XML 88 R69.htm IDEA: XBRL DOCUMENT
v3.20.4

Acquisitions - Narrative (Details) $ in Thousands, € in Millions, shares in Millions |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 10 Months Ended | 11 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 15, 2020 USD ($) | Jan. 24, 2020 USD ($) shares | Jul. 01, 2019 USD ($) | Jul. 01, 2019 EUR (€) | Mar. 05, 2019 USD ($) | Feb. 14, 2019 USD ($) | Jan. 24, 2019 USD ($) | Oct. 31, 2018 USD ($) | Dec. 31, 2019 USD ($) | Jun. 30, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses related to acquisitions |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 97,900 | $ 13,000 | $ 2,500
Expenses related to acquisitions in process |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 4,800 |
Payment for trade accounts receivable portfolio |  |  |  |  |  |  |  | $ 223,400 |  |  |  |  |  |  |  |  |
Premium in excess of receivables' estimated fair value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 162,800
Payment in escrow for carrying value of accounts receivable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 38,900
Expected funds from escrow |  |  |  |  |  |  |  |  |  | $ 27,000 |  |  |  |  |  |  |
Term of agreement |  |  |  |  |  |  |  |  |  | 13 years |  |  |  |  |  |  |
Legal settlement |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 162,500 | 0 | 0
Legal settlement costs |  |  |  |  |  |  |  |  | $ 162,500 |  |  | $ 162,500 | $ 162,500 | $ 162,500 | 162,500 | 162,500 |
Weighted average life |  |  |  |  | 7 years |  |  |  |  |  |  |  |  |  |  |  |
Total cash payment |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 220,704 | 882,417 | 162,750
Goodwill |  |  |  |  |  |  |  |  | 2,441,201 |  | $ 1,832,129 | 2,441,201 | 2,441,201 | 2,441,201 | 2,688,138 | 2,441,201 | 1,832,129
WEX Fleet Europe impairment |  |  |  |  |  |  |  |  |  |  | 3,200 |  |  |  | 53,378 |  |
Fleet Solutions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  | 1,374,020 |  | $ 1,247,296 | 1,374,020 | 1,374,020 | 1,374,020 | 1,338,471 | $ 1,374,020 | $ 1,247,296
WEX Fleet Europe impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 53,378 |  |
Discovery Benefits, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage by noncontrolling interest |  |  |  |  | 4.90% |  |  |  |  |  |  |  |  |  | 4.90% |  |
Original Purchase Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash to be paid | $ 615,400 | $ 1,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration transferred | $ 577,500 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional borrowing capacity added |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 415,000 |  |
Legal settlement |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 162,500 |  |
Weighted average life | 4 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total cash payment | $ 383,204 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | 291,884 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts receivable acquired | $ 14,449 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Original Purchase Agreement | Common Stock Issued |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares of common stock issued (in shares) | shares |  | 2.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discovery Benefits, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration transferred |  |  |  |  | $ 526,100 |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  | 94,700 |  |  |  |
Net income (loss) before taxes |  |  |  |  |  |  |  |  |  |  |  |  | $ 300 |  |  |  |
Deferred cash consideration |  |  |  |  |  |  |  |  | $ 50,000 |  |  |  |  |  |  |  |
Fair value of equity interests acquired |  |  |  |  | 100,000 |  |  |  |  |  |  |  |  |  |  |  |
Total cash payment |  |  |  |  | 300,191 |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  | 272,399 |  |  |  |  |  |  |  |  |  |  |  |
Accounts receivable acquired |  |  |  |  | $ 10,722 |  |  |  |  |  |  |  |  |  |  |  |
Noventis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration transferred |  |  |  |  |  |  | $ 338,700 |  |  |  |  |  |  |  |  |  |
Weighted average life |  |  |  |  |  |  | 7 years 7 months 6 days |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  |  | 43,800 |  |  |
Net income (loss) before taxes |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 8,200 |  |  |
Amount of accelerated vesting of options |  |  |  |  |  |  | $ 5,500 |  |  |  |  |  |  |  |  |  |
Total cash payment |  |  |  |  |  |  | 293,767 |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  | 209,887 |  |  |  |  |  |  |  |  |  |
Accounts receivable acquired |  |  |  |  |  |  | $ 22,134 |  |  |  |  |  |  |  |  |  |
Pavestone Capital |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total cash payment |  |  |  |  |  | $ 28,000 |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  | 9,500 |  |  |  |  |  |  |  |  |  |  |
Accounts receivable acquired |  |  |  |  |  | $ 14,900 |  |  |  |  |  |  |  |  |  |  |
Go Fuel Card |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration transferred |  |  | $ 266,000 | € 235.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average life |  |  | 8 years 10 months 24 days | 8 years 10 months 24 days |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  | 10,500 |  |  |  |  |
Net income (loss) before taxes |  |  |  |  |  |  |  |  |  |  |  | $ (9,100) |  |  |  |  |
Total cash payment |  |  | $ 260,455 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  | $ 118,746 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Go Fuel Card | Fleet Solutions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 65,800 |  |
Customer relationships |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset acquisition, customer relationship intangible assets |  |  |  |  |  |  |  |  |  | $ 168,000 |  |  |  |  |  |  |
Weighted average life |  |  |  |  | 7 years 3 months 18 days |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships | Original Purchase Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average life | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships acquired | $ 79,923 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships | Discovery Benefits, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships acquired |  |  |  |  | $ 213,600 |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships | Pavestone Capital |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average life |  |  |  |  |  | 6 years 6 months |  |  |  |  |  |  |  |  |  |  |
Customer relationships acquired |  |  |  |  |  | $ 3,900 |  |  |  |  |  |  |  |  |  |  |
Customer relationships | Go Fuel Card |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average life |  |  | 5 years | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships acquired |  |  | $ 33,963 |  |  |  |  |  |  |  |  |  |  |  |  |  |

X
- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
Name: | us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 + Details
Name: | us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of shares of equity interests issued or issuable to acquire entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 + Details
Name: | us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=116868678&loc=d3e1043-128460 + Details
Name: | us-gaap_BusinessCombinationAcquisitionRelatedCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477 + Details
Name: | us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
Name: | us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
Name: | us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472 + Details
Name: | us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=121600890&loc=d3e2207-128464 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472 + Details
Name: | us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
Name: | us-gaap_Goodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13777-109266 + Details
Name: | us-gaap_GoodwillImpairmentLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of cash paid for the settlement of litigation or for other legal issues during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585 + Details
Name: | us-gaap_PaymentsForLegalSettlements
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireBusinessesGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of additional cost recognized for award under share-based payment arrangement from occurrence of event accelerating recognition of cost. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Asset Acquisition, Payments To Acquire Trade Accounts Receivable + References No definition available. + Details
Name: | wex_AssetAcquisitionPaymentsToAcquireTradeAccountsReceivable
Namespace Prefix: | wex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Asset Acquisition, Payments To Acquire Trade Accounts Receivable, Payment To Escrow + References No definition available. + Details
Name: | wex_AssetAcquisitionPaymentsToAcquireTradeAccountsReceivablePaymentToEscrow
Namespace Prefix: | wex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Asset Acquisition, Payments To Acquire Trade Accounts Receivable, Premium In Excess Of Fair Value + References No definition available. + Details
Name: | wex_AssetAcquisitionPaymentsToAcquireTradeAccountsReceivablePremiumInExcessOfFairValue
Namespace Prefix: | wex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Asset Acquisition, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles + References No definition available. + Details
Name: | wex_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedFiniteLivedIntangibles
Namespace Prefix: | wex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Asset Acquisition, Term of Agreement + References No definition available. + Details
Name: | wex_AssetAcquisitionTermofAgreement
Namespace Prefix: | wex_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Business Combination, Acquisition Related Costs, Acquisitions In Process + References No definition available. + Details
Name: | wex_BusinessCombinationAcquisitionRelatedCostsAcquisitionsInProcess
Namespace Prefix: | wex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Business Combination, Consideration Transferred, Amount Deferred + References No definition available. + Details
Name: | wex_BusinessCombinationConsiderationTransferredAmountDeferred
Namespace Prefix: | wex_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line of Credit Facility, Maximum Borrowing Capacity, Additional Capacity + References No definition available. + Details
Name: | wex_LineofCreditFacilityMaximumBorrowingCapacityAdditionalCapacity
Namespace Prefix: | wex_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Proceeds Of Excess Funds From Escrow + References No definition available. + Details
Name: | wex_ProceedsOfExcessFundsFromEscrow
Namespace Prefix: | wex_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=wex_FleetSolutionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=wex_DiscoveryBenefitsInc.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=wex_OriginalPurchaseAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=wex_DiscoveryBenefitsInc.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=wex_NoventisMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=wex_PavestoneCapitalLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=wex_GoFuelCardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |