongoing platform consolidation strategy. The Company believes that excluding these nonrecurring expenses facilitates the comparison of our financial results to the Company’s historical operating results and to other companies in its industry.

• Vendor settlement represents a payment in exchange for the release of potential claims related to insourcing certain technology, and does not reflect recurring costs that would be relevant to the continuing operations of the Company. The Company believes that excluding this nonrecurring expense facilitates the comparison of our financial results to the Company’s historical operating results and to other companies in its industry.

• Debt restructuring and debt issuance cost amortization are unrelated to the continuing operations of the Company. Debt restructuring costs are not consistently occurring and do not reflect expected future operating expense, nor do they provide insight into the fundamentals of current or past operations of our business. In addition, since debt issuance cost amortization is dependent upon the financing method which can vary widely company to company, we believe that excluding these costs helps to facilitate comparison to historical results as well as to other companies within our industry.

• The adjustments attributable to non-controlling interests and to non-cash adjustments related to our tax receivable agreement have no significant impact on the ongoing operations of the business.

• The tax related items are the difference between the Company’s U.S. GAAP tax provision and a pro forma tax provision based upon the Company’s adjusted net income before taxes as well as the impact from certain discrete tax items. The methodology utilized for calculating the Company’s adjusted net income tax provision is the same methodology utilized in calculating the Company’s U.S. GAAP tax provision.

For the same reasons, WEX believes that adjusted net income may also be useful to investors as one means of evaluating the Company’s performance. However, because adjusted net income is a non-GAAP measure, it should not be considered as a substitute for, or superior to, net income, operating income or cash flows from operating activities as determined in accordance with GAAP. In addition, adjusted net income as used by WEX may not be comparable to similarly titled measures employed by other companies.     

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The following table reconciles net income attributable to shareholders to adjusted net income attributable to shareholders:

	Year ended December 31,
	2018			2017			2016
Net income attributable to shareholders	$	168,295		$	160,062		$	23,499
Unrealized gains on financial instruments	(2,579		)	(1,314		)	(7,901		)
Net foreign currency remeasurement loss (gain)	38,800			(31,487		)	9,233
Acquisition-related ticking fees	—			—			30,045
Acquisition-related intangible amortization	138,186			153,810			97,829
Other acquisition and divestiture related items	4,143			5,000			20,879
Gain on divestiture	—			(20,958		)	—
Stock-based compensation	35,103			30,487			19,742
Restructuring and other costs	13,717			11,129			13,995
Impairment charges and asset write-offs	5,649			44,171			—
Vendor settlement	—			—			15,500
Debt restructuring and debt issuance cost amortization	14,101			10,519			12,673
Non-cash adjustments related to tax receivable agreement	775			(15,259		)	563
ANI adjustments attributable to non-controlling interests	(1,370		)	(1,563		)	(2,583		)
Tax related items	(52,538		)	(109,251		)	(78,800		)
Adjusted net income attributable to shareholders	$	362,282		$	235,346		$	154,674

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Application of Critical Accounting Policies and Estimates

Our discussion and analysis of our financial condition and results of operations are based upon our consolidated financial statements, which have been prepared in accordance with GAAP. Preparation of these financial statements requires us to make estimates and judgments that affect reported amounts of assets and liabilities, revenue and expenses and related disclosure of contingent assets and liabilities at the date of our financial statements. We continually evaluate our judgments and estimates in determination of our financial condition and operating results. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances, 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. Estimates are based on information available as of the date of the financial statements and, accordingly, actual results could differ from these estimates, sometimes materially. Critical accounting policies and estimates are defined as those that are both most important to the portrayal of our financial condition and operating results and require management’s most subjective judgments. Our consolidated financial statements are based on the selection and application of critical accounting policies and estimates, the most significant of which are included in the tables below.

Revenue Recognition

Description	Assumptions/Approach Used	Effect if Actual Results Differ from Assumptions
The majority of the Company’s revenues are comprised of transaction-based fees, which are generally calculated based on measures such as: (i) percentage of dollar value of volume processed; (ii) number of transactions processed; or (iii) some combination thereof. Interchange income, a fee paid by a merchant bank to the card-issuing bank (the Company) through the interchange network, is earned from the Company’s suite of card products. Interchange fees are set by the credit card providers. The Company has entered into agreements with major oil companies, fuel retailers and vehicle maintenance providers which provide products and/or services to the Company’s customers. These agreements specify that a transaction is deemed to be captured when the Company has validated that the transaction has no errors and has accepted and posted the data to the Company’s records. Account servicing revenue is primarily comprised of monthly fees charged to cardholders. The Company also recognizes SaaS based service fees in the healthcare market and licensing fees for use of our accounts receivable and accounts payable SaaS platforms. The Company earns revenue on overdue accounts, calculated using the greater of a minimum charge or a stated late fee rate multiplied by the outstanding balance that is subject to a late fee charge. The Company assesses fees for providing ancillary services, such as information products and services, software development projects and other services sold subsequent to the core offerings. Other revenues also include international settlement fees, fees for overnight shipping, certain customized electronic reporting and customer contact services provided on behalf of certain of the Company’s customers.	The Company’s primary performance obligation to merchants is a stand-ready commitment to provide payment and transaction processing services as the merchant requires, which is satisfied over time in daily increments. Within our Travel and Corporate Solutions and Health and Employee Benefit Solutions segments, we provide SaaS services and support, which is satisfied over time in a series of daily increments. Revenue is recognized based on an output method using days elapsed to measure progress as the Company transfers control evenly over each monthly subscription period. The Company enters into contracts with certain large customers or strategic cardholders that provide for fee rebates tied to performance milestones. The Company considered whether such rebates constitute considerable payable to a customer or other parties that purchase services from the customer per Topic 606. If so, such rebates, which are considered variable consideration, are recorded as a reduction in payment processing revenue in the same period that related interchange income is recognized. The Company earns revenue on overdue accounts, which is recognized as revenue at the time the fees are assessed. The Company generally records revenue net of consideration retained based upon its conclusion that the Company is the agent in its principal versus agent relationships.	In preparing the financial statements, management must make estimates related to the contractual terms, customer performance and sales volume to determine the total amounts recorded as deductions, such as rebates and incentives, from revenue. Rebates and incentives are calculated based on estimated performance and the terms of the related business agreements. Management also considers historical results in making such estimates. The actual amounts ultimately paid to the customer may be different from our estimates. Such differences are recorded once they have been determined and have historically not been significant.

See Item 8 — Note 1, Summary of Significant Accounting Policies, for accounting guidance applied prior to the Company’s adoption of Topic 606.

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Reserve for Credit Losses

Description	Assumptions/Approach Used	Effect if Actual Results Differ from Assumptions
The reserve for losses relating to accounts receivable represents management’s estimate of the losses inherent in the Company’s outstanding portfolio of receivables, including fraud losses. The reserve for credit losses reduces the Company’s accounts receivable balances as reported in its financial statements to the net realizable value.	Management has consistently considered its portfolio of charge card receivables as a large group of smaller balance accounts that it has collectively evaluated for impairment. Reserves for losses on these receivables are primarily based on a model that analyzes specific portfolio statistics, including average charge-off rates for various stages of receivable aging (including: current, 30 days, 60 days, 90 days) over historical periods including average bankruptcy and recovery rates. Receivables are generally written off when they are 150 days past due or declaration of bankruptcy by the customer. The reserve reflects management’s judgment regarding overall reserve adequacy. Management considers whether to adjust the reserve that is calculated by the analytic model based on other factors, such as the actual charge-offs for the preceding reporting periods, expected charge-offs and recoveries for the subsequent reporting periods, a review of accounts receivable balances which become past due, changes in customer payment patterns, known fraudulent activity in the portfolio, as well as leading economic and market indicators.	To the extent historical credit experience is not indicative of future performance, actual loss experience could differ significantly from management’s judgments and expectations, resulting in either higher or lower future provisions for credit losses, as applicable. As of December 31, 2018, we have an estimated reserve for credit losses which is 1.78 percent of the total gross accounts receivable balance. An increase or decrease to this reserve by 0.5 percent would increase or decrease the provision for credit losses for the year by $13.2 million. As of December 31, 2018, 2017 and 2016, our reserve for credit losses in an annual period has ranged from 0.97 percent to 1.78 percent of the total receivable balance.

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Business Combinations, Acquired Intangible Assets and Goodwill

Description	Assumptions/Approach Used	Effect if Actual Results Differ from Assumptions
Business combinations are accounted for at fair value. The accounting for business combinations requires estimates and judgment as to expectations for future cash flows of the acquired business, and the allocation of those cash flows to identifiable intangible assets, in determining the estimated fair value for assets and liabilities acquired.   An acquisition not meeting the criteria to be accounted for as a business combination is accounted for as an asset acquisition. Asset acquisitions are recorded at purchase price allocated based on the the relative fair value of identifiable assets and liabilities. No goodwill is recorded in an asset acquisition.   Goodwill is comprised of the cost of business acquisitions in excess of the fair value assigned to the net tangible and identifiable intangible assets acquired. Goodwill is not amortized but is reviewed for impairment annually, or when events or changes in the business environment indicate that the carrying value of the reporting unit may exceed its fair value. Acquired intangible assets result from the allocation of the cost of an acquisition. These acquired intangibles include assets that amortize, primarily software and customer relationships, and those that do not amortize, specifically trademarks and certain trade names. The annual review of goodwill and indefinite-lived intangibles values is performed as of October 1 of each year.	The fair values assigned to tangible and intangible assets acquired and liabilities assumed are based on management’s estimates and assumptions, as well as other information compiled by management, including valuations that utilize customary valuation procedures and techniques.   In the fourth quarter of 2018, we elected to bypass the qualitative approach and instead proceeded directly to step one of the two-step impairment test to assess the fair value of all of our reporting units. For the reporting units that carry goodwill balances, our impairment test consists of a comparison of each reporting unit’s carrying value to its estimated fair value. A reporting unit, for the purpose of the impairment test, is one level below the operating segment level. We have three reporting segments that are further broken into several reporting units for the impairment review. The estimated fair value for the majority of our reporting units is estimated using a combination of discounted estimated future cash flows and prices for comparable businesses. An appropriate discount rate is used, as well as risk premium for specific business units, based on the Company’s cost of capital or reporting unit-specific economic factors. We generally validate the model through a reconciliation of the fair value of all our reporting units to our overall market capitalization. The assumptions used to estimate the discounted cash flows are based on our best estimates about payment processing fees/interchange rates, sales volumes, costs (including fuel prices), future growth rates, working capital needs, capital expenditures and market conditions over an estimate of the remaining operating period at the reporting unit level. The discount rate at each reporting unit is based on the weighted average cost of capital that is determined by evaluating the risk free rate of return, cost of debt, and expected equity premiums.   Acquired intangible assets are considered non-recoverable if the carrying amount exceeds the sum of undiscounted cash flows expected to result from the use of the assets. The recoverability test is based on management’s intended use of the assets. If the asset fails the recoverability test, impairment is measured as the amount by which the carrying amount of the asset group exceeds its fair value. Fair value measurements under FASB Accounting Standards Codification (“ASC”) 820 –Fair Value Measurements and Disclosures, are based on the assumptions of market participants. When determining the fair value of the asset group, entities must consider the highest and best use of the assets from a market-participant perspective.	We review the carrying values of goodwill and intangible assets with indefinite lives for impairment annually and whenever events or changes in business circumstances indicate that the carrying amount of an asset may not be recoverable. Such circumstances would include, but are not limited to, a significant decrease in the perceived market price of the intangible, a significant adverse change in the way the asset is being used, or a history of operating or cash flow losses associated with the use of the intangible. Our goodwill resides in multiple reporting units. The profitability of individual reporting units may suffer periodically from downturns in customer demand or other economic factors. Individual reporting units may be more impacted than the Company as a whole. Specifically, during times of economic slowdown, our customers may reduce their expenditures. As a result, demand for the services of one or more of the reporting units could decline which could adversely affect our operations, cash flow, and liquidity and could result in an impairment of goodwill or intangible assets. During our annual goodwill and indefinite -lived intangible asset impairment tests performed as of October 1, 2018, we assessed the impact of a customer loss significant to our Brazil fleet business. Based on a comparison of the calculated fair value of this reporting unit to its carrying value, the Company recorded a $3.2 million goodwill impairment charge. There is no remaining net goodwill associated with this reporting unit. For all other reporting units tested, our 2018 goodwill impairment test indicated an excess of estimated fair value over the carrying amount ranging from approximately $135 million to $4.3 billion. Although no additional reporting units are deemed at risk of impairment as of December 31, 2018, the potential for impairment exists in the future should actual results deteriorate versus our current expectations. As of December 31, 2018, the Company had approximately $2.9 billion on its consolidated balance sheet related to goodwill and intangible assets of acquired entities. The Company tests intangible assets with definite lives for impairment if conditions exist that indicate the carrying value may not be recoverable. The Company did not record any goodwill and intangible asset impairments during the years ended December 31, 2017 and 2016.

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Income Taxes

Description	Assumptions/Approach Used	Effect if Actual Results Differ from Assumptions
In preparing the consolidated financial statements, we calculate income tax expense (benefit) based on our interpretation of the tax laws in the various jurisdictions where we conduct business. This requires us to estimate current tax obligations and to assess temporary differences between the financial statement carrying amounts and the tax bases of assets and liabilities. These differences result in current or long-term deferred tax assets and liabilities, the net amount of which we show as a line item on the consolidated balance sheet. All or a portion of the benefit of income tax positions is recognized only when we have made a determination that it is more likely than not that the tax position will be sustained upon examination, based upon the technical merits of the position and other factors. For tax positions that are determined as more likely than not to be sustained upon examination, the tax benefit recognized is the largest amount of benefit that is greater than 50% likely of being realized upon ultimate settlement. We must also assess the likelihood that the deferred tax assets will be realized. To the extent we believe that realization is not more likely than not, we establish a valuation allowance. When we establish a valuation allowance or increase this allowance, we generally record a corresponding income tax expense in the consolidated statement of income in the period of the change. Conversely, to the extent circumstances indicate that realization is more likely than not, the valuation allowance is decreased to the amount realizable, which generates an income tax benefit.	Management must make judgments to determine income tax expense (benefit), deferred tax assets and liabilities and any valuation allowance to be recorded against deferred tax assets. During the ordinary course of business, there are many transactions and calculations for which the ultimate tax determination is uncertain. Changes in our estimates occur periodically due to changes in tax rates, changes in business operations, implementation of tax planning strategies, the expiration of relevant statutes of limitations, resolution with taxing authorities of uncertain tax positions and newly enacted statutory, judicial and regulatory guidance. We record a valuation allowance to reduce deferred tax assets to the amount that is more likely than not to be realized. Significant judgment is required in determining valuation allowances. In evaluating the ability to recover deferred tax assets, we consider all available positive and negative evidence including past operating results, the existence of cumulative losses in the most recent years, forecasted earnings, future taxable income, and prudent and feasible tax planning strategies. In establishing a liability for unrecognized tax benefits, assumptions are made in determining whether, and to what extent, a tax position may be sustained.  It requires significant management judgment regarding applicable statutes and their related interpretation as they apply to our particular facts and circumstances.	Although we believe that our income tax related judgments and estimates are reasonable, it is possible that our actual results could be different than what we expected, and we may be exposed to a material change in our total income tax expense, tax-related balances, or valuation allowances. Upon income tax audit, any unfavorable tax settlement may require use of our cash and result in an increase in our effective tax rate in the period of settlement. A favorable tax settlement could be recognized as a reduction in our effective tax rate in the period of settlement.

New Accounting Standards

See Item 8 – Note 2, “Recent Accounting Pronouncements,” for recently issued accounting standards that have not yet been adopted.

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Liquidity, Capital Resources and Cash Flows

We believe that our cash generating capability, financial condition and operations, together with our revolving credit facility, term loans and notes outstanding, as well as other available methods of financing (including deposits, participation loans, borrowed federal funds, and securitization facilities), will be adequate to fund our cash needs for at least the next 12 months.

Cash Flows

The table below summarizes our cash activities: 

	Year ended December 31,
(In thousands)	2018			2017			2016
Net cash provided by (used for) operating activities	$	400,229		$	135,427		$	(141,186	)
Net cash used for investing activities	$	(254,175	)	$	(168,054	)	$	(1,160,439	)
Net cash (used for) provided by financing activities	$	(102,728	)	$	359,385		$	1,216,081

Operating Activities

• Cash provided by operating activities for 2018increased$264.8 million as compared to the prior year, resulting from lower relative increases in accounts receivable, net of associated accounts payable as compared to the prior year, the return of collateral as a result of contract renegotiations and higher net income adjusted for noncash charges.

• Cash provided by operating activities for 2017 increased$276.6 million as compared to the prior year, primarily due to higher net income adjusted for non-cash charges.

Investing Activities

• Cash used for investing activities for 2018increased$86.1 million as compared to the prior year, resulting from a $162.8 million deposit paid to obtain a customer relationship intangible asset. Capital additions, primarily related to the development of internal-use software as we expand globally and provide competitive products and services to our customers, were generally consistent with 2017.

• Cash used for investing activities for 2017 decreased $992.4 million as compared to the prior year. In 2016, we paid approximately $1.2 billion for EFS, the Company’s largest acquisition to date. Cash used for investing activities in 2017 was due to the acquisition of AOC and capital additions primarily related to the development of internal-use software. These impacts were partly offset by the sale of our Telapoint business after determining that its operations did not align with the core strategy of our Fleet business. The AOC acquisition was funded with cash on hand and through the Company’s 2016 Credit Agreement.

Financing Activities

• Cash used for financing activities for 2018 was $102.7 million as compared to cash provided by financing activities of $359.4 million in the prior year. This was primarily due to net repayments under our 2016 Credit Agreement and our participation debt due to a WEX Bank factoring arrangement entered into in August 2018. These cash outflows were partly offset by $178.0 million of term loan borrowings as a result of the debt repricings in January 2018 and August 2018.

• Cash provided by financing activities for 2017 decreased$856.7 million as compared to the prior year, resulting from lower relative borrowings under the 2016 Credit Agreement. During 2016, we successfully closed our 2016 credit agreement in conjunction with the EFS acquisition.

Liquidity

In general, the Company’s trade receivables provide for payment terms of 30 days or less. Receivables not paid within the terms of the agreement are generally subject to late fees based upon the outstanding receivable balance. The Company extends revolving credit to certain small fleets. These accounts are also subject to late fees, and balances that are not paid in full are subject to interest charges based on a revolving balance. The Company had approximately $18.9 million and $12.2 million of receivables with revolving credit balances as of December 31, 2018 and 2017, respectively.

At December 31, 2018, approximately 95 percent of the outstanding balance of $2.6 billion of total trade accounts receivable was 29 days or less past due and approximately 98 percent of the outstanding balance of total trade accounts receivable was 59 days or less past due. The receivables portfolio consists of a large group of homogeneous smaller balances across a wide

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range of industries. No one customer receivable balance represented 10 percent or more of the outstanding receivables balance at December 31, 2018 or December 31, 2017.

Our short-term cash requirements consist primarily of funding the working capital needs of our business, payments on maturities and withdrawals of brokered deposits and borrowed federal funds, required capital expenditures, repayments on our credit facility, interest payments on our credit facility and other operating expenses. WEX Bank can fund our short-term domestic cash requirements through the issuance of brokered deposits and borrowed federal funds. Any remaining cash needs are primarily funded through operations. Our long-term cash requirements consist primarily of amounts owed on our 2016 Credit Agreement and Notes, amounts due to Wyndham Worldwide Corporation as part of our tax receivable agreement and various facilities lease agreements.

Undistributed earnings of certain foreign subsidiaries of the Company amounted to an estimated $64.9 million and $58.7 million at December 31, 2018 and 2017, respectively. These earnings are considered to be indefinitely reinvested. As discussed above and in Item 8 – Note 14, Income Taxes, the United States enacted the 2017 Tax Act in December 2017, which impacted foreign undistributed earnings, among other things. The 2017 Tax Act imposed a one time “transition tax” on foreign undistributed earnings, which was included with our 2017 U.S. Income Tax Return. The Company offset the transition tax with net operating loss carryforwards and therefore this tax did not result in any additional cash tax payable. In December 2017, the Company reflected an estimate of the transition tax and recorded a provisional transition tax obligation of $9.1 million. In 2018, the Company completed a review of offshore earnings which resulted in a decrease in the tax obligation of $2.0 million. Upon distribution of these earnings in the form of dividends or otherwise, the Company would be subject to withholding taxes payable as applicable, to the various foreign countries, but would have no further federal income tax liability. The Company’s primary tax jurisdictions are the United States, Australia and the United Kingdom.

Earnings outside of the United States are accompanied by certain financial risks, such as changes in foreign currency exchange rates. Changes in foreign currency exchange rates may reduce the reported value of our foreign currency revenues, net of expenses and cash flows. We cannot predict changes in currency exchange rates, the impact of currency exchange rate changes nor the degree to which we will be able to manage the impact of currency exchange rate changes.

Deposits and Borrowed Federal Funds

WEX Bank issues certificates of deposit in various maturities ranging between 6 months and five years, with interest rates ranging from 1.30 percent to 3.52 percent as of December 31, 2018, as compared to interest rates ranging from 1.00 percent to 2.15 percent as of December 31, 2017. As of December 31, 2018, we had approximately $850.8 million of certificates of deposit outstanding at a weighted average interest rate of 2.36 percent, compared to $937.7 million of certificates of deposit outstanding at a weighted average interest rate of 1.51 percent as of December 31, 2017.

WEX Bank also issues interest-bearing money market deposits with variable interest rates ranging from 2.48 percent to 2.53 percent as of December 31, 2018, as compared to variable interest rates ranging from 1.24 percent to 1.55 percent as of December 31, 2017. As of December 31, 2018, we had approximately $283.8 million of interest-bearing brokered money market deposits at a weighted average interest rate of 2.49 percent, compared to $285.9 million of interest-bearing brokered money market deposits at a weighted average interest rate of 1.49 percent as of December 31, 2017.

WEX Bank may issue additional brokered deposits without limitation, subject to FDIC rules governing minimum financial ratios, which include risk-based asset and capital requirements. As of December 31, 2018, all brokered deposits were in denominations of $250 thousand or less, corresponding to FDIC deposit insurance limits. Interest-bearing money market funds may be withdrawn at any time. We believe that our brokered deposits are paying competitive yields and that there continues to be consumer demand for these instruments.

We also carry non-interest bearing deposits that are required for certain customers as collateral for their credit accounts. We had $138.1 million and $70.2 million of these deposits on hand at December 31, 2018 and 2017, respectively.

WEX Bank is required to maintain reserves against a percentage of certain customer deposits by keeping balances with the Federal Reserve Bank. The required reserve based on the outstanding customer deposits was $11.1 million and $8.4 million at December 31, 2018 and 2017, respectively.

WEX Bank also borrows from uncommitted federal funds lines of credit to supplement the financing of our accounts receivable. Our federal funds lines of credit were $309.0 million and $275.0 million as of December 31, 2018 and 2017, respectively, with no outstanding borrowings as of both December 31, 2018, and December 31, 2017.

WEX Bank participates in the ICS service offered by Promontory Interfinancial Network, which allows WEX Bank to purchase brokered money market demand accounts and demand deposit accounts in an amount not to exceed $125.0 million as

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part of a one-way buy program. At December 31, 2017, there was no outstanding balance for ICS purchases. At December 31, 2018, no amounts were available under this arrangement. Subsequently, the funding capacity of $125.0 million was reinstated.

2016 Credit Agreement

On July 1, 2016, we entered into the 2016 Credit Agreement in order to permit the additional financing necessary to facilitate the EFS acquisition. The 2016 Credit Agreement provided for secured tranche A and tranche B term loan facilities in the original principal amount equal to $455.0 million and $1,200.0 million, respectively, and a $470.0 million secured revolving credit facility. Effective July 3, 2017, the Company entered into a First Amendment to the 2016 Credit Agreement, which repriced the secured term loans under the 2016 Credit Agreement. The consolidated leverage ratio as defined in the 2016 Credit Agreement (i.e. consolidated funded indebtedness to consolidated EBITDA), was also modified for purposes of calculating the interest rate margin for tranche A term loans and revolving loans and determining compliance with the financial covenant by allowing the Company to exclude up to $75 million of certain corporate cash balances for purposes of determining consolidated funded indebtedness. Effective October 30, 2017, the Company entered into a Second Amendment to the 2016 Credit Agreement, which added $100.0 million of capacity to its revolving line of credit to provide additional liquidity and flexibility during 2017.

On January 17, 2018, the Company entered into a Third Amendment to the 2016 Credit Agreement, which increased the outstanding amounts on the tranche B term loan by $153.0 million, reduced the applicable interest rate margin for the tranche B term loan and amended certain aspects of the financial covenants. On August 24, 2018, the Company entered into a Fourth Amendment to the 2016 Credit Agreement, which increased the amount available under the revolving credit facility by $150.0 million, provided for an additional tranche A term loan in the amount of $25.0 million, reduced the applicable interest rate margin at current levels for the Company’s revolving credit loans, extended the maturity date for the revolving credit facility and tranche A term loan to July 1, 2023, and amended certain aspects of the financial covenants. After giving effect to these amendments, the 2016 Credit Agreement provides for a secured tranche A term loan in the original principal amount of $480.0 million, a secured tranche B term loan in the original principal amount of $1,335.0 million and a $720.0 million secured revolving credit facility, with a $250.0 million sublimit for letters of credit and $20.0 million sublimit for swingline loans. Under the 2016 Credit Agreement, the Company has granted a security interest in certain assets of the Company, subject to exceptions including the assets of WEX Bank.

Following the August 2018 repricing, the applicable interest rate margin for the revolving credit loans and tranche A term loans was 2.00% for LIBOR borrowings and 1.00% for base rate borrowings, and the applicable interest rate margin for tranche B term loans was 2.25% for LIBOR borrowings and 1.25% for base rate borrowings.

On January 18, 2019, the Company entered into a Fifth Amendment to the 2016 Credit Agreement, which provides for an additional tranche A term loan in the principal amount of $300 million, increasing the outstanding principal on the tranche A term loans to $723.7 million. In addition, subject to certain conditions, the amendment provides delayed draw commitments for an incremental $275.0 million tranche A term loan and an incremental $25 million of revolving credit commitments (subject to conversion of the delayed draw incremental tranche A term loan commitments and incremental revolving credit commitments to commitments of the other type). On March 5, 2019, the Company fully drew down this commitment, consisting of $250.0 million in tranche Aterm loans and an incremental $50.0 million of revolving credit loans in order to fund the acquisition of Discovery Benefits.

    Incremental loans of up to the greater of $375.0 million (plus the amount of certain prepayments) and an unlimited amount subject to satisfaction of a consolidated leverage ratio test could be made available under the 2016 Credit Agreement upon the request of the Company subject to specified terms and conditions, including receipt of lender commitments. Proceeds from the 2016 Credit Agreement may be used for working capital purposes, acquisitions, payment of dividends and other restricted payments, refinancing of indebtedness and other general corporate purposes.

The 2016 Credit Agreement contains various financial covenants requiring us to maintain certain financial ratios. In addition to the financial covenants, the 2016 Credit Agreement contains various customary restrictive covenants including restrictions in certain situations on the payment of dividends. WEX Bank is not subject to certain of these restrictions. We were in compliance with all material covenants and restrictions at December 31, 2018.

As of December 31, 2018, we had no outstanding borrowings against our $720.0 million revolving credit facility, which terminates in July of 2023. The combined outstanding debt under our tranche A term loan facility and our tranche B term loan facility, both of which expire in July 2023, totaled $1.7 billion at December 31, 2018. As of December 31, 2018, amounts outstanding under the 2016 Credit Agreement bore a weighted average effective interest rate of 4.7 percent.

See Item 8 – Note 15, Financing and Other Debt, for further information regarding interest rates, voluntary prepayments rights and principal payments required under the 2016 Credit Agreement.

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Ticking Fees

In January 2016, we began to incur ticking fees for the debt financing commitment associated with the 2016 Credit Agreement in anticipation of the then pending acquisition of EFS. Through June 30, 2016, we recorded $30 million of ticking fees, which are included in financing interest expense. These ticking fees were calculated based on the financing commitment of an aggregate principal amount of $2.125 billion that remained in place until the closing of the EFS acquisition on July 1, 2016. The total amount of ticking fees paid at the closing of the EFS acquisition was $22.2 million. The excess ticking fees of $7.9 million were netted against the net debt issuance costs related to the 2016 Credit Agreement and will be amortized over the 2016 Credit Agreement’s terms using the effective interest method for the tranche A and B term loans and the revolver.

Notes Outstanding

On January 30, 2013, the Company completed an offering of Notes at an issue price of 100.0 percent of the principal amount of $400 million, plus accrued interest, from January 30, 2013.

WEX Latin America Debt

WEX Latin America had debt of approximately $16.2 million and $9.7 million as of December 31, 2018 and 2017, respectively. This is comprised of credit facilities held in Brazil and loan arrangements related to our accounts receivable, with various maturity dates. As of December 31, 2018 and 2017, the interest rate was 23.59% and 24.10%, respectively.

Participation Debt

Historically, WEX Bank maintained three separate participation agreements with third-party banks to fund customer balances that exceeded WEX Bank’s lending limit to an individual customer. In June 2018, WEX Bank entered into a fourth participation agreement with a third-party bank to fund an additional customer’s balance. Associated unsecured borrowings carry a variable interest rate of 1 month to 3 month LIBOR plus a margin of 225 basis points. The Company had funding capacity of $180.0 million at December 31, 2018 under these agreements, which terminate on June 30, 2019, August 31, 2020, and on demand. Amounts outstanding under the participation agreements as of December 31, 2018 were $64.8 million and $50.0 million and were recorded in short-term debt, net and long-term debt, net, respectively. Amounts outstanding under the participation agreements were $135.0 million and $50.0 million and recorded in short-term debt, net and long-term debt, net, respectively, as of December 31, 2017.

Australian Securitization Facility

The Company maintains a securitized debt agreement with the Bank of Tokyo-Mitsubishi UFJ, Ltd., which expires April 2019. Under the terms of the agreement, each month, on a revolving basis, the Company sells certain of its Australian receivables to the Company’s Australian Securitization Subsidiary. The Australian Securitization Subsidiary, in turn, uses the receivables as collateral to issue asset-backed commercial paper (“securitized debt”) for approximately 85 percent of the securitized receivables. The amount collected on the securitized receivables is restricted to pay the securitized debt and is not available for general corporate purposes.

The Company pays a variable interest rate on the outstanding balance of the securitized debt, based on the Australian Bank Bill Rate plus an applicable margin. The interest rate was 2.89 percent and 2.53 percent as of December 31, 2018 and 2017, respectively. The Company had securitized debt under this facility of approximately $87.0 million and $90.0 million as of December 31, 2018 and 2017, respectively.    

European Securitization Facility

On April 7, 2016, the Company entered into a five-year securitized debt agreement with the Bank of Tokyo-Mitsubishi UFJ, Ltd. Under the terms of the agreement, the Company sells certain of its receivables from selected European countries to our European Securitization Subsidiary. The European Securitization Subsidiary, in turn, uses the receivables as collateral to issue securitized debt. The amount collected on the securitized receivables is restricted to pay the securitized debt and is not available for general corporate purposes. The interest rate was 0.98 percent and 1.11 percent as of December 31, 2018 and December 31, 2017, respectively. The Company had $18.0 million and $17.9 million of securitized debt under this facility as of December 31, 2018 and December 31, 2017, respectively.

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WEX Latin America Securitization of Receivables

During the second quarter of 2017, WEX Latin America entered into a securitized debt agreement to transfer certain unsecured receivables associated with our salary payment card product to an investment fund managed by an unrelated third-party financial institution. As of December 31, 2017 and through June 30, 2018, this securitization arrangement did not meet the derecognition conditions due to WEX Latin America’s continuing involvement with the transferred assets and accordingly WEX Latin America reported the transferred receivables and securitized debt on our consolidated balance sheets.

During 2017, WEX Latin America securitized approximately $49.1 million of receivables to the investment fund for cash proceeds of approximately $43.8 million. This $5.3 million discount was recognized as operating interest in the Company’s consolidated statements of income using the effective interest method over the weighted average term of the salary advances. The Company had $30.1 million and $19.0 million of securitized debt under this facility as of June 30, 2018 and December 31, 2017, respectively.

During the third quarter of 2018, the securitization agreements were amended, resulting in the Company giving up effective control of the transferred receivables to the buyer. Additionally, the Company received a true-sale opinion from an independent attorney stating that the amended agreements provide legal isolation upon WEX Latin America bankruptcy or receivership under local law. As such, the securitization arrangement meets the derecognition conditions and transfers under this arrangement are treated as a sale and are accounted for as a reduction in trade receivables.    

During the year ended December 31, 2018, the Company sold approximately $39.8 million of receivables and recognized a $6.9 million gain on sale of receivables, consisting of the difference between the sales price and the carrying value of the receivables, which is recorded within other revenue in our consolidated income statement. Cash proceeds from the transfer of these receivables is reflected as an operating activity within our consolidated statement of cash flows.

WEX Bank Accounts Receivable Factoring

In August 2018, WEX Bank entered into a receivables purchase agreement with an unrelated third-party financial institution to sell certain of our trade receivables under non-recourse transactions. WEX Bank continues to service the receivables post-transfer with no participating interest. The Company obtained a true-sale opinion from an independent attorney, which states that the factoring agreement provides legal isolation upon WEX Bank bankruptcy or receivership under local law. As such, transfers under this arrangement are treated as a sale. Proceeds from the sale are reported net of a negotiated discount rate and are accounted for as a reduction in trade receivables because the agreements transfer effective control of the receivables to the buyer.

The Company sold approximately $3.2 billion of receivables under this arrangement during year ended December 31, 2018. Proceeds from the sale, which are reported net of a negotiated discount rate, are recorded in operating activities within the Company’s consolidated statement of cash flows. The loss on factoring was not material for the year ended December 31, 2018.

WEX Europe Services Accounts Receivable Factoring

During the first quarter of 2017, WEX Europe Services entered into a factoring arrangement with an unrelated third-party financial institution (the “Purchasing Bank”) to sell certain of its accounts receivable in order to accelerate the collection of the Company’s cash and reduce internal costs, thereby improving liquidity. Under this arrangement, the Purchasing Bank establishes a credit limit for each customer account. The factored receivables are without recourse to the extent that the customer balances are maintained at or below the established credit limit. For customer receivable balances in excess of the Purchasing Bank’s credit limit, the Company maintains the risk of default. The Company obtained a true sale opinion from an independent attorney, which states that the factoring agreement creates a sale of receivables under local law for amounts transferred both below and above the established credit limits. Additionally, there are no indications of the Company’s continuing involvement in the factored receivables. As a result, the Purchasing Bank is deemed the purchaser of these receivables and is entitled to enforce payment of these amounts from the debtor.

This factoring arrangement is accounted for as a sale and accordingly the Company records the receivables sold as a reduction of accounts receivable and proceeds as cash provided by operating activities. The Company sold approximately $713.8 million and $574.4 million of receivables under this arrangement during years ended December 31, 2018 and December 31, 2017, respectively. Charge-backs on balances in excess of the credit limit during the years ended December 31, 2018 and December 31, 2017 were insignificant.

Other Liquidity Matters

At December 31, 2018, we had variable-rate borrowings of $1.7 billion under our 2016 Credit Agreement. We periodically review our projected borrowings under our 2016 Credit Agreement and the current interest rate environment in order to ascertain

65

whether interest rate swaps should be used to reduce our exposure to interest rate volatility. As of December 31, 2018, we maintained four interest rate swap contracts that mature between December 2020 and December 2022. Collectively, these derivative contracts are intended to fix the future interest payments associated with $1.0 billion of our variable rate borrowings at between 1.108 percent to 2.212 percent. After December 31, 2018, the Company entered into three additional interest rate swap contracts. See Item 8 – Note 12, Derivative Instruments, Item 8 – Note 18, Fair Value and Item 8 – Note 25, Subsequent Events for more information.

We discuss our hedging strategies relative to commodity and interest rate risk in Item 7A below.

The Company’s long-term cash requirements consist primarily of amounts owed on the 2016 Credit Agreement, the Notes and the amounts due to Wyndham Worldwide Corporation (see Item 8 – Note 16, Tax Receivable Agreement) as part of its tax receivable agreement and various facility lease agreements.

As of December 31, 2018, we had $53.5 million in letters of credit outstanding and $666.5 million in remaining borrowing capacity under the 2016 Credit Agreement, subject to the covenants as described above.

We currently have authorization from our Board to purchase up to $150 million of our common stock until September 2021, which is entirely unused as of December 31, 2018. The program is funded either through our future cash flows or through borrowings on our 2016 Credit Agreement. Share repurchases are made on the open market and may be commenced or suspended at any time. The Company’s management, based on its evaluation of market and economic conditions and other factors, determines the timing and number of shares repurchased.

Contractual Obligations

The table below summarizes the estimated dollar amounts of payments under contractual obligations as of December 31, 2018, for the periods specified:

	Payments Due By Period
(In thousands)	Total		Less than 1 Year		1-3 Years		3-5 Years		More Than 5 Years
Operating Lease Obligations(a)	$	137,437	$	14,794	$	31,206	$	25,809	$	65,628
Debt Obligations
Term Loans	1,745,084		35,278		70,557		1,639,249		—
Interest payments on term loans(b)	352,505		81,190		157,406		113,909		—
$400 million notes offering	400,000		—		—		400,000		—
Interest on $400 million notes offering	77,583		19,000		38,000		20,583		—
Other debt(c)	131,091		81,091		50,000		—		—
Securitization facility(d)	106,872		106,872		—		—		—
Other Commitments
Certificates of deposit	850,813		505,582		345,231		—		—
Minimum volume purchase commitments(e)	170,501		170,501		—		—		—
Tax receivable agreement(f)	13,571		10,771		2,800		—		—
Total	$	3,985,457	$	1,025,079	$	695,200	$	2,199,550	$	65,628

^(a) Operating lease obligations – We lease office space and equipment under long-term operating leases. See Item 8 – Note 19, Commitments and Contingencies, for more information.

^(b)Interest payments on term loans– Interest payments are based on effective rates and credit spreads in effect as of December 31, 2018. See Item 8 – Note 15, Financing and Other Debt, for more information.

^(c) Other debt– This amount consists of participation debt at WEX Bank and debt balances at one of the Company’s subsidiaries. Interest payments due were not included as the amount was not material.

^(d) Securitization facility – Interest payments due on the securitization facility are not included as the amount was not material.

^(e) Minimum volume purchase commitments– One of the Company’s subsidiaries is required to purchase a minimum amount of fuel from their suppliers on an annual basis. If the minimum requirement is not fulfilled, they are subject to penalties based on the amount of spend below the minimum annual volume commitment. Starting in 2020, annual volume commitments reset based on prior year volume purchased. The table above represents the Company’s annual penalty assuming we purchase no fuel under these commitments after December 31, 2018.

66

^(f) Tax receivable agreement– As a consequence of the Company’s separation from its former parent company in 2005, the tax basis of the Company’s net tangible and intangible assets increased, reducing the amount of tax that the Company would pay in the future to the extent the Company generated taxable income in sufficient amounts. The Company is contractually obligated to remit a portion of any such cash savings to a third party. The estimate of payments owed is reflected as Amounts due under tax receivable agreement on the consolidated balance sheets. See Item 8 – Note 16, Tax Receivable Agreement, for more information.

The Company has excluded $9.0 million in gross unrecognized tax benefits as of December 31, 2018 from the table above due to the uncertainty about the timing of payments to the taxing authority.

Off-balance Sheet Arrangements

In addition to the operating leases included in the table above, we have the following off-balance sheet arrangements as of December 31, 2018:

• Extension of credit to customers – We have entered into commitments to extend credit in the ordinary course of business. We had approximately $7.0 billion of unused commitments to extend credit at December 31, 2018, as part of established customer agreements. These amounts may increase or decrease during 2019 as we increase or decrease credit to customers, subject to appropriate credit reviews, as part of our lending product agreements. Many of these commitments are not expected to be utilized. We can adjust most of our customers’ credit lines at our discretion at any time. Therefore, we do not believe total unused credit available to customers and customers of strategic relationships represents future cash requirements. We believe that we can adequately fund actual cash requirements related to these credit commitments through the issuance of certificates of deposit, borrowed federal funds and other debt facilities.

• Letters of credit – As of December 31, 2018, we had $53.5 million outstanding in irrevocable letters of credit issued by us in favor of third-party beneficiaries, primarily related to facility lease agreements and virtual card and fuel payment processing activity at our foreign subsidiaries. These irrevocable letters of credit are unsecured and are renewed on an annual basis unless the Company chooses not to renew them.

• Accounts receivable factoring and securitization – See Item 8 – Note 13, Off-Balance Sheet Arrangements, for further information.

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ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

The Company is exposed to market risk related to interest rates, foreign currency exchange rates and commodity prices. From time to time, the Company enters into derivative instrument arrangements to manage these risks.

Interest Rate Risk

2016 Credit Agreement

At December 31, 2018, we had variable-rate borrowings of $1.7 billion under our 2016 Credit Agreement. We periodically review the projected borrowings under our 2016 Credit Agreement and the current interest rate environment in order to ascertain whether interest rate swaps should be used to reduce our exposure to interest rate volatility. During 2016 and 2017, we entered into five interest rate swap contracts, one of which matured in December 2018. As of December 31, 2018, these derivative contracts are intended to fix the future interest payments associated with $1.0 billion of our variable rate borrowings at between 1.108% to 2.212% and expire at various dates through December 2022. See Item 8 – Note 12, Derivative Instruments, for more information.

Deposits

At December 31, 2018, WEX Bank had deposits (including certificates of deposits and interest bearing money market deposits) outstanding of $1.3 billion. The deposits are generally short-term in nature, though they are issued in up to five-year maturities. Upon maturity, the deposits will likely be replaced by issuing new deposits to the extent they are needed.

Sensitivity Analysis

The following table presents a sensitivity analysis of the impact of changes in interest rates on our deposits and corporate debt, assuming amounts outstanding, the notional amounts of our interest rate swap agreements, and certificate of deposit maturities in place as of December 31, 2018 remain constant. Actual results may differ materially.

	2019 impact of 1.00% increase in interest rates
2016 Credit Agreement	$	6,951
Securitized debt	$	1,069
Participation agreements	$	1,148
Certificates of deposits	$	2,247
Money market deposits	$	2,838

Foreign Currency Risk

Our exposure to foreign currency fluctuation is due to our financial statements being presented in U.S. dollars and our foreign subsidiaries transacting in currencies other than the U.S. dollar, which results in gains and losses that are reflected in our consolidated statements of operations. We currently do not utilize hedging instruments to mitigate these risks. However, growth in our international operations increases this exposure and we may initiate strategies to hedge certain foreign currency risks in the future.

Commodity Price Risk

Since the first quarter of 2016, we are not hedged for changes in fuel prices. Management will continue to monitor the fuel price market and evaluate its alternatives as it relates to this hedging program.

68

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Index to Consolidated Financial Statements

Report of Independent Registered Public Accounting Firm	70
Consolidated Statements of Income for the Years Ended December 31, 2018, 2017 and 2016	71
Consolidated Statements of Comprehensive Income (Loss) for the Years Ended December 31, 2018, 2017 and 2016	72
Consolidated Balance Sheets at December 31, 2018 and 2017	73
Consolidated Statements of Stockholders’ Equity for the Years Ended December 31, 2018, 2017 and 2016	74
Consolidated Statements of Cash Flows for the Years Ended December 31, 2018, 2017 and 2016	75
Notes to Consolidated Financial Statements	77

69

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of WEX Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of WEX Inc. and subsidiaries (the "Company") as of December 31, 2018 and 2017, the related consolidated statements of income, comprehensive income (loss), stockholders' equity, and cash flows, for each of the three years in the period ended December 31, 2018, and the related notes (collectively referred to as the "financial statements"). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2018 and 2017, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2018, in conformity with accounting principles generally accepted in the United States of America.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2018, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated March 18, 2019, expressed an adverse opinion on the Company's internal control over financial reporting because of material weaknesses.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

/s/ Deloitte & Touche LLP

Boston, Massachusetts

March 18, 2019

We have served as the Company's auditor since 2003.

70

WEX INC.

CONSOLIDATED STATEMENTS OF INCOME

(in thousands, except per share data)

	Year ended December 31,
	2018			2017			2016
Revenues
Payment processing revenue	$	723,991		$	569,166		$	520,619
Account servicing revenue	308,096			276,570			211,012
Finance fee revenue	208,627			188,792			132,968
Other revenue	251,925			214,049			147,889
Total revenues	$	1,492,639		$	1,248,577		$	1,012,488
Cost of services
Processing costs	309,450			278,056			270,717
Service fees	53,655			72,957			79,367
Provision for credit losses	66,482			64,218			33,458
Operating interest	38,407			24,993			12,386
Depreciation and amortization	79,935			74,061			62,879
Total cost of services	547,929			514,285			458,807
General and administrative	209,319			184,339			185,557
Sales and marketing	229,234			163,654			130,827
Depreciation and amortization	119,870			129,663			78,772
Impairment charges and asset write-offs	5,649			44,171			—
Gain on divestiture	—			(20,958		)	—
Operating income	380,638			233,423			158,525
Financing interest expense	(105,023		)	(107,067		)	(113,418		)
Net foreign currency (loss) gain	(38,800		)	31,487			(9,233		)
Net realized and unrealized gains on fuel price derivatives	—			—			711
Non-cash adjustments related to tax receivable agreement	(775		)	15,259			(563		)
Net unrealized gain on financial instruments	2,579			1,314			12,908
Income before income taxes	238,619			174,416			48,930
Income taxes	68,843			15,450			28,592
Net income	169,776			158,966			20,338
Less: Net income (loss) from non-controlling interest	1,481			(1,096		)	(3,161		)
Net income attributable to shareholders	$	168,295		$	160,062		$	23,499
Net income attributable to WEX Inc. per share:
Basic	$	3.90		$	3.72		$	0.58
Diluted	$	3.86		$	3.71		$	0.57
Weighted average common shares outstanding:
Basic	43,156			42,977			40,809
Diluted	43,574			43,105			40,914

See notes to consolidated financial statements.

71

WEX INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(in thousands)

	Year ended December 31,
	2018			2017			2016
Net income	$	169,776		$	158,966		$	20,338
Changes in investment securities, net of tax benefit of $3 in 2017 and $144 in 2016	—			(5		)	(251		)
Foreign currency translation	(28,535		)	34,295			(28,411		)
Comprehensive income (loss)	141,241			193,256			(8,324		)
Less: Comprehensive income (loss) attributable to non-controlling interest	1,007			(1,554		)	(1,778		)
Comprehensive income (loss) attributable to WEX Inc.	$	140,234		$	194,810		$	(6,546	)

See notes to consolidated financial statements.

72

WEX INC.

CONSOLIDATED BALANCE SHEETS

(in thousands, except per share data)

	December 31,
	2018			2017
Assets
Cash and cash equivalents	$	541,498		$	503,519
Restricted cash	13,533			18,866
Accounts receivable (net of allowances of $46,948 in 2018 and $33,387 in 2017)	2,584,203			2,455,907
Securitized accounts receivable, restricted	109,871			150,235
Prepaid expenses and other current assets	149,021			77,532
Total current assets	3,398,126			3,206,059
Property, equipment and capitalized software (net of accumulated depreciation of $307,750 in 2018 and $264,928 in 2017)	187,868			163,908
Goodwill	1,832,129			1,876,132
Other intangible assets (net of accumulated amortization of $509,055 in 2018 and $392,827 in 2017)	1,034,194			1,154,047
Investment securities	24,406			23,358
Deferred income taxes, net	9,643			7,721
Other assets	284,229			257,641
Total assets	$	6,770,595		$	6,688,866
Liabilities and Stockholders’ Equity
Accounts payable	$	814,742		$	843,180
Accrued expenses	325,801			315,346
Short-term deposits	927,444			986,989
Short-term debt, net	216,517			397,218
Other current liabilities	27,067			33,123
Total current liabilities	2,311,571			2,575,856
Long-term debt, net	2,133,923			2,027,752
Long-term deposits	345,231			306,865
Deferred income taxes, net	151,685			116,248
Other liabilities	32,261			32,045
Total liabilities	4,974,671			5,058,766
Commitments and contingencies (Note 19)
Stockholders’ Equity
Common stock $0.01 par value; 175,000 shares authorized; 47,557 issued in 2018 and 47,352 in 2017; 43,129 shares outstanding in 2018 and 43,022 in 2017	475			473
Additional paid-in capital	593,262			569,319
Retained earnings	1,481,593			1,312,660
Accumulated other comprehensive loss	(117,291		)	(89,230		)
Treasury stock at cost; 4,428 shares in 2018 and 2017	(172,342		)	(172,342		)
Total WEX Inc. stockholders’ equity	1,785,697			1,620,880
Non-controlling interest	10,227			9,220
Total stockholders’ equity	1,795,924			1,630,100
Total liabilities and stockholders’ equity	$	6,770,595		$	6,688,866

See notes to consolidated financial statements.

73

WEX INC.

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(in thousands)

	Common Stock Issued			Additional Paid-in Capital			Accumulated Other Comprehensive Loss			Treasury Stock			Retained Earnings			Non-Controlling Interest			Total Stockholders’ Equity
	Shares	Amount
Balance at January 1, 2016	43,079	$	431	$	174,972		$	(93,933	)	$	(172,342	)	$	1,128,953		$	12,437		$	1,050,518
Stock issued	82	1		299			—			—			—			—			300
Share repurchases for tax withholdings	—	—		(2,200		)	—			—			—			—			(2,200		)
Stock-based compensation expense	—	—		19,742			—			—			—			—			19,742
Tax deficiency from stock options and restricted stock units	—	—		(99		)	—			—			—			—			(99		)
Stock issued for July 1, 2016 purchase of EFS	4,012	40		354,913			—			—			—			—			354,953
Changes in investment securities, net of tax benefit of $144	—	—		—			(251		)	—			—			—			(251		)
Foreign currency translation	—	—		—			(29,794		)	—			—			1,383			(28,411		)
Net income (loss)	—	—		—			—			—			23,499			(3,161		)	20,338
Balance at December 31, 2016	47,173	$	472	$	547,627		$	(123,978	)	$	(172,342	)	$	1,152,452		$	10,659		$	1,414,890
Cumulative-effect adjustment 1	—	—		—			—			—			261			—			261
Balance at January 1, 2017	47,173	$	472	$	547,627		$	(123,978	)	$	(172,342	)	$	1,152,713		$	10,659		$	1,415,151
Other	—	—		—			—			—			(115		)	115			—
Stock issued	178	1		732			—			—			—			—			733
Share repurchases for tax withholdings	—	—		(9,527		)	—			—			—			—			(9,527		)
Stock-based compensation expense	1	—		30,487			—			—			—			—			30,487
Changes in investment securities, net of tax benefit of $3	—	—		—			(5		)	—			—			—			(5		)
Foreign currency translation	—	—		—			34,753			—						(458		)	34,295
Net income (loss)	—	—		—			—			—			160,062			(1,096		)	158,966
Balance at December 31, 2017	47,352	$	473	$	569,319		$	(89,230	)	$	(172,342	)	$	1,312,660		$	9,220		$	1,630,100
Cumulative-effect adjustment 2	—	—		—			—			—			638			—			638
Balance at January 1, 2018	47,352	$	473	$	569,319		$	(89,230	)	$	(172,342	)	$	1,313,298		$	9,220		$	1,630,738
Stock issued	205	2		2,428			—			—			—			—			2,430
Share repurchases for tax withholdings	—	—		(12,372		)	—			—			—			—			(12,372		)
Stock-based compensation expense	—	—		33,887			—			—			—			—			33,887
Foreign currency translation	—	—		—			(28,061		)	—			—			(474		)	(28,535		)
Net income	—	—		—			—			—			168,295			1,481			169,776
Balance at December 31, 2018	47,557	$	475	$	593,262		$	(117,291	)	$	(172,342	)	$	1,481,593		$	10,227		$	1,795,924

¹ Includes the impact of modified retrospective transition as part of the Company’s adoption of ASU 2016–09 to recognize previously disallowed excess tax benefits that increased a net operating loss.

² Includes the impact of the Company’s modified retrospective adoption as part of Topic 606.

See notes to consolidated financial statements.

74

WEX INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

	Year ended December 31,
	2018			2017			2016
Cash flows from operating activities
Net income	$	169,776		$	158,966		$	20,338
Adjustments to reconcile net income to net cash provided by operating activities:
Net unrealized loss (gain)	21,924			12,565			(21,271		)
Stock-based compensation	33,887			30,487			19,742
Depreciation and amortization	199,805			203,724			141,651
Ticking fees expensed	—			—			30,045
Debt restructuring and debt issuance cost amortization	9,674			7,957			12,673
Gain on divestiture	—			(20,958		)	—
Provision for deferred taxes	31,334			(4,234		)	19,499
Provision for credit losses	66,482			64,218			33,458
Impairment charges and asset write-offs	5,649			44,171			—
Non-cash adjustments related to tax receivable agreement	775			(15,259		)	—
Changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable and securitized accounts receivable	(201,637		)	(540,470		)	(389,157		)
Prepaid expenses and other current and other long-term assets	68,014			(3,043		)	(59,255		)
Accounts payable	(3,588		)	195,773			66,184
Accrued expenses	8,654			(2,378		)	1,669
Income taxes	(2,107		)	9,484			(14,614		)
Other current and other long-term liabilities	(8,413		)	(5,576		)	(2,148		)
Net cash provided by (used for) operating activities	400,229			135,427			(141,186		)
Cash flows from investing activities
Purchases of property, equipment and capitalized software	(87,152		)	(79,276		)	(61,799		)
Purchase of equity investment	(2,771		)	(4,553		)	—
Purchases of investment securities	(1,768		)	(474		)	(5,853		)
Maturities of investment securities	266			631			495
Acquisition and investment, net cash	(162,750		)	(114,282		)	(1,093,282		)
Proceeds from divestiture	—			29,900			—
Net cash used for investing activities	(254,175		)	(168,054		)	(1,160,439		)
Cash flows from financing activities
Excess tax benefits from equity instrument share-based payment arrangements	—			—			597
Repurchase of share-based awards to satisfy tax withholdings	(12,372		)	(9,527		)	(2,200		)
Proceeds from stock option exercises	2,430			733			300
Net change in deposits	(20,360		)	173,052			248,926
Net activity on other debt	(62,290		)	68,525			62,474
Borrowings on revolving credit facility	1,570,983			4,367,168			3,505,732
Repayments on revolving credit facility	(1,707,478		)	(4,239,241		)	(3,707,248		)
Borrowings on term loans	178,000			—			1,643,000
Repayments on term loans	(35,791		)	(34,750		)	(476,126		)
Debt issuance costs	(5,841		)	(985		)	(40,868		)
Net change in securitized debt	(10,009		)	34,410			3,665
Ticking fees paid	—			—			(22,171		)
Net cash (used for) provided by financing activities	(102,728		)	359,385			1,216,081
Effect of exchange rates on cash, cash equivalents and restricted cash	(10,680		)	(17,715		)	2,791
Net change in cash, cash equivalents and restricted cash	32,646			309,043			(82,753		)
Cash, cash equivalents and restricted cash, beginning of year(a)	522,385			213,342			296,095
Cash, cash equivalents and restricted cash, end of year(a)	$	555,031		$	522,385		$	213,342

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Supplemental cash flow information
Interest paid	$	141,476	$	128,888	$	116,272
Income taxes paid	$	39,225	$	6,679	$	23,946
Supplemental disclosure of non-cash investing and financing activities
Capital expenditures incurred but not paid	$	8,569	$	4,596	$	10,900
Issuance of common stock in a business combination	$	—	$	—	$	354,953

^(a) The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within our consolidated balance sheets to amounts within our consolidated statements of cash flows for the years ended December 31, 2018, 2017 and 2016:

	December 31,
	2018		2017		2016
Cash and cash equivalents at beginning of year	$	503,519	$	190,930	$	278,158
Restricted cash at beginning of year	18,866		22,412		17,937
Cash, cash equivalents and restricted cash at beginning of year	$	522,385	$	213,342	$	296,095
Cash and cash equivalents at end of year	$	541,498	$	503,519	$	190,930
Restricted cash at end of year	13,533		18,866		22,412
Cash, cash equivalents and restricted cash at end of year	$	555,031	$	522,385	$	213,342

See notes to consolidated financial statements.

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1. Summary of Significant Accounting Policies

Business Description

WEX Inc. (“Company”, “we” or “our”) is a provider of corporate card payment solutions. The Company provides products and services that meet the needs of businesses in various geographic regions including North and South America, Asia Pacific and Europe. The Company’s Fleet Solutions, Travel and Corporate Solutions, and Health and Employee Benefit Solutions segments provide their customers with security and control for complex payments across a wide spectrum of business sectors. The Company markets its products and services directly, as well as through strategic relationships which include major oil companies, fuel retailers, vehicle maintenance providers, online travel agencies and health partners.

Basis of Presentation

The accompanying consolidated financial statements for the years ended December 31, 2018, 2017 and 2016, include the accounts of the Company and its wholly and majority-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.

The Company rounds amounts in the consolidated financial statements to thousands within tables and millions within text (unless otherwise specified), and calculates all percentages and per-share data from underlying whole-dollar amounts. Thus, certain amounts may not foot, crossfoot, or recalculate based on reported numbers due to rounding.

Revision of Prior Period Financial Statements for Correction of Immaterial Errors

During the Company’s 2018 year-end close process, management identified immaterial errors in the financial statements of our Brazilian subsidiary that were consolidated into certain of our previously filed financial statements. These errors, which began to be made before 2015, are primarily related to accounts receivable and accounts payable in Brazil in our Fleet Solutions segment. Our financial statements have been revised to correct these errors. Additionally, because we are revising our financial statements to correct these errors, we determined to also revise the financial statements to correct other immaterial errors impacting prior years that were not previously recorded. Collectively, hereinafter these revisions to correct are referred to as the “Revised” financial statements and “Revision”. Management believes that the effects of this Revision are not material to our previously issued consolidated financial statements.

    The effects of the Revision on our consolidated statements of income were as follows:

	Year Ended December 31, 2017
(In thousands, except per share data)	As Previously Reported		Brazil Adjustments			Other Immaterial Adjustments			As Revised
Total revenues	$	1,250,548	$	(3,325	)	$	1,354		$	1,248,577
Processing costs	$	279,497	$	(1,441	)	$	—		$	278,056
Provision for credit losses	$	61,148	$	3,070		$	—		$	64,218
General and administrative	$	182,092	$	—		$	2,247		$	184,339
Net foreign currency gain	$	29,919	$	—		$	1,568		$	31,487
Income taxes	$	19,525	$	(2,023	)	$	(2,052	)	$	15,450
Net income	$	159,170	$	(2,931	)	$	2,727		$	158,966
Net income attributable to shareholders	$	160,266	$	(2,931	)	$	2,727		$	160,062
Net income attributable to WEX Inc. per share
Basic	$	3.73	$	(0.07	)	$	0.06		$	3.72
Diluted	$	3.72	$	(0.07	)	$	0.06		$	3.71

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	Year Ended December 31, 2016
(In thousands, except per share data)	As Previously Reported			Brazil Adjustments			Other Immaterial Adjustments			As Revised
Total revenues	$	1,018,460		$	—		$	(5,972	)	$	1,012,488
Processing costs	$	240,196		$	30,521		$	—		$	270,717
Provision for credit losses	$	33,348		$	110		$	—		$	33,458
Net foreign currency loss	$	(7,665	)	$	—		$	(1,568	)	$	(9,233	)
Income taxes	$	29,625		$	—		$	(1,033	)	$	28,592
Net income	$	57,476		$	(30,631	)	$	(6,507	)	$	20,338
Net income attributable to shareholders	$	60,637		$	(30,631	)	$	(6,507	)	$	23,499
Net income attributable to WEX Inc. per share
Basic	$	1.49		$	(0.75	)	$	(0.16	)	$	0.58
Diluted	$	1.48		$	(0.75	)	$	(0.16	)	$	0.57

The effects of the Revision on our consolidated balance sheets were as follows:

	December 31, 2017
(In thousands)	As Previously Reported			Brazil Adjustments			Other Immaterial Adjustments			As Revised
Assets
Cash and cash equivalents	$	508,072		$	—		$	(4,553	)	$	503,519
Accounts receivable, net of allowances	$	2,517,980		$	(56,393	)	$	(5,680	)	$	2,455,907
Prepaid expenses and other current assets	$	69,413		$	—		$	8,119		$	77,532
Deferred income taxes, net	$	7,752		$	848		$	(879	)	$	7,721
Other assets	$	253,088		$	—		$	4,553		$	257,641
Liabilities
Accounts payable	$	811,362		$	29,570		$	2,248		$	843,180
Other current liabilities	$	24,795		$	(1,629	)	$	9,957		$	33,123
Deferred income taxes, net	$	119,283		$	455		$	(3,490	)	$	116,248
Other liabilities	$	32,683		$	—		$	(638	)	$	32,045
Stockholders' equity
Retained earnings	$	1,404,683		$	(85,506	)	$	(6,517	)	$	1,312,660
Accumulated other comprehensive loss	$	(90,795	)	$	1,565		$	—		$	(89,230	)

The effects of the Revision on our consolidated statements of cash flows were as follows:

	Year Ended December 31, 2017
(In thousands)	As Previously Reported			Brazil Adjustments	Other Immaterial Adjustments		As Revised
Net cash provided by operating activities	$	129,403		—	6,024		$	135,427
Net cash used for investing activities	$	(163,501	)	—	(4,553	)	$	(168,054	)
Effect of exchange rates on cash, cash equivalents and restricted cash	$	(11,691	)	—	(6,024	)	$	(17,715	)
Cash, cash equivalents and restricted cash, end of year	$	526,938		—	(4,553	)	$	522,385

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	Year Ended December 31, 2016
(In thousands)	As Previously Reported			Brazil Adjustments			Other Immaterial Adjustments			As Revised
Net cash used for operating activities	$	(146,656	)	$	1,831		$	3,639		$	(141,186	)
Effect of exchange rates on cash, cash equivalents and restricted cash	$	6,430		$	—		$	(3,639	)	$	2,791
Cash, cash equivalents and restricted cash, beginning of year	$	297,926		$	(1,831	)	$	—		$	296,095

The following table presents the effects of the Revision on our retained earnings and accumulated other comprehensive loss as of January 1, 2016:

	January 1, 2016
(In thousands)	As Previously Reported			Brazil Adjustments			Other Immaterial Adjustments			As Revised
Retained earnings	$	1,183,634		$	(51,943	)	$	(2,738	)	$	1,128,953
Accumulated other comprehensive loss	$	(103,451	)	$	9,518		$	—		$	(93,933	)

The following table presents the increase (decrease) of the effects of the Revision on Note 26 - Quarterly Financial Results (Unaudited):

(Unaudited)	Three Months Ended
(In thousands, except per share data)	March 31			June 30			September 30			December 31
2018
Total revenues	$	(801	)	$	(78	)	$	3,927		$	(43	)
Operating income	$	5,497		$	(2,487	)	$	1,876		$	574
Net income attributable to shareholders	$	3,337		$	(874	)	$	(678	)	$	3,972
Earnings per share:
Basic	$	0.08		$	(0.02	)	$	(0.02	)	$	0.09
Diluted	$	0.08		$	(0.02	)	$	(0.01	)	$	0.09
2017
Total revenues	$	1,096		$	(16	)	$	(3,325	)	$	274
Operating income	$	(4,051	)	$	4,866		$	(12,904	)	$	6,242
Net income attributable to shareholders	$	(2,522	)	$	2,680		$	(7,739	)	$	7,377
Earnings per share:
Basic	$	(0.06	)	$	0.06		$	(0.18	)	$	0.17
Diluted	$	(0.06	)	$	0.06		$	(0.18	)	$	0.17

Other Reclassification Changes to Prior Year Financial Statement Presentation

Effective January 1, 2018, the Company modified the presentation of the balance sheets and statements of income and changed how it allocates certain costs to its segments. These changes enhance the information reported to the users of our financial statements. Prior period amounts have been recast to conform with this presentation.

The Company now classifies assets and liabilities as current and non-current within our consolidated balance sheets according to the normal twelve month operating cycle of our business. As a result of this change, total assets and total liabilities have increased by $3.7 million compared to what was reported within our Annual Report on Form 10–K for the year ended December 31, 2017 due to a gross-up of interest rate swap arrangements to reflect their corresponding short and long-term portions. See Note 18, Fair Value, for more information on the fair value of our interest rate swap arrangements.

Additionally, the Company has modified the presentation of certain line items in the consolidated statements of income. Under the modified presentation, costs of services are segregated from other operating expenses. Operating expenses have been reclassified into functional categories in order to provide additional detail into the underlying drivers of changes in operating expenses and align presentation with industry practice. The revised presentation did not result in a change to previously reported revenues, operating income, income before income taxes or net income.

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Effective with the change in financial statement presentation noted above, the Company now reports expenses in the categories noted below. No changes have been made to non-operating expenses.

Cost of Services

• Processing costs - The Company’s processing costs consist of expenses related to processing transactions, servicing customers and merchants and cost of goods sold related to hardware and other product sales.

• Service fees - The Company incurs costs from third-party networks utilized to deliver payment solutions. Additionally, other third-parties are utilized in performing services directly related to generating revenue. With the adoption of Topic 606, effective January 1, 2018 fees paid to third-party networks are no longer recorded as service fees and are now prospectively presented as a reduction of revenues.

• Provision for credit losses - Changes in the reserve for credit loss are the result of changes in management’s estimate of the losses in the Company’s outstanding portfolio of receivables, including losses from fraud.

• Operating interest - The Company incurs interest expense on the operating debt obtained to provide liquidity for its short-term receivables.

• Depreciation and amortization - The Company has identified those tangible and intangible assets directly associated with providing a service that generates revenue and records the depreciation and amortization associated with those assets under this category. Such assets include processing platforms and related infrastructure, acquired developed technology intangible assets and other similar asset types.

Other Operating Expenses

• General and administrative - General and administrative includes compensation and related expenses for executive, finance and accounting, other information technology, human resources, legal and other corporate functions. Also included are corporate facilities expenses, certain third-party professional service fees and other corporate expenses.

• Sales and marketing - The Company’s sales and marketing expenses relate primarily to compensation, benefits, sales commissions and related expenses for sales, marketing and other related activities. With the adoption of Topic 606, effective January 1, 2018 certain payments to partners are now prospectively classified as sales and marketing expenses .

• Depreciation and amortization - The depreciation and amortization associated with tangible and intangible assets that are not considered to be directly associated with providing a service that generates revenue are recorded as other operating expenses. Such assets include corporate facilities and information technology assets and acquired intangible assets other than those included in cost of services.

Use of Estimates and Assumptions

The Company prepares its consolidated financial statements in conformity with GAAP and with the Rules and Regulations of the SEC, specifically Regulation S–X and the instructions to Form 10–K. These principles require management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosures of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenue and expenses during the period. Actual results could differ from those estimates and those differences may be material.

Cash and Cash Equivalents

Highly liquid investments with remaining maturities at the time of purchase of three months or less (that are readily convertible to cash) are considered to be cash equivalents and are stated at cost, which approximates fair value. Cash and cash equivalents include amounts held in Eurodollar time deposits and money market funds, which are unsecured short-term investments entered into with financial institutions.

Restricted Cash

Restricted cash represents funds collected from individuals or employers on behalf of our customers that are to be remitted to third parties or funds required to be maintained on hand under certain vendor agreements. This restricted cash, which is not available to fund the Company’s operations, totaled $13.5 million and $18.9 million as of December 31, 2018 and 2017, respectively. We maintain an offsetting liability against restricted cash collected and remitted on behalf of our customers.

Accounts Receivable, Net of Allowances

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Accounts receivable, net of allowances consist of amounts billed and due from third parties. We often extend short-term credit to cardholders and pay the merchant for the purchase price, less the fees we retain and record as revenue. We subsequently collect the total purchase price from the cardholder.

The amounts due are stated at their net realizable value. The receivables portfolio consists of a large group of homogeneous smaller balances across a wide range of industries, which are collectively evaluated for impairment. The allowance for credit losses reflects management’s estimate of uncollectable balances resulting from credit and fraud losses and is based on the determination of the amount of expected credit losses inherent in the accounts receivable as of the reporting date. Management reviews delinquency reports, historical collection rates, changes in customer payment patterns, economic trends, geography and other information in order to make judgments as to probable credit losses. Management also uses historical charge-off experience to determine the amount of losses inherent in accounts receivable at the reporting date. Assumptions regarding probable credit losses are reviewed periodically and may be impacted by actual performance of accounts receivable and changes in any of the factors discussed above. The balance also includes a reserve for waived finance fees, which is used to maintain customer goodwill and recorded against the late fee revenue recognized.

Investment Securities

As a result of adopting ASU 2016–01, effective January 1, 2018, changes in the fair value of investment securities are included in net unrealized gain on financial instruments within our consolidated statements of income. Prior to adoption, unrealized gains and losses, net of tax, were reported on the consolidated balance sheets in accumulated other comprehensive loss. Realized gains and losses and declines in fair value determined to be other-than-temporary are included in non-operating expenses. The cost basis of securities is based on the specific identification method. Interest and dividends earned on investment securities are included in other revenue. Investment securities held by the Company were purchased and are held by WEX Bank primarily in order to meet the requirements of the Community Reinvestment Act.

Derivatives

From time to time, the Company utilizes derivative instruments as part of its overall strategy to manage its exposure to fluctuations in fuel prices and to reduce the impact of interest and foreign currency exchange rate volatility. The Company’s derivative instruments are recorded at fair value on the consolidated balance sheets. The Company’s derivative instruments have not been designated as hedges; therefore, both realized and unrealized gains and losses are recognized in earnings. For the purposes of cash flow presentation, realized and unrealized gains or losses are included within cash flows from operating activities.

Property and Equipment

Property and equipment are stated at cost, net of accumulated depreciation. Replacements, renewals and improvements are capitalized and costs for repair and maintenance are expensed as incurred. Depreciation is primarily computed using the straight-line method over the estimated useful lives shown below.

Below are the estimated useful lives for assets in service during 2018:

	Estimated Useful Lives
Furniture, fixtures and equipment	3 to 5 years
Internal-use computer software	1.5 to 7 years
Computer software	3 years

Leasehold improvements are depreciated using the straight-line method over the lesser of the remaining lease term or the useful life of the asset.

Capitalized Software

The Company develops software that is used to provide processing and information management services to customers. A significant portion of the Company’s capital expenditures is devoted to the development of such internal-use computer software. Costs incurred during the preliminary project stage are expensed as incurred. Software development costs are capitalized during the application development stage. Capitalization begins when the preliminary project stage is complete, as well as when management authorizes and commits to the funding of the project. Capitalization of costs ceases when the software is ready for its intended use. Costs related to maintenance of internal-use software are expensed as incurred. Software development costs are amortized using the straight-line method over the estimated useful life of the software.

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Below are the amounts of internal-use software capitalized and amortized:

	Year ended December 31,
(in thousands)	2018		2017		2016
Amounts capitalized for internal-use computer software (including work-in-process)	$	46,382	$	50,682	$	55,379
Amounts expensed for amortization of internal-use computer software	$	38,632	$	32,582	$	27,581

Acquisitions

For acquisitions that meet the definition of a business combination, the Company applies the acquisition method of accounting where assets acquired and liabilities assumed are recorded at fair value at the date of each acquisition. Acquiree results of operations are included in consolidated results of the Company from the date of the respective acquisition. Any excess of the purchase price paid by the Company over the amounts recognized for assets acquired and liabilities assumed is recorded as goodwill. The Company continues to evaluate acquisitions for a period not to exceed one year after the applicable acquisition date of each transaction to determine whether any additional adjustments are needed to the allocation of the purchase price paid for the assets acquired and liabilities assumed.

All other acquisitions are accounted for as asset acquisitions and the purchase price is allocated to the net assets acquired with no recognition of goodwill. Following the acquisition date, the purchase price is not subsequently adjusted.

The fair value of assets acquired and liabilities assumed is typically determined using a discounted cash flow valuation method, though the Company utilizes alternative valuation methods when deemed appropriate. Significant acquisition valuation assumptions typically include estimated asset useful lives, timing and amount of future cash flows, applicable discount rates and customer attrition rates.

Goodwill and Other Intangible Assets

The Company classifies intangible assets in the following three categories: (1) intangible assets with definite lives subject to amortization, (2) intangible assets with indefinite lives not subject to amortization and (3) goodwill. The Company tests intangible assets with definite lives for impairment if conditions exist that indicate the carrying value may not be recoverable. Such conditions may include a reduction in operating cash flow or a dramatic change in the manner in which the asset is intended to be used. The Company records an impairment charge when the carrying value of the definite-lived intangible asset is not recoverable from the undiscounted cash flows generated from the use of the asset.

Intangible assets with indefinite lives and goodwill are not amortized. The Company tests these intangible assets and goodwill for impairment at least annually or more frequently if facts or circumstances indicate that such intangible assets or goodwill might be impaired. All goodwill and intangible assets are assigned to reporting units, which are one level below the Company’s operating segments. The Company performs impairment tests at the reporting unit level. Such impairment tests include comparing the fair value of the respective reporting unit with its carrying value, including goodwill. The Company uses both discounted cash flow analyses and comparable company pricing multiples to determine the fair value of our reporting units. Such analyses are corroborated using market analytics. Certain assumptions are used in determining the fair value, including assumptions about future cash flows and terminal values. When appropriate, the Company considers the assumptions that it believes hypothetical marketplace participants would use in estimating future cash flows. In addition, an appropriate discount rate is used, based on the Company’s cost of capital or reporting unit-specific economic factors. When the fair value is less than the carrying value of the intangible assets or the reporting unit, the Company records an impairment charge to reduce the carrying value of the assets to the reporting unit’s implied fair value.

Effective October 1, 2018, the Company adopted ASU 2017–04, which simplified the subsequent measurement of goodwill, eliminating Step 2 from the goodwill impairment test (See Note 2, Recent Accounting Pronouncements, for further information regarding ASU 2017–04). Following adoption, the Company performs its annual goodwill impairment tests by comparing the fair value of a reporting unit with its carrying amount and, if necessary, recognizes an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. The loss recognized cannot exceed the total amount of goodwill allocated to that reporting unit. The Company’s annual goodwill impairment test performed as of October 1, 2018 identified a $3.2 million impairment related to our Brazil fleet reporting unit. No other impairment charges were identified. See

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Note 9, Goodwill and Other Intangible Assets, for further information. The Company’s annual goodwill and intangible asset impairment tests performed as of October 1, 2017 and 2016 did not identify any impairment.

Our European fleet and Brazil benefits reporting units had negative carrying values as of October 1, 2018. Our 2018 annual goodwill impairment test indicated an excess of estimated fair value greater than the carrying values of these reporting units of approximately $180 million and $250 million, respectively. As of December 31, 2018, goodwill assigned to these reporting units totaled approximately $35.8 million and $14.3 million, respectively. Such amounts are included in our Fleet Solutions and Health and Employee Benefit Solutions segments, respectively.

Intangible assets that are deemed to have definite lives are amortized over their useful lives, which is the period of time that the asset is expected to contribute directly or indirectly to future cash flows. The Company determines the useful lives of its identifiable intangible assets after considering the specific facts and circumstances related to each intangible asset. The factors that management considers when determining useful lives include the contractual term of agreements, the history of the asset, the Company’s long-term strategy for the use of the asset, any laws or other local regulations which could impact the useful life of the asset and other economic factors, including competition and specific market conditions. An evaluation of the remaining useful lives of the definite-lived intangible assets is performed periodically to determine if any change is warranted.

Impairment and Disposals of Assets

Long-lived assets are tested for impairment whenever facts or circumstances, such as a reduction in operating cash flow or a significant adverse change in the manner the asset is being used, indicate the carrying amount of the asset may not be recoverable. The Company compares the estimated undiscounted future cash flows associated with these assets or operations to their carrying value to determine if a write-down to fair value is required. See Note 22, Impairment and Restructuring Activities, for further discussion on impairments and asset write-offs.

Fair Value of Financial Instruments

The Company holds mortgage-backed securities, fixed-income securities, money market funds, derivatives (see Note 12, Derivative Instruments) and certain other financial instruments that are carried at fair value. The Company determines fair value based upon quoted prices when available or through the use of alternative approaches, such as model pricing, when market quotes are not readily accessible or available. Various factors are considered in determining the fair value of the Company’s obligations, including: closing exchange or over-the-counter market price quotations; time value and volatility factors underlying options and derivatives; price activity for equivalent instruments; and the Company’s own-credit standing.

These valuation techniques may be based upon observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company’s market assumptions. These two types of inputs create the following fair value hierarchy:

• Level 1 – Quoted prices for identical instruments in active markets.

• Level 2 – Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.

• Level 3 – Instruments whose significant value drivers are unobservable.

Assets and liabilities measured at fair value are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Our assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability.

Revenue Recognition

The Company adopted ASU 2014–09 (“Topic 606”) on January 1, 2018, utilizing the modified retrospective method. Under the modified retrospective method, prior period comparable financial information continues to be presented under the guidance of ASC 605, Revenue Recognition. See Note 2, Recent Accounting Pronouncements, for further information regarding the adoption impact. Topic 606 does not apply to rights or obligations associated with financial instruments, which continue to be within the scope of Topic 310, Receivables. In addition, gains on the sale of WEX Latin America receivables are included in other revenue and are within the scope of ASC 860, Transfers and Servicing.

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The vast majority of the Company’s Topic 606 revenue is derived from stand-ready obligations to provide payment processing, transaction processing and SaaS services and support. The transaction-based fees are generally calculated based on measures such as (i) percentage of dollar value of volume processed; (ii) number of transactions processed; or (iii) some combination thereof. The Company has entered into agreements with major oil companies, fuel retailers, vehicle maintenance providers, online travel agencies and health partners which provide products and/or services to the Company’s customers. These agreements specify that a transaction is deemed to be captured when the Company has validated that the transaction has no errors and has accepted and posted the data to the Company’s records. Prior to adoption of Topic 606, the Company recognized revenues when persuasive evidence of an arrangement existed, the products and services had been provided to the client, the sales price was fixed or determinable and collectability was reasonably assured. Subsequent to adoption of Topic 606, revenue is recognized based on the value of services transferred to date using a time elapsed output method. The change in accounting guidance did not result in a change in the pattern or timing of our revenue recognition. Point-in-time revenue recognized during the year ended December 31, 2018 was not material. See Note 3, Revenue, for further information regarding accounting policies applied before and after the Company's adoption of Topic 606 as well as for a description of the major components of revenue.

The Company generally records revenue net of consideration retained based upon its conclusion that the Company is the agent in its principal versus agent relationships. Prior to the adoption of Topic 606, this conclusion was based on the following criteria: (i) the Company is not the primary obligor in the arrangement; (ii) the Company has no inventory risk; (iii) the Company does not have reasonable latitude with respect to establishing the price for the product; (iv) the Company does not make any changes to the product or have any involvement in the product specifications; and, (v) the amount the Company earns for its services is fixed, within a limited range. Under Topic 606, the Company evaluated the nature of its promise to the customer and determined that it does not control a promised good or service before transferring that good or service to the customer, but rather arranges for another entity to provide the goods or services.

The Company enters into contracts with certain large customers or partners that provide for fee rebates tied to performance milestones. Rebates and incentives are calculated based on estimated performance and the terms of the related business agreements. Prior to the adoption of Topic 606, certain amounts paid to partners in our Fleet Solutions and Travel and Corporate Solutions segments were recorded as a reduction in revenue in the same period that revenue was earned or performance occurs. Subsequent to the adoption of Topic 606, these amounts are now reflected within sales and marketing expense on our consolidated statements of income. See Note 2, Recent Accounting Pronouncements, for further information regarding the adoption impact.

Stock-Based Compensation

The Company recognizes the fair value of all stock-based payments to employees in its financial statements. The Company estimates the fair value of service-based stock option awards and market performance-based stock option awards on the grant date using a Black-Scholes-Merton valuation model and a Monte Carlo simulation model, respectively. The fair value of Restricted Stock Units (“RSUs”), including Performance Based Restricted Stock Units (“PBRSUs”), is determined and fixed on the grant date based on the closing price of the Company’s stock price.

Stock-based compensation expense is net of estimated forfeitures and is recorded over each award’s requisite service period. The Company uses the straight-line methodology for recognizing the expense associated with service-based stock options and RSU grants and a graded-vesting methodology for the expense recognition of market performance-based stock options and PBRSUs.

Advertising Costs

Advertising and marketing costs are expensed in the period incurred. During the years ended December 31, 2018, 2017 and 2016, advertising expense was $16.3 million, $17.1 million and $14.9 million, respectively.

Income Taxes

Income taxes are accounted for under the asset and liability method. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in the period that includes the enactment date.

The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which the associated temporary differences became deductible. A valuation allowance is established for those jurisdictions in which deferred tax assets realization is deemed less than more likely than not.

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Accounting guidance prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. This accounting guidance also provides guidance on derecognition, classification, interest and penalties, accounting in the interim periods, disclosure, and transition. Penalties and interest related to uncertain tax positions are recognized as a component of income tax expense. To the extent penalties and interest are not assessed with respect to uncertain tax positions, amounts accrued are reduced and reflected as a reduction of the overall income tax provision.

Earnings per Share

Basic earnings per share is computed by dividing net income attributable to shareholders by the weighted average number of shares of common stock and vested deferred stock units (“DSUs”) outstanding during the year. The computation of diluted earnings per share is similar to the computation of basic earnings per share, except that the denominator is increased for the assumed exercise of dilutive options and assumed issuance of unvested performance-based awards for which the performance condition has been met as of the date of determination using the treasury stock method unless the effect is anti-dilutive. The treasury stock method assumes that proceeds, including cash received from the exercise of employee stock options and the average unrecognized compensation expense for unvested share-based compensation awards, would be used to purchase the Company’s common stock at the average market price during the period.

The following table summarizes net income attributable to shareholders and reconciles basic and diluted shares outstanding used in the earnings per share computations:

	Year ended December 31,
(In thousands)	2018		2017		2016
Net income attributable to shareholders	$	168,295	$	160,062	$	23,499
Weighted average common shares outstanding – Basic	43,156		42,977		40,809
Dilutive impact of share-based compensation awards	418		128		105
Weighted average common shares outstanding – Diluted	43,574		43,105		40,914

For the years ended December 31, 2018, 2017 and 2016, an immaterial number of outstanding share-based compensation awards were excluded from the computation of diluted earnings per share, as the effect of including these awards would be anti-dilutive.

Foreign Currency Movement

The financial statements of the Company’s foreign subsidiaries, where the local currency is the functional currency, are


translated to U.S. dollars using year-end spot exchange rates for assets and liabilities, average exchange rates for revenue and expenses and historical exchange rates for equity transactions. The resulting foreign currency translation adjustment is recorded as a component of accumulated other comprehensive loss.

Gains and losses on foreign currency transactions as well as the remeasurement of the Company’s cash, receivable and payable balances that are denominated in foreign currencies, are recorded directly in net foreign currency gain (loss) in the consolidated statements of income. However, gains or losses resulting from intercompany transactions where repayment is not anticipated for the foreseeable future are not recognized in the consolidated statements of income. In these situations, the gains or losses are deferred and included as a component of accumulated other comprehensive loss. In addition, gains and losses associated with the Company’s foreign currency exchange derivatives are recorded in net foreign currency gain (loss) in the consolidated statements of income.

Accumulated Other Comprehensive Loss (“AOCL”)

For the year ended December 31, 2018, AOCL consists entirely of unrealized gains and losses on foreign currency translation adjustments pertaining to the net investment in foreign operations. For the years ended December 31, 2017 and 2016, AOCL also included less than $1 million related to unrealized gains and losses on investment securities. Realized gains or losses on investment securities are classified as non-operating in the consolidated statements of income. Amounts are recognized net of tax to the extent applicable.

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2. Recent Accounting Pronouncements

The following table provides a brief description of recent accounting pronouncements that could have a material effect on our financial statements:

Standard	Description	Date/Method of Adoption	Effect on financial statements or other significant matters
Adopted During the Year Ended December 31, 2018
ASU 2014–09	This standard supersedes most existing revenue recognition guidance under GAAP. This revenue recognition standard requires entities to recognize revenue for the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, the standard requires disclosure of the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers.	The Company adopted ASU 2014–09 on January 1, 2018 using the modified retrospective approach to those contracts that were not completed as of January 1, 2018. Adoption resulted in a cumulative adjustment to retained earnings as of the effective date, without restatement of prior period amounts.	The Company’s revenue from discount and interchange, transaction processing and certain fees is within the scope of Topic 606. FASB and its Transition Resource Group have issued clarifications on various aspects of ASU 2014–09. There were three primary impacts to the Company resulting from the adoption of Topic 606, which are described below. Certain amounts paid to partners in our Fleet Solutions and Travel and Corporate Solutions segments have been determined to fall under the “cost to obtain a contract” guidance. As a result, these amounts, which were previously presented as a reduction of revenues, are now reflected within sales and marketing expense on our consolidated statements of income. This change increased both reported revenues and expenses for the year ended December 31, 2018 by $60.7 million. Network fees paid by all three of our segments, but primarily by our Travel and Corporate Solutions segment, are now presented as a reduction of revenues in our consolidated statements of income. Prior to January 1, 2018, these amounts were included within service fees. This change reduced both reported revenues and expenses by $18.5 million for the year ended December 31, 2018. Certain costs to obtain a contract, such as sales commissions, are to be capitalized and amortized over the life of the customer relationship, with a practical expedient available for contracts under one year in duration. The vast majority of the Company’s commissions will continue to be expensed as incurred. This change resulted in an immaterial impact to operating income for the year ended December 31, 2018. As of January 1, 2018, we recorded $0.6 million cumulative-effect adjustment, net of the associated tax effect, related to the deferral of capitalizable costs to obtain a contract within our Health and Employee Benefit Solutions segment. These commissions are amortized to sales and marketing expense over a useful life that considers the contract term, our commission policy, renewal experience and the transfer of services to which the asset relates.
ASU 2016–01	This standard requires equity investments, except those accounted for under the equity method of accounting, or those that result in consolidation of the investee, to be measured at fair value with changes in fair value recognized in net income.	The Company adopted ASU 2016–01 effective January 1, 2018.	Changes in the fair value of investment securities are now reflected as non-operating income within our consolidated statements of income. The adoption did not have a material impact on our results of operations, balance sheet or cash flows.
ASU 2016–18	This standard clarifies the classification and presentation of restricted cash in the statement of cash flows. Upon adoption, the statement of cash flows must explain the change during the period in the total of cash and cash equivalents and amounts described as restricted cash or cash equivalents.	The Company retrospectively adopted ASU 2016–18 effective January 1, 2018.	This retrospective adoption resulted in including restricted cash in cash, cash equivalents and restricted cash when reconciling the beginning of year and end of year amounts presented on the consolidated statements of cash flows. A reconciliation of cash, cash equivalents and restricted cash as reported within our consolidated balance sheets is included within our consolidated statements of cash flows.

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ASU 2017–04	This standard simplifies the subsequent measurement of goodwill, eliminating Step 2 from the goodwill impairment test, in which entities were to measure the goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount. Following adoption, entities should perform annual and interim goodwill impairment tests by comparing the fair value of a reporting unit with its carrying amount and if necessary, recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. The loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. Additionally, an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss, if applicable. Finally, the standard also eliminated the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test.	The Company early adopted ASU 2017–04 effective October 1, 2018.	The early adoption of this standard impacted the process used to calculate a goodwill impairment recognized during the fourth quarter of 2018. See Note 9, Goodwill and Other Intangible Assets, for more information.
ASU 2017–07	This standard changes the presentation of net benefit pension costs by requiring the disaggregation of certain of its components. Under the guidance, companies are required to present the service cost component in the same income statement line item(s) as other employee compensation costs arising from services rendered during the period. The other components of net benefit cost will be presented in the income statement separately from the service cost component and outside the subtotal of operating income, if one is presented. Additionally, only the service cost component will be eligible for capitalization under the new guidance.	The Company adopted ASU 2017–07 effective January 1, 2018.	The adoption did not have a material impact on our results of operations, cash flows or consolidated financial position.

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Not Yet Adopted as of December 31, 2018
ASU 2016–02	This standard requires lessees to recognize leases on-balance sheet and disclose key information about leasing arrangements.	The Company plans to adopt ASU 2016–02 effective January 1, 2019 using the modified retrospective method provided under ASU 2018–11 Leases (Topic 842): Targeted Improvements.	The new standard provides a number of optional practical expedients in transition. We expect to elect the ‘package of practical expedients’, which permits us not to reassess under the new standard our prior conclusions about lease identification and lease classification. We do not expect to elect the use-of hindsight or the practical expedient pertaining to land easements; the latter not being applicable to us. While we continue to assess all of the effects of adoption, we currently believe the most significant effects relate to the recognition of new right-of-use (“ROU”) assets and lease liabilities on our balance sheet for our real estate operating leases and providing significant new disclosures about our leasing activities. We do not expect a significant change in our leasing activities between now and adoption. We currently expect to recognize operating lease liabilities on the March 31, 2019 unaudited condensed consolidated balance sheet ranging from $73 million to $83 million, based on the present value of the remaining minimum rental payments under current leasing standards for existing operating leases. We expect to recognize corresponding ROU assets on the March 31, 2019 unaudited condensed consolidated balance sheet ranging from $64 million to $74 million. The new standard also provides practical expedients for an entity’s ongoing accounting. We currently expect to elect the short-term lease recognition exemption for all leases that qualify. This means, for those leases that qualify, we will not recognize ROU assets or lease liabilities, including for existing short-term leases of those assets in transition. We also currently expect to elect the practical expedient to not separate lease and non-lease components for our real estate leases.
ASU 2016–13	This standard requires financial assets measured at amortized cost basis to be presented at the net amount expected to be collected. The measurement of expected credit losses will be based on historical experience, current conditions, and reasonable and supportable forecasts that impact the collectability of the reported amount.	The standard is effective for annual reporting periods beginning after December 15, 2019, including interim periods within those fiscal years.	The Company is evaluating the impact the standard will have on the consolidated financial statements and related disclosures.
ASU 2018–15	This standard clarifies the accounting for capitalizing implementation costs in a cloud computing arrangement that is a service contract. The standard provides that implementation costs be treated using the same criteria used for internal-use software development costs, with amortization expense being recorded in the same income statement expense line as the hosted service costs and over the expected term of the hosting arrangement.	The standard is effective January 1, 2020.	The Company does not believe that this standard will have a material impact on our results of operations, cash flows or consolidated financial position.

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3. Revenue

The Company adopted Topic 606 on January 1, 2018, utilizing the modified retrospective method. See Note 2, Recent Accounting Pronouncements, for further information regarding the adoption impact. Under the modified retrospective method, prior period comparable financial information continues to be presented under the guidance of ASC 605, Revenue Recognition. See Note 1, Summary of Significant Accounting Policies, for our revenue recognition accounting policies applied prior to our adoption of Topic 606.

The impact of adopting Topic 606 for the year ended December 31, 2018 was as follows:

	Year Ended December 31, 2018
(In thousands)	Prior to Adoption			Impact of Topic 606			As Reported
Revenues
Payment processing revenue	$	685,250		$	38,741		$	723,991
Account servicing revenue	308,096			—			308,096
Finance fee revenue	208,627			—			208,627
Other revenue	248,217			3,708			251,925
Total revenues	1,450,190			42,449			1,492,639
Cost of services
Processing costs	309,450			—			309,450
Service fees	72,146			(18,491		)	53,655
Provision for credit losses	66,482			—			66,482
Operating interest	38,407			—			38,407
Depreciation and amortization	79,935			—			79,935
Total cost of services	566,420			(18,491		)	547,929
General and administrative	209,319			—			209,319
Sales and marketing	168,504			60,730			229,234
Depreciation and amortization	119,870			—			119,870
Impairment charges	5,649			—			5,649
Operating income	380,428			210			380,638
Financing interest expense	(105,023		)	—			(105,023		)
Net foreign currency loss	(38,800		)	—			(38,800		)
Non-cash adjustments related to tax receivable agreement	(775		)	—			(775		)
Net unrealized gain on financial instruments	2,579			—			2,579
Income before income taxes	238,409			210			238,619
Income taxes	68,781			62			68,843
Net income	169,628			148			169,776
Less: Net income from non-controlling interest	1,481			—			1,481
Net income attributable to shareholders	$	168,147		$	148		$	168,295

Topic 606 does not apply to rights or obligations associated with financial instruments, including the Company’s finance fee and interest income from banking relationships and cardholders, certain other fees associated with cardholder arrangements and commissions paid related to such agreements, which continue to be within the scope of Topic 310. In addition, gains on sale of WEX Latin America receivables are included in other revenue and are within the scope of ASC 860, Transfers and Servicing. Non-Topic 606 revenue accounts for approximately 33 percent of total revenue for the year ended December 31, 2018.

The vast majority of the Company’s Topic 606 revenue is derived from stand-ready obligations to provide payment processing, transaction processing and SaaS services and support. Revenue is recognized based on the value of services transferred to date using a time elapsed output method. For payment processing and transaction processing, services are considered to be transferred when a transaction is captured and the Company has validated that the transaction has no errors.

We disaggregate our revenue from contracts with customers by service-type for each of our segments, as we believe it best depicts how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors.

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The following table disaggregates our consolidated revenue for the year ended December 31, 2018:

	Year Ended December 31, 2018
(In thousands)	Fleet Solutions		Travel and Corporate Solutions		Health and Employee Benefit Solutions		Total
Topic 606 revenues
Payment processing revenue	$	464,980	$	203,289	$	55,722	$	723,991
Account servicing revenue	30,385		37,262		108,172		175,819
Other revenue	66,379		4,906		25,668		96,953
Total Topic 606 revenues	$	561,744	$	245,457	$	189,562	$	996,763
Non-Topic 606 revenues
Account servicing revenue	$	132,277	$	—	$	—	$	132,277
Finance fee revenue	190,528		1,391		16,708		208,627
Other revenue	90,591		56,496		7,885		154,972
Total non-Topic 606 revenues	$	413,396	$	57,887	$	24,593	$	495,876
Total revenues	$	975,140	$	303,344	$	214,155	$	1,492,639

Payment Processing Revenue

Payment processing revenue consists primarily of interchange income. Interchange income is a fee paid by a merchant bank (“merchant”) to the card-issuing bank (generally the Company) in exchange for the Company facilitating and processing transactions with cardholders. Interchange fees are set by the card network. WEX processes transactions through both closed-loop and open-loop networks.

• Our Fleet Solutions segment interchange income primarily relates to revenue earned on transactions processed through the Company’s proprietary closed-loop fuel networks. In closed-loop fuel network arrangements, written contracts are entered into between the Company and merchants, which determine the interchange fee charged on transactions. The Company extends short-term credit to the fleet cardholder and pays the merchant the purchase price for the cardholder’s transaction, less the interchange fees the Company retains. The Company collects the total purchase price from the fleet cardholder. In Europe, interchange income is specifically derived from the difference between the negotiated price of fuel from the supplier and the agreed upon price paid by fleet cardholders.

• Interchange income in our Travel and Corporate Solutions and Health and Employee Benefit Solutions segments relates to revenue earned on transactions processed through open-loop networks. In open-loop network arrangements, there are several intermediaries involved between the merchant and the cardholder and written contracts between all parties involved in the process do not exist. Rather, the transaction is governed by the rates determined by the payment network at the point-of-sale. This framework dictates the interchange rate, the risk of loss, dispute procedures and timing of payment. For these transactions, there is an implied contract between the Company and the merchant. In our Travel and Corporate Solutions segment, the Company remits payment to the card network for the purchase price of the cardholder transaction, less the interchange fees the Company earns. The Company collects the total purchase price from the cardholder. In our Health and Employee Benefit Solutions segment, funding of transactions and collections from cardholders is performed by third-party sponsor banks, who remit a portion of the interchange fee to us.

The Company has determined that the merchant is the customer as it relates to interchange income regardless of the type of network through which transactions are processed. The Company’s primary performance obligation to merchants is a stand-ready commitment to provide payment and transaction processing services as the merchant requires, which is satisfied over time in daily increments. Since the timing and quantity of transactions to be processed by us is not determinable, the total consideration is determined to be variable consideration. The variable consideration for our payment and transaction processing service is usage-based and therefore specifically relates to our efforts to satisfy our 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 interchange income on a daily basis based on the services that are performed on that day.

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In determining the amount of consideration received related to payment and transaction processing services provided, the Company assessed other intermediaries involved in the processing of transactions, including merchant acquirers, card networks, sponsor banks and third-party payment processors, and assessed whether the Company controls such services performed by other intermediaries according to principal-agent guidance in Topic 606. Based on this assessment, the Company determined that WEX does not control the services performed by merchant acquirers, card networks and sponsor banks as each of these parties is the primary obligor for their portion of payment and transaction processing services performed. Therefore, interchange income is recognized net of any fees owed to these intermediaries. The Company determined that services performed by third-party payment processors are controlled by WEX as the Company is responsible for directing how the third-party payment processor authorizes and processes transactions on the Company’s behalf. Therefore, such fees paid to third-party payment processors are recorded as service fees within cost of services.

Additionally, the Company enters into contracts with certain large customers or strategic cardholders that provide for fee rebates tied to performance milestones. The Company considered whether such fee rebates constitute consideration payable to a customer or other parties that purchase services from the customer per Topic 606. If so, such fee rebates, which are considered variable consideration, are recorded as a reduction in payment processing revenue in the same period that related interchange income is recognized. For the year December 31, 2018, such variable consideration totaled approximately $858.9 million. Fee rebates made to certain other partners were determined to be costs to obtain a contract, and are recorded as sales and marketing expenses.

Account Servicing Revenue

In our Fleet Solutions segment, account servicing revenue is primarily comprised of monthly fees charged to cardholders based on the number of vehicles serviced. These fees are primarily in return for providing monthly vehicle data reports and are recognized on a monthly basis as the service is provided. Additionally, account servicing revenue includes other fees recognized as revenue when assessed to the cardholder as part of the lending relationship. This revenue is outside the scope of Topic 606. The Company also recognizes account servicing revenue related to reporting services on telematics hardware placements and permit sales to our OTR fleet customer base, both of which are within the scope of Topic 606.

In our Travel and Corporate Solutions segment, account servicing reflects revenues earned from our AOC acquisition, primarily consisting of licensing fees for use of our accounts receivable and accounts payable SaaS platforms.

In our Health and Employee Benefit Solutions segment, we also recognize account servicing fees for the per-participant per-month fee charged per consumer on our SaaS healthcare technology platform. Customers including health plans, third-party administrators, financial institutions and payroll companies typically enter into three to five year contracts, which contain significant termination penalties.

Our Travel and Corporate Solutions and Health and Employee Benefit Solutions segments provide SaaS services and support, which are stand-ready commitments and are satisfied over time in a series of daily increments. Revenue is recognized based on an output method using days elapsed to measure progress as the Company transfers control evenly over each monthly subscription period.

Finance Fee Revenue

The Company earns revenue on overdue accounts, which is recognized as revenue at the time the fees are assessed. The finance fee is calculated using the greater of a minimum charge or a stated late fee rate multiplied by the outstanding balance that is subject to a late fee charge. On occasion, these fees are waived to maintain customer goodwill. The established reserve for such waived amounts is estimated and offset against the late fee revenue recognized. These waived fees amounted to approximately $19.1 million, $16.9 million and $10.9 million in 2018, 2017 and 2016, respectively. Finance fee revenue includes amounts earned by the Company’s factoring business, which purchases accounts receivable from third-parties at a discount. Through June 2018, the Company also recognized finance fee revenue earned on the Company’s foreign salary advance product. During the third quarter of 2018, the Company revised the WEX Latin America securitized debt agreement, which now meets the derecognition criteria for the sale of salary advance product receivables. As a result, gains on the sale of these receivables are now recognized within “Other Revenue” below. See Note 13, Off-Balance Sheet Arrangements, for further information on our WEX Latin America securitization.

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Other Revenue

Other revenue includes transaction processing revenue, professional services, including software development projects and other services sold subsequent to the core offerings, and the sales of telematics hardware, all of which is within scope of Topic 606. Revenue is recognized when control of the services or hardware is transferred to our customers, in an amount that reflects the consideration that we expect to receive in exchange for those services. In addition, international settlement fees and certain other cardholder fees (e.g. replacement card fees) and gains on sale of WEX Latin America receivables are included in other revenue. This revenue is outside the scope of Topic 606 and is recognized upon completion of the related service or the sale date of the receivables.

Contract Balances

The Company’s contract assets consist of upfront payments made to customers under long-term contracts and are recorded upon payment or when due. These payments reduce revenue recognition in future periods, as the resulting asset is amortized against revenue as the Company performs its obligations under these arrangements. The Company’s contract liabilities consist of customer payments received before the Company has satisfied the associated performance obligations and upfront payments due to the customer.

The following table provides information about these contract assets and liabilities from contracts with customers. Our contract assets and liabilities are reported in a net position on a contract-by-contract basis at the end of each reporting period.

(In thousands)
Contract balance	Location on the consolidated balance sheets	December 31, 2018		January 1, 2018
Receivables1	Accounts receivable, net	$	32,949	$	30,386
Contract assets	Prepaid expenses and other current assets	$	3,819	$	7,053
Contract assets	Other assets	$	19,232	$	49,068
Contract liabilities	Other current liabilities	$	7,612	$	26,592

¹ The majority of the Company’s receivables, excluded from the table above, are either due from cardholders, who have not been deemed our customer as it relates to interchange income, or from revenues earned outside of the scope of Topic 606.

Impairment losses recognized on our receivables and contract assets were immaterial for the year ended December 31, 2018. In the year ended December 31, 2018, we recognized revenue of $10.5 million related to contract liabilities. As result of a contract amendment executed during 2018, amounts previously paid were returned to the Company and remaining liabilities were waived, resulting in a $32.0 million reduction in contract assets and a $16.0 million reduction in contract liabilities.

Remaining Performance Obligations

The Company’s unsatisfied, or partially unsatisfied performance obligations as of December 31, 2018 represent the remaining minimum monthly fees on a portion of contracts across the lines of business and contractually obligated professional services yet to be provided by the Company. It is not indicative of the Company’s future revenue, as it relates to an insignificant portion of the Company’s operations. As allowed by Topic 606, the Company has elected to exclude from this disclosure the value of unsatisfied performance obligations for contracts with an original expected duration of one year or less.

The following table includes revenue expected to be recognized in the future related to remaining performance obligations at the end of the reporting period.

(In thousands)	2019		2020		2021		2022		2023		Thereafter		Total
Minimum monthly fees1	$	61,969	$	38,319	$	20,738	$	11,003	$	2,511	$	118	$	134,658
Professional services2	13,348		675		—		—		—		—		14,023
Total remaining performance obligations	$	75,317	$	38,994	$	20,738	$	11,003	$	2,511	$	118	$	148,681

¹ The transaction price allocated to the remaining performance obligations represents the minimum monthly fees on certain service contracts, which contain substantive termination penalties that require the counterparty to pay the Company for the aggregate remaining minimum monthly fees upon an early termination for convenience.

² Includes software development projects and other services sold subsequent to the core offerings, to which the customer is contractually obligated.

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4. Acquisitions

In 2018, we incurred and expensed $2.5 million related to acquisitions in process as of December 31, 2018, while costs related to acquisitions completed were insignificant. The Company incurred and expensed costs directly related to completed acquisitions of $1.0 million and $19.2 million in 2017 and 2016, respectively, which are included within general and administrative in the consolidated statements of income.

Asset Acquisition

In December 2016, the Company entered into a contract with Chevron to issue and operate branded commercial fleet cards commencing in 2018. During October 2018, the Company entered into a definitive asset purchase agreement to acquire Chevron’s existing trade accounts receivable and customer portfolio from a third-party for $223.4 million, of which a portion will be paid during 2019. During 2018, the consideration paid consisted of $162.8 million to acquire the customer portfolio, with $38.9 million paid into escrow for the carrying value of a portion of the accounts receivable at the date of purchase. We accounted for this transaction under the asset acquisition method of accounting. As of December 31, 2018, the deposits for the customer portfolio and accounts receivable are recorded in other assets and prepaid expenses and other current assets on the consolidated balance sheet, respectively. When the Company obtains control of the customer portfolio and the customer accounts are converted onto the Company’s payment processing platform, the amounts will be reclassified to other intangible assets and accounts receivable, respectively. Concurrently with entering into the asset purchase agreement, we modified a number of contract terms, including extending the term of Chevron’s agreement, which is the period that we will use to amortize the other intangible asset on a straight line basis. Transaction costs related to the acquisition were insignificant and expensed as incurred.

Business Acquisitions

Noventis

During October 2018, the Company entered into a definitive agreement to acquire Noventis, a long-time customer and electronic payments network focused on optimizing payment delivery for bills and invoices to commercial entities, for approximately $310 million. In January 2019, this acquisition was completed and primarily funded with cash on hand and through borrowings under the 2016 Credit Agreement, as amended during January 2019. See Note 25, Subsequent Events, for further information on the amendment. This acquisition is expected to expand our reach as a corporate payments supplier and provide more channels to billing aggregators and financial institutions. This acquisition will be accounted for as a business combination, with assets acquired and liabilities assumed assigned to our Travel and Corporate Solutions segment. The Company closed this transaction on January 24, 2019 and, as such, the accounting for this acquisition was incomplete at the time the consolidated financial statements were issued.

The Company has performed a preliminary valuation analysis, which is based on estimates and assumptions that are subject to change significantly within the measurement period. We currently expect to recognize intangible assets equal to approximately half of the purchase price, comprised of customer relationship and developed technology assets. Additionally, we expect to record a similar amount of goodwill as part of this business combination, which is not expected to be deductible for income tax purposes.

AOC

Effective October 18, 2017, the Company acquired certain assets and assumed certain liabilities of AOC, an industry leader in commercial payments technology.The acquisition of AOC, a longstanding technology provider for our virtual card product, will broaden our capabilities, increase our pool of employees with payments platform expertise and allow us to evolve with the needs of our customers and partners through the use of AOC’s payments processing technology platforms.

The Company purchased AOC for $129.8 million, which was funded with cash on hand and through borrowings under the 2016 Credit Agreement.The Company recorded adjustments to the assets acquired and liabilities assumed throughout the measurement period, which ended on September 30, 2018. The Company obtained information to assist in determining the fair values of certain assets acquired and liabilities assumed, resulting primarily in the recording of other intangible assets and goodwill. Goodwill is calculated as the consideration in excess of net assets recognized and represents the future economic benefits arising from other assets acquired that could not be individually identified and separately recognized, including synergies derived from the acquisition. The goodwill and intangible assets recorded from this business combination were assigned to our Travel and Corporate Solutions segment. The goodwill recognized in this business combination will be deductible for income tax purposes.

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The Company assigned $21.6 million of the purchase price to an acquired processing platform that had not reached technological feasibility as of the date of acquisition. During the third quarter of 2018, the Company placed this asset into service.

The following is a summary of the allocation of the purchase price to the assets and liabilities acquired:

(In thousands)	As Reported December 31, 2017			Measurement Period Adjustments			As Reported, Final
Total consideration	$	129,828		$	—		$	129,828
Less:
Cash	15,546			—			15,546
Accounts receivable	4,171			100			4,271
Property and equipment	2,530			(1,329		)	1,201
Customer relationships(a)	15,000			200			15,200
Developed technologies(b)	24,100			—			24,100
Trademarks and trade names(c)	1,460			10			1,470
In-process research and development	—			21,600			21,600
Other liabilities	(685		)	(772		)	(1,457		)
Recorded goodwill	$	67,706		$	(19,809	)	$	47,897

^(a) Weighted average life – 9.0 years.

^(b) Weighted average life – 3.4 years.

^(c) Weighted average life – 4.3 years.

^{(a) (b) (c)} The weighted average life of these amortized intangible assets is 5.5 years.

Since the acquisition date, the operations of AOC contributed net revenues of approximately $6.7 million and net loss before taxes of approximately $0.6 million during the year ended December 31, 2017. No pro forma information has been included in these financial statements as the operations of AOC for the period that they were not part of the Company are not material to the Company’s revenues, net income and earnings per share.

EFS

On July 1, 2016, the Company acquired all of the outstanding membership interests of EFS, a provider of customized payment solutions for fleet and corporate customers with a focus on the large and mid-sized over-the-road fleets. The acquisition enabled the Company to expand its customer footprint and to utilize EFS’ technology to better serve the needs of all fleet customers.

In consideration for the acquisition of EFS, the Company issued 4,012 shares of its common stock valued at approximately $355.0 million based on the July 1, 2016 closing price of the Company’s common stock on the NYSE. This represented approximately 9.4 percent of the Company’s outstanding common stock after giving effect to the issuance of the new shares in connection with this acquisition. The cash consideration for the transaction totaled approximately $1.2 billion, and was funded with amounts received under the 2016 Credit Agreement described further in Note 15, Financing and Other Debt. The value of the total cash and stock consideration paid for the acquisition of EFS was approximately $1.4 billion, net of approximately $93.0 million in cash acquired.

The Company obtained information to determine the fair values of certain assets acquired and liabilities assumed throughout the one year measurement period and recorded adjustments to the assets acquired and liabilities assumed, resulting in the recording of other intangible assets and goodwill as described below. Goodwill is calculated as the consideration in excess of net assets recognized and represents the future economic benefits arising from other assets acquired that could not be individually identified and separately recognized, including synergies derived from the acquisition. The Company finalized the EFS purchase accounting in the second quarter of 2017.

The tax structure of EFS consisted of limited liability companies and corporations. The Company’s  tax election allowed a step-up in tax basis related to its 49.5 percent direct ownership in the parent limited liability company. The remaining 50.5 percent ownership in the parent limited liability company is held by another limited liability company, taxed as a corporation, that is part of the EFS structure and will therefore receive carry over tax basis. The Company determined that approximately $557.0 million of the goodwill recognized in this business combination will be deductible for income tax purposes.

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The following represents the components and final allocation of the purchase price:

	As Reported December 31, 2016			Measurement Period Adjustments			As Reported, Final
Total consideration, net of cash acquired	$	1,444,235		$	—		$	1,444,235
Less:
Accounts receivable	162,684			—			162,684
Property and equipment	2,387			1			2,388
Customer relationships(a)(b)	842,700			(1,300		)	841,400
Developed technologies(a)(c)	32,120			—			32,120
Trademarks and trade names(a)(d)	13,700			—			13,700
Deferred income tax assets	34,992			6,352			41,344
Other assets	—			739			739
Accounts payable	(153,777		)	248			(153,529		)
Accrued expenses	(128,267		)	9,361			(118,906		)
Deferred income tax liabilities	(91,194		)	28,071			(63,123		)
Recorded goodwill(a)	$	728,890		$	(43,472	)	$	685,418

^(a) $1.2 billion in goodwill and other intangible assets recorded from this business combination were allocated to our Fleet Solutions segment, the remaining $337.3 million was allocated to our Travel and Corporate Solutions segment.

^(b) Weighted average life – 8.1 years.

^(c) Weighted average life – 2.0 years.

^(d) Weighted average life – 7.7 years.

^{(b) (c) (d)} The weighted average life of these amortized intangible assets is 7.9 years.

The pro forma financial information presented below includes the effects of the EFS acquisition as if it had been consummated on January 1, 2015. These pro forma results were calculated after applying the Company’s accounting policies and adjusting results to reflect the intangible amortization and interest expense associated with the 2016 Credit Agreement used to fund the acquisition and resulting income tax effects assuming they were applied and incurred since January 1, 2015.The pro forma results of operations do not include any cost savings or other synergies that may have resulted from the acquisition or any estimated integration costs incurred by the Company. Accordingly, the following pro forma information is not necessarily indicative of either the future results of operations or results that would have been achieved if the acquisition had taken place at the beginning of 2015. Subsequent to the July 1, 2016 acquisition date, the operations of EFS contributed revenues of approximately $83.3 million and net income before taxes of approximately $5.8 million to the Company’s 2016 consolidated statement of income.

The following represents unaudited pro forma operational results as if the acquisition had occurred as of January 1, 2015:

	Year Ended December 31, 2016
Total revenues	$	1,083,908
Net income attributable to shareholders	$	5,683
Pro forma net income attributable to shareholders per common share:
Basic	$	0.13
Diluted	$	0.13

5. Divestitures

During the year ended December 31, 2017, the Company sold $8.9 million in net assets of its Telapoint business for proceeds of $29.9 million. The sale resulted in a pre-tax book gain of $21.0 million. Costs incurred related to this divestiture were immaterial. Prior to the sale, the Telapoint business was assigned to our North American Fleet reporting unit, which is included within our Fleet Solutions reportable segment.

The divestiture was not material to the Company’s annual revenue, net income or earnings per share. The Company does not view this divestiture as a strategic shift in its operations.

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6. Accounts Receivable

In general, the Company’s trade receivables provide for payment terms of 30 days or less. Receivables not paid within the terms of the agreement are generally subject to late fees based upon the outstanding receivable balance.

The Company extends revolving credit to certain small fleets. These accounts are also subject to late fees and balances that are not paid in full are subject to interest charges based on the revolving balance. The Company had approximately $18.9 million and $12.2 million in receivables with revolving credit balances as of December 31, 2018 and 2017, respectively.

Concentration of Credit Risk

The receivables portfolio consists of a large group of homogeneous smaller balances across a wide range of industries, which are collectively evaluated for impairment. No one customer receivable balance represented 10 percent or more of the outstanding receivables balance as of December 31, 2018 or 2017. The following table presents the outstanding balance of trade accounts receivable that are less than 30 and 60 days past due, in each case as a percentage of total trade accounts receivable:

	December 31,
Delinquency Status	2018		2017
29 days or less past due	95	%	95	%
59 days or less past due	98	%	97	%

Reserves for Accounts Receivable

Receivables are generally written off when they are 150 days past due or upon declaration of bankruptcy of the customer. The reserve for credit losses is primarily calculated by an analytic model that also takes into account other factors, such as the actual charge-offs for the preceding reporting periods, expected charge-offs and recoveries for the subsequent reporting periods, a review of past due accounts receivable balances, changes in payment patterns, known fraudulent activity in the portfolio, as well as leading economic and market indicators.     

The following table presents changes in the accounts receivable allowances:

	Year ended December 31,
(In thousands)	2018			2017			2016
Balance, beginning of year	$	33,387		$	21,564		$	14,672
Provision for credit losses1	66,482			64,218			33,458
Charges to other accounts2	19,067			16,869			10,166
Charge-offs	(78,323		)	(77,229		)	(43,309		)
Recoveries of amounts previously charged-off	6,854			7,526			6,201
Currency translation	(519		)	439			376
Balance, end of year	$	46,948		$	33,387		$	21,564

¹ During 2017, the majority of the increase relates to higher incidences of magnetic stripe card skimming fraud.

² The Company earns revenue by assessing monthly finance fees on accounts with overdue balances. These fees are recognized as revenue at the time the fees are assessed. The finance fee is calculated using the greater of a minimum charge or a stated late fee rate multiplied by the outstanding balance that is subject to a late fee charge. On occasion, these fees are waived to maintain relationship goodwill. Charges to other accounts represents the offset against the late fee revenue recognized when the Company establishes a reserve for such waived amounts.

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7. Investment Securities

The Company’s investment securities as of December 31, 2018 and 2017, are presented below:

(In thousands)	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value(a)
2018
Mortgage-backed securities	$	255	$	5	$	—	$	260
Asset-backed securities	281		—		2		279
Municipal bonds	411		—		7		404
Fixed-income mutual fund(b)(c)	24,656		—		1,193		23,463
Total investment securities	$	25,603	$	5	$	1,202	$	24,406
2017
Mortgage-backed securities	$	325	$	4	$	24	$	305
Asset-backed securities	350		—		5		345
Municipal bonds	539		1		6		534
Fixed-income mutual fund(b)(c)	22,888		—		714		22,174
Total investment securities	$	24,102	$	5	$	749	$	23,358

^(a) The Company’s techniques used to measure the fair value of its investments are discussed in Note 18, Fair Value.

^(b) Not deemed available for current operations and have been classified as other assets

^(c)Excludes $6.4 million and $6.8 million in equity securities designated as trading as of December 31, 2018and 2017, respectively, included in prepaid expenses and other current assets and other assets on the consolidated balance sheets. See Note 17, Employee Benefit Plans, for additional information.

The Company reviews its investments to identify and evaluate indications of possible impairment. Factors considered in determining whether a loss is temporary include the length of time and extent to which the fair value has been less than the cost basis, the financial condition and near-term prospects of the investee, and the Company’s intent and ability to hold the investment for a period of time sufficient to allow for any anticipated recovery in market value. Substantially all of the Company’s fixed income securities are rated investment grade or better. The amount of investment securities that have been in a continuous unrealized loss position for more than twelve months is insignificant. The Company’s management has determined that these gross unrealized losses at December 31, 2018 and 2017 are temporary in nature.

The Company had maturities of investment securities of $0.3 million, $0.6 million and $0.5 million for the years ended December 31, 2018, 2017 and 2016, respectively.

The contractual maturity dates of the Company’s investment securities are as follows:

	December 31,
	2018				2017
(In thousands)	Cost		Fair Value		Cost		Fair Value
Due after 5 years through year 10	$	311	$	309	$	390	$	385
Due after 10 years	381		374		499		494
Mortgage-backed securities with original maturities of 30 years	255		260		325		305
Equity securities with no maturity dates	24,656		23,463		22,888		22,174
Total	$	25,603	$	24,406	$	24,102	$	23,358

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8. Property, Equipment and Capitalized Software, Net

Property, equipment and capitalized software, net consist of the following:

	December 31,
(In thousands)	2018			2017
Furniture, fixtures and equipment	$	78,167		$	69,695
Computer software	355,209			308,362
Leasehold improvements	25,516			23,248
Capital leases	—			759
Construction in progress	36,726			26,772
Total	495,618			428,836
Less: accumulated depreciation and amortization	(307,750		)	(264,928		)
Total property, equipment and capitalized software, net	$	187,868		$	163,908

Depreciation expense was $61.6 million, $49.9 million and $43.8 million in 2018, 2017 and 2016, respectively. During the year ended December 31, 2018 and 2017, the Company impaired approximately $2.4 million and $28.0 million of software under development, respectively. See Note 22, Impairment and Restructuring Activities, for further information. The Company did not incur significant impairment charges during 2016. As of December 31, 2018, we began separately presenting construction in progress, which includes software under development and other assets not yet placed into service, and conformed the amounts as of December 31, 2017.

9. Goodwill and Other Intangible Assets

Goodwill

The changes in goodwill during the period January 1 to December 31, 2018 were as follows:

(In thousands)	Fleet Solutions Segment			Travel and Corporate Solutions Segment			Health and Employee Benefit Solutions Segment			Total
Gross goodwill, January 1, 2018	$	1,269,718		$	265,041		$	353,508		$	1,888,267
Acquisition adjustments for AOC	—			(19,809		)	—			(19,809		)
Foreign currency translation	(18,217		)	(600		)	(3,315		)	(22,132		)
Gross goodwill, December 31, 2018	$	1,251,501		$	244,632		$	350,193		$	1,846,326
Accumulated impairment, January 1, 2018	$	(927	)	$	(11,208	)	$	—		$	(12,135	)
Brazil fleet impairment1	(3,225		)	—			—			(3,225		)
Foreign currency translation	(53		)	1,216			—			1,163
Accumulated impairment, December 31, 2018	$	(4,205	)	$	(9,992	)	$	—		$	(14,197	)
Net goodwill, January 1, 2018	$	1,268,791		$	253,833		$	353,508		$	1,876,132
Net goodwill, December 31, 2018	$	1,247,296		$	234,640		$	350,193		$	1,832,129

¹During our annual goodwill assessment completed in the fourth quarter of 2018, we assessed the impact of a customer loss significant to our Brazil fleet reporting unit. The fair value of this reporting unit was derived using a combination of present value of estimated cash flows and prices from comparable businesses. The calculated fair value was then compared to the reporting unit’s carrying value, which resulted in the Company recording a $3.2 million goodwill impairment charge. There is no remaining net goodwill associated with this reporting unit.

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The changes in goodwill during the period January 1 to December 31, 2017 were as follows:

(In thousands)	Fleet Solutions Segment			Travel and Corporate Solutions Segment			Health and Employee Benefit Solutions Segment			Total
Gross goodwill, January 1, 2017	$	1,293,138		$	202,771		$	353,722		$	1,849,631
Acquisition adjustments for EFS	(37,296		)	(6,176		)	—			(43,472		)
Acquisition of AOC	—			67,706			—			67,706
Divestiture of Telapoint	(4,469		)	—			—			(4,469		)
Foreign currency translation	18,345			740			(214		)	18,871
Gross goodwill, December 31, 2017	$	1,269,718		$	265,041		$	353,508		$	1,888,267
Accumulated impairment, January 1, 2017	$	(855	)	$	(10,335	)	$	—		$	(11,190	)
Foreign currency translation	(72		)	(873		)	—			(945		)
Accumulated impairment, December 31, 2017	$	(927	)	$	(11,208	)	$	—		$	(12,135	)
Net goodwill, January 1, 2017	$	1,292,283		$	192,436		$	353,722		$	1,838,441
Net goodwill, December 31, 2017	$	1,268,791		$	253,833		$	353,508		$	1,876,132

Other Intangible Assets

Other intangible assets consist of the following:

	December 31, 2018							December 31, 2017
(in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Definite-lived intangible assets
Acquired software and developed technology	$	216,325	$	(113,694	)	$	102,631	$	203,861	$	(96,197	)	$	107,664
Customer relationships	1,243,589		(360,593		)	882,996		1,257,232		(269,216		)	988,016
Licensing agreements	32,962		(18,303		)	14,659		34,546		(15,029		)	19,517
Patent	2,332		(2,044		)	288		2,581		(2,076		)	505
Trade name	43,907		(14,421		)	29,486		44,079		(10,309		)	33,770
	$	1,539,115	$	(509,055	)	$	1,030,060	$	1,542,299	$	(392,827	)	$	1,149,472
Indefinite-lived intangible assets
Trademarks, trade names and brand names						4,134							4,575
Total						$	1,034,194						$	1,154,047

During the years ended December 31, 2018, 2017 and 2016, amortization expense was $138.2 million, $153.8 million and $97.8 million, respectively. The following table presents the estimated amortization expense related to the definite-lived intangible assets listed above for each of the next five fiscal years:

(in thousands)
2019	$	123,656
2020	$	113,304
2021	$	100,319
2022	$	89,585
2023	$	80,041

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10. Accounts Payable

Accounts payable consists of:

	December 31,
(In thousands)	2018		2017
Merchant payables	$	690,651	$	752,371
Other payables	124,091		90,809
Accounts payable	$	814,742	$	843,180

11. Deposits, Borrowed Federal Funds and Other Debt

Deposits    

WEX Bank has issued certificates of deposit with maturities ranging from six months to five years and with interest rates ranging from 1.30 percent to 3.52 percent as of December 31, 2018. As of December 31, 2017, certificates of deposits had maturities ranging from three months to three years, with interest rates ranging from 1.00 percent to 2.15 percent. WEX Bank may issue additional brokered deposits, subject to FDIC rules governing minimum financial ratios, which include risk-based asset and capital requirements. As of December 31, 2018, all brokered deposits were in denominations of $250 thousand or less, corresponding to FDIC deposit insurance limits.

The Company requires deposits from certain customers as collateral for credit that has been extended. These deposits are generally non-interest bearing. Interest-bearing money market deposits are issued at variable rates based on LIBOR or the Federal Funds rate. Money market deposits may be withdrawn by the holder at any time, although notification may be required and the monthly number of transactions is limited. Interest-bearing brokered money market deposits, customer deposits and certificates of deposits with maturities within 1 year are classified as short-term deposits on our consolidated balance sheets.

WEX Bank is required to maintain reserves against a percentage of certain customer deposits by keeping balances with the Federal Reserve Bank. The required reserve based on the outstanding customer deposits was $11.1 million and $8.4 million at December 31, 2018 and 2017, respectively.

The following table presents the composition of deposits:

	December 31,
(in thousands)	2018			2017
Interest-bearing brokered money market deposits	$	283,790		$	285,899
Customer deposits	138,072			70,211
Certificates of deposits with maturities within 1 year (a)	505,582			630,879
Short-term deposits	927,444			986,989
Certificates of deposit with maturities greater than 1 year and less than 5 years (a)	345,231			306,865
Total Deposits	$	1,272,675		$	1,293,854
Weighted average cost of funds on certificates of deposit outstanding	2.36		%	1.51		%
Weighted average cost of interest-bearing brokered money market deposits	2.49		%	1.49		%

^(a) Certificates of deposit are classified as short-term or long-term within our consolidated balance sheets based on maturity date.

Sources of Funds

Borrowed Federal Funds

WEX Bank borrows from uncommitted federal funds lines to supplement the financing of its accounts receivable. There were no outstanding borrowings as of both December 31, 2018 and 2017. As of December 31, 2018 and 2017, the Company’s federal funds available lines of credit were $309.0 million and $275.0 million, respectively.

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ICS Purchases

At December 31, 2017, WEX Bank participated in the ICS service offered by Promontory Interfinancial Network, which allows WEX Bank to purchase brokered money market demand accounts and demand accounts in an amount not to exceed $125.0 million as part of a one-way buy program. There was no outstanding balance for ICS purchases as of December 31, 2017. At December 31, 2018 no amounts were available under this arrangement. Subsequently, the funding capacity of $125.0 million was reinstated.

The following table presents the average interest rates for deposits and interest-bearing money market deposits:

	Year ended December 31,
(in thousands)	2018		2017		2016
Average interest rate:
Deposits	1.91	%	1.22	%	0.94	%
Interest-bearing money market deposits	2.03	%	1.12	%	0.50	%

12. Derivative Instruments

The Company is exposed to certain market risks relating to its ongoing business operations. From time to time, the Company enters into derivative instrument arrangements to manage various risks including interest rate risk, foreign exchange risk, and commodity price risk.

Interest Rate Swap Agreements

During 2016 and 2017, we entered into five interest rate swap contracts, one of which matured on December 31, 2018. As of December 31, 2018, these agreements are intended to fix the future interest payments associated with $1.0 billion of our variable rate borrowings at interest rates between 1.108% to 2.212%. At December 31, 2018, we had variable-rate borrowings of $1.7 billion under the 2016 Credit Agreement. After December 31, 2018, the Company entered into three additional interest rate swap contracts as discussed in Note 25, Subsequent Events.

The notional amounts, fixed interest rates and maturities of the interest rate swap agreements are as follows:

	Tranche A	Tranche B	Tranche C	Tranche D	Tranche E
Notional amount at inception (in thousands)	$300,000	$200,000	$400,000	$150,000	$250,000
Amortization	N/A	N/A	5% annually	N/A	N/A
Maturity date	12/30/2022	12/30/2022	12/31/2020	12/31/2020	12/31/2018
Fixed interest rate	2.204%	2.212%	1.108%	1.125%	0.896%

The following table presents information on the location and amounts of derivative instruments gains and losses:

(In thousands)		Year ended December 31,
Derivatives Not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income Statement	2018			2017			2016
Interest rate swap agreements – unrealized portion	Net unrealized gain on financial instruments	$	3,772		$	1,314		$	12,908
Interest rate swap agreements – realized portion	Financing interest expense	$	(6,160	)	$	(214	)	$	—
Commodity contracts	Net realized and unrealized gains on fuel price derivatives	$	—		$	—		$	711

See Note 18, Fair Value, for more information regarding the valuation of the Company’s interest rate swaps.

Fuel Derivatives Program

The Company previously utilized fuel price derivative instruments, which were designed to reduce the volatility of the Company’s cash flows associated with its fuel price-related earnings exposure in North America. After the first quarter of 2016,

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the Company was no longer hedged for changes in fuel prices. Management will continue to monitor the fuel price market and evaluate its alternatives as it relates to this hedging program.

The following table summarizes the changes in fair value of the fuel price derivatives which have been recorded on the consolidated statements of income:

(In thousands)	Year ended December 31, 2016
Realized gains	$	5,718
Change in unrealized fuel price derivatives	(5,007		)
Net realized and unrealized gains on fuel price derivatives	$	711

13. Off-Balance Sheet Arrangements

WEX Europe Services Accounts Receivable Factoring

During the first quarter of 2017, WEX Europe Services entered into a factoring arrangement with an unrelated third-party financial institution (the “Purchasing Bank”). Under this arrangement, the Purchasing Bank establishes a credit limit for each customer account. The factored receivables are without recourse to the extent that the customer balances are maintained at or below the established credit limit. For customer receivable balances in excess of the Purchasing Bank’s credit limit, the Company maintains the risk of default. Additionally, there are no indications of the Company’s continuing involvement in the factored receivables. The Company obtained a true-sale opinion from an independent attorney, which states that the factoring agreement provides legal isolation upon a WEX Europe Services bankruptcy or receivership under local law and creates a sale of receivables for amounts transferred both below and above the established credit limits. As such, transfers under this arrangement are treated as sales and are accounted for as reductions in trade receivables because the agreements transfer effective control of the receivables to the Purchasing Bank. The Company records the proceeds as cash provided by operating activities.

The Company sold approximately $713.8 million and $574.4 million of receivables under this arrangement during the year ended December 31, 2018 and 2017, respectively. Proceeds received are recorded net of applicable expenses, interest and commissions. The loss on factoring was $4.7 million and $3.7 million for the year ended December 31, 2018 and 2017, respectively, and was recorded within cost of services in the consolidated statements of income. As of December 31, 2018 and December 31, 2017, the Company had associated factoring receivables of approximately $37.1 million and $61.8 million, respectively, of which approximately $0.2 million and $3.7 million, respectively, were in excess of the established credit limit. Charge-backs on balances in excess of the credit limit during the year ended December 31, 2018 and 2017 were insignificant.

WEX Bank Accounts Receivable Factoring

In August 2018, WEX Bank entered into a receivables purchase agreement with an unrelated third-party financial institution to sell certain of our trade receivables under non-recourse transactions. WEX Bank continues to service the receivables post-transfer with no participating interest. The Company obtained a true-sale opinion from an independent attorney, which states that the factoring agreement provides legal isolation upon WEX Bank bankruptcy or receivership under local law. As such, transfers under this arrangement are treated as a sale and are accounted for as a reduction in trade receivables because the agreements transfer effective control of the receivables to the buyer.

The Company sold approximately $3.2 billion of receivables under this arrangement during year ended December 31, 2018. Proceeds from the sale, which are reported net of a negotiated discount rate, are recorded in operating activities within the Company’s consolidated statement of cash flows. The loss on factoring was $1.0 million for the year ended December 31, 2018, and was recorded within cost of services in the consolidated statements of income.

WEX Latin America Securitization of Receivables

During the second quarter of 2017, WEX Latin America entered into a securitized debt agreement to transfer certain unsecured receivables associated with our salary payment card product to an investment fund managed by an unrelated third-party financial institution. WEX Latin America holds a non-controlling equity interest in the investment fund. During the year ended December 31, 2018, the Company’s equity contributions to the investment fund totaled $2.8 million.

As of December 31, 2017 and through June 30, 2018, this securitization arrangement did not meet the derecognition conditions due to continuing involvement with the transferred assets and accordingly WEX Latin America reported the transferred receivables and securitized debt on our consolidated balance sheets. The Company had $30.1 million and $19.0 million of securitized

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debt under this facility as of June 30, 2018 and December 31, 2017, respectively. During the six months ended June 30, 2018, the Company recognized approximately $4.4 million of operating interest expense under this financing arrangement.

During the third quarter of 2018, the securitization agreements were amended, resulting in the Company giving up effective control of the transferred receivables to the buyer. Additionally, the Company received a true-sale opinion from an independent attorney stating that the amended agreements provide legal isolation upon WEX Latin America bankruptcy or receivership under local law. As such, transfers under this arrangement are treated as a sale and are accounted for as a reduction in trade receivables. As the securitization is now accounted for as an off-balance sheet arrangement, the Company derecognized $31.4 million of transferred receivables and $30.1 million of securitized debt during the third quarter of 2018, with an immaterial impact to the consolidated statement of income for the year ended December 31, 2018.

    During the year ended December 31, 2018, the Company sold $39.8 million of receivables and recognized a $6.9 million gain on sale, consisting of the difference between the sales price and the carrying value of the receivables, which is recorded within other revenue in our consolidated statement of income. Cash proceeds from the transfer of these receivables is reflected as an operating activity within our consolidated statement of cash flows.

14. Income Taxes

Income before income taxes consisted of the following:

	Year ended December 31,
(In thousands)	2018		2017		2016
United States	$	194,770	$	147,240	$	32,622
Foreign	43,849		27,176		16,308
Total	$	238,619	$	174,416	$	48,930

Income taxes from continuing operations consisted of the following for the years ended December 31:

(In thousands)	United States			State and Local			Foreign			Total
2018
Current	$	16,027		$	3,566		$	17,916		$	37,509
Deferred	$	29,520		$	8,016		$	(6,202	)	$	31,334
Income taxes										$	68,843
2017
Current	$	2,254		$	3,687		$	13,743		$	19,684
Deferred	$	(11,748	)	$	10,842		$	(3,328	)	$	(4,234	)
Income taxes										$	15,450
2016
Current	$	(1,232	)	$	3,033		$	7,292		$	9,093
Deferred	$	21,565		$	(5,106	)	$	3,040		$	19,499
Income taxes										$	28,592

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2017 Tax Act

On December 22, 2017, the 2017 Tax Act was signed into law making significant changes to the Internal Revenue Code. Changes include, but are not limited to, a federal corporate tax rate decrease from 35% to 21% for tax years beginning after December 31, 2017, the transition of U.S. international taxation from a worldwide tax system to a territorial system and a one-time transition tax on the mandatory deemed repatriation of foreign earnings. The Company estimated the provision for income taxes in accordance with the 2017 Tax Act and guidance available as of the date of the December 31, 2017 filing and as a result recorded a provisional amount of one-time income tax benefit of $60.6 million in the fourth quarter of 2017, the period in which the legislation was enacted.

During the third quarter of 2018, the Company recorded an adjustment to the one-time income tax benefit attributable to the Company updating its estimate of foreign undistributed earnings, which was materially offset by an adjustment to certain deferred tax attributes as a result of further clarification provided by the IRS relative to IRC 162(m). As of December 31, 2018 the Company completed its analysis and all amounts were considered final.

The 2017 Tax Act also changed the taxation of foreign earnings, and companies generally will not be subject to United States federal income taxes upon the receipt of dividends from foreign subsidiaries and will not be permitted foreign tax credits related to such dividends. However, the 2017 Tax Act created a new requirement to tax certain foreign earnings relating to GILTI. Based on the FASB guidance, the Company can elect an accounting policy choice of either treating taxes due on future U.S. inclusions in taxable income related to GILTI as a current period expense when incurred or factoring such amounts into the Company’s measurement of its deferred taxes. The Company elected to treat GILTI inclusions as a period cost in 2018 and this resulted in an increase in tax expense of $1.8 million for the year ended December 31, 2018.

    Undistributed earnings of certain foreign subsidiaries of the Company amounted to $64.9 million and $58.7 million at December 31, 2018 and 2017, respectively. These earnings are considered to be indefinitely reinvested. Upon distribution of these earnings in the form of dividends or otherwise, the Company would be subject to withholding taxes payable, where applicable, to foreign countries, but would have no further federal income tax liability.

The reconciliation between the income tax computed by applying the U.S. federal statutory rate and the reported effective tax rate on income from continuing operations is as follows:

	Year ended December 31,
(In thousands except for tax rates)	2018		2017		2016
Federal statutory rate	21.0	%	35.0	%	35.0	%
State income taxes (net of federal income tax benefit)	2.2		2.0		1.9
Foreign income tax rate differential	1.1		(0.7	)	(6.5	)
Revaluation of deferred tax assets for foreign and state tax rate changes, net	(1.3	)	0.4		(1.6	)
Research and development credit	(0.2	)	—		(0.9	)
Tax reserves	2.0		0.3		(7.6	)
Withholding taxes	0.2		0.2		0.5
2017 Tax Act	(0.2	)	(34.8	)	—
Change in valuation allowance	4.5		4.6		4.0
Nondeductible expenses	1.4		0.5		27.8
Incremental tax benefit from share-based compensation awards	(1.7	)	(0.9	)	—
GILTI	0.8		—		—
Other	(0.9	)	2.3		5.8
Effective tax rate	28.9	%	8.9	%	58.4	%

Our effective tax rate was 28.9 percent for 2018 as compared to 8.9 percent for 2017. The lower tax rate in 2017 was primarily due to the reduction of our net deferred tax liabilities resulting from the change in federal corporate income tax rate to 21 percent from 35 percent effective January 1, 2018 as part of the 2017 Tax Act.

Our effective tax rate was 8.9 percent for 2017 as compared to 58.4 percent for 2016. The decrease in our tax rate was primarily due to the reduction of our net deferred tax liabilities resulting from the change in federal corporate income tax rate to 21 percent from 35 percent effective January 1, 2018 as part of the 2017 Tax Act and a decrease in non-deductible expense in 2017,

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partly offset by the increase in valuation allowance. The 2016 tax rate reflected non-deductible expenses related to the losses incurred by our Brazilian subsidiary, as these losses were not deductible for tax purposes.

The tax effects of temporary differences in the recognition of income and expense for tax and financial reporting purposes that give rise to significant portions of the deferred tax assets and the deferred tax liabilities are presented below:

	December 31,
(In thousands)	2018			2017
Deferred assets related to:
Reserve for credit losses	$	10,357		$	6,957
Tax credit carryforwards	986			1,283
Stock-based compensation, net	10,937			9,858
Net operating loss carry forwards	48,235			53,721
Accruals	13,142			7,355
Total	$	83,657		$	79,174
Deferred tax liabilities related to:
Other liabilities	$	1,961		$	2,248
Deferred financing costs	3,078			7,219
Property, equipment and capitalized software	28,227			22,315
Intangibles	166,347			140,570
Total	$	199,613		$	172,352
Valuation allowance	26,086			15,349
Deferred income taxes, net	$	(142,042	)	$	(108,527	)

Net deferred tax (liabilities) assets by jurisdiction are as follows:

	December 31,
(In thousands)	2018			2017
United States	$	(151,125	)	$	(113,107	)
Australia	(516		)	(1,000		)
Europe	5,873			7,448
New Zealand	116			188
Brazil	3,202			(1,020		)
Canada	408			(1,036		)
Deferred income taxes, net	$	(142,042	)	$	(108,527	)

The Company had approximately $503.3 million of post apportionment state, $53.8 million of federal and $58.7 million of foreign net operating loss carryforwards at December 31, 2018 and approximately $294.3 million of post apportionment state, $114.8 million of federal and $73.2 million of foreign net operating loss carryforwards at December 31, 2017. The U.S. losses expire at various times through 2038. Foreign losses in Brazil and the UK have indefinite carryforward periods.

At December 31, 2018, the Company maintained valuation allowances for the following items: (i) acquired and certain net operating losses in the UK (ii) Evolution1’s equity investment in its minority-owned subsidiaries, (iii) state tax credits, and net deferred tax assets for certain states and (iv) certain net operating losses and estimated non-deductible expenses. In each case, the Company has determined it is not likely that the benefits will be utilized. No other valuation allowances were established for any other deferred tax assets as the Company believes it is more likely than not that its deferred tax assets will be utilized within the carryforward periods. During 2018 and 2017, the Company recorded tax expense of $10.7 million and $9.7 million, respectively, for net increases to the valuation allowance. The substantial majority of the 2018 and 2017 increase in valuation allowance was related to the state net operating losses for our parent company’s separate state filings.

At December 31, 2018, the Company had $8.8 million of unrecognized tax benefits, net of federal income tax benefit, of which $8.4 million, if fully recognized, would decrease our effective tax rate. It is reasonably possible that the Company’s unrecognized tax benefits could be reduced by as much as $4.5 million within the next twelve months as a result of settlements of certain examinations or expiration of statutes of limitations. The Company recognizes interest and penalties related to unrecognized tax benefits in income tax expense. The total amounts of interest and penalties were not material

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for the years ended December 31, 2018, 2017 and 2016, and as of December 31, 2018 and 2017, the Company had no material amounts accrued for interest and penalties related to unrecognized tax benefits.

A reconciliation of the beginning and ending amount of gross unrecognized tax benefits excluding interest and penalties is as follows:

	Year ended December 31,
(In thousands)	2018			2017			2016
Beginning balance	$	5,898		$	5,458		$	4,897
Increases related to prior year tax positions	4,831			1,332			4,960
Increases related to current year tax positions	—			363			377
Decreases related to prior year tax positions	—			—			(431		)
Settlements	(1,733		)	(1,255		)	—
Lapse of statute	—			—			(4,345		)
Ending balance	$	8,996		$	5,898		$	5,458

The Company’s primary tax jurisdictions are the United States, Australia and the United Kingdom. The Company or one of its subsidiaries files income tax returns in the United States federal jurisdiction and various state and foreign jurisdictions, where required. In the normal course of business, the Company is no longer subject to income tax examination after the Internal Revenue Service statute of limitations of three years. For US state tax returns, we are no longer subject to tax examination for years prior to 2012. The Internal Revenue Service is currently in the process of examining the Company’s US federal income tax returns for 2010 through 2016. The Company is currently appealing adjustments proposed by the Internal Revenue Service in connection with the 2010-2012 audits. The Company is also subject to an ongoing examination in New Zealand by Inland Revenue for calendar tax years 2013 through 2016 but no adjustments have been proposed, and the Company believes its position does not warrant a reserve.

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15. Financing and Other Debt

The following table summarizes the Company’s total outstanding debt:

	Year ended December 31,
(In thousands)	2018			2017
Revolving line-of-credit facility under 2016 Credit Agreement (a)	$	—		$	136,535
Term loans under 2016 Credit Agreement (a)	1,745,084			1,602,875
Notes outstanding(a)	400,000			400,000
Securitized debt	106,872			126,901
Participation debt	114,849			184,990
WEX Latin America debt	16,242			9,747
Total gross debt	$	2,383,047		$	2,461,048
Current portion of gross debt	$	223,241		$	404,233
Less: Unamortized debt issuance costs	(6,724		)	(7,015		)
Short-term debt, net	$	216,517		$	397,218
Long-term gross debt	$	2,159,806		$	2,056,815
Less: Unamortized debt issuance costs	(25,883		)	(29,063		)
Long-term debt, net	$	2,133,923		$	2,027,752
Supplemental information under 2016 Credit Agreement:
Letters of credit (b)	$	53,514		$	27,500
Remaining borrowing capacity on revolving credit facility(c)	$	666,486		$	405,965

^(a) See Note 18, Fair Value, for more information regarding the Company’s 2016 Credit Agreement and Notes.

^(b) Collateral for lease agreements, virtual card and fuel payment processing activity at the Company’s foreign subsidiaries.

^(c) Contingent on maintaining compliance with the financial covenants as defined in the Company’s 2016 Credit Agreement.

2016 Credit Agreement

On July 1, 2016, the Company entered into the 2016 Credit Agreementand repaid in full all outstanding amounts under the 2014 Credit Agreement and terminated all commitments to extend further credit under the 2014 Credit Agreement. The 2016 Credit Agreement provides for secured tranche A and tranche B term loans and a secured revolving credit facility. On January 17, 2018, the Company amended certain terms of the 2016 Credit Agreement, including, increasing the outstanding amounts on the tranche B term loan by $153.0 million, reducing applicable interest rate margin for the tranche B term loan and amending certain aspects of the debt covenants. On August 24, 2018, the Company amended certain terms of the 2016 Credit Agreement, including, increasing the amount available under the revolving credit facility by $150.0 million and provided for an additional tranche A term loan in the amount of $25.0 million, reducing the applicable interest rate margin at current levels for the Company’s revolving credit and term A loans, extending the maturity date for the revolving credit facility and tranche A term loan to July 1, 2023, subject to earlier maturity as described in the amendment, and amending certain aspects of the debt covenants. After giving effect to these amendments, the 2016 Credit Agreement provides for a secured tranche A term loan in the original principal amount of $480.0 million, a secured tranche B term loan in the original principal amount of $1,335.0 million and a $720.0 million secured revolving credit facility, with a $250.0 million sublimit for letters of credit and $20.0 million sublimit for swingline loans. Under the 2016 Credit Agreement, the Company has granted a security interest in certain assets of the Company, subject to exceptions including the assets of WEX Bank.

Amounts due under the 2016 Credit Agreement mature in July 2023, subject to certain adjustments as more fully described below. Prior to maturity, amounts borrowed under the credit facility will be reduced by mandatory quarterly payments of $5.4 million and $3.4 million for tranche A and tranche B term loan facilities, respectively.

The Amounts outstanding under the 2016 Credit Agreement bear interest at variable rates, at the Company’s option, plus an applicable margin determined based on the Company’s consolidated leverage ratio. As of December 31, 2018 and 2017, amounts outstanding under the 2016 Credit Agreement bore a weighted average effective interest rate of 4.7 percent and 4.2 percent, respectively. The Company maintains interest rate swap agreements to manage the interest rate risk associated with its outstanding

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variable-interest rate borrowings under the 2016 Credit Agreement. See Note 12, Derivative Instruments, for further discussion. In addition, the Company has agreed to pay a quarterly commitment fee at a rate per annum ranging from 0.30% to 0.50% of the daily unused portion of the 2016 Credit Agreement (0.40% at December 31, 2018) determined based on the consolidated leverage ratio.

The 2016 Credit Agreement requires the Company to prepay outstanding term loans, subject to certain exceptions:

• solely with respect to the tranche B term loan facility, currently with 50% (subject to reduction to 25% and 0% based upon the Company’s consolidated leverage ratio) of the Company’s annual Excess Cash Flow (as defined in the 2016 Credit Agreement);

• with 100% of the net cash proceeds of certain asset sales where the proceeds exceed certain thresholds, and certain casualty and condemnation events, subject to reinvestment rights and certain other exceptions; and

• with 100% of the net cash proceeds of any incurrence or issuance of certain debt, other than debt permitted under the 2016 Credit Agreement.

The Company may voluntarily prepay outstanding loans from time to time, subject to certain conditions, without premium or penalty other than customary “breakage” costs.

The Company is required to make scheduled quarterly payments each equal to 1.25% in the case of the tranche A term loan facility, and 0.25% in the case of the tranche B term loan facility, of the principal amount of the respective term loans funded with the balance due at maturity.

The 2016 Credit Agreement, as amended, contains customary representations and warranties, as well as affirmative and negative covenants. The 2016 Credit Agreement also requires, solely for the benefit of the lenders under the tranche A term loan facility and the revolving credit facility, that the Company maintain at the end of each fiscal quarter the following financial ratios:

• a consolidated EBITDA to consolidated interest charge coverage ratio of no less than 3.00 to 1.00; and

• a consolidated funded indebtedness (excluding (i) up to an agreed amount of consolidated funded indebtedness under permitted securitization transactions and (ii) the non-recourse portion of any permitted factoring transaction) to consolidated EBITDA ratio of, no more than 4.50 to 1.00, at December 31, 2019, which ratio shall step down to 4.25 to 1.00 at December 31, 2020 and 4.0 to 1.0 at December 31, 2021 and thereafter.

Debt Covenants

The 2016 Credit Agreement and the Indenture contain covenants that limit the Company and its subsidiaries’ ability and the ability of its restricted subsidiaries and, in certain limited circumstances, WEX Bank and the Company’s other regulated subsidiaries, to (i) incur additional debt, (ii) pay dividends or make other distributions on, redeem or repurchase capital stock, or make investments or other restricted payments, (iii) enter into transactions with affiliates, (iv) dispose of assets or issue stock of restricted subsidiaries or regulated subsidiaries, (v) create liens on assets, or (vi) effect a consolidation or merger or sell all, or substantially all, of the Company’s assets. These covenants are subject to important exceptions and qualifications. At any time that the Notes are rated investment grade, which is not currently the case, and subject to certain conditions, certain covenants will be suspended with respect to the Notes. WEX Bank and the Company’s other regulated subsidiaries will not be subject to some of the restrictive covenants in the Indenture that place limitations on the Company and its restricted subsidiaries’ actions, and where WEX Bank and the Company’s regulated subsidiaries are subject to covenants, there are significant exceptions and limitations on the application of those covenants to WEX Bank and the Company’s regulated subsidiaries.

Notes Outstanding

On January 30, 2013, the Company completed a $400.0 million offering in an aggregate principal amount of 4.750 percent senior notes at an issue price of 100.0 percent of the principal amount, plus accrued interest, from January 30, 2013. The Notes were issued pursuant to the Indenture.

The Notes are guaranteed on a senior secured basis by each of the Company’s restricted subsidiaries and each of the Company’s regulated subsidiaries that guaranteed the Company’s 2013 Credit Agreement. WEX Bank, is not a guarantor and is not subject to many of the restrictive covenants in the indenture governing the Notes. The Notes and guarantees described above are general senior secured obligations ranking equally with the Company’s existing and future senior debt, senior in right of payment to all of the Company’s subordinated debt, and effectively equal in lien priority to the Company’s 2016 Credit Agreement.

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In addition, the Notes and the guarantees are structurally subordinated to all liabilities of the Company’s subsidiaries that are not guarantors, including WEX Bank.

The Company may redeem the Notes at any time, in whole or in part, at the following redemption prices (expressed as a percentage of principal amount of the Notes) if redeemed during the twelve month period beginning on February 1 of the following years: (i) 101.583 percent in 2019, (ii) 100.792 percent in 2020, and (iii) 100.0 percent in 2021 and thereafter; plus, in each case, accrued and unpaid interest, if any, up to the date of redemption. Upon the occurrence of a change of control of the Company (as described in the Indenture), the Company must offer to repurchase the Notes at 101 percent of the principal amount of the Notes, plus accrued and unpaid interest, if any, up to the date of repurchase.

The Notes will mature on February 1, 2023, and interest will accrue at the rate of 4.750 percent per annum. Interest is payable semiannually in arrears on February 1 and August 1 of each year.

Debt Issuance Costs

The Company accounted for the January 2018 repricing as both a debt extinguishment and debt modification. As part of this repricing, the Company recorded a loss on extinguishment of debt of $1.1 million related to the write-off of unamortized debt issuance costs. The Company incurred general and administrative expenses of $3.8 million related to third-party costs associated with the January 2018 and August 2018 repricings. The loss on extinguishment and third-party costs are reflected as financing interest expense and general and administrative expenses, respectively, within our consolidated statements of income. In addition, the Company incurred and capitalized $5.8 million of new debt issuance costs related to the January 2018 and August 2018 repricings. Debt issuance costs are being amortized into interest expense over the 2016 Credit Agreement’s term using the effective interest method for the tranche A and B term loans and the revolver.

In January 2016, the Company began to incur ticking fees for the debt financing commitment in anticipation of the then pending acquisition of EFS. Total ticking fees expensed to financing interest were $30.0 million for the year ended December 31, 2016. In conjunction with the continued negotiation of the Company’s 2016 Credit Agreement, the amount of ticking fees paid at the time of closing was reduced by $7.9 million to $22.2 million. The excess ticking fees were reflected as a reduction of the debt issuance costs related to the 2016 Credit Agreement and are amortized over the 2016 Credit Agreement’s term using the effective interest method for the tranche A and B term loans and the revolver.

Australian Securitization Facility

The Company maintains a securitized debt agreement with the Bank of Tokyo-Mitsubishi UFJ, Ltd., which expires April 2019. Under the terms of the agreement, each month, on a revolving basis, the Company sells certain of its Australian receivables to the Company’s Australian Securitization Subsidiary. The Australian Securitization Subsidiary, in turn, uses the receivables as collateral to issue asset-backed commercial paper (“securitized debt”) for approximately 85 percent of the securitized receivables. The amount collected on the securitized receivables is restricted to pay the securitized debt and is not available for general corporate purposes.

The Company pays a variable interest rate on the outstanding balance of the securitized debt, based on the Australian Bank Bill Rate plus an applicable margin. The interest rate was 2.89 percent and 2.53 percent as of December 31, 2018 and 2017, respectively. The Company had securitized debt under this facility of approximately $87.0 million and $90.0 million as of December 31, 2018 and 2017, respectively.

European Securitization Facility

On April 7, 2016, the Company entered into a five year securitized debt agreement with the Bank of Tokyo-Mitsubishi UFJ, Ltd. Under the terms of the agreement, the Company sells certain of its receivables from selected European countries to its European Securitization Subsidiary. The European Securitization Subsidiary, in turn, uses the receivables as collateral to issue securitized debt. The amount collected on the securitized receivables is restricted to pay the securitized debt and is not available for general corporate purposes. The amounts of receivables to be securitized under this agreement is determined by management on a monthly basis. The interest rate was 0.98 percent and 1.11 percent as of December 31, 2018 and 2017, respectively. The Company had securitized debt under this facility of approximately $18.0 million and $17.9 million as of December 31, 2018 and 2017, respectively.

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Participation Debt

Historically, WEX Bank maintained three separate participation agreements with third-party banks to fund customer balances that exceeded WEX Bank’s lending limit to an individual customer. In June 2018, WEX Bank entered into a fourth participation agreement with a third-party bank to fund an additional customer’s balance. Associated unsecured borrowings carry a variable interest rate of 1 month to 3 month LIBOR plus a margin of 225 basis points. The Company had funding capacity of $180.0 million at December 31, 2018 under these agreements, which terminate on June 30, 2019, August 31, 2019 and on demand. Amounts outstanding under the participation agreements were $64.8 million and $50.0 million and recorded in short-term debt, net and long-term debt, net, respectively, as of December 31, 2018. Amounts outstanding under the participation agreements were $135.0 million and $50.0 million and recorded in short-term debt, net and long-term debt, net, respectively, as of December 31, 2017. The average interest rate on outstanding participation debt was 4.30 percent, 3.46 percent and 2.94 percent for the year ended December 31, 2018, 2017 and 2016, respectively.

WEX Latin America Debt

WEX Latin America had debt of approximately $16.2 million and $9.7 million as of December 31, 2018 and 2017, respectively. This is comprised of credit facilities and loan arrangements related to our accounts receivable. These borrowings are recorded in short-term debt, net on the Company’s consolidated balance sheet. As of December 31, 2018 and 2017, the interest rate was 23.59% and 24.10%, respectively.

Other

As of December 31, 2018, WEX Bank pledged approximately $343.1 million of fleet receivables held by WEX Bank to the Federal Reserve Bank as collateral for potential borrowings, throughthe Federal Reserve Bank Discount Window. Amounts that can be borrowed are based on the amount of collateral pledged to the Federal Reserve Bank and were $307.4 million as of December 31, 2018. WEX Bank had no borrowings on this line of credit through the Federal Reserve Bank Discount Window as of December 31, 2018. The average interest rate on borrowed federal funds was 2.15 percent, 1.24 percent and 0.69 percent for the year ended December 31, 2018, 2017 and 2016, respectively.

Debt Commitments

The table below summarizes the Company’s annual principal payments on its total debt for each of the next five years:

2019	$	223,241
2020	$	85,278
2021	$	35,278
2022	$	35,278
2023	$	2,003,972

16. Tax Receivable Agreement

As a consequence of the Company’s separation from its former parent company in 2005, the tax basis of the Company’s net tangible and intangible assets increased (the “Tax Basis Increase”). The Tax Basis Increase reduced the amount of tax that the Company would pay in the future to the extent the Company generated taxable income in sufficient amounts. The Company was contractually obligated, pursuant to its 2005 Tax Receivable Agreement with the Company’s former parent company (Cendant Corporation), to remit 85 percent of any such cash savings.

Pursuant to the Separation and Distribution Agreement dated as of July 27, 2006, by and among Cendant Corporation (now known as Avis Budget Group, Inc. or “Avis”), Realogy Corporation (“Realogy”), Wyndham Worldwide Corporation (“Wyndham”) and Travelport Inc., Realogy acquired from Cendant the right to receive 62.5 percent of the payments by WEX Inc. to Cendant and Wyndham acquired from Cendant the right to receive 37.5 percent of the payments by WEX Inc. to Cendant under the 2005 Tax Receivable Agreement.

On June 26, 2009, the Company entered into a Tax Receivable Prepayment Agreement with Realogy, pursuant to which the Company paid Realogy $51.0 million, net of bank fees and legal expenses, as prepayment in full to settle the remaining obligations to Realogy under the 2005 Tax Receivable Agreement. In connection with the Tax Receivable Prepayment Agreement with Realogy, the Company entered into a Ratification Agreement on June 26, 2009 (the “Ratification Agreement”) with Avis,

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Realogy and Wyndham which amended the 2005 Tax Receivable Agreement to require the Company to pay 31.875 percent of the future tax savings related to the Tax Basis Increase to Wyndham.

The estimated amount of future payments owed to Wyndham is reflected as accrued expenses and other liabilities on the consolidated balance sheets for a total liability of $13.6 million and $20.3 million at December 31, 2018 and 2017 respectively. The estimate is dependent upon future statutory tax rates and the Company’s ability to generate sufficient taxable income adequate to cover the tax depreciation, amortization and interest expense associated with the Tax Basis Increase. Estimated blended tax rates are impacted by a number of factors including tax law changes, statutory tax rate changes, state apportionment and state filing combinations. The Company regularly reviews its estimated blended tax rates and projections of future taxable earnings to determine whether changes in the estimated liability are required. Any changes to the estimated future payments due to changes in estimated blended tax rates are recorded in the consolidated statements of income as non-cash adjustments related to tax receivable agreement.

There has been a reassessment of the projected blended tax rates for each period presented. For the year ended December 31, 2018, the net future benefits increased, which increased the associated liability to Wyndham, resulting in a charge to non-operating expense of $0.8 million. In addition, the liability decreased due to payments of $7.5 million made during the year ended December 31, 2018. For the year ended December 31, 2017, the net future benefits decreased, primarily as a result of the decline in Federal statutory tax rate as part of the 2017 Tax Act, which decreased the associated liability to Wyndham, resulting in an off-set of $15.3 million to non-operating expense. In addition, the liability decreased due to payments of $11.8 million made during the year ended December 31, 2017. For the year ended December 31, 2016, the net future benefits increased, which increased the associated liability to Wyndham, resulting in a charge to non-operating expense of $0.6 million.

17. Employee Benefit Plans

The Company sponsors a 401(k) retirement and savings plan for U.S. employees. Eligible employees may participate in the plan immediately. The Company’s employees who are at least 18 years of age and have completed one year of service are eligible for Company matching contributions in the plan. The Company matches 100 percent of each employee’s contributions up to a maximum of 6 percent of each employee’s eligible compensation. All contributions vest immediately. WEX has the right to discontinue the plan at any time. Contributions to the plan are voluntary. The Company contributed $8.0 million, $6.7 million and $5.3 million in matching funds to the plan for the years ended December 31, 2018, 2017 and 2016, respectively.

During 2016, the Company acquired EFS, which as of the date of the acquisition had its own employee savings plan (the “EFS Plan”). On February 1, 2017, the WEX plan received net assets available for benefits totaling $15.2 million in a transfer from the EFS Plan. On January 1, 2017, EFS employees became eligible to participate in the existing WEX plan.

The Company also sponsors defined contribution plans for certain employees designated by the Company. Participants may elect to defer receipt of designated percentages or amounts of their compensation. The Company maintains a grantor’s trust to hold the assets under the Company’s defined contribution plans. The obligations related to the defined contribution plans totaled $6.4 million and $6.8 million at December 31, 2018 and 2017, respectively, and are included in other current liabilities and other liabilities on the consolidated balance sheets. The assets held in trust are recorded at fair value with any changes recorded currently to earnings. The aggregate market value of the securities within the trust was $6.4 million and $6.8 million at December 31, 2018 and 2017, respectively, and are included in prepaid expenses and other current assets and other assets on the consolidated balance sheets.

The Company has defined benefit pension plans in Germany and Norway. The total net unfunded status for the Company’s foreign defined benefit pension plans was $5.4 million and $0.3 million as of December 31, 2018 and 2017, respectively. These obligations are recorded in other current liabilities and other liabilities in the consolidated balance sheets. The Company measures these plan obligations on an annual basis. The change in fair value to the defined benefit pension plans is recorded through the consolidated statements of income. The expense under each of these defined benefit pension plans for 2018, 2017 and 2016 was not material to the consolidated financial statements.

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18. Fair Value

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following table presents the Company’s financial instruments measured at fair value and the related hierarchy levels:

		December 31,
(In thousands)	Fair Value Hierarchy	2018		2017
Financial Assets:
Money market funds(a)	1	$	71,228	$	—
Investment securities
Municipal bonds	2	$	404	$	534
Asset-backed securities	2	279		345
Mortgage-backed securities	2	260		305
Fixed-income mutual fund	1	23,463		22,174
Total Investment securities		$	24,406	$	23,358
Executive deferred compensation plan trust(b)	1	$	6,398	$	6,798
Interest rate swaps(c)	2	$	17,994	$	19,595
Liabilities:
Interest rate swaps(d)	2	$	—	$	5,373

^(a) The fair value is recorded in cash and cash equivalents.

^(b) The fair value is recorded in prepaid expenses and other current assets and other assets based on the timing of payments obligations.

^(c) The fair value is recorded in prepaid expenses and other current assets or other assets depending on the timing of expected discounted cash flows.

^(d) The fair value is recorded in other current liabilities based on the timing of expected discounted cash flows.

We did not have any transfers between Level 1 and Level 2 of the fair value hierarchy during either of the years ended December 31, 2018 and 2017. See Note 1, Summary of Significant Accounting Policies, for a description of the levels of the fair value hierarchy.

Money Market Funds

A portion of the Company’s cash and cash equivalents are invested in a money market fund that primarily consists of short-term government securities, which are classified as Level 1 in the fair value hierarchy because they are valued using quoted market prices in an active market.

Investment Securities

When available, the Company uses quoted market prices to determine the fair value of investment securities; such inputs are classified as Level 1 of the fair-value hierarchy. These securities primarily consist of an open-ended mutual fund which is invested in fixed-income securities and is held in order to satisfy the regulatory requirements of WEX Bank. For mortgage-backed and asset-backed debt securities and municipal bonds, the Company generally uses quoted prices for recent trading activity of assets with similar characteristics to the debt security or bond being valued. The securities and bonds priced using such methods are generally valued using Level 2 inputs.

Executive Deferred Compensation Plan Trust

The investments held in the executive deferred compensation plan trust are classified as Level 1 in the fair value hierarchy because the fair value is determined using quoted prices for identical instruments in active markets.

Interest Rate Swaps

The Company determines the fair value of its interest rate swaps based on the discounted cash flows of the difference between the projected fixed payments on the swaps and the implied floating payments using the current LIBOR curve, which are Level 2 inputs of the fair value hierarchy.

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Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

Notes Outstanding

The Notes outstanding had a fair value of $392.0 million and $410.0 million as of December 31, 2018 and December 31, 2017, respectively. The fair value of the notes is based on market rates for the issuance of our debt and is classified as Level 2 in the fair value hierarchy.

2016 Credit Agreement

The Company determines the fair value of the amount outstanding under its 2016 Credit Agreement based on the market rates for the issuance of the Company’s debt which are Level 2 inputs in the fair value hierarchy. As of both December 31, 2018 and 2017, the carrying value of the 2016 Credit Agreement approximated its fair value.

Other Assets and Liabilities

Our financial instruments, other than those presented above, include cash and cash equivalents, accounts receivable, accounts payable, accrued expenses and other liabilities. The carrying values of such assets and liabilities approximate their respective fair values due to their short-term nature. The carrying values of certificates of deposit, interest-bearing brokered money market deposits, securitized debt, participation debt and borrowed federal funds approximate their respective fair values, as the interest rates on these financial instruments are variable market-based rates. All other financial instruments are reflected at fair value on the consolidated balance sheets.

19. Commitments and Contingencies

Litigation

The Company is subject to legal proceedings and claims in the ordinary course of business. As of the date of this filing, the current estimate of a reasonably possible loss contingency from all legal proceedings is not material to the Company’s consolidated financial position, results of operations, cash flows or liquidity.    

Operating Leases

The Company leases office space and equipment under non-cancelable operating lease agreements that expire at various dates through 2034. In addition, the Company rents office equipment under agreements that may be canceled at any time. Rental expense related to office space, equipment and vehicles amounted to $15.7 million, $15.5 million and $15.1 million for the years ended December 31, 2018, 2017 and 2016, respectively.

Future minimum lease payments under non-cancelable operating leases are as follows:

2019	$	14,794
2020	16,020
2021	15,186
2022	14,103
2023	11,706
Thereafter	65,628
Total minimum lease payments	$	137,437

Extension of Credit to Customers

We have entered into commitments to extend credit in the ordinary course of business. We had approximately $7.0 billion of unused commitments to extend credit at December 31, 2018, as part of established customer agreements. These amounts may increase or decrease during 2019 as we increase or decrease credit to customers, subject to appropriate credit reviews, as part of our lending product agreements. Many of these commitments are not expected to be utilized. We can adjust most of our customers’ credit lines at our discretion at any time. Therefore, we do not believe total unused credit available to customers and customers of strategic relationships represents future cash requirements.

Minimum Volume Purchase Commitments

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One of the Company’s subsidiaries is required to purchase a minimum amount of fuel from suppliers on an annual basis through 2024. Should the Company fail to meet these minimum volume commitments, a penalty will be assessed as defined under the contracts. Starting in 2020, annual volume commitments reset based on prior year volume purchased. If the Company does not purchase fuel under these commitments after December 31, 2018, it would incur total penalties through 2019 totaling $170.5 million. During the years ended December 31, 2018 and 2017, the Company incurred $1.6 million and $1.2 million, respectively, in shortfall penalties under these contracts. The Company considers the associated risk of loss to be remote based on current operations.

20. Dividend Restrictions

The Company has certain restrictions on the dividends it may pay, including those under the 2016 Credit Agreement. The 2016 Credit Agreement does allow us to make certain restricted payments (including dividends) if we are able to demonstrate pro forma compliance, after execution of a restricted payment, with a ratio of consolidated funded indebtedness to consolidated EBITDA of no more than 2.50:1.00 for the most recent period of four fiscal quarters. Additionally, if the Company’s interest coverage ratio is less than 3.00 to 1.00 and the Company’s leverage ratio does not exceed 5.00 through September 30, 2019, 4.50 through September 30, 2020, 4.25 through September 30, 2021 and 4.00 from December 31, 2021 and thereafter, after execution of a restricted payment, the Company may pay $50 million per annum for restricted payments, including dividends, of which 100% of unused amounts may be carried over into subsequent years. The Company has not declared any dividends on its common stock since it commenced trading on the NYSE on February 16, 2005.

Dividends paid by WEX Bank have provided a substantial part of the Company’s operating funds and for the foreseeable future it is anticipated that dividends paid by WEX Bank will continue to be a source of operating funds to the Company. Capital adequacy requirements serve to limit the amount of dividends that may be paid by WEX Bank. WEX Bank is chartered under the laws of the State of Utah and the FDIC insures its deposits. Under Utah law, WEX Bank may only pay a dividend out of net profits after it has (i) provided for all expenses, losses, interest and taxes accrued or due from WEX Bank and (ii) transferred to a surplus fund 10 percent of its net profits before dividends for the period covered by the dividend, until the surplus reaches 100 percent of its capital stock. For purposes of these Utah dividend limitations, WEX Bank’s capital stock is $5.3 million and its capital surplus exceeds 100 percent of capital stock.

Under FDIC regulations, WEX Bank may not pay any dividend if, following the payment of the dividend, WEX Bank would be “undercapitalized,” as defined under the Federal Deposit Insurance Act and applicable regulations. The FDIC also has the authority to prohibit WEX Bank from engaging in business practices that the FDIC considers to be unsafe or unsound, which, depending on the financial condition of WEX Bank, could include the payment of dividends.

WEX Bank complied with the aforementioned dividend restrictions for each of the years ended December 31, 2018, 2017 and 2016.

21. Stock-Based Compensation

In 2010, the Company adopted the WEX Inc. 2010 Equity Incentive Plan (the “Plan”), which replaced the Company’s 2005 Equity and Incentive Plan. In May 2015, the Company adopted the 2015 Section 162(m) Performance Incentive Plan (collectively with the Plan, the “Plans”). The Plans, which are stockholder-approved, permit the grant of stock options, stock appreciation rights, restricted stock, restricted stock units and other stock-based or cash-based awards to non-employee directors, officers, employees, advisors or consultants. The Plans permit the Company to grant a total number of shares which is the sum of; (i) 3,800 shares of common stock; plus (ii) such additional number of shares of common stock (up to 1,596) that were reserved for issuance under the Company’s Amended and Restated 2005 Equity and Incentive Plan (the “Prior Plan”) that remained available for grant under the Prior Plan at the time the 2010 Plan was adopted. There were 1.1 million units of common stock available for grant for future equity compensation awards under the Plan at December 31, 2018.

As of December 31, 2018, the Company had four stock-based compensation award types, which are described below. The compensation cost that has been charged against income for these programs totals $33.9 million, $30.5 million and $19.7 million for 2018, 2017 and 2016, respectively. The associated tax benefit related to these costs was $8.0 million, $7.3 million and $7.2 million, for 2018, 2017 and 2016, respectively.

Restricted Stock Units

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The Company periodically grants RSUs, a right to receive a specific number of shares of the Company’s common stock at a specified date, to non-employee directors and certain employees. RSUs granted to non-employee directors vest 12 months from the date of grant, or upon termination of board service if the director elects to defer receipt. RSUs issued to certain employees generally vest evenly over up to three years and provide for accelerated vesting if there is a change of control (as defined in the Plan). The fair value of each RSU award is based on the closing market price of the Company’s stock on the day of grant as reported by the NYSE.

The following is a summary of RSU activity during the year ended December 31, 2018:

Restricted Stock Units
(In thousands except per share data)	Units		Weighted-Average Grant-Date Fair Value
Unvested at January 1, 2018	173		$	98.31
Granted	101		165.88
Vested, including 29 shares withheld for tax (a)	(94	)	98.07
Forfeited	(13	)	110.81
Unvested at December 31, 2018	167		$	138.58

^(a)The Company withholds shares of common stock to pay the minimum required statutory taxes due upon RSU vesting. Cash is then remitted by the Company to the appropriate taxing authority.

As of December 31, 2018, there was $15.6 million of total unrecognized compensation cost related to RSUs. That cost is expected to be recognized over a weighted-average period of 1.8 years. The total grant-date fair value of RSUs granted was $16.8 million, $11.7 million and $18.8 million during 2018, 2017 and 2016, respectively. The total fair value of RSUs that vested during 2018, 2017 and 2016 was $9.2 million, $7.3 million and $3.6 million, respectively.

Performance-Based Restricted Stock Units

The Company periodically grants PBRSUs to employees. A PBRSU is a right to receive stock based on the achievement of both performance goals and continued employment during the vesting period. In a PBRSU, the number of shares earned varies based upon meeting certain performance goals. PBRSU awards generally have performance goals spanning one to three years, depending on the nature of the performance goal. The fair value of each PBRSU award is based on the closing market price of the Company’s stock on the grant date as reported by the NYSE.

The following is a summary of PBRSU activity during the year ended December 31, 2018:

Performance-Based Restricted Stock Units
(In thousands except per share data)	Shares		Weighted-Average Grant-Date Fair Value
Unvested at January 1, 2018	314		$	93.18
Granted	115		158.77
Forfeited	(45	)	96.47
Vested, including 48 shares withheld for tax (a)	(140	)	85.58
Performance adjustment (b)	175		88.99
Unvested at December 31, 2018	419		$	113.58

^(a)The Company withholds shares of common stock to pay the minimum required statutory taxes due upon PBRSU vesting. Cash is then remitted by the Company to the appropriate taxing authority.

^(b) Reflects adjustments to the number of shares of PBRSUs expected to vest based on the change in performance attainment during the year ended December 31, 2018.

As of December 31, 2018, there was $31.9 million of unrecognized compensation cost related to the PBRSUs that is expected to be recognized over a weighted-average period of 1.8 years. The total grant-date fair value of PBRSUs granted during 2018, 2017 and 2016 was $18.3 million, $15.0 million and $15.9 million, respectively. The total fair value of PBRSUs that vested during 2018, 2017 and 2016 was $12.0 million, $15.9 million and $4.9 million, respectively.

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Stock Options

Market Performance-Based Stock Options

In May 2017, the Company granted market performance-based stock options with a contractual term of ten years to certain members of senior management. The options contain a market condition that begins operating on the third anniversary of the grant date, requiring the closing price of the Company’s stock to meet or exceed certain price thresholds for twenty consecutive trading days (“Stock Price Hurdle”) in order for shares to vest. In addition, award recipients must be continually employed from the grant date until such date that the Stock Price Hurdle is satisfied in order for shares to vest. To the extent both the service condition and the Stock Price Hurdles are not met by the end of a defined measurement period, these options will be canceled.

The grant date fair value of these options was estimated on the date of the grant using a Monte-Carlo simulation model used to simulate a distribution of future stock price paths based on historical volatility levels.

The table below summarizes the assumptions used to calculate the fair value:    

Exercise price	$	99.69
Expected stock price volatility	31.14		%
Risk-free interest rate	2.18		%
Weighted average fair value of performance options granted	$	28.69

The Company expenses these options on a graded basis over the derived service period of approximately three years regardless of whether the market condition is satisfied. Upon satisfaction of a Stock Price Hurdle, any unrecognized compensation expense for that specific tranche will be accelerated.

Service-Based Stock Options

Stock options granted to certain officers and employees under the Plan generally become exercisable over three years (with approximately 33 percent of the total grant vesting each year on the anniversary of the grant date) and expire 10 years from the date of grant.

Based on the Company’s lack of historical option exercise experience and granting of stock options with “plain vanilla” characteristics, the Company uses the simplified method to estimate the expected term of its employee stock options. The fair value of each option award is estimated on the grant date using the following assumptions and a Black-Scholes-Merton option-pricing model. The expected term assumption as it relates to the valuation of the options represents the period of time that options granted are expected to be outstanding. The Company estimates expected stock price volatility based on historical volatility of the Company’s common stock over a period matching the expected term of the options granted. The option-pricing model also includes a risk-free interest rate for the period matching the expected term of the option and is based on the U.S. Treasury yield curve in effect at the time of the grant. We have never paid nor do we expect to pay any cash dividends on our common stock; therefore, we assume that no dividends will be paid over the expected terms of option awards. 

The table below summarizes the assumptions used to calculate the fair value by year of grant:

	2018			2017			2016
Weighted average expected term (in years)	6.0			6.0			6.0
Weighted average exercise price	$	158.23		$	104.95		$	77.20
Expected stock price volatility	27.35		%	30.67		%	31.93		%
Risk-free interest rate	2.69		%	2.13		%	1.62		%
Weighted average fair value	$	51.27		$	35.58		$	26.14

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The following is a summary of all stock option activity during the year ended December 31, 2018:

Stock Options
(In thousands, except per share data)	Shares		Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding at January 1, 2018	834		$	97.70
Granted	101		158.23
Exercised	(25	)	91.85
Forfeited or expired	(19	)	103.55
Outstanding at December 31, 2018	891		$	104.62	8.23	$	33,362
Exercisable on December 31, 2018	132		$	91.76	7.24	$	6,379
Vested and expected to vest at December 31, 2018	754		$	106.60	8.40	$	26,947

As of December 31, 2018, there was $13.0 million of total unrecognized compensation cost related to options. That cost is expected to be recognized over a weighted-average period of 1.5 years. The total intrinsic value of options exercised during the years ended December 31, 2018, 2017 and 2016 was $1.9 million, $0.6 million and $1.7 million, respectively. The total grant-date fair value of options granted during 2018, 2017 and 2016 was $5.2 million, $20.5 million, and $3.3 million, respectively.

Deferred Stock Units

Non-employee directors may elect to defer their cash fees and RSUs in the form of deferred stock units (“DSUs”). The Company previously granted fully vested DSUs to non-employee directors. These awards are distributed as common stock 200 days immediately following the date upon which such director’s service as a member of the Company’s Board of Directors terminates for any reason. There were approximately 74 and 94 DSUs outstanding as of December 31, 2018 and 2017 respectively. Unvested DSUs as of December 31, 2018 and 2017 were not material.

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22. Impairment and Restructuring Activities

Impairment Charges and Asset Write-Offs

As part of our annual goodwill assessment completed in the fourth quarter of 2018, we recorded a non-cash goodwill impairment charge of $3.2 million related to our Brazil fleet reporting unit. See Note 9, Goodwill and Other Intangible Assets, of our consolidated financial statements for more information. We also impaired $2.4 million of computer software which was determined to provide no future benefit in 2018.

Following the acquisition of AOC in the fourth quarter of 2017, the Company reevaluated software currently under development for payment processing within our Travel and Corporate Solutions segment. From this, we determined the developed technology obtained in the AOC acquisition more closely aligns with our technological strategy. As a result, $22.0 million of software under development was determined to have no future benefit and therefore impaired during the year ended December 31, 2017. We also impaired $6.0 million of computer software within the Fleet Solutions segment in 2017 as a result of our ongoing platform consolidation strategy, designed to ensure we continue to deliver superior technology to our customers.

During the year ended December 31, 2017, the Company executed a vendor contract amendment based on a strategic decision to in-source certain previously outsourced technology functions. As a result of this action, the Company determined that $16.2 million of prepaid services had no future benefit and were therefore written off within the Fleet Solutions and Travel and Corporate Solutions segments during the same period.

The Company did not recognize any impairment expense on assets during the year ended December 31, 2016.

Restructuring

In the first quarter of 2015, the Company commenced a restructuring initiative (the “2015 Restructuring Initiative”) as a result of its global review of operations. The review of operations identified certain initiatives to further streamline the business, improve the Company’s efficiency and globalize the Company’s operations, all with an objective to improve scale and increase profitability going forward. The Company continued its efforts to improve its overall operational efficiency and began a second restructuring initiative (the “2016 Restructuring Initiative”) during the second quarter of 2016. In connection with the EFS acquisition, the Company initiated a third restructuring program in the third quarter of 2016 (the “Acquisition Integration Restructuring Initiative”). The majority of the balances under these initiatives are expected to be paid through 2019.

The restructuring expenses related to these initiatives primarily consist of employee costs and office closure costs directly associated with the respective programs. The Company has determined the amount of expenses related to these initiatives is probable and reasonably estimable. As such, the Company has recorded the impact on the consolidated statements of income and in accrued expenses and other current liabilities on the consolidated balance sheets. Restructuring charges incurred to date under these initiatives were $24.8 million as of December 31, 2018. Based on current plans, which are subject to change, the amount of additional restructuring costs that the Company expects to incur under these initiatives is immaterial.

The following tables present the Company’s restructuring activities by initiative:

2015 Restructuring Initiative	Year Ended December 31,
(In thousands)	2018			2017
Balance, beginning of year	$	2,680		$	5,231
Restructuring (reversals) charges1	(79		)	2,565
Cash paid	(1,734		)	(4,020		)
Other2	(511		)	(1,158		)
Foreign currency translation	(27		)	62
Balance, end of year	$	329		$	2,680

¹ Primarily consists of employee costs in 2017.

² In 2017, the liability was transferred to the 2016 Restructuring Initiative.

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2016 Restructuring Initiative	Year Ended December 31,
(In thousands)	2018			2017
Balance, beginning of year	$	738		$	3,662
Restructuring (reversals) charges	111			(1,305		)
Cash paid	(592		)	(3,479		)
Other1	—			1,158
Foreign currency translation	(7		)	702
Balance, end of year	$	250		$	738

¹ In 2017, the liability was transferred from the 2015 Restructuring Initiative.

Acquisition Integration Restructuring Initiative	Year Ended December 31,
(In thousands)	2018			2017
Balance, beginning of year	$	5,093		$	1,764
Restructuring charges1	240			5,879
Cash paid	(5,355		)	(2,650		)
Other	22			107
Foreign currency translation	—			(7		)
Balance, end of year	$	—		$	5,093

¹Primarily consists of office closure costs in 2017.

Total Restructuring Initiatives	Year Ended December 31,
(In thousands)	2018			2017
Balance, beginning of year	$	8,511		$	10,657
Restructuring charges	272			7,139
Cash paid	(7,681		)	(10,149		)
Other	(489		)	107
Foreign currency translation	(34		)	757
Balance, end of year	$	579		$	8,511

23. Segment Information

The Company determines its operating segments and reports segment information in accordance with how the Company’s chief operating decision maker (“CODM”) allocates resources and assesses performance. The Company’s CODM is its Chief Executive Officer. The operating segments are aggregated into the three reportable segments described below.    

• Fleet Solutions provides customers with payment and transaction processing services specifically designed for the needs of commercial and government fleets. This segment also provides information management services to these fleet customers.

• Travel and Corporate Solutions focuses on the complex payment environment of business-to-business payments, providing customers with payment processing solutions for their corporate payment and transaction monitoring needs.

• Health and Employee Benefit Solutions provides healthcare payment products and SaaS consumer directed platforms, as well as payroll related benefits to customers.

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The following tables disaggregate our consolidated revenue:

	Year Ended December 31, 2018
(in thousands)	Fleet Solutions		Travel and Corporate Solutions		Health and Employee Benefit Solutions		Total
Payment processing revenue	$	464,980	$	203,289	$	55,722	$	723,991
Account servicing revenue	162,662		37,262		108,172		308,096
Finance fee revenue	190,528		1,391		16,708		208,627
Other revenue	156,970		61,402		33,553		251,925
Total revenues	$	975,140	$	303,344	$	214,155	$	1,492,639
Interest income	$	3,503	$	958	$	11,706	$	16,167

	Year Ended December 31, 2017
(In thousands)	Fleet Solutions		Travel and Corporate Solutions		Health and Employee Benefit Solutions		Total
Payment processing revenue	$	360,158	$	158,660	$	50,348	$	569,166
Account servicing revenue	165,083		7,531		103,956		276,570
Finance fee revenue	159,336		760		28,696		188,792
Other revenue	138,533		57,096		18,420		214,049
Total revenues	$	823,110	$	224,047	$	201,420	$	1,248,577
Interest income	$	3,681	$	717	$	27,507	$	31,905

	Year Ended December 31, 2016
(In thousands)	Fleet Solutions		Travel and Corporate Solutions		Health and Employee Benefit Solutions		Total
Payment processing revenue	$	297,900	$	175,762	$	46,957	$	520,619
Account servicing revenue	127,105		1,247		82,660		211,012
Finance fee revenue	124,725		643		7,600		132,968
Other revenue	92,331		37,595		17,963		147,889
Total revenues	$	642,061	$	215,247	$	155,180	$	1,012,488
Interest income	$	3,053	$	498	$	13,581	$	17,132

No one customer accounted for more than 10 percent of the total consolidated revenue in 2018, 2017 or 2016.    

Effective January 1, 2018, the Company modified the presentation of the statements of income and changed how it allocates certain costs to its segments. These changes enhance the information reported to the users of our quarterly and annual filings. The primary change is how the Company allocates information technology and corporate-related costs to its segments. Certain information technology and corporate-related costs that support multiple segments, which were previously included entirely within the Fleet Solutions segment, are now allocated to the segment that they support. Certain residual unallocated corporate costs represent the portion of expenses relating to general corporate functions including acquisition expenses, certain finance, legal, information technology, human resources, administrative and executive expenses and other expenses. These expenses are recorded in unallocated corporate expenses, as these items are centrally and directly controlled and are not included in internal measures of segment operating performance. Prior period amounts have been recast to conform with this presentation. See Note 1, Summary of Significant Accounting Policies, for further information regarding the modified presentation of the consolidated statements of income.

The CODM evaluates the financial performance of each segment using segment adjusted operating income, which excludes: (i) acquisition and divestiture related items (including acquisition-related intangible amortization); (ii) stock-based compensation; (iii) restructuring and other costs; (iv) gains on divestitures; (v) debt restructuring costs; (vi) impairment charges

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and asset write-offs and (vii) unallocated corporate expenses. For the year ended December 31, 2016, segment adjusted operating income also excluded a vendor settlement. Additionally, we do not allocate foreign currency gains and losses, financing interest expense, unrealized and realized gains and losses on derivative instruments, income taxes and net gains or losses from non-controlling interest to our operating segments.

The following table reconciles segment adjusted operating income to income before income taxes:

	Year ended December 31,
(In thousands)	2018			2017			2016
Segment adjusted operating income
Fleet Solutions	$	459,646		$	369,872		$	254,225
Travel and Corporate Solutions	135,379			96,660			80,699
Health and Employee Benefit Solutions	44,931			46,846			37,745
Total segment adjusted operating income	$	639,956		$	513,378		$	372,669
Reconciliation:
Total segment adjusted operating income	$	639,956		$	513,378		$	372,669
Less:
Unallocated corporate expenses	58,095			53,753			46,199
Acquisition-related intangible amortization	138,186			153,810			97,829
Other acquisition and divestiture related items	4,143			5,000			20,879
Debt restructuring	4,425			2,563			—
Stock-based compensation	35,103			30,487			19,742
Restructuring and other costs	13,717			11,129			13,995
Impairment charges and asset write-offs	5,649			44,171			—
Gain on divestiture	—			(20,958		)	—
Vendor settlement	—			—			15,500
Operating income	$	380,638		$	233,423		$	158,525
Financing interest expense	(105,023		)	(107,067		)	(113,418		)
Net foreign currency (loss) gain	(38,800		)	31,487			(9,233		)
Net realized and unrealized gains on fuel price derivatives	—			—			711
Non-cash adjustments related to tax receivable agreement	(775		)	15,259			(563		)
Net unrealized gains on financial instruments	2,579			1,314			12,908
Income before income taxes	$	238,619		$	174,416		$	48,930

Assets are not allocated to the segments for internal reporting purposes.

Geographic Data

Revenue by principal geographic area, based on the country in which the sale originated, was as follows:

	Year ended December 31,
(In thousands)	2018		2017		2016
United States	$	1,287,405	$	1,037,322	$	839,917
Australia	60,518		62,030		53,068
Other international1	144,716		149,225		119,503
Total revenues	$	1,492,639	$	1,248,577	$	1,012,488

¹ No single country, other than the United States and Australia, made up more than 5 percent of total revenues for any of the years presented.

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Net property, equipment and capitalized software is subject to geographic risks because it is generally difficult to move and relatively illiquid. Net property, equipment and capitalized software by principal geographic area was as follows:

	Year ended December 31,
(In thousands)	2018		2017		2016
United States	$	176,111	$	148,490	$	146,165
International1	11,757		15,418		21,113
Net property, equipment and capitalized software	$	187,868	$	163,908	$	167,278

¹ No single country, other than the United States, made up more than 5 percent of total net property, equipment and capitalized software for any of the years presented.

24. Supplementary Regulatory Capital Disclosure

The Company’s subsidiary, WEX Bank is subject to various regulatory capital requirements administered by the FDIC and the Utah Department of Financial Institutions. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, WEX Bank must meet specific capital guidelines that involve quantitative measures of WEX Bank’s assets, liabilities, and certain off-balance-sheet items. WEX Bank’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. Failure to meet minimum capital requirements can initiate certain mandatory and possible additional discretionary actions by regulators that, if undertaken, could limit our business activities and have a material effect on our business, results of operations and financial condition.

Quantitative measures established by regulation to ensure capital adequacy require WEX Bank to maintain minimum amounts and ratios as defined in the regulations. As of December 31, 2018, the most recent FDIC exam report categorized WEX Bank as “well capitalized” under the regulatory framework for prompt corrective action. There are no conditions or events subsequent to that examination report that management believes have changed WEX Bank’s capital rating.

The following table presents WEX Bank’s actual and regulatory minimum capital amounts and ratios:    

	Actual Amount		Ratio		Minimum for Capital Adequacy Purposes Amount		Ratio		Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount		Ratio
December 31, 2018
Total Capital to risk-weighted assets	$	323,178	12.82	%	$	201,749	8.00	%	$	252,186	10.00	%
Tier 1 Capital to average assets	$	305,734	10.88	%	$	112,401	4.00	%	$	140,501	5.00	%
Common equity to risk-weighted assets	$	305,734	12.12	%	$	113,484	4.50	%	$	163,921	6.50	%
Tier 1 Capital to risk-weighted assets	$	305,734	12.12	%	$	151,312	6.00	%	$	201,749	8.00	%
December 31, 2017
Total Capital to risk-weighted assets	$	316,129	13.38	%	$	188,991	8.00	%	$	236,239	10.00	%
Tier 1 Capital to average assets	$	304,555	12.50	%	$	97,452	4.00	%	$	121,815	5.00	%
Common equity to risk-weighted assets	$	304,555	12.89	%	$	106,308	4.50	%	$	153,555	6.50	%
Tier 1 Capital to risk-weighted assets	$	304,555	12.89	%	$	141,743	6.00	%	$	188,991	8.00	%

25. Subsequent Events

Business Acquisitions

On January 16, 2019, the Company entered into an agreement to acquire Discovery Benefits, Inc., an employee benefits administrator, for total cash consideration of approximately $425 million, including $50 million which will be deferred until January of 2020. State Bankshares, Inc., the seller of Discovery Benefits, also retained a 4.9% equity interest in the entity resulting from the combination of WEX Health and Discovery Benefits. This acquisition will provide our partners and customers with a more

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Table of ContentsWEX INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (continued)

comprehensive suite of products and services and opens go-to-market channels to include consulting firms and brokers. The Company closed this transaction on March 5, 2019.

On February 14, 2019, the Company acquired Pavestone Capital LLC, a recourse factoring company that provides working capital to businesses for a purchase price of $30 million, subject to net working capital adjustments. This acquisition is expected to complement our existing Fleet factoring business.

2016 Credit Agreement Amendment

On January 18, 2019, the Company amended its 2016 Credit Agreement. The amendment provides an additional tranche A term loan in the principal amount of $300.0 million, which the Company borrowed at execution to fund a portion of the consideration payable upon the closing of the Noventis acquisition. In addition, the amendment provides delayed draw commitments for an incremental $300.0 million in delayed draw commitments. On March 5, 2019, the Company fully drew down this commitment, consisting of $250.0 million in tranche Aterm loans and an incremental $50.0 million of revolving credit in order to fund the acquisition of Discovery Benefits, Inc. The Company paid certain customary fees in connection with the amendment.

Interest Rate Swap Agreements

On March 12, 2019, the Company entered into three interest rate swap contracts. Collectively, these derivative contracts are intended to fix the future interest payments associated with $450.0 million of our variable rate borrowings at interest rates between 2.413% and 2.425%. 

26. Quarterly Financial Results (Unaudited)

Summarized quarterly results for the years ended December 31, 2018 and 2017, which have been changed to reflect the Revision as described in Note 1, Summary of Significant Accounting Policies, are as follows:

	Three months ended
(In thousands, except per share data)	March 31		June 30		September 30		December 31
2018
Total revenues	$	354,028	$	370,798	$	386,617	$	381,196
Operating income	$	83,859	$	100,424	$	102,564	$	93,791
Net income attributable to shareholders	$	51,970	$	38,424	$	56,644	$	21,257
Earnings per share:
Basic	$	1.21	$	0.89	$	1.31	$	0.49
Diluted	$	1.20	$	0.88	$	1.30	$	0.49
2017
Total revenues	$	292,453	$	303,868	$	320,677	$	331,579
Operating income	$	56,701	$	52,447	$	50,819	$	73,456
Net income attributable to shareholders(a)	$	26,879	$	19,770	$	26,232	$	87,181
Earnings per share:(a)
Basic	$	0.63	$	0.46	$	0.61	$	2.03
Diluted	$	0.62	$	0.46	$	0.61	$	2.02

^(a) The three months ended December 31, 2017 includes a tax benefit of $60.6 million as a result of the 2017 Tax Act.

Basic and diluted net income per share are computed independently for each quarter presented. Therefore, the sum of quarterly basic and diluted net income per share information may not equal annual basic and diluted net income per share.

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ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

Not applicable.

ITEM 9A. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Our management, under the supervision and with the participation of the principal executive officer and principal financial officer of WEX Inc., evaluated the effectiveness of the Company’s disclosure controls and procedures as of the end of the period covered by this report. “Disclosure controls and procedures” are controls and other procedures of a company that are designed to ensure that information required to be disclosed by the company in the reports that it files or submits under the Securities Exchange Act of 1934, within the time periods specified in the SEC’s rules and forms, is recorded, processed, summarized and reported, and is accumulated and communicated to the company’s management, including its principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure. Based on their evaluation, the principal executive officer and principal financial officer of WEX Inc. concluded that the Company’s disclosure controls and procedures were not effective as of December 31, 2018 due to the material weaknesses in internal control over financial reporting described below.

Management’s Annual Report on Internal Control Over Financial Reporting

WEX Inc.’s management is responsible for establishing and maintaining adequate internal control over financial reporting. Internal control over financial reporting is defined in Rule 13a-15(f) promulgated under the Exchange Act as a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with accounting principles generally accepted in the United States of America. Internal control over financial reporting includes maintaining records that in reasonable detail accurately and fairly reflect our transactions and disposition of assets; providing reasonable assurance that transactions are recorded as necessary for preparation of our financial statements; providing reasonable assurance that receipts and expenditures are made only in accordance with management and Board authorizations; and providing reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of our assets that could have a material effect on our financial statements. Because of its inherent limitations, internal control over financial reporting is not intended to provide absolute assurance that a misstatement of our financial statements would be prevented or detected. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions or that the degree of compliance with policies or procedures may deteriorate.

Under the supervision and with the participation of management, including the principal executive officer and principal financial and accounting officer, an evaluation was conducted of the effectiveness of the internal control over financial reporting based on the framework in Internal Control - Integrated Framework (2013) issued by The Committee of Sponsoring Organizations of the Treadway Commission. Based on our evaluation under the framework in Internal Control - Integrated Framework (2013),management concluded that WEX Inc.’s internal control over financial reporting was not effective as of December 31, 2018.

As discussed in Item 8 - Note 1, Summary of Significant Accounting Policies, during the Company’s 2018 year-end close process, management identified certain immaterial errors in the financial statements of our Brazilian subsidiary that were consolidated into certain of our previously filed financial statements.  The errors, which began to be made before 2015, are primarily related to accounts receivable and accounts payable in Brazil in our Fleet Solutions segment. Management has revised prior period financial information from January 1, 2016 to September 30, 2018 (“Revision Period”) to correct for the errors identified related to the Brazilian subsidiary, and other immaterial errors impacting prior years that were not previously recorded. The errors identified related to our Brazilian subsidiary resulted from several control deficiencies that were in existence during the Revision Period and at December 31, 2018, including:

• We did not maintain an effective control environment at our Brazilian subsidiary as evidenced by: (i) an insufficient number of personnel with an appropriate level of knowledge of the Company’s processing platforms and overall financial reporting process, and (ii) an insufficient number of personnel appropriately qualified to perform control activities.

• We did not have control activities that were designed and operating effectively at our Brazilian subsidiary as evidenced by: (i) reconciliation of balance sheet accounts not being prepared consistently, (ii) lack of precision in review controls to identify all potential errors and (iii) lack of oversight and approval of journal entries.

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• We did not have sufficient monitoring activities in place to ensure effective corporate oversight and monitoring of control activities at our individually insignificant subsidiaries.

We believe the control deficiencies described herein represent material weaknesses in our internal control over financial reporting at December 31, 2018 since such deficiencies result in a reasonable possibility that a material misstatement in our annual or interim consolidated financial statements may not be prevented or detected on a timely basis by our internal controls. We believe that the failure to prevent or timely detect the aforementioned Brazilian subsidiary errors in our consolidated financial statements were attributable to the deficiencies identified.

Our internal control over financial reporting at December 31, 2018, has been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their report on our internal control over financial reporting, which follows below.

Remediation Activities

We are actively engaged in the implementation of a remediation plan to ensure that controls contributing to the material weaknesses are designed appropriately and will operate effectively. The remediation actions that we are taking and expect to take include the following:

• Evaluating the sufficiency, experience, and training of our internal personnel at our Brazilian subsidiary and hiring additional qualified personnel or using external resources.

• Implementing control activities at our Brazilian subsidiary that address relevant financial statement risks, including account reconciliations, variance analysis and journal entry procedures.

• Implementing additional corporate monitoring activities over our individually insignificant subsidiaries.

Management believes that these efforts will effectively remediate the material weaknesses. However, the material weaknesses in our internal control over financial reporting will not be considered remediated until the new controls are fully implemented, in operation for a sufficient period of time, and tested and concluded by management to be designed and operating effectively. We cannot provide any assurance that these remediation efforts will be successful or that our internal control over financial reporting will be effective as a result of these efforts. Management will test, evaluate, and audit the implementation of these new processes and internal controls during fiscal 2019 to ascertain whether they are designed and operating effectively to provide reasonable assurance that they will prevent or detect a material error in the Company’s financial statements. Subject to the foregoing, management is working towards having these remediation efforts completed by the time we issue our December 31, 2019 financial statements. Management is committed to continuous improvement of our internal control over financial reporting and will continue to diligently review our financial reporting controls and procedures.

As described in Item 8 - Note 1, Summary of Significant Accounting Policies, the Company has revised prior period financial statements to correct for the errors resulting from the material weaknesses described above.  As a result of the procedures performed to correct these errors, we believe that the consolidated financial statements included in this Annual Report on Form 10-K for the year ended December 31, 2018 fairly present, in all material respects, our financial position, results of operations and cash flows for the periods presented in conformity with GAAP. 

We believe that the remediation measures described above will strengthen our internal control over financial reporting and remediate the material weaknesses we have identified. We expect that our remediation efforts, including design, implementation and testing will continue throughout fiscal year 2019.

Change in Internal Control Over Financial Reporting

Other than the material weaknesses noted above, there has been no change in our internal control over financial reporting during the fiscal quarter ended December 31, 2018 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of WEX Inc.

Opinion on Internal Control over Financial Reporting

We have audited the internal control over financial reporting of WEX Inc. and subsidiaries (the “Company”) as of December 31, 2018 based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, because of the effect of the material weaknesses identified below on the achievement of the objectives of the control criteria, the Company has not maintained effective internal control over financial reporting as of December 31, 2018, based on criteria established in Internal Control - Integrated Framework (2013) issued by COSO.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated financial statements as of and for the year ended December 31, 2018, of the Company and our report dated March 18, 2019, expressed an unqualified opinion on those financial statements.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Annual Report on Internal Control Over Financial Reporting appearing at Item 9A. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Material Weakness

A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement of the company’s annual or interim financial statements will not be prevented or detected on a timely basis. The following material weaknesses have been identified and included in management's assessment:

• The Company did not maintain an effective control environment at its Brazilian subsidiary as evidenced by: (i) an insufficient number of personnel with an appropriate level of knowledge of the Company’s processing platforms and overall financial reporting process, and (ii) an insufficient number of personnel appropriately qualified to perform control activities.

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• The Company did not have control activities that were designed and operating effectively at its Brazilian subsidiary as evidenced by: (i) reconciliation of balance sheet accounts not being prepared consistently, (ii) lack of precision in review controls to identify all potential errors and (iii) lack of oversight and approval of journal entries.

• The Company did not have sufficient monitoring activities in place to ensure effective corporate oversight and monitoring of control activities at its individually insignificant subsidiaries.

These material weaknesses were considered in determining the nature, timing, and extent of audit tests applied in our audit of the consolidated financial statements as of and for the year ended December 31, 2018, of the Company, and this report does not affect our report on such financial statements.

/s/ Deloitte & Touche LLP

Boston, Massachusetts

March 18, 2019

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ITEM 9B. OTHER INFORMATION

Not applicable.

PART III

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

See the information in the Company’s proxy statement for the 2019 Annual Meeting of Stockholders captioned “Members of the Board of Directors,” “Non-Director Members of the Executive Management Team,” “Section 16(a) Beneficial Ownership Reporting Compliance,” “Director Nominations,” “Communications with the Board of Directors,” “Board and Committee Meetings” and “Corporate Governance Information,” which information is incorporated herein by reference.

Website Availability of Corporate Governance and Other Documents

The following documents are available on the Corporate Governance page of the investor relations section of the Company’s website, www.wexinc.com: (1) the Code of Business Conduct and Ethics, which covers all employees, officers and our board of directors, (2) the Company’s Corporate Governance Guidelines and (3) key Board Committee charters, including charters for the Audit, Corporate Governance and Compensation Committees. Stockholders also may obtain printed copies of these documents by submitting a written request to Investor Relations, WEX Inc., 1 Hancock Street Portland, Maine USA 04101. The Company intends to post on its website, www.wexinc.com, all disclosures that are required by law or NYSE listing standards concerning any amendments to, or waivers from, the Code of Business Conduct and Ethics.

ITEM 11. EXECUTIVE COMPENSATION

See the information in the Company’s proxy statement for the 2019 Annual Meeting of Stockholders captioned “Executive Compensation” and the related subsections, “Director Compensation” and “Compensation Committee Interlocks and Insider Participation,” which information is incorporated herein by reference.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

See the information in the Company’s proxy statement for the 2019 Annual Meeting of Stockholders captioned “Securities Authorized for Issuance Under Equity Compensation Plans” and “Principal Stockholders” and the related subsections, which information is incorporated herein by reference.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

See the information in the Company’s proxy statement for the 2019 Annual Meeting of Stockholders captioned “Director Independence” and “Certain Relationships and Related Transactions,” which information is incorporated herein by reference.

ITEM 14. PRINCIPAL ACCOUNTING FEES AND SERVICES

See the section of the Company’s proxy statement for the 2019 Annual Meeting of Stockholders captioned “Auditor Selection and Fees,” which information is incorporated herein by reference.

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PART IV

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

The following documents are filed as part of this report:

1. Financial Statements (see Index to Consolidated Financial Statements on page 66).

2. Financial statement schedules have been omitted since they are either not required or not applicable or the information is otherwise included herein.

3. The exhibit index attached to this Annual Report on Form 10–K is hereby incorporated by reference.

ITEM 16. FORM 10–K SUMMARY

None.

EXHIBIT INDEX

Exhibit  No.	Description
2.1	Unit Purchase Agreement, dated October 18, 2015, by and among WEX Inc., Mustang HoldCo 1 LLC, Warburg Pincus Private Equity (E&P) XI - B, L.P., Warburg Pincus Private Equity XI‑C, L.P., WP XI Partners, L.P., Warburg Pincus Private Equity XI‑B, L.P., WP Mustang Co‑Invest‑B, L.P., WP Mustang Co‑Invest‑C L.P., Warburg Pincus XI (E&P) Partners‑B, L.P., Warburg Pincus (E&P) XI, L.P., WP Mustang Topco LLC and Warburg Pincus Private Equity XI (Lexington), LLC (incorporated by reference to Exhibit 2.1 to our Current Report on Form 8-K filed with the SEC on October 19, 2015, File No. 001-32426)
3.1	Certificate of Incorporation (incorporated by reference to Exhibit No. 3.1 to our Current Report on Form 8-K filed with the SEC on March 1, 2005, File No. 001-32426)
3.2	Certificate of Ownership and Merger merging WEX Transitory Corporation with and into Wright Express Corporation (incorporated by reference to Exhibit No. 3.1 to our Current Report on Form 8-K filed with the SEC on October 30, 2012, File No. 001-32426)
3.3	Amended and Restated By-Laws of WEX Inc. (incorporated by reference to Exhibit No. 3.1 to our Current Report on Form 8-K filed with the SEC on March 18, 2014, File No. 001-32426)
4.1	Indenture, dated as of January 30, 2013, among WEX Inc., the Guarantors named therein, and The Bank of New York Mellon Trust Company, N.A. (incorporated by reference to Exhibit No. 4.1 to our Current Report on Form 8-K filed with the SEC on February 1, 2013, File No. 001-32426)
4.2	Supplemental Indenture, dated as of July 1, 2016 to the Indenture, dated as of January 30, 2013 among WEX Inc., the additional subsidiary guarantors thereto and The Bank of New York Mellon Trust Company, N.A. (incorporated by reference to Exhibit No. 4.1 to our Current Report on Form 8-K filed with the SEC on July 1, 2016, File No. 001-32426)
4.3	U.S. Security Agreement, made by WEX Inc., and the certain of its subsidiaries, as pledgors, assignors and debtors dated as of July 1, 2016, in favor of Bank of America, as collateral agent for the Lenders (incorporated by reference to Exhibit No. 4.2 to our Current Report on Form 8-K filed with the SEC on July 1, 2016, File No. 001-32426)
10.1	Form of director indemnification agreement (incorporated by reference to Exhibit No. 10.1 to our Current Report on Form 8-K filed with the SEC on June 8, 2009, File No. 001-32426)
10.2	Tax Receivable Agreement, dated as of February 22, 2005, by and between Cendant Corporation and Wright Express Corporation (incorporated by reference to Exhibit No. 10.3 to our Current Report on Form 8-K filed with the SEC on March 1, 2005, File No. 001-32426)
10.3	Tax Receivable Prepayment Agreement dated June 26, 2009 by and between Wright Express Corporation and Realogy Corporation (incorporated by reference to Exhibit No. 10.1 to our Current Report on Form 8-K filed with the SEC on July 2, 2009, File No. 001-32426)

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10.4	Ratification Agreement dated June 26, 2009 by and among Wright Express Corporation, Realogy Corporation, Wyndham Worldwide Corporation and Avis Budget Group, Inc. (incorporated by reference to Exhibit No. 10.2 to our Current Report on Form 8-K filed with the SEC on July 2, 2009, File No. 001-32426)
10.5	Guarantee, dated as of June 26, 2009, by Apollo Investment Fund VI, L.P., Apollo Overseas Partners VI, L.P., Apollo Overseas Partners (Delaware) VI, L.P., Apollo Overseas Partners (Delaware892) VI, L.P. and Apollo Overseas Partners (Germany) VI, L.P. in favor of Wright Express Corporation (incorporated by reference to Exhibit No. 10.3 to our Quarterly Report on Form 10-Q filed with the SEC on July 30, 2009, File No. 001-324426)
10.6	Investors Rights Agreement, dated as of July 1, 2016, by and among WEX Inc., Mustang HoldCo 1 LLC, Warburg Pincus Private Equity (E&P) XI‑ B, L.P., Warburg Pincus Private Equity XI – C, L.P., WP XI Partners, L.P., Warburg Pincus Private Equity XI – B, L.P., WP Mustang Co-Invest – B L.P., WP Mustang Co-Invest – C L.P., Warburg Pincus XI (E&P) Partners – B, L.P., Warburg Pincus (E&P) XI, L.P., WP (Lexington) Holdings II, L.P., Warburg Pincus Private Equity (Lexington) XI – A, L.P., Warburg Pincus XI (Lexington) Partners – A , L.P., WP Mustang Co-Invest LLC and the other investors party thereto (incorporated by reference to Exhibit No. 10.1 to our Current Report on Form 8-K filed with the SEC on July 1, 2016, File No. 001-32426)
10.7	Credit Agreement among WEX Inc., certain of its subsidiaries as borrowers, WEX Card Holding Australia Pty Ltd., as designated borrower, Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer, and the other lenders party thereto (incorporated by reference to Exhibit No. 10.2 to our Current Report on Form 8-K filed with the SEC on July 1, 2016, File No. 001-32426)
10.8	First Amendment to Credit Agreement dated July 3, 2017, between WEX Inc., Wright Express International Holdings Limited, WEX Card Holdings Australia Pty Ltd. and Bank of America (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on July 3, 2017, File No. 001-32426)
10.9	Second Amendment to Credit Agreement dated October 30, 2017, between WEX Inc., Wright Express International Holdings Limited, WEX Card Holdings Australia Pty Ltd., Bank of America and Santander Bank, N.A. (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on November 3, 2017, File No. 001-32426)
10.10	Third Amendment to Credit Agreement dated January 17, 2018, between WEX Inc., Wright Express International Holdings Limited, WEX Card Holdings Australia Pty Ltd., Bank of America (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on January 18, 2018, File No. 001-32426)
10.11	Fourth Amendment to Credit Agreement dated August 24, 2018, between WEX Inc., Wright Express International Holdings Limited, WEX Card Holdings Australia Pty Ltd., Bank of America (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on August 24, 2018, File No. 001-32426)
10.12	Fifth Amendment to Credit Agreement dated January 18, 2019, between WEX Inc., Wright Express International Holdings Limited, WEX Card Holdings Australia Pty Ltd., Bank of America (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on January 22, 2019, File No. 001-32426)
†10.13	Wright Express Corporation Amended 2010 Equity and Incentive Plan (incorporated by reference to Exhibit No. 99.1 to our Current Report on Form 8-K filed with the SEC on May 21, 2010, File No. 001-32426)
†10.14	Wright Express Corporation Amended and Restated Non-Employee Directors Deferred Compensation Plan (incorporated by reference to Exhibit No. 10.2 to our Current Report on Form 8-K filed with the SEC on January 7, 2009, File No. 001-32426)
†10.15	2014 Form of Annual Restricted Stock Unit Agreement (incorporated by reference to Exhibit 10.3 to our Quarterly Report on Form 10-Q filed with the SEC on April 30, 2014, File No. 001-32426)
†10.16	Form of 2014 Growth Grant - Performance-Based Restricted Stock Unit Agreement (incorporated by reference to Exhibit 10.4 to our Quarterly Report on Form 10-Q filed with the SEC on April 30, 2014, File No. 001-32426)
† 10.17	2015 Section 162(m) Performance Incentive Plan (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on May 21, 2015, File No. 001-32426)
* † 10.18	WEX Inc. Executive Severance Pay and Change in Control Plan dated March 5, 2018.
† 10.19	Form of Employment Agreement for David Maxsimic and Melissa Smith (incorporated by reference to Exhibit No. 10.6 to our Current Report on Form 8-K filed with the SEC on January 7, 2009, File No. 001-32426)
† 10.20	Form of Employment Agreement for Robert Cornett, Hilary Rapkin and Jamie Morin (incorporated by reference to Exhibit No. 10.7 to our Current Report on Form 8-K filed with the SEC on January 7, 2009, File No. 001-32426)

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† 10.21	Form of Long Term Incentive Program Award Agreement under the Amended and Restated Wright Express Corporation 2005 Equity and Incentive Plan (incorporated by reference to Exhibit No. 99.1 to our Current Report on Form 8-K filed with the SEC on April 6, 2006, File No. 001-32426)
† 10.22	Form of Non-Employee Director Long Term Incentive Program Award Agreement under the Amended and Restated Wright Express Corporation 2005 Equity and Incentive Plan (for grants received prior to December 31, 2006) (incorporated by reference to Exhibit 10.3 to our Quarterly Report on Form 10-Q filed with the SEC on August 5, 2008, File No. 001-32426)
† 10.23	Form of Wright Express Corporation Long Term Incentive Program 2010 Growth Grant Stock Non-Statutory Stock Option Award Agreement under the Amended and Restated Wright Express Corporation 2005 Equity and Incentive Plan (incorporated by reference to Exhibit No. 10.5 to our Quarterly Report on Form 10-Q filed with the SEC on April 30, 2010, File No. 001-32426)
† 10.24	Form of Wright Express Corporation Option Agreement under the Wright Express Corporation 2010 Equity and Incentive Plan (incorporated by reference to Exhibit No. 10.29 to our Annual Report on Form 10-K filed with the SEC on February 28, 2011, File No. 001-32426)
† 10.25	2015 Form of WEX Inc. Long Term Incentive Program Non-Statutory Stock Option Award Agreement (incorporated by reference to Exhibit 10.1 to our Quarterly Report on Form 10-Q filed with the SEC on May 1, 2015, File No. 001-32426)
† 10.26	Form of Wright Express Corporation Non-Employee Director Compensation Plan Award Agreement under the Wright Express Corporation 2010 Equity and Incentive Plan (incorporated by reference to Exhibit No. 10.31 to our Annual Report on Form 10-K filed with the SEC on February 28, 2011, File No. 001-32426)
† 10.27	Offer Letter dated November 3, 2015 between WEX Inc. and Mr. Simon (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on November 5, 2015, File No. 001-32426)
† 10.28	Severance and Restricted Covenant Agreement between Roberto Simon and WEX Inc., dated March 3, 2016 (incorporated by reference to Exhibit 10.1 to our Quarterly Report on Form 10-Q filed with the SEC on April 28, 2016, File No. 001-32426)
†   10.29	Form of Non Employee Director Compensation Plan effective September 21, 2016 (incorporated by reference to Exhibit 10.1 to our Quarterly Report on Form 10-Q filed with the SEC on August 9, 2017, File No. 001-32426)
† 10.30	Form of Non Employee Director Compensation Plan effective October 1, 2017 (incorporated by reference to Exhibit 10.1 to our Quarterly Report on Form 10-Q filed with the SEC on November 8, 2017, File No. 001-32426)
† 10.31	Employment Agreement for Scott Phillips dated October 16, 2015 (incorporated by reference to Exhibit 10.29 to our Annual Report on Form 10-K filed with the SEC on March 1, 2018, File No. 001-32426)
† 10.32	Noncompetition, Nonsolicitation, Confidentiality, and Inventions Agreement for Scott Phillips dated October 16, 2015 (incorporated by reference to Exhibit 10.30 to our Annual Report on Form 10-K filed with the SEC on March 1, 2018, File No. 001-32426)
† 10.33	First Amendment to Employment Agreement for Scott Phillips dated November 1, 2017 (incorporated by reference to Exhibit 10.31 to our Annual Report on Form 10-K filed with the SEC on March 1, 2018, File No. 001-32426)
† 10.34	First Amendment to Noncompetition, Nonsolicitation, Confidentiality, and Inventions Agreement for Scott Phillips dated November 1, 2017 (incorporated by reference to Exhibit 10.32 to our Annual Report on Form 10-K filed with the SEC on March 1, 2018, File No. 001-32426)
10.35	Southern Cross WEX 2015-1 Trust - Receivables Acquisition and Servicing Agreement (incorporated by reference to Exhibit 10.1 to our Quarterly Report on Form 10-Q filed with the SEC on July 31, 2015, File No. 001-32426)
10.36	Southern Cross WEX 2015-1 Trust - Guarantee and Indemnity (incorporated by reference to Exhibit 10.2 to our Quarterly Report on Form 10-Q filed with the SEC on July 31, 2015, File No. 001-32426)
10.37	Southern Cross WEX 2015-1 Trust General Security Agreement (incorporated by reference to Exhibit 10.3 to our Quarterly Report on Form 10-Q filed with the SEC on July 31, 2015, File No. 001-32426)
10.38	Southern Cross WEX 2015-1 Trust Class A Facility Deed (incorporated by reference to Exhibit 10.4 to our Quarterly Report on Form 10-Q filed with the SEC on July 31, 2015, File No. 001-32426)

131

10.39	Southern Cross WEX 2015-1 Trust Class B Facility Deed (incorporated by reference to Exhibit 10.5 to our Quarterly Report on Form 10-Q filed with the SEC on July 31, 2015, File No. 001-32426)
10.40	Commitment Letter, dated as of October 18, 2015, by and among WEX Inc., Bank of America, N.A., Merrill Lynch, Pierce, Fenner & Smith Incorporated, SunTrust Bank, SunTrust Robinson Humphrey and MUFG Union Bank, N.A (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on October 19, 2015, File No. 001-32426)
10.41	Consent and Amendment Under Credit Agreement, dated as of February 27, 2019, by and among WEX Inc., the subsidiaries of WEX Inc. identified therein, the lenders party thereto and Bank of America, N.A., as administrative agent (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filed with the SEC on March 1, 2019, File No. 001-32426).
*   21.1	Subsidiaries of the registrant
*   23.1	Consent of Independent Registered Accounting Firm – Deloitte & Touche LLP
*   31.1	Certification of Chief Executive Officer of WEX INC. pursuant to Rule 13a-14(a) promulgated under the Securities Exchange Act of 1934, as amended
*   31.2	Certification of Chief Financial Officer of WEX INC. pursuant to Rule 13a-14(a) promulgated under the Securities Exchange Act of 1934, as amended
*   32.1	Certification of Chief Executive Officer of WEX INC. pursuant to Rule 13a-14(b) promulgated under the Securities Exchange Act of 1934, as amended, and Section 1350 of Chapter 63 of Title 18 of the United States Code
*   32.2	Certification of Chief Financial Officer of WEX INC. pursuant to Rule 13a-14(b) promulgated under the Securities Exchange Act of 1934, as amended, and Section 1350 of Chapter 63 of Title 18 of the United States Code
*   101.INS	XBRL Instance Document
*   101.SCH	XBRL Taxonomy Extension Schema Document
*   101.CAL	XBRL Taxonomy Calculation Linkbase Document
*   101.LAB	XBRL Taxonomy Label Linkbase Document
*   101.PRE	XBRL Taxonomy Presentation Linkbase Document
*   101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
*	Filed with this report.
†	Denotes a management contract or compensatory plan or arrangement required to be filed as an exhibit pursuant to Item 15(b) of this Form 10-K.

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	WEX INC.
March 18, 2019	By:	/s/  Roberto Simon
		Roberto Simon Chief Financial Officer (principal financial officer and principal accounting officer)

132

Pursuant to the requirements of the Securities Exchange Act of 1934, this Report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

March 18, 2019	/s/  Melissa D. Smith
	Melissa D. Smith
	President, Chief Executive Officer and Director
	(principal executive officer)
March 18, 2019	/s/  Roberto Simon
	Roberto Simon
	Chief Financial Officer
	(principal financial and accounting officer)
March 18, 2019	/s/ Michael E. Dubyak
	Michael E. Dubyak
	Chairman of the Board
March 18, 2019	/s/  Rowland T. Moriarty
	Rowland T. Moriarty
	Lead Director
March 18, 2019	/s/ John E. Bachman
	John E. Bachman
	Director
March 18, 2019	/s/  Shikhar Ghosh
	Shikhar Ghosh
	Director
March 18, 2019	/s/  James C. Neary
	James C. Neary
	Director
March 18, 2019	/s/  Kirk Pond
	Kirk Pond
	Director
March 18, 2019	/s/  Susan Sobbott
	Susan Sobbott
	Director
March 18, 2019	/s/  Regina O. Sommer
	Regina O. Sommer
	Director
March 18, 2019	/s/  Jack A. VanWoerkom
	Jack A. VanWoerkom
	Director

133

EX-10.18

Exhibit 10.18

WEX INC.

EXECUTIVE SEVERANCE PAY AND
CHANGE IN CONTROL PLAN

(Effective as of March 5, 2018, the “Effective Date”)

ARTICLE 1
PURPOSE

1.1General Purpose. The WEX Inc. Executive Separation Pay and Change in Control Plan, as set forth herein (the “Plan”), is intended to provide certain benefits for eligible executive level management employees (“Participants,” as defined below) of WEX Inc., a Delaware corporation, and its Subsidiaries (collectively, the “Company”) where the Participant is terminated by the Company without Cause (as hereinafter defined), or the Participant resigns from his or her employment with the Company for Good Reason (as hereinafter defined), as well as to provide certain enhanced benefits where such a termination of employment occurs in connection with a transaction that constitutes a Change in Control (as hereinafter defined).

1.2Coverage Under ERISA. It is the intention of the Company that the Plan be a welfare benefit plan providing severance benefits, as defined in the Employee Retirement Income Security Act of 1974, as amended (“ERISA”).

ARTICLE 2
DEFINITIONS

2.1Defined Terms. Whenever used in the Plan, capitalized terms shall, unless the context clearly indicates otherwise, have the same meanings set forth below:

2.1.1“Administrator” means the Company or any Committee or person appointed or designated to act as Administrator on the Company’s behalf.

2.1.2“Base Salary” means annual base salary, whether paid in the form of cash or otherwise, at the level paid or provided to the Participant by his or her Employer at the time the Participant’s termination of employment occurs, but does not include overtime, incentive pay, bonuses, shift premiums, commissions, and any other special or irregular forms of compensation including but not limited to stock options, restricted stock awards or restricted stock units, deferred compensation distributions, long term disability payments, benefit program reimbursements and perquisites.

2.1.3“Board” means the board of directors of the Company.

2.1.4“Bonus Equivalent” shall mean an amount equal to a Participant’s target annual incentive amount for the year in which the Participant’s termination of employment occurs.

2.1.5“Cause” shall mean, in the good faith determination of the Board, any of the following:

(a)A Participant’s willful failure to substantially perform his or her duties as an employee of the Company (other than any such failure resulting from incapacity due to physical or mental illness);

(b)A Participant’s act of fraud, embezzlement, gross misconduct, dishonesty or similar conduct, in each case against the Company;

(c)A Participant’s conviction of, indictment for, or plea of guilty or nolo contendere (or a similar plea) to, a felony or any crime involving dishonesty, breach of trust, money laundering, drug trafficking, moral turpitude or the personal enrichment of Executive at the expense of the Company;

(d)A Participant’s gross negligence in the performance of his or her duties;

(e)A Participant’s knowing or negligent making of a false certification to the Company pertaining to its financial statements;

(f)A Participant’s willful engagement in conduct that is demonstrably and materially injurious to the Company, monetarily or otherwise, including, without limitation, a Participant’s breach of fiduciary duties owed to the Company;

(g)A Participant’s violation of any federal, state or local law, regulation or rule applicable to the Company and/or its employees, including, but not limited to, the rules of any self-regulatory organization of which the Company or one of its Subsidiaries or affiliates is a member or any exchange or market on which securities of the Company are listed;

(h)A Participant’s inability to obtain any required approvals, licenses or certifications for the performance of work from any regulatory or self-regulatory agency;

(i)A Participant’s material breach of any non-competition, non-solicitation, non-poach, intellectual property, work product, confidentiality, non-disclosure, return of property or other material covenant contained in his or her employment agreement or otherwise entered into with the Company;

(j)A Participant’s act of dishonesty resulting in or intending to result in personal gain at the expense of the Company;

(k)A Participant’s engaging in any material act that is intended or may be reasonably expected to harm the reputation, business prospects, or operations of the Company; or

(l)A Participant’s knowing or grossly negligent violation of any provision of the Participant’s employment agreement or any knowing violation of the

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Company’s Code of Business Conduct and Ethics, employee handbook or other established policies.

2.1.6A “Change in Control” shall have the meaning ascribed to this term in the WEX Inc. Amended 2010 Equity and Incentive Plan.

2.1.7“Change in Control Period” shall mean the period commencing ninety (90) days prior to the date of the Change in Control and ending on the first anniversary of the Change in Control.

2.1.8“Code” means the Internal Revenue Code of 1986, as amended, and regulations issued thereunder.

2.1.9“Employer” means the Company and its Subsidiaries, and, as to a Participant, the entity that is that Participant’s employer.

2.1.10“ERISA” means the Employee Retirement Income Security Act of 1974, as amended, and regulations issued thereunder.

2.1.11“Good Reason” means any of the following, without the Participant’s consent:

(a)The occurrence of any material breach of the Participant’s employment agreement by the Company or any of its Subsidiaries, if applicable;

(b)A material reduction in a Participant’s Base Salary or annual bonus opportunity;

(c)Any material failure by the Company, following a Change in Control, to vest any grants under the LTI Plan consistent with the requirements of that Plan and the terms of the Participant’s grants thereunder;

(d)The Company’s failure, following a Change in Control, to obtain the assumption in writing of all of the Company’s material obligations under the Participant’s employment agreement and any of the Participant’s outstanding grants or awards by the successor to all or substantially all of the assets of the Company or any Subsidiary within 15 days after a reorganization, merger, consolidation, sale or other disposition of assets of the Company or such Subsidiary;

(e)A material adverse change in a Participant’s title, functions, duties, responsibilities or authority with the Company, which change would cause the Participant’s position to become one of materially lesser responsibility, importance or scope

(f)The relocation of the Participant’s principal place of employment to an office or location more than fifty (50) miles farther from the Participant’s residence as compared to as the Participant’s principal place of employment immediately prior to

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such relocation or as specified at the time of the Participant’s most recent employment agreement, as applicable.

Notwithstanding the foregoing, no such act, event or condition shall constitute Good Reason unless (A) the Participant has provided written notice of such act, event or condition to the Company specifying the event or condition claimed to constitute Good Reason within sixty (60) days following the initial occurrence or existence of such act, event or condition, (B) the Company has, after receipt of such notice of Good Reason from the Participant, failed to cure or correct such act, event or condition within sixty (60) days following the Company’s receipt of such notice, and (C) the Participant terminates employment within thirty (30) days after expiration of such cure period. If a Participant does not provide the Company with a written notice of termination for Good Reason within sixty (60) days of the Participant having knowledge of an act, event or condition constituting Good Reason, such act, event or condition occurrence will no longer constitute a basis for a Good Reason termination.

2.1.12“LTI Plan” means the Company’s shareholder approved incentive plan or plans providing for equity-based compensation grants, as such plan or plans may be in effect and amended and/or superseded from time to time.

2.1.13“Participant” means an executive employee who is classified by the Company as an active, full-time employee of the Company and who is either (i) the Chief Executive Officer of the Company, or (ii) designated by the Company on a form approved by the Administrator as an officer that has direct/solid line reporting responsibility to the Company’s Chief Executive Officer.

2.1.14“Plan Year” means the calendar year, except that the first Plan Year shall be the shorter period commencing on the Effective Date and ending on December 31, 2018.

2.1.15“Release” means a severance agreement and general release of claims, liability and rights in favor of the Company, its parents, Subsidiaries, affiliates, divisions, successors, related companies and welfare benefit plans, and each and all of their respective current or former employees, agents, officers, directors, shareholders, members, managers, representatives, attorneys, successors, predecessors, assigns, trustees, fiduciaries, administrators and insurers, and all persons acting by, through, under or in concert with any of them, and including a non-disparagement covenant in favor of the Company and its employees, agents, officers and directors, non-solicitation of customers and clients, non-competition, non-solicitation of employees and contractors, confidentiality/non-disclosure, confidential information, intellectual property, return of property, and cooperation covenants in favor of the Company and its affiliates, and such other covenants and provisions the Administrator deems necessary and appropriate to protect the business interests and rights of the Company and its affiliates, in a form and in substance used or approved by, and satisfactory to, the Administrator.

2.1.16“Severance Period” means the number of months of severance pay payable under the Plan to a Participant.

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2.1.17“Subsidiary” and “Subsidiaries” means all U.S. subsidiaries of the Company from time to time as determined by Administrator in its sole and absolute discretion.

ARTICLE 3
PARTICIPATION

3.1Eligibility for Participation. An executive employee will be eligible to participate in the Plan if, and only if, he or she qualifies as a Participant.

3.2Eligibility for Benefits. A Participant shall be eligible for severance pay benefits under the Plan if his or her employment is terminated involuntarily by the Company other than for Cause, or if the Participant resigns for “Good Reason,” except that in no event shall a Participant be eligible for severance pay benefits under the Plan in the event of any of the following circumstances:

3.2.1the transfer or assignment of a Participant to a Subsidiary or affiliate of the Company;

3.2.2a Participant’s termination of employment with the Company due to: (a) the Employee’s voluntary termination or resignation (other than for Good Reason); (b) retirement; (c) death; (d) disability; or (e) failure to return from an approved leave of absence (including leaves of absence for medical reasons); or

3.2.3a Participant’s termination of employment with the Company as a result of a court decree, a sale of stock or assets (whether in whole or in part), a merger or other combination, a spinoff or other divestiture, a management buyout, an outsourcing of a business unit or function, a reorganization, liquidation, dissolution or other winding up of a business involving the Company, provided that the Participant’s employment is continued or reinstated by an entity or organization that continues the business operations of the Company in which the Participant was employed without an extended break, or the Participant is hired by or offered employment with that entity or organization without an extended break.

ARTICLE 4
SEPARATION BENEFITS

4.1Schedule of Severance Pay Benefits. In the event a Participant’s employment with the Company or a Subsidiary is terminated by the Company without Cause, or by the Participant for Good Reason, the Participant shall, subject to the Participant’s timely execution of a Release (and not revoking the Release, if applicable), receive, in addition to any payments required by law or applicable Company policy, the following severance pay benefits:

4.1.1An amount equal to one and one-half (1.5) times the Participant’s Base Salary, payable in bi-weekly installments or other regular installments in accordance with the Company’s payroll practices, beginning on the sixtieth (60^th) day after the Participant’s termination of employment (the “Severance Payment Commencement Date”) for a period of eighteen (18) months; provided, however, that, notwithstanding the foregoing, any Participant

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who has been employed with the Company as an officer that has direct/solid line reporting responsibility to the Company’s Chief Executive Officer for a period of less than six (6) months shall be entitled to one-half (0.5) times such Participant’s Base Salary (rather than one and one-half (1.5) times such Base Salary); and

4.1.2An additional payment in the form of a one-time lump-sum cash payment, payable on or as soon as practicable following the Severance Payment Commencement Date, equal to twelve (12) times the value of the Company’s monthly share of the cost of coverage (i.e., premiums) for Participant’s group health coverage benefits as in effect for the Participant and the Participants’ beneficiaries immediately prior to the Participant’s termination of employment (the “Health Benefit”), if any. The additional payment shall be subject to all applicable taxes and other withholdings. This additional payment is intended to compensate a Participant for his/her post-termination health benefits coverage; however, there are no restrictions on the use of such additional payment.  It shall be the sole responsibility of a Participant who participates in a Company-sponsored benefit plan to elect to continue or convert his/her current plan coverage and comply with all applicable plan rules and deadlines.   Further, it shall be the responsibility of a Participant to investigate all coverage options available to him/her – including, without limitation, COBRA, a family member’s employer’s plan, or Health Insurance Marketplace coverage. For purposes of clarity and avoidance of doubt, the value of the Company’s monthly share of the cost of coverage for Participant’s Health Benefit shall be equal to the excess of (23) the cost for one (1) month pursuant to the health care continuation rights afforded by reason of the statute known as the Consolidated Omnibus Budget Reconciliation Act (or “COBRA”) of the Health Benefit, over (23) the amount paid by the Participant as an active employee for the Health Benefit immediately prior to the Participant’s termination of employment; provided, however, that in this calculation, any administrative cost that is added to the actuarially determined cost of COBRA continuation coverage shall not be included.

Notwithstanding anything in this Section 4.1 to the contrary, in the event the Participant breaches or violates any non-competition, non-solicitation, non-poach, intellectual property, work product, confidentiality, non-disclosure, return of property or other material covenant set forth in the Participant’s employment agreement or otherwise entered into by the Participant with the Company, as determined in the sole discretion of the Company, the Company shall have the right to cease or terminate the severance pay benefits otherwise provided for in the Plan, shall have no further obligation to make any severance pay benefits to the Participant, and the Participant shall immediately reimburse the Company in full for any severance pay benefits already paid to the Participant pursuant to the Plan, in addition to any and all other rights or remedies available to the Company under the Plan or applicable law.

4.2Other Severance Benefits. Notwithstanding anything in this Article 4, if, at the time a Participant’s employment with the Company terminates, the Participant is entitled to any severance or separation pay by reason of any pre-existing agreement or arrangement applicable to such Participant other than by reason of the terms of the Plan (“Other Separation Pay”), the severance pay benefits otherwise payable to the Participant under this Article 4 shall be reduced by the amount of such Participant’s Other Separation Pay. A Participant’s entitlement to Other

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Separation Pay shall be deemed to be severance pay benefits provided for under and shall be incorporated into the Plan for purposes of the Plan’s administrative procedures. To the extent any severance pay benefits under this Plan are subject to Code Section 409A, the provisions regarding the time and manner such severance pay benefits are to be made shall be preserved so as to avoid (if possible) a violation of the requirements of Code Section 409A that would be deemed to occur due to a change in time or manner of payment of a taxable benefit.

4.3Consequences of a Change in Control. In the event a Participant’s employment is terminated by the Company without Cause or by the Participant for Good Reason during a Change in Control Period, and provided the Participant executes, and does not thereafter revoke, a Release, the Participant shall be entitled to receive, in lieu of the severance pay provided for under Section 4.1.1 and additional payment provided for under Section 4.1.2, two (2) times the Participant’s Base Salary, plus an amount equal to two (2) times the Participant’s Bonus Equivalent, payable in bi-weekly installments or other regular installments in accordance with the Company’s payroll practices, beginning on the Severance Payment Commencement Date, for a period of twenty-four (24) months, and shall also be entitled to a lump sum payment equal to two times the payment calculated pursuant to Section 4.1.2, payable at the same time as the payment provided for under Section 4.1.2.

4.4Required Release and Other Requirements. As a condition to a Participant’s receipt of payments and/or benefits provided for under the Plan, the Participant must timely execute and deliver to the Company a Release, and all applicable revocation periods must have expired prior to the Severance Payment Commencement Date. The Company shall provide the Participant with the form of Release within ten (10) days following his or her termination of employment. A Participant’s eligibility to receive payments and/or benefits under the Plan shall automatically be null and void upon the Participant’s failure to timely sign, or subsequent revocation of, such Release. In addition, the Participant must execute such other documentation that formalizes the Participant’s resignation from the Board, the boards of any Subsidiaries or affiliates of the Company, and any other positions with the Company and its affiliates to be eligible for receipt of payments and/or benefits under the Plan.

4.5Excess Parachute Payments. Notwithstanding anything in this Article 4 to the contrary, in the event payments to a Participant under the Plan would cause any amounts to be subject to loss of deductibility pursuant to Code Section 280G and/or to excise taxes under Code Section 4999, the amount of the payments to such Participant shall be reduced, if possible, to the extent necessary so that no portion of the payments under the Plan are subject to the aforementioned provisions of the Code; provided, however, that the aforementioned reduction to Plan payments shall not be made (and payments of the Plan benefits shall be made in full) if such full payment of Plan benefits produces a better net after-tax position for the Participant (taking into account any applicable excise tax under Section 4999 of the Code and any other applicable taxes). In no event shall the Company be obligated to pay any tax gross-up payment to a Participant by reason of the Participant’s participation in the Plan.

4.6Reimbursement. Notwithstanding any other provision of the Plan, in the event that the Company (or one of its Subsidiaries or affiliates) hires or re-hires a person who

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previously received severance benefits under this Plan, and the number of months between the person’s termination of employment and the date of his or her hiring or re-hiring by the Company (or one of its Subsidiaries or affiliates) is less than the number of months in the Severance Period, then the Company, in its sole discretion, may require the recipient to repay to the Company (or its Subsidiary or affiliate) an amount equal to the aggregate amount of his or her severance pay under Section 4.1.1 plus any additional payment provided for under Section 4.1.2, multiplied by a fraction, the numerator of which is the number of months in the Severance Period minus the number of months (with any partial months prorated accordingly) between the person’s termination of employment and the date of his or her hiring or re-hiring, and the denominator of which is the number of months in the Severance Period.

4.7Notwithstanding anything in Section 4.1 or 4.3, any payments that are to be made in installments may be paid in a lump sum at any time during the period in which there are any remaining unpaid installments; provided, however, that this Section 4.6 shall be applicable only with respect to installment payments that are exempt from Code Section 409A by reason of the short-term deferral and/or separation pay exemptions provided for in Treasury Regulation Section 1.409A-1(b)(4) and (9).

ARTICLE 5ADMINISTRATION

5.1Plan Administrator. As defined in Section 3(16)(A) of ERISA, the Company shall be the Plan Administrator. The Administrator shall have the exclusive right, power, and authority to interpret, apply, administer and operate the Plan, in its sole and absolute discretion.

5.2Delegation of Duties. The Administrator, in its sole discretion, may delegate to any person or persons, severally or jointly, the responsibility for the preparation and filing of all disclosure material and reports which the Administrator is required to file by law. The Administrator, in its sole discretion, may designate any person or persons, severally or jointly (which designation shall be stated in writing and communicated to Participants), to serve and function as the Administrator with responsibility for the day to day administration and operation of the Plan.

5.3Rules, Regulations and Procedures. The Administrator, subject to the provisions of the Plan, may establish or adopt such rules, regulations and procedures as it deems necessary, in its sole discretion, to carry out the provisions of the Plan.

5.4Discretionary Actions. The Administrator shall have the power of full and final determination and decision as to all issues concerning eligibility and claims for benefits under the Plan and all matters involving the interpretation of the provisions of the Plan and determination of any and all questions ( whether of fact, disputed fact or otherwise) arising in connection with the administration of the Plan or any claim arising under the Plan, and such determinations and decisions with respect to any individual’s rights, claims or benefits under the Plan shall be entitled to the maximum deference permitted by law. Any determination or decision made, action taken or interpretation adopted by the Administrator pursuant to this Section shall be final, conclusive and binding. With respect to any decision that is delegated to

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the Company in its sole discretion under the Plan, any review of such decision that shall be undertaken in the capacity of the Administrator shall be implemented by a Company executive (or committee consisting of Company employees) who is (or are) not subject to the supervision of the Company representative originally exercising such discretion.

5.5Benefit Claims Procedure. In accordance with Section 503 of ERISA and the regulations of the Secretary of Labor prescribed thereunder:

5.5.1All claims for benefits under the Plan shall be filed in writing with the Administrator in accordance with such procedures as the Administrator shall establish.

5.5.2The Administrator shall, within ninety (90) days of submission of a claim for benefits under the Plan, provide adequate notice in writing to any claimant with a description of any material or information which is necessary in order for the claimant to perfect his or her claim and an explanation of why such information is necessary. If special circumstances require an extension of time for processing the claim, the Administrator shall furnish the claimant a written notice of such extension prior to the expiration of the ninety (90) day period. The extension notice shall indicate the reasons for the extension and the expected date for a final decision, which date shall not be more than one hundred eighty (180) days from the initial claim.

5.5.3The Administrator shall, upon written request by a claimant within sixty (60) days of receipt of the notice that his or her claim for benefits under the Plan has been denied, afford a reasonable opportunity to such claimant for a full and fair review by the Administrator of the decision denying the claim. The Administrator will attempt to make his or her decision on the claim review as soon as practicable, and in no event will the Administrator take more than one hundred twenty (120) days to send the claimant a written notice of its decision on the claim review. The decision of the Administrator is final and binding on all parties.

5.6Indemnification. The Administrator shall indemnify any individual who is a director, officer or employee of the Company, or his or her heirs and legal representatives, against all liability and reasonable expense, including counsel fees, amounts paid in settlement and amounts of judgments, fines or penalties, incurred or imposed upon him or her in connection with any claim, action, suit or proceeding, whether civil, criminal, administrative or investigative in connection with his or her duties with respect to the Plan, provided that such act or omission does not constitute gross negligence or willful misconduct.

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ARTICLE 6
MISCELLANEOUS

6.1Right to Amend or Terminate. The Company reserves the right, in its sole discretion, to modify, amend, suspend, discontinue or terminate the Plan, in whole or in part, at any time, prospectively or retroactively, and for any reason, with or without notice, as it deems appropriate, by action of the Administrator; provided, however, that no such modification, amendment, suspension, discontinuance or termination made during the period starting ninety (90) days prior to a Change in Control, and ending one (1) year after the Change in Control shall affect any right of any Participant to claim benefits under the Plan without the Participant’s consent; and provided further that the Company may amend the amount of separation benefits payable to Participants only with the approval of the Board or the Compensation Committee of the Board. Any modification, amendment, suspension, discontinuance or termination shall be effective as of the date determined by the Administrator. All modifications, amendments, suspensions, discontinuances or terminations of the Plan shall be in writing. Notwithstanding anything in this Section 6.1 to the contrary, no amendment to the Plan shall apply to the detriment of any Participant who has become eligible for benefits under the Plan by reason of a termination of such Participant’s employment prior to the date of such amendment, without such Participant’s consent.

6.2Benefits Payable from General Assets. Benefits payable hereunder shall be paid exclusively from the general assets of the Company that employed the Participant, and no person entitled to payment hereunder shall have any claim, right, security interest, or other interest in any fund, trust account, insurance contracts or other asset of the Company. The Company need not fund or otherwise provide for the benefits payable under this Plan; however, nothing in this Section 6.2 shall be interpreted as precluding the Company from funding or setting aside amounts in anticipation of paying such benefits. Any benefits payable to a Participant under this Plan shall represent an unsecured claim by such Participant against the general assets of the Company that employed such Participant. In no event shall benefits payable hereunder be the financial responsibility of any officer or shareholder of the Company or of any successor thereto who does not assume liabilities hereunder or of any related corporation which may be looked to for such payment.

6.3Assignment of Benefits. Benefits payable under the Plan shall not be subject to assignment, alienation, transfer, pledge, encumbrance, commutation or anticipation by a Participant. Any attempt to assign, alienate, transfer, pledge, encumber, commute or anticipate Plan benefits shall be void. In addition, no interest under the Plan shall be in any manner subject to levy, attachment or other legal process to enforce payments of any claim against a Participant, except to the extent required by law. Notwithstanding any provision of the Plan to the contrary, however, if a Participant who has been terminated by the Company other than for Cause or resigns from his or her employment with the Company for Good Reason, and is otherwise eligible for severance pay benefits under the Plan, dies before such severance pay benefits are paid out to the Participant, then any severance pay benefits that would have been payable to such Participant hereunder had he or she not died shall be paid to his or her estate, heirs or legal

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representatives and in such case all references to a Participant shall, where applicable, apply to such estate, heirs or legal representatives, as the case may be.

6.4No Contract for Continued Services. Neither the establishment of the Plan nor any action of the Company, the Administrator, or any fiduciary shall be held or construed as creating or constituting any contract for continued employment or services between the Company and a Participant or a contract of employment for a set term between the Company and any of its employees, and nothing herein contained shall give the Participant the right to be retained as an employee of the Company. The provisions of the Plan do not establish, nor should they be construed to create or constitute, a precedent or entitlement for another situation, or any contractual rights or obligations between the Company and any of its employees.

6.5Tax Matters. The Plan is structured so that all payments under the Plan are, to the maximum extent possible, exempt from Code Section 409A by reason of the short-term deferral rules set forth in Treasury Regulation Section 1.409A-1(b)(4) and/or the separation pay exemption set forth in Treasury Regulation Section 1.409A-1(b)(9), or are otherwise compliant in all regard with Code Section 409A and shall be interpreted consistent with that intent. Notwithstanding any other provision of this Plan or other compensation and benefit plans of the Company, any payments or benefits due under this Plan shall be paid, and this Plan shall be interpreted, in a manner that is intended to provide that any such payments or benefits shall not be subject to any tax or interest under Code Section 409A. Notwithstanding anything in this Plan to the contrary, if, at the time of a Participant’s termination of employment with the Company, such Participant is a “specified employee” (as such term is defined in Code Section 409A), and the deferral of the commencement of any payment otherwise payable hereunder as a result of such termination of employment is necessary in order to prevent any accelerated or additional tax under Code Section 409A, then the Company will defer the commencement of the payment of any such payments (without any reduction in such payments ultimately paid or provided to such Participant) until the date that is six months following such Participant’s termination of employment with the Company (or the earliest date as is permitted under Code Section 409A or such payment shall be restructured, to the extent possible, in a manner, as determined by the Administrator, that does not cause such an accelerated or additional tax. Each payment made under this Plan shall be designated as a “separate payment” within the meaning of Code Section 409A. The Administrator shall consult with the Participant in good faith regarding the implementation of the provisions of this Section; provided, that neither the Administrator nor the Company, or any of its employees or representatives, shall have any liability to the Participant with respect thereto or in the event that any payment benefit provided hereunder is subject to taxation under Code Section 409A. Notwithstanding the foregoing, the Company makes no representations or warranties regarding the tax treatment of any payments made to any Participant under the Plan and the Participant shall be liable for all income and wage taxes imposed on the Participant by reason of the Participant’s participation in the Plan. The Company shall be entitled to and shall in all events deduct and withhold from any payments made pursuant to the Plan all amounts required to be deducted or withheld for federal, state or local income or wage taxes, or otherwise required to be withheld by any applicable law.

-11-

6.6WARN Act. The Company is voluntarily offering this Plan to Participants. Any Severance Pay paid or provided under this Plan will serve to offset any notice, payments or benefits required under the WARN Act or any other applicable law or regulation, and vice versa, to the fullest extent allowed by applicable law.

6.7Unauthorized Payment. If any person receives any payment or benefit under the Plan that is not authorized by this Plan, the Company shall be entitled to reimbursement of such payment or benefit from any person to whom, or for whom, such payment or benefit was paid, and to exercise all rights and remedies available under applicable law to recover such reimbursement. In addition to reimbursement of such unauthorized payment or benefit, the Company shall be entitled to recover the reasonable attorneys’ fees and costs for any suit brought by the Company to recover such unauthorized payment or benefit. If an unauthorized payment or benefit was paid to any person or entity as a result of misconduct, fraud, misrepresentation or other illegal conduct by or on behalf of the payee, the Company, in addition to reimbursement of such unauthorized payment or benefit, shall be entitled to recover interest on such unauthorized payment or benefit at the highest rate allowable by law, from the date of payment until the date of recovery, plus reasonable attorneys’ fees and costs for any suit brought to recover such unauthorized payment or benefit. In addition, for purposes of clarity and avoidance of doubt, and not by way of limitation, in the event a Participant’s employment is terminated and payments or benefits were made under the Plan to such Participant, and facts later come to light that demonstrate to the Administrator’s satisfaction that such Participant had engaged in activity or conduct that would have constituted Cause and resulted in such Participant being terminated for Cause, any Plan payments made to such Participant shall constitute unauthorized payments subject to terms and conditions of this Section 6.7.

6.8Successor. This Plan and the rights and obligations of the Company hereunder shall inure to the benefit of and be binding upon any successor to the Company. The term “successor” means, with respect to the Company, any corporation or other business entity that, by merger, consolidation, purchase of assets or otherwise acquires all or a material part of the assets of the Company. This Severance Plan shall not be terminated by the voluntary or involuntary dissolution of the Company.

6.9Severable. Each provision of this Plan is intended to be severable and the invalidity, illegality or unenforceability of any portion of this Plan shall not affect the validity, legality, or enforceability of the remainder.

6.10IntegrationClause. This Plan supersedes any and all prior severance plans, programs, policies, arrangements or practices of the Company (whether written or unwritten), including, without limitation, any severance plan, program, policy, arrangement or practice acquired or assumed by the Company in connection with the Company’s acquisition of another employer, unless the Company, in its sole discretion, determines otherwise, which determination must be stated in writing by the Company. Notwithstanding the preceding sentence, and except as otherwise expressly set forth in Section 4.2, the Plan does not supersede the severance, separation, retention or change of control provisions of any written individual employment contract or written agreement between a Participant and the Company.

-12-

6.11Governing Law. The Plan shall be governed by and construed as administered and enforced in accordance with ERISA and, where appropriate and not otherwise preempted, this Plan shall be governed by and construed and applied in accordance with the laws of the State of Maine (without reference to rules relating to conflicts of laws).

6.12Definition of Words. Feminine or neuter pronouns shall be substituted for those of the masculine form, the plural shall be substituted for the singular, and vice‑versa, in any place or places herein where the context may require such substitution or substitutions.

IN WITNESS WHEREOF the Plan has been signed and sealed for and in behalf of the Company by its duly authorized representative, this 5th day of March, 2018.

_____________________________

By:/S/ Melanie Tinto

Authorized Signatory

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EX-21.1

Exhibit 21.1

Legal Entity Name	Jurisdiction of Incorporation
WEX Bank	Utah
WEX Canada Ltd.	New Brunswick (Canada)
WEX Finance Inc.	Utah
Wright Express Fueling Solutions, Inc.	Delaware
WEX Europe (Netherlands) BV	The Netherlands
WEX New Zealand	New Zealand
Wright Express International Holdings LLC	Delaware
Wright Express UK Limited	England and Wales (United Kingdom)
Wright Express Holdings 2 LLC	Delaware
Wright Express Holdings 3 LLC	Delaware
Wright Express Holdings 4 LP	England and Wales (United Kingdom)
Wright Express International Holdings Ltd	England and Wales (United Kingdom)
WEX Bermuda 5 Limited	Bermuda
WEX Europe Services Ltd	England and Wales (United Kingdom)
UNIK S.A.	Brazil
WEX Europe Holdings Limited	Guernsey
WEX Europe Limited	England and Wales (United Kingdom)
WEX Europe Solutions Limited	England and Wales (United Kingdom)
WEX Europe Services Holdings Limited	England and Wales (United Kingdom)
WEX Australia Holdings Pty Ltd	Australia
WEX Card Holdings Australia Pty Ltd	Australia
WEX Australia Pty Ltd	Australia
WEX Fuel Cards Australia Ltd	Australia
WEX Europe Services SARL	Luxembourg
WEX Prepaid Cards Australia Pty Ltd	Australia
WEX Card Australia Pty Ltd	Australia
WEX Europe Services SAS	France
WEX Conso Pty Ltd	Australia
FleetOne Holdings, LLC	Delaware
Transplatinum Service, LLC	Tennessee
FleetOne Factoring, LLC	Tennessee
FleetOne, L.L.C.	Delaware
FleetOne Receivables, LLC	Delaware
WEX Asia Pte	Singapore
WEX Europe Fleet Services Limited	Ireland
WEX Europe Services SRL	Italy
WEX Europe Services B.V.	Netherlands
WEX Europe Services BVBA	Belgium
WEX Europe Services GmbH	Germany

WEX Europe Services AS	Norway
WEX Europe Services (UK) Ltd	England and Wales (United Kingdom)
WEX Canada Services Inc.	Canada
Retail Petroleum Services Limited	United Kingdom
Societe D'Exploitation Et De Developement D' Operations Commerciales	France
EB Holdings Corp.	Delaware
EB Holdings Corp II	Delaware
WEX Health Inc.	Delaware
Competitive Health, Inc.	California
First Access, Inc.	California
WEX Europe Svcs Telesales GmBH	Germany
Southern Cross WEX 2014 - 1 Trust	Australia
OTR Holdings LLC	Delaware
OTR Topco LLC	Delaware
Electronic Funds Source LLC	Utah
Truckers B2B, LLC	Delaware
EFS Payments LLC	Delaware
Electronic Funds Sources Canada Inc.	Canada
TCH Canada Inc.	Utah
OTR Blocker LLC	Delaware
WEX Europe UK Limited	United Kingdom
Stichting WEX Europe NL	Netherlands
WEXPAYMENTS S.A.U	Argentina
Pavestone Capital LLC	Idaho
PO Holdings, LLC	Delaware
Discovery Benefits, LLC	North Dakota
Noventis Inc.	Delaware
Payment Connection Inc.	Delaware

EX-23.1

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-167016 and 333-122934 on Form S-8 of our reports dated March 18, 2019, relating to the financial statements of WEX Inc., and the effectiveness of WEX Inc.'s internal control over financial reporting (which report expresses an adverse opinion on the effectiveness of the Company’s internal control over financial reporting because of material weaknesses), appearing in this Annual Report on Form 10-K of WEX Inc. for the year ended December 31, 2018.

/s/ Deloitte & Touche LLP

Boston, Massachusetts

March 18, 2019

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Melissa D. Smith, certify that:

1. I have reviewed this annual report on Form 10-K of WEX Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: March 18, 2019

/s/ Melissa D. Smith

Melissa D. Smith

President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Roberto Simon, certify that:

1. I have reviewed this annual report on Form 10-K of WEX Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: March 18, 2019

/s/ Roberto Simon

Roberto Simon

Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the annual report of WEX Inc. (the “Company”) on Form 10-K for the period ending December 31, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Melissa D. Smith, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Melissa D. Smith

Melissa D. Smith

President and Chief Executive Officer

March 18, 2019

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the annual report of WEX Inc. (the “Company”) on Form 10-K for the period ending December 31, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Roberto Simon, Senior Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Roberto Simon

Roberto Simon

Chief Financial Officer

(Principal accounting and principal financial officer)

March 18, 2019

XML

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2018	Mar. 12, 2019	Jun. 30, 2018
Document And Entity Information [Abstract]
Entity Registrant Name	WEX Inc.
Trading Symbol	WEX
Entity Central Index Key	0001309108
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus (Q1,Q2,Q3,FY)	FY
Amendment Flag	false
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		43,135,385
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 8,124,602,298

XML

CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended							12 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues
Payment processing revenue								$ 996,763
Account servicing revenue								308,096	$ 276,570	$ 211,012
Finance fee revenue									188,792	132,968
Other revenue								251,925	214,049	147,889
Total revenues	$ 386,617	$ 370,798	$ 354,028	$ 331,579	$ 320,677	$ 303,868	$ 292,453	1,492,639	1,248,577	1,012,488
Cost of services
Processing costs								547,929	514,285	458,807
Service fees								53,655	72,957	79,367
Provision for credit losses								66,482	64,218	33,458
Operating interest								38,407	24,993	12,386
Depreciation and amortization								79,935	74,061	62,879
Total cost of services								547,929	514,285	458,807
General and administrative								209,319	184,339	185,557
Sales and marketing								229,234	163,654	130,827
Depreciation and amortization								119,870	129,663	78,772
Impairment charges and asset write-offs								5,649	44,171	0
Gain on divestiture								0	(20,958)	0
Operating income	$ 102,564	$ 100,424	$ 83,859	$ 73,456	$ 50,819	$ 52,447	$ 56,701	380,638	233,423	158,525
Financing interest expense								(105,023)	(107,067)	(113,418)
Net foreign currency (loss) gain								(38,800)	31,487	(9,233)
Net realized and unrealized gains on fuel price derivatives								0	0	711
Non-cash adjustments related to tax receivable agreement								(775)	15,259	(563)
Net unrealized gain on financial instruments								2,579	1,314	12,908
Income before income taxes								238,619	174,416	48,930
Income taxes								68,843	15,450	28,592
Net income								169,776	158,966	20,338
Less: Net income (loss) from non-controlling interest								1,481	(1,096)	(3,161)
Net income attributable to shareholders								$ 168,295	$ 160,062	$ 23,499
Net income attributable to WEX Inc. per share:
Basic (in dollars per share)	$ 1.31	$ 0.89	$ 1.21	$ 2.03	$ 0.61	$ 0.46	$ 0.63	$ 3.90	$ 3.72	$ 0.58
Diluted (in dollars per share)	$ 1.30	$ 0.88	$ 1.20	$ 2.02	$ 0.61	$ 0.46	$ 0.62	$ 3.86	$ 3.71	$ 0.57
Weighted average common shares outstanding:
Basic (in shares)								43,156	42,977	40,809
Diluted (in shares)								43,574	43,105	40,914
Payment Processing Revenue
Revenues
Payment processing revenue								$ 723,991	$ 569,166	$ 520,619
Cost of services
Processing costs								309,450	278,056	270,717
Total cost of services								$ 309,450	$ 278,056	$ 270,717

XML

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 169,776	$ 158,966	$ 20,338
Changes in investment securities, net of tax benefit of $3 in 2017 and $144 in 2016	0	(5)	(251)
Foreign currency translation	(28,535)	34,295	(28,411)
Comprehensive income (loss)	141,241	193,256	(8,324)
Less: Comprehensive income (loss) attributable to non-controlling interest	1,007	(1,554)	(1,778)
Comprehensive income (loss) attributable to WEX Inc.	$ 140,234	$ 194,810	$ (6,546)

XML

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Changes in available-for-sale securities, tax benefit	$ 3	$ 144

XML

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 541,498	$ 503,519
Restricted cash	13,533	18,866
Accounts receivable (net of allowances of $46,948 in 2018 and $33,387 in 2017)	2,584,203	2,455,907
Securitized accounts receivable, restricted	109,871	150,235
Prepaid expenses and other current assets	149,021	77,532
Total current assets	3,398,126	3,206,059
Property, equipment and capitalized software (net of accumulated depreciation of $307,750 in 2018 and $264,928 in 2017)	187,868	163,908
Goodwill	1,832,129	1,876,132
Other intangible assets (net of accumulated amortization of $509,055 in 2018 and $392,827 in 2017)	1,034,194	1,154,047
Investment securities	24,406	23,358
Deferred income taxes, net	9,643	7,721
Other assets	284,229	257,641
Total assets	6,770,595	6,688,866
Liabilities and Stockholders’ Equity
Accounts payable	814,742	843,180
Accrued expenses	325,801	315,346
Short-term deposits	927,444	986,989
Short-term debt, net	216,517	397,218
Other current liabilities	27,067	33,123
Total current liabilities	2,311,571	2,575,856
Long-term debt, net	2,133,923	2,027,752
Long-term deposits	345,231	306,865
Deferred income taxes, net	151,685	116,248
Other liabilities	32,261	32,045
Total liabilities	4,974,671	5,058,766
Commitments and contingencies
Stockholders’ Equity
Common stock $0.01 par value; 175,000 shares authorized; 47,557 issued in 2018 and 47,352 in 2017; 43,129 shares outstanding in 2018 and 43,022 in 2017	475	473
Additional paid-in capital	593,262	569,319
Retained earnings	1,481,593	1,312,660
Accumulated other comprehensive loss	(117,291)	(89,230)
Treasury stock at cost; 4,428 shares in 2018 and 2017	(172,342)	(172,342)
Total WEX Inc. stockholders’ equity	1,785,697	1,620,880
Non-controlling interest	10,227	9,220
Total stockholders’ equity	1,795,924	1,630,100
Total liabilities and stockholders’ equity	$ 6,770,595	$ 6,688,866

XML

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Accounts receivable, reserve for credit losses	$ 46,948	$ 33,387
Accumulated depreciation	307,750	264,928
Accumulated amortization	$ 509,055	$ 392,827
Common stock, par value (in dollars per share)	$ 0.1	$ 0.1
Common stock, shares authorized (in shares)	175,000,000	175,000,000
Common stock, shares issued (in shares)	47,557,000	47,352,000
Common stock, shares outstanding (in shares)	43,129,000	43,022,000
Treasury stock, shares (in shares)	4,428,000	4,428,000

XML

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands		Total	Common Stock Issued	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Treasury Stock	Retained Earnings	Non-Controlling Interest
Beginning Balances (in shares) at Dec. 31, 2015			43,079
Beginning balance at Dec. 31, 2015		$ 1,050,518	$ 431	$ 174,972	$ (93,933)	$ (172,342)	$ 1,128,953	$ 12,437
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued (in shares)			82
Stock issued		300	$ 1	299
Share repurchases for tax withholdings		(2,200)		(2,200)
Stock-based compensation expense		19,742		19,742
Tax deficiency from stock options and restricted stock units		(99)		(99)
Stock issued for July 1, 2016 purchase of EFS (in shares)			4,012
Stock issued for July 1, 2016 purchase of EFS		354,953	$ 40	354,913
Changes in investment securities, net of tax benefit		(251)			(251)
Foreign currency translation		(28,411)			(29,794)			1,383
Net income (loss)		20,338					23,499	(3,161)
Ending Balance (in shares) at Dec. 31, 2016			47,173
Ending balance at Dec. 31, 2016		1,414,890	$ 472	547,627	(123,978)	(172,342)	1,152,452	10,659
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect adjustment	[1]	261					261
Beginning balance, adjusted		1,415,151	$ 472	547,627	(123,978)	(172,342)	1,152,713	10,659
Stock issued (in shares)			178
Stock issued		733	$ 1	732
Share repurchases for tax withholdings		(9,527)		(9,527)
Other		0					(115)	115
Stock-based compensation expense (in shares)			1
Stock-based compensation expense		30,487		30,487
Changes in investment securities, net of tax benefit		(5)			(5)
Foreign currency translation		34,295			34,753			(458)
Net income (loss)		158,966					160,062	(1,096)
Ending Balance (in shares) at Dec. 31, 2017			47,352
Ending balance at Dec. 31, 2017		1,630,100	$ 473	569,319	(89,230)	(172,342)	1,312,660	9,220
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect adjustment	[2]	638					638
Beginning balance, adjusted		1,630,738	$ 473	569,319	(89,230)	(172,342)	1,313,298	9,220
Stock issued (in shares)			205
Stock issued		2,430	$ 2	2,428
Share repurchases for tax withholdings		(12,372)		(12,372)
Stock-based compensation expense (in shares)			0
Stock-based compensation expense		33,887		33,887
Foreign currency translation		(28,535)			(28,061)			(474)
Net income (loss)		169,776					168,295	1,481
Ending Balance (in shares) at Dec. 31, 2018			47,557
Ending balance at Dec. 31, 2018		$ 1,795,924	$ 475	$ 593,262	$ (117,291)	$ (172,342)	$ 1,481,593	$ 10,227

[1] Includes the impact of modified retrospective transition as part of the Company’s adoption of ASU 2016–09 to recognize previously disallowed excess tax benefits that increased a net operating loss.

[2] Includes the impact of the Company’s modified retrospective adoption as part of Topic 606.

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Stockholders' Equity [Abstract]
Changes in available-for-sale securities, tax effect	$ 0	$ (5)	$ (251)

XML

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities
Net income	$ 169,776	$ 158,966	$ 20,338
Adjustments to reconcile net income to net cash provided by operating activities:
Net unrealized loss (gain)	21,924	12,565	(21,271)
Stock-based compensation	33,887	30,487	19,742
Depreciation and amortization	199,805	203,724	141,651
Ticking fees expensed	0	0	30,045
Debt restructuring and debt issuance cost amortization	9,674	7,957	12,673
Gain on divestiture	0	(20,958)	0
Provision for deferred taxes	31,334	(4,234)	19,499
Provision for credit losses	66,482	64,218	33,458
Impairment charges and asset write-offs	5,649	44,171	0
Non-cash adjustments related to tax receivable agreement	775	(15,259)	0
Changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable and securitized accounts receivable	(201,637)	(540,470)	(389,157)
Prepaid expenses and other current and other long-term assets	68,014	(3,043)	(59,255)
Accounts payable	(3,588)	195,773	66,184
Accrued expenses	8,654	(2,378)	1,669
Income taxes	(2,107)	9,484	(14,614)
Other current and other long-term liabilities	(8,413)	(5,576)	(2,148)
Net cash provided by (used for) operating activities	400,229	135,427	(141,186)
Cash flows from investing activities
Purchases of property, equipment and capitalized software	(87,152)	(79,276)	(61,799)
Purchase of equity investment	(2,771)	(4,553)	0
Purchases of investment securities	(1,768)	(474)	(5,853)
Maturities of investment securities	266	631	495
Acquisitions and investment, net of cash	(162,750)	(114,282)	(1,093,282)
Proceeds from divestiture	0	29,900	0
Net cash used for investing activities	(254,175)	(168,054)	(1,160,439)
Cash flows from financing activities
Excess tax benefits from equity instrument share-based payment arrangements	0	0	597
Repurchase of share-based awards to satisfy tax withholdings	(12,372)	(9,527)	(2,200)
Proceeds from stock option exercises	2,430	733	300
Net change in deposits	(20,360)	173,052	248,926
Net activity on other debt	(62,290)	68,525	62,474
Borrowings on revolving credit facility	1,570,983	4,367,168	3,505,732
Repayments on revolving credit facility	(1,707,478)	(4,239,241)	(3,707,248)
Borrowings on term loans	178,000	0	1,643,000
Repayments on term loans	(35,791)	(34,750)	(476,126)
Debt issuance costs	(5,841)	(985)	(40,868)
Net change in securitized debt	(10,009)	34,410	3,665
Ticking fees paid	0	0	(22,171)
Net cash (used for) provided by financing activities	(102,728)	359,385	1,216,081
Effect of exchange rates on cash, cash equivalents and restricted cash	(10,680)	(17,715)	2,791
Net change in cash, cash equivalents and restricted cash	32,646	309,043	(82,753)
Cash, cash equivalents and restricted cash, beginning of year	522,385	213,342	296,095
Cash, cash equivalents and restricted cash, end of year	555,031	522,385	213,342
Supplemental cash flow information
Interest paid	141,476	128,888	116,272
Income taxes paid	39,225	6,679	23,946
Supplemental disclosure of non-cash investing and financing activities
Capital expenditures incurred but not paid	8,569	4,596	10,900
Issuance of common stock in a business combination	0	0	354,953
Cash, cash equivalents and restricted cash	$ 522,385	$ 213,342	$ 296,095

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Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

1. Summary of Significant Accounting Policies

Business Description

WEX Inc. (“Company”, “we” or “our”) is a provider of corporate card payment solutions. The Company provides products and services that meet the needs of businesses in various geographic regions including North and South America, Asia Pacific and Europe. The Company’s Fleet Solutions, Travel and Corporate Solutions, and Health and Employee Benefit Solutions segments provide their customers with security and control for complex payments across a wide spectrum of business sectors. The Company markets its products and services directly, as well as through strategic relationships which include major oil companies, fuel retailers, vehicle maintenance providers, online travel agencies and health partners.

Basis of Presentation

The accompanying consolidated financial statements for the years ended December 31, 2018, 2017 and 2016, include the accounts of the Company and its wholly and majority-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.

The Company rounds amounts in the consolidated financial statements to thousands within tables and millions within text (unless otherwise specified), and calculates all percentages and per-share data from underlying whole-dollar amounts. Thus, certain amounts may not foot, crossfoot, or recalculate based on reported numbers due to rounding.

Revision of Prior Period Financial Statements for Correction of Immaterial Errors

During the Company’s 2018 year-end close process, management identified immaterial errors in the financial statements of our Brazilian subsidiary that were consolidated into certain of our previously filed financial statements. These errors, which began to be made before 2015, are primarily related to accounts receivable and accounts payable in Brazil in our Fleet Solutions segment. Our financial statements have been revised to correct these errors. Additionally, because we are revising our financial statements to correct these errors, we determined to also revise the financial statements to correct other immaterial errors impacting prior years that were not previously recorded. Collectively, hereinafter these revisions to correct are referred to as the “Revised” financial statements and “Revision”. Management believes that the effects of this Revision are not material to our previously issued consolidated financial statements.

    The effects of the Revision on our consolidated statements of income were as follows:

	Year Ended December 31, 2017
(In thousands, except per share data)	As Previously Reported		Brazil Adjustments			Other Immaterial Adjustments			As Revised
Total revenues	$	1,250,548	$	(3,325	)	$	1,354		$	1,248,577
Processing costs	$	279,497	$	(1,441	)	$	—		$	278,056
Provision for credit losses	$	61,148	$	3,070		$	—		$	64,218
General and administrative	$	182,092	$	—		$	2,247		$	184,339
Net foreign currency gain	$	29,919	$	—		$	1,568		$	31,487
Income taxes	$	19,525	$	(2,023	)	$	(2,052	)	$	15,450
Net income	$	159,170	$	(2,931	)	$	2,727		$	158,966
Net income attributable to shareholders	$	160,266	$	(2,931	)	$	2,727		$	160,062
Net income attributable to WEX Inc. per share
Basic	$	3.73	$	(0.07	)	$	0.06		$	3.72
Diluted	$	3.72	$	(0.07	)	$	0.06		$	3.71

	Year Ended December 31, 2016
(In thousands, except per share data)	As Previously Reported			Brazil Adjustments			Other Immaterial Adjustments			As Revised
Total revenues	$	1,018,460		$	—		$	(5,972	)	$	1,012,488
Processing costs	$	240,196		$	30,521		$	—		$	270,717
Provision for credit losses	$	33,348		$	110		$	—		$	33,458
Net foreign currency loss	$	(7,665	)	$	—		$	(1,568	)	$	(9,233	)
Income taxes	$	29,625		$	—		$	(1,033	)	$	28,592
Net income	$	57,476		$	(30,631	)	$	(6,507	)	$	20,338
Net income attributable to shareholders	$	60,637		$	(30,631	)	$	(6,507	)	$	23,499
Net income attributable to WEX Inc. per share
Basic	$	1.49		$	(0.75	)	$	(0.16	)	$	0.58
Diluted	$	1.48		$	(0.75	)	$	(0.16	)	$	0.57

The effects of the Revision on our consolidated balance sheets were as follows:

	December 31, 2017
(In thousands)	As Previously Reported			Brazil Adjustments			Other Immaterial Adjustments			As Revised
Assets
Cash and cash equivalents	$	508,072		$	—		$	(4,553	)	$	503,519
Accounts receivable, net of allowances	$	2,517,980		$	(56,393	)	$	(5,680	)	$	2,455,907
Prepaid expenses and other current assets	$	69,413		$	—		$	8,119		$	77,532
Deferred income taxes, net	$	7,752		$	848		$	(879	)	$	7,721
Other assets	$	253,088		$	—		$	4,553		$	257,641
Liabilities
Accounts payable	$	811,362		$	29,570		$	2,248		$	843,180
Other current liabilities	$	24,795		$	(1,629	)	$	9,957		$	33,123
Deferred income taxes, net	$	119,283		$	455		$	(3,490	)	$	116,248
Other liabilities	$	32,683		$	—		$	(638	)	$	32,045
Stockholders' equity
Retained earnings	$	1,404,683		$	(85,506	)	$	(6,517	)	$	1,312,660
Accumulated other comprehensive loss	$	(90,795	)	$	1,565		$	—		$	(89,230	)

The effects of the Revision on our consolidated statements of cash flows were as follows:

	Year Ended December 31, 2017
(In thousands)	As Previously Reported			Brazil Adjustments	Other Immaterial Adjustments		As Revised
Net cash provided by operating activities	$	129,403		—	6,024		$	135,427
Net cash used for investing activities	$	(163,501	)	—	(4,553	)	$	(168,054	)
Effect of exchange rates on cash, cash equivalents and restricted cash	$	(11,691	)	—	(6,024	)	$	(17,715	)
Cash, cash equivalents and restricted cash, end of year	$	526,938		—	(4,553	)	$	522,385

	Year Ended December 31, 2016
(In thousands)	As Previously Reported			Brazil Adjustments			Other Immaterial Adjustments			As Revised
Net cash used for operating activities	$	(146,656	)	$	1,831		$	3,639		$	(141,186	)
Effect of exchange rates on cash, cash equivalents and restricted cash	$	6,430		$	—		$	(3,639	)	$	2,791
Cash, cash equivalents and restricted cash, beginning of year	$	297,926		$	(1,831	)	$	—		$	296,095

The following table presents the effects of the Revision on our retained earnings and accumulated other comprehensive loss as of January 1, 2016:

	January 1, 2016
(In thousands)	As Previously Reported			Brazil Adjustments			Other Immaterial Adjustments			As Revised
Retained earnings	$	1,183,634		$	(51,943	)	$	(2,738	)	$	1,128,953
Accumulated other comprehensive loss	$	(103,451	)	$	9,518		$	—		$	(93,933	)

The following table presents the increase (decrease) of the effects of the Revision on Note 26 - Quarterly Financial Results (Unaudited):

(Unaudited)	Three Months Ended
(In thousands, except per share data)	March 31			June 30			September 30			December 31
2018
Total revenues	$	(801	)	$	(78	)	$	3,927		$	(43	)
Operating income	$	5,497		$	(2,487	)	$	1,876		$	574
Net income attributable to shareholders	$	3,337		$	(874	)	$	(678	)	$	3,972
Earnings per share:
Basic	$	0.08		$	(0.02	)	$	(0.02	)	$	0.09
Diluted	$	0.08		$	(0.02	)	$	(0.01	)	$	0.09
2017
Total revenues	$	1,096		$	(16	)	$	(3,325	)	$	274
Operating income	$	(4,051	)	$	4,866		$	(12,904	)	$	6,242
Net income attributable to shareholders	$	(2,522	)	$	2,680		$	(7,739	)	$	7,377
Earnings per share:
Basic	$	(0.06	)	$	0.06		$	(0.18	)	$	0.17
Diluted	$	(0.06	)	$	0.06		$	(0.18	)	$	0.17

Other Reclassification Changes to Prior Year Financial Statement Presentation

Effective January 1, 2018, the Company modified the presentation of the balance sheets and statements of income and changed how it allocates certain costs to its segments. These changes enhance the information reported to the users of our financial statements. Prior period amounts have been recast to conform with this presentation.

The Company now classifies assets and liabilities as current and non-current within our consolidated balance sheets according to the normal twelve month operating cycle of our business. As a result of this change, total assets and total liabilities have increased by $3.7 million compared to what was reported within our Annual Report on Form 10–K for the year ended December 31, 2017 due to a gross-up of interest rate swap arrangements to reflect their corresponding short and long-term portions. See Note 18, Fair Value, for more information on the fair value of our interest rate swap arrangements.

Additionally, the Company has modified the presentation of certain line items in the consolidated statements of income. Under the modified presentation, costs of services are segregated from other operating expenses. Operating expenses have been reclassified into functional categories in order to provide additional detail into the underlying drivers of changes in operating expenses and align presentation with industry practice. The revised presentation did not result in a change to previously reported revenues, operating income, income before income taxes or net income.

Effective with the change in financial statement presentation noted above, the Company now reports expenses in the categories noted below. No changes have been made to non-operating expenses.

Cost of Services

• Processing costs - The Company’s processing costs consist of expenses related to processing transactions, servicing customers and merchants and cost of goods sold related to hardware and other product sales.

• Service fees - The Company incurs costs from third-party networks utilized to deliver payment solutions. Additionally, other third-parties are utilized in performing services directly related to generating revenue. With the adoption of Topic 606, effective January 1, 2018 fees paid to third-party networks are no longer recorded as service fees and are now prospectively presented as a reduction of revenues.

• Provision for credit losses - Changes in the reserve for credit loss are the result of changes in management’s estimate of the losses in the Company’s outstanding portfolio of receivables, including losses from fraud.

• Operating interest - The Company incurs interest expense on the operating debt obtained to provide liquidity for its short-term receivables.

• Depreciation and amortization - The Company has identified those tangible and intangible assets directly associated with providing a service that generates revenue and records the depreciation and amortization associated with those assets under this category. Such assets include processing platforms and related infrastructure, acquired developed technology intangible assets and other similar asset types.

Other Operating Expenses

• General and administrative - General and administrative includes compensation and related expenses for executive, finance and accounting, other information technology, human resources, legal and other corporate functions. Also included are corporate facilities expenses, certain third-party professional service fees and other corporate expenses.

• Sales and marketing - The Company’s sales and marketing expenses relate primarily to compensation, benefits, sales commissions and related expenses for sales, marketing and other related activities. With the adoption of Topic 606, effective January 1, 2018 certain payments to partners are now prospectively classified as sales and marketing expenses .

• Depreciation and amortization - The depreciation and amortization associated with tangible and intangible assets that are not considered to be directly associated with providing a service that generates revenue are recorded as other operating expenses. Such assets include corporate facilities and information technology assets and acquired intangible assets other than those included in cost of services.

Use of Estimates and Assumptions

The Company prepares its consolidated financial statements in conformity with GAAP and with the Rules and Regulations of the SEC, specifically Regulation S–X and the instructions to Form 10–K. These principles require management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosures of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenue and expenses during the period. Actual results could differ from those estimates and those differences may be material.

Cash and Cash Equivalents

Highly liquid investments with remaining maturities at the time of purchase of three months or less (that are readily convertible to cash) are considered to be cash equivalents and are stated at cost, which approximates fair value. Cash and cash equivalents include amounts held in Eurodollar time deposits and money market funds, which are unsecured short-term investments entered into with financial institutions.

Restricted Cash

Restricted cash represents funds collected from individuals or employers on behalf of our customers that are to be remitted to third parties or funds required to be maintained on hand under certain vendor agreements. This restricted cash, which is not available to fund the Company’s operations, totaled $13.5 million and $18.9 million as of December 31, 2018 and 2017, respectively. We maintain an offsetting liability against restricted cash collected and remitted on behalf of our customers.

Accounts Receivable, Net of Allowances

Accounts receivable, net of allowances consist of amounts billed and due from third parties. We often extend short-term credit to cardholders and pay the merchant for the purchase price, less the fees we retain and record as revenue. We subsequently collect the total purchase price from the cardholder.

The amounts due are stated at their net realizable value. The receivables portfolio consists of a large group of homogeneous smaller balances across a wide range of industries, which are collectively evaluated for impairment. The allowance for credit losses reflects management’s estimate of uncollectable balances resulting from credit and fraud losses and is based on the determination of the amount of expected credit losses inherent in the accounts receivable as of the reporting date. Management reviews delinquency reports, historical collection rates, changes in customer payment patterns, economic trends, geography and other information in order to make judgments as to probable credit losses. Management also uses historical charge-off experience to determine the amount of losses inherent in accounts receivable at the reporting date. Assumptions regarding probable credit losses are reviewed periodically and may be impacted by actual performance of accounts receivable and changes in any of the factors discussed above. The balance also includes a reserve for waived finance fees, which is used to maintain customer goodwill and recorded against the late fee revenue recognized.

Investment Securities

As a result of adopting ASU 2016–01, effective January 1, 2018, changes in the fair value of investment securities are included in net unrealized gain on financial instruments within our consolidated statements of income. Prior to adoption, unrealized gains and losses, net of tax, were reported on the consolidated balance sheets in accumulated other comprehensive loss. Realized gains and losses and declines in fair value determined to be other-than-temporary are included in non-operating expenses. The cost basis of securities is based on the specific identification method. Interest and dividends earned on investment securities are included in other revenue. Investment securities held by the Company were purchased and are held by WEX Bank primarily in order to meet the requirements of the Community Reinvestment Act.

Derivatives

From time to time, the Company utilizes derivative instruments as part of its overall strategy to manage its exposure to fluctuations in fuel prices and to reduce the impact of interest and foreign currency exchange rate volatility. The Company’s derivative instruments are recorded at fair value on the consolidated balance sheets. The Company’s derivative instruments have not been designated as hedges; therefore, both realized and unrealized gains and losses are recognized in earnings. For the purposes of cash flow presentation, realized and unrealized gains or losses are included within cash flows from operating activities.

Property and Equipment

Property and equipment are stated at cost, net of accumulated depreciation. Replacements, renewals and improvements are capitalized and costs for repair and maintenance are expensed as incurred. Depreciation is primarily computed using the straight-line method over the estimated useful lives shown below.

Below are the estimated useful lives for assets in service during 2018:

	Estimated Useful Lives
Furniture, fixtures and equipment	3 to 5 years
Internal-use computer software	1.5 to 7 years
Computer software	3 years

Leasehold improvements are depreciated using the straight-line method over the lesser of the remaining lease term or the useful life of the asset.

Capitalized Software

The Company develops software that is used to provide processing and information management services to customers. A significant portion of the Company’s capital expenditures is devoted to the development of such internal-use computer software. Costs incurred during the preliminary project stage are expensed as incurred. Software development costs are capitalized during the application development stage. Capitalization begins when the preliminary project stage is complete, as well as when management authorizes and commits to the funding of the project. Capitalization of costs ceases when the software is ready for its intended use. Costs related to maintenance of internal-use software are expensed as incurred. Software development costs are amortized using the straight-line method over the estimated useful life of the software.

Below are the amounts of internal-use software capitalized and amortized:

	Year ended December 31,
(in thousands)	2018		2017		2016
Amounts capitalized for internal-use computer software (including work-in-process)	$	46,382	$	50,682	$	55,379
Amounts expensed for amortization of internal-use computer software	$	38,632	$	32,582	$	27,581

Acquisitions

For acquisitions that meet the definition of a business combination, the Company applies the acquisition method of accounting where assets acquired and liabilities assumed are recorded at fair value at the date of each acquisition. Acquiree results of operations are included in consolidated results of the Company from the date of the respective acquisition. Any excess of the purchase price paid by the Company over the amounts recognized for assets acquired and liabilities assumed is recorded as goodwill. The Company continues to evaluate acquisitions for a period not to exceed one year after the applicable acquisition date of each transaction to determine whether any additional adjustments are needed to the allocation of the purchase price paid for the assets acquired and liabilities assumed.

All other acquisitions are accounted for as asset acquisitions and the purchase price is allocated to the net assets acquired with no recognition of goodwill. Following the acquisition date, the purchase price is not subsequently adjusted.

The fair value of assets acquired and liabilities assumed is typically determined using a discounted cash flow valuation method, though the Company utilizes alternative valuation methods when deemed appropriate. Significant acquisition valuation assumptions typically include estimated asset useful lives, timing and amount of future cash flows, applicable discount rates and customer attrition rates.

Goodwill and Other Intangible Assets

The Company classifies intangible assets in the following three categories: (1) intangible assets with definite lives subject to amortization, (2) intangible assets with indefinite lives not subject to amortization and (3) goodwill. The Company tests intangible assets with definite lives for impairment if conditions exist that indicate the carrying value may not be recoverable. Such conditions may include a reduction in operating cash flow or a dramatic change in the manner in which the asset is intended to be used. The Company records an impairment charge when the carrying value of the definite-lived intangible asset is not recoverable from the undiscounted cash flows generated from the use of the asset.

Intangible assets with indefinite lives and goodwill are not amortized. The Company tests these intangible assets and goodwill for impairment at least annually or more frequently if facts or circumstances indicate that such intangible assets or goodwill might be impaired. All goodwill and intangible assets are assigned to reporting units, which are one level below the Company’s operating segments. The Company performs impairment tests at the reporting unit level. Such impairment tests include comparing the fair value of the respective reporting unit with its carrying value, including goodwill. The Company uses both discounted cash flow analyses and comparable company pricing multiples to determine the fair value of our reporting units. Such analyses are corroborated using market analytics. Certain assumptions are used in determining the fair value, including assumptions about future cash flows and terminal values. When appropriate, the Company considers the assumptions that it believes hypothetical marketplace participants would use in estimating future cash flows. In addition, an appropriate discount rate is used, based on the Company’s cost of capital or reporting unit-specific economic factors. When the fair value is less than the carrying value of the intangible assets or the reporting unit, the Company records an impairment charge to reduce the carrying value of the assets to the reporting unit’s implied fair value.

Effective October 1, 2018, the Company adopted ASU 2017–04, which simplified the subsequent measurement of goodwill, eliminating Step 2 from the goodwill impairment test (See Note 2, Recent Accounting Pronouncements, for further information regarding ASU 2017–04). Following adoption, the Company performs its annual goodwill impairment tests by comparing the fair value of a reporting unit with its carrying amount and, if necessary, recognizes an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. The loss recognized cannot exceed the total amount of goodwill allocated to that reporting unit. The Company’s annual goodwill impairment test performed as of October 1, 2018 identified a $3.2 million impairment related to our Brazil fleet reporting unit. No other impairment charges were identified. See Note 9, Goodwill and Other Intangible Assets, for further information. The Company’s annual goodwill and intangible asset impairment tests performed as of October 1, 2017 and 2016 did not identify any impairment.

Our European fleet and Brazil benefits reporting units had negative carrying values as of October 1, 2018. Our 2018 annual goodwill impairment test indicated an excess of estimated fair value greater than the carrying values of these reporting units of approximately $180 million and $250 million, respectively. As of December 31, 2018, goodwill assigned to these reporting units totaled approximately $35.8 million and $14.3 million, respectively. Such amounts are included in our Fleet Solutions and Health and Employee Benefit Solutions segments, respectively.

Intangible assets that are deemed to have definite lives are amortized over their useful lives, which is the period of time that the asset is expected to contribute directly or indirectly to future cash flows. The Company determines the useful lives of its identifiable intangible assets after considering the specific facts and circumstances related to each intangible asset. The factors that management considers when determining useful lives include the contractual term of agreements, the history of the asset, the Company’s long-term strategy for the use of the asset, any laws or other local regulations which could impact the useful life of the asset and other economic factors, including competition and specific market conditions. An evaluation of the remaining useful lives of the definite-lived intangible assets is performed periodically to determine if any change is warranted.

Impairment and Disposals of Assets

Long-lived assets are tested for impairment whenever facts or circumstances, such as a reduction in operating cash flow or a significant adverse change in the manner the asset is being used, indicate the carrying amount of the asset may not be recoverable. The Company compares the estimated undiscounted future cash flows associated with these assets or operations to their carrying value to determine if a write-down to fair value is required. See Note 22, Impairment and Restructuring Activities, for further discussion on impairments and asset write-offs.

Fair Value of Financial Instruments

The Company holds mortgage-backed securities, fixed-income securities, money market funds, derivatives (see Note 12, Derivative Instruments) and certain other financial instruments that are carried at fair value. The Company determines fair value based upon quoted prices when available or through the use of alternative approaches, such as model pricing, when market quotes are not readily accessible or available. Various factors are considered in determining the fair value of the Company’s obligations, including: closing exchange or over-the-counter market price quotations; time value and volatility factors underlying options and derivatives; price activity for equivalent instruments; and the Company’s own-credit standing.

These valuation techniques may be based upon observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company’s market assumptions. These two types of inputs create the following fair value hierarchy:

• Level 1 – Quoted prices for identical instruments in active markets.

• Level 2 – Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.

• Level 3 – Instruments whose significant value drivers are unobservable.

Assets and liabilities measured at fair value are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Our assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability.

Revenue Recognition

The Company adopted ASU 2014–09 (“Topic 606”) on January 1, 2018, utilizing the modified retrospective method. Under the modified retrospective method, prior period comparable financial information continues to be presented under the guidance of ASC 605, Revenue Recognition. See Note 2, Recent Accounting Pronouncements, for further information regarding the adoption impact. Topic 606 does not apply to rights or obligations associated with financial instruments, which continue to be within the scope of Topic 310, Receivables. In addition, gains on the sale of WEX Latin America receivables are included in other revenue and are within the scope of ASC 860, Transfers and Servicing.

The vast majority of the Company’s Topic 606 revenue is derived from stand-ready obligations to provide payment processing, transaction processing and SaaS services and support. The transaction-based fees are generally calculated based on measures such as (i) percentage of dollar value of volume processed; (ii) number of transactions processed; or (iii) some combination thereof. The Company has entered into agreements with major oil companies, fuel retailers, vehicle maintenance providers, online travel agencies and health partners which provide products and/or services to the Company’s customers. These agreements specify that a transaction is deemed to be captured when the Company has validated that the transaction has no errors and has accepted and posted the data to the Company’s records. Prior to adoption of Topic 606, the Company recognized revenues when persuasive evidence of an arrangement existed, the products and services had been provided to the client, the sales price was fixed or determinable and collectability was reasonably assured. Subsequent to adoption of Topic 606, revenue is recognized based on the value of services transferred to date using a time elapsed output method. The change in accounting guidance did not result in a change in the pattern or timing of our revenue recognition. Point-in-time revenue recognized during the year ended December 31, 2018 was not material. See Note 3, Revenue, for further information regarding accounting policies applied before and after the Company's adoption of Topic 606 as well as for a description of the major components of revenue.

The Company generally records revenue net of consideration retained based upon its conclusion that the Company is the agent in its principal versus agent relationships. Prior to the adoption of Topic 606, this conclusion was based on the following criteria: (i) the Company is not the primary obligor in the arrangement; (ii) the Company has no inventory risk; (iii) the Company does not have reasonable latitude with respect to establishing the price for the product; (iv) the Company does not make any changes to the product or have any involvement in the product specifications; and, (v) the amount the Company earns for its services is fixed, within a limited range. Under Topic 606, the Company evaluated the nature of its promise to the customer and determined that it does not control a promised good or service before transferring that good or service to the customer, but rather arranges for another entity to provide the goods or services.

The Company enters into contracts with certain large customers or partners that provide for fee rebates tied to performance milestones. Rebates and incentives are calculated based on estimated performance and the terms of the related business agreements. Prior to the adoption of Topic 606, certain amounts paid to partners in our Fleet Solutions and Travel and Corporate Solutions segments were recorded as a reduction in revenue in the same period that revenue was earned or performance occurs. Subsequent to the adoption of Topic 606, these amounts are now reflected within sales and marketing expense on our consolidated statements of income. See Note 2, Recent Accounting Pronouncements, for further information regarding the adoption impact.

Stock-Based Compensation

The Company recognizes the fair value of all stock-based payments to employees in its financial statements. The Company estimates the fair value of service-based stock option awards and market performance-based stock option awards on the grant date using a Black-Scholes-Merton valuation model and a Monte Carlo simulation model, respectively. The fair value of Restricted Stock Units (“RSUs”), including Performance Based Restricted Stock Units (“PBRSUs”), is determined and fixed on the grant date based on the closing price of the Company’s stock price.

Stock-based compensation expense is net of estimated forfeitures and is recorded over each award’s requisite service period. The Company uses the straight-line methodology for recognizing the expense associated with service-based stock options and RSU grants and a graded-vesting methodology for the expense recognition of market performance-based stock options and PBRSUs.

Advertising Costs

Advertising and marketing costs are expensed in the period incurred. During the years ended December 31, 2018, 2017 and 2016, advertising expense was $16.3 million, $17.1 million and $14.9 million, respectively.

Income Taxes

Income taxes are accounted for under the asset and liability method. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in the period that includes the enactment date.

The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which the associated temporary differences became deductible. A valuation allowance is established for those jurisdictions in which deferred tax assets realization is deemed less than more likely than not.

Accounting guidance prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. This accounting guidance also provides guidance on derecognition, classification, interest and penalties, accounting in the interim periods, disclosure, and transition. Penalties and interest related to uncertain tax positions are recognized as a component of income tax expense. To the extent penalties and interest are not assessed with respect to uncertain tax positions, amounts accrued are reduced and reflected as a reduction of the overall income tax provision.

Earnings per Share

Basic earnings per share is computed by dividing net income attributable to shareholders by the weighted average number of shares of common stock and vested deferred stock units (“DSUs”) outstanding during the year. The computation of diluted earnings per share is similar to the computation of basic earnings per share, except that the denominator is increased for the assumed exercise of dilutive options and assumed issuance of unvested performance-based awards for which the performance condition has been met as of the date of determination using the treasury stock method unless the effect is anti-dilutive. The treasury stock method assumes that proceeds, including cash received from the exercise of employee stock options and the average unrecognized compensation expense for unvested share-based compensation awards, would be used to purchase the Company’s common stock at the average market price during the period.

The following table summarizes net income attributable to shareholders and reconciles basic and diluted shares outstanding used in the earnings per share computations:

	Year ended December 31,
(In thousands)	2018		2017		2016
Net income attributable to shareholders	$	168,295	$	160,062	$	23,499
Weighted average common shares outstanding – Basic	43,156		42,977		40,809
Dilutive impact of share-based compensation awards	418		128		105
Weighted average common shares outstanding – Diluted	43,574		43,105		40,914

For the years ended December 31, 2018, 2017 and 2016, an immaterial number of outstanding share-based compensation awards were excluded from the computation of diluted earnings per share, as the effect of including these awards would be anti-dilutive.

Foreign Currency Movement

The financial statements of the Company’s foreign subsidiaries, where the local currency is the functional currency, are


translated to U.S. dollars using year-end spot exchange rates for assets and liabilities, average exchange rates for revenue and expenses and historical exchange rates for equity transactions. The resulting foreign currency translation adjustment is recorded as a component of accumulated other comprehensive loss.

Gains and losses on foreign currency transactions as well as the remeasurement of the Company’s cash, receivable and payable balances that are denominated in foreign currencies, are recorded directly in net foreign currency gain (loss) in the consolidated statements of income. However, gains or losses resulting from intercompany transactions where repayment is not anticipated for the foreseeable future are not recognized in the consolidated statements of income. In these situations, the gains or losses are deferred and included as a component of accumulated other comprehensive loss. In addition, gains and losses associated with the Company’s foreign currency exchange derivatives are recorded in net foreign currency gain (loss) in the consolidated statements of income.

Accumulated Other Comprehensive Loss (“AOCL”)

For the year ended December 31, 2018, AOCL consists entirely of unrealized gains and losses on foreign currency translation adjustments pertaining to the net investment in foreign operations. For the years ended December 31, 2017 and 2016, AOCL also included less than $1 million related to unrealized gains and losses on investment securities. Realized gains or losses on investment securities are classified as non-operating in the consolidated statements of income. Amounts are recognized net of tax to the extent applicable.

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Recent Accounting Pronouncements

12 Months Ended

Dec. 31, 2018

Accounting Changes and Error Corrections [Abstract]

Recent Accounting Pronouncements

2. Recent Accounting Pronouncements

The following table provides a brief description of recent accounting pronouncements that could have a material effect on our financial statements:

Standard	Description	Date/Method of Adoption	Effect on financial statements or other significant matters
Adopted During the Year Ended December 31, 2018
ASU 2014–09	This standard supersedes most existing revenue recognition guidance under GAAP. This revenue recognition standard requires entities to recognize revenue for the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, the standard requires disclosure of the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers.	The Company adopted ASU 2014–09 on January 1, 2018 using the modified retrospective approach to those contracts that were not completed as of January 1, 2018. Adoption resulted in a cumulative adjustment to retained earnings as of the effective date, without restatement of prior period amounts.	The Company’s revenue from discount and interchange, transaction processing and certain fees is within the scope of Topic 606. FASB and its Transition Resource Group have issued clarifications on various aspects of ASU 2014–09. There were three primary impacts to the Company resulting from the adoption of Topic 606, which are described below. Certain amounts paid to partners in our Fleet Solutions and Travel and Corporate Solutions segments have been determined to fall under the “cost to obtain a contract” guidance. As a result, these amounts, which were previously presented as a reduction of revenues, are now reflected within sales and marketing expense on our consolidated statements of income. This change increased both reported revenues and expenses for the year ended December 31, 2018 by $60.7 million. Network fees paid by all three of our segments, but primarily by our Travel and Corporate Solutions segment, are now presented as a reduction of revenues in our consolidated statements of income. Prior to January 1, 2018, these amounts were included within service fees. This change reduced both reported revenues and expenses by $18.5 million for the year ended December 31, 2018. Certain costs to obtain a contract, such as sales commissions, are to be capitalized and amortized over the life of the customer relationship, with a practical expedient available for contracts under one year in duration. The vast majority of the Company’s commissions will continue to be expensed as incurred. This change resulted in an immaterial impact to operating income for the year ended December 31, 2018. As of January 1, 2018, we recorded $0.6 million cumulative-effect adjustment, net of the associated tax effect, related to the deferral of capitalizable costs to obtain a contract within our Health and Employee Benefit Solutions segment. These commissions are amortized to sales and marketing expense over a useful life that considers the contract term, our commission policy, renewal experience and the transfer of services to which the asset relates.
ASU 2016–01	This standard requires equity investments, except those accounted for under the equity method of accounting, or those that result in consolidation of the investee, to be measured at fair value with changes in fair value recognized in net income.	The Company adopted ASU 2016–01 effective January 1, 2018.	Changes in the fair value of investment securities are now reflected as non-operating income within our consolidated statements of income. The adoption did not have a material impact on our results of operations, balance sheet or cash flows.
ASU 2016–18	This standard clarifies the classification and presentation of restricted cash in the statement of cash flows. Upon adoption, the statement of cash flows must explain the change during the period in the total of cash and cash equivalents and amounts described as restricted cash or cash equivalents.	The Company retrospectively adopted ASU 2016–18 effective January 1, 2018.	This retrospective adoption resulted in including restricted cash in cash, cash equivalents and restricted cash when reconciling the beginning of year and end of year amounts presented on the consolidated statements of cash flows. A reconciliation of cash, cash equivalents and restricted cash as reported within our consolidated balance sheets is included within our consolidated statements of cash flows.

ASU 2017–04	This standard simplifies the subsequent measurement of goodwill, eliminating Step 2 from the goodwill impairment test, in which entities were to measure the goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount. Following adoption, entities should perform annual and interim goodwill impairment tests by comparing the fair value of a reporting unit with its carrying amount and if necessary, recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. The loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. Additionally, an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss, if applicable. Finally, the standard also eliminated the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test.	The Company early adopted ASU 2017–04 effective October 1, 2018.	The early adoption of this standard impacted the process used to calculate a goodwill impairment recognized during the fourth quarter of 2018. See Note 9, Goodwill and Other Intangible Assets, for more information.
ASU 2017–07	This standard changes the presentation of net benefit pension costs by requiring the disaggregation of certain of its components. Under the guidance, companies are required to present the service cost component in the same income statement line item(s) as other employee compensation costs arising from services rendered during the period. The other components of net benefit cost will be presented in the income statement separately from the service cost component and outside the subtotal of operating income, if one is presented. Additionally, only the service cost component will be eligible for capitalization under the new guidance.	The Company adopted ASU 2017–07 effective January 1, 2018.	The adoption did not have a material impact on our results of operations, cash flows or consolidated financial position.

Not Yet Adopted as of December 31, 2018
ASU 2016–02	This standard requires lessees to recognize leases on-balance sheet and disclose key information about leasing arrangements.	The Company plans to adopt ASU 2016–02 effective January 1, 2019 using the modified retrospective method provided under ASU 2018–11 Leases (Topic 842): Targeted Improvements.	The new standard provides a number of optional practical expedients in transition. We expect to elect the ‘package of practical expedients’, which permits us not to reassess under the new standard our prior conclusions about lease identification and lease classification. We do not expect to elect the use-of hindsight or the practical expedient pertaining to land easements; the latter not being applicable to us. While we continue to assess all of the effects of adoption, we currently believe the most significant effects relate to the recognition of new right-of-use (“ROU”) assets and lease liabilities on our balance sheet for our real estate operating leases and providing significant new disclosures about our leasing activities. We do not expect a significant change in our leasing activities between now and adoption. We currently expect to recognize operating lease liabilities on the March 31, 2019 unaudited condensed consolidated balance sheet ranging from $73 million to $83 million, based on the present value of the remaining minimum rental payments under current leasing standards for existing operating leases. We expect to recognize corresponding ROU assets on the March 31, 2019 unaudited condensed consolidated balance sheet ranging from $64 million to $74 million. The new standard also provides practical expedients for an entity’s ongoing accounting. We currently expect to elect the short-term lease recognition exemption for all leases that qualify. This means, for those leases that qualify, we will not recognize ROU assets or lease liabilities, including for existing short-term leases of those assets in transition. We also currently expect to elect the practical expedient to not separate lease and non-lease components for our real estate leases.
ASU 2016–13	This standard requires financial assets measured at amortized cost basis to be presented at the net amount expected to be collected. The measurement of expected credit losses will be based on historical experience, current conditions, and reasonable and supportable forecasts that impact the collectability of the reported amount.	The standard is effective for annual reporting periods beginning after December 15, 2019, including interim periods within those fiscal years.	The Company is evaluating the impact the standard will have on the consolidated financial statements and related disclosures.
ASU 2018–15	This standard clarifies the accounting for capitalizing implementation costs in a cloud computing arrangement that is a service contract. The standard provides that implementation costs be treated using the same criteria used for internal-use software development costs, with amortization expense being recorded in the same income statement expense line as the hosted service costs and over the expected term of the hosting arrangement.	The standard is effective January 1, 2020.	The Company does not believe that this standard will have a material impact on our results of operations, cash flows or consolidated financial position.

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Revenue

12 Months Ended

Dec. 31, 2018

Revenue from Contract with Customer [Abstract]

Revenue

3. Revenue

The Company adopted Topic 606 on January 1, 2018, utilizing the modified retrospective method. See Note 2, Recent Accounting Pronouncements, for further information regarding the adoption impact. Under the modified retrospective method, prior period comparable financial information continues to be presented under the guidance of ASC 605, Revenue Recognition. See Note 1, Summary of Significant Accounting Policies, for our revenue recognition accounting policies applied prior to our adoption of Topic 606.

The impact of adopting Topic 606 for the year ended December 31, 2018 was as follows:

	Year Ended December 31, 2018
(In thousands)	Prior to Adoption			Impact of Topic 606			As Reported
Revenues
Payment processing revenue	$	685,250		$	38,741		$	723,991
Account servicing revenue	308,096			—			308,096
Finance fee revenue	208,627			—			208,627
Other revenue	248,217			3,708			251,925
Total revenues	1,450,190			42,449			1,492,639
Cost of services
Processing costs	309,450			—			309,450
Service fees	72,146			(18,491		)	53,655
Provision for credit losses	66,482			—			66,482
Operating interest	38,407			—			38,407
Depreciation and amortization	79,935			—			79,935
Total cost of services	566,420			(18,491		)	547,929
General and administrative	209,319			—			209,319
Sales and marketing	168,504			60,730			229,234
Depreciation and amortization	119,870			—			119,870
Impairment charges	5,649			—			5,649
Operating income	380,428			210			380,638
Financing interest expense	(105,023		)	—			(105,023		)
Net foreign currency loss	(38,800		)	—			(38,800		)
Non-cash adjustments related to tax receivable agreement	(775		)	—			(775		)
Net unrealized gain on financial instruments	2,579			—			2,579
Income before income taxes	238,409			210			238,619
Income taxes	68,781			62			68,843
Net income	169,628			148			169,776
Less: Net income from non-controlling interest	1,481			—			1,481
Net income attributable to shareholders	$	168,147		$	148		$	168,295

Topic 606 does not apply to rights or obligations associated with financial instruments, including the Company’s finance fee and interest income from banking relationships and cardholders, certain other fees associated with cardholder arrangements and commissions paid related to such agreements, which continue to be within the scope of Topic 310. In addition, gains on sale of WEX Latin America receivables are included in other revenue and are within the scope of ASC 860, Transfers and Servicing. Non-Topic 606 revenue accounts for approximately 33 percent of total revenue for the year ended December 31, 2018.

The vast majority of the Company’s Topic 606 revenue is derived from stand-ready obligations to provide payment processing, transaction processing and SaaS services and support. Revenue is recognized based on the value of services transferred to date using a time elapsed output method. For payment processing and transaction processing, services are considered to be transferred when a transaction is captured and the Company has validated that the transaction has no errors.

We disaggregate our revenue from contracts with customers by service-type for each of our segments, as we believe it best depicts how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors.

The following table disaggregates our consolidated revenue for the year ended December 31, 2018:

	Year Ended December 31, 2018
(In thousands)	Fleet Solutions		Travel and Corporate Solutions		Health and Employee Benefit Solutions		Total
Topic 606 revenues
Payment processing revenue	$	464,980	$	203,289	$	55,722	$	723,991
Account servicing revenue	30,385		37,262		108,172		175,819
Other revenue	66,379		4,906		25,668		96,953
Total Topic 606 revenues	$	561,744	$	245,457	$	189,562	$	996,763
Non-Topic 606 revenues
Account servicing revenue	$	132,277	$	—	$	—	$	132,277
Finance fee revenue	190,528		1,391		16,708		208,627
Other revenue	90,591		56,496		7,885		154,972
Total non-Topic 606 revenues	$	413,396	$	57,887	$	24,593	$	495,876
Total revenues	$	975,140	$	303,344	$	214,155	$	1,492,639

Payment Processing Revenue

Payment processing revenue consists primarily of interchange income. Interchange income is a fee paid by a merchant bank (“merchant”) to the card-issuing bank (generally the Company) in exchange for the Company facilitating and processing transactions with cardholders. Interchange fees are set by the card network. WEX processes transactions through both closed-loop and open-loop networks.

• Our Fleet Solutions segment interchange income primarily relates to revenue earned on transactions processed through the Company’s proprietary closed-loop fuel networks. In closed-loop fuel network arrangements, written contracts are entered into between the Company and merchants, which determine the interchange fee charged on transactions. The Company extends short-term credit to the fleet cardholder and pays the merchant the purchase price for the cardholder’s transaction, less the interchange fees the Company retains. The Company collects the total purchase price from the fleet cardholder. In Europe, interchange income is specifically derived from the difference between the negotiated price of fuel from the supplier and the agreed upon price paid by fleet cardholders.

• Interchange income in our Travel and Corporate Solutions and Health and Employee Benefit Solutions segments relates to revenue earned on transactions processed through open-loop networks. In open-loop network arrangements, there are several intermediaries involved between the merchant and the cardholder and written contracts between all parties involved in the process do not exist. Rather, the transaction is governed by the rates determined by the payment network at the point-of-sale. This framework dictates the interchange rate, the risk of loss, dispute procedures and timing of payment. For these transactions, there is an implied contract between the Company and the merchant. In our Travel and Corporate Solutions segment, the Company remits payment to the card network for the purchase price of the cardholder transaction, less the interchange fees the Company earns. The Company collects the total purchase price from the cardholder. In our Health and Employee Benefit Solutions segment, funding of transactions and collections from cardholders is performed by third-party sponsor banks, who remit a portion of the interchange fee to us.

The Company has determined that the merchant is the customer as it relates to interchange income regardless of the type of network through which transactions are processed. The Company’s primary performance obligation to merchants is a stand-ready commitment to provide payment and transaction processing services as the merchant requires, which is satisfied over time in daily increments. Since the timing and quantity of transactions to be processed by us is not determinable, the total consideration is determined to be variable consideration. The variable consideration for our payment and transaction processing service is usage-based and therefore specifically relates to our efforts to satisfy our 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 interchange income on a daily basis based on the services that are performed on that day.

In determining the amount of consideration received related to payment and transaction processing services provided, the Company assessed other intermediaries involved in the processing of transactions, including merchant acquirers, card networks, sponsor banks and third-party payment processors, and assessed whether the Company controls such services performed by other intermediaries according to principal-agent guidance in Topic 606. Based on this assessment, the Company determined that WEX does not control the services performed by merchant acquirers, card networks and sponsor banks as each of these parties is the primary obligor for their portion of payment and transaction processing services performed. Therefore, interchange income is recognized net of any fees owed to these intermediaries. The Company determined that services performed by third-party payment processors are controlled by WEX as the Company is responsible for directing how the third-party payment processor authorizes and processes transactions on the Company’s behalf. Therefore, such fees paid to third-party payment processors are recorded as service fees within cost of services.

Additionally, the Company enters into contracts with certain large customers or strategic cardholders that provide for fee rebates tied to performance milestones. The Company considered whether such fee rebates constitute consideration payable to a customer or other parties that purchase services from the customer per Topic 606. If so, such fee rebates, which are considered variable consideration, are recorded as a reduction in payment processing revenue in the same period that related interchange income is recognized. For the year December 31, 2018, such variable consideration totaled approximately $858.9 million. Fee rebates made to certain other partners were determined to be costs to obtain a contract, and are recorded as sales and marketing expenses.

Account Servicing Revenue

In our Fleet Solutions segment, account servicing revenue is primarily comprised of monthly fees charged to cardholders based on the number of vehicles serviced. These fees are primarily in return for providing monthly vehicle data reports and are recognized on a monthly basis as the service is provided. Additionally, account servicing revenue includes other fees recognized as revenue when assessed to the cardholder as part of the lending relationship. This revenue is outside the scope of Topic 606. The Company also recognizes account servicing revenue related to reporting services on telematics hardware placements and permit sales to our OTR fleet customer base, both of which are within the scope of Topic 606.

In our Travel and Corporate Solutions segment, account servicing reflects revenues earned from our AOC acquisition, primarily consisting of licensing fees for use of our accounts receivable and accounts payable SaaS platforms.

In our Health and Employee Benefit Solutions segment, we also recognize account servicing fees for the per-participant per-month fee charged per consumer on our SaaS healthcare technology platform. Customers including health plans, third-party administrators, financial institutions and payroll companies typically enter into three to five year contracts, which contain significant termination penalties.

Our Travel and Corporate Solutions and Health and Employee Benefit Solutions segments provide SaaS services and support, which are stand-ready commitments and are satisfied over time in a series of daily increments. Revenue is recognized based on an output method using days elapsed to measure progress as the Company transfers control evenly over each monthly subscription period.

Finance Fee Revenue

The Company earns revenue on overdue accounts, which is recognized as revenue at the time the fees are assessed. The finance fee is calculated using the greater of a minimum charge or a stated late fee rate multiplied by the outstanding balance that is subject to a late fee charge. On occasion, these fees are waived to maintain customer goodwill. The established reserve for such waived amounts is estimated and offset against the late fee revenue recognized. These waived fees amounted to approximately $19.1 million, $16.9 million and $10.9 million in 2018, 2017 and 2016, respectively. Finance fee revenue includes amounts earned by the Company’s factoring business, which purchases accounts receivable from third-parties at a discount. Through June 2018, the Company also recognized finance fee revenue earned on the Company’s foreign salary advance product. During the third quarter of 2018, the Company revised the WEX Latin America securitized debt agreement, which now meets the derecognition criteria for the sale of salary advance product receivables. As a result, gains on the sale of these receivables are now recognized within “Other Revenue” below. See Note 13, Off-Balance Sheet Arrangements, for further information on our WEX Latin America securitization.

Other Revenue

Other revenue includes transaction processing revenue, professional services, including software development projects and other services sold subsequent to the core offerings, and the sales of telematics hardware, all of which is within scope of Topic 606. Revenue is recognized when control of the services or hardware is transferred to our customers, in an amount that reflects the consideration that we expect to receive in exchange for those services. In addition, international settlement fees and certain other cardholder fees (e.g. replacement card fees) and gains on sale of WEX Latin America receivables are included in other revenue. This revenue is outside the scope of Topic 606 and is recognized upon completion of the related service or the sale date of the receivables.

Contract Balances

The Company’s contract assets consist of upfront payments made to customers under long-term contracts and are recorded upon payment or when due. These payments reduce revenue recognition in future periods, as the resulting asset is amortized against revenue as the Company performs its obligations under these arrangements. The Company’s contract liabilities consist of customer payments received before the Company has satisfied the associated performance obligations and upfront payments due to the customer.

The following table provides information about these contract assets and liabilities from contracts with customers. Our contract assets and liabilities are reported in a net position on a contract-by-contract basis at the end of each reporting period.

(In thousands)
Contract balance	Location on the consolidated balance sheets	December 31, 2018		January 1, 2018
Receivables1	Accounts receivable, net	$	32,949	$	30,386
Contract assets	Prepaid expenses and other current assets	$	3,819	$	7,053
Contract assets	Other assets	$	19,232	$	49,068
Contract liabilities	Other current liabilities	$	7,612	$	26,592

¹ The majority of the Company’s receivables, excluded from the table above, are either due from cardholders, who have not been deemed our customer as it relates to interchange income, or from revenues earned outside of the scope of Topic 606.

Impairment losses recognized on our receivables and contract assets were immaterial for the year ended December 31, 2018. In the year ended December 31, 2018, we recognized revenue of $10.5 million related to contract liabilities. As result of a contract amendment executed during 2018, amounts previously paid were returned to the Company and remaining liabilities were waived, resulting in a $32.0 million reduction in contract assets and a $16.0 million reduction in contract liabilities.

Remaining Performance Obligations

The Company’s unsatisfied, or partially unsatisfied performance obligations as of December 31, 2018 represent the remaining minimum monthly fees on a portion of contracts across the lines of business and contractually obligated professional services yet to be provided by the Company. It is not indicative of the Company’s future revenue, as it relates to an insignificant portion of the Company’s operations. As allowed by Topic 606, the Company has elected to exclude from this disclosure the value of unsatisfied performance obligations for contracts with an original expected duration of one year or less.

The following table includes revenue expected to be recognized in the future related to remaining performance obligations at the end of the reporting period.

(In thousands)	2019		2020		2021		2022		2023		Thereafter		Total
Minimum monthly fees1	$	61,969	$	38,319	$	20,738	$	11,003	$	2,511	$	118	$	134,658
Professional services2	13,348		675		—		—		—		—		14,023
Total remaining performance obligations	$	75,317	$	38,994	$	20,738	$	11,003	$	2,511	$	118	$	148,681

¹ The transaction price allocated to the remaining performance obligations represents the minimum monthly fees on certain service contracts, which contain substantive termination penalties that require the counterparty to pay the Company for the aggregate remaining minimum monthly fees upon an early termination for convenience.

² Includes software development projects and other services sold subsequent to the core offerings, to which the customer is contractually obligated.

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Acquisitions

12 Months Ended

Dec. 31, 2018

Business Combinations [Abstract]

Acquisitions

4. Acquisitions

In 2018, we incurred and expensed $2.5 million related to acquisitions in process as of December 31, 2018, while costs related to acquisitions completed were insignificant. The Company incurred and expensed costs directly related to completed acquisitions of $1.0 million and $19.2 million in 2017 and 2016, respectively, which are included within general and administrative in the consolidated statements of income.

Asset Acquisition

In December 2016, the Company entered into a contract with Chevron to issue and operate branded commercial fleet cards commencing in 2018. During October 2018, the Company entered into a definitive asset purchase agreement to acquire Chevron’s existing trade accounts receivable and customer portfolio from a third-party for $223.4 million, of which a portion will be paid during 2019. During 2018, the consideration paid consisted of $162.8 million to acquire the customer portfolio, with $38.9 million paid into escrow for the carrying value of a portion of the accounts receivable at the date of purchase. We accounted for this transaction under the asset acquisition method of accounting. As of December 31, 2018, the deposits for the customer portfolio and accounts receivable are recorded in other assets and prepaid expenses and other current assets on the consolidated balance sheet, respectively. When the Company obtains control of the customer portfolio and the customer accounts are converted onto the Company’s payment processing platform, the amounts will be reclassified to other intangible assets and accounts receivable, respectively. Concurrently with entering into the asset purchase agreement, we modified a number of contract terms, including extending the term of Chevron’s agreement, which is the period that we will use to amortize the other intangible asset on a straight line basis. Transaction costs related to the acquisition were insignificant and expensed as incurred.

Business Acquisitions

Noventis

During October 2018, the Company entered into a definitive agreement to acquire Noventis, a long-time customer and electronic payments network focused on optimizing payment delivery for bills and invoices to commercial entities, for approximately $310 million. In January 2019, this acquisition was completed and primarily funded with cash on hand and through borrowings under the 2016 Credit Agreement, as amended during January 2019. See Note 25, Subsequent Events, for further information on the amendment. This acquisition is expected to expand our reach as a corporate payments supplier and provide more channels to billing aggregators and financial institutions. This acquisition will be accounted for as a business combination, with assets acquired and liabilities assumed assigned to our Travel and Corporate Solutions segment. The Company closed this transaction on January 24, 2019 and, as such, the accounting for this acquisition was incomplete at the time the consolidated financial statements were issued.

The Company has performed a preliminary valuation analysis, which is based on estimates and assumptions that are subject to change significantly within the measurement period. We currently expect to recognize intangible assets equal to approximately half of the purchase price, comprised of customer relationship and developed technology assets. Additionally, we expect to record a similar amount of goodwill as part of this business combination, which is not expected to be deductible for income tax purposes.

AOC

Effective October 18, 2017, the Company acquired certain assets and assumed certain liabilities of AOC, an industry leader in commercial payments technology.The acquisition of AOC, a longstanding technology provider for our virtual card product, will broaden our capabilities, increase our pool of employees with payments platform expertise and allow us to evolve with the needs of our customers and partners through the use of AOC’s payments processing technology platforms.

The Company purchased AOC for $129.8 million, which was funded with cash on hand and through borrowings under the 2016 Credit Agreement.The Company recorded adjustments to the assets acquired and liabilities assumed throughout the measurement period, which ended on September 30, 2018. The Company obtained information to assist in determining the fair values of certain assets acquired and liabilities assumed, resulting primarily in the recording of other intangible assets and goodwill. Goodwill is calculated as the consideration in excess of net assets recognized and represents the future economic benefits arising from other assets acquired that could not be individually identified and separately recognized, including synergies derived from the acquisition. The goodwill and intangible assets recorded from this business combination were assigned to our Travel and Corporate Solutions segment. The goodwill recognized in this business combination will be deductible for income tax purposes. The Company assigned $21.6 million of the purchase price to an acquired processing platform that had not reached technological feasibility as of the date of acquisition. During the third quarter of 2018, the Company placed this asset into service.

The following is a summary of the allocation of the purchase price to the assets and liabilities acquired:

(In thousands)	As Reported December 31, 2017			Measurement Period Adjustments			As Reported, Final
Total consideration	$	129,828		$	—		$	129,828
Less:
Cash	15,546			—			15,546
Accounts receivable	4,171			100			4,271
Property and equipment	2,530			(1,329		)	1,201
Customer relationships(a)	15,000			200			15,200
Developed technologies(b)	24,100			—			24,100
Trademarks and trade names(c)	1,460			10			1,470
In-process research and development	—			21,600			21,600
Other liabilities	(685		)	(772		)	(1,457		)
Recorded goodwill	$	67,706		$	(19,809	)	$	47,897

^(a) Weighted average life – 9.0 years.

^(b) Weighted average life – 3.4 years.

^(c) Weighted average life – 4.3 years.

^{(a) (b) (c)} The weighted average life of these amortized intangible assets is 5.5 years.

Since the acquisition date, the operations of AOC contributed net revenues of approximately $6.7 million and net loss before taxes of approximately $0.6 million during the year ended December 31, 2017. No pro forma information has been included in these financial statements as the operations of AOC for the period that they were not part of the Company are not material to the Company’s revenues, net income and earnings per share.

EFS

On July 1, 2016, the Company acquired all of the outstanding membership interests of EFS, a provider of customized payment solutions for fleet and corporate customers with a focus on the large and mid-sized over-the-road fleets. The acquisition enabled the Company to expand its customer footprint and to utilize EFS’ technology to better serve the needs of all fleet customers.

In consideration for the acquisition of EFS, the Company issued 4,012 shares of its common stock valued at approximately $355.0 million based on the July 1, 2016 closing price of the Company’s common stock on the NYSE. This represented approximately 9.4 percent of the Company’s outstanding common stock after giving effect to the issuance of the new shares in connection with this acquisition. The cash consideration for the transaction totaled approximately $1.2 billion, and was funded with amounts received under the 2016 Credit Agreement described further in Note 15, Financing and Other Debt. The value of the total cash and stock consideration paid for the acquisition of EFS was approximately $1.4 billion, net of approximately $93.0 million in cash acquired.

The Company obtained information to determine the fair values of certain assets acquired and liabilities assumed throughout the one year measurement period and recorded adjustments to the assets acquired and liabilities assumed, resulting in the recording of other intangible assets and goodwill as described below. Goodwill is calculated as the consideration in excess of net assets recognized and represents the future economic benefits arising from other assets acquired that could not be individually identified and separately recognized, including synergies derived from the acquisition. The Company finalized the EFS purchase accounting in the second quarter of 2017.

The tax structure of EFS consisted of limited liability companies and corporations. The Company’s  tax election allowed a step-up in tax basis related to its 49.5 percent direct ownership in the parent limited liability company. The remaining 50.5 percent ownership in the parent limited liability company is held by another limited liability company, taxed as a corporation, that is part of the EFS structure and will therefore receive carry over tax basis. The Company determined that approximately $557.0 million of the goodwill recognized in this business combination will be deductible for income tax purposes.

The following represents the components and final allocation of the purchase price:

	As Reported December 31, 2016			Measurement Period Adjustments			As Reported, Final
Total consideration, net of cash acquired	$	1,444,235		$	—		$	1,444,235
Less:
Accounts receivable	162,684			—			162,684
Property and equipment	2,387			1			2,388
Customer relationships(a)(b)	842,700			(1,300		)	841,400
Developed technologies(a)(c)	32,120			—			32,120
Trademarks and trade names(a)(d)	13,700			—			13,700
Deferred income tax assets	34,992			6,352			41,344
Other assets	—			739			739
Accounts payable	(153,777		)	248			(153,529		)
Accrued expenses	(128,267		)	9,361			(118,906		)
Deferred income tax liabilities	(91,194		)	28,071			(63,123		)
Recorded goodwill(a)	$	728,890		$	(43,472	)	$	685,418

^(a) $1.2 billion in goodwill and other intangible assets recorded from this business combination were allocated to our Fleet Solutions segment, the remaining $337.3 million was allocated to our Travel and Corporate Solutions segment.

^(b) Weighted average life – 8.1 years.

^(c) Weighted average life – 2.0 years.

^(d) Weighted average life – 7.7 years.

^{(b) (c) (d)} The weighted average life of these amortized intangible assets is 7.9 years.

The pro forma financial information presented below includes the effects of the EFS acquisition as if it had been consummated on January 1, 2015. These pro forma results were calculated after applying the Company’s accounting policies and adjusting results to reflect the intangible amortization and interest expense associated with the 2016 Credit Agreement used to fund the acquisition and resulting income tax effects assuming they were applied and incurred since January 1, 2015.The pro forma results of operations do not include any cost savings or other synergies that may have resulted from the acquisition or any estimated integration costs incurred by the Company. Accordingly, the following pro forma information is not necessarily indicative of either the future results of operations or results that would have been achieved if the acquisition had taken place at the beginning of 2015. Subsequent to the July 1, 2016 acquisition date, the operations of EFS contributed revenues of approximately $83.3 million and net income before taxes of approximately $5.8 million to the Company’s 2016 consolidated statement of income.

The following represents unaudited pro forma operational results as if the acquisition had occurred as of January 1, 2015:

	Year Ended December 31, 2016
Total revenues	$	1,083,908
Net income attributable to shareholders	$	5,683
Pro forma net income attributable to shareholders per common share:
Basic	$	0.13
Diluted	$	0.13

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Divestitures

12 Months Ended

Dec. 31, 2018

Discontinued Operations and Disposal Groups [Abstract]

Divestitures

5. Divestitures

During the year ended December 31, 2017, the Company sold $8.9 million in net assets of its Telapoint business for proceeds of $29.9 million. The sale resulted in a pre-tax book gain of $21.0 million. Costs incurred related to this divestiture were immaterial. Prior to the sale, the Telapoint business was assigned to our North American Fleet reporting unit, which is included within our Fleet Solutions reportable segment.

The divestiture was not material to the Company’s annual revenue, net income or earnings per share. The Company does not view this divestiture as a strategic shift in its operations.

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Accounts Receivable

12 Months Ended

Dec. 31, 2018

Receivables [Abstract]

Accounts Receivable

6. Accounts Receivable

In general, the Company’s trade receivables provide for payment terms of 30 days or less. Receivables not paid within the terms of the agreement are generally subject to late fees based upon the outstanding receivable balance.

The Company extends revolving credit to certain small fleets. These accounts are also subject to late fees and balances that are not paid in full are subject to interest charges based on the revolving balance. The Company had approximately $18.9 million and $12.2 million in receivables with revolving credit balances as of December 31, 2018 and 2017, respectively.

Concentration of Credit Risk

The receivables portfolio consists of a large group of homogeneous smaller balances across a wide range of industries, which are collectively evaluated for impairment. No one customer receivable balance represented 10 percent or more of the outstanding receivables balance as of December 31, 2018 or 2017. The following table presents the outstanding balance of trade accounts receivable that are less than 30 and 60 days past due, in each case as a percentage of total trade accounts receivable:

	December 31,
Delinquency Status	2018		2017
29 days or less past due	95	%	95	%
59 days or less past due	98	%	97	%

Reserves for Accounts Receivable

Receivables are generally written off when they are 150 days past due or upon declaration of bankruptcy of the customer. The reserve for credit losses is primarily calculated by an analytic model that also takes into account other factors, such as the actual charge-offs for the preceding reporting periods, expected charge-offs and recoveries for the subsequent reporting periods, a review of past due accounts receivable balances, changes in payment patterns, known fraudulent activity in the portfolio, as well as leading economic and market indicators.     

The following table presents changes in the accounts receivable allowances:

	Year ended December 31,
(In thousands)	2018			2017			2016
Balance, beginning of year	$	33,387		$	21,564		$	14,672
Provision for credit losses1	66,482			64,218			33,458
Charges to other accounts2	19,067			16,869			10,166
Charge-offs	(78,323		)	(77,229		)	(43,309		)
Recoveries of amounts previously charged-off	6,854			7,526			6,201
Currency translation	(519		)	439			376
Balance, end of year	$	46,948		$	33,387		$	21,564

¹ During 2017, the majority of the increase relates to higher incidences of magnetic stripe card skimming fraud.

² The Company earns revenue by assessing monthly finance fees on accounts with overdue balances. These fees are recognized as revenue at the time the fees are assessed. The finance fee is calculated using the greater of a minimum charge or a stated late fee rate multiplied by the outstanding balance that is subject to a late fee charge. On occasion, these fees are waived to maintain relationship goodwill. Charges to other accounts represents the offset against the late fee revenue recognized when the Company establishes a reserve for such waived amounts.

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Investment Securities

12 Months Ended

Dec. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Investment Securities

7. Investment Securities

The Company’s investment securities as of December 31, 2018 and 2017, are presented below:

(In thousands)	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value(a)
2018
Mortgage-backed securities	$	255	$	5	$	—	$	260
Asset-backed securities	281		—		2		279
Municipal bonds	411		—		7		404
Fixed-income mutual fund(b)(c)	24,656		—		1,193		23,463
Total investment securities	$	25,603	$	5	$	1,202	$	24,406
2017
Mortgage-backed securities	$	325	$	4	$	24	$	305
Asset-backed securities	350		—		5		345
Municipal bonds	539		1		6		534
Fixed-income mutual fund(b)(c)	22,888		—		714		22,174
Total investment securities	$	24,102	$	5	$	749	$	23,358

^(a) The Company’s techniques used to measure the fair value of its investments are discussed in Note 18, Fair Value.

^(b) Not deemed available for current operations and have been classified as other assets

^(c)Excludes $6.4 million and $6.8 million in equity securities designated as trading as of December 31, 2018and 2017, respectively, included in prepaid expenses and other current assets and other assets on the consolidated balance sheets. See Note 17, Employee Benefit Plans, for additional information.

The Company reviews its investments to identify and evaluate indications of possible impairment. Factors considered in determining whether a loss is temporary include the length of time and extent to which the fair value has been less than the cost basis, the financial condition and near-term prospects of the investee, and the Company’s intent and ability to hold the investment for a period of time sufficient to allow for any anticipated recovery in market value. Substantially all of the Company’s fixed income securities are rated investment grade or better. The amount of investment securities that have been in a continuous unrealized loss position for more than twelve months is insignificant. The Company’s management has determined that these gross unrealized losses at December 31, 2018 and 2017 are temporary in nature.

The Company had maturities of investment securities of $0.3 million, $0.6 million and $0.5 million for the years ended December 31, 2018, 2017 and 2016, respectively.

The contractual maturity dates of the Company’s investment securities are as follows:

	December 31,
	2018				2017
(In thousands)	Cost		Fair Value		Cost		Fair Value
Due after 5 years through year 10	$	311	$	309	$	390	$	385
Due after 10 years	381		374		499		494
Mortgage-backed securities with original maturities of 30 years	255		260		325		305
Equity securities with no maturity dates	24,656		23,463		22,888		22,174
Total	$	25,603	$	24,406	$	24,102	$	23,358

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Property, Equipment and Capitalized Software, Net

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

Property, Equipment and Capitalized Software, Net

8. Property, Equipment and Capitalized Software, Net

Property, equipment and capitalized software, net consist of the following:

	December 31,
(In thousands)	2018			2017
Furniture, fixtures and equipment	$	78,167		$	69,695
Computer software	355,209			308,362
Leasehold improvements	25,516			23,248
Capital leases	—			759
Construction in progress	36,726			26,772
Total	495,618			428,836
Less: accumulated depreciation and amortization	(307,750		)	(264,928		)
Total property, equipment and capitalized software, net	$	187,868		$	163,908

Depreciation expense was $61.6 million, $49.9 million and $43.8 million in 2018, 2017 and 2016, respectively. During the year ended December 31, 2018 and 2017, the Company impaired approximately $2.4 million and $28.0 million of software under development, respectively. See Note 22, Impairment and Restructuring Activities, for further information. The Company did not incur significant impairment charges during 2016. As of December 31, 2018, we began separately presenting construction in progress, which includes software under development and other assets not yet placed into service, and conformed the amounts as of December 31, 2017.

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Goodwill and Other Intangible Assets

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

9. Goodwill and Other Intangible Assets

Goodwill

The changes in goodwill during the period January 1 to December 31, 2018 were as follows:

(In thousands)	Fleet Solutions Segment			Travel and Corporate Solutions Segment			Health and Employee Benefit Solutions Segment			Total
Gross goodwill, January 1, 2018	$	1,269,718		$	265,041		$	353,508		$	1,888,267
Acquisition adjustments for AOC	—			(19,809		)	—			(19,809		)
Foreign currency translation	(18,217		)	(600		)	(3,315		)	(22,132		)
Gross goodwill, December 31, 2018	$	1,251,501		$	244,632		$	350,193		$	1,846,326
Accumulated impairment, January 1, 2018	$	(927	)	$	(11,208	)	$	—		$	(12,135	)
Brazil fleet impairment1	(3,225		)	—			—			(3,225		)
Foreign currency translation	(53		)	1,216			—			1,163
Accumulated impairment, December 31, 2018	$	(4,205	)	$	(9,992	)	$	—		$	(14,197	)
Net goodwill, January 1, 2018	$	1,268,791		$	253,833		$	353,508		$	1,876,132
Net goodwill, December 31, 2018	$	1,247,296		$	234,640		$	350,193		$	1,832,129

¹During our annual goodwill assessment completed in the fourth quarter of 2018, we assessed the impact of a customer loss significant to our Brazil fleet reporting unit. The fair value of this reporting unit was derived using a combination of present value of estimated cash flows and prices from comparable businesses. The calculated fair value was then compared to the reporting unit’s carrying value, which resulted in the Company recording a $3.2 million goodwill impairment charge. There is no remaining net goodwill associated with this reporting unit.

The changes in goodwill during the period January 1 to December 31, 2017 were as follows:

(In thousands)	Fleet Solutions Segment			Travel and Corporate Solutions Segment			Health and Employee Benefit Solutions Segment			Total
Gross goodwill, January 1, 2017	$	1,293,138		$	202,771		$	353,722		$	1,849,631
Acquisition adjustments for EFS	(37,296		)	(6,176		)	—			(43,472		)
Acquisition of AOC	—			67,706			—			67,706
Divestiture of Telapoint	(4,469		)	—			—			(4,469		)
Foreign currency translation	18,345			740			(214		)	18,871
Gross goodwill, December 31, 2017	$	1,269,718		$	265,041		$	353,508		$	1,888,267
Accumulated impairment, January 1, 2017	$	(855	)	$	(10,335	)	$	—		$	(11,190	)
Foreign currency translation	(72		)	(873		)	—			(945		)
Accumulated impairment, December 31, 2017	$	(927	)	$	(11,208	)	$	—		$	(12,135	)
Net goodwill, January 1, 2017	$	1,292,283		$	192,436		$	353,722		$	1,838,441
Net goodwill, December 31, 2017	$	1,268,791		$	253,833		$	353,508		$	1,876,132

Other Intangible Assets

Other intangible assets consist of the following:

	December 31, 2018							December 31, 2017
(in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Definite-lived intangible assets
Acquired software and developed technology	$	216,325	$	(113,694	)	$	102,631	$	203,861	$	(96,197	)	$	107,664
Customer relationships	1,243,589		(360,593		)	882,996		1,257,232		(269,216		)	988,016
Licensing agreements	32,962		(18,303		)	14,659		34,546		(15,029		)	19,517
Patent	2,332		(2,044		)	288		2,581		(2,076		)	505
Trade name	43,907		(14,421		)	29,486		44,079		(10,309		)	33,770
	$	1,539,115	$	(509,055	)	$	1,030,060	$	1,542,299	$	(392,827	)	$	1,149,472
Indefinite-lived intangible assets
Trademarks, trade names and brand names						4,134							4,575
Total						$	1,034,194						$	1,154,047

During the years ended December 31, 2018, 2017 and 2016, amortization expense was $138.2 million, $153.8 million and $97.8 million, respectively. The following table presents the estimated amortization expense related to the definite-lived intangible assets listed above for each of the next five fiscal years:

(in thousands)
2019	$	123,656
2020	$	113,304
2021	$	100,319
2022	$	89,585
2023	$	80,041

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Accounts Payable

12 Months Ended

Dec. 31, 2018

Payables and Accruals [Abstract]

Accounts Payable

10. Accounts Payable

Accounts payable consists of:

	December 31,
(In thousands)	2018		2017
Merchant payables	$	690,651	$	752,371
Other payables	124,091		90,809
Accounts payable	$	814,742	$	843,180

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Deposits, Borrowed Federal Funds and Other Debt

12 Months Ended

Dec. 31, 2018

Banking and Thrift [Abstract]

Deposits, Borrowed Federal Funds and Other Debt

11. Deposits, Borrowed Federal Funds and Other Debt

Deposits    

WEX Bank has issued certificates of deposit with maturities ranging from six months to five years and with interest rates ranging from 1.30 percent to 3.52 percent as of December 31, 2018. As of December 31, 2017, certificates of deposits had maturities ranging from three months to three years, with interest rates ranging from 1.00 percent to 2.15 percent. WEX Bank may issue additional brokered deposits, subject to FDIC rules governing minimum financial ratios, which include risk-based asset and capital requirements. As of December 31, 2018, all brokered deposits were in denominations of $250 thousand or less, corresponding to FDIC deposit insurance limits.

The Company requires deposits from certain customers as collateral for credit that has been extended. These deposits are generally non-interest bearing. Interest-bearing money market deposits are issued at variable rates based on LIBOR or the Federal Funds rate. Money market deposits may be withdrawn by the holder at any time, although notification may be required and the monthly number of transactions is limited. Interest-bearing brokered money market deposits, customer deposits and certificates of deposits with maturities within 1 year are classified as short-term deposits on our consolidated balance sheets.

WEX Bank is required to maintain reserves against a percentage of certain customer deposits by keeping balances with the Federal Reserve Bank. The required reserve based on the outstanding customer deposits was $11.1 million and $8.4 million at December 31, 2018 and 2017, respectively.

The following table presents the composition of deposits:

	December 31,
(in thousands)	2018			2017
Interest-bearing brokered money market deposits	$	283,790		$	285,899
Customer deposits	138,072			70,211
Certificates of deposits with maturities within 1 year (a)	505,582			630,879
Short-term deposits	927,444			986,989
Certificates of deposit with maturities greater than 1 year and less than 5 years (a)	345,231			306,865
Total Deposits	$	1,272,675		$	1,293,854
Weighted average cost of funds on certificates of deposit outstanding	2.36		%	1.51		%
Weighted average cost of interest-bearing brokered money market deposits	2.49		%	1.49		%

^(a) Certificates of deposit are classified as short-term or long-term within our consolidated balance sheets based on maturity date.

Sources of Funds

Borrowed Federal Funds

WEX Bank borrows from uncommitted federal funds lines to supplement the financing of its accounts receivable. There were no outstanding borrowings as of both December 31, 2018 and 2017. As of December 31, 2018 and 2017, the Company’s federal funds available lines of credit were $309.0 million and $275.0 million, respectively.

ICS Purchases

At December 31, 2017, WEX Bank participated in the ICS service offered by Promontory Interfinancial Network, which allows WEX Bank to purchase brokered money market demand accounts and demand accounts in an amount not to exceed $125.0 million as part of a one-way buy program. There was no outstanding balance for ICS purchases as of December 31, 2017. At December 31, 2018 no amounts were available under this arrangement. Subsequently, the funding capacity of $125.0 million was reinstated.

The following table presents the average interest rates for deposits and interest-bearing money market deposits:

	Year ended December 31,
(in thousands)	2018		2017		2016
Average interest rate:
Deposits	1.91	%	1.22	%	0.94	%
Interest-bearing money market deposits	2.03	%	1.12	%	0.50	%

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Derivative Instruments

12 Months Ended

Dec. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

12. Derivative Instruments

The Company is exposed to certain market risks relating to its ongoing business operations. From time to time, the Company enters into derivative instrument arrangements to manage various risks including interest rate risk, foreign exchange risk, and commodity price risk.

Interest Rate Swap Agreements

During 2016 and 2017, we entered into five interest rate swap contracts, one of which matured on December 31, 2018. As of December 31, 2018, these agreements are intended to fix the future interest payments associated with $1.0 billion of our variable rate borrowings at interest rates between 1.108% to 2.212%. At December 31, 2018, we had variable-rate borrowings of $1.7 billion under the 2016 Credit Agreement. After December 31, 2018, the Company entered into three additional interest rate swap contracts as discussed in Note 25, Subsequent Events.

The notional amounts, fixed interest rates and maturities of the interest rate swap agreements are as follows:

	Tranche A	Tranche B	Tranche C	Tranche D	Tranche E
Notional amount at inception (in thousands)	$300,000	$200,000	$400,000	$150,000	$250,000
Amortization	N/A	N/A	5% annually	N/A	N/A
Maturity date	12/30/2022	12/30/2022	12/31/2020	12/31/2020	12/31/2018
Fixed interest rate	2.204%	2.212%	1.108%	1.125%	0.896%

The following table presents information on the location and amounts of derivative instruments gains and losses:

(In thousands)		Year ended December 31,
Derivatives Not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income Statement	2018			2017			2016
Interest rate swap agreements – unrealized portion	Net unrealized gain on financial instruments	$	3,772		$	1,314		$	12,908
Interest rate swap agreements – realized portion	Financing interest expense	$	(6,160	)	$	(214	)	$	—
Commodity contracts	Net realized and unrealized gains on fuel price derivatives	$	—		$	—		$	711

See Note 18, Fair Value, for more information regarding the valuation of the Company’s interest rate swaps.

Fuel Derivatives Program

The Company previously utilized fuel price derivative instruments, which were designed to reduce the volatility of the Company’s cash flows associated with its fuel price-related earnings exposure in North America. After the first quarter of 2016, the Company was no longer hedged for changes in fuel prices. Management will continue to monitor the fuel price market and evaluate its alternatives as it relates to this hedging program.

The following table summarizes the changes in fair value of the fuel price derivatives which have been recorded on the consolidated statements of income:

(In thousands)	Year ended December 31, 2016
Realized gains	$	5,718
Change in unrealized fuel price derivatives	(5,007		)
Net realized and unrealized gains on fuel price derivatives	$	711

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Off-Balance Sheet Arrangements

12 Months Ended

Dec. 31, 2018

Receivables [Abstract]

Off-Balance Sheet Arrangements

13. Off-Balance Sheet Arrangements

WEX Europe Services Accounts Receivable Factoring

During the first quarter of 2017, WEX Europe Services entered into a factoring arrangement with an unrelated third-party financial institution (the “Purchasing Bank”). Under this arrangement, the Purchasing Bank establishes a credit limit for each customer account. The factored receivables are without recourse to the extent that the customer balances are maintained at or below the established credit limit. For customer receivable balances in excess of the Purchasing Bank’s credit limit, the Company maintains the risk of default. Additionally, there are no indications of the Company’s continuing involvement in the factored receivables. The Company obtained a true-sale opinion from an independent attorney, which states that the factoring agreement provides legal isolation upon a WEX Europe Services bankruptcy or receivership under local law and creates a sale of receivables for amounts transferred both below and above the established credit limits. As such, transfers under this arrangement are treated as sales and are accounted for as reductions in trade receivables because the agreements transfer effective control of the receivables to the Purchasing Bank. The Company records the proceeds as cash provided by operating activities.

The Company sold approximately $713.8 million and $574.4 million of receivables under this arrangement during the year ended December 31, 2018 and 2017, respectively. Proceeds received are recorded net of applicable expenses, interest and commissions. The loss on factoring was $4.7 million and $3.7 million for the year ended December 31, 2018 and 2017, respectively, and was recorded within cost of services in the consolidated statements of income. As of December 31, 2018 and December 31, 2017, the Company had associated factoring receivables of approximately $37.1 million and $61.8 million, respectively, of which approximately $0.2 million and $3.7 million, respectively, were in excess of the established credit limit. Charge-backs on balances in excess of the credit limit during the year ended December 31, 2018 and 2017 were insignificant.

WEX Bank Accounts Receivable Factoring

In August 2018, WEX Bank entered into a receivables purchase agreement with an unrelated third-party financial institution to sell certain of our trade receivables under non-recourse transactions. WEX Bank continues to service the receivables post-transfer with no participating interest. The Company obtained a true-sale opinion from an independent attorney, which states that the factoring agreement provides legal isolation upon WEX Bank bankruptcy or receivership under local law. As such, transfers under this arrangement are treated as a sale and are accounted for as a reduction in trade receivables because the agreements transfer effective control of the receivables to the buyer.

The Company sold approximately $3.2 billion of receivables under this arrangement during year ended December 31, 2018. Proceeds from the sale, which are reported net of a negotiated discount rate, are recorded in operating activities within the Company’s consolidated statement of cash flows. The loss on factoring was $1.0 million for the year ended December 31, 2018, and was recorded within cost of services in the consolidated statements of income.

WEX Latin America Securitization of Receivables

During the second quarter of 2017, WEX Latin America entered into a securitized debt agreement to transfer certain unsecured receivables associated with our salary payment card product to an investment fund managed by an unrelated third-party financial institution. WEX Latin America holds a non-controlling equity interest in the investment fund. During the year ended December 31, 2018, the Company’s equity contributions to the investment fund totaled $2.8 million.

As of December 31, 2017 and through June 30, 2018, this securitization arrangement did not meet the derecognition conditions due to continuing involvement with the transferred assets and accordingly WEX Latin America reported the transferred receivables and securitized debt on our consolidated balance sheets. The Company had $30.1 million and $19.0 million of securitized debt under this facility as of June 30, 2018 and December 31, 2017, respectively. During the six months ended June 30, 2018, the Company recognized approximately $4.4 million of operating interest expense under this financing arrangement.

During the third quarter of 2018, the securitization agreements were amended, resulting in the Company giving up effective control of the transferred receivables to the buyer. Additionally, the Company received a true-sale opinion from an independent attorney stating that the amended agreements provide legal isolation upon WEX Latin America bankruptcy or receivership under local law. As such, transfers under this arrangement are treated as a sale and are accounted for as a reduction in trade receivables. As the securitization is now accounted for as an off-balance sheet arrangement, the Company derecognized $31.4 million of transferred receivables and $30.1 million of securitized debt during the third quarter of 2018, with an immaterial impact to the consolidated statement of income for the year ended December 31, 2018.

    During the year ended December 31, 2018, the Company sold $39.8 million of receivables and recognized a $6.9 million gain on sale, consisting of the difference between the sales price and the carrying value of the receivables, which is recorded within other revenue in our consolidated statement of income. Cash proceeds from the transfer of these receivables is reflected as an operating activity within our consolidated statement of cash flows.

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Income Taxes

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Income Taxes

14. Income Taxes

Income before income taxes consisted of the following:

	Year ended December 31,
(In thousands)	2018		2017		2016
United States	$	194,770	$	147,240	$	32,622
Foreign	43,849		27,176		16,308
Total	$	238,619	$	174,416	$	48,930

Income taxes from continuing operations consisted of the following for the years ended December 31:

(In thousands)	United States			State and Local			Foreign			Total
2018
Current	$	16,027		$	3,566		$	17,916		$	37,509
Deferred	$	29,520		$	8,016		$	(6,202	)	$	31,334
Income taxes										$	68,843
2017
Current	$	2,254		$	3,687		$	13,743		$	19,684
Deferred	$	(11,748	)	$	10,842		$	(3,328	)	$	(4,234	)
Income taxes										$	15,450
2016
Current	$	(1,232	)	$	3,033		$	7,292		$	9,093
Deferred	$	21,565		$	(5,106	)	$	3,040		$	19,499
Income taxes										$	28,592

2017 Tax Act

On December 22, 2017, the 2017 Tax Act was signed into law making significant changes to the Internal Revenue Code. Changes include, but are not limited to, a federal corporate tax rate decrease from 35% to 21% for tax years beginning after December 31, 2017, the transition of U.S. international taxation from a worldwide tax system to a territorial system and a one-time transition tax on the mandatory deemed repatriation of foreign earnings. The Company estimated the provision for income taxes in accordance with the 2017 Tax Act and guidance available as of the date of the December 31, 2017 filing and as a result recorded a provisional amount of one-time income tax benefit of $60.6 million in the fourth quarter of 2017, the period in which the legislation was enacted.

During the third quarter of 2018, the Company recorded an adjustment to the one-time income tax benefit attributable to the Company updating its estimate of foreign undistributed earnings, which was materially offset by an adjustment to certain deferred tax attributes as a result of further clarification provided by the IRS relative to IRC 162(m). As of December 31, 2018 the Company completed its analysis and all amounts were considered final.

The 2017 Tax Act also changed the taxation of foreign earnings, and companies generally will not be subject to United States federal income taxes upon the receipt of dividends from foreign subsidiaries and will not be permitted foreign tax credits related to such dividends. However, the 2017 Tax Act created a new requirement to tax certain foreign earnings relating to GILTI. Based on the FASB guidance, the Company can elect an accounting policy choice of either treating taxes due on future U.S. inclusions in taxable income related to GILTI as a current period expense when incurred or factoring such amounts into the Company’s measurement of its deferred taxes. The Company elected to treat GILTI inclusions as a period cost in 2018 and this resulted in an increase in tax expense of $1.8 million for the year ended December 31, 2018.

    Undistributed earnings of certain foreign subsidiaries of the Company amounted to $64.9 million and $58.7 million at December 31, 2018 and 2017, respectively. These earnings are considered to be indefinitely reinvested. Upon distribution of these earnings in the form of dividends or otherwise, the Company would be subject to withholding taxes payable, where applicable, to foreign countries, but would have no further federal income tax liability.

The reconciliation between the income tax computed by applying the U.S. federal statutory rate and the reported effective tax rate on income from continuing operations is as follows:

	Year ended December 31,
(In thousands except for tax rates)	2018		2017		2016
Federal statutory rate	21.0	%	35.0	%	35.0	%
State income taxes (net of federal income tax benefit)	2.2		2.0		1.9
Foreign income tax rate differential	1.1		(0.7	)	(6.5	)
Revaluation of deferred tax assets for foreign and state tax rate changes, net	(1.3	)	0.4		(1.6	)
Research and development credit	(0.2	)	—		(0.9	)
Tax reserves	2.0		0.3		(7.6	)
Withholding taxes	0.2		0.2		0.5
2017 Tax Act	(0.2	)	(34.8	)	—
Change in valuation allowance	4.5		4.6		4.0
Nondeductible expenses	1.4		0.5		27.8
Incremental tax benefit from share-based compensation awards	(1.7	)	(0.9	)	—
GILTI	0.8		—		—
Other	(0.9	)	2.3		5.8
Effective tax rate	28.9	%	8.9	%	58.4	%

Our effective tax rate was 28.9 percent for 2018 as compared to 8.9 percent for 2017. The lower tax rate in 2017 was primarily due to the reduction of our net deferred tax liabilities resulting from the change in federal corporate income tax rate to 21 percent from 35 percent effective January 1, 2018 as part of the 2017 Tax Act.

Our effective tax rate was 8.9 percent for 2017 as compared to 58.4 percent for 2016. The decrease in our tax rate was primarily due to the reduction of our net deferred tax liabilities resulting from the change in federal corporate income tax rate to 21 percent from 35 percent effective January 1, 2018 as part of the 2017 Tax Act and a decrease in non-deductible expense in 2017, partly offset by the increase in valuation allowance. The 2016 tax rate reflected non-deductible expenses related to the losses incurred by our Brazilian subsidiary, as these losses were not deductible for tax purposes.

The tax effects of temporary differences in the recognition of income and expense for tax and financial reporting purposes that give rise to significant portions of the deferred tax assets and the deferred tax liabilities are presented below:

	December 31,
(In thousands)	2018			2017
Deferred assets related to:
Reserve for credit losses	$	10,357		$	6,957
Tax credit carryforwards	986			1,283
Stock-based compensation, net	10,937			9,858
Net operating loss carry forwards	48,235			53,721
Accruals	13,142			7,355
Total	$	83,657		$	79,174
Deferred tax liabilities related to:
Other liabilities	$	1,961		$	2,248
Deferred financing costs	3,078			7,219
Property, equipment and capitalized software	28,227			22,315
Intangibles	166,347			140,570
Total	$	199,613		$	172,352
Valuation allowance	26,086			15,349
Deferred income taxes, net	$	(142,042	)	$	(108,527	)

Net deferred tax (liabilities) assets by jurisdiction are as follows:

	December 31,
(In thousands)	2018			2017
United States	$	(151,125	)	$	(113,107	)
Australia	(516		)	(1,000		)
Europe	5,873			7,448
New Zealand	116			188
Brazil	3,202			(1,020		)
Canada	408			(1,036		)
Deferred income taxes, net	$	(142,042	)	$	(108,527	)

The Company had approximately $503.3 million of post apportionment state, $53.8 million of federal and $58.7 million of foreign net operating loss carryforwards at December 31, 2018 and approximately $294.3 million of post apportionment state, $114.8 million of federal and $73.2 million of foreign net operating loss carryforwards at December 31, 2017. The U.S. losses expire at various times through 2038. Foreign losses in Brazil and the UK have indefinite carryforward periods.

At December 31, 2018, the Company maintained valuation allowances for the following items: (i) acquired and certain net operating losses in the UK (ii) Evolution1’s equity investment in its minority-owned subsidiaries, (iii) state tax credits, and net deferred tax assets for certain states and (iv) certain net operating losses and estimated non-deductible expenses. In each case, the Company has determined it is not likely that the benefits will be utilized. No other valuation allowances were established for any other deferred tax assets as the Company believes it is more likely than not that its deferred tax assets will be utilized within the carryforward periods. During 2018 and 2017, the Company recorded tax expense of $10.7 million and $9.7 million, respectively, for net increases to the valuation allowance. The substantial majority of the 2018 and 2017 increase in valuation allowance was related to the state net operating losses for our parent company’s separate state filings.

At December 31, 2018, the Company had $8.8 million of unrecognized tax benefits, net of federal income tax benefit, of which $8.4 million, if fully recognized, would decrease our effective tax rate. It is reasonably possible that the Company’s unrecognized tax benefits could be reduced by as much as $4.5 million within the next twelve months as a result of settlements of certain examinations or expiration of statutes of limitations. The Company recognizes interest and penalties related to unrecognized tax benefits in income tax expense. The total amounts of interest and penalties were not material for the years ended December 31, 2018, 2017 and 2016, and as of December 31, 2018 and 2017, the Company had no material amounts accrued for interest and penalties related to unrecognized tax benefits.

A reconciliation of the beginning and ending amount of gross unrecognized tax benefits excluding interest and penalties is as follows:

	Year ended December 31,
(In thousands)	2018			2017			2016
Beginning balance	$	5,898		$	5,458		$	4,897
Increases related to prior year tax positions	4,831			1,332			4,960
Increases related to current year tax positions	—			363			377
Decreases related to prior year tax positions	—			—			(431		)
Settlements	(1,733		)	(1,255		)	—
Lapse of statute	—			—			(4,345		)
Ending balance	$	8,996		$	5,898		$	5,458

The Company’s primary tax jurisdictions are the United States, Australia and the United Kingdom. The Company or one of its subsidiaries files income tax returns in the United States federal jurisdiction and various state and foreign jurisdictions, where required. In the normal course of business, the Company is no longer subject to income tax examination after the Internal Revenue Service statute of limitations of three years. For US state tax returns, we are no longer subject to tax examination for years prior to 2012. The Internal Revenue Service is currently in the process of examining the Company’s US federal income tax returns for 2010 through 2016. The Company is currently appealing adjustments proposed by the Internal Revenue Service in connection with the 2010-2012 audits. The Company is also subject to an ongoing examination in New Zealand by Inland Revenue for calendar tax years 2013 through 2016 but no adjustments have been proposed, and the Company believes its position does not warrant a reserve.

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Financing and Other Debt

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Financing and Other Debt

15. Financing and Other Debt

The following table summarizes the Company’s total outstanding debt:

	Year ended December 31,
(In thousands)	2018			2017
Revolving line-of-credit facility under 2016 Credit Agreement (a)	$	—		$	136,535
Term loans under 2016 Credit Agreement (a)	1,745,084			1,602,875
Notes outstanding(a)	400,000			400,000
Securitized debt	106,872			126,901
Participation debt	114,849			184,990
WEX Latin America debt	16,242			9,747
Total gross debt	$	2,383,047		$	2,461,048
Current portion of gross debt	$	223,241		$	404,233
Less: Unamortized debt issuance costs	(6,724		)	(7,015		)
Short-term debt, net	$	216,517		$	397,218
Long-term gross debt	$	2,159,806		$	2,056,815
Less: Unamortized debt issuance costs	(25,883		)	(29,063		)
Long-term debt, net	$	2,133,923		$	2,027,752
Supplemental information under 2016 Credit Agreement:
Letters of credit (b)	$	53,514		$	27,500
Remaining borrowing capacity on revolving credit facility(c)	$	666,486		$	405,965

^(a) See Note 18, Fair Value, for more information regarding the Company’s 2016 Credit Agreement and Notes.

^(b) Collateral for lease agreements, virtual card and fuel payment processing activity at the Company’s foreign subsidiaries.

^(c) Contingent on maintaining compliance with the financial covenants as defined in the Company’s 2016 Credit Agreement.

2016 Credit Agreement

On July 1, 2016, the Company entered into the 2016 Credit Agreementand repaid in full all outstanding amounts under the 2014 Credit Agreement and terminated all commitments to extend further credit under the 2014 Credit Agreement. The 2016 Credit Agreement provides for secured tranche A and tranche B term loans and a secured revolving credit facility. On January 17, 2018, the Company amended certain terms of the 2016 Credit Agreement, including, increasing the outstanding amounts on the tranche B term loan by $153.0 million, reducing applicable interest rate margin for the tranche B term loan and amending certain aspects of the debt covenants. On August 24, 2018, the Company amended certain terms of the 2016 Credit Agreement, including, increasing the amount available under the revolving credit facility by $150.0 million and provided for an additional tranche A term loan in the amount of $25.0 million, reducing the applicable interest rate margin at current levels for the Company’s revolving credit and term A loans, extending the maturity date for the revolving credit facility and tranche A term loan to July 1, 2023, subject to earlier maturity as described in the amendment, and amending certain aspects of the debt covenants. After giving effect to these amendments, the 2016 Credit Agreement provides for a secured tranche A term loan in the original principal amount of $480.0 million, a secured tranche B term loan in the original principal amount of $1,335.0 million and a $720.0 million secured revolving credit facility, with a $250.0 million sublimit for letters of credit and $20.0 million sublimit for swingline loans. Under the 2016 Credit Agreement, the Company has granted a security interest in certain assets of the Company, subject to exceptions including the assets of WEX Bank.

Amounts due under the 2016 Credit Agreement mature in July 2023, subject to certain adjustments as more fully described below. Prior to maturity, amounts borrowed under the credit facility will be reduced by mandatory quarterly payments of $5.4 million and $3.4 million for tranche A and tranche B term loan facilities, respectively.

The Amounts outstanding under the 2016 Credit Agreement bear interest at variable rates, at the Company’s option, plus an applicable margin determined based on the Company’s consolidated leverage ratio. As of December 31, 2018 and 2017, amounts outstanding under the 2016 Credit Agreement bore a weighted average effective interest rate of 4.7 percent and 4.2 percent, respectively. The Company maintains interest rate swap agreements to manage the interest rate risk associated with its outstanding variable-interest rate borrowings under the 2016 Credit Agreement. See Note 12, Derivative Instruments, for further discussion. In addition, the Company has agreed to pay a quarterly commitment fee at a rate per annum ranging from 0.30% to 0.50% of the daily unused portion of the 2016 Credit Agreement (0.40% at December 31, 2018) determined based on the consolidated leverage ratio.

The 2016 Credit Agreement requires the Company to prepay outstanding term loans, subject to certain exceptions:

• solely with respect to the tranche B term loan facility, currently with 50% (subject to reduction to 25% and 0% based upon the Company’s consolidated leverage ratio) of the Company’s annual Excess Cash Flow (as defined in the 2016 Credit Agreement);

• with 100% of the net cash proceeds of certain asset sales where the proceeds exceed certain thresholds, and certain casualty and condemnation events, subject to reinvestment rights and certain other exceptions; and

• with 100% of the net cash proceeds of any incurrence or issuance of certain debt, other than debt permitted under the 2016 Credit Agreement.

The Company may voluntarily prepay outstanding loans from time to time, subject to certain conditions, without premium or penalty other than customary “breakage” costs.

The Company is required to make scheduled quarterly payments each equal to 1.25% in the case of the tranche A term loan facility, and 0.25% in the case of the tranche B term loan facility, of the principal amount of the respective term loans funded with the balance due at maturity.

The 2016 Credit Agreement, as amended, contains customary representations and warranties, as well as affirmative and negative covenants. The 2016 Credit Agreement also requires, solely for the benefit of the lenders under the tranche A term loan facility and the revolving credit facility, that the Company maintain at the end of each fiscal quarter the following financial ratios:

• a consolidated EBITDA to consolidated interest charge coverage ratio of no less than 3.00 to 1.00; and

• a consolidated funded indebtedness (excluding (i) up to an agreed amount of consolidated funded indebtedness under permitted securitization transactions and (ii) the non-recourse portion of any permitted factoring transaction) to consolidated EBITDA ratio of, no more than 4.50 to 1.00, at December 31, 2019, which ratio shall step down to 4.25 to 1.00 at December 31, 2020 and 4.0 to 1.0 at December 31, 2021 and thereafter.

Debt Covenants

The 2016 Credit Agreement and the Indenture contain covenants that limit the Company and its subsidiaries’ ability and the ability of its restricted subsidiaries and, in certain limited circumstances, WEX Bank and the Company’s other regulated subsidiaries, to (i) incur additional debt, (ii) pay dividends or make other distributions on, redeem or repurchase capital stock, or make investments or other restricted payments, (iii) enter into transactions with affiliates, (iv) dispose of assets or issue stock of restricted subsidiaries or regulated subsidiaries, (v) create liens on assets, or (vi) effect a consolidation or merger or sell all, or substantially all, of the Company’s assets. These covenants are subject to important exceptions and qualifications. At any time that the Notes are rated investment grade, which is not currently the case, and subject to certain conditions, certain covenants will be suspended with respect to the Notes. WEX Bank and the Company’s other regulated subsidiaries will not be subject to some of the restrictive covenants in the Indenture that place limitations on the Company and its restricted subsidiaries’ actions, and where WEX Bank and the Company’s regulated subsidiaries are subject to covenants, there are significant exceptions and limitations on the application of those covenants to WEX Bank and the Company’s regulated subsidiaries.

Notes Outstanding

On January 30, 2013, the Company completed a $400.0 million offering in an aggregate principal amount of 4.750 percent senior notes at an issue price of 100.0 percent of the principal amount, plus accrued interest, from January 30, 2013. The Notes were issued pursuant to the Indenture.

The Notes are guaranteed on a senior secured basis by each of the Company’s restricted subsidiaries and each of the Company’s regulated subsidiaries that guaranteed the Company’s 2013 Credit Agreement. WEX Bank, is not a guarantor and is not subject to many of the restrictive covenants in the indenture governing the Notes. The Notes and guarantees described above are general senior secured obligations ranking equally with the Company’s existing and future senior debt, senior in right of payment to all of the Company’s subordinated debt, and effectively equal in lien priority to the Company’s 2016 Credit Agreement. In addition, the Notes and the guarantees are structurally subordinated to all liabilities of the Company’s subsidiaries that are not guarantors, including WEX Bank.

The Company may redeem the Notes at any time, in whole or in part, at the following redemption prices (expressed as a percentage of principal amount of the Notes) if redeemed during the twelve month period beginning on February 1 of the following years: (i) 101.583 percent in 2019, (ii) 100.792 percent in 2020, and (iii) 100.0 percent in 2021 and thereafter; plus, in each case, accrued and unpaid interest, if any, up to the date of redemption. Upon the occurrence of a change of control of the Company (as described in the Indenture), the Company must offer to repurchase the Notes at 101 percent of the principal amount of the Notes, plus accrued and unpaid interest, if any, up to the date of repurchase.

The Notes will mature on February 1, 2023, and interest will accrue at the rate of 4.750 percent per annum. Interest is payable semiannually in arrears on February 1 and August 1 of each year.

Debt Issuance Costs

The Company accounted for the January 2018 repricing as both a debt extinguishment and debt modification. As part of this repricing, the Company recorded a loss on extinguishment of debt of $1.1 million related to the write-off of unamortized debt issuance costs. The Company incurred general and administrative expenses of $3.8 million related to third-party costs associated with the January 2018 and August 2018 repricings. The loss on extinguishment and third-party costs are reflected as financing interest expense and general and administrative expenses, respectively, within our consolidated statements of income. In addition, the Company incurred and capitalized $5.8 million of new debt issuance costs related to the January 2018 and August 2018 repricings. Debt issuance costs are being amortized into interest expense over the 2016 Credit Agreement’s term using the effective interest method for the tranche A and B term loans and the revolver.

In January 2016, the Company began to incur ticking fees for the debt financing commitment in anticipation of the then pending acquisition of EFS. Total ticking fees expensed to financing interest were $30.0 million for the year ended December 31, 2016. In conjunction with the continued negotiation of the Company’s 2016 Credit Agreement, the amount of ticking fees paid at the time of closing was reduced by $7.9 million to $22.2 million. The excess ticking fees were reflected as a reduction of the debt issuance costs related to the 2016 Credit Agreement and are amortized over the 2016 Credit Agreement’s term using the effective interest method for the tranche A and B term loans and the revolver.

Australian Securitization Facility

The Company maintains a securitized debt agreement with the Bank of Tokyo-Mitsubishi UFJ, Ltd., which expires April 2019. Under the terms of the agreement, each month, on a revolving basis, the Company sells certain of its Australian receivables to the Company’s Australian Securitization Subsidiary. The Australian Securitization Subsidiary, in turn, uses the receivables as collateral to issue asset-backed commercial paper (“securitized debt”) for approximately 85 percent of the securitized receivables. The amount collected on the securitized receivables is restricted to pay the securitized debt and is not available for general corporate purposes.

The Company pays a variable interest rate on the outstanding balance of the securitized debt, based on the Australian Bank Bill Rate plus an applicable margin. The interest rate was 2.89 percent and 2.53 percent as of December 31, 2018 and 2017, respectively. The Company had securitized debt under this facility of approximately $87.0 million and $90.0 million as of December 31, 2018 and 2017, respectively.

European Securitization Facility

On April 7, 2016, the Company entered into a five year securitized debt agreement with the Bank of Tokyo-Mitsubishi UFJ, Ltd. Under the terms of the agreement, the Company sells certain of its receivables from selected European countries to its European Securitization Subsidiary. The European Securitization Subsidiary, in turn, uses the receivables as collateral to issue securitized debt. The amount collected on the securitized receivables is restricted to pay the securitized debt and is not available for general corporate purposes. The amounts of receivables to be securitized under this agreement is determined by management on a monthly basis. The interest rate was 0.98 percent and 1.11 percent as of December 31, 2018 and 2017, respectively. The Company had securitized debt under this facility of approximately $18.0 million and $17.9 million as of December 31, 2018 and 2017, respectively.

Participation Debt

Historically, WEX Bank maintained three separate participation agreements with third-party banks to fund customer balances that exceeded WEX Bank’s lending limit to an individual customer. In June 2018, WEX Bank entered into a fourth participation agreement with a third-party bank to fund an additional customer’s balance. Associated unsecured borrowings carry a variable interest rate of 1 month to 3 month LIBOR plus a margin of 225 basis points. The Company had funding capacity of $180.0 million at December 31, 2018 under these agreements, which terminate on June 30, 2019, August 31, 2019 and on demand. Amounts outstanding under the participation agreements were $64.8 million and $50.0 million and recorded in short-term debt, net and long-term debt, net, respectively, as of December 31, 2018. Amounts outstanding under the participation agreements were $135.0 million and $50.0 million and recorded in short-term debt, net and long-term debt, net, respectively, as of December 31, 2017. The average interest rate on outstanding participation debt was 4.30 percent, 3.46 percent and 2.94 percent for the year ended December 31, 2018, 2017 and 2016, respectively.

WEX Latin America Debt

WEX Latin America had debt of approximately $16.2 million and $9.7 million as of December 31, 2018 and 2017, respectively. This is comprised of credit facilities and loan arrangements related to our accounts receivable. These borrowings are recorded in short-term debt, net on the Company’s consolidated balance sheet. As of December 31, 2018 and 2017, the interest rate was 23.59% and 24.10%, respectively.

Other

As of December 31, 2018, WEX Bank pledged approximately $343.1 million of fleet receivables held by WEX Bank to the Federal Reserve Bank as collateral for potential borrowings, throughthe Federal Reserve Bank Discount Window. Amounts that can be borrowed are based on the amount of collateral pledged to the Federal Reserve Bank and were $307.4 million as of December 31, 2018. WEX Bank had no borrowings on this line of credit through the Federal Reserve Bank Discount Window as of December 31, 2018. The average interest rate on borrowed federal funds was 2.15 percent, 1.24 percent and 0.69 percent for the year ended December 31, 2018, 2017 and 2016, respectively.

Debt Commitments

The table below summarizes the Company’s annual principal payments on its total debt for each of the next five years:

2019	$	223,241
2020	$	85,278
2021	$	35,278
2022	$	35,278
2023	$	2,003,972

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Tax Receivable Agreement

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Tax Receivable Agreement

16. Tax Receivable Agreement

As a consequence of the Company’s separation from its former parent company in 2005, the tax basis of the Company’s net tangible and intangible assets increased (the “Tax Basis Increase”). The Tax Basis Increase reduced the amount of tax that the Company would pay in the future to the extent the Company generated taxable income in sufficient amounts. The Company was contractually obligated, pursuant to its 2005 Tax Receivable Agreement with the Company’s former parent company (Cendant Corporation), to remit 85 percent of any such cash savings.

Pursuant to the Separation and Distribution Agreement dated as of July 27, 2006, by and among Cendant Corporation (now known as Avis Budget Group, Inc. or “Avis”), Realogy Corporation (“Realogy”), Wyndham Worldwide Corporation (“Wyndham”) and Travelport Inc., Realogy acquired from Cendant the right to receive 62.5 percent of the payments by WEX Inc. to Cendant and Wyndham acquired from Cendant the right to receive 37.5 percent of the payments by WEX Inc. to Cendant under the 2005 Tax Receivable Agreement.

On June 26, 2009, the Company entered into a Tax Receivable Prepayment Agreement with Realogy, pursuant to which the Company paid Realogy $51.0 million, net of bank fees and legal expenses, as prepayment in full to settle the remaining obligations to Realogy under the 2005 Tax Receivable Agreement. In connection with the Tax Receivable Prepayment Agreement with Realogy, the Company entered into a Ratification Agreement on June 26, 2009 (the “Ratification Agreement”) with Avis, Realogy and Wyndham which amended the 2005 Tax Receivable Agreement to require the Company to pay 31.875 percent of the future tax savings related to the Tax Basis Increase to Wyndham.

The estimated amount of future payments owed to Wyndham is reflected as accrued expenses and other liabilities on the consolidated balance sheets for a total liability of $13.6 million and $20.3 million at December 31, 2018 and 2017 respectively. The estimate is dependent upon future statutory tax rates and the Company’s ability to generate sufficient taxable income adequate to cover the tax depreciation, amortization and interest expense associated with the Tax Basis Increase. Estimated blended tax rates are impacted by a number of factors including tax law changes, statutory tax rate changes, state apportionment and state filing combinations. The Company regularly reviews its estimated blended tax rates and projections of future taxable earnings to determine whether changes in the estimated liability are required. Any changes to the estimated future payments due to changes in estimated blended tax rates are recorded in the consolidated statements of income as non-cash adjustments related to tax receivable agreement.

There has been a reassessment of the projected blended tax rates for each period presented. For the year ended December 31, 2018, the net future benefits increased, which increased the associated liability to Wyndham, resulting in a charge to non-operating expense of $0.8 million. In addition, the liability decreased due to payments of $7.5 million made during the year ended December 31, 2018. For the year ended December 31, 2017, the net future benefits decreased, primarily as a result of the decline in Federal statutory tax rate as part of the 2017 Tax Act, which decreased the associated liability to Wyndham, resulting in an off-set of $15.3 million to non-operating expense. In addition, the liability decreased due to payments of $11.8 million made during the year ended December 31, 2017. For the year ended December 31, 2016, the net future benefits increased, which increased the associated liability to Wyndham, resulting in a charge to non-operating expense of $0.6 million.

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Employee Benefit Plans

12 Months Ended

Dec. 31, 2018

Retirement Benefits [Abstract]

Employee Benefit Plans

17. Employee Benefit Plans

The Company sponsors a 401(k) retirement and savings plan for U.S. employees. Eligible employees may participate in the plan immediately. The Company’s employees who are at least 18 years of age and have completed one year of service are eligible for Company matching contributions in the plan. The Company matches 100 percent of each employee’s contributions up to a maximum of 6 percent of each employee’s eligible compensation. All contributions vest immediately. WEX has the right to discontinue the plan at any time. Contributions to the plan are voluntary. The Company contributed $8.0 million, $6.7 million and $5.3 million in matching funds to the plan for the years ended December 31, 2018, 2017 and 2016, respectively.

During 2016, the Company acquired EFS, which as of the date of the acquisition had its own employee savings plan (the “EFS Plan”). On February 1, 2017, the WEX plan received net assets available for benefits totaling $15.2 million in a transfer from the EFS Plan. On January 1, 2017, EFS employees became eligible to participate in the existing WEX plan.

The Company also sponsors defined contribution plans for certain employees designated by the Company. Participants may elect to defer receipt of designated percentages or amounts of their compensation. The Company maintains a grantor’s trust to hold the assets under the Company’s defined contribution plans. The obligations related to the defined contribution plans totaled $6.4 million and $6.8 million at December 31, 2018 and 2017, respectively, and are included in other current liabilities and other liabilities on the consolidated balance sheets. The assets held in trust are recorded at fair value with any changes recorded currently to earnings. The aggregate market value of the securities within the trust was $6.4 million and $6.8 million at December 31, 2018 and 2017, respectively, and are included in prepaid expenses and other current assets and other assets on the consolidated balance sheets.

The Company has defined benefit pension plans in Germany and Norway. The total net unfunded status for the Company’s foreign defined benefit pension plans was $5.4 million and $0.3 million as of December 31, 2018 and 2017, respectively. These obligations are recorded in other current liabilities and other liabilities in the consolidated balance sheets. The Company measures these plan obligations on an annual basis. The change in fair value to the defined benefit pension plans is recorded through the consolidated statements of income. The expense under each of these defined benefit pension plans for 2018, 2017 and 2016 was not material to the consolidated financial statements.

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Fair Value

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Fair Value

18. Fair Value

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following table presents the Company’s financial instruments measured at fair value and the related hierarchy levels:

		December 31,
(In thousands)	Fair Value Hierarchy	2018		2017
Financial Assets:
Money market funds(a)	1	$	71,228	$	—
Investment securities
Municipal bonds	2	$	404	$	534
Asset-backed securities	2	279		345
Mortgage-backed securities	2	260		305
Fixed-income mutual fund	1	23,463		22,174
Total Investment securities		$	24,406	$	23,358
Executive deferred compensation plan trust(b)	1	$	6,398	$	6,798
Interest rate swaps(c)	2	$	17,994	$	19,595
Liabilities:
Interest rate swaps(d)	2	$	—	$	5,373

^(a) The fair value is recorded in cash and cash equivalents.

^(b) The fair value is recorded in prepaid expenses and other current assets and other assets based on the timing of payments obligations.

^(c) The fair value is recorded in prepaid expenses and other current assets or other assets depending on the timing of expected discounted cash flows.

^(d) The fair value is recorded in other current liabilities based on the timing of expected discounted cash flows.

We did not have any transfers between Level 1 and Level 2 of the fair value hierarchy during either of the years ended December 31, 2018 and 2017. See Note 1, Summary of Significant Accounting Policies, for a description of the levels of the fair value hierarchy.

Money Market Funds

A portion of the Company’s cash and cash equivalents are invested in a money market fund that primarily consists of short-term government securities, which are classified as Level 1 in the fair value hierarchy because they are valued using quoted market prices in an active market.

Investment Securities

When available, the Company uses quoted market prices to determine the fair value of investment securities; such inputs are classified as Level 1 of the fair-value hierarchy. These securities primarily consist of an open-ended mutual fund which is invested in fixed-income securities and is held in order to satisfy the regulatory requirements of WEX Bank. For mortgage-backed and asset-backed debt securities and municipal bonds, the Company generally uses quoted prices for recent trading activity of assets with similar characteristics to the debt security or bond being valued. The securities and bonds priced using such methods are generally valued using Level 2 inputs.

Executive Deferred Compensation Plan Trust

The investments held in the executive deferred compensation plan trust are classified as Level 1 in the fair value hierarchy because the fair value is determined using quoted prices for identical instruments in active markets.

Interest Rate Swaps

The Company determines the fair value of its interest rate swaps based on the discounted cash flows of the difference between the projected fixed payments on the swaps and the implied floating payments using the current LIBOR curve, which are Level 2 inputs of the fair value hierarchy.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

Notes Outstanding

The Notes outstanding had a fair value of $392.0 million and $410.0 million as of December 31, 2018 and December 31, 2017, respectively. The fair value of the notes is based on market rates for the issuance of our debt and is classified as Level 2 in the fair value hierarchy.

2016 Credit Agreement

The Company determines the fair value of the amount outstanding under its 2016 Credit Agreement based on the market rates for the issuance of the Company’s debt which are Level 2 inputs in the fair value hierarchy. As of both December 31, 2018 and 2017, the carrying value of the 2016 Credit Agreement approximated its fair value.

Other Assets and Liabilities

Our financial instruments, other than those presented above, include cash and cash equivalents, accounts receivable, accounts payable, accrued expenses and other liabilities. The carrying values of such assets and liabilities approximate their respective fair values due to their short-term nature. The carrying values of certificates of deposit, interest-bearing brokered money market deposits, securitized debt, participation debt and borrowed federal funds approximate their respective fair values, as the interest rates on these financial instruments are variable market-based rates. All other financial instruments are reflected at fair value on the consolidated balance sheets.

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Commitments and Contingencies

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

19. Commitments and Contingencies

Litigation

The Company is subject to legal proceedings and claims in the ordinary course of business. As of the date of this filing, the current estimate of a reasonably possible loss contingency from all legal proceedings is not material to the Company’s consolidated financial position, results of operations, cash flows or liquidity.    

Operating Leases

The Company leases office space and equipment under non-cancelable operating lease agreements that expire at various dates through 2034. In addition, the Company rents office equipment under agreements that may be canceled at any time. Rental expense related to office space, equipment and vehicles amounted to $15.7 million, $15.5 million and $15.1 million for the years ended December 31, 2018, 2017 and 2016, respectively.

Future minimum lease payments under non-cancelable operating leases are as follows:

2019	$	14,794
2020	16,020
2021	15,186
2022	14,103
2023	11,706
Thereafter	65,628
Total minimum lease payments	$	137,437

Extension of Credit to Customers

We have entered into commitments to extend credit in the ordinary course of business. We had approximately $7.0 billion of unused commitments to extend credit at December 31, 2018, as part of established customer agreements. These amounts may increase or decrease during 2019 as we increase or decrease credit to customers, subject to appropriate credit reviews, as part of our lending product agreements. Many of these commitments are not expected to be utilized. We can adjust most of our customers’ credit lines at our discretion at any time. Therefore, we do not believe total unused credit available to customers and customers of strategic relationships represents future cash requirements.

Minimum Volume Purchase Commitments

One of the Company’s subsidiaries is required to purchase a minimum amount of fuel from suppliers on an annual basis through 2024. Should the Company fail to meet these minimum volume commitments, a penalty will be assessed as defined under the contracts. Starting in 2020, annual volume commitments reset based on prior year volume purchased. If the Company does not purchase fuel under these commitments after December 31, 2018, it would incur total penalties through 2019 totaling $170.5 million. During the years ended December 31, 2018 and 2017, the Company incurred $1.6 million and $1.2 million, respectively, in shortfall penalties under these contracts. The Company considers the associated risk of loss to be remote based on current operations.

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Dividend Restrictions

12 Months Ended

Dec. 31, 2018

Disclosure of Restrictions on Dividends, Loans and Advances Disclosure [Abstract]

Dividend Restrictions

20. Dividend Restrictions

The Company has certain restrictions on the dividends it may pay, including those under the 2016 Credit Agreement. The 2016 Credit Agreement does allow us to make certain restricted payments (including dividends) if we are able to demonstrate pro forma compliance, after execution of a restricted payment, with a ratio of consolidated funded indebtedness to consolidated EBITDA of no more than 2.50:1.00 for the most recent period of four fiscal quarters. Additionally, if the Company’s interest coverage ratio is less than 3.00 to 1.00 and the Company’s leverage ratio does not exceed 5.00 through September 30, 2019, 4.50 through September 30, 2020, 4.25 through September 30, 2021 and 4.00 from December 31, 2021 and thereafter, after execution of a restricted payment, the Company may pay $50 million per annum for restricted payments, including dividends, of which 100% of unused amounts may be carried over into subsequent years. The Company has not declared any dividends on its common stock since it commenced trading on the NYSE on February 16, 2005.

Dividends paid by WEX Bank have provided a substantial part of the Company’s operating funds and for the foreseeable future it is anticipated that dividends paid by WEX Bank will continue to be a source of operating funds to the Company. Capital adequacy requirements serve to limit the amount of dividends that may be paid by WEX Bank. WEX Bank is chartered under the laws of the State of Utah and the FDIC insures its deposits. Under Utah law, WEX Bank may only pay a dividend out of net profits after it has (i) provided for all expenses, losses, interest and taxes accrued or due from WEX Bank and (ii) transferred to a surplus fund 10 percent of its net profits before dividends for the period covered by the dividend, until the surplus reaches 100 percent of its capital stock. For purposes of these Utah dividend limitations, WEX Bank’s capital stock is $5.3 million and its capital surplus exceeds 100 percent of capital stock.

Under FDIC regulations, WEX Bank may not pay any dividend if, following the payment of the dividend, WEX Bank would be “undercapitalized,” as defined under the Federal Deposit Insurance Act and applicable regulations. The FDIC also has the authority to prohibit WEX Bank from engaging in business practices that the FDIC considers to be unsafe or unsound, which, depending on the financial condition of WEX Bank, could include the payment of dividends.

WEX Bank complied with the aforementioned dividend restrictions for each of the years ended December 31, 2018, 2017 and 2016.

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Stock-Based Compensation

12 Months Ended

Dec. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation

21. Stock-Based Compensation

In 2010, the Company adopted the WEX Inc. 2010 Equity Incentive Plan (the “Plan”), which replaced the Company’s 2005 Equity and Incentive Plan. In May 2015, the Company adopted the 2015 Section 162(m) Performance Incentive Plan (collectively with the Plan, the “Plans”). The Plans, which are stockholder-approved, permit the grant of stock options, stock appreciation rights, restricted stock, restricted stock units and other stock-based or cash-based awards to non-employee directors, officers, employees, advisors or consultants. The Plans permit the Company to grant a total number of shares which is the sum of; (i) 3,800 shares of common stock; plus (ii) such additional number of shares of common stock (up to 1,596) that were reserved for issuance under the Company’s Amended and Restated 2005 Equity and Incentive Plan (the “Prior Plan”) that remained available for grant under the Prior Plan at the time the 2010 Plan was adopted. There were 1.1 million units of common stock available for grant for future equity compensation awards under the Plan at December 31, 2018.

As of December 31, 2018, the Company had four stock-based compensation award types, which are described below. The compensation cost that has been charged against income for these programs totals $33.9 million, $30.5 million and $19.7 million for 2018, 2017 and 2016, respectively. The associated tax benefit related to these costs was $8.0 million, $7.3 million and $7.2 million, for 2018, 2017 and 2016, respectively.

Restricted Stock Units

The Company periodically grants RSUs, a right to receive a specific number of shares of the Company’s common stock at a specified date, to non-employee directors and certain employees. RSUs granted to non-employee directors vest 12 months from the date of grant, or upon termination of board service if the director elects to defer receipt. RSUs issued to certain employees generally vest evenly over up to three years and provide for accelerated vesting if there is a change of control (as defined in the Plan). The fair value of each RSU award is based on the closing market price of the Company’s stock on the day of grant as reported by the NYSE.

The following is a summary of RSU activity during the year ended December 31, 2018:

Restricted Stock Units
(In thousands except per share data)	Units		Weighted-Average Grant-Date Fair Value
Unvested at January 1, 2018	173		$	98.31
Granted	101		165.88
Vested, including 29 shares withheld for tax (a)	(94	)	98.07
Forfeited	(13	)	110.81
Unvested at December 31, 2018	167		$	138.58

^(a)The Company withholds shares of common stock to pay the minimum required statutory taxes due upon RSU vesting. Cash is then remitted by the Company to the appropriate taxing authority.

As of December 31, 2018, there was $15.6 million of total unrecognized compensation cost related to RSUs. That cost is expected to be recognized over a weighted-average period of 1.8 years. The total grant-date fair value of RSUs granted was $16.8 million, $11.7 million and $18.8 million during 2018, 2017 and 2016, respectively. The total fair value of RSUs that vested during 2018, 2017 and 2016 was $9.2 million, $7.3 million and $3.6 million, respectively.

Performance-Based Restricted Stock Units

The Company periodically grants PBRSUs to employees. A PBRSU is a right to receive stock based on the achievement of both performance goals and continued employment during the vesting period. In a PBRSU, the number of shares earned varies based upon meeting certain performance goals. PBRSU awards generally have performance goals spanning one to three years, depending on the nature of the performance goal. The fair value of each PBRSU award is based on the closing market price of the Company’s stock on the grant date as reported by the NYSE.

The following is a summary of PBRSU activity during the year ended December 31, 2018:

Performance-Based Restricted Stock Units
(In thousands except per share data)	Shares		Weighted-Average Grant-Date Fair Value
Unvested at January 1, 2018	314		$	93.18
Granted	115		158.77
Forfeited	(45	)	96.47
Vested, including 48 shares withheld for tax (a)	(140	)	85.58
Performance adjustment (b)	175		88.99
Unvested at December 31, 2018	419		$	113.58

^(a)The Company withholds shares of common stock to pay the minimum required statutory taxes due upon PBRSU vesting. Cash is then remitted by the Company to the appropriate taxing authority.

^(b) Reflects adjustments to the number of shares of PBRSUs expected to vest based on the change in performance attainment during the year ended December 31, 2018.

As of December 31, 2018, there was $31.9 million of unrecognized compensation cost related to the PBRSUs that is expected to be recognized over a weighted-average period of 1.8 years. The total grant-date fair value of PBRSUs granted during 2018, 2017 and 2016 was $18.3 million, $15.0 million and $15.9 million, respectively. The total fair value of PBRSUs that vested during 2018, 2017 and 2016 was $12.0 million, $15.9 million and $4.9 million, respectively.

Stock Options

Market Performance-Based Stock Options

In May 2017, the Company granted market performance-based stock options with a contractual term of ten years to certain members of senior management. The options contain a market condition that begins operating on the third anniversary of the grant date, requiring the closing price of the Company’s stock to meet or exceed certain price thresholds for twenty consecutive trading days (“Stock Price Hurdle”) in order for shares to vest. In addition, award recipients must be continually employed from the grant date until such date that the Stock Price Hurdle is satisfied in order for shares to vest. To the extent both the service condition and the Stock Price Hurdles are not met by the end of a defined measurement period, these options will be canceled.

The grant date fair value of these options was estimated on the date of the grant using a Monte-Carlo simulation model used to simulate a distribution of future stock price paths based on historical volatility levels.

The table below summarizes the assumptions used to calculate the fair value:    

Exercise price	$	99.69
Expected stock price volatility	31.14		%
Risk-free interest rate	2.18		%
Weighted average fair value of performance options granted	$	28.69

The Company expenses these options on a graded basis over the derived service period of approximately three years regardless of whether the market condition is satisfied. Upon satisfaction of a Stock Price Hurdle, any unrecognized compensation expense for that specific tranche will be accelerated.

Service-Based Stock Options

Stock options granted to certain officers and employees under the Plan generally become exercisable over three years (with approximately 33 percent of the total grant vesting each year on the anniversary of the grant date) and expire 10 years from the date of grant.

Based on the Company’s lack of historical option exercise experience and granting of stock options with “plain vanilla” characteristics, the Company uses the simplified method to estimate the expected term of its employee stock options. The fair value of each option award is estimated on the grant date using the following assumptions and a Black-Scholes-Merton option-pricing model. The expected term assumption as it relates to the valuation of the options represents the period of time that options granted are expected to be outstanding. The Company estimates expected stock price volatility based on historical volatility of the Company’s common stock over a period matching the expected term of the options granted. The option-pricing model also includes a risk-free interest rate for the period matching the expected term of the option and is based on the U.S. Treasury yield curve in effect at the time of the grant. We have never paid nor do we expect to pay any cash dividends on our common stock; therefore, we assume that no dividends will be paid over the expected terms of option awards. 

The table below summarizes the assumptions used to calculate the fair value by year of grant:

	2018			2017			2016
Weighted average expected term (in years)	6.0			6.0			6.0
Weighted average exercise price	$	158.23		$	104.95		$	77.20
Expected stock price volatility	27.35		%	30.67		%	31.93		%
Risk-free interest rate	2.69		%	2.13		%	1.62		%
Weighted average fair value	$	51.27		$	35.58		$	26.14

The following is a summary of all stock option activity during the year ended December 31, 2018:

Stock Options
(In thousands, except per share data)	Shares		Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding at January 1, 2018	834		$	97.70
Granted	101		158.23
Exercised	(25	)	91.85
Forfeited or expired	(19	)	103.55
Outstanding at December 31, 2018	891		$	104.62	8.23	$	33,362
Exercisable on December 31, 2018	132		$	91.76	7.24	$	6,379
Vested and expected to vest at December 31, 2018	754		$	106.60	8.40	$	26,947

As of December 31, 2018, there was $13.0 million of total unrecognized compensation cost related to options. That cost is expected to be recognized over a weighted-average period of 1.5 years. The total intrinsic value of options exercised during the years ended December 31, 2018, 2017 and 2016 was $1.9 million, $0.6 million and $1.7 million, respectively. The total grant-date fair value of options granted during 2018, 2017 and 2016 was $5.2 million, $20.5 million, and $3.3 million, respectively.

Deferred Stock Units

Non-employee directors may elect to defer their cash fees and RSUs in the form of deferred stock units (“DSUs”). The Company previously granted fully vested DSUs to non-employee directors. These awards are distributed as common stock 200 days immediately following the date upon which such director’s service as a member of the Company’s Board of Directors terminates for any reason. There were approximately 74 and 94 DSUs outstanding as of December 31, 2018 and 2017 respectively. Unvested DSUs as of December 31, 2018 and 2017 were not material.

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Impairment and Restructuring Activities

12 Months Ended

Dec. 31, 2018

Restructuring and Related Activities [Abstract]

Impairment and Restructuring Activities

22. Impairment and Restructuring Activities

Impairment Charges and Asset Write-Offs

As part of our annual goodwill assessment completed in the fourth quarter of 2018, we recorded a non-cash goodwill impairment charge of $3.2 million related to our Brazil fleet reporting unit. See Note 9, Goodwill and Other Intangible Assets, of our consolidated financial statements for more information. We also impaired $2.4 million of computer software which was determined to provide no future benefit in 2018.

Following the acquisition of AOC in the fourth quarter of 2017, the Company reevaluated software currently under development for payment processing within our Travel and Corporate Solutions segment. From this, we determined the developed technology obtained in the AOC acquisition more closely aligns with our technological strategy. As a result, $22.0 million of software under development was determined to have no future benefit and therefore impaired during the year ended December 31, 2017. We also impaired $6.0 million of computer software within the Fleet Solutions segment in 2017 as a result of our ongoing platform consolidation strategy, designed to ensure we continue to deliver superior technology to our customers.

During the year ended December 31, 2017, the Company executed a vendor contract amendment based on a strategic decision to in-source certain previously outsourced technology functions. As a result of this action, the Company determined that $16.2 million of prepaid services had no future benefit and were therefore written off within the Fleet Solutions and Travel and Corporate Solutions segments during the same period.

The Company did not recognize any impairment expense on assets during the year ended December 31, 2016.

Restructuring

In the first quarter of 2015, the Company commenced a restructuring initiative (the “2015 Restructuring Initiative”) as a result of its global review of operations. The review of operations identified certain initiatives to further streamline the business, improve the Company’s efficiency and globalize the Company’s operations, all with an objective to improve scale and increase profitability going forward. The Company continued its efforts to improve its overall operational efficiency and began a second restructuring initiative (the “2016 Restructuring Initiative”) during the second quarter of 2016. In connection with the EFS acquisition, the Company initiated a third restructuring program in the third quarter of 2016 (the “Acquisition Integration Restructuring Initiative”). The majority of the balances under these initiatives are expected to be paid through 2019.

The restructuring expenses related to these initiatives primarily consist of employee costs and office closure costs directly associated with the respective programs. The Company has determined the amount of expenses related to these initiatives is probable and reasonably estimable. As such, the Company has recorded the impact on the consolidated statements of income and in accrued expenses and other current liabilities on the consolidated balance sheets. Restructuring charges incurred to date under these initiatives were $24.8 million as of December 31, 2018. Based on current plans, which are subject to change, the amount of additional restructuring costs that the Company expects to incur under these initiatives is immaterial.

The following tables present the Company’s restructuring activities by initiative:

2015 Restructuring Initiative	Year Ended December 31,
(In thousands)	2018			2017
Balance, beginning of year	$	2,680		$	5,231
Restructuring (reversals) charges1	(79		)	2,565
Cash paid	(1,734		)	(4,020		)
Other2	(511		)	(1,158		)
Foreign currency translation	(27		)	62
Balance, end of year	$	329		$	2,680

¹ Primarily consists of employee costs in 2017.

² In 2017, the liability was transferred to the 2016 Restructuring Initiative.

2016 Restructuring Initiative	Year Ended December 31,
(In thousands)	2018			2017
Balance, beginning of year	$	738		$	3,662
Restructuring (reversals) charges	111			(1,305		)
Cash paid	(592		)	(3,479		)
Other1	—			1,158
Foreign currency translation	(7		)	702
Balance, end of year	$	250		$	738

¹ In 2017, the liability was transferred from the 2015 Restructuring Initiative.

Acquisition Integration Restructuring Initiative	Year Ended December 31,
(In thousands)	2018			2017
Balance, beginning of year	$	5,093		$	1,764
Restructuring charges1	240			5,879
Cash paid	(5,355		)	(2,650		)
Other	22			107
Foreign currency translation	—			(7		)
Balance, end of year	$	—		$	5,093

¹Primarily consists of office closure costs in 2017.

Total Restructuring Initiatives	Year Ended December 31,
(In thousands)	2018			2017
Balance, beginning of year	$	8,511		$	10,657
Restructuring charges	272			7,139
Cash paid	(7,681		)	(10,149		)
Other	(489		)	107
Foreign currency translation	(34		)	757
Balance, end of year	$	579		$	8,511

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Segment Information

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Segment Information

23. Segment Information

The Company determines its operating segments and reports segment information in accordance with how the Company’s chief operating decision maker (“CODM”) allocates resources and assesses performance. The Company’s CODM is its Chief Executive Officer. The operating segments are aggregated into the three reportable segments described below.    

• Fleet Solutions provides customers with payment and transaction processing services specifically designed for the needs of commercial and government fleets. This segment also provides information management services to these fleet customers.

• Travel and Corporate Solutions focuses on the complex payment environment of business-to-business payments, providing customers with payment processing solutions for their corporate payment and transaction monitoring needs.

• Health and Employee Benefit Solutions provides healthcare payment products and SaaS consumer directed platforms, as well as payroll related benefits to customers.

The following tables disaggregate our consolidated revenue:

	Year Ended December 31, 2018
(in thousands)	Fleet Solutions		Travel and Corporate Solutions		Health and Employee Benefit Solutions		Total
Payment processing revenue	$	464,980	$	203,289	$	55,722	$	723,991
Account servicing revenue	162,662		37,262		108,172		308,096
Finance fee revenue	190,528		1,391		16,708		208,627
Other revenue	156,970		61,402		33,553		251,925
Total revenues	$	975,140	$	303,344	$	214,155	$	1,492,639
Interest income	$	3,503	$	958	$	11,706	$	16,167

	Year Ended December 31, 2017
(In thousands)	Fleet Solutions		Travel and Corporate Solutions		Health and Employee Benefit Solutions		Total
Payment processing revenue	$	360,158	$	158,660	$	50,348	$	569,166
Account servicing revenue	165,083		7,531		103,956		276,570
Finance fee revenue	159,336		760		28,696		188,792
Other revenue	138,533		57,096		18,420		214,049
Total revenues	$	823,110	$	224,047	$	201,420	$	1,248,577
Interest income	$	3,681	$	717	$	27,507	$	31,905

	Year Ended December 31, 2016
(In thousands)	Fleet Solutions		Travel and Corporate Solutions		Health and Employee Benefit Solutions		Total
Payment processing revenue	$	297,900	$	175,762	$	46,957	$	520,619
Account servicing revenue	127,105		1,247		82,660		211,012
Finance fee revenue	124,725		643		7,600		132,968
Other revenue	92,331		37,595		17,963		147,889
Total revenues	$	642,061	$	215,247	$	155,180	$	1,012,488
Interest income	$	3,053	$	498	$	13,581	$	17,132

No one customer accounted for more than 10 percent of the total consolidated revenue in 2018, 2017 or 2016.    

Effective January 1, 2018, the Company modified the presentation of the statements of income and changed how it allocates certain costs to its segments. These changes enhance the information reported to the users of our quarterly and annual filings. The primary change is how the Company allocates information technology and corporate-related costs to its segments. Certain information technology and corporate-related costs that support multiple segments, which were previously included entirely within the Fleet Solutions segment, are now allocated to the segment that they support. Certain residual unallocated corporate costs represent the portion of expenses relating to general corporate functions including acquisition expenses, certain finance, legal, information technology, human resources, administrative and executive expenses and other expenses. These expenses are recorded in unallocated corporate expenses, as these items are centrally and directly controlled and are not included in internal measures of segment operating performance. Prior period amounts have been recast to conform with this presentation. See Note 1, Summary of Significant Accounting Policies, for further information regarding the modified presentation of the consolidated statements of income.

The CODM evaluates the financial performance of each segment using segment adjusted operating income, which excludes: (i) acquisition and divestiture related items (including acquisition-related intangible amortization); (ii) stock-based compensation; (iii) restructuring and other costs; (iv) gains on divestitures; (v) debt restructuring costs; (vi) impairment charges and asset write-offs and (vii) unallocated corporate expenses. For the year ended December 31, 2016, segment adjusted operating income also excluded a vendor settlement. Additionally, we do not allocate foreign currency gains and losses, financing interest expense, unrealized and realized gains and losses on derivative instruments, income taxes and net gains or losses from non-controlling interest to our operating segments.

The following table reconciles segment adjusted operating income to income before income taxes:

	Year ended December 31,
(In thousands)	2018			2017			2016
Segment adjusted operating income
Fleet Solutions	$	459,646		$	369,872		$	254,225
Travel and Corporate Solutions	135,379			96,660			80,699
Health and Employee Benefit Solutions	44,931			46,846			37,745
Total segment adjusted operating income	$	639,956		$	513,378		$	372,669
Reconciliation:
Total segment adjusted operating income	$	639,956		$	513,378		$	372,669
Less:
Unallocated corporate expenses	58,095			53,753			46,199
Acquisition-related intangible amortization	138,186			153,810			97,829
Other acquisition and divestiture related items	4,143			5,000			20,879
Debt restructuring	4,425			2,563			—
Stock-based compensation	35,103			30,487			19,742
Restructuring and other costs	13,717			11,129			13,995
Impairment charges and asset write-offs	5,649			44,171			—
Gain on divestiture	—			(20,958		)	—
Vendor settlement	—			—			15,500
Operating income	$	380,638		$	233,423		$	158,525
Financing interest expense	(105,023		)	(107,067		)	(113,418		)
Net foreign currency (loss) gain	(38,800		)	31,487			(9,233		)
Net realized and unrealized gains on fuel price derivatives	—			—			711
Non-cash adjustments related to tax receivable agreement	(775		)	15,259			(563		)
Net unrealized gains on financial instruments	2,579			1,314			12,908
Income before income taxes	$	238,619		$	174,416		$	48,930

Assets are not allocated to the segments for internal reporting purposes.

Geographic Data

Revenue by principal geographic area, based on the country in which the sale originated, was as follows:

	Year ended December 31,
(In thousands)	2018		2017		2016
United States	$	1,287,405	$	1,037,322	$	839,917
Australia	60,518		62,030		53,068
Other international1	144,716		149,225		119,503
Total revenues	$	1,492,639	$	1,248,577	$	1,012,488

¹ No single country, other than the United States and Australia, made up more than 5 percent of total revenues for any of the years presented.

Net property, equipment and capitalized software is subject to geographic risks because it is generally difficult to move and relatively illiquid. Net property, equipment and capitalized software by principal geographic area was as follows:

	Year ended December 31,
(In thousands)	2018		2017		2016
United States	$	176,111	$	148,490	$	146,165
International1	11,757		15,418		21,113
Net property, equipment and capitalized software	$	187,868	$	163,908	$	167,278

¹ No single country, other than the United States, made up more than 5 percent of total net property, equipment and capitalized software for any of the years presented.

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Supplementary Regulatory Capital Disclosure

12 Months Ended

Dec. 31, 2018

Banking and Thrift [Abstract]

Supplementary Regulatory Capital Disclosure

24. Supplementary Regulatory Capital Disclosure

The Company’s subsidiary, WEX Bank is subject to various regulatory capital requirements administered by the FDIC and the Utah Department of Financial Institutions. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, WEX Bank must meet specific capital guidelines that involve quantitative measures of WEX Bank’s assets, liabilities, and certain off-balance-sheet items. WEX Bank’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. Failure to meet minimum capital requirements can initiate certain mandatory and possible additional discretionary actions by regulators that, if undertaken, could limit our business activities and have a material effect on our business, results of operations and financial condition.

Quantitative measures established by regulation to ensure capital adequacy require WEX Bank to maintain minimum amounts and ratios as defined in the regulations. As of December 31, 2018, the most recent FDIC exam report categorized WEX Bank as “well capitalized” under the regulatory framework for prompt corrective action. There are no conditions or events subsequent to that examination report that management believes have changed WEX Bank’s capital rating.

The following table presents WEX Bank’s actual and regulatory minimum capital amounts and ratios:    

	Actual Amount		Ratio		Minimum for Capital Adequacy Purposes Amount		Ratio		Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount		Ratio
December 31, 2018
Total Capital to risk-weighted assets	$	323,178	12.82	%	$	201,749	8.00	%	$	252,186	10.00	%
Tier 1 Capital to average assets	$	305,734	10.88	%	$	112,401	4.00	%	$	140,501	5.00	%
Common equity to risk-weighted assets	$	305,734	12.12	%	$	113,484	4.50	%	$	163,921	6.50	%
Tier 1 Capital to risk-weighted assets	$	305,734	12.12	%	$	151,312	6.00	%	$	201,749	8.00	%
December 31, 2017
Total Capital to risk-weighted assets	$	316,129	13.38	%	$	188,991	8.00	%	$	236,239	10.00	%
Tier 1 Capital to average assets	$	304,555	12.50	%	$	97,452	4.00	%	$	121,815	5.00	%
Common equity to risk-weighted assets	$	304,555	12.89	%	$	106,308	4.50	%	$	153,555	6.50	%
Tier 1 Capital to risk-weighted assets	$	304,555	12.89	%	$	141,743	6.00	%	$	188,991	8.00	%

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Subsequent Events

12 Months Ended

Dec. 31, 2018

Subsequent Events [Abstract]

Subsequent Events

25. Subsequent Events

Business Acquisitions

On January 16, 2019, the Company entered into an agreement to acquire Discovery Benefits, Inc., an employee benefits administrator, for total cash consideration of approximately $425 million, including $50 million which will be deferred until January of 2020. State Bankshares, Inc., the seller of Discovery Benefits, also retained a 4.9% equity interest in the entity resulting from the combination of WEX Health and Discovery Benefits. This acquisition will provide our partners and customers with a more comprehensive suite of products and services and opens go-to-market channels to include consulting firms and brokers. The Company closed this transaction on March 5, 2019.

On February 14, 2019, the Company acquired Pavestone Capital LLC, a recourse factoring company that provides working capital to businesses for a purchase price of $30 million, subject to net working capital adjustments. This acquisition is expected to complement our existing Fleet factoring business.

2016 Credit Agreement Amendment

On January 18, 2019, the Company amended its 2016 Credit Agreement. The amendment provides an additional tranche A term loan in the principal amount of $300.0 million, which the Company borrowed at execution to fund a portion of the consideration payable upon the closing of the Noventis acquisition. In addition, the amendment provides delayed draw commitments for an incremental $300.0 million in delayed draw commitments. On March 5, 2019, the Company fully drew down this commitment, consisting of $250.0 million in tranche Aterm loans and an incremental $50.0 million of revolving credit in order to fund the acquisition of Discovery Benefits, Inc. The Company paid certain customary fees in connection with the amendment.

Interest Rate Swap Agreements

On March 12, 2019, the Company entered into three interest rate swap contracts. Collectively, these derivative contracts are intended to fix the future interest payments associated with $450.0 million of our variable rate borrowings at interest rates between 2.413% and 2.425%.

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Quarterly Financial Results (Unaudited)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Results (Unaudited)

26. Quarterly Financial Results (Unaudited)

Summarized quarterly results for the years ended December 31, 2018 and 2017, which have been changed to reflect the Revision as described in Note 1, Summary of Significant Accounting Policies, are as follows:

	Three months ended
(In thousands, except per share data)	March 31		June 30		September 30		December 31
2018
Total revenues	$	354,028	$	370,798	$	386,617	$	381,196
Operating income	$	83,859	$	100,424	$	102,564	$	93,791
Net income attributable to shareholders	$	51,970	$	38,424	$	56,644	$	21,257
Earnings per share:
Basic	$	1.21	$	0.89	$	1.31	$	0.49
Diluted	$	1.20	$	0.88	$	1.30	$	0.49
2017
Total revenues	$	292,453	$	303,868	$	320,677	$	331,579
Operating income	$	56,701	$	52,447	$	50,819	$	73,456
Net income attributable to shareholders(a)	$	26,879	$	19,770	$	26,232	$	87,181
Earnings per share:(a)
Basic	$	0.63	$	0.46	$	0.61	$	2.03
Diluted	$	0.62	$	0.46	$	0.61	$	2.02

^(a) The three months ended December 31, 2017 includes a tax benefit of $60.6 million as a result of the 2017 Tax Act.

Basic and diluted net income per share are computed independently for each quarter presented. Therefore, the sum of quarterly basic and diluted net income per share information may not equal annual basic and diluted net income per share.

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Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Business Description

Business Description

WEX Inc. (“Company”, “we” or “our”) is a provider of corporate card payment solutions. The Company provides products and services that meet the needs of businesses in various geographic regions including North and South America, Asia Pacific and Europe. The Company’s Fleet Solutions, Travel and Corporate Solutions, and Health and Employee Benefit Solutions segments provide their customers with security and control for complex payments across a wide spectrum of business sectors. The Company markets its products and services directly, as well as through strategic relationships which include major oil companies, fuel retailers, vehicle maintenance providers, online travel agencies and health partners.

Basis of Presentation

Basis of Presentation

The accompanying consolidated financial statements for the years ended December 31, 2018, 2017 and 2016, include the accounts of the Company and its wholly and majority-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.

The Company rounds amounts in the consolidated financial statements to thousands within tables and millions within text (unless otherwise specified), and calculates all percentages and per-share data from underlying whole-dollar amounts. Thus, certain amounts may not foot, crossfoot, or recalculate based on reported numbers due to rounding.

Use of Estimates and Assumptions

Use of Estimates and Assumptions

The Company prepares its consolidated financial statements in conformity with GAAP and with the Rules and Regulations of the SEC, specifically Regulation S–X and the instructions to Form 10–K. These principles require management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosures of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenue and expenses during the period. Actual results could differ from those estimates and those differences may be material.

Cash and Cash Equivalents

Cash and Cash Equivalents

Highly liquid investments with remaining maturities at the time of purchase of three months or less (that are readily convertible to cash) are considered to be cash equivalents and are stated at cost, which approximates fair value. Cash and cash equivalents include amounts held in Eurodollar time deposits and money market funds, which are unsecured short-term investments entered into with financial institutions.

Restricted Cash

Restricted Cash

Restricted cash represents funds collected from individuals or employers on behalf of our customers that are to be remitted to third parties or funds required to be maintained on hand under certain vendor agreements. This restricted cash, which is not available to fund the Company’s operations, totaled $13.5 million and $18.9 million as of December 31, 2018 and 2017, respectively. We maintain an offsetting liability against restricted cash collected and remitted on behalf of our customers.

Accounts Receivable, Net of Allowances

Accounts Receivable, Net of Allowances

Accounts receivable, net of allowances consist of amounts billed and due from third parties. We often extend short-term credit to cardholders and pay the merchant for the purchase price, less the fees we retain and record as revenue. We subsequently collect the total purchase price from the cardholder.

The amounts due are stated at their net realizable value. The receivables portfolio consists of a large group of homogeneous smaller balances across a wide range of industries, which are collectively evaluated for impairment. The allowance for credit losses reflects management’s estimate of uncollectable balances resulting from credit and fraud losses and is based on the determination of the amount of expected credit losses inherent in the accounts receivable as of the reporting date. Management reviews delinquency reports, historical collection rates, changes in customer payment patterns, economic trends, geography and other information in order to make judgments as to probable credit losses. Management also uses historical charge-off experience to determine the amount of losses inherent in accounts receivable at the reporting date. Assumptions regarding probable credit losses are reviewed periodically and may be impacted by actual performance of accounts receivable and changes in any of the factors discussed above. The balance also includes a reserve for waived finance fees, which is used to maintain customer goodwill and recorded against the late fee revenue recognized.

Investment Securities

Investment Securities

As a result of adopting ASU 2016–01, effective January 1, 2018, changes in the fair value of investment securities are included in net unrealized gain on financial instruments within our consolidated statements of income. Prior to adoption, unrealized gains and losses, net of tax, were reported on the consolidated balance sheets in accumulated other comprehensive loss. Realized gains and losses and declines in fair value determined to be other-than-temporary are included in non-operating expenses. The cost basis of securities is based on the specific identification method. Interest and dividends earned on investment securities are included in other revenue. Investment securities held by the Company were purchased and are held by WEX Bank primarily in order to meet the requirements of the Community Reinvestment Act.

Derivatives

Derivatives

From time to time, the Company utilizes derivative instruments as part of its overall strategy to manage its exposure to fluctuations in fuel prices and to reduce the impact of interest and foreign currency exchange rate volatility. The Company’s derivative instruments are recorded at fair value on the consolidated balance sheets. The Company’s derivative instruments have not been designated as hedges; therefore, both realized and unrealized gains and losses are recognized in earnings. For the purposes of cash flow presentation, realized and unrealized gains or losses are included within cash flows from operating activities.

Property and Equipment

Property and Equipment

Property and equipment are stated at cost, net of accumulated depreciation. Replacements, renewals and improvements are capitalized and costs for repair and maintenance are expensed as incurred. Depreciation is primarily computed using the straight-line method over the estimated useful lives shown below.

Below are the estimated useful lives for assets in service during 2018:

	Estimated Useful Lives
Furniture, fixtures and equipment	3 to 5 years
Internal-use computer software	1.5 to 7 years
Computer software	3 years

Leasehold improvements are depreciated using the straight-line method over the lesser of the remaining lease term or the useful life of the asset.

Capitalized Software

The Company develops software that is used to provide processing and information management services to customers. A significant portion of the Company’s capital expenditures is devoted to the development of such internal-use computer software. Costs incurred during the preliminary project stage are expensed as incurred. Software development costs are capitalized during the application development stage. Capitalization begins when the preliminary project stage is complete, as well as when management authorizes and commits to the funding of the project. Capitalization of costs ceases when the software is ready for its intended use. Costs related to maintenance of internal-use software are expensed as incurred. Software development costs are amortized using the straight-line method over the estimated useful life of the software.

Acquisitions

Acquisitions

For acquisitions that meet the definition of a business combination, the Company applies the acquisition method of accounting where assets acquired and liabilities assumed are recorded at fair value at the date of each acquisition. Acquiree results of operations are included in consolidated results of the Company from the date of the respective acquisition. Any excess of the purchase price paid by the Company over the amounts recognized for assets acquired and liabilities assumed is recorded as goodwill. The Company continues to evaluate acquisitions for a period not to exceed one year after the applicable acquisition date of each transaction to determine whether any additional adjustments are needed to the allocation of the purchase price paid for the assets acquired and liabilities assumed.

All other acquisitions are accounted for as asset acquisitions and the purchase price is allocated to the net assets acquired with no recognition of goodwill. Following the acquisition date, the purchase price is not subsequently adjusted.

The fair value of assets acquired and liabilities assumed is typically determined using a discounted cash flow valuation method, though the Company utilizes alternative valuation methods when deemed appropriate. Significant acquisition valuation assumptions typically include estimated asset useful lives, timing and amount of future cash flows, applicable discount rates and customer attrition rates.

Goodwill and Other Intangible Assets

Goodwill and Other Intangible Assets

The Company classifies intangible assets in the following three categories: (1) intangible assets with definite lives subject to amortization, (2) intangible assets with indefinite lives not subject to amortization and (3) goodwill. The Company tests intangible assets with definite lives for impairment if conditions exist that indicate the carrying value may not be recoverable. Such conditions may include a reduction in operating cash flow or a dramatic change in the manner in which the asset is intended to be used. The Company records an impairment charge when the carrying value of the definite-lived intangible asset is not recoverable from the undiscounted cash flows generated from the use of the asset.

Intangible assets with indefinite lives and goodwill are not amortized. The Company tests these intangible assets and goodwill for impairment at least annually or more frequently if facts or circumstances indicate that such intangible assets or goodwill might be impaired. All goodwill and intangible assets are assigned to reporting units, which are one level below the Company’s operating segments. The Company performs impairment tests at the reporting unit level. Such impairment tests include comparing the fair value of the respective reporting unit with its carrying value, including goodwill. The Company uses both discounted cash flow analyses and comparable company pricing multiples to determine the fair value of our reporting units. Such analyses are corroborated using market analytics. Certain assumptions are used in determining the fair value, including assumptions about future cash flows and terminal values. When appropriate, the Company considers the assumptions that it believes hypothetical marketplace participants would use in estimating future cash flows. In addition, an appropriate discount rate is used, based on the Company’s cost of capital or reporting unit-specific economic factors. When the fair value is less than the carrying value of the intangible assets or the reporting unit, the Company records an impairment charge to reduce the carrying value of the assets to the reporting unit’s implied fair value.

Effective October 1, 2018, the Company adopted ASU 2017–04, which simplified the subsequent measurement of goodwill, eliminating Step 2 from the goodwill impairment test (See Note 2, Recent Accounting Pronouncements, for further information regarding ASU 2017–04). Following adoption, the Company performs its annual goodwill impairment tests by comparing the fair value of a reporting unit with its carrying amount and, if necessary, recognizes an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. The loss recognized cannot exceed the total amount of goodwill allocated to that reporting unit. The Company’s annual goodwill impairment test performed as of October 1, 2018 identified a $3.2 million impairment related to our Brazil fleet reporting unit. No other impairment charges were identified. See Note 9, Goodwill and Other Intangible Assets, for further information. The Company’s annual goodwill and intangible asset impairment tests performed as of October 1, 2017 and 2016 did not identify any impairment.

Our European fleet and Brazil benefits reporting units had negative carrying values as of October 1, 2018. Our 2018 annual goodwill impairment test indicated an excess of estimated fair value greater than the carrying values of these reporting units of approximately $180 million and $250 million, respectively. As of December 31, 2018, goodwill assigned to these reporting units totaled approximately $35.8 million and $14.3 million, respectively. Such amounts are included in our Fleet Solutions and Health and Employee Benefit Solutions segments, respectively.

Intangible assets that are deemed to have definite lives are amortized over their useful lives, which is the period of time that the asset is expected to contribute directly or indirectly to future cash flows. The Company determines the useful lives of its identifiable intangible assets after considering the specific facts and circumstances related to each intangible asset. The factors that management considers when determining useful lives include the contractual term of agreements, the history of the asset, the Company’s long-term strategy for the use of the asset, any laws or other local regulations which could impact the useful life of the asset and other economic factors, including competition and specific market conditions. An evaluation of the remaining useful lives of the definite-lived intangible assets is performed periodically to determine if any change is warranted.

Impairment and Disposals of Assets

Impairment and Disposals of Assets

Long-lived assets are tested for impairment whenever facts or circumstances, such as a reduction in operating cash flow or a significant adverse change in the manner the asset is being used, indicate the carrying amount of the asset may not be recoverable. The Company compares the estimated undiscounted future cash flows associated with these assets or operations to their carrying value to determine if a write-down to fair value is required. See Note 22, Impairment and Restructuring Activities, for further discussion on impairments and asset write-offs.

Fair Value of Financial Instruments

air Value of Financial Instruments

The Company holds mortgage-backed securities, fixed-income securities, money market funds, derivatives (see Note 12, Derivative Instruments) and certain other financial instruments that are carried at fair value. The Company determines fair value based upon quoted prices when available or through the use of alternative approaches, such as model pricing, when market quotes are not readily accessible or available. Various factors are considered in determining the fair value of the Company’s obligations, including: closing exchange or over-the-counter market price quotations; time value and volatility factors underlying options and derivatives; price activity for equivalent instruments; and the Company’s own-credit standing.

These valuation techniques may be based upon observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company’s market assumptions. These two types of inputs create the following fair value hierarchy:

• Level 1 – Quoted prices for identical instruments in active markets.

• Level 2 – Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.

• Level 3 – Instruments whose significant value drivers are unobservable.

Assets and liabilities measured at fair value are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Our assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability.

Investment Securities

When available, the Company uses quoted market prices to determine the fair value of investment securities; such inputs are classified as Level 1 of the fair-value hierarchy. These securities primarily consist of an open-ended mutual fund which is invested in fixed-income securities and is held in order to satisfy the regulatory requirements of WEX Bank. For mortgage-backed and asset-backed debt securities and municipal bonds, the Company generally uses quoted prices for recent trading activity of assets with similar characteristics to the debt security or bond being valued. The securities and bonds priced using such methods are generally valued using Level 2 inputs.

Revenue Recognition

Revenue Recognition

The Company adopted ASU 2014–09 (“Topic 606”) on January 1, 2018, utilizing the modified retrospective method. Under the modified retrospective method, prior period comparable financial information continues to be presented under the guidance of ASC 605, Revenue Recognition. See Note 2, Recent Accounting Pronouncements, for further information regarding the adoption impact. Topic 606 does not apply to rights or obligations associated with financial instruments, which continue to be within the scope of Topic 310, Receivables. In addition, gains on the sale of WEX Latin America receivables are included in other revenue and are within the scope of ASC 860, Transfers and Servicing.

The vast majority of the Company’s Topic 606 revenue is derived from stand-ready obligations to provide payment processing, transaction processing and SaaS services and support. The transaction-based fees are generally calculated based on measures such as (i) percentage of dollar value of volume processed; (ii) number of transactions processed; or (iii) some combination thereof. The Company has entered into agreements with major oil companies, fuel retailers, vehicle maintenance providers, online travel agencies and health partners which provide products and/or services to the Company’s customers. These agreements specify that a transaction is deemed to be captured when the Company has validated that the transaction has no errors and has accepted and posted the data to the Company’s records. Prior to adoption of Topic 606, the Company recognized revenues when persuasive evidence of an arrangement existed, the products and services had been provided to the client, the sales price was fixed or determinable and collectability was reasonably assured. Subsequent to adoption of Topic 606, revenue is recognized based on the value of services transferred to date using a time elapsed output method. The change in accounting guidance did not result in a change in the pattern or timing of our revenue recognition. Point-in-time revenue recognized during the year ended December 31, 2018 was not material. See Note 3, Revenue, for further information regarding accounting policies applied before and after the Company's adoption of Topic 606 as well as for a description of the major components of revenue.

The Company generally records revenue net of consideration retained based upon its conclusion that the Company is the agent in its principal versus agent relationships. Prior to the adoption of Topic 606, this conclusion was based on the following criteria: (i) the Company is not the primary obligor in the arrangement; (ii) the Company has no inventory risk; (iii) the Company does not have reasonable latitude with respect to establishing the price for the product; (iv) the Company does not make any changes to the product or have any involvement in the product specifications; and, (v) the amount the Company earns for its services is fixed, within a limited range. Under Topic 606, the Company evaluated the nature of its promise to the customer and determined that it does not control a promised good or service before transferring that good or service to the customer, but rather arranges for another entity to provide the goods or services.

The Company enters into contracts with certain large customers or partners that provide for fee rebates tied to performance milestones. Rebates and incentives are calculated based on estimated performance and the terms of the related business agreements. Prior to the adoption of Topic 606, certain amounts paid to partners in our Fleet Solutions and Travel and Corporate Solutions segments were recorded as a reduction in revenue in the same period that revenue was earned or performance occurs. Subsequent to the adoption of Topic 606, these amounts are now reflected within sales and marketing expense on our consolidated statements of income. See Note 2, Recent Accounting Pronouncements, for further information regarding the adoption impact.

Stock-Based Compensation

Stock-Based Compensation

The Company recognizes the fair value of all stock-based payments to employees in its financial statements. The Company estimates the fair value of service-based stock option awards and market performance-based stock option awards on the grant date using a Black-Scholes-Merton valuation model and a Monte Carlo simulation model, respectively. The fair value of Restricted Stock Units (“RSUs”), including Performance Based Restricted Stock Units (“PBRSUs”), is determined and fixed on the grant date based on the closing price of the Company’s stock price.

Stock-based compensation expense is net of estimated forfeitures and is recorded over each award’s requisite service period. The Company uses the straight-line methodology for recognizing the expense associated with service-based stock options and RSU grants and a graded-vesting methodology for the expense recognition of market performance-based stock options and PBRSUs.

Advertising Costs

Advertising Costs

Advertising and marketing costs are expensed in the period incurred.

Income Taxes

Income Taxes

Income taxes are accounted for under the asset and liability method. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in the period that includes the enactment date.

The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which the associated temporary differences became deductible. A valuation allowance is established for those jurisdictions in which deferred tax assets realization is deemed less than more likely than not.

Accounting guidance prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. This accounting guidance also provides guidance on derecognition, classification, interest and penalties, accounting in the interim periods, disclosure, and transition. Penalties and interest related to uncertain tax positions are recognized as a component of income tax expense. To the extent penalties and interest are not assessed with respect to uncertain tax positions, amounts accrued are reduced and reflected as a reduction of the overall income tax provision.

Earnings per Share

Earnings per Share

Basic earnings per share is computed by dividing net income attributable to shareholders by the weighted average number of shares of common stock and vested deferred stock units (“DSUs”) outstanding during the year. The computation of diluted earnings per share is similar to the computation of basic earnings per share, except that the denominator is increased for the assumed exercise of dilutive options and assumed issuance of unvested performance-based awards for which the performance condition has been met as of the date of determination using the treasury stock method unless the effect is anti-dilutive. The treasury stock method assumes that proceeds, including cash received from the exercise of employee stock options and the average unrecognized compensation expense for unvested share-based compensation awards, would be used to purchase the Company’s common stock at the average market price during the period.

Foreign Currency Movement

Foreign Currency Movement

The financial statements of the Company’s foreign subsidiaries, where the local currency is the functional currency, are


translated to U.S. dollars using year-end spot exchange rates for assets and liabilities, average exchange rates for revenue and expenses and historical exchange rates for equity transactions. The resulting foreign currency translation adjustment is recorded as a component of accumulated other comprehensive loss.

Gains and losses on foreign currency transactions as well as the remeasurement of the Company’s cash, receivable and payable balances that are denominated in foreign currencies, are recorded directly in net foreign currency gain (loss) in the consolidated statements of income. However, gains or losses resulting from intercompany transactions where repayment is not anticipated for the foreseeable future are not recognized in the consolidated statements of income. In these situations, the gains or losses are deferred and included as a component of accumulated other comprehensive loss. In addition, gains and losses associated with the Company’s foreign currency exchange derivatives are recorded in net foreign currency gain (loss) in the consolidated statements of income.

Accumulated Other Comprehensive Loss

Accumulated Other Comprehensive Loss (“AOCL”)

For the year ended December 31, 2018, AOCL consists entirely of unrealized gains and losses on foreign currency translation adjustments pertaining to the net investment in foreign operations. For the years ended December 31, 2017 and 2016, AOCL also included less than $1 million related to unrealized gains and losses on investment securities. Realized gains or losses on investment securities are classified as non-operating in the consolidated statements of income. Amounts are recognized net of tax to the extent applicable.

Recent Accounting Pronouncements

Standard	Description	Date/Method of Adoption	Effect on financial statements or other significant matters
Adopted During the Year Ended December 31, 2018
ASU 2014–09	This standard supersedes most existing revenue recognition guidance under GAAP. This revenue recognition standard requires entities to recognize revenue for the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, the standard requires disclosure of the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers.	The Company adopted ASU 2014–09 on January 1, 2018 using the modified retrospective approach to those contracts that were not completed as of January 1, 2018. Adoption resulted in a cumulative adjustment to retained earnings as of the effective date, without restatement of prior period amounts.	The Company’s revenue from discount and interchange, transaction processing and certain fees is within the scope of Topic 606. FASB and its Transition Resource Group have issued clarifications on various aspects of ASU 2014–09. There were three primary impacts to the Company resulting from the adoption of Topic 606, which are described below. Certain amounts paid to partners in our Fleet Solutions and Travel and Corporate Solutions segments have been determined to fall under the “cost to obtain a contract” guidance. As a result, these amounts, which were previously presented as a reduction of revenues, are now reflected within sales and marketing expense on our consolidated statements of income. This change increased both reported revenues and expenses for the year ended December 31, 2018 by $60.7 million. Network fees paid by all three of our segments, but primarily by our Travel and Corporate Solutions segment, are now presented as a reduction of revenues in our consolidated statements of income. Prior to January 1, 2018, these amounts were included within service fees. This change reduced both reported revenues and expenses by $18.5 million for the year ended December 31, 2018. Certain costs to obtain a contract, such as sales commissions, are to be capitalized and amortized over the life of the customer relationship, with a practical expedient available for contracts under one year in duration. The vast majority of the Company’s commissions will continue to be expensed as incurred. This change resulted in an immaterial impact to operating income for the year ended December 31, 2018. As of January 1, 2018, we recorded $0.6 million cumulative-effect adjustment, net of the associated tax effect, related to the deferral of capitalizable costs to obtain a contract within our Health and Employee Benefit Solutions segment. These commissions are amortized to sales and marketing expense over a useful life that considers the contract term, our commission policy, renewal experience and the transfer of services to which the asset relates.
ASU 2016–01	This standard requires equity investments, except those accounted for under the equity method of accounting, or those that result in consolidation of the investee, to be measured at fair value with changes in fair value recognized in net income.	The Company adopted ASU 2016–01 effective January 1, 2018.	Changes in the fair value of investment securities are now reflected as non-operating income within our consolidated statements of income. The adoption did not have a material impact on our results of operations, balance sheet or cash flows.
ASU 2016–18	This standard clarifies the classification and presentation of restricted cash in the statement of cash flows. Upon adoption, the statement of cash flows must explain the change during the period in the total of cash and cash equivalents and amounts described as restricted cash or cash equivalents.	The Company retrospectively adopted ASU 2016–18 effective January 1, 2018.	This retrospective adoption resulted in including restricted cash in cash, cash equivalents and restricted cash when reconciling the beginning of year and end of year amounts presented on the consolidated statements of cash flows. A reconciliation of cash, cash equivalents and restricted cash as reported within our consolidated balance sheets is included within our consolidated statements of cash flows.

ASU 2017–04	This standard simplifies the subsequent measurement of goodwill, eliminating Step 2 from the goodwill impairment test, in which entities were to measure the goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount. Following adoption, entities should perform annual and interim goodwill impairment tests by comparing the fair value of a reporting unit with its carrying amount and if necessary, recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. The loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. Additionally, an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss, if applicable. Finally, the standard also eliminated the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test.	The Company early adopted ASU 2017–04 effective October 1, 2018.	The early adoption of this standard impacted the process used to calculate a goodwill impairment recognized during the fourth quarter of 2018. See Note 9, Goodwill and Other Intangible Assets, for more information.
ASU 2017–07	This standard changes the presentation of net benefit pension costs by requiring the disaggregation of certain of its components. Under the guidance, companies are required to present the service cost component in the same income statement line item(s) as other employee compensation costs arising from services rendered during the period. The other components of net benefit cost will be presented in the income statement separately from the service cost component and outside the subtotal of operating income, if one is presented. Additionally, only the service cost component will be eligible for capitalization under the new guidance.	The Company adopted ASU 2017–07 effective January 1, 2018.	The adoption did not have a material impact on our results of operations, cash flows or consolidated financial position.

Not Yet Adopted as of December 31, 2018
ASU 2016–02	This standard requires lessees to recognize leases on-balance sheet and disclose key information about leasing arrangements.	The Company plans to adopt ASU 2016–02 effective January 1, 2019 using the modified retrospective method provided under ASU 2018–11 Leases (Topic 842): Targeted Improvements.	The new standard provides a number of optional practical expedients in transition. We expect to elect the ‘package of practical expedients’, which permits us not to reassess under the new standard our prior conclusions about lease identification and lease classification. We do not expect to elect the use-of hindsight or the practical expedient pertaining to land easements; the latter not being applicable to us. While we continue to assess all of the effects of adoption, we currently believe the most significant effects relate to the recognition of new right-of-use (“ROU”) assets and lease liabilities on our balance sheet for our real estate operating leases and providing significant new disclosures about our leasing activities. We do not expect a significant change in our leasing activities between now and adoption. We currently expect to recognize operating lease liabilities on the March 31, 2019 unaudited condensed consolidated balance sheet ranging from $73 million to $83 million, based on the present value of the remaining minimum rental payments under current leasing standards for existing operating leases. We expect to recognize corresponding ROU assets on the March 31, 2019 unaudited condensed consolidated balance sheet ranging from $64 million to $74 million. The new standard also provides practical expedients for an entity’s ongoing accounting. We currently expect to elect the short-term lease recognition exemption for all leases that qualify. This means, for those leases that qualify, we will not recognize ROU assets or lease liabilities, including for existing short-term leases of those assets in transition. We also currently expect to elect the practical expedient to not separate lease and non-lease components for our real estate leases.
ASU 2016–13	This standard requires financial assets measured at amortized cost basis to be presented at the net amount expected to be collected. The measurement of expected credit losses will be based on historical experience, current conditions, and reasonable and supportable forecasts that impact the collectability of the reported amount.	The standard is effective for annual reporting periods beginning after December 15, 2019, including interim periods within those fiscal years.	The Company is evaluating the impact the standard will have on the consolidated financial statements and related disclosures.
ASU 2018–15	This standard clarifies the accounting for capitalizing implementation costs in a cloud computing arrangement that is a service contract. The standard provides that implementation costs be treated using the same criteria used for internal-use software development costs, with amortization expense being recorded in the same income statement expense line as the hosted service costs and over the expected term of the hosting arrangement.	The standard is effective January 1, 2020.	The Company does not believe that this standard will have a material impact on our results of operations, cash flows or consolidated financial position.

Accounts Receivable

In general, the Company’s trade receivables provide for payment terms of 30 days or less. Receivables not paid within the terms of the agreement are generally subject to late fees based upon the outstanding receivable balance.

The Company extends revolving credit to certain small fleets. These accounts are also subject to late fees and balances that are not paid in full are subject to interest charges based on the revolving balance.

Investments

The Company reviews its investments to identify and evaluate indications of possible impairment. Factors considered in determining whether a loss is temporary include the length of time and extent to which the fair value has been less than the cost basis, the financial condition and near-term prospects of the investee, and the Company’s intent and ability to hold the investment for a period of time sufficient to allow for any anticipated recovery in market value. Substantially all of the Company’s fixed income securities are rated investment grade or better.

Derivatives Activity

The Company is exposed to certain market risks relating to its ongoing business operations. From time to time, the Company enters into derivative instrument arrangements to manage various risks including interest rate risk, foreign exchange risk, and commodity price risk.

Segment Information

The Company’s CODM is its Chief Executive Officer. The operating segments are aggregated into the three reportable segments described below.    

• Fleet Solutions provides customers with payment and transaction processing services specifically designed for the needs of commercial and government fleets. This segment also provides information management services to these fleet customers.

• Travel and Corporate Solutions focuses on the complex payment environment of business-to-business payments, providing customers with payment processing solutions for their corporate payment and transaction monitoring needs.

• Health and Employee Benefit Solutions provides healthcare payment products and SaaS consumer directed platforms, as well as payroll related benefits to customers.

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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Schedules of Immaterial Error Corrections

The effects of the Revision on our consolidated statements of income were as follows:

	Year Ended December 31, 2017
(In thousands, except per share data)	As Previously Reported		Brazil Adjustments			Other Immaterial Adjustments			As Revised
Total revenues	$	1,250,548	$	(3,325	)	$	1,354		$	1,248,577
Processing costs	$	279,497	$	(1,441	)	$	—		$	278,056
Provision for credit losses	$	61,148	$	3,070		$	—		$	64,218
General and administrative	$	182,092	$	—		$	2,247		$	184,339
Net foreign currency gain	$	29,919	$	—		$	1,568		$	31,487
Income taxes	$	19,525	$	(2,023	)	$	(2,052	)	$	15,450
Net income	$	159,170	$	(2,931	)	$	2,727		$	158,966
Net income attributable to shareholders	$	160,266	$	(2,931	)	$	2,727		$	160,062
Net income attributable to WEX Inc. per share
Basic	$	3.73	$	(0.07	)	$	0.06		$	3.72
Diluted	$	3.72	$	(0.07	)	$	0.06		$	3.71

	Year Ended December 31, 2016
(In thousands, except per share data)	As Previously Reported			Brazil Adjustments			Other Immaterial Adjustments			As Revised
Total revenues	$	1,018,460		$	—		$	(5,972	)	$	1,012,488
Processing costs	$	240,196		$	30,521		$	—		$	270,717
Provision for credit losses	$	33,348		$	110		$	—		$	33,458
Net foreign currency loss	$	(7,665	)	$	—		$	(1,568	)	$	(9,233	)
Income taxes	$	29,625		$	—		$	(1,033	)	$	28,592
Net income	$	57,476		$	(30,631	)	$	(6,507	)	$	20,338
Net income attributable to shareholders	$	60,637		$	(30,631	)	$	(6,507	)	$	23,499
Net income attributable to WEX Inc. per share
Basic	$	1.49		$	(0.75	)	$	(0.16	)	$	0.58
Diluted	$	1.48		$	(0.75	)	$	(0.16	)	$	0.57

The effects of the Revision on our consolidated balance sheets were as follows:

	December 31, 2017
(In thousands)	As Previously Reported			Brazil Adjustments			Other Immaterial Adjustments			As Revised
Assets
Cash and cash equivalents	$	508,072		$	—		$	(4,553	)	$	503,519
Accounts receivable, net of allowances	$	2,517,980		$	(56,393	)	$	(5,680	)	$	2,455,907
Prepaid expenses and other current assets	$	69,413		$	—		$	8,119		$	77,532
Deferred income taxes, net	$	7,752		$	848		$	(879	)	$	7,721
Other assets	$	253,088		$	—		$	4,553		$	257,641
Liabilities
Accounts payable	$	811,362		$	29,570		$	2,248		$	843,180
Other current liabilities	$	24,795		$	(1,629	)	$	9,957		$	33,123
Deferred income taxes, net	$	119,283		$	455		$	(3,490	)	$	116,248
Other liabilities	$	32,683		$	—		$	(638	)	$	32,045
Stockholders' equity
Retained earnings	$	1,404,683		$	(85,506	)	$	(6,517	)	$	1,312,660
Accumulated other comprehensive loss	$	(90,795	)	$	1,565		$	—		$	(89,230	)

The effects of the Revision on our consolidated statements of cash flows were as follows:

	Year Ended December 31, 2017
(In thousands)	As Previously Reported			Brazil Adjustments	Other Immaterial Adjustments		As Revised
Net cash provided by operating activities	$	129,403		—	6,024		$	135,427
Net cash used for investing activities	$	(163,501	)	—	(4,553	)	$	(168,054	)
Effect of exchange rates on cash, cash equivalents and restricted cash	$	(11,691	)	—	(6,024	)	$	(17,715	)
Cash, cash equivalents and restricted cash, end of year	$	526,938		—	(4,553	)	$	522,385

	Year Ended December 31, 2016
(In thousands)	As Previously Reported			Brazil Adjustments			Other Immaterial Adjustments			As Revised
Net cash used for operating activities	$	(146,656	)	$	1,831		$	3,639		$	(141,186	)
Effect of exchange rates on cash, cash equivalents and restricted cash	$	6,430		$	—		$	(3,639	)	$	2,791
Cash, cash equivalents and restricted cash, beginning of year	$	297,926		$	(1,831	)	$	—		$	296,095

The following table presents the effects of the Revision on our retained earnings and accumulated other comprehensive loss as of January 1, 2016:

	January 1, 2016
(In thousands)	As Previously Reported			Brazil Adjustments			Other Immaterial Adjustments			As Revised
Retained earnings	$	1,183,634		$	(51,943	)	$	(2,738	)	$	1,128,953
Accumulated other comprehensive loss	$	(103,451	)	$	9,518		$	—		$	(93,933	)

The following table presents the increase (decrease) of the effects of the Revision on Note 26 - Quarterly Financial Results (Unaudited):

(Unaudited)	Three Months Ended
(In thousands, except per share data)	March 31			June 30			September 30			December 31
2018
Total revenues	$	(801	)	$	(78	)	$	3,927		$	(43	)
Operating income	$	5,497		$	(2,487	)	$	1,876		$	574
Net income attributable to shareholders	$	3,337		$	(874	)	$	(678	)	$	3,972
Earnings per share:
Basic	$	0.08		$	(0.02	)	$	(0.02	)	$	0.09
Diluted	$	0.08		$	(0.02	)	$	(0.01	)	$	0.09
2017
Total revenues	$	1,096		$	(16	)	$	(3,325	)	$	274
Operating income	$	(4,051	)	$	4,866		$	(12,904	)	$	6,242
Net income attributable to shareholders	$	(2,522	)	$	2,680		$	(7,739	)	$	7,377
Earnings per share:
Basic	$	(0.06	)	$	0.06		$	(0.18	)	$	0.17
Diluted	$	(0.06	)	$	0.06		$	(0.18	)	$	0.17

Estimated Useful Lives

Below are the estimated useful lives for assets in service during 2018:

	Estimated Useful Lives
Furniture, fixtures and equipment	3 to 5 years
Internal-use computer software	1.5 to 7 years
Computer software	3 years

Leasehold improvements are depreciated using the straight-line method over the lesser of the remaining lease term or the useful life of the asset.

Schedule of Internal-Use Software

Below are the amounts of internal-use software capitalized and amortized:

	Year ended December 31,
(in thousands)	2018		2017		2016
Amounts capitalized for internal-use computer software (including work-in-process)	$	46,382	$	50,682	$	55,379
Amounts expensed for amortization of internal-use computer software	$	38,632	$	32,582	$	27,581

Schedule of Net Earnings Attributable to Shareholders and Reconciliation of Basic and Diluted Shares

The following table summarizes net income attributable to shareholders and reconciles basic and diluted shares outstanding used in the earnings per share computations:

	Year ended December 31,
(In thousands)	2018		2017		2016
Net income attributable to shareholders	$	168,295	$	160,062	$	23,499
Weighted average common shares outstanding – Basic	43,156		42,977		40,809
Dilutive impact of share-based compensation awards	418		128		105
Weighted average common shares outstanding – Diluted	43,574		43,105		40,914

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Recent Accounting Pronouncements (Tables)

12 Months Ended

Dec. 31, 2018

Accounting Changes and Error Corrections [Abstract]

Schedule of New Accounting Pronouncements and Changes in Accounting Principles

The following table provides a brief description of recent accounting pronouncements that could have a material effect on our financial statements:

Standard	Description	Date/Method of Adoption	Effect on financial statements or other significant matters
Adopted During the Year Ended December 31, 2018
ASU 2014–09	This standard supersedes most existing revenue recognition guidance under GAAP. This revenue recognition standard requires entities to recognize revenue for the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, the standard requires disclosure of the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers.	The Company adopted ASU 2014–09 on January 1, 2018 using the modified retrospective approach to those contracts that were not completed as of January 1, 2018. Adoption resulted in a cumulative adjustment to retained earnings as of the effective date, without restatement of prior period amounts.	The Company’s revenue from discount and interchange, transaction processing and certain fees is within the scope of Topic 606. FASB and its Transition Resource Group have issued clarifications on various aspects of ASU 2014–09. There were three primary impacts to the Company resulting from the adoption of Topic 606, which are described below. Certain amounts paid to partners in our Fleet Solutions and Travel and Corporate Solutions segments have been determined to fall under the “cost to obtain a contract” guidance. As a result, these amounts, which were previously presented as a reduction of revenues, are now reflected within sales and marketing expense on our consolidated statements of income. This change increased both reported revenues and expenses for the year ended December 31, 2018 by $60.7 million. Network fees paid by all three of our segments, but primarily by our Travel and Corporate Solutions segment, are now presented as a reduction of revenues in our consolidated statements of income. Prior to January 1, 2018, these amounts were included within service fees. This change reduced both reported revenues and expenses by $18.5 million for the year ended December 31, 2018. Certain costs to obtain a contract, such as sales commissions, are to be capitalized and amortized over the life of the customer relationship, with a practical expedient available for contracts under one year in duration. The vast majority of the Company’s commissions will continue to be expensed as incurred. This change resulted in an immaterial impact to operating income for the year ended December 31, 2018. As of January 1, 2018, we recorded $0.6 million cumulative-effect adjustment, net of the associated tax effect, related to the deferral of capitalizable costs to obtain a contract within our Health and Employee Benefit Solutions segment. These commissions are amortized to sales and marketing expense over a useful life that considers the contract term, our commission policy, renewal experience and the transfer of services to which the asset relates.
ASU 2016–01	This standard requires equity investments, except those accounted for under the equity method of accounting, or those that result in consolidation of the investee, to be measured at fair value with changes in fair value recognized in net income.	The Company adopted ASU 2016–01 effective January 1, 2018.	Changes in the fair value of investment securities are now reflected as non-operating income within our consolidated statements of income. The adoption did not have a material impact on our results of operations, balance sheet or cash flows.
ASU 2016–18	This standard clarifies the classification and presentation of restricted cash in the statement of cash flows. Upon adoption, the statement of cash flows must explain the change during the period in the total of cash and cash equivalents and amounts described as restricted cash or cash equivalents.	The Company retrospectively adopted ASU 2016–18 effective January 1, 2018.	This retrospective adoption resulted in including restricted cash in cash, cash equivalents and restricted cash when reconciling the beginning of year and end of year amounts presented on the consolidated statements of cash flows. A reconciliation of cash, cash equivalents and restricted cash as reported within our consolidated balance sheets is included within our consolidated statements of cash flows.

ASU 2017–04	This standard simplifies the subsequent measurement of goodwill, eliminating Step 2 from the goodwill impairment test, in which entities were to measure the goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount. Following adoption, entities should perform annual and interim goodwill impairment tests by comparing the fair value of a reporting unit with its carrying amount and if necessary, recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. The loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. Additionally, an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss, if applicable. Finally, the standard also eliminated the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test.	The Company early adopted ASU 2017–04 effective October 1, 2018.	The early adoption of this standard impacted the process used to calculate a goodwill impairment recognized during the fourth quarter of 2018. See Note 9, Goodwill and Other Intangible Assets, for more information.
ASU 2017–07	This standard changes the presentation of net benefit pension costs by requiring the disaggregation of certain of its components. Under the guidance, companies are required to present the service cost component in the same income statement line item(s) as other employee compensation costs arising from services rendered during the period. The other components of net benefit cost will be presented in the income statement separately from the service cost component and outside the subtotal of operating income, if one is presented. Additionally, only the service cost component will be eligible for capitalization under the new guidance.	The Company adopted ASU 2017–07 effective January 1, 2018.	The adoption did not have a material impact on our results of operations, cash flows or consolidated financial position.

Not Yet Adopted as of December 31, 2018
ASU 2016–02	This standard requires lessees to recognize leases on-balance sheet and disclose key information about leasing arrangements.	The Company plans to adopt ASU 2016–02 effective January 1, 2019 using the modified retrospective method provided under ASU 2018–11 Leases (Topic 842): Targeted Improvements.	The new standard provides a number of optional practical expedients in transition. We expect to elect the ‘package of practical expedients’, which permits us not to reassess under the new standard our prior conclusions about lease identification and lease classification. We do not expect to elect the use-of hindsight or the practical expedient pertaining to land easements; the latter not being applicable to us. While we continue to assess all of the effects of adoption, we currently believe the most significant effects relate to the recognition of new right-of-use (“ROU”) assets and lease liabilities on our balance sheet for our real estate operating leases and providing significant new disclosures about our leasing activities. We do not expect a significant change in our leasing activities between now and adoption. We currently expect to recognize operating lease liabilities on the March 31, 2019 unaudited condensed consolidated balance sheet ranging from $73 million to $83 million, based on the present value of the remaining minimum rental payments under current leasing standards for existing operating leases. We expect to recognize corresponding ROU assets on the March 31, 2019 unaudited condensed consolidated balance sheet ranging from $64 million to $74 million. The new standard also provides practical expedients for an entity’s ongoing accounting. We currently expect to elect the short-term lease recognition exemption for all leases that qualify. This means, for those leases that qualify, we will not recognize ROU assets or lease liabilities, including for existing short-term leases of those assets in transition. We also currently expect to elect the practical expedient to not separate lease and non-lease components for our real estate leases.
ASU 2016–13	This standard requires financial assets measured at amortized cost basis to be presented at the net amount expected to be collected. The measurement of expected credit losses will be based on historical experience, current conditions, and reasonable and supportable forecasts that impact the collectability of the reported amount.	The standard is effective for annual reporting periods beginning after December 15, 2019, including interim periods within those fiscal years.	The Company is evaluating the impact the standard will have on the consolidated financial statements and related disclosures.
ASU 2018–15	This standard clarifies the accounting for capitalizing implementation costs in a cloud computing arrangement that is a service contract. The standard provides that implementation costs be treated using the same criteria used for internal-use software development costs, with amortization expense being recorded in the same income statement expense line as the hosted service costs and over the expected term of the hosting arrangement.	The standard is effective January 1, 2020.	The Company does not believe that this standard will have a material impact on our results of operations, cash flows or consolidated financial position.

The impact of adopting Topic 606 for the year ended December 31, 2018 was as follows:

	Year Ended December 31, 2018
(In thousands)	Prior to Adoption			Impact of Topic 606			As Reported
Revenues
Payment processing revenue	$	685,250		$	38,741		$	723,991
Account servicing revenue	308,096			—			308,096
Finance fee revenue	208,627			—			208,627
Other revenue	248,217			3,708			251,925
Total revenues	1,450,190			42,449			1,492,639
Cost of services
Processing costs	309,450			—			309,450
Service fees	72,146			(18,491		)	53,655
Provision for credit losses	66,482			—			66,482
Operating interest	38,407			—			38,407
Depreciation and amortization	79,935			—			79,935
Total cost of services	566,420			(18,491		)	547,929
General and administrative	209,319			—			209,319
Sales and marketing	168,504			60,730			229,234
Depreciation and amortization	119,870			—			119,870
Impairment charges	5,649			—			5,649
Operating income	380,428			210			380,638
Financing interest expense	(105,023		)	—			(105,023		)
Net foreign currency loss	(38,800		)	—			(38,800		)
Non-cash adjustments related to tax receivable agreement	(775		)	—			(775		)
Net unrealized gain on financial instruments	2,579			—			2,579
Income before income taxes	238,409			210			238,619
Income taxes	68,781			62			68,843
Net income	169,628			148			169,776
Less: Net income from non-controlling interest	1,481			—			1,481
Net income attributable to shareholders	$	168,147		$	148		$	168,295

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Revenue (Tables)

12 Months Ended

Dec. 31, 2018

Revenue from Contract with Customer [Abstract]

Schedule of New Accounting Pronouncements and Changes in Accounting Principles

The following table provides a brief description of recent accounting pronouncements that could have a material effect on our financial statements:

Standard	Description	Date/Method of Adoption	Effect on financial statements or other significant matters
Adopted During the Year Ended December 31, 2018
ASU 2014–09	This standard supersedes most existing revenue recognition guidance under GAAP. This revenue recognition standard requires entities to recognize revenue for the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, the standard requires disclosure of the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers.	The Company adopted ASU 2014–09 on January 1, 2018 using the modified retrospective approach to those contracts that were not completed as of January 1, 2018. Adoption resulted in a cumulative adjustment to retained earnings as of the effective date, without restatement of prior period amounts.	The Company’s revenue from discount and interchange, transaction processing and certain fees is within the scope of Topic 606. FASB and its Transition Resource Group have issued clarifications on various aspects of ASU 2014–09. There were three primary impacts to the Company resulting from the adoption of Topic 606, which are described below. Certain amounts paid to partners in our Fleet Solutions and Travel and Corporate Solutions segments have been determined to fall under the “cost to obtain a contract” guidance. As a result, these amounts, which were previously presented as a reduction of revenues, are now reflected within sales and marketing expense on our consolidated statements of income. This change increased both reported revenues and expenses for the year ended December 31, 2018 by $60.7 million. Network fees paid by all three of our segments, but primarily by our Travel and Corporate Solutions segment, are now presented as a reduction of revenues in our consolidated statements of income. Prior to January 1, 2018, these amounts were included within service fees. This change reduced both reported revenues and expenses by $18.5 million for the year ended December 31, 2018. Certain costs to obtain a contract, such as sales commissions, are to be capitalized and amortized over the life of the customer relationship, with a practical expedient available for contracts under one year in duration. The vast majority of the Company’s commissions will continue to be expensed as incurred. This change resulted in an immaterial impact to operating income for the year ended December 31, 2018. As of January 1, 2018, we recorded $0.6 million cumulative-effect adjustment, net of the associated tax effect, related to the deferral of capitalizable costs to obtain a contract within our Health and Employee Benefit Solutions segment. These commissions are amortized to sales and marketing expense over a useful life that considers the contract term, our commission policy, renewal experience and the transfer of services to which the asset relates.
ASU 2016–01	This standard requires equity investments, except those accounted for under the equity method of accounting, or those that result in consolidation of the investee, to be measured at fair value with changes in fair value recognized in net income.	The Company adopted ASU 2016–01 effective January 1, 2018.	Changes in the fair value of investment securities are now reflected as non-operating income within our consolidated statements of income. The adoption did not have a material impact on our results of operations, balance sheet or cash flows.
ASU 2016–18	This standard clarifies the classification and presentation of restricted cash in the statement of cash flows. Upon adoption, the statement of cash flows must explain the change during the period in the total of cash and cash equivalents and amounts described as restricted cash or cash equivalents.	The Company retrospectively adopted ASU 2016–18 effective January 1, 2018.	This retrospective adoption resulted in including restricted cash in cash, cash equivalents and restricted cash when reconciling the beginning of year and end of year amounts presented on the consolidated statements of cash flows. A reconciliation of cash, cash equivalents and restricted cash as reported within our consolidated balance sheets is included within our consolidated statements of cash flows.

ASU 2017–04	This standard simplifies the subsequent measurement of goodwill, eliminating Step 2 from the goodwill impairment test, in which entities were to measure the goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount. Following adoption, entities should perform annual and interim goodwill impairment tests by comparing the fair value of a reporting unit with its carrying amount and if necessary, recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. The loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. Additionally, an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss, if applicable. Finally, the standard also eliminated the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test.	The Company early adopted ASU 2017–04 effective October 1, 2018.	The early adoption of this standard impacted the process used to calculate a goodwill impairment recognized during the fourth quarter of 2018. See Note 9, Goodwill and Other Intangible Assets, for more information.
ASU 2017–07	This standard changes the presentation of net benefit pension costs by requiring the disaggregation of certain of its components. Under the guidance, companies are required to present the service cost component in the same income statement line item(s) as other employee compensation costs arising from services rendered during the period. The other components of net benefit cost will be presented in the income statement separately from the service cost component and outside the subtotal of operating income, if one is presented. Additionally, only the service cost component will be eligible for capitalization under the new guidance.	The Company adopted ASU 2017–07 effective January 1, 2018.	The adoption did not have a material impact on our results of operations, cash flows or consolidated financial position.

Not Yet Adopted as of December 31, 2018
ASU 2016–02	This standard requires lessees to recognize leases on-balance sheet and disclose key information about leasing arrangements.	The Company plans to adopt ASU 2016–02 effective January 1, 2019 using the modified retrospective method provided under ASU 2018–11 Leases (Topic 842): Targeted Improvements.	The new standard provides a number of optional practical expedients in transition. We expect to elect the ‘package of practical expedients’, which permits us not to reassess under the new standard our prior conclusions about lease identification and lease classification. We do not expect to elect the use-of hindsight or the practical expedient pertaining to land easements; the latter not being applicable to us. While we continue to assess all of the effects of adoption, we currently believe the most significant effects relate to the recognition of new right-of-use (“ROU”) assets and lease liabilities on our balance sheet for our real estate operating leases and providing significant new disclosures about our leasing activities. We do not expect a significant change in our leasing activities between now and adoption. We currently expect to recognize operating lease liabilities on the March 31, 2019 unaudited condensed consolidated balance sheet ranging from $73 million to $83 million, based on the present value of the remaining minimum rental payments under current leasing standards for existing operating leases. We expect to recognize corresponding ROU assets on the March 31, 2019 unaudited condensed consolidated balance sheet ranging from $64 million to $74 million. The new standard also provides practical expedients for an entity’s ongoing accounting. We currently expect to elect the short-term lease recognition exemption for all leases that qualify. This means, for those leases that qualify, we will not recognize ROU assets or lease liabilities, including for existing short-term leases of those assets in transition. We also currently expect to elect the practical expedient to not separate lease and non-lease components for our real estate leases.
ASU 2016–13	This standard requires financial assets measured at amortized cost basis to be presented at the net amount expected to be collected. The measurement of expected credit losses will be based on historical experience, current conditions, and reasonable and supportable forecasts that impact the collectability of the reported amount.	The standard is effective for annual reporting periods beginning after December 15, 2019, including interim periods within those fiscal years.	The Company is evaluating the impact the standard will have on the consolidated financial statements and related disclosures.
ASU 2018–15	This standard clarifies the accounting for capitalizing implementation costs in a cloud computing arrangement that is a service contract. The standard provides that implementation costs be treated using the same criteria used for internal-use software development costs, with amortization expense being recorded in the same income statement expense line as the hosted service costs and over the expected term of the hosting arrangement.	The standard is effective January 1, 2020.	The Company does not believe that this standard will have a material impact on our results of operations, cash flows or consolidated financial position.

The impact of adopting Topic 606 for the year ended December 31, 2018 was as follows:

	Year Ended December 31, 2018
(In thousands)	Prior to Adoption			Impact of Topic 606			As Reported
Revenues
Payment processing revenue	$	685,250		$	38,741		$	723,991
Account servicing revenue	308,096			—			308,096
Finance fee revenue	208,627			—			208,627
Other revenue	248,217			3,708			251,925
Total revenues	1,450,190			42,449			1,492,639
Cost of services
Processing costs	309,450			—			309,450
Service fees	72,146			(18,491		)	53,655
Provision for credit losses	66,482			—			66,482
Operating interest	38,407			—			38,407
Depreciation and amortization	79,935			—			79,935
Total cost of services	566,420			(18,491		)	547,929
General and administrative	209,319			—			209,319
Sales and marketing	168,504			60,730			229,234
Depreciation and amortization	119,870			—			119,870
Impairment charges	5,649			—			5,649
Operating income	380,428			210			380,638
Financing interest expense	(105,023		)	—			(105,023		)
Net foreign currency loss	(38,800		)	—			(38,800		)
Non-cash adjustments related to tax receivable agreement	(775		)	—			(775		)
Net unrealized gain on financial instruments	2,579			—			2,579
Income before income taxes	238,409			210			238,619
Income taxes	68,781			62			68,843
Net income	169,628			148			169,776
Less: Net income from non-controlling interest	1,481			—			1,481
Net income attributable to shareholders	$	168,147		$	148		$	168,295

Contract with Customer, Asset and Liability

The following table provides information about these contract assets and liabilities from contracts with customers. Our contract assets and liabilities are reported in a net position on a contract-by-contract basis at the end of each reporting period.

(In thousands)
Contract balance	Location on the consolidated balance sheets	December 31, 2018		January 1, 2018
Receivables1	Accounts receivable, net	$	32,949	$	30,386
Contract assets	Prepaid expenses and other current assets	$	3,819	$	7,053
Contract assets	Other assets	$	19,232	$	49,068
Contract liabilities	Other current liabilities	$	7,612	$	26,592

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction

The following table includes revenue expected to be recognized in the future related to remaining performance obligations at the end of the reporting period.

(In thousands)	2019		2020		2021		2022		2023		Thereafter		Total
Minimum monthly fees1	$	61,969	$	38,319	$	20,738	$	11,003	$	2,511	$	118	$	134,658
Professional services2	13,348		675		—		—		—		—		14,023
Total remaining performance obligations	$	75,317	$	38,994	$	20,738	$	11,003	$	2,511	$	118	$	148,681

¹ The transaction price allocated to the remaining performance obligations represents the minimum monthly fees on certain service contracts, which contain substantive termination penalties that require the counterparty to pay the Company for the aggregate remaining minimum monthly fees upon an early termination for convenience.

² Includes software development projects and other services sold subsequent to the core offerings, to which the customer is contractually obligated.

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Acquisitions (Tables)

12 Months Ended

Dec. 31, 2018

Business Combinations [Abstract]

Schedule of Business Acquisitions, by Acquisition

The following represents the components and final allocation of the purchase price:

	As Reported December 31, 2016			Measurement Period Adjustments			As Reported, Final
Total consideration, net of cash acquired	$	1,444,235		$	—		$	1,444,235
Less:
Accounts receivable	162,684			—			162,684
Property and equipment	2,387			1			2,388
Customer relationships(a)(b)	842,700			(1,300		)	841,400
Developed technologies(a)(c)	32,120			—			32,120
Trademarks and trade names(a)(d)	13,700			—			13,700
Deferred income tax assets	34,992			6,352			41,344
Other assets	—			739			739
Accounts payable	(153,777		)	248			(153,529		)
Accrued expenses	(128,267		)	9,361			(118,906		)
Deferred income tax liabilities	(91,194		)	28,071			(63,123		)
Recorded goodwill(a)	$	728,890		$	(43,472	)	$	685,418

^(a) $1.2 billion in goodwill and other intangible assets recorded from this business combination were allocated to our Fleet Solutions segment, the remaining $337.3 million was allocated to our Travel and Corporate Solutions segment.

^(b) Weighted average life – 8.1 years.

^(c) Weighted average life – 2.0 years.

^(d) Weighted average life – 7.7 years.

^{(b) (c) (d)} The weighted average life of these amortized intangible assets is 7.9 years.

The following is a summary of the allocation of the purchase price to the assets and liabilities acquired:

(In thousands)	As Reported December 31, 2017			Measurement Period Adjustments			As Reported, Final
Total consideration	$	129,828		$	—		$	129,828
Less:
Cash	15,546			—			15,546
Accounts receivable	4,171			100			4,271
Property and equipment	2,530			(1,329		)	1,201
Customer relationships(a)	15,000			200			15,200
Developed technologies(b)	24,100			—			24,100
Trademarks and trade names(c)	1,460			10			1,470
In-process research and development	—			21,600			21,600
Other liabilities	(685		)	(772		)	(1,457		)
Recorded goodwill	$	67,706		$	(19,809	)	$	47,897

^(a) Weighted average life – 9.0 years.

^(b) Weighted average life – 3.4 years.

^(c) Weighted average life – 4.3 years.

^{(a) (b) (c)} The weighted average life of these amortized intangible assets is 5.5 years.

Business Acquisition, Pro Forma Information

The following represents unaudited pro forma operational results as if the acquisition had occurred as of January 1, 2015:

	Year Ended December 31, 2016
Total revenues	$	1,083,908
Net income attributable to shareholders	$	5,683
Pro forma net income attributable to shareholders per common share:
Basic	$	0.13
Diluted	$	0.13

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Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2018

Receivables [Abstract]

Schedule of Concentration of Credit Risk

The following table presents the outstanding balance of trade accounts receivable that are less than 30 and 60 days past due, in each case as a percentage of total trade accounts receivable:

	December 31,
Delinquency Status	2018		2017
29 days or less past due	95	%	95	%
59 days or less past due	98	%	97	%

Changes in Reserves for Credit Losses Related to Accounts Receivable

The following table presents changes in the accounts receivable allowances:

	Year ended December 31,
(In thousands)	2018			2017			2016
Balance, beginning of year	$	33,387		$	21,564		$	14,672
Provision for credit losses1	66,482			64,218			33,458
Charges to other accounts2	19,067			16,869			10,166
Charge-offs	(78,323		)	(77,229		)	(43,309		)
Recoveries of amounts previously charged-off	6,854			7,526			6,201
Currency translation	(519		)	439			376
Balance, end of year	$	46,948		$	33,387		$	21,564

¹ During 2017, the majority of the increase relates to higher incidences of magnetic stripe card skimming fraud.

² The Company earns revenue by assessing monthly finance fees on accounts with overdue balances. These fees are recognized as revenue at the time the fees are assessed. The finance fee is calculated using the greater of a minimum charge or a stated late fee rate multiplied by the outstanding balance that is subject to a late fee charge. On occasion, these fees are waived to maintain relationship goodwill. Charges to other accounts represents the offset against the late fee revenue recognized when the Company establishes a reserve for such waived amounts.

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Investment Securities (Tables)

12 Months Ended

Dec. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Available-For-Sale Securities

The Company’s investment securities as of December 31, 2018 and 2017, are presented below:

(In thousands)	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value(a)
2018
Mortgage-backed securities	$	255	$	5	$	—	$	260
Asset-backed securities	281		—		2		279
Municipal bonds	411		—		7		404
Fixed-income mutual fund(b)(c)	24,656		—		1,193		23,463
Total investment securities	$	25,603	$	5	$	1,202	$	24,406
2017
Mortgage-backed securities	$	325	$	4	$	24	$	305
Asset-backed securities	350		—		5		345
Municipal bonds	539		1		6		534
Fixed-income mutual fund(b)(c)	22,888		—		714		22,174
Total investment securities	$	24,102	$	5	$	749	$	23,358

^(a) The Company’s techniques used to measure the fair value of its investments are discussed in Note 18, Fair Value.

^(b) Not deemed available for current operations and have been classified as other assets

^(c)Excludes $6.4 million and $6.8 million in equity securities designated as trading as of December 31, 2018and 2017, respectively, included in prepaid expenses and other current assets and other assets on the consolidated balance sheets. See Note 17, Employee Benefit Plans, for additional information.

Maturity Dates Of Available-For-Sale Securities

The contractual maturity dates of the Company’s investment securities are as follows:

	December 31,
	2018				2017
(In thousands)	Cost		Fair Value		Cost		Fair Value
Due after 5 years through year 10	$	311	$	309	$	390	$	385
Due after 10 years	381		374		499		494
Mortgage-backed securities with original maturities of 30 years	255		260		325		305
Equity securities with no maturity dates	24,656		23,463		22,888		22,174
Total	$	25,603	$	24,406	$	24,102	$	23,358

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Property, Equipment and Capitalized Software, Net (Tables)

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

Schedule Of Property, Equipment And Capitalized Software, Net

Property, equipment and capitalized software, net consist of the following:

	December 31,
(In thousands)	2018			2017
Furniture, fixtures and equipment	$	78,167		$	69,695
Computer software	355,209			308,362
Leasehold improvements	25,516			23,248
Capital leases	—			759
Construction in progress	36,726			26,772
Total	495,618			428,836
Less: accumulated depreciation and amortization	(307,750		)	(264,928		)
Total property, equipment and capitalized software, net	$	187,868		$	163,908

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Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Goodwill

The changes in goodwill during the period January 1 to December 31, 2018 were as follows:

(In thousands)	Fleet Solutions Segment			Travel and Corporate Solutions Segment			Health and Employee Benefit Solutions Segment			Total
Gross goodwill, January 1, 2018	$	1,269,718		$	265,041		$	353,508		$	1,888,267
Acquisition adjustments for AOC	—			(19,809		)	—			(19,809		)
Foreign currency translation	(18,217		)	(600		)	(3,315		)	(22,132		)
Gross goodwill, December 31, 2018	$	1,251,501		$	244,632		$	350,193		$	1,846,326
Accumulated impairment, January 1, 2018	$	(927	)	$	(11,208	)	$	—		$	(12,135	)
Brazil fleet impairment1	(3,225		)	—			—			(3,225		)
Foreign currency translation	(53		)	1,216			—			1,163
Accumulated impairment, December 31, 2018	$	(4,205	)	$	(9,992	)	$	—		$	(14,197	)
Net goodwill, January 1, 2018	$	1,268,791		$	253,833		$	353,508		$	1,876,132
Net goodwill, December 31, 2018	$	1,247,296		$	234,640		$	350,193		$	1,832,129

¹During our annual goodwill assessment completed in the fourth quarter of 2018, we assessed the impact of a customer loss significant to our Brazil fleet reporting unit. The fair value of this reporting unit was derived using a combination of present value of estimated cash flows and prices from comparable businesses. The calculated fair value was then compared to the reporting unit’s carrying value, which resulted in the Company recording a $3.2 million goodwill impairment charge. There is no remaining net goodwill associated with this reporting unit.

The changes in goodwill during the period January 1 to December 31, 2017 were as follows:

(In thousands)	Fleet Solutions Segment			Travel and Corporate Solutions Segment			Health and Employee Benefit Solutions Segment			Total
Gross goodwill, January 1, 2017	$	1,293,138		$	202,771		$	353,722		$	1,849,631
Acquisition adjustments for EFS	(37,296		)	(6,176		)	—			(43,472		)
Acquisition of AOC	—			67,706			—			67,706
Divestiture of Telapoint	(4,469		)	—			—			(4,469		)
Foreign currency translation	18,345			740			(214		)	18,871
Gross goodwill, December 31, 2017	$	1,269,718		$	265,041		$	353,508		$	1,888,267
Accumulated impairment, January 1, 2017	$	(855	)	$	(10,335	)	$	—		$	(11,190	)
Foreign currency translation	(72		)	(873		)	—			(945		)
Accumulated impairment, December 31, 2017	$	(927	)	$	(11,208	)	$	—		$	(12,135	)
Net goodwill, January 1, 2017	$	1,292,283		$	192,436		$	353,722		$	1,838,441
Net goodwill, December 31, 2017	$	1,268,791		$	253,833		$	353,508		$	1,876,132

Other Intangible Assets

Other intangible assets consist of the following:

	December 31, 2018							December 31, 2017
(in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Definite-lived intangible assets
Acquired software and developed technology	$	216,325	$	(113,694	)	$	102,631	$	203,861	$	(96,197	)	$	107,664
Customer relationships	1,243,589		(360,593		)	882,996		1,257,232		(269,216		)	988,016
Licensing agreements	32,962		(18,303		)	14,659		34,546		(15,029		)	19,517
Patent	2,332		(2,044		)	288		2,581		(2,076		)	505
Trade name	43,907		(14,421		)	29,486		44,079		(10,309		)	33,770
	$	1,539,115	$	(509,055	)	$	1,030,060	$	1,542,299	$	(392,827	)	$	1,149,472
Indefinite-lived intangible assets
Trademarks, trade names and brand names						4,134							4,575
Total						$	1,034,194						$	1,154,047

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The following table presents the estimated amortization expense related to the definite-lived intangible assets listed above for each of the next five fiscal years:

(in thousands)
2019	$	123,656
2020	$	113,304
2021	$	100,319
2022	$	89,585
2023	$	80,041

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Accounts Payable (Tables)

12 Months Ended

Dec. 31, 2018

Payables and Accruals [Abstract]

Schedule Of Accounts Payable

Accounts payable consists of:

	December 31,
(In thousands)	2018		2017
Merchant payables	$	690,651	$	752,371
Other payables	124,091		90,809
Accounts payable	$	814,742	$	843,180

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Deposits, Borrowed Federal Funds and Other Debt (Tables)

12 Months Ended

Dec. 31, 2018

Banking and Thrift [Abstract]

Schedule of Deposits

The following table presents the composition of deposits:

	December 31,
(in thousands)	2018			2017
Interest-bearing brokered money market deposits	$	283,790		$	285,899
Customer deposits	138,072			70,211
Certificates of deposits with maturities within 1 year (a)	505,582			630,879
Short-term deposits	927,444			986,989
Certificates of deposit with maturities greater than 1 year and less than 5 years (a)	345,231			306,865
Total Deposits	$	1,272,675		$	1,293,854
Weighted average cost of funds on certificates of deposit outstanding	2.36		%	1.51		%
Weighted average cost of interest-bearing brokered money market deposits	2.49		%	1.49		%

^(a) Certificates of deposit are classified as short-term or long-term within our consolidated balance sheets based on maturity date.

Schedule of Average Interest Rates

The following table presents the average interest rates for deposits and interest-bearing money market deposits:

	Year ended December 31,
(in thousands)	2018		2017		2016
Average interest rate:
Deposits	1.91	%	1.22	%	0.94	%
Interest-bearing money market deposits	2.03	%	1.12	%	0.50	%

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Derivative Instruments (Tables)

12 Months Ended

Dec. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions

The notional amounts, fixed interest rates and maturities of the interest rate swap agreements are as follows:

	Tranche A	Tranche B	Tranche C	Tranche D	Tranche E
Notional amount at inception (in thousands)	$300,000	$200,000	$400,000	$150,000	$250,000
Amortization	N/A	N/A	5% annually	N/A	N/A
Maturity date	12/30/2022	12/30/2022	12/31/2020	12/31/2020	12/31/2018
Fixed interest rate	2.204%	2.212%	1.108%	1.125%	0.896%

Location and Amounts of Derivative Gains and Losses

The following table presents information on the location and amounts of derivative instruments gains and losses:

(In thousands)		Year ended December 31,
Derivatives Not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income Statement	2018			2017			2016
Interest rate swap agreements – unrealized portion	Net unrealized gain on financial instruments	$	3,772		$	1,314		$	12,908
Interest rate swap agreements – realized portion	Financing interest expense	$	(6,160	)	$	(214	)	$	—
Commodity contracts	Net realized and unrealized gains on fuel price derivatives	$	—		$	—		$	711

Changes in Fair Value of Fuel Price Derivatives

The following table summarizes the changes in fair value of the fuel price derivatives which have been recorded on the consolidated statements of income:

(In thousands)	Year ended December 31, 2016
Realized gains	$	5,718
Change in unrealized fuel price derivatives	(5,007		)
Net realized and unrealized gains on fuel price derivatives	$	711

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Components Of Income Before Income Taxes

Income before income taxes consisted of the following:

	Year ended December 31,
(In thousands)	2018		2017		2016
United States	$	194,770	$	147,240	$	32,622
Foreign	43,849		27,176		16,308
Total	$	238,619	$	174,416	$	48,930

Components Of Income Tax Expense (Benefit)

Income taxes from continuing operations consisted of the following for the years ended December 31:

(In thousands)	United States			State and Local			Foreign			Total
2018
Current	$	16,027		$	3,566		$	17,916		$	37,509
Deferred	$	29,520		$	8,016		$	(6,202	)	$	31,334
Income taxes										$	68,843
2017
Current	$	2,254		$	3,687		$	13,743		$	19,684
Deferred	$	(11,748	)	$	10,842		$	(3,328	)	$	(4,234	)
Income taxes										$	15,450
2016
Current	$	(1,232	)	$	3,033		$	7,292		$	9,093
Deferred	$	21,565		$	(5,106	)	$	3,040		$	19,499
Income taxes										$	28,592

Reconciliation Of Provision Of Income Taxes

The reconciliation between the income tax computed by applying the U.S. federal statutory rate and the reported effective tax rate on income from continuing operations is as follows:

	Year ended December 31,
(In thousands except for tax rates)	2018		2017		2016
Federal statutory rate	21.0	%	35.0	%	35.0	%
State income taxes (net of federal income tax benefit)	2.2		2.0		1.9
Foreign income tax rate differential	1.1		(0.7	)	(6.5	)
Revaluation of deferred tax assets for foreign and state tax rate changes, net	(1.3	)	0.4		(1.6	)
Research and development credit	(0.2	)	—		(0.9	)
Tax reserves	2.0		0.3		(7.6	)
Withholding taxes	0.2		0.2		0.5
2017 Tax Act	(0.2	)	(34.8	)	—
Change in valuation allowance	4.5		4.6		4.0
Nondeductible expenses	1.4		0.5		27.8
Incremental tax benefit from share-based compensation awards	(1.7	)	(0.9	)	—
GILTI	0.8		—		—
Other	(0.9	)	2.3		5.8
Effective tax rate	28.9	%	8.9	%	58.4	%

Deferred Tax Assets And Liabilities

The tax effects of temporary differences in the recognition of income and expense for tax and financial reporting purposes that give rise to significant portions of the deferred tax assets and the deferred tax liabilities are presented below:

	December 31,
(In thousands)	2018			2017
Deferred assets related to:
Reserve for credit losses	$	10,357		$	6,957
Tax credit carryforwards	986			1,283
Stock-based compensation, net	10,937			9,858
Net operating loss carry forwards	48,235			53,721
Accruals	13,142			7,355
Total	$	83,657		$	79,174
Deferred tax liabilities related to:
Other liabilities	$	1,961		$	2,248
Deferred financing costs	3,078			7,219
Property, equipment and capitalized software	28,227			22,315
Intangibles	166,347			140,570
Total	$	199,613		$	172,352
Valuation allowance	26,086			15,349
Deferred income taxes, net	$	(142,042	)	$	(108,527	)

Net Deferred Tax Assets By Jurisdiction

Net deferred tax (liabilities) assets by jurisdiction are as follows:

	December 31,
(In thousands)	2018			2017
United States	$	(151,125	)	$	(113,107	)
Australia	(516		)	(1,000		)
Europe	5,873			7,448
New Zealand	116			188
Brazil	3,202			(1,020		)
Canada	408			(1,036		)
Deferred income taxes, net	$	(142,042	)	$	(108,527	)

Reconciliation Of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of gross unrecognized tax benefits excluding interest and penalties is as follows:

	Year ended December 31,
(In thousands)	2018			2017			2016
Beginning balance	$	5,898		$	5,458		$	4,897
Increases related to prior year tax positions	4,831			1,332			4,960
Increases related to current year tax positions	—			363			377
Decreases related to prior year tax positions	—			—			(431		)
Settlements	(1,733		)	(1,255		)	—
Lapse of statute	—			—			(4,345		)
Ending balance	$	8,996		$	5,898		$	5,458

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Financing and Other Debt (Tables)

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Schedule of Outstanding Borrowings

The following table summarizes the Company’s total outstanding debt:

	Year ended December 31,
(In thousands)	2018			2017
Revolving line-of-credit facility under 2016 Credit Agreement (a)	$	—		$	136,535
Term loans under 2016 Credit Agreement (a)	1,745,084			1,602,875
Notes outstanding(a)	400,000			400,000
Securitized debt	106,872			126,901
Participation debt	114,849			184,990
WEX Latin America debt	16,242			9,747
Total gross debt	$	2,383,047		$	2,461,048
Current portion of gross debt	$	223,241		$	404,233
Less: Unamortized debt issuance costs	(6,724		)	(7,015		)
Short-term debt, net	$	216,517		$	397,218
Long-term gross debt	$	2,159,806		$	2,056,815
Less: Unamortized debt issuance costs	(25,883		)	(29,063		)
Long-term debt, net	$	2,133,923		$	2,027,752
Supplemental information under 2016 Credit Agreement:
Letters of credit (b)	$	53,514		$	27,500
Remaining borrowing capacity on revolving credit facility(c)	$	666,486		$	405,965

^(a) See Note 18, Fair Value, for more information regarding the Company’s 2016 Credit Agreement and Notes.

^(b) Collateral for lease agreements, virtual card and fuel payment processing activity at the Company’s foreign subsidiaries.

^(c) Contingent on maintaining compliance with the financial covenants as defined in the Company’s 2016 Credit Agreement

Summary of Annual Principal Payments

The table below summarizes the Company’s annual principal payments on its total debt for each of the next five years:

2019	$	223,241
2020	$	85,278
2021	$	35,278
2022	$	35,278
2023	$	2,003,972

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Fair Value (Tables)

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Assets And Liabilities Measured At Fair Value

The following table presents the Company’s financial instruments measured at fair value and the related hierarchy levels:

		December 31,
(In thousands)	Fair Value Hierarchy	2018		2017
Financial Assets:
Money market funds(a)	1	$	71,228	$	—
Investment securities
Municipal bonds	2	$	404	$	534
Asset-backed securities	2	279		345
Mortgage-backed securities	2	260		305
Fixed-income mutual fund	1	23,463		22,174
Total Investment securities		$	24,406	$	23,358
Executive deferred compensation plan trust(b)	1	$	6,398	$	6,798
Interest rate swaps(c)	2	$	17,994	$	19,595
Liabilities:
Interest rate swaps(d)	2	$	—	$	5,373

^(a) The fair value is recorded in cash and cash equivalents.

^(b) The fair value is recorded in prepaid expenses and other current assets and other assets based on the timing of payments obligations.

^(c) The fair value is recorded in prepaid expenses and other current assets or other assets depending on the timing of expected discounted cash flows.

^(d) The fair value is recorded in other current liabilities based on the timing of expected discounted cash flows.

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Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Lease Payments

Future minimum lease payments under non-cancelable operating leases are as follows:

2019	$	14,794
2020	16,020
2021	15,186
2022	14,103
2023	11,706
Thereafter	65,628
Total minimum lease payments	$	137,437

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Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule Of Restricted Stock Units

The following is a summary of RSU activity during the year ended December 31, 2018:

Restricted Stock Units
(In thousands except per share data)	Units		Weighted-Average Grant-Date Fair Value
Unvested at January 1, 2018	173		$	98.31
Granted	101		165.88
Vested, including 29 shares withheld for tax (a)	(94	)	98.07
Forfeited	(13	)	110.81
Unvested at December 31, 2018	167		$	138.58

^(a)The Company withholds shares of common stock to pay the minimum required statutory taxes due upon RSU vesting. Cash is then remitted by the Company to the appropriate taxing authority.

Schedule Of Performance Based Restricted Stock Units

The following is a summary of PBRSU activity during the year ended December 31, 2018:

Performance-Based Restricted Stock Units
(In thousands except per share data)	Shares		Weighted-Average Grant-Date Fair Value
Unvested at January 1, 2018	314		$	93.18
Granted	115		158.77
Forfeited	(45	)	96.47
Vested, including 48 shares withheld for tax (a)	(140	)	85.58
Performance adjustment (b)	175		88.99
Unvested at December 31, 2018	419		$	113.58

^(a)The Company withholds shares of common stock to pay the minimum required statutory taxes due upon PBRSU vesting. Cash is then remitted by the Company to the appropriate taxing authority.

Schedule Of Assumptions Used

The table below summarizes the assumptions used to calculate the fair value by year of grant:

	2018			2017			2016
Weighted average expected term (in years)	6.0			6.0			6.0
Weighted average exercise price	$	158.23		$	104.95		$	77.20
Expected stock price volatility	27.35		%	30.67		%	31.93		%
Risk-free interest rate	2.69		%	2.13		%	1.62		%
Weighted average fair value	$	51.27		$	35.58		$	26.14

The table below summarizes the assumptions used to calculate the fair value:    

Exercise price	$	99.69
Expected stock price volatility	31.14		%
Risk-free interest rate	2.18		%
Weighted average fair value of performance options granted	$	28.69

Schedule Of Stock Option Activity

The following is a summary of all stock option activity during the year ended December 31, 2018:

Stock Options
(In thousands, except per share data)	Shares		Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding at January 1, 2018	834		$	97.70
Granted	101		158.23
Exercised	(25	)	91.85
Forfeited or expired	(19	)	103.55
Outstanding at December 31, 2018	891		$	104.62	8.23	$	33,362
Exercisable on December 31, 2018	132		$	91.76	7.24	$	6,379
Vested and expected to vest at December 31, 2018	754		$	106.60	8.40	$	26,947

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Impairment and Restructuring Activities (Tables)

12 Months Ended

Dec. 31, 2018

Restructuring and Related Activities [Abstract]

Restructuring and Related Costs

The following tables present the Company’s restructuring activities by initiative:

2015 Restructuring Initiative	Year Ended December 31,
(In thousands)	2018			2017
Balance, beginning of year	$	2,680		$	5,231
Restructuring (reversals) charges1	(79		)	2,565
Cash paid	(1,734		)	(4,020		)
Other2	(511		)	(1,158		)
Foreign currency translation	(27		)	62
Balance, end of year	$	329		$	2,680

¹ Primarily consists of employee costs in 2017.

² In 2017, the liability was transferred to the 2016 Restructuring Initiative.

2016 Restructuring Initiative	Year Ended December 31,
(In thousands)	2018			2017
Balance, beginning of year	$	738		$	3,662
Restructuring (reversals) charges	111			(1,305		)
Cash paid	(592		)	(3,479		)
Other1	—			1,158
Foreign currency translation	(7		)	702
Balance, end of year	$	250		$	738

¹ In 2017, the liability was transferred from the 2015 Restructuring Initiative.

Acquisition Integration Restructuring Initiative	Year Ended December 31,
(In thousands)	2018			2017
Balance, beginning of year	$	5,093		$	1,764
Restructuring charges1	240			5,879
Cash paid	(5,355		)	(2,650		)
Other	22			107
Foreign currency translation	—			(7		)
Balance, end of year	$	—		$	5,093

¹Primarily consists of office closure costs in 2017.

Total Restructuring Initiatives	Year Ended December 31,
(In thousands)	2018			2017
Balance, beginning of year	$	8,511		$	10,657
Restructuring charges	272			7,139
Cash paid	(7,681		)	(10,149		)
Other	(489		)	107
Foreign currency translation	(34		)	757
Balance, end of year	$	579		$	8,511

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Segment Information (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Reportable Segment Results

The following tables disaggregate our consolidated revenue:

	Year Ended December 31, 2018
(in thousands)	Fleet Solutions		Travel and Corporate Solutions		Health and Employee Benefit Solutions		Total
Payment processing revenue	$	464,980	$	203,289	$	55,722	$	723,991
Account servicing revenue	162,662		37,262		108,172		308,096
Finance fee revenue	190,528		1,391		16,708		208,627
Other revenue	156,970		61,402		33,553		251,925
Total revenues	$	975,140	$	303,344	$	214,155	$	1,492,639
Interest income	$	3,503	$	958	$	11,706	$	16,167

	Year Ended December 31, 2017
(In thousands)	Fleet Solutions		Travel and Corporate Solutions		Health and Employee Benefit Solutions		Total
Payment processing revenue	$	360,158	$	158,660	$	50,348	$	569,166
Account servicing revenue	165,083		7,531		103,956		276,570
Finance fee revenue	159,336		760		28,696		188,792
Other revenue	138,533		57,096		18,420		214,049
Total revenues	$	823,110	$	224,047	$	201,420	$	1,248,577
Interest income	$	3,681	$	717	$	27,507	$	31,905

	Year Ended December 31, 2016
(In thousands)	Fleet Solutions		Travel and Corporate Solutions		Health and Employee Benefit Solutions		Total
Payment processing revenue	$	297,900	$	175,762	$	46,957	$	520,619
Account servicing revenue	127,105		1,247		82,660		211,012
Finance fee revenue	124,725		643		7,600		132,968
Other revenue	92,331		37,595		17,963		147,889
Total revenues	$	642,061	$	215,247	$	155,180	$	1,012,488
Interest income	$	3,053	$	498	$	13,581	$	17,132

Reconciliation Of Adjusted Net Income To Net Income

The following table reconciles segment adjusted operating income to income before income taxes:

	Year ended December 31,
(In thousands)	2018			2017			2016
Segment adjusted operating income
Fleet Solutions	$	459,646		$	369,872		$	254,225
Travel and Corporate Solutions	135,379			96,660			80,699
Health and Employee Benefit Solutions	44,931			46,846			37,745
Total segment adjusted operating income	$	639,956		$	513,378		$	372,669
Reconciliation:
Total segment adjusted operating income	$	639,956		$	513,378		$	372,669
Less:
Unallocated corporate expenses	58,095			53,753			46,199
Acquisition-related intangible amortization	138,186			153,810			97,829
Other acquisition and divestiture related items	4,143			5,000			20,879
Debt restructuring	4,425			2,563			—
Stock-based compensation	35,103			30,487			19,742
Restructuring and other costs	13,717			11,129			13,995
Impairment charges and asset write-offs	5,649			44,171			—
Gain on divestiture	—			(20,958		)	—
Vendor settlement	—			—			15,500
Operating income	$	380,638		$	233,423		$	158,525
Financing interest expense	(105,023		)	(107,067		)	(113,418		)
Net foreign currency (loss) gain	(38,800		)	31,487			(9,233		)
Net realized and unrealized gains on fuel price derivatives	—			—			711
Non-cash adjustments related to tax receivable agreement	(775		)	15,259			(563		)
Net unrealized gains on financial instruments	2,579			1,314			12,908
Income before income taxes	$	238,619		$	174,416		$	48,930

Schedule Of Revenue By Geographic Data

Net property, equipment and capitalized software by principal geographic area was as follows:

	Year ended December 31,
(In thousands)	2018		2017		2016
United States	$	176,111	$	148,490	$	146,165
International1	11,757		15,418		21,113
Net property, equipment and capitalized software	$	187,868	$	163,908	$	167,278

¹ No single country, other than the United States, made up more than 5 percent of total net property, equipment and capitalized software for any of the years presented.

Revenue by principal geographic area, based on the country in which the sale originated, was as follows:

	Year ended December 31,
(In thousands)	2018		2017		2016
United States	$	1,287,405	$	1,037,322	$	839,917
Australia	60,518		62,030		53,068
Other international1	144,716		149,225		119,503
Total revenues	$	1,492,639	$	1,248,577	$	1,012,488

¹ No single country, other than the United States and Australia, made up more than 5 percent of total revenues for any of the years presented.

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Supplementary Regulatory Capital Disclosure (Tables)

12 Months Ended

Dec. 31, 2018

Banking and Thrift [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

The following table presents WEX Bank’s actual and regulatory minimum capital amounts and ratios:    

	Actual Amount		Ratio		Minimum for Capital Adequacy Purposes Amount		Ratio		Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount		Ratio
December 31, 2018
Total Capital to risk-weighted assets	$	323,178	12.82	%	$	201,749	8.00	%	$	252,186	10.00	%
Tier 1 Capital to average assets	$	305,734	10.88	%	$	112,401	4.00	%	$	140,501	5.00	%
Common equity to risk-weighted assets	$	305,734	12.12	%	$	113,484	4.50	%	$	163,921	6.50	%
Tier 1 Capital to risk-weighted assets	$	305,734	12.12	%	$	151,312	6.00	%	$	201,749	8.00	%
December 31, 2017
Total Capital to risk-weighted assets	$	316,129	13.38	%	$	188,991	8.00	%	$	236,239	10.00	%
Tier 1 Capital to average assets	$	304,555	12.50	%	$	97,452	4.00	%	$	121,815	5.00	%
Common equity to risk-weighted assets	$	304,555	12.89	%	$	106,308	4.50	%	$	153,555	6.50	%
Tier 1 Capital to risk-weighted assets	$	304,555	12.89	%	$	141,743	6.00	%	$	188,991	8.00	%

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Quarterly Financial Results (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Summary Of Quarterly Financial Results

Summarized quarterly results for the years ended December 31, 2018 and 2017, which have been changed to reflect the Revision as described in Note 1, Summary of Significant Accounting Policies, are as follows:

	Three months ended
(In thousands, except per share data)	March 31		June 30		September 30		December 31
2018
Total revenues	$	354,028	$	370,798	$	386,617	$	381,196
Operating income	$	83,859	$	100,424	$	102,564	$	93,791
Net income attributable to shareholders	$	51,970	$	38,424	$	56,644	$	21,257
Earnings per share:
Basic	$	1.21	$	0.89	$	1.31	$	0.49
Diluted	$	1.20	$	0.88	$	1.30	$	0.49
2017
Total revenues	$	292,453	$	303,868	$	320,677	$	331,579
Operating income	$	56,701	$	52,447	$	50,819	$	73,456
Net income attributable to shareholders(a)	$	26,879	$	19,770	$	26,232	$	87,181
Earnings per share:(a)
Basic	$	0.63	$	0.46	$	0.61	$	2.03
Diluted	$	0.62	$	0.46	$	0.61	$	2.02

^(a) The three months ended December 31, 2017 includes a tax benefit of $60.6 million as a result of the 2017 Tax Act.

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Summary of Significant Accounting Policies - Schedules of Immaterial Error Corrections (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 01, 2016	Dec. 31, 2015
Income Statement [Abstract]
Total revenues		$ 386,617	$ 370,798	$ 354,028	$ 331,579	$ 320,677	$ 303,868	$ 292,453	$ 1,492,639	$ 1,248,577	$ 1,012,488
Total cost of services									547,929	514,285	458,807
Provision for credit losses									66,482	64,218	33,458
General and administrative									209,319	184,339	185,557
Net foreign currency (loss) gain									(38,800)	31,487	(9,233)
Income taxes									$ 68,843	$ 15,450	$ 28,592
Basic (in dollars per share)		$ 1.31	$ 0.89	$ 1.21	$ 2.03	$ 0.61	$ 0.46	$ 0.63	$ 3.90	$ 3.72	$ 0.58
Diluted (in dollars per share)		$ 1.30	$ 0.88	$ 1.20	$ 2.02	$ 0.61	$ 0.46	$ 0.62	$ 3.86	$ 3.71	$ 0.57
Operating income		$ 102,564	$ 100,424	$ 83,859	$ 73,456	$ 50,819	$ 52,447	$ 56,701	$ 380,638	$ 233,423	$ 158,525
Net income									169,776	158,966	20,338
Net income attributable to shareholders									168,295	160,062	23,499
Statement of Financial Position [Abstract]
Cash and cash equivalents	$ 541,498				503,519				541,498	503,519	190,930		$ 278,158
Accounts receivable, net of allowances	2,584,203				2,455,907				2,584,203	2,455,907
Prepaid expenses and other current assets	149,021				77,532				149,021	77,532
Deferred income taxes, net	9,643				7,721				9,643	7,721
Other assets	284,229				257,641				284,229	257,641
Accounts payable	814,742				843,180				814,742	843,180
Other current liabilities	27,067				33,123				27,067	33,123
Deferred income taxes, net	151,685				116,248				151,685	116,248
Other liabilities	32,261				32,045				32,261	32,045
Retained earnings	1,481,593				1,312,660				1,481,593	1,312,660		$ 1,128,953
Accumulated other comprehensive loss	(117,291)				(89,230)				(117,291)	(89,230)		(93,933)
Statement of Cash Flows [Abstract]
Net cash used for operating activities									400,229	135,427	(141,186)
Net cash used for investing activities									(254,175)	(168,054)	(1,160,439)
Effect of exchange rates on cash, cash equivalents and restricted cash										(17,715)	2,791
Cash, cash equivalents and restricted cash	555,031				522,385				555,031	522,385	213,342		296,095
Payment Processing Revenue
Income Statement [Abstract]
Total cost of services									$ 309,450	278,056	270,717
Previously Reported
Income Statement [Abstract]
Total revenues										1,250,548	1,018,460
Provision for credit losses										61,148	33,348
General and administrative										182,092
Net foreign currency (loss) gain										29,919	(7,665)
Income taxes										$ 19,525	$ 29,625
Basic (in dollars per share)										$ 3.73	$ 1.49
Diluted (in dollars per share)										$ 3.72	$ 1.48
Net income										$ 159,170	$ 57,476
Net income attributable to shareholders										160,266	60,637
Statement of Financial Position [Abstract]
Cash and cash equivalents					508,072					508,072
Accounts receivable, net of allowances					2,517,980					2,517,980
Prepaid expenses and other current assets					69,413					69,413
Deferred income taxes, net					7,752					7,752
Other assets					253,088					253,088
Accounts payable					811,362					811,362
Other current liabilities					24,795					24,795
Deferred income taxes, net					119,283					119,283
Other liabilities					32,683					32,683
Retained earnings					1,404,683					1,404,683		1,183,634
Accumulated other comprehensive loss					(90,795)					(90,795)		(103,451)
Statement of Cash Flows [Abstract]
Net cash used for operating activities										129,403	(146,656)
Net cash used for investing activities										(163,501)
Effect of exchange rates on cash, cash equivalents and restricted cash										(11,691)	6,430
Cash, cash equivalents and restricted cash					526,938					526,938			297,926
Previously Reported | Payment Processing Revenue
Income Statement [Abstract]
Total cost of services										279,497	240,196
Restatement Adjustment
Income Statement [Abstract]
Total revenues	$ (43)	$ 3,927	$ (78)	$ (801)	$ 274	$ (3,325)	$ (16)	$ 1,096
Basic (in dollars per share)	$ 0.09	$ (0.02)	$ (0.02)	$ 0.08	$ 0.17	$ (0.18)	$ 0.06	$ (0.06)
Diluted (in dollars per share)	$ 0.09	$ (0.01)	$ (0.02)	$ 0.08	$ 0.17	$ (0.18)	$ 0.06	$ (0.06)
Operating income	$ 574	$ 1,876	$ (2,487)	$ 5,497	$ 6,242	$ (12,904)	$ 4,866	$ (4,051)
Net income	$ 3,972	$ (678)	$ (874)	$ 3,337	7,377	$ (7,739)	$ 2,680	$ (2,522)
Brazil Adjustments | Restatement Adjustment
Income Statement [Abstract]
Total revenues										(3,325)	0
Provision for credit losses										3,070	110
General and administrative										0
Net foreign currency (loss) gain										0	0
Income taxes										$ (2,023)	$ 0
Basic (in dollars per share)										$ (0.07)	$ (0.75)
Diluted (in dollars per share)										$ (0.07)	$ (0.75)
Net income										$ (2,931)	$ (30,631)
Net income attributable to shareholders										(2,931)	(30,631)
Statement of Financial Position [Abstract]
Cash and cash equivalents					0					0
Accounts receivable, net of allowances					(56,393)					(56,393)
Prepaid expenses and other current assets					0					0
Deferred income taxes, net					848					848
Other assets					0					0
Accounts payable					29,570					29,570
Other current liabilities					(1,629)					(1,629)
Deferred income taxes, net					455					455
Other liabilities					0					0
Retained earnings					(85,506)					(85,506)		(51,943)
Accumulated other comprehensive loss					1,565					1,565		9,518
Statement of Cash Flows [Abstract]
Net cash used for operating activities										0	1,831
Net cash used for investing activities										0
Effect of exchange rates on cash, cash equivalents and restricted cash										0	0
Cash, cash equivalents and restricted cash					0					0			(1,831)
Brazil Adjustments | Restatement Adjustment | Payment Processing Revenue
Income Statement [Abstract]
Total cost of services										(1,441)	30,521
Other Immaterial Adjustments | Restatement Adjustment
Income Statement [Abstract]
Total revenues										1,354	(5,972)
Provision for credit losses										0	0
General and administrative										2,247
Net foreign currency (loss) gain										1,568	(1,568)
Income taxes										$ (2,052)	$ (1,033)
Basic (in dollars per share)										$ 0.06	$ (0.16)
Diluted (in dollars per share)										$ 0.06	$ (0.16)
Net income										$ 2,727	$ (6,507)
Net income attributable to shareholders										2,727	(6,507)
Statement of Financial Position [Abstract]
Cash and cash equivalents					(4,553)					(4,553)
Accounts receivable, net of allowances					(5,680)					(5,680)
Prepaid expenses and other current assets					8,119					8,119
Deferred income taxes, net					(879)					(879)
Other assets					4,553					4,553
Accounts payable					2,248					2,248
Other current liabilities					9,957					9,957
Deferred income taxes, net					(3,490)					(3,490)
Other liabilities					(638)					(638)
Retained earnings					(6,517)					(6,517)		(2,738)
Accumulated other comprehensive loss					0					0		$ 0
Statement of Cash Flows [Abstract]
Net cash used for operating activities										6,024	3,639
Net cash used for investing activities										(4,553)
Effect of exchange rates on cash, cash equivalents and restricted cash										(6,024)	(3,639)
Cash, cash equivalents and restricted cash					$ (4,553)					(4,553)			$ 0
Other Immaterial Adjustments | Restatement Adjustment | Payment Processing Revenue
Income Statement [Abstract]
Total cost of services										$ 0	$ 0

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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Assets	$ 6,770,595	$ 6,688,866
Total liabilities	4,974,671	5,058,766
Goodwill	1,832,129	1,876,132	$ 1,838,441
Restricted cash	13,533	18,866
Goodwill impairment	3,225
Advertising expense	16,300	17,100	14,900
Unrealized gains (losses) on investment securities (less than)		1,000	1,000
Restatement Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Assets				$ 3,700
Total liabilities				$ 3,700
European Fleet
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Goodwill impairment	180,000
Brazil Fleet
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Goodwill impairment	250,000
Fleet solutions
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Goodwill	1,247,296	1,268,791	1,292,283
Goodwill impairment	3,225
Fleet solutions | European Fleet
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Goodwill	35,800
Fleet solutions | Brazil Fleet
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Goodwill impairment	(3,200)
Health and Employee Benefit Solutions
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Goodwill	350,193	$ 353,508	$ 353,722
Goodwill impairment	0
Health and Employee Benefit Solutions | Brazil Fleet
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Goodwill	$ 14,300

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Summary of Significant Accounting Policies - Estimated Useful Lives (Details)	12 Months Ended
	Dec. 31, 2018
Furniture, fixtures and equipment | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment useful lives	3 years
Furniture, fixtures and equipment | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment useful lives	5 years
Internal-use computer software | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment useful lives	1 year 6 months
Internal-use computer software | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment useful lives	7 years
Computer software | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment useful lives	3 years

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Summary of Significant Accounting Policies - Summary of Capitalized Software (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Amounts capitalized for internal-use computer software (including work-in-process)	$ 46,382	$ 50,682	$ 55,379
Amounts expensed for amortization of internal-use computer software	$ 38,632	$ 32,582	$ 27,581

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Summary of Significant Accounting Policies - Weighted Average Common Shares Outstanding Used to Calculate Earnings Per Share (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Net income attributable to shareholders	$ 168,295	$ 160,062	$ 23,499
Weighted average common shares outstanding – Basic (in shares)	43,156	42,977	40,809
Dilutive impact of share based compensation awards (in shares)	418	128	105
Weighted average common shares outstanding – Diluted (in shares)	43,574	43,105	40,914

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Recent Accounting Pronouncements (Details) $ in Thousands	3 Months Ended							12 Months Ended
	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2018 USD ($) segment	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Mar. 31, 2019 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenues	$ 386,617	$ 370,798	$ 354,028	$ 331,579	$ 320,677	$ 303,868	$ 292,453	$ 1,492,639	$ 1,248,577	$ 1,012,488
Number of segments | segment								3
Impact of Topic 606 | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenues								$ 42,449
Fleet Solutions And Travel And Corporate Solutions | Impact of Topic 606 | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenues								60,700
Operating expenses								60,700
Travel and Corporate Solutions
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenues								303,344	224,047	215,247
Travel and Corporate Solutions | Impact of Topic 606 | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenues								(18,500)
Operating expenses								(18,500)
Health and Employee Benefit Solutions
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenues								$ 214,155	201,420	$ 155,180
Health and Employee Benefit Solutions | Impact of Topic 606 | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment				$ 600					$ 600
Scenario, Forecast | Minimum | Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liabilities											$ 73,000
Right-of-use asset											64,000
Scenario, Forecast | Maximum | Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liabilities											83,000
Right-of-use asset											$ 74,000

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Revenue - Impact of Revenue Adoption (Details) - USD ($) $ in Thousands	3 Months Ended							12 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Payment processing revenue								$ 996,763
Account servicing revenue								308,096	$ 276,570	$ 211,012
Finance fee revenue									188,792	132,968
Other revenue								251,925	214,049	147,889
Total revenues	$ 386,617	$ 370,798	$ 354,028	$ 331,579	$ 320,677	$ 303,868	$ 292,453	1,492,639	1,248,577	1,012,488
Total cost of services								547,929	514,285	458,807
Service fees								53,655	72,957	79,367
Provision for credit losses								66,482	64,218	33,458
Operating interest								38,407	24,993	12,386
Depreciation and amortization								79,935	74,061	62,879
General and administrative								209,319	184,339	185,557
Sales and marketing								229,234	163,654	130,827
Depreciation and amortization								119,870	129,663	78,772
Impairment charges and asset write-offs								5,649	44,171	0
Impairment charges and asset write-offs								5,649	44,171	0
Operating income	$ 102,564	$ 100,424	$ 83,859	$ 73,456	$ 50,819	$ 52,447	$ 56,701	380,638	233,423	158,525
Financing interest expense								(105,023)	(107,067)	(113,418)
Net foreign currency loss								(38,800)	31,487	(9,233)
Non-cash adjustments related to tax receivable agreement								(775)	15,259	(563)
Net unrealized gain on financial instruments								2,579	1,314	12,908
Income before income taxes								238,619	174,416	48,930
Income taxes								68,843	15,450	28,592
Net income								169,776	158,966	20,338
Less: Net income (loss) from non-controlling interest								1,481	(1,096)	(3,161)
Net income attributable to shareholders								168,295	160,062	23,499
Prior to Adoption
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Account servicing revenue								308,096
Finance fee revenue								208,627
Other revenue								248,217
Total revenues								1,450,190
Total cost of services								566,420
Service fees								72,146
Provision for credit losses								66,482
Operating interest								38,407
Depreciation and amortization								79,935
General and administrative								209,319
Sales and marketing								168,504
Depreciation and amortization								119,870
Impairment charges and asset write-offs								5,649
Operating income								380,428
Financing interest expense								(105,023)
Net foreign currency loss								(38,800)
Non-cash adjustments related to tax receivable agreement								(775)
Net unrealized gain on financial instruments								2,579
Income before income taxes								238,409
Income taxes								68,781
Net income								169,628
Less: Net income (loss) from non-controlling interest								1,481
Net income attributable to shareholders								168,147
Impact of Topic 606 | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Account servicing revenue								0
Finance fee revenue								0
Other revenue								3,708
Total revenues								42,449
Total cost of services								(18,491)
Service fees								(18,491)
Provision for credit losses								0
Operating interest								0
Depreciation and amortization								0
General and administrative								0
Sales and marketing								60,730
Depreciation and amortization								0
Impairment charges and asset write-offs								0
Operating income								210
Financing interest expense								0
Net foreign currency loss								0
Non-cash adjustments related to tax receivable agreement								0
Net unrealized gain on financial instruments								0
Income before income taxes								210
Income taxes								62
Net income								148
Less: Net income (loss) from non-controlling interest								0
Net income attributable to shareholders								148
Payment Processing Revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Payment processing revenue								723,991	569,166	520,619
Total cost of services								309,450	$ 278,056	$ 270,717
Payment Processing Revenue | Prior to Adoption
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Payment processing revenue								685,250
Total cost of services								309,450
Payment Processing Revenue | Impact of Topic 606 | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Payment processing revenue								38,741
Total cost of services								$ 0

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Revenue - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Non-topic 606 revenue, percent	33.00%
Variable consideration	$ 858.9
Waived fees	19.1	$ 16.9	$ 10.9
Revenue recognized related to contract liabilities	10.5
Reduction in contract assets	32.0
Reduction in contract liabilities	$ 16.0

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Revenue - Summary of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended							12 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Topic 606 revenues								$ 996,763
Non-Topic 606 revenues	$ 386,617	$ 370,798	$ 354,028	$ 331,579	$ 320,677	$ 303,868	$ 292,453	1,492,639	$ 1,248,577	$ 1,012,488
Fleet solutions
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Topic 606 revenues								561,744
Non-Topic 606 revenues								975,140	823,110	642,061
Travel and corporate solutions
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Topic 606 revenues								245,457
Non-Topic 606 revenues								303,344	224,047	215,247
Health and Employee Benefit Solutions
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Topic 606 revenues								189,562
Non-Topic 606 revenues								214,155	201,420	155,180
Payment Processing Revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Topic 606 revenues								723,991	569,166	520,619
Payment Processing Revenue | Fleet solutions
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Topic 606 revenues								464,980	360,158	297,900
Payment Processing Revenue | Travel and corporate solutions
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Topic 606 revenues								203,289	158,660	175,762
Payment Processing Revenue | Health and Employee Benefit Solutions
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Topic 606 revenues								55,722	$ 50,348	$ 46,957
Account Servicing Revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Topic 606 revenues								175,819
Non-Topic 606 revenues								132,277
Account Servicing Revenue | Travel and corporate solutions
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Topic 606 revenues								37,262
Non-Topic 606 revenues								0
Account Servicing Revenue | Health and Employee Benefit Solutions
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Topic 606 revenues								108,172
Non-Topic 606 revenues								0
Finance Fee Revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Non-Topic 606 revenues								208,627
Finance Fee Revenue | Fleet solutions
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Non-Topic 606 revenues								190,528
Finance Fee Revenue | Travel and corporate solutions
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Non-Topic 606 revenues								1,391
Finance Fee Revenue | Health and Employee Benefit Solutions
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Non-Topic 606 revenues								16,708
Other Revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Topic 606 revenues								96,953
Non-Topic 606 revenues								154,972
Total non-Topic 606 revenues
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Non-Topic 606 revenues								495,876
Total non-Topic 606 revenues | Fleet solutions
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Non-Topic 606 revenues								413,396
Total non-Topic 606 revenues | Travel and corporate solutions
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Non-Topic 606 revenues								57,887
Total non-Topic 606 revenues | Health and Employee Benefit Solutions
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Non-Topic 606 revenues								$ 24,593

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Revenue - Contract Assets and Liabilities From Contracts with Customers (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract assets	$ 3,819	$ 7,053
Short-term deposits	927,444		$ 986,989
Accounts receivable
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract assets	32,949	30,386
Other assets
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract assets	19,232	49,068
Other current liabilities
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Short-term deposits	$ 7,612	$ 26,592

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Revenue - Remaining Performance Obligation (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 75,317
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 38,994
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 20,738
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 11,003
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 2,511
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 118
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 148,681
Revenue, remaining performance obligation, expected timing of satisfaction, period
Minimum monthly fees | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 61,969
Minimum monthly fees | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	38,319
Minimum monthly fees | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	20,738
Minimum monthly fees | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	11,003
Minimum monthly fees | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	2,511
Minimum monthly fees | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	118
Minimum monthly fees | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	134,658
Professional services | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	13,348
Professional services | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	675
Professional services | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	0
Professional services | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	0
Professional services | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	0
Professional services | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	0
Professional services | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 14,023

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Acquisitions - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Oct. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Expenses related to acquisitions		$ 2.5	$ 1.0	$ 19.2
Asset acquisition, payments to acquire trade accounts receivable	$ 223.4
Asset acquisition, payments to acquire trade accounts receivable, premium in excess of fair value	162.8
Asset acquisition, payment to escrow	38.9
Noventis
Business Acquisition [Line Items]
Consideration transferred	$ 310.0

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Acquisitions - Summary of AOC Acquisition (Details) - USD ($) $ in Thousands	2 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2017	Sep. 30, 2018	Dec. 31, 2018	Oct. 18, 2017	Dec. 31, 2016
Less:
Recorded goodwill	$ 1,876,132		$ 1,832,129		$ 1,838,441
AOC Acquisition
Less:
Total consideration	129,828	$ 129,828		$ 129,800
Cash	15,546	15,546
Accounts receivable	4,171	4,271
Property and equipment	2,530	1,201
Other liabilities	(685)	(1,457)
Recorded goodwill	67,706	47,897
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract]
Total consideration		0
Cash		0
Accounts receivable		100
Property and equipment		(1,329)
Other liabilities		(772)
Recorded goodwill		(19,809)	$ (19,809)
Weighted average life			5 years 6 months
Total revenues	6,700
Net loss before taxes	600
Customer relationships | AOC Acquisition
Less:
Intangible assets	15,000	15,200
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract]
Intangible assets		200
Weighted average life			9 years
Developed technologies | AOC Acquisition
Less:
Intangible assets	24,100	24,100
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract]
Intangible assets		0
Weighted average life			3 years 5 months
Trademarks and Trade names | AOC Acquisition
Less:
Intangible assets	1,460	1,470
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract]
Intangible assets		10
Weighted average life			4 years 4 months
In Process Research and Development | AOC Acquisition
Business Acquisition [Line Items]
Acquired processing platform		21,600
Less:
Intangible assets	$ 0	21,600
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract]
Intangible assets		$ 21,600

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Acquisitions - Summary of EFS Acquisition (Details) - USD ($) $ / shares in Units, $ in Thousands		6 Months Ended		12 Months Ended
	Jul. 01, 2016	Jun. 30, 2017	Dec. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Consideration transferred, shares, amount				$ 0	$ 0	$ 354,953
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract]
Recorded goodwill			$ 1,838,441	1,832,129	1,876,132	1,838,441
Fleet solutions
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract]
Recorded goodwill			1,292,283	1,247,296	1,268,791	1,292,283
Travel and Corporate Solutions
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract]
Recorded goodwill			192,436	234,640	253,833	192,436
Electronic Funds Source LLC
Business Acquisition [Line Items]
Consideration transferred, shares (in shares)	4,012,000
Consideration transferred, shares, amount	$ 355,000
Percent of ownership interest acquired	9.40%
Payments to acquire businesses	$ 1,200,000
Consideration transferred	1,400,000
Cash	$ 93,000
Direct ownership held by other corporation	50.50%
Goodwill, expected tax deductible amount				$ 557,000
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Total consideration		$ 1,444,235	1,444,235			1,444,235
Accounts receivable		162,684	162,684			162,684
Property and equipment		2,388	2,387			2,387
Deferred income tax assets		41,344	34,992			34,992
Other assets		739	0			0
Accounts payable		(153,529)	(153,777)			(153,777)
Accrued expenses		(118,906)	(128,267)			(128,267)
Deferred income tax liabilities		(63,123)	(91,194)			(91,194)
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract]
Total consideration		0
Accounts receivable		0
Property and equipment		1
Deferred income tax assets		6,352
Other assets		739
Accounts payable		248
Accrued expenses		9,361
Deferred income tax liabilities		28,071
Recorded goodwill		(43,472)			(43,472)
Recorded goodwill		685,418	728,890			728,890
Weighted average life	7 years 10 months 24 days
Unaudited pro forma operational results
Total revenues						1,083,908
Net earnings attributable to shareholders						$ 5,683
Pro forma net income attributable to WEX Inc. per common share:
Basic (in dollars per share)						$ 0.13
Diluted (in dollars per share)						$ 0.13
Electronic Funds Source LLC | Fleet solutions
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract]
Recorded goodwill					(37,296)
Recorded goodwill	$ 1,200,000
Total revenues			83,300
Net loss before taxes			5,800
Electronic Funds Source LLC | Travel and Corporate Solutions
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract]
Recorded goodwill					$ (6,176)
Recorded goodwill	$ 337,300
Electronic Funds Source LLC | Customer relationships
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Intangible assets		841,400	842,700			$ 842,700
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract]
Intangible assets		(1,300)
Weighted average life	8 years 1 month 6 days
Electronic Funds Source LLC | Developed technologies
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Intangible assets		32,120	32,120			32,120
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract]
Intangible assets		0
Weighted average life	2 years
Electronic Funds Source LLC | Trademarks and Trade names
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Intangible assets		13,700	$ 13,700			$ 13,700
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract]
Intangible assets		$ 0
Weighted average life	7 years 8 months 12 days
Electronic Funds Source LLC
Business Acquisition [Line Items]
Direct ownership in the limited liability company	49.50%

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Divestitures (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations - Telapoint $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net assets disposed of	$ 8.9
Consideration received	29.9
Pre-tax book gain on disposal	$ 21.0

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Accounts Receivable - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade receivable payments terms (in days)	30 days
Threshold period past due for write-off of trade accounts receivable (in days)	150 days
Revolving line-of-credit facility under 2016 Credit Agreement
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables with revolving credit balances	$ 18.9	$ 12.2
29 days or less past due | Accounts receivable | Credit Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of outstanding receivables	95.00%	95.00%
59 days or less past due | Accounts receivable | Credit Concentration Risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of outstanding receivables	98.00%	97.00%

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Accounts Receivable - Changes in Reserves for Credit Losses Related to Accounts Receivable (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Allowance for Doubtful Accounts Receivable [Rollforward]
Balance, beginning of year	$ 33,387	$ 21,564	$ 14,672
Provision for credit losses	66,482	64,218	33,458
Charges to other accounts	19,067	16,869	10,166
Charge-offs	(78,323)	(77,229)	(43,309)
Recoveries of amounts previously charged-off	6,854	7,526	6,201
Currency translation	(519)	439	376
Balance, end of year	$ 46,948	$ 33,387	$ 21,564

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Investment Securities - Available-For-Sale Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Securities, Available-for-sale [Line Items]
Total	$ 25,603	$ 24,102
Gross Unrealized Gains	5	5
Gross Unrealized Losses	1,202	749
Fair Value	24,406	23,358
Trading securities	6,400	6,800
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Total	255	325
Gross Unrealized Gains	5	4
Gross Unrealized Losses	0	24
Fair Value	260	305
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Total	281	350
Gross Unrealized Gains	0	0
Gross Unrealized Losses	2	5
Fair Value	279	345
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Total	411	539
Gross Unrealized Gains	0	1
Gross Unrealized Losses	7	6
Fair Value	404	534
Fixed-income mutual fund
Debt Securities, Available-for-sale [Line Items]
Total	24,656	22,888
Gross Unrealized Gains	0	0
Gross Unrealized Losses	1,193	714
Fair Value	$ 23,463	$ 22,174

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Investment Securities - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Maturities of investment securities	$ 266	$ 631	$ 495

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Investment Securities - Maturity Dates Of Available-For-Sale Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Cost
Due after 5 years through year 10	$ 311	$ 390
Due after 10 years	381	499
Mortgage-backed securities with original maturities of 30 years	255	325
Equity securities with no maturity dates	24,656	22,888
Total	25,603	24,102
Fair Value
Due after 5 years through year 10	309	385
Due after 10 years	374	494
Mortgage-backed securities with original maturities of 30 years	260	305
Equity securities with no maturity dates	23,463	22,174
Total	$ 24,406	$ 23,358

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Property, Equipment and Capitalized Software, Net - Schedule Of Property, Equipment And Capitalized Software, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property, equipment and capitalized software, gross	$ 495,618	$ 428,836
Less: accumulated depreciation and amortization	(307,750)	(264,928)
Total property, equipment and capitalized software, net	187,868	163,908	$ 167,278
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Property, equipment and capitalized software, gross	78,167	69,695
Computer software
Property, Plant and Equipment [Line Items]
Property, equipment and capitalized software, gross	355,209	308,362
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, equipment and capitalized software, gross	25,516	23,248
Capital leases
Property, Plant and Equipment [Line Items]
Property, equipment and capitalized software, gross	0	759
Construction in progress
Property, Plant and Equipment [Line Items]
Property, equipment and capitalized software, gross	$ 36,726	$ 26,772

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Property, Equipment and Capitalized Software, Net - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 61,600,000	$ 49,900,000	$ 43,800,000
Impairment charges	$ 2,400,000	$ 28,000,000	$ 0

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Goodwill and Other Intangible Assets - Schedule of Changes In Goodwill (Details) - USD ($) $ in Thousands	6 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2017	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Roll Forward]
Gross goodwill, beginning of period	$ 1,849,631	$ 1,888,267	$ 1,888,267	$ 1,849,631
Divestiture of Telapoint				(4,469)
Foreign currency translation			(22,132)	18,871
Gross goodwill, end of period			1,846,326	1,888,267
Accumulated impairment, beginning of period	(11,190)	(12,135)	(12,135)	(11,190)
Goodwill impairment			(3,225)
Foreign currency translation			1,163	(945)
Accumulated impairment, end of period			(14,197)	(12,135)
Net goodwill, beginning of period	1,838,441	1,876,132	1,876,132	1,838,441
Net goodwill, end of period			1,832,129	1,876,132
Fleet solutions
Goodwill [Roll Forward]
Gross goodwill, beginning of period	1,293,138	1,269,718	1,269,718	1,293,138
Divestiture of Telapoint				(4,469)
Foreign currency translation			(18,217)	18,345
Gross goodwill, end of period			1,251,501	1,269,718
Accumulated impairment, beginning of period	(855)	(927)	(927)	(855)
Goodwill impairment			(3,225)
Foreign currency translation			(53)	(72)
Accumulated impairment, end of period			(4,205)	(927)
Net goodwill, beginning of period	1,292,283	1,268,791	1,268,791	1,292,283
Net goodwill, end of period			1,247,296	1,268,791
Travel and Corporate Solutions
Goodwill [Roll Forward]
Gross goodwill, beginning of period	202,771	265,041	265,041	202,771
Divestiture of Telapoint				0
Foreign currency translation			(600)	740
Gross goodwill, end of period			244,632	265,041
Accumulated impairment, beginning of period	(10,335)	(11,208)	(11,208)	(10,335)
Goodwill impairment			0
Foreign currency translation			1,216	(873)
Accumulated impairment, end of period			(9,992)	(11,208)
Net goodwill, beginning of period	192,436	253,833	253,833	192,436
Net goodwill, end of period			234,640	253,833
Health and Employee Benefit Solutions
Goodwill [Roll Forward]
Gross goodwill, beginning of period	353,722	353,508	353,508	353,722
Divestiture of Telapoint				0
Foreign currency translation			(3,315)	(214)
Gross goodwill, end of period			350,193	353,508
Accumulated impairment, beginning of period	0	0	0	0
Goodwill impairment			0
Foreign currency translation			0	0
Accumulated impairment, end of period			0	0
Net goodwill, beginning of period	353,722	353,508	353,508	353,722
Net goodwill, end of period			350,193	353,508
AOC Acquisition
Goodwill [Roll Forward]
Acquisition adjustments		(19,809)	(19,809)
Acquisition				67,706
Net goodwill, beginning of period		67,706	67,706
Net goodwill, end of period		$ 47,897		67,706
AOC Acquisition | Fleet solutions
Goodwill [Roll Forward]
Acquisition adjustments			0
Acquisition				0
AOC Acquisition | Travel and Corporate Solutions
Goodwill [Roll Forward]
Acquisition adjustments			(19,809)
Acquisition				67,706
AOC Acquisition | Health and Employee Benefit Solutions
Goodwill [Roll Forward]
Acquisition adjustments			0
Acquisition				0
Electronic Funds Source LLC
Goodwill [Roll Forward]
Acquisition adjustments	(43,472)			(43,472)
Net goodwill, beginning of period	728,890			728,890
Net goodwill, end of period	$ 685,418
Electronic Funds Source LLC | Fleet solutions
Goodwill [Roll Forward]
Acquisition adjustments				(37,296)
Electronic Funds Source LLC | Travel and Corporate Solutions
Goodwill [Roll Forward]
Acquisition adjustments				(6,176)
Electronic Funds Source LLC | Health and Employee Benefit Solutions
Goodwill [Roll Forward]
Acquisition adjustments				$ 0
Brazil Fleet
Goodwill [Roll Forward]
Goodwill impairment			(250,000)
Brazil Fleet | Fleet solutions
Goodwill [Roll Forward]
Goodwill impairment			3,200
Brazil Fleet | Health and Employee Benefit Solutions
Goodwill [Roll Forward]
Net goodwill, end of period			$ 14,300

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Goodwill and Other Intangible Assets - Schedule of Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,539,115	$ 1,542,299
Accumulated Amortization	(509,055)	(392,827)
Net Carrying Amount	1,030,060	1,149,472
Net Carrying Amount, Total	1,034,194	1,154,047
Amortization expense	138,200	153,800	$ 97,800
Acquired software and developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	216,325	203,861
Accumulated Amortization	(113,694)	(96,197)
Net Carrying Amount	102,631	107,664
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,243,589	1,257,232
Accumulated Amortization	(360,593)	(269,216)
Net Carrying Amount	882,996	988,016
Licensing agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	32,962	34,546
Accumulated Amortization	(18,303)	(15,029)
Net Carrying Amount	14,659	19,517
Patent
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,332	2,581
Accumulated Amortization	(2,044)	(2,076)
Net Carrying Amount	288	505
Trade name
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	43,907	44,079
Accumulated Amortization	(14,421)	(10,309)
Net Carrying Amount	29,486	33,770
Trademarks, trade names and brand names
Finite-Lived Intangible Assets [Line Items]
Trademarks, trade names and brand names, Net Carrying Amount	$ 4,134	$ 4,575

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Goodwill and Other Intangible Assets - Estimated Amortization Expense (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2019	$ 123,656
2020	113,304
2021	100,319
2022	89,585
2023	$ 80,041

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Accounts Payable (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Payables and Accruals [Abstract]
Merchant payables	$ 690,651	$ 752,371
Other payables	124,091	90,809
Accounts payable	$ 814,742	$ 843,180

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Deposits, Borrowed Federal Funds and Other Debt - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Certificates of deposit, denominations ($250 or less)	$ 250,000
Required reserve	11,100,000	$ 8,400,000
Federal funds lines-of-credit		275,000,000
Maximum money market and demand deposit accounts purchasable	$ 125,000,000.0
Outstanding balance of ICS purchases		$ 0
Minimum
Debt Instrument [Line Items]
Certificates of deposit, maturities range	6 months
Certificates of deposit, fixed interest rates range	1.30%	1.00%
Maximum
Debt Instrument [Line Items]
Certificates of deposit, maturities range	5 years	3 years
Certificates of deposit, fixed interest rates range	3.52%	2.15%
Line of Credit
Debt Instrument [Line Items]
Federal funds lines-of-credit	$ 309,000,000.0

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Deposits, Borrowed Federal Funds and Other Debt - Schedule of Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Banking and Thrift [Abstract]
Interest-bearing money market deposits	$ 283,790	$ 285,899
Customer deposits	138,072	70,211
Certificates of deposit with maturities within 1 year	505,582	630,879
Short-term deposits	927,444	986,989
Certificates of deposit with maturities greater than 1 year and less than 5 years	345,231	306,865
Total deposits	$ 1,272,675	$ 1,293,854
Weighted average cost of funds on certificates of deposit outstanding	2.36%	1.51%
Weighted average cost of interest-bearing money market deposits	2.49%	1.49%

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Deposits, Borrowed Federal Funds and Other Debt - Average Interest Rate (Details)	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Banking and Thrift [Abstract]
Deposits	1.91%	1.22%	0.94%
Interest-bearing money market deposits	2.03%	1.12%	0.50%

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Derivative Instruments - Additional Information (Details) $ in Billions	Mar. 12, 2019 contract	Dec. 31, 2018 USD ($)	Dec. 31, 2017 contract
Interest rate swaps
Derivative [Line Items]
Number of interest rate swap agreements | contract			5
Borrowings under derivative agreements | $		$ 1.0
Interest rate swaps | Minimum
Derivative [Line Items]
Fixed rate variable interest		1.108%
Interest rate swaps | Maximum
Derivative [Line Items]
Fixed rate variable interest		2.212%
2016 Credit Agreement
Derivative [Line Items]
Variable rate borrowings | $		$ 1.7
Subsequent Event
Derivative [Line Items]
Number of interest rate swap agreements | contract	3

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Derivative Instruments - Schedule of Notional Amounts (Details) - Derivatives not designated as hedging instruments	Dec. 31, 2018 USD ($)
Tranche A
Derivative [Line Items]
Notional amount at inception (in thousands)	$ 300,000,000
Fixed interest rate	2.204%
Tranche B
Derivative [Line Items]
Notional amount at inception (in thousands)	$ 200,000,000
Fixed interest rate	2.212%
Tranche C
Derivative [Line Items]
Notional amount at inception (in thousands)	$ 400,000,000
Amortization	5.00%
Fixed interest rate	1.108%
Tranche D
Derivative [Line Items]
Notional amount at inception (in thousands)	$ 150,000,000
Fixed interest rate	1.125%
Tranche E
Derivative [Line Items]
Notional amount at inception (in thousands)	$ 250,000,000
Fixed interest rate	0.896%

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Derivative Instruments - Location and Amounts of Derivative Gains and Losses in Condensed Consolidated Statements of Income (Details) - Derivatives not designated as hedging instruments - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Interest rate swaps | Net unrealized gains on interest rate swap agreements
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative instruments	$ 3,772	$ 1,314	$ 12,908
Interest rate swaps | Financing interest income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative instruments	(6,160)	(214)	0
Commodity contracts | Net realized and unrealized gains on fuel price derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative instruments	$ 0	$ 0	$ 711

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Derivative Instruments - Summary of Changes in Fair Value (Details) - Fuel $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)
Derivative [Line Items]
Realized gains	$ 5,718
Change in unrealized fuel price derivatives	(5,007)
Net realized and unrealized gains on fuel price derivatives	$ 711

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Off-Balance Sheet Arrangements (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Sep. 30, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of receivables sold		$ 713,800	$ 574,400
Loss on factoring		(4,700)	(3,700)
Amount of factored receivables		37,100	61,800
Factored receivables in excess of established credit limit		200	3,700
Operating interest		38,407	24,993	$ 12,386
WEX Europe Services
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of receivables sold		3,200,000
Loss on factoring		1,000
WEX Latin America
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loss on factoring		6,900
WEX Latin America Securitization Facility | WEX Latin America
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of receivables sold		39,800
Contribution to investment fund		$ 2,800
Securitized debt	$ 30,100		$ 19,000		$ 30,100
Operating interest	$ 4,400
Amount of derecognized receivables					$ 31,400

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Income Taxes - Components Of Income Before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
United States	$ 194,770	$ 147,240	$ 32,622
Foreign	43,849	27,176	16,308
Income before income taxes	$ 238,619	$ 174,416	$ 48,930

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Income Taxes - Components Of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Current, United States	$ 16,027	$ 2,254	$ (1,232)
Deferred, United States	29,520	(11,748)	21,565
Current, State and Local	3,566	3,687	3,033
Deferred, State and Local	8,016	10,842	(5,106)
Current, Foreign	17,916	13,743	7,292
Deferred, Foreign	(6,202)	(3,328)	3,040
Current, Total	37,509	19,684	9,093
Deferred, Total	31,334	(4,234)	19,499
Income taxes	$ 68,843	$ 15,450	$ 28,592

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Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Contingency [Line Items]
2017 Tax Act, income tax benefit	$ 60,600
Global intangible low-taxed income expense		$ 1,800
Undistributed earnings of certain foreign subsidiaries	64,900		$ 64,900	$ 58,700
Effective tax rate		28.90%	8.90%	58.40%
Tax expense related to valuation allowance		$ 10,700	$ 9,700
Unrecognized tax benefits, net		8,800
Unrecognized tax benefits that, if recognized, would impact effective tax rate		8,400
Decrease in unrecognized tax benefits is reasonably possible		4,500
Interest and penalties related to uncertain tax positions		0	0	$ 0
Accrued penalties and interest related to uncertain tax positions	0	0	0
State and Local Jurisdiction
Income Tax Contingency [Line Items]
Operating loss carry forwards	294,300	503,300	294,300
Domestic Tax Authority
Income Tax Contingency [Line Items]
Operating loss carry forwards	114,800	53,800	114,800
Foreign Tax Authority
Income Tax Contingency [Line Items]
Operating loss carry forwards	$ 73,200	$ 58,700	$ 73,200

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Income Taxes - Reconciliation Of Provision Of Income Taxes (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Federal statutory rate	21.00%	35.00%	35.00%
State income taxes (net of federal income tax benefit)	2.20%	2.00%	1.90%
Foreign income tax rate differential	1.10%	(0.70%)	(6.50%)
Revaluation of deferred tax assets for foreign and state tax rate changes, net	(1.30%)	0.40%	(1.60%)
Research and development credit	(0.20%)	(0.00%)	(0.90%)
Tax reserves	2.00%	0.30%	(7.60%)
Withholding taxes	0.20%	0.20%	0.50%
2017 Tax Act	(0.20%)	(34.80%)	0.00%
Change in valuation allowance	4.50%	4.60%	4.00%
Nondeductible expenses	1.40%	0.50%	27.80%
Incremental tax benefit from share-based compensation awards	(1.70%)	(0.90%)	0.00%
GILTI	0.80%	0.00%	0.00%
Other	(0.90%)	2.30%	5.80%
Effective tax rate	28.90%	8.90%	58.40%

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Income Taxes - Deferred Tax Assets And Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Deferred assets related to:
Reserve for credit losses	$ 10,357	$ 6,957
Tax credit carryforwards	986	1,283
Stock-based compensation, net	10,937	9,858
Net operating loss carry forwards	48,235	53,721
Accruals	13,142	7,355
Total	83,657	79,174
Deferred tax liabilities related to:
Other liabilities	1,961	2,248
Deferred financing costs	3,078	7,219
Property, equipment and capitalized software	28,227	22,315
Intangibles	166,347	140,570
Total	199,613	172,352
Valuation allowance	26,086	15,349
Deferred income taxes, net	$ (142,042)	$ (108,527)

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Income Taxes - Net Deferred Tax Assets By Jurisdiction (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Income Tax Contingency [Line Items]
Deferred tax liabilities	$ (142,042)	$ (108,527)
United States
Income Tax Contingency [Line Items]
Deferred tax liabilities	(151,125)	(113,107)
Australia
Income Tax Contingency [Line Items]
Deferred tax liabilities	(516)	(1,000)
Europe
Income Tax Contingency [Line Items]
Deferred tax assets	5,873	7,448
New Zealand
Income Tax Contingency [Line Items]
Deferred tax assets	116	188
Brazil
Income Tax Contingency [Line Items]
Deferred tax assets	3,202
Deferred tax liabilities		(1,020)
Canada
Income Tax Contingency [Line Items]
Deferred tax assets	$ 408
Deferred tax liabilities		$ (1,036)

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Income Taxes - Reconciliation Of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning balance	$ 5,898	$ 5,458	$ 4,897
Increases related to prior year tax positions	4,831	1,332	4,960
Increases related to current year tax positions	0	363	377
Decreases related to prior year tax positions	0	0	(431)
Settlements	(1,733)	(1,255)	0
Lapse of statute	0	0	(4,345)
Ending balance	$ 8,996	$ 5,898	$ 5,458

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Financing and Other Debt - Summary of Outstanding Borrowings (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total gross debt	$ 2,383,047,000	$ 2,461,048,000
Current portion of gross debt	223,241,000	404,233,000
Less: Unamortized debt issuance costs	(6,724,000)	(7,015,000)
Short-term debt, net	216,517,000	397,218,000
Long-term gross debt	2,159,806,000	2,056,815,000
Less: Unamortized debt issuance costs	(25,883,000)	(29,063,000)
Long-term debt, net	2,133,923,000	2,027,752,000
Supplemental information under 2016 Credit Agreement:
Remaining borrowing capacity		275,000,000
2016 Credit Agreement
Supplemental information under 2016 Credit Agreement:
Letters of credit	1,700,000,000
Participation debt
Debt Instrument [Line Items]
Total gross debt	114,849,000	184,990,000
Revolving line-of-credit facility under 2016 Credit Agreement | 2016 Credit Agreement
Supplemental information under 2016 Credit Agreement:
Remaining borrowing capacity	666,486,000	405,965,000
Revolving line-of-credit facility under 2016 Credit Agreement | Line of Credit | 2016 Credit Agreement
Debt Instrument [Line Items]
Total gross debt	0	136,535,000
Term loans under 2016 Credit Agreement
Debt Instrument [Line Items]
Total gross debt	106,872,000	126,901,000
Term loans under 2016 Credit Agreement | Line of Credit | 2016 Credit Agreement
Debt Instrument [Line Items]
Total gross debt	1,745,084,000	1,602,875,000
Senior Notes | Notes Payable, Other Payables
Debt Instrument [Line Items]
Total gross debt	400,000,000	400,000,000
WEX Latin America
Debt Instrument [Line Items]
Total gross debt		9,747,000
Short-term Debt	16,242,000	9,700,000
Letter of Credit | Revolving line-of-credit facility under 2016 Credit Agreement | 2016 Credit Agreement
Supplemental information under 2016 Credit Agreement:
Letters of credit	$ 53,514,000	$ 27,500,000

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Financing and Other Debt - Additional Information (Details)				3 Months Ended	12 Months Ended
	Jul. 01, 2016 USD ($)	Apr. 07, 2016	Jan. 30, 2013 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Aug. 24, 2018 USD ($)	Jan. 17, 2018 USD ($)
Debt Instrument [Line Items]
Interest coverage ratio (no less than)					3.00
Percentage of principal amount Company must offer to repurchase			101.00%
Loss on debt extinguishment				$ 1,100,000
General and administrative expenses incurred				3,800,000
Debt issuance costs capitalized				$ 5,800,000
Long-term debt, net					$ 2,133,923,000	$ 2,027,752,000
Pledged receivables held as collateral					$ 343,100,000
Federal Reserve Bank average interest rate					2.15%	1.24%	0.69%
Electronic Funds Source LLC | Interest Expense
Debt Instrument [Line Items]
Commitment fee amount							$ 30,000,000
Minimum | Electronic Funds Source LLC
Debt Instrument [Line Items]
Commitment fee amount	$ 7,900,000
Maximum | Electronic Funds Source LLC | Interest Expense
Debt Instrument [Line Items]
Commitment fee amount	$ 22,200,000
Senior Notes Redeemed During 12 Months Beginning February 1, 2019
Debt Instrument [Line Items]
Redemption price as percentage of principal amount			101.583%
Senior Notes Redeemed During 12 Months Beginning February 1, 2020
Debt Instrument [Line Items]
Redemption price as percentage of principal amount			100.792%
Senior Notes Redeemed During 12 Months Beginning February 1, 2021
Debt Instrument [Line Items]
Interest rate, stated percentage					4.75%
Redemption price as percentage of principal amount			100.00%
Federal Reserve Bank
Debt Instrument [Line Items]
Letters of credit					$ 0
Revolving line-of-credit facility under 2016 Credit Agreement | Federal Reserve Bank
Debt Instrument [Line Items]
Current borrowing capacity					307,400,000
2016 Credit Agreement Tranche B
Debt Instrument [Line Items]
Debt instrument, excess of cash required to be used for debt repayment	50.00%
Debt instrument, quarterly payment, percent of original principal amount	0.25%
2016 Credit Agreement Tranche B | Leverage Ratio One
Debt Instrument [Line Items]
Debt instrument, excess of cash required to be used for debt repayment	25.00%
2016 Credit Agreement Tranche B | Leverage Ratio Two
Debt Instrument [Line Items]
Debt instrument, excess of cash required to be used for debt repayment	0.00%
2016 Credit Agreement Tranche B | Credit Facility and Term Loans
Debt Instrument [Line Items]
Additional borrowing capacity added									$ 153,000,000.0
Current borrowing capacity									1,335,000,000
Mandatory quarterly payments					3,400,000
2016 Credit Agreement Tranche A
Debt Instrument [Line Items]
Debt instrument, quarterly payment, percent of original principal amount	1.25%
Interest coverage ratio (no less than)	3.00
2016 Credit Agreement Tranche A | December 31, 2018
Debt Instrument [Line Items]
Indebtedness to EBITDA Ratio (no more than)	4.50
2016 Credit Agreement Tranche A | December 31, 2019
Debt Instrument [Line Items]
Indebtedness to EBITDA Ratio (no more than)	4.25
2016 Credit Agreement Tranche A | December 31, 2021 and thereafter
Debt Instrument [Line Items]
Indebtedness to EBITDA Ratio (no more than)	4.0
2016 Credit Agreement Tranche A | Credit Facility and Term Loans
Debt Instrument [Line Items]
Current borrowing capacity									$ 480,000,000
Mandatory quarterly payments					$ 5,400,000
2016 Credit Agreement Tranche A | Revolving line-of-credit facility under 2016 Credit Agreement
Debt Instrument [Line Items]
Additional borrowing capacity added								$ 25,000,000.0
2016 Credit Agreement
Debt Instrument [Line Items]
Weighted average effective interest rate (as a percent)					4.70%	4.20%
Debt instrument, cash proceeds from assets sales required to be used towards debt repayment, percent	100.00%
Debt instrument. cash proceeds from other debts required to be used towards debt repayment, percent	100.00%
Letters of credit					$ 1,700,000,000
2016 Credit Agreement | Minimum
Debt Instrument [Line Items]
Commitment fee percentage	0.30%
2016 Credit Agreement | Maximum
Debt Instrument [Line Items]
Commitment fee percentage	0.50%				0.40%
2016 Credit Agreement | Revolving line-of-credit facility under 2016 Credit Agreement
Debt Instrument [Line Items]
Additional borrowing capacity added								150,000,000.0
Current borrowing capacity								$ 720,000,000
Senior Notes
Debt Instrument [Line Items]
Long-term deposits			$ 400,000,000
Interest rate, stated percentage			4.75%
Issue price of principal amount (as a percent)			100.00%
Securitization Facility
Debt Instrument [Line Items]
Securitization facility, percentage of receivables used as collateral					85.00%
Securitization facility					$ 87,000,000	$ 90,000,000
Interest rate during period, percent					2.89%	2.53%
European Securitization Facility
Debt Instrument [Line Items]
Debt instrument, term		5 years
Securitized debt					$ 18,000,000	$ 17,900,000
Interest rate during period, percent					0.98%	1.11%
Participation debt
Debt Instrument [Line Items]
Weighted average effective interest rate (as a percent)					4.30%	3.46%	2.94%
Funding capacity					$ 180,000,000
WEX Latin America
Debt Instrument [Line Items]
Short-term Debt					$ 16,242,000	$ 9,700,000
Interest rate during period, percent					23.59%	24.10%
Letter of Credit | 2016 Credit Agreement | Revolving line-of-credit facility under 2016 Credit Agreement
Debt Instrument [Line Items]
Current borrowing capacity					$ 250,000,000
Swingline Loans | 2016 Credit Agreement | Revolving line-of-credit facility under 2016 Credit Agreement
Debt Instrument [Line Items]
Current borrowing capacity					20,000,000
Revolving line-of-credit facility under 2016 Credit Agreement | 2016 Credit Agreement | Letter of Credit
Debt Instrument [Line Items]
Letters of credit					53,514,000	$ 27,500,000
Short-term Debt | Participation debt
Debt Instrument [Line Items]
Long-term debt, net					64,800,000	135,000,000
Long-term Debt | Participation debt
Debt Instrument [Line Items]
Long-term debt, net					$ 50,000,000	$ 50,000,000
London Interbank Offered Rate (LIBOR) [Member] | Participation debt
Debt Instrument [Line Items]
Margin on variable rate, percent					2.25%

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Financing and Other Debt - Summary of Annual Principal Payments (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Debt Disclosure [Abstract]
2019	$ 223,241
2020	85,278
2021	35,278
2022	35,278
2023	$ 2,003,972

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Tax Receivable Agreement (Details) - USD ($) $ in Millions			12 Months Ended
	Jun. 26, 2009	Jul. 27, 2006	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2005
Income Tax Holiday [Line Items]
Percentage of remittance of cash savings						85.00%
Pursuant of tax receivable prepayment to third party	$ 51.0
Tax receivable agreement, liability			$ 13.6	$ 20.3
Charge to non-operating expense			(0.8)	15.3	$ (0.6)
Payments for tax receivable agreement			$ 7.5	$ 11.8
Realogy Corporation
Income Tax Holiday [Line Items]
Acquired right to receive percentage of payment		62.50%
Wyndham Worldwide Corporation
Income Tax Holiday [Line Items]
Acquired right to receive percentage of payment		37.50%
Percentage of right to receive payments under ratification agreement	31.875%

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Employee Benefit Plans - Additional Information (Details) - USD ($) $ in Thousands		12 Months Ended
	Feb. 01, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Eligible age to participate		18 years
Eligible year of service for Company matching contributions		1 year
Company matching percentage of each employee's contributions to maximum employee eligible compensation		100.00%
Maximum percentage of employee eligible compensation to the plan		6.00%
Contributions by company		$ 8,000	$ 6,700	$ 5,300
Obligation related to defined contribution plan		6,400	6,800
Aggregate market value of the securities		6,400	6,800
Electronic Funds Source LLC
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets received from acquisition	$ 15,200
ESSO Portfolio
Defined Benefit Plan Disclosure [Line Items]
Total net unfunded status of defined benefit pension plan		5,400	300
Expense under defined benefit pension plans		$ 0	$ 0	$ 0

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Fair Value - Assets and Liabilities Measured at Fair Value and Related Hierarchy Levels (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Financial Assets:
Total investment securities	$ 24,406	$ 23,358
Municipal bonds
Financial Assets:
Total investment securities	404	534
Asset-backed securities
Financial Assets:
Total investment securities	279	345
Mortgage-backed securities
Financial Assets:
Total investment securities	260	305
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Assets:
Executive deferred compensation plan trust	6,398	6,798
Quoted Prices in Active Markets for Identical Assets (Level 1) | Money market funds
Financial Assets:
Money market funds	71,228	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fixed-income mutual fund
Financial Assets:
Total investment securities	23,463	22,174
Significant Other Observable Inputs (Level 2) | Interest rate swaps
Financial Assets:
Derivative asset	17,994	19,595
Liabilities:
Interest rate swaps	0	5,373
Significant Other Observable Inputs (Level 2) | Municipal bonds
Financial Assets:
Total investment securities	404	534
Significant Other Observable Inputs (Level 2) | Asset-backed securities
Financial Assets:
Total investment securities	279	345
Significant Other Observable Inputs (Level 2) | Mortgage-backed securities
Financial Assets:
Total investment securities	$ 260	$ 305

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Fair Value - Additional Information (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Estimate of Fair Value Measurement | Senior Notes | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes outstanding	$ 392.0	$ 410.0

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Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Loss Contingencies [Line Items]
Unused commitments to extend credit	$ 7,000.0
Minimum volume purchase commitments	170.5
Purchase Commitments, Shortfall Penalties Incurred	1.6	$ 1.2
Office space, equipment, and vehicle
Loss Contingencies [Line Items]
Rent expense	$ 15.7	$ 15.5	$ 15.1

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Commitments and Contingencies - Future Minimum Lease Payments Under Non-Cancelable Operating and Capital Leases (Detail) $ in Thousands	Dec. 31, 2018 USD ($)
Operating
2019	$ 14,794
2020	16,020
2021	15,186
2022	14,103
2023	11,706
Thereafter	65,628
Total minimum lease payments	$ 137,437

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Dividend Restrictions (Details)	12 Months Ended
	Dec. 31, 2018 USD ($)
Debt Instrument [Line Items]
Ratio of funded indebtedness to EBITDA (no more than)	2.50
Interest coverage ratio (no less than)	3.00
Maximum restricted payments, including dividends, per annum	$ 50,000,000
Percentage of eligible carry over of unused restricted dividend payments	100.00%
Percentage of transfer to surplus fund	10.00%
Required percentage of surplus to capital stock	100.00%
Capital stock	$ 5,300,000
Capital surplus as percent of capital stock	100.00%
September 30, 2019
Debt Instrument [Line Items]
Ratio of funded indebtedness to EBITDA (no more than)	5.00
September 30, 2020
Debt Instrument [Line Items]
Ratio of funded indebtedness to EBITDA (no more than)	4.50
September 30, 2021
Debt Instrument [Line Items]
Ratio of funded indebtedness to EBITDA (no more than)	4.25
December 31, 2020
Debt Instrument [Line Items]
Ratio of funded indebtedness to EBITDA (no more than)	4.00

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Stock-Based Compensation - Additional Information (Details) $ in Millions	1 Months Ended		12 Months Ended
	May 31, 2017	May 31, 2015 shares	Dec. 31, 2018 USD ($) award day shares	Dec. 31, 2017 USD ($) shares	Dec. 31, 2016 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares) | shares		3,800,000
Share-based compensation arrangement by share-based payment award, number of additional shares authorized (in shares) | shares		1,596,000
Number of stock-based compensation plans | award			4
Total stock-based compensation cost recognized			$ 33.9	$ 30.5	$ 19.7
Tax benefit from stock option and restricted stock units			8.0	7.3	7.2
Shares exercised, total intrinsic value			1.9	0.6	1.7
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost			$ 15.6
Compensation cost expected recognition weighted average period (in years)			1 year 9 months 18 days
Shares granted fair value			$ 16.8	11.7	18.8
Shares vested fair value			$ 9.2	$ 7.3	3.6
Deferred stock units (in shares) | shares			167,000	173,000
Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost			$ 31.9
Compensation cost expected recognition weighted average period (in years)			1 year 9 months 18 days
Shares vested fair value			$ 12.0	$ 15.9	4.9
Performance Based Restricted Stock Units | Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred stock units (in shares) | shares			419,000	314,000
Performance Based Restricted Stock Units | Units at Target
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted fair value			$ 18.3	$ 15.0	15.9
Performance Based Restricted Stock Units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance goals tracking period			1 year
Performance Based Restricted Stock Units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance goals tracking period			3 years
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of consecutive trading days | day			20
Derived service period			3 years
Expiration period	10 years
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)			3 years
Total unrecognized compensation cost			$ 13.0
Compensation cost expected recognition weighted average period (in years)			1 year 6 months
Expiration period			10 years
Grant date fair value of shares			$ 5.2	$ 20.5	$ 3.3
Deferred Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred stock units (in shares) | shares			74,000	94,000
Common Stock Issued
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units of common stock available for grant | shares			1,100,000
Non-Employee Directors And Certain Employees | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)			12 months
Certain Employees | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)			3 years
First anniversary | Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage			33.00%
Second anniversary | Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage			33.33%
Third anniversary | Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage			33.33%

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Stock-Based Compensation - Schedule of Restricted Stock Units (Details) - Restricted Stock Units (RSUs) shares in Thousands	12 Months Ended
	Dec. 31, 2018 $ / shares shares
Units
Balance at beginning of period (in shares)	173
Granted (in shares)	101
Vested (in shares)	(94)
Forfeited (in shares)	(13)
Balance at end of period (in shares)	167
Restricted shares withheld for tax	29
Weighted-Average Grant-Date Fair Value
Balance at beginning of period (in dollars per share) | $ / shares	$ 98.31
Granted (in dollars per share) | $ / shares	165.88
Vested (in dollars per share) | $ / shares	98.07
Forfeited (in dollars per share) | $ / shares	110.81
Balance at end of period (in dollars per share) | $ / shares	$ 138.58

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Stock-Based Compensation - Schedule of Performance Based Restricted Stock Units (Details) - Performance Based Restricted Stock Units shares in Thousands	12 Months Ended
	Dec. 31, 2018 $ / shares shares
Units
Restricted shares withheld for tax	48
Weighted-Average Grant-Date Fair Value
Balance at beginning of period (in dollars per share) | $ / shares	$ 93.18
Granted (in dollars per share) | $ / shares	158.77
Forfeited (in dollars per share) | $ / shares	88.99
Vested (in dollars per share) | $ / shares	96.47
Performance adjustment (in dollars per share) | $ / shares	85.58
Balance at end of period (in dollars per share) | $ / shares	$ 113.58
Shares
Units
Balance at beginning of period (in shares)	314
Granted (in shares)	115
Forfeited (in shares)	(175)
Vested (in shares)	(45)
Performance adjustment (in shares)	(140)
Balance at end of period (in shares)	419

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Stock-Based Compensation - Schedule of Assumptions Used (Details) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price (in dollars per share)	$ 99.69
Expected stock price volatility	31.14%
Risk-free interest rate	2.18%
Weighted average fair value (in dollars per share)	$ 28.69
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price (in dollars per share)	$ 158.23	$ 104.95	$ 77.20
Risk-free interest rate	2.69%	2.13%	1.62%
Weighted average fair value (in dollars per share)	$ 51.27	$ 35.58	$ 26.14
Weighted average expected term (in years)	6 years	6 years	6 years
Weighted average volatility (as a percent)	27.35%	30.67%	31.93%

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Stock-Based Compensation - Schedule of Stock Option Activity (Details) - Stock Option $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($) $ / shares shares
Shares
Shares, Beginning balance outstanding (in shares) | shares	834
Shares, Granted (in shares) | shares	101
Shares, Exercised (in shares) | shares	(25)
Shares, Forfeited (in shares) | shares	(19)
Shares, Ending balance outstanding (in shares) | shares	891
Shares, Exercisable (in shares) | shares	132
Share, Expected to vest (in shares) | shares	754
Weighted-Average Exercise Price
Weighted-Average Exercise Price, Beginning balance outstanding (in dollars per share) | $ / shares	$ 97.70
Weighted-Average Exercise Price, Granted (in dollars per share) | $ / shares	158.23
Weighted-Average Exercise Price, Exercised (in dollars per share) | $ / shares	91.85
Weighted-Average Exercise Price, Forfeited or expired (in dollars per share) | $ / shares	103.55
Weighted-Average Exercise Price, Ending balance outstanding (in dollars per share) | $ / shares	104.62
Exercisable (in dollars per share) | $ / shares	91.76
Expected to vest (in dollars per share) | $ / shares	$ 106.60
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted average remaining contractual term, Outstanding	8 years 2 months 23 days
Weighted average remaining contractual term, Exercisable	7 years 2 months 27 days
Weighted average remaining contractual term, expected to vest	8 years 4 months 24 days
Aggregate Intrinsic Value, Outstanding | $	$ 33,362
Aggregate Intrinsic Value, Exercisable | $	6,379
Aggregate Intrinsic Value, Expected to vest | $	$ 26,947

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Impairment and Restructuring Activities - Additional Information (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Goodwill impairment		$ 3,225,000
Impairment of software under development		2,400,000	$ 28,000,000	$ 0
Impairment charges and asset write-offs		5,649,000	44,171,000	$ 0
Restructuring charges incurred to date		24,800,000
Software and Software Development Costs
Restructuring Cost and Reserve [Line Items]
Computer software impairment	$ 6,000,000
Travel and Corporate Solutions
Restructuring Cost and Reserve [Line Items]
Goodwill impairment		0
Fleet solutions
Restructuring Cost and Reserve [Line Items]
Goodwill impairment		3,225,000
Impairment charges and asset write-offs			$ 16,200,000
Software under development | Travel and Corporate Solutions
Restructuring Cost and Reserve [Line Items]
Impairment of software under development	$ 22,000,000
Brazil Fleet
Restructuring Cost and Reserve [Line Items]
Goodwill impairment		250,000,000
Brazil Fleet | Fleet solutions
Restructuring Cost and Reserve [Line Items]
Goodwill impairment		(3,200,000)
Computer software
Restructuring Cost and Reserve [Line Items]
Impairment of computer software		$ 2,400,000

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Impairment and Restructuring Activities - Summary of Restructuring Reserve (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Restructuring Reserve [Roll Forward]
Balance, beginning of year	$ 8,511	$ 10,657
Restructuring charges	272	7,139
Cash paid	(7,681)	(10,149)
Other	(489)	107
Foreign currency translation	(34)	757
Balance, end of year	579	8,511
2015 Restructuring Initiative
Restructuring Reserve [Roll Forward]
Balance, beginning of year	2,680	5,231
Restructuring charges	(79)	2,565
Cash paid	(1,734)	(4,020)
Other	(511)	(1,158)
Foreign currency translation	(27)	62
Balance, end of year	329	2,680
2016 Restructuring Initiative
Restructuring Reserve [Roll Forward]
Balance, beginning of year	738	3,662
Restructuring charges	111	(1,305)
Cash paid	(592)	(3,479)
Other	0	1,158
Foreign currency translation	(7)	702
Balance, end of year	250	738
Acquisition Integration Restructuring Initiative
Restructuring Reserve [Roll Forward]
Balance, beginning of year	5,093	1,764
Restructuring charges	240	5,879
Cash paid	(5,355)	(2,650)
Other	22	107
Foreign currency translation	0	(7)
Balance, end of year	$ 0	$ 5,093

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Segment Information - Additional Information (Details)	12 Months Ended
	Dec. 31, 2018 reportable_segment
Segment Reporting [Abstract]
Number of reportable segments	3

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Segment Information - Reportable Segment Results (Details) - USD ($) $ in Thousands	3 Months Ended							12 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting, Revenue Reconciling Item [Line Items]
Payment processing revenue								$ 996,763
Account servicing revenue								308,096	$ 276,570	$ 211,012
Finance fee revenue									188,792	132,968
Other revenue								251,925	214,049	147,889
Total revenues	$ 386,617	$ 370,798	$ 354,028	$ 331,579	$ 320,677	$ 303,868	$ 292,453	1,492,639	1,248,577	1,012,488
Interest income								16,167	31,905	17,132
Fleet solutions
Segment Reporting, Revenue Reconciling Item [Line Items]
Payment processing revenue								561,744
Account servicing revenue								162,662	165,083	127,105
Finance fee revenue									159,336	124,725
Other revenue								156,970	138,533	92,331
Total revenues								975,140	823,110	642,061
Interest income								3,503	3,681	3,053
Travel and corporate solutions
Segment Reporting, Revenue Reconciling Item [Line Items]
Payment processing revenue								245,457
Account servicing revenue									7,531	1,247
Finance fee revenue									760	643
Other revenue								61,402	57,096	37,595
Total revenues								303,344	224,047	215,247
Interest income								958	717	498
Health and Employee Benefit Solutions
Segment Reporting, Revenue Reconciling Item [Line Items]
Payment processing revenue								189,562
Account servicing revenue									103,956	82,660
Finance fee revenue									28,696	7,600
Other revenue								33,553	18,420	17,963
Total revenues								214,155	201,420	155,180
Interest income								11,706	27,507	13,581
Payment Processing Revenue
Segment Reporting, Revenue Reconciling Item [Line Items]
Payment processing revenue								723,991	569,166	520,619
Payment Processing Revenue | Fleet solutions
Segment Reporting, Revenue Reconciling Item [Line Items]
Payment processing revenue								464,980	360,158	297,900
Payment Processing Revenue | Travel and corporate solutions
Segment Reporting, Revenue Reconciling Item [Line Items]
Payment processing revenue								203,289	158,660	175,762
Payment Processing Revenue | Health and Employee Benefit Solutions
Segment Reporting, Revenue Reconciling Item [Line Items]
Payment processing revenue								$ 55,722	$ 50,348	$ 46,957

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Segment Information - Reconciliation of Adjusted Net Income to Net Income (Details) - USD ($) $ in Thousands	3 Months Ended							12 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Total segment adjusted operating income								$ 639,956	$ 513,378	$ 372,669
Acquisition-related intangible amortization								138,200	153,800	97,800
Stock-based compensation								33,887	30,487	19,742
Restructuring and other costs								272	7,139
Impairment charges and asset write-offs								5,649	44,171	0
Impairment charges and asset write-offs								5,649	44,171	0
Gain on divestiture								0	(20,958)	0
Operating income	$ 102,564	$ 100,424	$ 83,859	$ 73,456	$ 50,819	$ 52,447	$ 56,701	380,638	233,423	158,525
Financing interest expense								(105,023)	(107,067)	(113,418)
Net foreign currency (loss) gain								(38,800)	31,487	(9,233)
Net realized and unrealized gains on fuel price derivatives								0	0	711
Non-cash adjustments related to tax receivable agreement								(775)	15,259	(563)
Net unrealized gains on financial instruments								2,579	1,314	12,908
Income before income taxes								238,619	174,416	48,930
Segment Reconciling Items
Segment Reporting Information [Line Items]
Unallocated corporate expenses								58,095	53,753	46,199
Acquisition-related intangible amortization								138,186	153,810	97,829
Other acquisition and divestiture related items								4,143	5,000	20,879
Debt restructuring								4,425	2,563	0
Stock-based compensation								35,103		19,742
Restructuring and other costs								13,717	11,129	13,995
Impairment charges and asset write-offs								5,649		0
Gain on divestiture								0		0
Vendor settlement								0	0	15,500
Fleet solutions
Segment Reporting Information [Line Items]
Total segment adjusted operating income								459,646	369,872	254,225
Impairment charges and asset write-offs									16,200
Travel and Corporate Solutions
Segment Reporting Information [Line Items]
Total segment adjusted operating income								135,379	96,660	80,699
Health and Employee Benefit Solutions
Segment Reporting Information [Line Items]
Total segment adjusted operating income								$ 44,931	$ 46,846	$ 37,745

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Segment Information - Schedule Of Revenue By Geographic Data (Details) - USD ($) $ in Thousands	3 Months Ended							12 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	$ 386,617	$ 370,798	$ 354,028	$ 331,579	$ 320,677	$ 303,868	$ 292,453	$ 1,492,639	$ 1,248,577	$ 1,012,488
Net property, equipment and capitalized software				163,908				187,868	163,908	167,278
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues								1,287,405	1,037,322	839,917
Net property, equipment and capitalized software				148,490				176,111	148,490	146,165
Australia
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues								60,518	62,030	53,068
Other international
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues								144,716	149,225	119,503
International
Revenues from External Customers and Long-Lived Assets [Line Items]
Net property, equipment and capitalized software				$ 15,418				$ 11,757	$ 15,418	$ 21,113

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Supplementary Regulatory Capital Disclosure - Actual and Regulatory Minimum Capital Amounts and Ratios (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Banking and Thrift [Abstract]
Total Capital to risk-weighted assets, Actual Amount	$ 323,178	$ 316,129
Total Capital to risk-weighted assets, Ratio	12.82%	13.38%
Total Capital to risk-weighted assets, Minimum for Capital Adequacy Purposes Amount	$ 201,749	$ 188,991
Total Capital to risk-weighted assets, Ratio	8.00%	8.00%
Total Capital to risk-weighted assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 252,186	$ 236,239
Total Capital to risk-weighted assets, Ratio	10.00%	10.00%
Tier 1 Capital to average assets, Actual Amount	$ 305,734	$ 304,555
Tier 1 Capital to average assets, Ratio	10.88%	12.50%
Tier 1 Capital to average assets, Minimum for Capital Adequacy Purposes Amount	$ 112,401	$ 97,452
Tier 1 Capital to average assets, Ratio	4.00%	4.00%
Tier 1 Capital to average assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 140,501	$ 121,815
Tier 1 Capital to average assets, Ratio	5.00%	5.00%
Common equity to risk-weighted assets, Actual Amount	$ 305,734	$ 304,555
Common equity to risk-weighted assets, Ratio	12.12%	12.89%
Common equity to risk-weighted assets, Minimum for Capital Adequacy Purposes Amount	$ 113,484	$ 106,308
Common equity to risk-weighted assets, Ratio	4.50%	4.50%
Common equity to risk-weighted assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 163,921	$ 153,555
Common equity to risk-weighted assets, Ratio	6.50%	6.50%
Tier 1 Capital to risk-weighted assets, Actual Amount	$ 305,734	$ 304,555
Tier 1 Capital to risk-weighted assets, Ratio	12.12%	12.89%
Tier 1 Capital to risk-weighted assets, Minimum for Capital Adequacy Purposes Amount	$ 151,312	$ 141,743
Tier 1 Capital to risk-weighted assets, Ratio	6.00%	6.00%
Tier 1 Capital to risk-weighted assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 201,749	$ 188,991
Tier 1 Capital to risk-weighted assets, Ratio	8.00%	8.00%

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Subsequent Events (Details) $ in Millions		1 Months Ended	3 Months Ended
	Feb. 14, 2019 USD ($)	Oct. 31, 2018 USD ($)	Mar. 31, 2019 USD ($)	Mar. 12, 2019 USD ($) contract	Mar. 05, 2019 USD ($)	Jan. 18, 2019 USD ($)	Jan. 17, 2018 USD ($)	Dec. 31, 2017 contract
Subsequent Event
Subsequent Event [Line Items]
Number of interest rate swap agreements | contract				3
Credit Facility and Term Loans | 2016 Credit Agreement Tranche A
Subsequent Event [Line Items]
Increase in borrowing capacity							$ 480.0
Credit Facility and Term Loans | 2016 Credit Agreement Tranche A | Subsequent Event
Subsequent Event [Line Items]
Increase in borrowing capacity					$ 250.0
Credit Facility and Term Loans | Revolving line-of-credit facility under 2016 Credit Agreement | Subsequent Event
Subsequent Event [Line Items]
Increase in borrowing capacity					$ 50.0
Pavestone Capital LLC | Subsequent Event
Subsequent Event [Line Items]
Consideration transferred	$ 30.0
Noventis
Subsequent Event [Line Items]
Consideration transferred		$ 310.0
Noventis | Delayed Draw Commitment | Subsequent Event
Subsequent Event [Line Items]
Increase in borrowing capacity						$ 300.0
Noventis | Credit Facility and Term Loans | 2016 Credit Agreement Tranche A | Subsequent Event
Subsequent Event [Line Items]
Increase in borrowing capacity						$ 300.0
Scenario, Forecast | Discovery Benefits, Inc. | Subsequent Event
Subsequent Event [Line Items]
Consideration transferred			$ 425.0
Consideration transferred, amount deferred			$ 50.0
Percentage of equity interest not acquired			4.90%
Interest rate swaps
Subsequent Event [Line Items]
Number of interest rate swap agreements | contract								5
Interest rate swaps | Subsequent Event
Subsequent Event [Line Items]
Interest rate swaps				$ 450.0
Minimum | Interest rate swaps | Subsequent Event
Subsequent Event [Line Items]
Variable interest rate				2.413%
Maximum | Interest rate swaps | Subsequent Event
Subsequent Event [Line Items]
Variable interest rate				2.425%

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Quarterly Financial Results (Unaudited) - Summary Of Quarterly Financial Results (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended							12 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Total revenues	$ 386,617	$ 370,798	$ 354,028	$ 331,579	$ 320,677	$ 303,868	$ 292,453	$ 1,492,639	$ 1,248,577	$ 1,012,488
Operating income	102,564	100,424	83,859	73,456	50,819	52,447	56,701	$ 380,638	$ 233,423	$ 158,525
Net earnings attributable to shareholders	$ 56,644	$ 38,424	$ 51,970	$ 87,181	$ 26,232	$ 19,770	$ 26,879
Earnings per share:
Basic (in dollars per share)	$ 1.31	$ 0.89	$ 1.21	$ 2.03	$ 0.61	$ 0.46	$ 0.63	$ 3.90	$ 3.72	$ 0.58
Diluted (in dollars per share)	$ 1.30	$ 0.88	$ 1.20	$ 2.02	$ 0.61	$ 0.46	$ 0.62	$ 3.86	$ 3.71	$ 0.57
2017 Tax Act, income tax benefit				$ 60,600

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Label	Element	Value
Restricted Cash	us-gaap_RestrictedCash	$ 17,937,000
Restricted Cash	us-gaap_RestrictedCash	22,412,000
Restricted Cash	us-gaap_RestrictedCash	18,866,000
Restricted Cash	us-gaap_RestrictedCash	$ 13,533,000