WEX (WEX) 10-Q 29 Jul 22 2022 Q2 Quarterly report Financial data

Cover

Cover - shares	6 Months Ended
	Jun. 30, 2022	Jul. 22, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2022
Document Transition Report	false
Entity File Number	001-32426
Entity Registrant Name	WEX Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	01-0526993
Entity Address, Address Line One	1 Hancock St.,
Entity Address, City or Town	Portland,
Entity Address, State or Province	ME
Entity Address, Postal Zip Code	04101
City Area Code	207
Local Phone Number	773–8171
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	WEX
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		44,174,133
Entity Central Index Key	0001309108
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2
Amendment Flag	false

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues
Total revenues	$ 598,237	$ 459,483	$ 1,115,772	$ 870,240
Cost of services
Processing costs	137,435	116,208	269,942	225,970
Service fees	14,856	13,759	30,606	24,905
Provision for credit losses	42,186	12,962	67,826	18,021
Operating interest	3,197	2,271	5,497	4,895
Depreciation and amortization	26,633	26,451	52,635	55,645
Total cost of services	224,307	171,651	426,506	329,436
General and administrative	83,482	79,543	162,145	165,974
Sales and marketing	80,440	85,605	154,385	163,952
Depreciation and amortization	38,877	40,406	79,331	78,059
Operating income	171,131	82,278	293,405	132,819
Financing interest expense	(31,820)	(32,473)	(61,509)	(65,757)
Change in fair value of contingent consideration	(88,200)	(47,700)	(104,800)	(47,700)
Net foreign currency (loss) gain	(19,408)	1,342	(14,402)	(1,413)
Net unrealized gain on financial instruments	16,894	6,013	66,721	13,046
Income before income taxes	48,597	9,460	179,415	30,995
Income tax expense (benefit)	14,468	(746)	56,500	(2,416)
Net income	34,129	10,206	122,915	33,411
Less: Net income from non-controlling interests	0	239	268	965
Net income attributable to WEX Inc.	34,129	9,967	122,647	32,446
Change in value of redeemable non-controlling interest	0	(43,823)	34,245	(68,867)
Net income (loss) attributable to shareholders	$ 34,129	$ (33,856)	$ 156,892	$ (36,421)
Net income (loss) attributable to shareholders per share:
Basic (in dollars per share)	$ 0.76	$ (0.76)	$ 3.50	$ (0.82)
Diluted (in dollars per share)	$ 0.76	$ (0.76)	$ 3.47	$ (0.82)
Weighted average common shares outstanding:
Basic (in shares)	44,790	44,788	44,851	44,566
Diluted (in shares)	45,077	44,788	45,211	44,566
Payment processing revenue
Revenues
Total revenues	$ 312,305	$ 213,426	$ 551,783	$ 401,815
Account servicing revenue
Revenues
Total revenues	137,638	132,997	277,579	251,620
Finance fee revenue
Revenues
Total revenues	85,310	59,499	163,892	111,652
Other revenue
Revenues
Total revenues	$ 62,984	$ 53,561	$ 122,518	$ 105,153

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 34,129	$ 10,206	$ 122,915	$ 33,411
Other comprehensive loss, net of tax:
Unrealized losses on available-for-sale debt securities	(42,063)	0	(93,731)	0
Foreign currency translation	(45,744)	(2,682)	(41,438)	(9,559)
Other comprehensive loss, net of tax	(87,807)	(2,682)	(135,169)	(9,559)
Comprehensive (loss) income	(53,678)	7,524	(12,254)	23,852
Less: Comprehensive income attributable to non-controlling interests	0	239	268	647
Comprehensive (loss) income attributable to WEX Inc.	$ (53,678)	$ 7,285	$ (12,522)	$ 23,205

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Assets
Cash and cash equivalents	$ 438,754	$ 588,923
Restricted cash	815,496	667,915
Accounts receivable (net of allowances of $100,607 in 2022 and $66,306 in 2021)	4,444,958	2,891,242
Investment securities	1,442,416	948,677
Securitized accounts receivable, restricted	171,415	125,186
Prepaid expenses and other current assets	112,995	77,569
Total current assets	7,426,034	5,299,512
Property, equipment and capitalized software (net of accumulated depreciation of $492,932 in 2022 and $458,093 in 2021)	180,954	179,531
Goodwill	2,873,369	2,908,057
Other intangible assets (net of accumulated amortization of $1,087,576 in 2022 and $1,009,601 in 2021)	1,555,005	1,643,296
Investment securities	37,253	39,650
Deferred income taxes, net	7,010	5,635
Other assets	243,296	231,147
Total assets	12,322,921	10,306,828
Liabilities and Stockholders’ Equity
Accounts payable	1,958,545	1,021,911
Accrued expenses	529,865	476,971
Restricted cash payable	815,520	668,014
Short-term deposits	2,885,727	2,026,420
Short-term debt, net	175,834	155,769
Other current liabilities	33,387	50,614
Total current liabilities	6,398,878	4,399,699
Long-term debt, net	2,761,531	2,695,365
Long-term deposits	588,932	652,214
Deferred income taxes, net	181,448	192,965
Other liabilities	575,765	273,706
Total liabilities	10,506,554	8,213,949
Commitments and contingencies
Redeemable non-controlling interest	0	254,106
Stockholders’ Equity
Common stock $0.01 par value; 175,000 shares authorized; 49,482 shares issued in 2022 and 49,255 in 2021; 44,534 shares outstanding in 2022 and 44,827 in 2021	495	492
Additional paid-in capital	880,518	844,051
Retained earnings	1,445,981	1,289,089
Accumulated other comprehensive loss	(257,686)	(122,517)
Treasury stock at cost; 4,948 and 4,428 shares in 2022 and 2021, respectively	(252,941)	(172,342)
Total stockholders’ equity	1,816,367	1,838,773
Total liabilities and stockholders’ equity	$ 12,322,921	$ 10,306,828

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Accounts receivable, net of allowances	$ 100,607	$ 66,306
Property, equipment and capitalized software, accumulated depreciation	492,932	458,093
Accumulated amortization	$ 1,087,576	$ 1,009,601
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	175,000	175,000
Common stock, shares issued (in shares)	49,482	49,255
Common stock, shares outstanding (in shares)	44,534	44,827
Treasury stock, shares (in shares)	4,948	4,428

CONDENSED CONSOLIDATED STATEM_3

CONDENSED 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 balance (in shares) at Dec. 31, 2020		48,616
Beginning balance at Dec. 31, 2020	$ 1,877,911	$ 485	$ 830,729	$ (82,935)	$ (172,342)	$ 1,288,952	$ 13,022
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued under share-based compensation plans (in shares)		394
Stock issued under share-based compensation plans	22,559	$ 4	22,555
Share repurchases for tax withholdings	(21,062)		(21,062)
Stock-based compensation expense	17,886		17,886
Change in value of redeemable non-controlling interest	(25,044)					(25,044)
Foreign currency translation	(6,877)			(6,558)			(319)
Net income	22,853					22,479	374
Ending balance (in shares) at Mar. 31, 2021		49,010
Ending balance at Mar. 31, 2021	1,888,226	$ 489	850,108	(89,493)	(172,342)	1,286,387	13,077
Beginning balance (in shares) at Dec. 31, 2020		48,616
Beginning balance at Dec. 31, 2020	$ 1,877,911	$ 485	830,729	(82,935)	(172,342)	1,288,952	13,022
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock purchased (in shares)	0
Unrealized losses on available-for-sale debt securities	$ 0
Foreign currency translation	(9,559)
Ending balance (in shares) at Jun. 30, 2021		49,224
Ending balance at Jun. 30, 2021	1,794,922	$ 491	808,701	(94,459)	(172,342)	1,252,531	0
Beginning balance (in shares) at Mar. 31, 2021		49,010
Beginning balance at Mar. 31, 2021	1,888,226	$ 489	850,108	(89,493)	(172,342)	1,286,387	13,077
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued under share-based compensation plans (in shares)		214
Stock issued under share-based compensation plans	20,481	$ 2	20,479
Share repurchases for tax withholdings	$ (884)		(884)
Treasury stock purchased (in shares)	0
Stock-based compensation expense	$ 20,629		20,629
Change in value of redeemable non-controlling interest	(43,823)						(43,823)
Acquisition of non-controlling interest	(96,992)		(81,631)	(2,284)			(13,077)
Unrealized losses on available-for-sale debt securities	0
Foreign currency translation	(2,682)			(2,682)
Net income	9,967					9,967
Ending balance (in shares) at Jun. 30, 2021		49,224
Ending balance at Jun. 30, 2021	1,794,922	$ 491	808,701	(94,459)	(172,342)	1,252,531	0
Beginning balance (in shares) at Dec. 31, 2021		49,255
Beginning balance at Dec. 31, 2021	1,838,773	$ 492	844,051	(122,517)	(172,342)	1,289,089	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued under share-based compensation plans (in shares)		154
Stock issued under share-based compensation plans	772	$ 2	770
Share repurchases for tax withholdings	(12,178)		(12,178)
Stock-based compensation expense	23,682		23,682
Change in value of redeemable non-controlling interest	34,245					34,245
Unrealized losses on available-for-sale debt securities	(51,668)			(51,668)
Foreign currency translation	4,306			4,306			0
Net income	88,518					88,518	0
Ending balance (in shares) at Mar. 31, 2022		49,409
Ending balance at Mar. 31, 2022	1,926,450	$ 494	856,325	(169,879)	(172,342)	1,411,852	0
Beginning balance (in shares) at Dec. 31, 2021		49,255
Beginning balance at Dec. 31, 2021	$ 1,838,773	$ 492	844,051	(122,517)	(172,342)	1,289,089	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock purchased (in shares)	(520)
Unrealized losses on available-for-sale debt securities	$ (93,731)
Foreign currency translation	(41,438)
Ending balance (in shares) at Jun. 30, 2022		49,482
Ending balance at Jun. 30, 2022	1,816,367	$ 495	880,518	(257,686)	(252,941)	1,445,981	0
Beginning balance (in shares) at Mar. 31, 2022		49,409
Beginning balance at Mar. 31, 2022	1,926,450	$ 494	856,325	(169,879)	$ (172,342)	1,411,852	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued under share-based compensation plans (in shares)		73
Stock issued under share-based compensation plans	2,325	$ 1	2,324
Share repurchases for tax withholdings	$ (3,053)		(3,053)
Treasury stock purchased (in shares)	(80,599)				(80,599)
Stock-based compensation expense	$ 24,922		24,922
Unrealized losses on available-for-sale debt securities	(42,063)			(42,063)
Foreign currency translation	(45,744)			(45,744)
Net income	34,129					34,129
Ending balance (in shares) at Jun. 30, 2022		49,482
Ending balance at Jun. 30, 2022	$ 1,816,367	$ 495	$ 880,518	$ (257,686)	$ (252,941)	$ 1,445,981	$ 0

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) $ in Millions	3 Months Ended
	Mar. 31, 2022 USD ($)
Statement of Stockholders' Equity [Abstract]
Redeemable non-controlling interest, net of tax expense	$ 3.5

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities
Net income		$ 122,915	$ 33,411
Adjustments to reconcile net income to net cash used for operating activities:
Change in fair value of contingent consideration		104,800	47,700
Stock-based compensation		48,604	38,515
Depreciation and amortization		131,966	133,704
Amortization of premiums on investment securities		3,477	0
Debt issuance cost amortization and accretion expense		7,972	10,576
Deferred tax benefit		(15,049)	(15,778)
Provision for credit losses		67,826	18,021
Other non-cash gains		(54,089)	(10,578)
Changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable and securitized accounts receivable		(1,701,328)	(925,792)
Prepaid expenses and other current and other long-term assets		(8,961)	14,158
Accounts payable		926,415	474,469
Accrued expenses and restricted cash payable		216,421	87,871
Income taxes		6,783	(13,050)
Other current and other long-term liabilities		4,083	(15,209)
Net cash used for operating activities		(138,165)	(121,982)
Cash flows from investing activities
Purchases of property, equipment and capitalized software		(45,601)	(37,040)
Purchases of equity securities		(160)	(175)
Maturities of equity securities		0	81
Purchases of available-for-sale debt securities		(594,332)	0
Sales and maturities of available-for-sale debt securities		29,398	0
Acquisitions, net of cash and restricted cash acquired		0	(558,273)
Net cash used for investing activities		(610,695)	(595,407)
Cash flows from financing activities
Repurchase of share-based awards to satisfy tax withholdings		(15,231)	(21,946)
Purchase of treasury shares		(80,599)	0
Proceeds from stock option exercises		3,097	43,040
Net change in deposits		797,903	451,291
Net activity on other debt		50,745	(20,000)
Borrowings on revolving credit facility		1,273,100	719,800
Repayments on revolving credit facility		(1,212,500)	(454,800)
Borrowings on term loans		0	112,819
Repayments on term loans		(31,671)	(31,988)
Redemption of Notes		0	(400,000)
Debt issuance costs		0	(8,934)
Net change in securitized debt		8,652	9,497
Net cash provided by financing activities		793,496	398,779
Effect of exchange rates on cash, cash equivalents and restricted cash		(47,224)	(9,512)
Net change in cash, cash equivalents and restricted cash		(2,588)	(328,122)
Cash, cash equivalents and restricted cash at beginning of period	[1]	1,256,838	1,329,653
Cash, cash equivalents and restricted cash at end of period	[1]	1,254,250	1,001,531
Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract]
Capital expenditures incurred but not paid		7,057	1,979
Initial deferred liability from acquisition of remaining interest in PO Holding		216,594	0
Purchases of available-for-sale debt securities, unsettled as of period-end		25,806	0
Non-cash contribution from non-controlling interest		0	12,457
Deferred cash consideration as part of asset acquisition		0	47,408
Contingent consideration as part of asset acquisition		0	27,200
Cash, Cash Equivalents, Restricted Cash And Restricted Cash Equivalents [Roll Forward]
Cash and cash equivalents at beginning of period		588,923	852,033
Restricted cash at beginning of period		667,915	477,620
Cash, cash equivalents and restricted cash at beginning of period	[1]	1,256,838	1,329,653
Cash and cash equivalents at end of period		438,754	425,322
Restricted cash at end of period		815,496	576,209
Cash, cash equivalents and restricted cash at end of period	[1]	$ 1,254,250	$ 1,001,531
[1]The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within our condensed consolidated balance sheets to amounts within our condensed consolidated statements of cash flows.

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	1. Basis of Presentation Basis of Presentation The accompanying condensed consolidated financial statements have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10–Q and Rule 10–01 of Regulation S–X. Accordingly, they exclude certain disclosures required by GAAP for a complete set of financial statements. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements that are included in the Company’s Annual Report on Form 10–K for the year ended December 31, 2021, filed with the SEC on March 1, 2022. In the opinion of management, all adjustments considered necessary for a fair presentation in accordance with GAAP, which are of a normal recurring nature, have been included. Operating results for the three and six months ended June 30, 2022 are not necessarily indicative of the results for any future periods or the year ending December 31, 2022. We have applied the same accounting policies in preparing these quarterly financial statements as we did in preparing our 2021 annual financial statements. The Company rounds amounts in the condensed consolidated financial statements to thousands and calculates all per-share data from underlying whole-dollar amounts. Thus, certain amounts may not foot, crossfoot or recalculate based on reported numbers due to rounding.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	6 Months Ended
	Jun. 30, 2022
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	2. Recent Accounting Pronouncements The following table provides a brief description of (i) recent accounting pronouncements adopted during the six months ended June 30, 2022 and (ii) those not yet adopted, that could have a material effect on our financial statements. Standard Description Date of Adoption Method of adoptions and effect on financial statements or other significant matters Adopted During the Six Months Ended June 30, 2022 ASU 2021-08, Business Combinations This standard requires acquirers within the scope of Subtopic 805-10, Business Combinations to recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with Topic 606. This will generally result in an acquirer recognizing and measuring acquired contract assets and liabilities consistent with how they were recognized and measured in an acquiree’s financial statements if such financial statements were prepared in accordance with GAAP. Previously, contract assets and contract liabilities acquired were recognized at their fair value on the acquisition date. Effective for fiscal years beginning after December 15, 2022. The Company early adopted this ASU effective January 1, 2022. Adoption had no material effect on the Company’s condensed consolidated financial statements for the three and six months ended June 30, 2022. The guidelines of this ASU will be applied prospectively for business combinations in the scope of ASC 805. Not Adopted as of June 30, 2022 ASU 2020–04, Reference Rate Reform and ASU 2021–01, Reference Rate Reform: Scope These standards provide optional guidance for a limited period of time to ease the potential financial reporting burden in accounting for (or recognizing the effects of) the discontinuation of LIBOR resulting from reference rate reform. The amendments provide optional expedients and exceptions for applying GAAP to contracts and other transactions impacted by reference rate reform. If certain criteria are met, an entity will not be required to remeasure or reassess contracts impacted by reference rate reform. Election is optional and available through December 31, 2022. The Company is currently evaluating the implications of these amendments to its current efforts for reference rate reform implementation and any impact the adoption of these ASUs would have on its financial condition and results of operations. While the Company has not yet determined if and when it will adopt these standards, the adoption of such standards is not expected to have a material effect on the Company’s condensed consolidated financial statements.

Revenues

Revenues	6 Months Ended
	Jun. 30, 2022
Revenue from Contract with Customer [Abstract]
Revenues	3. Revenues In accordance with Topic 606, revenue is recognized when, or as, performance obligations are satisfied as defined by the terms of the contract, in an amount that reflects the consideration to which the Company expects to be entitled in exchange for goods or services provided. The following tables disaggregate the Company’s consolidated revenues, substantially all of which relate to services transferred to the customer over time: Three Months Ended June 30, 2022 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Topic 606 revenues Payment processing revenue $ 202,359 $ 88,608 $ 21,338 $ 312,305 Account servicing revenue 4,557 10,400 83,378 98,335 Other revenue 22,249 82 8,366 30,697 Total Topic 606 revenues $ 229,165 $ 99,090 $ 113,082 $ 441,337 Non-Topic 606 revenues 150,058 1,320 5,522 156,900 Total revenues $ 379,223 $ 100,410 $ 118,604 $ 598,237 Three Months Ended June 30, 2021 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Topic 606 revenues Payment processing revenue $ 126,450 $ 68,282 $ 18,694 $ 213,426 Account servicing revenue 4,336 11,222 79,482 95,040 Other revenue 22,422 1,656 5,109 29,187 Total Topic 606 revenues $ 153,208 $ 81,160 $ 103,285 $ 337,653 Non-Topic 606 revenues 121,180 602 48 121,830 Total revenues $ 274,388 $ 81,762 $ 103,333 $ 459,483 Six Months Ended June 30, 2022 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Topic 606 revenues Payment processing revenue $ 354,265 $ 153,683 $ 43,835 $ 551,783 Account servicing revenue 8,902 21,158 170,118 200,178 Other revenue 42,174 395 16,429 58,998 Total Topic 606 revenues $ 405,341 $ 175,236 $ 230,382 $ 810,959 Non-Topic 606 revenues 293,021 2,425 9,367 304,813 Total revenues $ 698,362 $ 177,661 $ 239,749 $ 1,115,772 Six Months Ended June 30, 2021 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Topic 606 revenues Payment processing revenue $ 237,026 $ 125,530 $ 39,259 $ 401,815 Account servicing revenue 8,705 21,909 147,427 $ 178,041 Other revenue 42,668 3,456 12,854 58,978 Total Topic 606 revenues $ 288,399 $ 150,895 $ 199,540 $ 638,834 Non-Topic 606 revenues 229,826 1,509 71 231,406 Total revenues $ 518,225 $ 152,404 $ 199,611 $ 870,240 Contract Balances The majority of the Company’s receivables, which are excluded from the table below, 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. The Company’s contract assets consist of upfront payments to customers under long-term contracts and are recorded upon the later of when the Company recognizes revenue for the transfer of the related goods or services or when the Company pays or promises to pay the consideration. The resulting asset is amortized against revenue as the Company satisfies its performance obligations under these arrangements. The Company’s contract liabilities consist of customer payments received before the Company has satisfied the associated performance obligations. The following table provides information about these contract balances: (In thousands) Contract balance Location on the condensed consolidated balance sheets June 30, 2022 December 31, 2021 Receivables Accounts receivable, net $ 45,856 $ 49,303 Contract assets Prepaid expenses and other current assets 15,242 8,975 Contract assets Other assets 36,603 40,718 Contract liabilities Other current liabilities 8,112 9,123 Contract liabilities Other liabilities 66,015 58,900 During the three and six months ended June 30, 2022, the Company recognized revenue of $4.1 million and $9.0 million, respectively, related to contract liabilities existing as of December 31, 2021. Remaining Performance Obligations The Company’s unsatisfied or partially unsatisfied performance obligations as of June 30, 2022 represent the remaining minimum monthly fees on a portion of contracts across the lines of business, deferred revenue associated with stand ready payment processing obligations and contractually obligated professional services yet to be provided by the Company. The following table includes revenue expected to be recognized related to remaining performance obligations at the end of the reporting period. (In thousands) Remaining 2022 2023 2024 2025 2026 2027 Thereafter Total Minimum monthly fees 1 $ 34,454 $ 38,888 $ 22,938 $ 9,852 $ 4,161 $ 3,065 $ 1,500 $ 114,858 Professional services 2 1,675 104 3 3 — — — 1,785 Other 3 2,033 8,541 13,675 18,886 22,709 26,838 5,929 98,611 Total remaining performance obligations $ 38,162 $ 47,533 $ 36,616 $ 28,741 $ 26,870 $ 29,903 $ 7,429 $ 215,254 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. 3 Represents deferred revenue and contractual minimums associated with payment processing service obligations. Consideration associated with certain relationships is variable and the measurement and estimation of contract consideration is contingent upon payment processing volumes and maintaining volume shares, among others.

Acquisitions

Acquisitions	6 Months Ended
	Jun. 30, 2022
Business Combination and Asset Acquisition [Abstract]
Acquisitions	4. Acquisitions 2022 Transactions Acquisition of Remaining Interest in PO Holding On March 7, 2022, WEX Inc. and SBI entered into a share purchase agreement (the “Share Purchase Agreement”) whereby SBI sold, and WEX Inc. purchased, SBI’s remaining 4.53 percent interest in PO Holding for a purchase price of $234.0 million plus any interest accruing pursuant to the terms of the Share Purchase Agreement. The purchase price is payable in three installments of $76.7 million in each of March 2024, 2025 and 2026, with a final payment of $4.0 million also payable in March 2026. Pursuant to the Share Purchase Agreement, WEX Inc. owes SBI interest on the outstanding purchase price balance from March 2024 to March 2025 at the 12-month Secured Overnight Financing Rate (“SOFR”) (as determined on March 1, 2024) plus 1.25 percent and on the outstanding balance from March 2025 to March 2026 at the 12-month SOFR rate (as determined on March 3, 2025) plus 2.25 percent, except that no interest accrues on the $4.0 million payment due in March 2026. Using a discount rate of 3.4 percent as of the acquisition date, the Company recorded the deferred liability under this Share Purchase Agreement at its initial net present value of $216.6 million. The associated discount relative to the purchase price will be amortized as interest expense using the effective interest method over the repayment term. This transaction makes PO Holding, the direct parent of WEX Health, a wholly owned subsidiary of WEX Inc. to which the Company is solely entitled to the economic benefits. See Note 14, Redeemable Non-Controlling Interest, for more information. 2021 Transactions Asset Acquisition On April 1, 2021, WEX Inc. completed the acquisition of certain contractual rights to serve as custodian or sub-custodian to over $3 billion of HSAs from the HealthcareBank division of Bell Bank, which is owned by State Bankshares, Inc. This acquisition increased the Company’s role in its customer-directed healthcare ecosystem and aligns with its growth strategy. On the closing of the acquisition, WEX Inc. paid Bell Bank initial cash consideration of $200.0 million. The Company is required to make two additional cash payments to Bell Bank in association with this acquisition of $25.0 million in July 2023 and $12.5 million in January 2024. The purchase agreement also includes potential additional consideration payable to Bell Bank annually that is calculated on a quarterly basis and is contingent, and based, upon any future increases in the Federal Funds rate. The contingent payment period began on July 1, 2021 and extends until the earlier of (i) the year ending December 31, 2030, or (ii) the date when the cumulative amount paid as contingent consideration equals $225.0 million. Given the acquisition does not meet the definition of a business, the Company accounted for this transaction as an asset acquisition, recognizing $263.4 million as a definite-lived intangible rights asset as of the acquisition date, with a weighted average life of 5.6 years. As part of this acquisition WEX Inc. allocated $11.2 million of the initial cash consideration to the repurchase of SBI’s then non-controlling interest in the U.S. Health business, reducing SBI’s ownership percentage to 4.53 percent at that time. Additionally, the Company recorded an initial deferred liability of $47.4 million equal to the present value of the deferred cash payments and a derivative liability of $27.2 million related to the additional consideration contingent upon future increases in the Federal Funds rate. See Note 13, Fair Value, for further information on the valuation of the derivative liability. Transaction costs related to the acquisition were immaterial and expensed as incurred. Acquisition of Remaining Interest in WEX Europe Services On April 13, 2021, the Company acquired the remaining interest in WEX Europe Services, which consisted of 25 percent of the issued ordinary share capital, for a purchase price of $97.0 million. As a result of the transaction, the Company now owns 100 percent of the issued ordinary share capital of WEX Europe Services, which operates as our European Fleet business. This transaction further streamlines the European Fleet business in order to create revenue synergies and increases our ability to manage the associated cost structure. Given the Company had a controlling interest in WEX Europe Services prior to the transaction, the acquisition has been accounted for as an equity transaction, resulting in a reduction of additional paid-in capital by $81.6 million, a $13.1 million elimination of the 25 percent non-controlling interest in WEX Europe Services and a reduction of accumulated other comprehensive income by $2.3 million. benefitexpress Acquisition On June 1, 2021, WEX Inc.’s subsidiary, WEX Health, completed the acquisition of Cirrus Holdings, LLC, the indirect owner of Benefit Express Services, LLC, a provider of highly configurable, cloud-based benefits administration technologies and services doing business under the name benefitexpress (the “benefitexpress Acquisition”). The transaction expanded the Company’s role in the healthcare ecosystem, bringing benefit administration, compliance services, and consumer-directed health and lifestyle spending accounts together to form a full-service benefits marketplace. Pursuant to the terms of the definitive purchase agreement, WEX Health consummated the benefitexpress Acquisition for total consideration of approximately $275 million, subject to certain working capital and other adjustments. The benefitexpress Acquisition has been accounted for using the acquisition method of accounting, which requires that assets acquired and liabilities assumed be recognized at their respective fair values on the acquisition date. The table below summarizes the allocation of such fair value of assets acquired and liabilities assumed. During the three months ended June 30, 2022, the purchase accounting for the acquisition became final. During the three and six months ended June 30, 2022, no measurement period adjustments were recorded. The following is a summary of the final allocation of the purchase price to the assets and liabilities acquired, based on the fair value at the date of acquisition: (In thousands) As of June 30, 2022 Cash consideration transferred, net of $15.0 million in cash and restricted cash acquired $ 259,061 Less: Accounts receivable 3,103 Customer relationships (1)(4) 84,400 Developed technologies (2)(4) 19,600 Non-compete (3)(4) 2,150 Other assets 4,387 Accrued expenses (3,498) Restricted cash payable (14,328) Other liabilities (5,177) Recorded goodwill $ 168,424 (1) Weighted average life - 9.3 years. (2) Weighted average life - 3.6 years. (3) Weighted average life - 2.5 years. (4) The weighted average life of the $106.2 million of amortizable intangible assets acquired in this business combination is 8.1 years.

Accounts Receivable, net of All

Accounts Receivable, net of Allowances	6 Months Ended
	Jun. 30, 2022
Receivables [Abstract]
Accounts Receivable, net of Allowances	5. Accounts Receivable, net of Allowances Accounts receivable consists of amounts billed to and due from customers across a wide range of industries and other third parties. The Company often extends short-term credit to cardholders by paying the merchant for the purchase price less the fees it retains and records as revenue, then subsequently collecting the total purchase price from the cardholder. The Company also extends revolving credit to certain small fleets. The Company had approximately $145.3 million and $93.7 million in gross receivables with revolving credit balances as of June 30, 2022 and December 31, 2021, respectively. The allowance for accounts receivable consists of reserves for both credit and fraud losses, reflecting management’s current estimate of uncollectible balances on its accounts receivable. The following tables present changes in the accounts receivable allowances by portfolio segment: Three Months Ended June 30, 2022 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Balance, beginning of period $ 63,938 $ 11,636 $ 679 $ 76,253 Net provision for credit losses 1 42,446 (726) 466 42,186 Charges to other accounts 2 10,217 169 (31) 10,355 Charge-offs (29,500) (186) (127) (29,813) Recoveries of amounts previously charged-off 2,809 — — 2,809 Currency translation (686) (497) — (1,183) Balance, end of period $ 89,224 $ 10,396 $ 987 $ 100,607 Three Months Ended June 30, 2021 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Balance, beginning of period $ 46,181 $ 8,650 $ 312 $ 55,143 Provision for credit losses 1 11,764 1,117 81 12,962 Charges to other accounts 2 3,848 — — 3,848 Charge-offs (13,593) (2,328) (10) (15,931) Recoveries of amounts previously charged-off 1,365 7 153 1,525 Currency translation 151 73 — 224 Balance, end of period $ 49,716 $ 7,519 $ 536 $ 57,771 Six Months Ended June 30, 2022 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Balance, beginning of period $ 55,758 $ 9,931 $ 617 $ 66,306 Provision for credit losses 1 65,670 1,421 735 67,826 Charges to other accounts 2 18,617 169 (101) 18,685 Charge-offs (55,295) (447) (274) (56,016) Recoveries of amounts previously charged-off 5,230 — 10 5,240 Currency translation (756) (678) — (1,434) Balance, end of period $ 89,224 $ 10,396 $ 987 $ 100,607 Six Months Ended June 30, 2021 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Balance, beginning of period $ 49,267 $ 9,610 $ 270 $ 59,147 Provision for credit losses 1 16,128 1,752 141 18,021 Charges to other accounts 2 8,221 — — 8,221 Charge-offs (26,367) (3,860) (28) (30,255) Recoveries of amounts previously charged-off 2,881 13 153 3,047 Currency translation (414) 4 — (410) Balance, end of period $ 49,716 $ 7,519 $ 536 $ 57,771 1 The provision is comprised of estimated credit losses based on the Company’s loss-rate experience and includes adjustments required for forecasted credit loss information. The provision for credit losses reported within this table also includes the provision for fraud losses. 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 substantially represent the offset against the late fee revenue recognized when the Company establishes a reserve for such waived amounts. Concentration of Credit Risk The receivables portfolio primarily consists of a large group of homogeneous balances across a wide range of industries, which are collectively evaluated for impairment. No individual customer had a receivable balance representing 10 percent or more of the outstanding receivables balance at June 30, 2022 or December 31, 2021. The following table presents the outstanding balance of trade accounts receivable that are less than 30 and 60 days past due, shown in each case as a percentage of total trade accounts receivable: Delinquency Status June 30, 2022 December 31, 2021 Less than 30 days past due 99 % 98 % Less than 60 days past due 99 % 99 %

Repurchases of Common Stock

Repurchases of Common Stock	6 Months Ended
	Jun. 30, 2022
Equity [Abstract]
Repurchases of Common Stock	6. Repurchases of Common Stock Under a share buyback plan authorized by our board of directors and extending through September 30, 2025 (the “Repurchase Program”), the Company may repurchase up to $150.0 million in shares of its common stock through open market purchases, privately negotiated transactions, block trades or otherwise. The number of shares repurchased by the Company during 2022 pursuant to the Repurchase Program have been recorded as treasury stock and are included in the following table. There were no shares repurchased pursuant to the Repurchase Program during the six months ended June 30, 2021. (In thousands, except for per share amounts) Shares Total Cost Average Cost Per Share Treasury stock purchased during the three months ended June 30, 2022 520 $ 80,599 $ 155.06

Earnings per Share

Earnings per Share	6 Months Ended
	Jun. 30, 2022
Earnings Per Share [Abstract]
Earnings per Share	7. Earnings per Share Basic earnings per share is computed by dividing net income (loss) attributable to shareholders by the weighted average number of shares of common stock and vested 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 numerator is increased for tax effected interest expense associated with our Convertible Notes and the denominator is increased for the assumed issuance of common shares upon conversion of the Convertible Notes under the “if-converted” method, unless the effect is anti-dilutive. Additionally, diluted earnings per share includes the assumed exercise of dilutive options, the assumed issuance of unvested restricted stock units, performance-based awards for which the performance condition has been met as of the date of determination and contingently issuable shares that would be issuable if the end of the reporting period was the end of the contingency period, 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 (loss) attributable to shareholders and reconciles basic and diluted shares outstanding used in the earnings per share computations: Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2022 2021 2022 2021 Net income (loss) attributable to shareholders $ 34,129 $ (33,856) $ 156,892 $ (36,421) Weighted average common shares outstanding – Basic 44,790 44,788 44,851 44,566 Dilutive impact of share-based compensation awards 1 287 — 360 — Weighted average common shares outstanding – Diluted 1, 2 45,077 44,788 45,211 44,566 1 For the three and six months ended June 30, 2022, 0.7 million and 0.6 million, respectively, of outstanding share-based compensation awards were excluded from the computation of diluted earnings per share under the treasury stock method, as the effect of including these awards would be anti-dilutive. For the three and six months ended June 30, 2021, 0.9 million and 1.0 million, respectively, of outstanding share-based compensation awards were excluded from the computation of diluted earnings per share under the treasury stock method, including share-based compensation awards that would otherwise have been dilutive but for the Company’s net loss position, as the effect of including these awards would be anti-dilutive.

Derivative Instruments

Derivative Instruments	6 Months Ended
	Jun. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	8. 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. Interest rate swap contracts The Company has entered into interest rate swap contracts to manage the interest rate risk associated with its outstanding variable-interest rate borrowings. Such contracts are intended to economically hedge the LIBOR component of future interest payments associated with outstanding borrowings under the Company’s Amended and Restated Credit Agreement. A summary of the Company’s interest rate swap contracts with a collective notional amount of $1.9 billion outstanding as of June 30, 2022 is as follows: Contract Inception Contract End Fixed Interest Rates 1 Notional Amount at inception ( in thousands ) December 2017 December 2022 2.204% $ 300,000 March 2020 March 2023 1.954% 150,000 March 2019 March 2023 1.956% 100,000 March 2019 March 2023 2.413% 200,000 March 2020 December 2023 1.862% 200,000 May 2021 May 2024 0.435% 150,000 May 2021 May 2024 0.440% 150,000 May 2021 May 2025 0.678% 300,000 May 2021 May 2026 0.909% 150,000 May 2021 May 2026 0.910% 150,000 1 Fixed interest rates payable by WEX. Counterparties pay floating rate equal to the one-month USD LIBOR. The following table presents information on the location and amounts of interest rate swap gains and losses: (In thousands) Three Months Ended June 30, Six Months Ended June 30, Derivatives Not Designated as Hedging Instruments Location of Gain (Loss) Recognized in the Condensed Consolidated Statement of Operations 2022 2021 2022 2021 Interest rate swap contracts – unrealized portion Net unrealized gain (loss) on financial instruments $ 17,775 $ 5,962 $ 68,871 $ 13,481 Interest rate swap contracts – realized portion Financing interest expense $ (3,031) $ (6,081) $ (8,912) $ (11,538) Derivative instruments and their related gains and losses are reported within cash flows from operating activities within the condensed consolidated statements of cash flows. See Note 13, Fair Value, for more information regarding the valuation of the Company’s derivatives.

Deposits

Deposits	6 Months Ended
	Jun. 30, 2022
Banking and Thrift, Interest [Abstract]
Deposits	9. Deposits WEX Bank’s regulatory status enables it to raise capital to fund the Company’s working capital requirements by issuing deposits, subject to FDIC rules governing minimum financial ratios. See Note 19, Supplementary Regulatory Capital Disclosure, for further information concerning these FDIC requirements. WEX Bank accepts its deposits through certain customers as required collateral for credit that has been extended (“customer deposits”) and contractual arrangements for brokered and non-brokered certificate of deposit and money market deposit products. Additionally, beginning in October 2021, WEX Bank holds HSA deposits transferred from third-party depository partners. See Note 4, Acquisitions, for more information regarding WEX Inc.’s April 2021 acquisition of contractual rights to serve as custodian or sub-custodian of these deposits. Customer deposits are generally non-interest bearing, certificates of deposit are issued at fixed rates, money market deposits are issued at both fixed and variable interest rates based on LIBOR or the Federal Funds rate and HSA deposits are issued at rates as defined within the consumer account agreements. The following table presents the composition of deposits, which are classified as short-term or long-term based on their contractual maturities: (In thousands) June 30, 2022 December 31, 2021 Customer deposits $ 136,866 $ 129,180 Contractual deposits with maturities within 1 year 1,2 364,337 566,427 Interest-bearing money market deposits 1 314,017 370,813 HSA deposits 3 2,070,507 960,000 Short-term contractual deposits 2,885,727 2,026,420 Contractual deposits with maturities greater than 1 year and less than 5 years 1,2 588,932 652,214 Total deposits $ 3,474,659 $ 2,678,634 Weighted average cost of HSA deposits outstanding 0.04 % 0.03 % Weighted average cost of funds on contractual deposits outstanding 0.61 % 0.48 % Weighted average cost of interest-bearing money market deposits outstanding 1.71 % 0.20 % 1 As of June 30, 2022 and December 31, 2021, all certificates of deposit and money market deposits were in denominations of $250,000 or less, corresponding to FDIC deposit insurance limits. 2 Includes certificates of deposit and certain money market deposits, which have a fixed maturity and interest rate. 3 Deposits held associated with the HSA custodial assets. HSA deposits are recorded within short-term deposits on the condensed consolidated balance sheet as the funds can be withdrawn by the account holders on demand. In accordance with regulatory requirements, WEX Bank normally maintains reserves against a portion of its outstanding customer deposits by keeping balances with the Federal Reserve Bank, however, due to currently relaxed Federal Reserve requirements enacted in response to the COVID-19 pandemic, there was no required reserve at June 30, 2022 and December 31, 2021.

Financing and Other Debt

Financing and Other Debt	6 Months Ended
	Jun. 30, 2022
Debt Disclosure [Abstract]
Financing and Other Debt	10. Financing and Other Debt The following table summarizes the Company’s total outstanding debt by type as of June 30, 2022 and December 31, 2021. (In thousands) June 30, 2022 December 31, 2021 Term loans: Tranche A Term Loans $ 917,281 $ 941,742 Tranche B Term Loans 1,423,975 1,431,185 Total term loans $ 2,341,256 $ 2,372,927 Borrowings on Revolving Credit Facility 180,400 119,800 Convertible Notes 310,000 310,000 Securitized debt 102,449 100,861 Participation debt 52,245 1,500 Total gross debt 1 $ 2,986,350 $ 2,905,088 1 See Note 13, Fair Value, for information regarding the fair value of the Company’s debt. The following table summarizes the Company’s total outstanding debt by balance sheet classification: (In thousands) June 30, 2022 December 31, 2021 Current portion of gross debt $ 185,791 $ 165,703 Less: Unamortized debt issuance costs/debt discount (9,957) (9,934) Short-term debt, net $ 175,834 $ 155,769 Long-term portion of gross debt $ 2,800,559 $ 2,739,385 Less: Unamortized debt issuance costs/debt discount (39,028) (44,020) Long-term debt, net $ 2,761,531 $ 2,695,365 Supplemental information: Letters of credit 1 $ 31,209 $ 51,392 Remaining borrowing capacity on Revolving Credit Facility 2 $ 718,391 $ 758,808 1 Credit support for lease agreements, virtual card and fuel payment processing activity at the Company’s foreign subsidiaries. 2 Contingent on maintaining compliance with the financial covenants as defined in the Company’s Amended and Restated Credit Agreement. Amended and Restated Credit Agreement As part of the Amended and Restated Credit Agreement, we have senior secured tranche A term loans (the “Tranche A Term Loans”), senior secured tranche B term loans (the “Tranche B Term Loans”) and revolving credit commitments in an aggregate amount of $930.0 million under the Company’s secured revolving credit facility (the “Revolving Credit Facility”). Prior to maturity, the Tranche A Term Loans and Tranche B Term Loans require scheduled quarterly payments of $12.2 million and $3.6 million, respectively, due on the last day of each March, June, September and December. Borrowings under the Revolving Credit Facility can generally be rolled forward with interest rate resets through maturity. The Revolving Credit Facility and the Tranche A Term Loans bear interest at variable rates, at the Company’s option, plus an applicable margin determined based on the Company’s consolidated leverage ratio. The Tranche B Term Loans bear interest at variable rates, at the Company’s option, plus an applicable margin, which is fixed at 1.25 percent for base rate borrowings and 2.25 percent with respect to eurocurrency rate borrowings. As of June 30, 2022 and December 31, 2021, amounts outstanding under the Amended and Restated Credit Agreement bore a weighted average effective interest rate of 3.7 percent and 2.2 percent, respectively. The Company maintains interest rate swap contracts to manage the interest rate risk associated with its outstanding variable-interest rate borrowings. See Note 8, Derivative Instruments, for further discussion. In addition, the Company pays a quarterly commitment fee at a rate per annum ranging, as of June 30, 2022, from 0.25 percent to 0.50 percent of the daily unused portion of the Revolving Credit Facility (which was 0.30 percent and 0.40 percent at June 30, 2022 and December 31, 2021, respectively) determined based on the Company’s consolidated leverage ratio. Debt issuance costs incurred and capitalized in conjunction with the Amended and Restated Credit Agreement are being amortized into interest expense over the term of the Amended and Restated Credit Agreement using the effective interest method. Convertible Notes The Company has issued Convertible Notes in an aggregate principal amount of $310.0 million due on July 15, 2027 to an affiliate of Warburg Pincus LLC (together with its affiliate, “Warburg Pincus”). Interest on the Convertible Notes is calculated at a fixed rate of 6.5 percent per annum, payable semi-annually in arrears on January 15 and July 15 of each year. At the Company’s option, interest is either payable in cash, through accretion to the principal amount of the Convertible Notes, or a combination of cash and accretion. The Convertible Notes may be converted at the option of the holders at any time prior to maturity, or earlier redemption or repurchase of the Convertible Notes, based upon an initial conversion price of $200 per share of common stock, subject to customary adjustments as set forth in the indenture. The Company may settle conversions of Convertible Notes, at its election, in cash, shares of the Company’s common stock, or a combination thereof. Based on the closing price of the Company’s common stock as of June 30, 2022, the “if-converted” value of the Convertible Notes was less than the respective principal amount. The Company will have the right, at any time after July 1, 2023, to redeem the Convertible Notes in whole or in part if the closing price of WEX’s common stock exceeds certain thresholds, as defined within the indenture. In the event of certain fundamental change transactions, including certain change of control transactions and delisting events involving the Company, holders of the Convertible Notes will have the right to require the Company to repurchase its Convertible Notes at 105 percent of the outstanding principal amount of the Convertible Notes, plus the present value of future interest payments through the date of maturity. No such repurchase has occurred through June 30, 2022. The Company accounts for the Convertible Notes and its conversion feature as a single unit of account. The debt discount and debt issuance costs associated with the Convertible Notes are amortized to interest expense using the effective interest rate method over the seven-year contractual life of the Convertible Notes. As of both June 30, 2022 and December 31, 2021, the Convertible Notes had an effective interest rate of 7.5 percent. The Convertible Notes consist of the following: (In thousands) June 30, 2022 December 31, 2021 Principal 1 $ 310,000 $ 310,000 Less: Unamortized discounts (11,867) (12,844) Less: Unamortized issuance cost (1,911) (2,068) Net carrying amount of Convertible Notes $ 296,222 $ 295,088 1 Recorded within long-term debt, net on the condensed consolidated balance sheets, offset by the long-term portion of unamortized discounts and issuance cost. The following table sets forth total interest expense recognized for the Convertible Notes: Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2022 2021 2022 2021 Interest on 6.5 percent coupon $ 5,038 $ 5,038 $ 10,075 $ 10,075 Amortization of debt discount and debt issuance costs 541 501 1,134 1,054 $ 5,579 $ 5,539 $ 11,209 $ 11,129 Securitization Facilities The Company is party to two securitized debt agreements with MUFG Bank, Ltd., both through April 2023. Under the terms of these agreements, each month on a revolving basis, the Company sells certain of its Australian and European receivables to bankruptcy-remote subsidiaries consolidated by the Company, which in turn use the receivables as collateral to issue securitized debt, which is recorded in short-term debt, net on the condensed consolidated balance sheets. Amounts collected on the securitized receivables are restricted to pay the securitized debt and are not available for general corporate purposes. The Company pays interest on the outstanding balance of the securitized debt based on variable interest rates plus an applicable margin. The effective interest rate on the total outstanding securitized debt balance was 1.42 percent and 0.91 percent as of June 30, 2022 and December 31, 2021, respectively. Participation Debt From time to time, WEX Bank enters into participation agreements with third-party banks to fund customers’ balances that exceed WEX Bank’s lending limit to individual customers. Associated unsecured borrowings generally carry a variable interest rate set according to an applicable reference rate plus a margin, which ranged from 2.25 percent to 2.50 percent as of June 30, 2022. As of June 30, 2022, the Company had outstanding participation agreements for the borrowing of up to $60.0 million through May 31, 2023 and up to $40.0 million thereafter through December 31, 2023. As of June 30, 2022 and December 31, 2021, there was $52.2 million and $1.5 million borrowed against these participation agreements, respectively. Outstanding participation debt of $20.0 million and $1.5 million was recorded within short-term debt, net on the condensed consolidated balance sheets as of June 30, 2022 and December 31, 2021, respectively, with the remaining outstanding balance of $32.2 million as of June 30, 2022 recorded within long-term debt, net. As of June 30, 2022 and December 31, 2021, the average interest rate on these agreements was 4.02 percent and 2.54 percent, respectively. Borrowed Federal Funds WEX Bank borrows from uncommitted federal funds lines to supplement the financing of the Company’s accounts receivable. There were no outstanding borrowings as of June 30, 2022 and December 31, 2021. Other

Off-Balance Sheet Arrangements

Off-Balance Sheet Arrangements	6 Months Ended
	Jun. 30, 2022
Receivables [Abstract]
Off-Balance Sheet Arrangements	11. Off–Balance Sheet Arrangements WEX Europe Services and WEX Bank are each party to separate accounts receivable factoring arrangements with unrelated third-party financial institutions to sell certain of their accounts receivable balances. Each subsidiary continues to service these receivables post-transfer with no participating interest. The Company obtained true-sale opinions from independent attorneys, stating that each respective factoring agreement provides legal isolation upon bankruptcy or receivership under local law. As such, transfers under these arrangements are treated as a sale and are accounted for as a reduction in trade accounts receivable because effective control of the receivables is transferred to the buyers. Proceeds received, which are recorded net of applicable costs or negotiated discount rates, are recorded in operating activities in the condensed consolidated statements of cash flows. Losses on factoring are recorded within cost of services in the condensed consolidated statements of operations. The WEX Europe Services agreement automatically renews each January 1 unless either party gives not less than 90 days written notice of their intention to withdraw. Under this agreement, accounts receivable are sold without recourse to the extent that the customer balances are maintained at or below the credit limit established by the buyer. If customer receivable balances exceed the buyer’s credit limit, the Company maintains the risk of default. The Company sold $159.6 million and $304.6 million of accounts receivable during the three and six months ended June 30, 2022, respectively, and $144.7 million and $263.7 million during the three and six months ended June 30, 2021, respectively, under this arrangement. For the three and six months ended June 30, 2022, the losses on factoring were $0.8 million and $1.5 million, respectively. For the three and six months ended June 30, 2021, the losses on factoring were $0.7 million and $1.3 million, respectively. As of June 30, 2022 and December 31, 2021, the amounts of outstanding transferred receivables in excess of established credit limits were immaterial. Charge-backs on balances in excess of the credit limits during each of the three and six months ended June 30, 2022 and 2021 were immaterial.

Investment Securities

Investment Securities	6 Months Ended
	Jun. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Investment Securities	12. Investment Securities The Company’s investment securities consist of (i) custodial assets deposited with, managed and invested by WEX Bank through an investment manager, which are reflected within current assets on the condensed consolidated balance sheets and (ii) securities purchased and held by WEX Bank primarily to meet the requirements of the Community Reinvestment Act, which are reflected within non-current assets on the condensed consolidated balance sheets. Investment securities are reflected at fair value and are classified as current or long-term based on management’s determination of whether such securities are available for use in current operations, regardless of the securities’ stated maturity dates. Accrued interest on investment securities is recorded within prepaid expenses and other current assets on the condensed consolidated balance sheets. As of June 30, 2022 and December 31, 2021, accrued interest on investment securities was $7.4 million and $4.2 million, respectively. The cost basis of investment securities is based on the specific identification method. Purchases, sales and maturities associated with investment securities are treated as investing activities within the condensed consolidated statements of cash flows. The Company’s amortized cost and estimated fair value of investment securities as of June 30, 2022 and December 31, 2021 are presented below: (In thousands) Amortized Cost Total Total Fair Value 1 As of June 30, 2022 Current: Debt securities: U.S. treasury notes $ 405,640 — 28,103 377,537 Corporate debt securities 527,866 6 41,282 486,590 Municipal bonds 53,013 33 4,518 48,528 Asset-backed securities 208,634 166 7,230 201,570 Mortgage-backed securities 346,771 184 18,764 328,191 Total $ 1,541,924 $ 389 $ 99,897 $ 1,442,416 Non-current: Debt securities: Municipal bonds $ 3,081 $ — $ 360 $ 2,721 Asset-backed securities 149 1 — 150 Mortgage-backed securities 116 5 — 121 Mutual fund 28,160 — 2,899 25,261 Pooled investment fund 9,000 — — 9,000 Total $ 40,506 $ 6 $ 3,259 $ 37,253 Total investment securities 2 $ 1,582,430 $ 395 $ 103,156 $ 1,479,669 (In thousands) Amortized Cost Total Total Fair Value 1 As of December 31, 2021 Current: Debt securities: U.S. treasury notes $ 308,058 $ 250 $ 1,113 $ 307,195 Corporate debt securities 355,102 30 3,289 351,843 Municipal bonds 31,273 44 149 31,168 Asset-backed securities 120,774 24 587 120,211 Mortgage-backed securities 139,590 11 1,341 138,260 Total $ 954,797 $ 359 $ 6,479 $ 948,677 Non-current: Debt securities: Municipal bonds $ 3,107 $ 1 $ — $ 3,108 Asset-backed securities 167 1 — 168 Mortgage-backed securities 121 2 — 123 Mutual fund 27,999 — 748 27,251 Pooled investment fund 9,000 — — 9,000 Total $ 40,394 $ 4 $ 748 $ 39,650 Total investment securities 2 $ 995,191 $ 363 $ 7,227 $ 988,327 1 The Company’s methods for measuring the fair value of its investment securities are discussed in Note 13, Fair Value. 2 Excludes $10.8 million and $11.3 million in equity securities as of June 30, 2022 and December 31, 2021, respectively, included in prepaid expenses and other current assets and other assets on the condensed consolidated balance sheets. The following table presents estimated fair value and gross unrealized losses of debt securities in an unrealized loss position for which an allowance for credit losses has not been recorded, aggregated by security category. There are no expected credit losses that have been recorded against our investment securities as of June 30, 2022 and December 31, 2021. Balance at June 30, 2022 Balance at December 31, 2021 (In thousands) Fair Value Gross Unrealized Losses 1 Fair Value Gross Unrealized Losses 1 Investment-grade rated debt securities: U.S. treasury notes $ 377,537 $ 28,103 $ 268,839 $ 1,113 Corporate debt securities $ 483,681 $ 41,282 $ 336,777 $ 3,289 Municipal bonds $ 42,525 $ 4,878 $ 24,049 $ 149 Asset-backed securities $ 167,130 $ 7,230 $ 101,983 $ 587 Mortgage-backed securities $ 313,916 $ 18,764 $ 132,737 $ 1,341 1 All investments above have been in a continuous unrealized loss position for less than 12 months. The above table includes 337 securities at June 30, 2022, where the current fair value is less than the related amortized cost. Unrealized losses on the Company’s debt securities included in the above table are not considered to be credit-related based upon an analysis that considered the extent to which the fair value is less than the amortized basis of a security, adverse conditions specifically related to the security, changes to credit rating of the instrument subsequent to Company purchase, and the strength of the underlying collateral, if any. Additionally, the Company does not intend to sell the securities and it is not more likely than not that the Company will be required to sell the securities before recovery of their amortized cost bases. The following table summarizes the contractual maturity dates of the Company’s debt securities. June 30, 2022 (In thousands) Amortized Cost Fair Value Due after 1 year through year 5 486,447 456,472 Due after 5 years through year 10 581,390 534,290 Due after 10 years 477,433 454,646 Total $ 1,545,270 $ 1,445,408 Changes in the fair value of the Company’s equity securities are recognized within net unrealized gain (loss) on financial instruments on the condensed consolidated statements of operations for the three and six months ended June 30, 2022 and 2021. During the three and six months ended June 30, 2022, unrealized losses recognized on equity securities still held as of June 30, 2022 approximated $0.9 million and $2.2 million, respectively. During the three and six months ended June 30, 2021, unrealized gains and losses related to equity securities still held as of June 30, 2021 were immaterial.

Fair Value

Fair Value	6 Months Ended
	Jun. 30, 2022
Fair Value Disclosures [Abstract]
Fair Value	13. Fair Value Certain of the Company’s financial assets and liabilities are recorded 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. Assets and Liabilities Measured at Fair Value on a Recurring Basis The following table presents the Company’s financial instruments that are measured at fair value on a recurring basis: (In thousands) Fair Value Hierarchy June 30, 2022 December 31, 2021 Assets: Money market mutual funds 1 1 $ 28,901 $ 3,670 Investment securities, current: Debt securities: U.S. treasury notes 2 $ 377,537 $ 307,195 Corporate debt securities 2 486,590 351,843 Municipal bonds 2 48,528 31,168 Asset-backed securities 2 201,570 120,211 Mortgage-backed securities 2 328,191 138,260 Total $ 1,442,416 $ 948,677 Investment securities, non-current: Debt securities: Municipal bonds 2 $ 2,721 $ 3,108 Asset-backed securities 2 150 168 Mortgage-backed securities 2 121 123 Fixed-income mutual fund 1 25,261 27,251 Pooled investment fund measured at NAV 2 9,000 9,000 Total $ 37,253 $ 39,650 Executive deferred compensation plan trust 3 1 $ 10,827 $ 11,303 Interest rate swaps 4 2 $ 63,920 $ 15,031 Liabilities Interest rate swaps 4 2 $ — $ 19,982 Contingent consideration 5 3 $ 172,100 $ 67,300 1 The fair value is recorded in cash and cash equivalents. 2 The fair value of this security is measured at NAV as a practical expedient and has not been classified within the fair value hierarchy. The amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the condensed consolidated balance sheets. 3 The fair value is recorded as current or long-term based on the timing of the Company’s executive deferred compensation plan payment obligations. At June 30, 2022, $1.6 million and $9.2 million in fair value is recorded within prepaid expenses and other current assets and other assets, respectively. At December 31, 2021, $1.6 million an d $9.7 million in fair value is recorded within prepaid expenses and other current assets and other assets, respectively. 4 The fair value is recorded as current or long-term depending on the timing of expected discounted cash flows. At June 30, 2022, $27.0 million and $37.0 million in fair value is recorded in prepaid expenses and other current assets and other assets, respectively. At December 31, 2021, $0.1 million and $14.9 million in fair value is recorded within prepaid expenses and other current assets and other assets, respectively. At December 31, 2021, $17.6 million and $2.4 million in fair value is recorded within other current liabilities and other liabilities, respectively. 5 The fair value is recorded as current or long-term based on the timing of expected payments. At June 30, 2022, $14.9 million and $157.2 million in fair value is recorded within other current liabilities and other liabilities, respectively. At December 31, 2021, $67.3 million in fair value is recorded in other liabilities. Money Market Mutual Funds A portion of the Company’s cash and cash equivalents are invested in money market mutual funds that primarily consist of short-term government securities, which are classified as Level 1 in the fair value hierarchy because they are valued using quoted market prices for identical instruments in an active market. Debt Securities The Company determines the fair value of U.S. treasury notes using quoted market prices for similar or identical instruments in a market that is not active. For corporate debt securities, municipal bonds, and asset-backed and mortgage-backed securities, 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. Pooled Investment Fund (In thousands) Fair Value Unfunded Commitments Redemption Frequency Redemption Notice Period Pooled investment fund, as of June 30, 2022 $ 9,000 — Monthly 30 days The pooled investment fund is a Community Reinvestment Act-eligible investment fund, which seeks to provide bank investors with current income consistent with the returns available in adjustable-rate government guaranteed financial products by investing in Community Development loans guaranteed by the Small Business Administration. The fund maintains individual capital accounts for each investor, which reflect each individual investor’s share of the NAV of the fund. Fixed Income Mutual Fund The Company determines the fair value of its fixed income mutual fund investment using quoted market prices for identical instruments in an active market; such inputs are classified as Level 1 of the fair value hierarchy. Executive Deferred Compensation Plan Trust The investments held in the executive deferred compensation plan trust, which consist primarily of mutual funds, are classified as Level 1 in the fair value hierarchy because the fair value is determined using quoted market 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. Contingent Consideration As part of the asset acquisition from Bell Bank during 2021, the Company is obligated to pay additional consideration to Bell Bank contingent upon increases in the Federal Funds rate. The Company determined the fair value of this contingent consideration derivative liability based on discounted cash flows using the difference between the baseline Federal Funds rate in the purchase agreement with Bell Bank and future forecasted Federal Funds rates over the agreement term. The forecasted Federal Funds rates represent a Level 3 input within the fair value hierarchy. The resulting probability-weighted contingent consideration amounts were discounted using a discount rate, which was 3.27 percent as of June 30, 2022 and 1.45 percent as of December 31, 2021. Significant increases or decreases in the Federal Funds rates could result in material increases or decreases, respectively, to the fair value of the Company’s contingent consideration derivative liability. The Company records changes in the estimated fair value of the contingent consideration in the condensed consolidated statements of operations. Changes in the contingent consideration derivative liability are measured at fair value on a recurring basis using unobservable inputs (Level 3) and during the six months ended June 30, 2022 are as follows: (In thousands) Fair Value Contingent consideration – December 31, 2021 $ 67,300 Change in estimated fair value 104,800 Contingent consideration – June 30, 2022 $ 172,100 Assets and Liabilities Measured at Carrying Value, for which Fair Value is Disclosed Term Loans and Borrowings on Revolving Credit Facility The Company determines the fair value of borrowings on the Revolving Credit Facility and Tranche A Term Loans and Tranche B Term Loans based on market rates for the issuance of the Company’s debt, which are Level 2 inputs in the fair value hierarchy. As of June 30, 2022, the approximate fair value of outstanding borrowings on the Tranche A Term Loans and Tranche B Term Loans was $892.1 million and $1,370.6 million, respectively. As of December 31, 2021, the carrying value of outstanding borrowings on the Tranche A Term Loans and Tranche B Term Loans approximated fair value. As of June 30, 2022, the approximate fair value of the outstanding borrowings on the Revolving Credit Facility was $173.0 million while at December 31, 2021, the principal amount of the outstanding borrowings on the Revolving Credit Facility approximated fair value. See Note 10, Financing and Other Debt, for the carrying value of these liabilities as of June 30, 2022 and December 31, 2021. Convertible Notes The Company determines the fair value of the Convertible Notes outstanding using our stock price and volatility, the conversion premium on the Convertible Notes and effective interest rates for similarly-rated credit issuances, all of which are Level 2 inputs in the fair value hierarchy. As of June 30, 2022 and December 31, 2021, the fair value of our Convertible Notes approximated $314.7 million and $327.7 million, respectively. See Note 10, Financing and Other Debt, for the carrying value of this liability as of June 30, 2022 and December 31, 2021. Contractual Deposits The Company determines the fair value of its contractual deposits with maturities in excess of one year using current market interest rates for deposits of similar remaining maturities, which are Level 2 inputs in the fair value hierarchy. As of June 30, 2022, the fair value of such deposits approximated $554.1 million while at December 31, 2021, the carrying value of such deposits approximated fair value. See Note 9, Deposits, for the carrying value of these liabilities as of June 30, 2022 and December 31, 2021. Other Assets and Liabilities

Redeemable Non-Controlling Inte

Redeemable Non-Controlling Interest	6 Months Ended
	Jun. 30, 2022
Noncontrolling Interest [Abstract]
Redeemable Non-Controlling Interest	14. Redeemable Non-Controlling Interest On March 5, 2019, the Company acquired Discovery Benefits, an employee benefits administrator. The seller of Discovery Benefits, SBI, obtained a 4.9 percent equity interest in PO Holding, the then newly formed parent company of WEX Health and Discovery Benefits. As part of WEX Inc.’s purchase of the HSA contractual rights from Bell Bank on April 1, 2021, as more fully described in Note 4, Acquisitions, SBI’s ownership percentage was reduced to 4.53 percent. The original agreement provided SBI with a put right and the Company with a call right for the equity interest, which could be exercised no earlier than seven years following the date of acquisition. Upon exercise of the put or call right, the purchase price was to be calculated based on a revenue multiple of peer companies (as described in the operating agreement for PO Holding) applied to trailing twelve month revenues of the U.S. Health business. The put option made the non-controlling interest redeemable and, therefore, the non-controlling interest was classified as temporary equity outside of stockholders’ equity. Any resulting change in the value of the redeemable non-controlling interest was offset against retained earnings and impacted earnings per share. On March 7, 2022, in complete satisfaction of any rights under the PO Holding operating agreement, WEX Inc. and SBI entered into the Share Purchase Agreement whereby SBI sold, and WEX Inc. purchased, SBI’s remaining 4.53 percent interest in PO Holding. The purchase price for the shares in PO Holding was $234.0 million plus any interest accruing pursuant to the terms of the Share Purchase Agreement. The initial liability associated with the future payment of the purchase price was recorded at a net present value of $216.6 million, as more fully described in Note 4, Acquisitions. The carrying value of the redeemable non-controlling interest immediately prior to the acquisition date was $254.4 million. The $37.8 million excess carrying value as of the acquisition date was recorded within the change in value of redeemable non-controlling interest on the condensed consolidated statements of operations. This change in value of redeemable non-controlling interest was offset by $3.5 million of deferred tax expense resulting from the difference between the book and tax bases of the deferred liability payable to SBI. As a result of the acquisition, the carrying value of the redeemable non-controlling interest was reduced to zero and WEX Inc. owns 100 percent of PO Holding. The following table presents the changes in the Company’s redeemable non-controlling interest: (In thousands) 2022 2021 Balance at January 1 $ 254,106 $ 117,219 Net income attributable to redeemable non-controlling interest 268 353 Change in value of redeemable non-controlling interest (37,780) 25,044 Repurchase of non-controlling interest (216,594) — Balance at March 31 $ — $ 142,616 Net income attributable to redeemable non-controlling interest — 232 Repurchase of non-controlling interest — (11,191) Contribution from non-controlling interest — 12,457 Change in value of redeemable non-controlling interest — 43,823 Balance at June 30 $ — $ 187,937

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2022
Income Tax Disclosure [Abstract]
Income Taxes	15. Income Taxes The Company’s effective tax rate was 29.8 percent and 31.5 percent for the three and six months ended June 30, 2022, respectively, and (7.9) percent and (7.8) percent for the three and six months ended June 30, 2021, respectively. Income tax expense is based on an estimated annual effective rate, which requires the Company to make its best estimate of annual pretax income or loss. The Company’s effective tax rate for the three months ended June 30, 2022 was adversely impacted by reduced tax benefits arising from stock-based compensation. The Company’s effective tax rate for the six months ended June 30, 2022 was adversely impacted by a discrete tax item of $7.5 million incurred during the first quarter of 2022, primarily associated with an uncertain tax position, in addition to the reduced tax benefits arising from stock-based compensation previously mentioned. Effective tax rates were significantly lower for the same periods in the prior year primarily due to significant excess tax benefits arising from stock-based compensation in the prior year.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	16. Commitments and Contingencies Restructuring Activities In connection with the acquisition of eNett and Optal, during the first quarter of 2021, the Company initiated a restructuring program within the Travel and Corporate Solutions segment. The restructuring initiative consisted of employee separation costs, which the Company determined were probable and reasonably estimable. As such, the Company recorded charges incurred under this initiative of $5.4 million during the six months ended June 30, 2021, within general and administrative expenses on the condensed consolidated statements of operations. There were no accrued charges related to this initiative as of December 31, 2021 and no further charges were incurred during the six months ended June 30, 2022. Litigation and Regulatory Matters 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. Commitments Minimum Volume Commitments During June 2022, the Company and its European fuel suppliers amended existing contracts, modifying both prior period and future minimum volume commitments through 2025. As a result of these amendments, the Company reversed previously accrued penalties totaling approximately $7 million as other revenue within the condensed consolidated statement of operations during the three and six months ended June 30, 2022. Other Commitments During June 2022, the Company entered into a definitive agreement to purchase a portfolio of certain assets, consisting primarily of card program receivables. The outstanding receivables balances to be converted will fluctuate, but based on the most recent available information, we expect to purchase this portfolio of assets for approximately $48 million, subject to customary adjustments as defined in the purchase agreement. Closing of this transaction is contingent upon satisfaction of certain conditions and is expected to occur during the third quarter of 2022, be funded with cash on hand and accounted for as an asset acquisition. Other significant commitments and contingencies as of June 30, 2022 are consistent with those discussed in Note 20, Commitments and Contingencies, to the consolidated financial statements in the Annual Report on Form 10–K for the year ended December 31, 2021.

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2022
Share-Based Payment Arrangement [Abstract]
Stock-Based Compensation	17. Stock–Based Compensation The Company regularly grants equity awards in the form of stock options, restricted stock, restricted stock units and other stock-based awards under its stockholder-approved Amended and Restated 2019 Equity and Incentive Plan to certain employees and directors. Stock-based compensation expense was $24.9 million and $48.6 million for the three and six months ended June 30, 2022, respectively, and $20.6 million and $38.5 million for the three and six months ended June 30, 2021, respectively.

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2022
Segment Reporting [Abstract]
Segment Information	18. Segment Information The Company determines its operating segments and reports segment information in accordance with how the Company’s 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 payment processing, transaction processing, and information management services specifically designed for the needs of fleets of all sizes from small businesses to federal and state government fleets and over-the-road carriers. • Travel and Corporate Solutions focuses on the complex payment environment of global B2B payments, enabling customers to utilize our payments solutions to integrate into their own workflows and manage their accounts payable automation and spend management functions. • Health and Employee Benefit Solutions provides a SaaS platform for consumer directed healthcare benefits and a full-service benefit enrollment solution, bringing together benefits administration, certain compliance services and consumer-directed and benefits accounts. Additionally, the Company serves as the non-bank custodian to certain HSA assets. The following tables present the Company’s reportable segment revenues: Three Months Ended June 30, 2022 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Total Payment processing revenue $ 202,359 $ 88,608 $ 21,338 $ 312,305 Account servicing revenue 43,860 10,400 83,378 137,638 Finance fee revenue 85,067 216 27 85,310 Other revenue 47,937 1,186 13,861 62,984 Total revenues $ 379,223 $ 100,410 $ 118,604 $ 598,237 Three Months Ended June 30, 2021 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Payment processing revenue $ 126,450 $ 68,282 $ 18,694 $ 213,426 Account servicing revenue 42,293 11,222 79,482 132,997 Finance fee revenue 59,258 199 42 59,499 Other revenue 46,387 2,059 5,115 53,561 Total revenues $ 274,388 $ 81,762 $ 103,333 $ 459,483 Six Months Ended June 30, 2022 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Total Payment processing revenue $ 354,265 $ 153,683 $ 43,835 $ 551,783 Account servicing revenue 86,303 21,158 170,118 277,579 Finance fee revenue 163,472 357 63 163,892 Other revenue 94,322 2,463 25,733 122,518 Total revenues $ 698,362 $ 177,661 $ 239,749 $ 1,115,772 Six Months Ended June 30, 2021 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Payment processing revenue $ 237,026 $ 125,530 $ 39,259 $ 401,815 Account servicing revenue 82,284 21,909 147,427 251,620 Finance fee revenue 111,098 493 61 111,652 Other revenue 87,817 4,472 12,864 105,153 Total revenues $ 518,225 $ 152,404 $ 199,611 $ 870,240 The CODM evaluates the financial performance of each segment using segment adjusted operating income, which excludes: (i) unallocated corporate expenses; (ii) acquisition-related intangible amortization; (iii) other acquisition and divestiture related items; (iv) debt restructuring costs; (v) stock-based compensation; and (vi) other costs. Additionally, we do not allocate financing interest expense, foreign currency gains and losses, change in fair value of contingent consideration and unrealized gains and losses on financial instruments to our operating segments. The following table reconciles total segment adjusted operating income to income before income taxes: Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2022 2021 2022 2021 Segment adjusted operating income Fleet Solutions $ 192,969 $ 137,865 $ 353,070 $ 256,123 Travel and Corporate Solutions 51,016 17,157 79,346 24,172 Health and Employee Benefit Solutions 28,307 29,080 63,807 59,624 Total segment adjusted operating income $ 272,292 $ 184,102 $ 496,223 $ 339,919 Reconciliation: Total segment adjusted operating income $ 272,292 $ 184,102 $ 496,223 $ 339,919 Less: Unallocated corporate expenses 18,986 17,174 39,997 33,383 Acquisition-related intangible amortization 42,538 45,294 85,257 87,748 Other acquisition and divestiture related items 6,461 10,690 11,001 25,486 Debt restructuring costs (17) 5,299 (29) 5,936 Stock-based compensation 25,267 21,662 50,487 40,605 Other costs 7,926 1,705 16,105 13,942 Operating income 171,131 82,278 293,405 132,819 Financing interest expense (31,820) (32,473) (61,509) (65,757) Net foreign currency gain (loss) (19,408) 1,342 (14,402) (1,413) Change in fair value of contingent consideration (88,200) (47,700) (104,800) (47,700) Net unrealized gain on financial instruments 16,894 6,013 66,721 13,046 Income before income taxes $ 48,597 $ 9,460 $ 179,415 $ 30,995

Supplementary Regulatory Capita

Supplementary Regulatory Capital Disclosure	6 Months Ended
	Jun. 30, 2022
Debt Disclosure [Abstract]
Supplementary Regulatory Capital Disclosure	19. Supplementary Regulatory Capital Disclosure The Company’s subsidiary, WEX Bank, is subject to various regulatory capital requirements administered by the FDIC and the UDFI. 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 business activities and have a material effect on the Company's 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 June 30, 2022, 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: (In thousands) Actual Amount Ratio Minimum for Capital Adequacy Purposes Amount Ratio Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio June 30, 2022 Total Capital to risk-weighted assets $ 588,167 12.04 % $ 390,889 8.00 % $ 488,611 10.00 % Tier 1 Capital to average assets $ 542,839 9.83 % $ 220,839 4.00 % $ 276,048 5.00 % Common equity to risk-weighted assets $ 542,839 11.11 % $ 219,875 4.50 % $ 317,597 6.50 % Tier 1 Capital to risk-weighted assets $ 542,839 11.11 % $ 293,167 6.00 % $ 390,889 8.00 % December 31, 2021 Total Capital to risk-weighted assets $ 402,406 12.63 % $ 254,984 8.00 % $ 318,731 10.00 % Tier 1 Capital to average assets $ 366,121 8.75 % $ 167,317 4.00 % $ 209,147 5.00 % Common equity to risk-weighted assets $ 366,121 11.49 % $ 143,429 4.50 % $ 207,175 6.50 % Tier 1 Capital to risk-weighted assets $ 366,121 11.49 % $ 191,238 6.00 % $ 254,984 8.00 %

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	The accompanying condensed consolidated financial statements have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10–Q and Rule 10–01 of Regulation S–X. Accordingly, they exclude certain disclosures required by GAAP for a complete set of financial statements. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements that are included in the Company’s Annual Report on Form 10–K for the year ended December 31, 2021, filed with the SEC on March 1, 2022. In the opinion of management, all adjustments considered necessary for a fair presentation in accordance with GAAP, which are of a normal recurring nature, have been included. Operating results for the three and six months ended June 30, 2022 are not necessarily indicative of the results for any future periods or the year ending December 31, 2022.We have applied the same accounting policies in preparing these quarterly financial statements as we did in preparing our 2021 annual financial statements. The Company rounds amounts in the condensed consolidated financial statements to thousands and calculates all per-share data from underlying whole-dollar amounts. Thus, certain amounts may not foot, crossfoot or recalculate based on reported numbers due to rounding.
New Accounting Standards	Standard Description Date of Adoption Method of adoptions and effect on financial statements or other significant matters Adopted During the Six Months Ended June 30, 2022 ASU 2021-08, Business Combinations This standard requires acquirers within the scope of Subtopic 805-10, Business Combinations to recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with Topic 606. This will generally result in an acquirer recognizing and measuring acquired contract assets and liabilities consistent with how they were recognized and measured in an acquiree’s financial statements if such financial statements were prepared in accordance with GAAP. Previously, contract assets and contract liabilities acquired were recognized at their fair value on the acquisition date. Effective for fiscal years beginning after December 15, 2022. The Company early adopted this ASU effective January 1, 2022. Adoption had no material effect on the Company’s condensed consolidated financial statements for the three and six months ended June 30, 2022. The guidelines of this ASU will be applied prospectively for business combinations in the scope of ASC 805. Not Adopted as of June 30, 2022 ASU 2020–04, Reference Rate Reform and ASU 2021–01, Reference Rate Reform: Scope These standards provide optional guidance for a limited period of time to ease the potential financial reporting burden in accounting for (or recognizing the effects of) the discontinuation of LIBOR resulting from reference rate reform. The amendments provide optional expedients and exceptions for applying GAAP to contracts and other transactions impacted by reference rate reform. If certain criteria are met, an entity will not be required to remeasure or reassess contracts impacted by reference rate reform. Election is optional and available through December 31, 2022. The Company is currently evaluating the implications of these amendments to its current efforts for reference rate reform implementation and any impact the adoption of these ASUs would have on its financial condition and results of operations. While the Company has not yet determined if and when it will adopt these standards, the adoption of such standards is not expected to have a material effect on the Company’s condensed consolidated financial statements.
Revenues	In accordance with Topic 606, revenue is recognized when, or as, performance obligations are satisfied as defined by the terms of the contract, in an amount that reflects the consideration to which the Company expects to be entitled in exchange for goods or services provided.
Earnings per Share	Basic earnings per share is computed by dividing net income (loss) attributable to shareholders by the weighted average number of shares of common stock and vested 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 numerator is increased for tax effected interest expense associated with our Convertible Notes and the denominator is increased for the assumed issuance of common shares upon conversion of the Convertible Notes under the “if-converted” method, unless the effect is anti-dilutive. Additionally, diluted earnings per share includes the assumed exercise of dilutive options, the assumed issuance of unvested restricted stock units, performance-based awards for which the performance condition has been met as of the date of determination and contingently issuable shares that would be issuable if the end of the reporting period was the end of the contingency period, 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.
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
Fair Value of Financial Instruments	Certain of the Company’s financial assets and liabilities are recorded 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. Money Market Mutual Funds A portion of the Company’s cash and cash equivalents are invested in money market mutual funds that primarily consist of short-term government securities, which are classified as Level 1 in the fair value hierarchy because they are valued using quoted market prices for identical instruments in an active market. Debt Securities The Company determines the fair value of U.S. treasury notes using quoted market prices for similar or identical instruments in a market that is not active. For corporate debt securities, municipal bonds, and asset-backed and mortgage-backed securities, 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. The pooled investment fund is a Community Reinvestment Act-eligible investment fund, which seeks to provide bank investors with current income consistent with the returns available in adjustable-rate government guaranteed financial products by investing in Community Development loans guaranteed by the Small Business Administration. The fund maintains individual capital accounts for each investor, which reflect each individual investor’s share of the NAV of the fund. Fixed Income Mutual Fund The Company determines the fair value of its fixed income mutual fund investment using quoted market prices for identical instruments in an active market; such inputs are classified as Level 1 of the fair value hierarchy. Executive Deferred Compensation Plan Trust The investments held in the executive deferred compensation plan trust, which consist primarily of mutual funds, are classified as Level 1 in the fair value hierarchy because the fair value is determined using quoted market 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.
Segment Information	The Company determines its operating segments and reports segment information in accordance with how the Company’s 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 payment processing, transaction processing, and information management services specifically designed for the needs of fleets of all sizes from small businesses to federal and state government fleets and over-the-road carriers. • Travel and Corporate Solutions focuses on the complex payment environment of global B2B payments, enabling customers to utilize our payments solutions to integrate into their own workflows and manage their accounts payable automation and spend management functions. • Health and Employee Benefit Solutions provides a SaaS platform for consumer directed healthcare benefits and a full-service benefit enrollment solution, bringing together benefits administration, certain compliance services and consumer-directed and benefits accounts. Additionally, the Company serves as the non-bank custodian to certain HSA assets.

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements (Tables)	6 Months Ended
	Jun. 30, 2022
Accounting Changes and Error Corrections [Abstract]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles	The following table provides a brief description of (i) recent accounting pronouncements adopted during the six months ended June 30, 2022 and (ii) those not yet adopted, that could have a material effect on our financial statements. Standard Description Date of Adoption Method of adoptions and effect on financial statements or other significant matters Adopted During the Six Months Ended June 30, 2022 ASU 2021-08, Business Combinations This standard requires acquirers within the scope of Subtopic 805-10, Business Combinations to recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with Topic 606. This will generally result in an acquirer recognizing and measuring acquired contract assets and liabilities consistent with how they were recognized and measured in an acquiree’s financial statements if such financial statements were prepared in accordance with GAAP. Previously, contract assets and contract liabilities acquired were recognized at their fair value on the acquisition date. Effective for fiscal years beginning after December 15, 2022. The Company early adopted this ASU effective January 1, 2022. Adoption had no material effect on the Company’s condensed consolidated financial statements for the three and six months ended June 30, 2022. The guidelines of this ASU will be applied prospectively for business combinations in the scope of ASC 805. Not Adopted as of June 30, 2022 ASU 2020–04, Reference Rate Reform and ASU 2021–01, Reference Rate Reform: Scope These standards provide optional guidance for a limited period of time to ease the potential financial reporting burden in accounting for (or recognizing the effects of) the discontinuation of LIBOR resulting from reference rate reform. The amendments provide optional expedients and exceptions for applying GAAP to contracts and other transactions impacted by reference rate reform. If certain criteria are met, an entity will not be required to remeasure or reassess contracts impacted by reference rate reform. Election is optional and available through December 31, 2022. The Company is currently evaluating the implications of these amendments to its current efforts for reference rate reform implementation and any impact the adoption of these ASUs would have on its financial condition and results of operations. While the Company has not yet determined if and when it will adopt these standards, the adoption of such standards is not expected to have a material effect on the Company’s condensed consolidated financial statements.

Revenues (Tables)

Revenues (Tables)	6 Months Ended
	Jun. 30, 2022
Revenue from Contract with Customer [Abstract]
Schedule of Disaggregation of Revenue	The following tables disaggregate the Company’s consolidated revenues, substantially all of which relate to services transferred to the customer over time: Three Months Ended June 30, 2022 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Topic 606 revenues Payment processing revenue $ 202,359 $ 88,608 $ 21,338 $ 312,305 Account servicing revenue 4,557 10,400 83,378 98,335 Other revenue 22,249 82 8,366 30,697 Total Topic 606 revenues $ 229,165 $ 99,090 $ 113,082 $ 441,337 Non-Topic 606 revenues 150,058 1,320 5,522 156,900 Total revenues $ 379,223 $ 100,410 $ 118,604 $ 598,237 Three Months Ended June 30, 2021 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Topic 606 revenues Payment processing revenue $ 126,450 $ 68,282 $ 18,694 $ 213,426 Account servicing revenue 4,336 11,222 79,482 95,040 Other revenue 22,422 1,656 5,109 29,187 Total Topic 606 revenues $ 153,208 $ 81,160 $ 103,285 $ 337,653 Non-Topic 606 revenues 121,180 602 48 121,830 Total revenues $ 274,388 $ 81,762 $ 103,333 $ 459,483 Six Months Ended June 30, 2022 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Topic 606 revenues Payment processing revenue $ 354,265 $ 153,683 $ 43,835 $ 551,783 Account servicing revenue 8,902 21,158 170,118 200,178 Other revenue 42,174 395 16,429 58,998 Total Topic 606 revenues $ 405,341 $ 175,236 $ 230,382 $ 810,959 Non-Topic 606 revenues 293,021 2,425 9,367 304,813 Total revenues $ 698,362 $ 177,661 $ 239,749 $ 1,115,772 Six Months Ended June 30, 2021 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Topic 606 revenues Payment processing revenue $ 237,026 $ 125,530 $ 39,259 $ 401,815 Account servicing revenue 8,705 21,909 147,427 $ 178,041 Other revenue 42,668 3,456 12,854 58,978 Total Topic 606 revenues $ 288,399 $ 150,895 $ 199,540 $ 638,834 Non-Topic 606 revenues 229,826 1,509 71 231,406 Total revenues $ 518,225 $ 152,404 $ 199,611 $ 870,240
Schedule of Contract Assets and Liabilities	The following table provides information about these contract balances: (In thousands) Contract balance Location on the condensed consolidated balance sheets June 30, 2022 December 31, 2021 Receivables Accounts receivable, net $ 45,856 $ 49,303 Contract assets Prepaid expenses and other current assets 15,242 8,975 Contract assets Other assets 36,603 40,718 Contract liabilities Other current liabilities 8,112 9,123 Contract liabilities Other liabilities 66,015 58,900
Schedule of Remaining Performance Obligations	The following table includes revenue expected to be recognized related to remaining performance obligations at the end of the reporting period. (In thousands) Remaining 2022 2023 2024 2025 2026 2027 Thereafter Total Minimum monthly fees 1 $ 34,454 $ 38,888 $ 22,938 $ 9,852 $ 4,161 $ 3,065 $ 1,500 $ 114,858 Professional services 2 1,675 104 3 3 — — — 1,785 Other 3 2,033 8,541 13,675 18,886 22,709 26,838 5,929 98,611 Total remaining performance obligations $ 38,162 $ 47,533 $ 36,616 $ 28,741 $ 26,870 $ 29,903 $ 7,429 $ 215,254 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. 3 Represents deferred revenue and contractual minimums associated with payment processing service obligations. Consideration associated with certain relationships is variable and the measurement and estimation of contract consideration is contingent upon payment processing volumes and maintaining volume shares, among others.

Acquisitions (Tables)

Acquisitions (Tables)	6 Months Ended
	Jun. 30, 2022
Business Combination and Asset Acquisition [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The following is a summary of the final allocation of the purchase price to the assets and liabilities acquired, based on the fair value at the date of acquisition: (In thousands) As of June 30, 2022 Cash consideration transferred, net of $15.0 million in cash and restricted cash acquired $ 259,061 Less: Accounts receivable 3,103 Customer relationships (1)(4) 84,400 Developed technologies (2)(4) 19,600 Non-compete (3)(4) 2,150 Other assets 4,387 Accrued expenses (3,498) Restricted cash payable (14,328) Other liabilities (5,177) Recorded goodwill $ 168,424 (1) Weighted average life - 9.3 years. (2) Weighted average life - 3.6 years. (3) Weighted average life - 2.5 years. (4) The weighted average life of the $106.2 million of amortizable intangible assets acquired in this business combination is 8.1 years.

Accounts Receivable, net of A_2

Accounts Receivable, net of Allowances (Tables)	6 Months Ended
	Jun. 30, 2022
Receivables [Abstract]
Schedule of Changes in Reserves for Credit Losses Related to Accounts Receivable	The following tables present changes in the accounts receivable allowances by portfolio segment: Three Months Ended June 30, 2022 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Balance, beginning of period $ 63,938 $ 11,636 $ 679 $ 76,253 Net provision for credit losses 1 42,446 (726) 466 42,186 Charges to other accounts 2 10,217 169 (31) 10,355 Charge-offs (29,500) (186) (127) (29,813) Recoveries of amounts previously charged-off 2,809 — — 2,809 Currency translation (686) (497) — (1,183) Balance, end of period $ 89,224 $ 10,396 $ 987 $ 100,607 Three Months Ended June 30, 2021 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Balance, beginning of period $ 46,181 $ 8,650 $ 312 $ 55,143 Provision for credit losses 1 11,764 1,117 81 12,962 Charges to other accounts 2 3,848 — — 3,848 Charge-offs (13,593) (2,328) (10) (15,931) Recoveries of amounts previously charged-off 1,365 7 153 1,525 Currency translation 151 73 — 224 Balance, end of period $ 49,716 $ 7,519 $ 536 $ 57,771 Six Months Ended June 30, 2022 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Balance, beginning of period $ 55,758 $ 9,931 $ 617 $ 66,306 Provision for credit losses 1 65,670 1,421 735 67,826 Charges to other accounts 2 18,617 169 (101) 18,685 Charge-offs (55,295) (447) (274) (56,016) Recoveries of amounts previously charged-off 5,230 — 10 5,240 Currency translation (756) (678) — (1,434) Balance, end of period $ 89,224 $ 10,396 $ 987 $ 100,607 Six Months Ended June 30, 2021 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Balance, beginning of period $ 49,267 $ 9,610 $ 270 $ 59,147 Provision for credit losses 1 16,128 1,752 141 18,021 Charges to other accounts 2 8,221 — — 8,221 Charge-offs (26,367) (3,860) (28) (30,255) Recoveries of amounts previously charged-off 2,881 13 153 3,047 Currency translation (414) 4 — (410) Balance, end of period $ 49,716 $ 7,519 $ 536 $ 57,771 1 The provision is comprised of estimated credit losses based on the Company’s loss-rate experience and includes adjustments required for forecasted credit loss information. The provision for credit losses reported within this table also includes the provision for fraud losses. 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 substantially represent the offset against the late fee revenue recognized when the Company establishes a reserve for such waived amounts.
Schedule of Past Due Financing Receivables	The following table presents the outstanding balance of trade accounts receivable that are less than 30 and 60 days past due, shown in each case as a percentage of total trade accounts receivable: Delinquency Status June 30, 2022 December 31, 2021 Less than 30 days past due 99 % 98 % Less than 60 days past due 99 % 99 %

Repurchases of Common Stock (Ta

Repurchases of Common Stock (Tables)	6 Months Ended
	Jun. 30, 2022
Equity [Abstract]
Class of Treasury Stock	The number of shares repurchased by the Company during 2022 pursuant to the Repurchase Program have been recorded as treasury stock and are included in the following table. There were no shares repurchased pursuant to the Repurchase Program during the six months ended June 30, 2021. (In thousands, except for per share amounts) Shares Total Cost Average Cost Per Share Treasury stock purchased during the three months ended June 30, 2022 520 $ 80,599 $ 155.06

Earnings per Share (Tables)

Earnings per Share (Tables)	6 Months Ended
	Jun. 30, 2022
Earnings Per Share [Abstract]
Schedule of Reconciliation of Net Income (Loss) and Share Data Used in Basic and Diluted Earnings Per Share Computations	The following table summarizes net income (loss) attributable to shareholders and reconciles basic and diluted shares outstanding used in the earnings per share computations: Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2022 2021 2022 2021 Net income (loss) attributable to shareholders $ 34,129 $ (33,856) $ 156,892 $ (36,421) Weighted average common shares outstanding – Basic 44,790 44,788 44,851 44,566 Dilutive impact of share-based compensation awards 1 287 — 360 — Weighted average common shares outstanding – Diluted 1, 2 45,077 44,788 45,211 44,566 1 For the three and six months ended June 30, 2022, 0.7 million and 0.6 million, respectively, of outstanding share-based compensation awards were excluded from the computation of diluted earnings per share under the treasury stock method, as the effect of including these awards would be anti-dilutive. For the three and six months ended June 30, 2021, 0.9 million and 1.0 million, respectively, of outstanding share-based compensation awards were excluded from the computation of diluted earnings per share under the treasury stock method, including share-based compensation awards that would otherwise have been dilutive but for the Company’s net loss position, as the effect of including these awards would be anti-dilutive.

Derivative Instruments (Tables)

Derivative Instruments (Tables)	6 Months Ended
	Jun. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Notional Amounts of Outstanding Derivative Positions	A summary of the Company’s interest rate swap contracts with a collective notional amount of $1.9 billion outstanding as of June 30, 2022 is as follows: Contract Inception Contract End Fixed Interest Rates 1 Notional Amount at inception ( in thousands ) December 2017 December 2022 2.204% $ 300,000 March 2020 March 2023 1.954% 150,000 March 2019 March 2023 1.956% 100,000 March 2019 March 2023 2.413% 200,000 March 2020 December 2023 1.862% 200,000 May 2021 May 2024 0.435% 150,000 May 2021 May 2024 0.440% 150,000 May 2021 May 2025 0.678% 300,000 May 2021 May 2026 0.909% 150,000 May 2021 May 2026 0.910% 150,000 1 Fixed interest rates payable by WEX. Counterparties pay floating rate equal to the one-month USD LIBOR.
Schedule of Location and Amounts of Derivative Gains and Losses in Condensed Consolidated Statements of Income	The following table presents information on the location and amounts of interest rate swap gains and losses: (In thousands) Three Months Ended June 30, Six Months Ended June 30, Derivatives Not Designated as Hedging Instruments Location of Gain (Loss) Recognized in the Condensed Consolidated Statement of Operations 2022 2021 2022 2021 Interest rate swap contracts – unrealized portion Net unrealized gain (loss) on financial instruments $ 17,775 $ 5,962 $ 68,871 $ 13,481 Interest rate swap contracts – realized portion Financing interest expense $ (3,031) $ (6,081) $ (8,912) $ (11,538)

Deposits (Tables)

Deposits (Tables)	6 Months Ended
	Jun. 30, 2022
Banking and Thrift, Interest [Abstract]
Schedule of Deposits	The following table presents the composition of deposits, which are classified as short-term or long-term based on their contractual maturities: (In thousands) June 30, 2022 December 31, 2021 Customer deposits $ 136,866 $ 129,180 Contractual deposits with maturities within 1 year 1,2 364,337 566,427 Interest-bearing money market deposits 1 314,017 370,813 HSA deposits 3 2,070,507 960,000 Short-term contractual deposits 2,885,727 2,026,420 Contractual deposits with maturities greater than 1 year and less than 5 years 1,2 588,932 652,214 Total deposits $ 3,474,659 $ 2,678,634 Weighted average cost of HSA deposits outstanding 0.04 % 0.03 % Weighted average cost of funds on contractual deposits outstanding 0.61 % 0.48 % Weighted average cost of interest-bearing money market deposits outstanding 1.71 % 0.20 % 1 As of June 30, 2022 and December 31, 2021, all certificates of deposit and money market deposits were in denominations of $250,000 or less, corresponding to FDIC deposit insurance limits. 2 Includes certificates of deposit and certain money market deposits, which have a fixed maturity and interest rate. 3 Deposits held associated with the HSA custodial assets. HSA deposits are recorded within short-term deposits on the condensed consolidated balance sheet as the funds can be withdrawn by the account holders on demand.

Financing and Other Debt (Table

Financing and Other Debt (Tables)	6 Months Ended
	Jun. 30, 2022
Debt Disclosure [Abstract]
Schedule of Outstanding Debt	The following table summarizes the Company’s total outstanding debt by type as of June 30, 2022 and December 31, 2021. (In thousands) June 30, 2022 December 31, 2021 Term loans: Tranche A Term Loans $ 917,281 $ 941,742 Tranche B Term Loans 1,423,975 1,431,185 Total term loans $ 2,341,256 $ 2,372,927 Borrowings on Revolving Credit Facility 180,400 119,800 Convertible Notes 310,000 310,000 Securitized debt 102,449 100,861 Participation debt 52,245 1,500 Total gross debt 1 $ 2,986,350 $ 2,905,088 1 See Note 13, Fair Value, for information regarding the fair value of the Company’s debt. The following table summarizes the Company’s total outstanding debt by balance sheet classification: (In thousands) June 30, 2022 December 31, 2021 Current portion of gross debt $ 185,791 $ 165,703 Less: Unamortized debt issuance costs/debt discount (9,957) (9,934) Short-term debt, net $ 175,834 $ 155,769 Long-term portion of gross debt $ 2,800,559 $ 2,739,385 Less: Unamortized debt issuance costs/debt discount (39,028) (44,020) Long-term debt, net $ 2,761,531 $ 2,695,365 Supplemental information: Letters of credit 1 $ 31,209 $ 51,392 Remaining borrowing capacity on Revolving Credit Facility 2 $ 718,391 $ 758,808 1 Credit support for lease agreements, virtual card and fuel payment processing activity at the Company’s foreign subsidiaries. 2 Contingent on maintaining compliance with the financial covenants as defined in the Company’s Amended and Restated Credit Agreement.
Schedule of Convertible Notes	The Convertible Notes consist of the following: (In thousands) June 30, 2022 December 31, 2021 Principal 1 $ 310,000 $ 310,000 Less: Unamortized discounts (11,867) (12,844) Less: Unamortized issuance cost (1,911) (2,068) Net carrying amount of Convertible Notes $ 296,222 $ 295,088 1 Recorded within long-term debt, net on the condensed consolidated balance sheets, offset by the long-term portion of unamortized discounts and issuance cost. The following table sets forth total interest expense recognized for the Convertible Notes: Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2022 2021 2022 2021 Interest on 6.5 percent coupon $ 5,038 $ 5,038 $ 10,075 $ 10,075 Amortization of debt discount and debt issuance costs 541 501 1,134 1,054 $ 5,579 $ 5,539 $ 11,209 $ 11,129

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Available-For-Sale Securities	The Company’s amortized cost and estimated fair value of investment securities as of June 30, 2022 and December 31, 2021 are presented below: (In thousands) Amortized Cost Total Total Fair Value 1 As of June 30, 2022 Current: Debt securities: U.S. treasury notes $ 405,640 — 28,103 377,537 Corporate debt securities 527,866 6 41,282 486,590 Municipal bonds 53,013 33 4,518 48,528 Asset-backed securities 208,634 166 7,230 201,570 Mortgage-backed securities 346,771 184 18,764 328,191 Total $ 1,541,924 $ 389 $ 99,897 $ 1,442,416 Non-current: Debt securities: Municipal bonds $ 3,081 $ — $ 360 $ 2,721 Asset-backed securities 149 1 — 150 Mortgage-backed securities 116 5 — 121 Mutual fund 28,160 — 2,899 25,261 Pooled investment fund 9,000 — — 9,000 Total $ 40,506 $ 6 $ 3,259 $ 37,253 Total investment securities 2 $ 1,582,430 $ 395 $ 103,156 $ 1,479,669 (In thousands) Amortized Cost Total Total Fair Value 1 As of December 31, 2021 Current: Debt securities: U.S. treasury notes $ 308,058 $ 250 $ 1,113 $ 307,195 Corporate debt securities 355,102 30 3,289 351,843 Municipal bonds 31,273 44 149 31,168 Asset-backed securities 120,774 24 587 120,211 Mortgage-backed securities 139,590 11 1,341 138,260 Total $ 954,797 $ 359 $ 6,479 $ 948,677 Non-current: Debt securities: Municipal bonds $ 3,107 $ 1 $ — $ 3,108 Asset-backed securities 167 1 — 168 Mortgage-backed securities 121 2 — 123 Mutual fund 27,999 — 748 27,251 Pooled investment fund 9,000 — — 9,000 Total $ 40,394 $ 4 $ 748 $ 39,650 Total investment securities 2 $ 995,191 $ 363 $ 7,227 $ 988,327 1 The Company’s methods for measuring the fair value of its investment securities are discussed in Note 13, Fair Value.
Schedule of Estimated Fair Value and Gross Unrealized Losses of Debt Securities in an Unrealized Loss Position	The following table presents estimated fair value and gross unrealized losses of debt securities in an unrealized loss position for which an allowance for credit losses has not been recorded, aggregated by security category. There are no expected credit losses that have been recorded against our investment securities as of June 30, 2022 and December 31, 2021. Balance at June 30, 2022 Balance at December 31, 2021 (In thousands) Fair Value Gross Unrealized Losses 1 Fair Value Gross Unrealized Losses 1 Investment-grade rated debt securities: U.S. treasury notes $ 377,537 $ 28,103 $ 268,839 $ 1,113 Corporate debt securities $ 483,681 $ 41,282 $ 336,777 $ 3,289 Municipal bonds $ 42,525 $ 4,878 $ 24,049 $ 149 Asset-backed securities $ 167,130 $ 7,230 $ 101,983 $ 587 Mortgage-backed securities $ 313,916 $ 18,764 $ 132,737 $ 1,341 1 All investments above have been in a continuous unrealized loss position for less than 12 months.
Maturity Dates Of Available-For-Sale Securities	The following table summarizes the contractual maturity dates of the Company’s debt securities. June 30, 2022 (In thousands) Amortized Cost Fair Value Due after 1 year through year 5 486,447 456,472 Due after 5 years through year 10 581,390 534,290 Due after 10 years 477,433 454,646 Total $ 1,545,270 $ 1,445,408

Fair Value (Tables)

Fair Value (Tables)	6 Months Ended
	Jun. 30, 2022
Fair Value Disclosures [Abstract]
Schedule of Assets and Liabilities Measured at Fair Value	The following table presents the Company’s financial instruments that are measured at fair value on a recurring basis: (In thousands) Fair Value Hierarchy June 30, 2022 December 31, 2021 Assets: Money market mutual funds 1 1 $ 28,901 $ 3,670 Investment securities, current: Debt securities: U.S. treasury notes 2 $ 377,537 $ 307,195 Corporate debt securities 2 486,590 351,843 Municipal bonds 2 48,528 31,168 Asset-backed securities 2 201,570 120,211 Mortgage-backed securities 2 328,191 138,260 Total $ 1,442,416 $ 948,677 Investment securities, non-current: Debt securities: Municipal bonds 2 $ 2,721 $ 3,108 Asset-backed securities 2 150 168 Mortgage-backed securities 2 121 123 Fixed-income mutual fund 1 25,261 27,251 Pooled investment fund measured at NAV 2 9,000 9,000 Total $ 37,253 $ 39,650 Executive deferred compensation plan trust 3 1 $ 10,827 $ 11,303 Interest rate swaps 4 2 $ 63,920 $ 15,031 Liabilities Interest rate swaps 4 2 $ — $ 19,982 Contingent consideration 5 3 $ 172,100 $ 67,300 1 The fair value is recorded in cash and cash equivalents. 2 The fair value of this security is measured at NAV as a practical expedient and has not been classified within the fair value hierarchy. The amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the condensed consolidated balance sheets. 3 The fair value is recorded as current or long-term based on the timing of the Company’s executive deferred compensation plan payment obligations. At June 30, 2022, $1.6 million and $9.2 million in fair value is recorded within prepaid expenses and other current assets and other assets, respectively. At December 31, 2021, $1.6 million an d $9.7 million in fair value is recorded within prepaid expenses and other current assets and other assets, respectively. 4 The fair value is recorded as current or long-term depending on the timing of expected discounted cash flows. At June 30, 2022, $27.0 million and $37.0 million in fair value is recorded in prepaid expenses and other current assets and other assets, respectively. At December 31, 2021, $0.1 million and $14.9 million in fair value is recorded within prepaid expenses and other current assets and other assets, respectively. At December 31, 2021, $17.6 million and $2.4 million in fair value is recorded within other current liabilities and other liabilities, respectively. 5 The fair value is recorded as current or long-term based on the timing of expected payments. At June 30, 2022, $14.9 million and $157.2 million in fair value is recorded within other current liabilities and other liabilities, respectively. At December 31, 2021, $67.3 million in fair value is recorded in other liabilities.
Schedule of Pooled Investment Fund	Pooled Investment Fund (In thousands) Fair Value Unfunded Commitments Redemption Frequency Redemption Notice Period Pooled investment fund, as of June 30, 2022 $ 9,000 — Monthly 30 days
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation	Changes in the contingent consideration derivative liability are measured at fair value on a recurring basis using unobservable inputs (Level 3) and during the six months ended June 30, 2022 are as follows: (In thousands) Fair Value Contingent consideration – December 31, 2021 $ 67,300 Change in estimated fair value 104,800 Contingent consideration – June 30, 2022 $ 172,100

Redeemable Non-Controlling In_2

Redeemable Non-Controlling Interest (Tables)	6 Months Ended
	Jun. 30, 2022
Noncontrolling Interest [Abstract]
Schedule of Redeemable Noncontrolling Interest	The following table presents the changes in the Company’s redeemable non-controlling interest: (In thousands) 2022 2021 Balance at January 1 $ 254,106 $ 117,219 Net income attributable to redeemable non-controlling interest 268 353 Change in value of redeemable non-controlling interest (37,780) 25,044 Repurchase of non-controlling interest (216,594) — Balance at March 31 $ — $ 142,616 Net income attributable to redeemable non-controlling interest — 232 Repurchase of non-controlling interest — (11,191) Contribution from non-controlling interest — 12,457 Change in value of redeemable non-controlling interest — 43,823 Balance at June 30 $ — $ 187,937

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2022
Segment Reporting [Abstract]
Schedule of Reportable Segment Results	The following tables present the Company’s reportable segment revenues: Three Months Ended June 30, 2022 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Total Payment processing revenue $ 202,359 $ 88,608 $ 21,338 $ 312,305 Account servicing revenue 43,860 10,400 83,378 137,638 Finance fee revenue 85,067 216 27 85,310 Other revenue 47,937 1,186 13,861 62,984 Total revenues $ 379,223 $ 100,410 $ 118,604 $ 598,237 Three Months Ended June 30, 2021 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Payment processing revenue $ 126,450 $ 68,282 $ 18,694 $ 213,426 Account servicing revenue 42,293 11,222 79,482 132,997 Finance fee revenue 59,258 199 42 59,499 Other revenue 46,387 2,059 5,115 53,561 Total revenues $ 274,388 $ 81,762 $ 103,333 $ 459,483 Six Months Ended June 30, 2022 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Total Payment processing revenue $ 354,265 $ 153,683 $ 43,835 $ 551,783 Account servicing revenue 86,303 21,158 170,118 277,579 Finance fee revenue 163,472 357 63 163,892 Other revenue 94,322 2,463 25,733 122,518 Total revenues $ 698,362 $ 177,661 $ 239,749 $ 1,115,772 Six Months Ended June 30, 2021 (In thousands) Fleet Solutions Travel and Corporate Solutions Health and Employee Benefit Solutions Total Payment processing revenue $ 237,026 $ 125,530 $ 39,259 $ 401,815 Account servicing revenue 82,284 21,909 147,427 251,620 Finance fee revenue 111,098 493 61 111,652 Other revenue 87,817 4,472 12,864 105,153 Total revenues $ 518,225 $ 152,404 $ 199,611 $ 870,240
Reconciliation Of Adjusted Net Income To Net Income Before Income Taxess	The following table reconciles total segment adjusted operating income to income before income taxes: Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2022 2021 2022 2021 Segment adjusted operating income Fleet Solutions $ 192,969 $ 137,865 $ 353,070 $ 256,123 Travel and Corporate Solutions 51,016 17,157 79,346 24,172 Health and Employee Benefit Solutions 28,307 29,080 63,807 59,624 Total segment adjusted operating income $ 272,292 $ 184,102 $ 496,223 $ 339,919 Reconciliation: Total segment adjusted operating income $ 272,292 $ 184,102 $ 496,223 $ 339,919 Less: Unallocated corporate expenses 18,986 17,174 39,997 33,383 Acquisition-related intangible amortization 42,538 45,294 85,257 87,748 Other acquisition and divestiture related items 6,461 10,690 11,001 25,486 Debt restructuring costs (17) 5,299 (29) 5,936 Stock-based compensation 25,267 21,662 50,487 40,605 Other costs 7,926 1,705 16,105 13,942 Operating income 171,131 82,278 293,405 132,819 Financing interest expense (31,820) (32,473) (61,509) (65,757) Net foreign currency gain (loss) (19,408) 1,342 (14,402) (1,413) Change in fair value of contingent consideration (88,200) (47,700) (104,800) (47,700) Net unrealized gain on financial instruments 16,894 6,013 66,721 13,046 Income before income taxes $ 48,597 $ 9,460 $ 179,415 $ 30,995

Supplementary Regulatory Capi_2

Supplementary Regulatory Capital Disclosure (Tables)	6 Months Ended
	Jun. 30, 2022
Debt Disclosure [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: (In thousands) Actual Amount Ratio Minimum for Capital Adequacy Purposes Amount Ratio Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio June 30, 2022 Total Capital to risk-weighted assets $ 588,167 12.04 % $ 390,889 8.00 % $ 488,611 10.00 % Tier 1 Capital to average assets $ 542,839 9.83 % $ 220,839 4.00 % $ 276,048 5.00 % Common equity to risk-weighted assets $ 542,839 11.11 % $ 219,875 4.50 % $ 317,597 6.50 % Tier 1 Capital to risk-weighted assets $ 542,839 11.11 % $ 293,167 6.00 % $ 390,889 8.00 % December 31, 2021 Total Capital to risk-weighted assets $ 402,406 12.63 % $ 254,984 8.00 % $ 318,731 10.00 % Tier 1 Capital to average assets $ 366,121 8.75 % $ 167,317 4.00 % $ 209,147 5.00 % Common equity to risk-weighted assets $ 366,121 11.49 % $ 143,429 4.50 % $ 207,175 6.50 % Tier 1 Capital to risk-weighted assets $ 366,121 11.49 % $ 191,238 6.00 % $ 254,984 8.00 %

Revenues - Summary of Disaggreg

Revenues - Summary of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Total Topic 606 revenues	$ 441,337	$ 337,653	$ 810,959	$ 638,834
Non-Topic 606 revenues	156,900	121,830	304,813	231,406
Total revenues	598,237	459,483	1,115,772	870,240
Fleet Solutions
Disaggregation of Revenue [Line Items]
Total Topic 606 revenues	229,165	153,208	405,341	288,399
Non-Topic 606 revenues	150,058	121,180	293,021	229,826
Total revenues	379,223	274,388	698,362	518,225
Travel and Corporate Solutions
Disaggregation of Revenue [Line Items]
Total Topic 606 revenues	99,090	81,160	175,236	150,895
Non-Topic 606 revenues	1,320	602	2,425	1,509
Total revenues	100,410	81,762	177,661	152,404
Health and Employee Benefit Solutions
Disaggregation of Revenue [Line Items]
Total Topic 606 revenues	113,082	103,285	230,382	199,540
Non-Topic 606 revenues	5,522	48	9,367	71
Total revenues	118,604	103,333	239,749	199,611
Payment processing revenue
Disaggregation of Revenue [Line Items]
Total Topic 606 revenues	312,305	213,426	551,783	401,815
Total revenues	312,305	213,426	551,783	401,815
Payment processing revenue | Fleet Solutions
Disaggregation of Revenue [Line Items]
Total Topic 606 revenues	202,359	126,450	354,265	237,026
Total revenues	202,359	126,450	354,265	237,026
Payment processing revenue | Travel and Corporate Solutions
Disaggregation of Revenue [Line Items]
Total Topic 606 revenues	88,608	68,282	153,683	125,530
Total revenues	88,608	68,282	153,683	125,530
Payment processing revenue | Health and Employee Benefit Solutions
Disaggregation of Revenue [Line Items]
Total Topic 606 revenues	21,338	18,694	43,835	39,259
Total revenues	21,338	18,694	43,835	39,259
Account servicing revenue
Disaggregation of Revenue [Line Items]
Total Topic 606 revenues	98,335	95,040	200,178	178,041
Total revenues	137,638	132,997	277,579	251,620
Account servicing revenue | Fleet Solutions
Disaggregation of Revenue [Line Items]
Total Topic 606 revenues	4,557	4,336	8,902	8,705
Total revenues	43,860	42,293	86,303	82,284
Account servicing revenue | Travel and Corporate Solutions
Disaggregation of Revenue [Line Items]
Total Topic 606 revenues	10,400	11,222	21,158	21,909
Total revenues	10,400	11,222	21,158	21,909
Account servicing revenue | Health and Employee Benefit Solutions
Disaggregation of Revenue [Line Items]
Total Topic 606 revenues	83,378	79,482	170,118	147,427
Total revenues	83,378	79,482	170,118	147,427
Other revenue
Disaggregation of Revenue [Line Items]
Total Topic 606 revenues	30,697	29,187	58,998	58,978
Total revenues	62,984	53,561	122,518	105,153
Other revenue | Fleet Solutions
Disaggregation of Revenue [Line Items]
Total Topic 606 revenues	22,249	22,422	42,174	42,668
Total revenues	47,937	46,387	94,322	87,817
Other revenue | Travel and Corporate Solutions
Disaggregation of Revenue [Line Items]
Total Topic 606 revenues	82	1,656	395	3,456
Total revenues	1,186	2,059	2,463	4,472
Other revenue | Health and Employee Benefit Solutions
Disaggregation of Revenue [Line Items]
Total Topic 606 revenues	8,366	5,109	16,429	12,854
Total revenues	$ 13,861	$ 5,115	$ 25,733	$ 12,864

Revenues - Contract Assets and

Revenues - Contract Assets and Liabilities From Contracts with Customers (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Contract liabilities	$ 2,885,727	$ 2,026,420
Contract liabilities	588,932	652,214
Accounts receivable, net
Disaggregation of Revenue [Line Items]
Contract assets	45,856	49,303
Prepaid expenses and other current assets
Disaggregation of Revenue [Line Items]
Contract assets	15,242	8,975
Other assets
Disaggregation of Revenue [Line Items]
Noncurrent other assets	36,603	40,718
Other current liabilities
Disaggregation of Revenue [Line Items]
Contract liabilities	8,112	9,123
Other liabilities
Disaggregation of Revenue [Line Items]
Contract liabilities	$ 66,015	$ 58,900

Revenues - Narrative (Details)

Revenues - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022
Revenue from Contract with Customer [Abstract]
Revenue recognized related to contract liabilities	$ 4.1	$ 9

Revenues - Remaining Performanc

Revenues - Remaining Performance Obligation (Details) $ in Thousands	Jun. 30, 2022 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 215,254
Minimum monthly fees
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	114,858
Professional Services
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	1,785
Other
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	98,611
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 38,162
Performance obligations expected to be satisfied, expected timing	6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01 | Minimum monthly fees
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 34,454
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01 | Professional Services
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	1,675
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01 | Other
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	2,033
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 47,533
Performance obligations expected to be satisfied, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 | Minimum monthly fees
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 38,888
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 | Professional Services
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	104
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 | Other
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	8,541
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 36,616
Performance obligations expected to be satisfied, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 | Minimum monthly fees
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 22,938
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 | Professional Services
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	3
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 | Other
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	13,675
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 28,741
Performance obligations expected to be satisfied, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01 | Minimum monthly fees
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 9,852
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01 | Professional Services
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	3
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01 | Other
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	18,886
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 26,870
Performance obligations expected to be satisfied, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 | Minimum monthly fees
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 4,161
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 | Professional Services
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 | Other
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	22,709
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 29,903
Performance obligations expected to be satisfied, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 | Minimum monthly fees
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 3,065
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 | Professional Services
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 | Other
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	26,838
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 7,429
Performance obligations expected to be satisfied, expected timing
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01 | Minimum monthly fees
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 1,500
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01 | Professional Services
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01 | Other
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 5,929

Acquisitions - Narrative (Detai

Acquisitions - Narrative (Details) $ in Thousands

1 Months Ended

3 Months Ended

6 Months Ended

13 Months Ended

Mar. 07, 2022 USD ($) installment

Jun. 01, 2021 USD ($)

Apr. 13, 2021 USD ($)

Apr. 01, 2021 USD ($) cashPayment

Mar. 31, 2026 USD ($)

Mar. 31, 2025 USD ($)

Mar. 31, 2024 USD ($)

Jun. 30, 2022 USD ($)

Mar. 31, 2022 USD ($)

Jun. 30, 2021 USD ($)

Mar. 31, 2021 USD ($)

Jun. 30, 2022 USD ($)

Jun. 30, 2021 USD ($)

Jun. 30, 2022

Business Acquisition [Line Items]

Number of installments | installment

3

Final payment

$ 4,000

Discount rate of deferred liability

3.40%

Deferred liability

$ 216,600

Custodian fees (over)

$ 3,000,000

Asset acquisition, contingent consideration arrangements, range of outcomes, value, high

225,000

Repurchase of non-controlling interest

11,200

$ 0

$ 216,594

$ 11,191

$ 0

Contingent consideration as part of asset acquisition

27,200

$ 0

$ 27,200

Acquisition of non-controlling interest

$ 96,992

Health Savings Account Assets of Bell Bank’s Healthcare Bank Division

Business Acquisition [Line Items]

Cash consideration

$ 200,000

Number of additional cash payments required | cashPayment

2

Deferred payments

$ 25,000

Decrease in payment of acquire business

12,500

Finite-lived intangible assets acquired

$ 263,400

Weighted average life (in years)

5 years 7 months 6 days

Deferred liability

$ 47,400

U.S. Health

Business Acquisition [Line Items]

Ownership percentage by noncontrolling interest

4.53%

WEX Europe Services

Business Acquisition [Line Items]

Ownership percentage

100%

SOFR rate | March 2024 to March 2025 at 12-month SOFR

Business Acquisition [Line Items]

Margin on variable rate, percent

1.25%

SOFR rate | March 2025 to March 2026 at 12-month SOFR

Business Acquisition [Line Items]

Margin on variable rate, percent

2.25%

PO Holding

Business Acquisition [Line Items]

Percentage of voting interests acquired

4.53%

Purchase price

$ 234,000

Deferred liability

216,600

Repurchase of non-controlling interest

$ 254,400

PO Holding | Forecast

Business Acquisition [Line Items]

Payable purchase price

$ 76,700

$ 76,700

$ 76,700

Final payment

$ 4,000

WEX Europe Services

Business Acquisition [Line Items]

Percentage of voting interests acquired

25%

Purchase price

$ 97,000

Unrealized loss on available-for-sale debt securities

81,600

Acquisition of non-controlling interest

$ 13,100

Reduction of interest (in percent)

25%

Accumulated other comprehensive income

$ 2,300

Benefitexpress

Business Acquisition [Line Items]

Purchase price

$ 275,000

Weighted average life (in years)

8 years 1 month 6 days

Acquisitions - Schedules of Ass

Acquisitions - Schedules of Assets and Liabilities Acquired (Details) - USD ($) $ in Thousands	6 Months Ended		13 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Cash consideration transferred, net of $15.0 million in cash and restricted cash acquired	$ 0	$ 558,273
Less:
Recorded goodwill	2,873,369		$ 2,873,369	$ 2,908,057
Benefitexpress
Business Acquisition [Line Items]
Cash acquired from acquisition			15,000
Cash consideration transferred, net of $15.0 million in cash and restricted cash acquired			259,061
Less:
Accounts receivable	3,103		3,103
Other assets	4,387		4,387
Accrued expenses	(3,498)		(3,498)
Restricted cash payable	(14,328)		(14,328)
Other liabilities	(5,177)		(5,177)
Recorded goodwill	168,424		$ 168,424
Weighted average life (in years)			8 years 1 month 6 days
Acquisition-related intangible amortization			$ 106,200
Benefitexpress | Customer Relationships
Less:
Intangible assets	84,400		$ 84,400
Weighted average life (in years)			9 years 3 months 18 days
Benefitexpress | Developed Technologies
Less:
Intangible assets	19,600		$ 19,600
Weighted average life (in years)			3 years 7 months 6 days
Benefitexpress | Noncompete Agreements
Less:
Intangible assets	$ 2,150		$ 2,150
Weighted average life (in years)			2 years 6 months

Accounts Receivable, net of A_3

Accounts Receivable, net of Allowances - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Revolving Line-of-credit Facility under 2016 Credit Agreement
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables with revolving credit balances	$ 145.3	$ 93.7

Accounts Receivable, net of A_4

Accounts Receivable, net of Allowances - Changes in Reserves for Accounts Receivable (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Accounts Receivable And Other Assets, Allowance for Credit Loss
Balance, beginning of period	$ 76,253	$ 55,143	$ 66,306	$ 59,147
Provision for credit losses	42,186	12,962	67,826	18,021
Charges to other accounts	10,355	3,848	18,685	8,221
Charge-offs	(29,813)	(15,931)	(56,016)	(30,255)
Recoveries of amounts previously charged-off	2,809	1,525	5,240	3,047
Currency translation	(1,183)	224	(1,434)	(410)
Balance, end of period	100,607	57,771	100,607	57,771
Fleet Solutions
Accounts Receivable And Other Assets, Allowance for Credit Loss
Balance, beginning of period	63,938	46,181	55,758	49,267
Provision for credit losses	42,446	11,764	65,670	16,128
Charges to other accounts	10,217	3,848	18,617	8,221
Charge-offs	(29,500)	(13,593)	(55,295)	(26,367)
Recoveries of amounts previously charged-off	2,809	1,365	5,230	2,881
Currency translation	(686)	151	(756)	(414)
Balance, end of period	89,224	49,716	89,224	49,716
Travel and Corporate Solutions
Accounts Receivable And Other Assets, Allowance for Credit Loss
Balance, beginning of period	11,636	8,650	9,931	9,610
Provision for credit losses	(726)	1,117	1,421	1,752
Charges to other accounts	169	0	169	0
Charge-offs	(186)	(2,328)	(447)	(3,860)
Recoveries of amounts previously charged-off	0	7	0	13
Currency translation	(497)	73	(678)	4
Balance, end of period	10,396	7,519	10,396	7,519
Health and Employee Benefit Solutions
Accounts Receivable And Other Assets, Allowance for Credit Loss
Balance, beginning of period	679	312	617	270
Provision for credit losses	466	81	735	141
Charges to other accounts	(31)	0	(101)	0
Charge-offs	(127)	(10)	(274)	(28)
Recoveries of amounts previously charged-off	0	153	10	153
Currency translation	0	0	0	0
Balance, end of period	$ 987	$ 536	$ 987	$ 536

Accounts Receivable, net of A_5

Accounts Receivable, net of Allowances - Concentration of Credit Risk (Details) - Credit Concentration Risk - Accounts receivable, net	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Less than 30 days past due
Concentration Risk [Line Items]
Concentration risk, percentage	99%	98%
Less than 60 days past due
Concentration Risk [Line Items]
Concentration risk, percentage	99%	99%

Repurchases of Common Stock - N

Repurchases of Common Stock - Narrative (Details) - USD ($) shares in Thousands, $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Jul. 22, 2022	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount		$ 150		$ 150
Treasury stock purchased (in shares)		80,599	0	520	0
Remaining authorized repurchase amount		$ 69.4		$ 69.4
Subsequent Event
Equity, Class of Treasury Stock [Line Items]
Shares repurchased during period (in shares)	400
Shares repurchased during period	$ 62.1

Repurchases of Common Stock - C

Repurchases of Common Stock - Class of Treasury Stock (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Equity, Class of Treasury Stock [Line Items]
Treasury stock purchased (in shares)	80,599	0	520	0
Stock repurchase program, authorized amount	$ 150,000		$ 150,000
Purchase of treasury shares			$ 80,599
Treasury stock average cost (in dollars per share)			$ 155.06

Earnings per Share - Summary of

Earnings per Share - Summary of Net (Loss) Earning Attributable to Shareholders and Reconciliation of Basic and Diluted Shares (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income (loss) attributable to shareholders	$ 34,129	$ (33,856)	$ 156,892	$ (36,421)
Weighted average common shares outstanding – Basic (in shares)	44,790	44,788	44,851	44,566
Dilutive impact of share-based compensation awards (in shares)	287	0	360	0
Weighted average common shares outstanding – Diluted (in shares)	45,077	44,788	45,211	44,566
Antidilutive securities excluded from computation of earnings (in shares)	700	900	600	1,000
Convertible Debt Securities
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings (in shares)			1,600	1,600

Derivative Instruments - Schedu

Derivative Instruments - Schedule of Interest Rate Swaps (Details) - Derivatives Not Designated as Hedging Instruments $ in Thousands	Jun. 30, 2022 USD ($)
Derivative [Line Items]
Notional amount at inception	$ 1,900,000
December 2022
Derivative [Line Items]
Fixed interest rate	2.204%
Notional amount at inception	$ 300,000
March 2023
Derivative [Line Items]
Fixed interest rate	1.954%
Notional amount at inception	$ 150,000
March 2023 | Minimum
Derivative [Line Items]
Fixed interest rate	1.956%
Notional amount at inception	$ 100,000
March 2023 | Maximum
Derivative [Line Items]
Fixed interest rate	2.413%
Notional amount at inception	$ 200,000
December 2023
Derivative [Line Items]
Fixed interest rate	1.862%
Notional amount at inception	$ 200,000
May 2024 | Minimum
Derivative [Line Items]
Fixed interest rate	0.435%
Notional amount at inception	$ 150,000
May 2024 | Maximum
Derivative [Line Items]
Fixed interest rate	0.44%
Notional amount at inception	$ 150,000
May 2025
Derivative [Line Items]
Fixed interest rate	0.678%
Notional amount at inception	$ 300,000
May 2026 | Minimum
Derivative [Line Items]
Fixed interest rate	0.909%
Notional amount at inception	$ 150,000
May 2026 | Maximum
Derivative [Line Items]
Fixed interest rate	0.91%
Notional amount at inception	$ 150,000

Derivative Instruments - Locati

Derivative Instruments - Location and Amounts of Interest Rate Swap Gains and Losses (Details) - Derivatives Not Designated as Hedging Instruments - Interest Rate Swaps - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Net unrealized gain (loss) on financial instruments
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate swap gains (losses)	$ 17,775	$ 5,962	$ 68,871	$ 13,481
Financing interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate swap gains (losses)	$ (3,031)	$ (6,081)	$ (8,912)	$ (11,538)

Deposits - Schedule of Composit

Deposits - Schedule of Composition of Deposits (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Banking and Thrift, Interest [Abstract]
Customer deposits	$ 136,866,000	$ 129,180,000
Certificates of deposit with maturities within 1 year	364,337,000	566,427,000
Interest-bearing brokered money market deposits	314,017,000	370,813,000
HSA deposits	2,070,507,000	960,000,000
Short-term contractual deposits	2,885,727,000	2,026,420,000
Certificates of deposit with maturities greater than 1 year and less than 5 years	588,932,000	652,214,000
Total deposits	$ 3,474,659,000	$ 2,678,634,000
Weighted average cost of demand deposits outstanding (as a percent)	0.04%	0.03%
Weighted average cost of funds on certificates of deposit outstanding (as a percent)	0.61%	0.48%
Weighted average cost of interest-bearing money market deposits outstanding (as a percent)	1.71%	0.20%
Certificates of deposits denominations in dollar amount	$ 250,000	$ 250,000

Deposits - Narrative (Details)

Deposits - Narrative (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Banking and Thrift, Interest [Abstract]
Required reserve based on the outstanding customer deposits	$ 0	$ 0

Financing and Other Debt - Sche

Financing and Other Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Long-term debt, gross	$ 2,986,350	$ 2,905,088
Current portion of gross debt	185,791	165,703
Less: Unamortized debt issuance costs/debt discount	(9,957)	(9,934)
Short-term debt, net	175,834	155,769
Long-term portion of gross debt	2,800,559	2,739,385
Less: Unamortized debt issuance costs/debt discount	(39,028)	(44,020)
Long-term debt, net	2,761,531	2,695,365
Participation debt
Debt Instrument [Line Items]
Long-term debt, gross	52,245	1,500
Revolving Line-of-credit Facility under 2016 Credit Agreement
Debt Instrument [Line Items]
Long-term debt, gross	180,400	119,800
Revolving Line-of-credit Facility under 2016 Credit Agreement | 2016 Credit Agreement | Letter of Credit
Supplemental information:
Letters of credit	31,209	51,392
Remaining borrowing capacity on revolving credit facility	718,391	758,808
Secured Debt
Debt Instrument [Line Items]
Long-term debt, gross	102,449	100,861
Secured Debt | Line of Credit | 2016 Credit Agreement
Debt Instrument [Line Items]
Long-term debt, gross	2,341,256	2,372,927
Secured Debt | Line of Credit | Tranche A Term Loans
Debt Instrument [Line Items]
Long-term debt, gross	917,281	941,742
Secured Debt | Line of Credit | Tranche B Term Loans
Debt Instrument [Line Items]
Long-term debt, gross	1,423,975	1,431,185
Convertible Debt
Debt Instrument [Line Items]
Long-term debt, gross	$ 310,000	$ 310,000

Financing and Other Debt - Narr

Financing and Other Debt - Narrative (Details)			6 Months Ended	12 Months Ended
	Apr. 01, 2021 USD ($)	Jul. 01, 2020 USD ($) $ / shares	Jun. 30, 2022 USD ($) securitized_debt_agreement	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Number of securitized debt agreements | securitized_debt_agreement			2
Participation securities current maturities			$ 175,834,000	$ 155,769,000
Borrowed federal funds				0
Accounts receivable pledged as collateral			4,444,958,000	2,891,242,000
Fleet Solutions | Asset Pledged as Collateral
Debt Instrument [Line Items]
Accounts receivable pledged as collateral			440,300,000
Period One
Debt Instrument [Line Items]
Borrowings under guaranteed investment agreements			60,000,000
Period Two
Debt Instrument [Line Items]
Borrowings under guaranteed investment agreements				$ 40,000,000
Line of Credit
Debt Instrument [Line Items]
Borrowed federal funds			$ 0
2016 Credit Agreement
Debt Instrument [Line Items]
Weighted average effective interest rate (as a percent)			3.70%	2.20%
Commitment fee percentage			0.30%	0.40%
2016 Credit Agreement | Minimum
Debt Instrument [Line Items]
Commitment fee percentage			0.25%
2016 Credit Agreement | Maximum
Debt Instrument [Line Items]
Commitment fee percentage			0.50%
Convertible Senior Notes Due 2027 | Convertible Debt
Debt Instrument [Line Items]
Aggregate amount		$ 310,000,000
Interest rate, stated percentage		6.50%	0.065%
Conversion price (in dollars per share) | $ / shares		$ 200
Redemption price, percent		105%
Repayments of convertible debt			$ 0
Debt instrument, term (in years)		7 years
Effective interest rate on the liability component			7.50%	7.50%
European Securitization Facility
Debt Instrument [Line Items]
Interest rate during period, percent			1.42%	0.91%
Credit Facility Term Loans | Tranche A Term Loans
Debt Instrument [Line Items]
Line of credit facility, periodic payment	$ 12,200,000
Credit Facility Term Loans | Tranche B Term Loans
Debt Instrument [Line Items]
Line of credit facility, periodic payment	$ 3,600,000
Credit Facility Term Loans | Tranche B Term Loans | Base Rate
Debt Instrument [Line Items]
Margin on variable rate, percent	1.25%
Credit Facility Term Loans | Tranche B Term Loans | Eurocurrency Rate
Debt Instrument [Line Items]
Margin on variable rate, percent	2.25%
Participation Debt | Line of Credit
Debt Instrument [Line Items]
Weighted average effective interest rate (as a percent)			4.02%	2.54%
Participation agreements short term and long term debt			$ 52,200,000	$ 1,500,000
Participation securities current maturities			20,000,000	1,500,000
Borrowed federal funds			$ 32,200,000
Participation Debt | Line of Credit | Minimum | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Margin on variable rate, percent			2.25%
Participation Debt | Line of Credit | Maximum | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Margin on variable rate, percent			2.50%
Revolving Line-of-credit Facility under 2016 Credit Agreement | Federal Reserve Bank
Debt Instrument [Line Items]
Current borrowing capacity			$ 311,100,000	268,600,000
Letters of credit			$ 0	$ 0
Revolving Line-of-credit Facility under 2016 Credit Agreement | 2016 Credit Agreement
Debt Instrument [Line Items]
Remaining borrowing capacity on revolving credit facility	$ 930,000,000

Financing and Other Debt - Sc_2

Financing and Other Debt - Schedule of Convertible Notes (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Principal	$ 2,986,350	$ 2,905,088
Convertible Debt
Debt Instrument [Line Items]
Principal	310,000	310,000
Convertible Debt | Convertible Senior Notes Due 2027
Debt Instrument [Line Items]
Principal	310,000	310,000
Less: Unamortized discounts	(11,867)	(12,844)
Less: Unamortized issuance cost	(1,911)	(2,068)
Net carrying amount of Convertible Notes	$ 296,222	$ 295,088

Financing and Other Debt - Sc_3

Financing and Other Debt - Schedule of Total Interest Expense for Convertible Note (Details) - Convertible Debt - Convertible Senior Notes Due 2027 - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jul. 01, 2020
Debt Instrument [Line Items]
Interest on 6.5 percent coupon	$ 5,038	$ 5,038	$ 10,075	$ 10,075
Amortization of debt discount and debt issuance costs	541	501	1,134	1,054
Operating interest	$ 5,579	$ 5,539	$ 11,209	$ 11,129
Interest rate, stated percentage	0.065%		0.065%		6.50%

Off-Balance Sheet Arrangements

Off-Balance Sheet Arrangements (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable in excess of credit limits	$ 0		$ 0		$ 0
Charge-backs in excess of credit limits	0		0		$ 0
WEX Europe Services
Accounts, Notes, Loans and Financing Receivable [Line Items]
Proceeds from sale of factoring receivables	159.6	$ 144.7	304.6	$ 263.7
Loss on sale of factoring receivables	0.8	(0.7)	1.5	(1.3)
Wex Bank
Accounts, Notes, Loans and Financing Receivable [Line Items]
Proceeds from sale of factoring receivables	1,600	400	2,400	600
Losses on factoring	$ 0	$ 0	$ 0	$ 0

Investment Securities - Narrati

Investment Securities - Narrative (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($) security	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) security	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Investments, Debt and Equity Securities [Abstract]
Accrued investment interest	$ 7.4		$ 7.4		$ 4.2
Debt securities, unrealized loss position, number of positions | security	337		337
Unrealized losses related to equity securities	$ 0.9	$ 0	$ 2.2	$ 0

Investment Securities - Availab

Investment Securities - Available-For-Sale Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized cost, current	$ 1,541,924	$ 954,797
Accumulated gross unrealized gain, current	389	359
Accumulated gross unrealized loss, current	99,897	6,479
Debt securities, current	1,442,416	948,677
Amortized cost, noncurrent	40,506	40,394
Accumulated gross unrealized gain, noncurrent	6	4
Accumulated gross unrealized loss, noncurrent	3,259	748
Fair Value	37,253	39,650
Amortized Cost	1,582,430	995,191
Total Unrealized Gains	395	363
Total Unrealized Losses	103,156	7,227
Fair Value	1,479,669	988,327
Trading securities	10,800	11,300
U.S. treasury notes
Debt Securities, Available-for-sale [Line Items]
Amortized cost, current	405,640	308,058
Accumulated gross unrealized gain, current	0	250
Accumulated gross unrealized loss, current	28,103	1,113
Debt securities, current	377,537	307,195
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost, current	527,866	355,102
Accumulated gross unrealized gain, current	6	30
Accumulated gross unrealized loss, current	41,282	3,289
Debt securities, current	486,590	351,843
Corporate debt securities | Level 2
Debt Securities, Available-for-sale [Line Items]
Debt securities, current	486,590	351,843
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Amortized cost, current	53,013	31,273
Accumulated gross unrealized gain, current	33	44
Accumulated gross unrealized loss, current	4,518	149
Debt securities, current	48,528	31,168
Amortized cost, noncurrent	3,081	3,107
Accumulated gross unrealized gain, noncurrent	0	1
Accumulated gross unrealized loss, noncurrent	360	0
Fair Value	2,721	3,108
Municipal bonds | Level 2
Debt Securities, Available-for-sale [Line Items]
Debt securities, current	48,528	31,168
Fair Value	2,721	3,108
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost, current	208,634	120,774
Accumulated gross unrealized gain, current	166	24
Accumulated gross unrealized loss, current	7,230	587
Debt securities, current	201,570	120,211
Amortized cost, noncurrent	149	167
Accumulated gross unrealized gain, noncurrent	1	1
Accumulated gross unrealized loss, noncurrent	0	0
Fair Value	150	168
Asset-backed securities | Level 2
Debt Securities, Available-for-sale [Line Items]
Debt securities, current	201,570	120,211
Fair Value	150	168
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized cost, current	346,771	139,590
Accumulated gross unrealized gain, current	184	11
Accumulated gross unrealized loss, current	18,764	1,341
Debt securities, current	328,191	138,260
Amortized cost, noncurrent	116	121
Accumulated gross unrealized gain, noncurrent	5	2
Accumulated gross unrealized loss, noncurrent	0	0
Fair Value	121	123
Mortgage-backed securities | Level 2
Debt Securities, Available-for-sale [Line Items]
Debt securities, current	328,191	138,260
Fair Value	121	123
Mutual fund
Debt Securities, Available-for-sale [Line Items]
Amortized cost, noncurrent	28,160	27,999
Accumulated gross unrealized gain, noncurrent	0	0
Accumulated gross unrealized loss, noncurrent	2,899	748
Fair Value	25,261	27,251
Mutual fund | Level 1
Debt Securities, Available-for-sale [Line Items]
Fair Value	25,261	27,251
Pooled investment fund
Debt Securities, Available-for-sale [Line Items]
Amortized cost, noncurrent	9,000	9,000
Accumulated gross unrealized gain, noncurrent	0	0
Accumulated gross unrealized loss, noncurrent	0	0
Fair Value	9,000	9,000
Pooled investment fund | Level 2
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 9,000	$ 9,000

Investment Securities - Unreali

Investment Securities - Unrealized losses On Debt Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
U.S. treasury notes
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 377,537	$ 268,839
Gross Unrealized Losses	28,103	1,113
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	483,681	336,777
Gross Unrealized Losses	41,282	3,289
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Fair Value	42,525	24,049
Gross Unrealized Losses	4,878	149
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	167,130	101,983
Gross Unrealized Losses	7,230	587
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	313,916	132,737
Gross Unrealized Losses	$ 18,764	$ 1,341

Investment Securities - Maturit

Investment Securities - Maturity Dates Of Available-For-Sale Securities (Details) $ in Thousands	Jun. 30, 2022 USD ($)
Amortized Cost
Due after 1 year through year 5	$ 486,447
Due after 5 years through year 10	581,390
Due after 10 years	477,433
Net Carrying Amount	1,545,270
Fair Value
Due after 1 year through year 5	456,472
Due after 5 years through year 10	534,290
Due after 10 years	454,646
Fair Value	$ 1,445,408

Fair Value - Assets and Liabili

Fair Value - Assets and Liabilities Measured at Fair Value and Related Hierarchy Levels (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Investment securities, current:
Debt securities, current	$ 1,442,416	$ 948,677
Investment securities, non-current:
Fair Value	37,253	39,650
Prepaid expenses and other current assets
Investment securities, non-current:
Executive deferred compensation plan trust	1,600	1,600
Derivative asset		100
Other assets
Investment securities, non-current:
Executive deferred compensation plan trust	9,200	9,700
Derivative asset		14,900
Other current liabilities
Liabilities
Derivative liability	14,900
Other liabilities
Liabilities
Derivative liability	157,200	67,300
Corporate debt securities
Investment securities, current:
Debt securities, current	486,590	351,843
Municipal bonds
Investment securities, current:
Debt securities, current	48,528	31,168
Investment securities, non-current:
Fair Value	2,721	3,108
Asset-backed securities
Investment securities, current:
Debt securities, current	201,570	120,211
Investment securities, non-current:
Fair Value	150	168
Mortgage-backed securities
Investment securities, current:
Debt securities, current	328,191	138,260
Investment securities, non-current:
Fair Value	121	123
Mutual fund
Investment securities, non-current:
Fair Value	25,261	27,251
Pooled investment fund measured at NAV
Investment securities, non-current:
Fair Value	9,000	9,000
Interest Rate Swaps | Prepaid expenses and other current assets
Investment securities, non-current:
Derivative asset	27,000
Interest Rate Swaps | Other assets
Investment securities, non-current:
Derivative asset	37,000
Interest Rate Swaps | Other current liabilities
Liabilities
Derivative liability		17,600
Interest Rate Swaps | Other liabilities
Liabilities
Derivative liability		2,400
Level 1
Investment securities, non-current:
Executive deferred compensation plan trust	10,827	11,303
Level 1 | Money market funds
Assets:
Money market funds	28,901	3,670
Level 1 | Mutual fund
Investment securities, non-current:
Fair Value	25,261	27,251
Level 2 | US Treasury Securities
Investment securities, current:
Debt securities, current	377,537	307,195
Level 2 | Corporate debt securities
Investment securities, current:
Debt securities, current	486,590	351,843
Level 2 | Municipal bonds
Investment securities, current:
Debt securities, current	48,528	31,168
Investment securities, non-current:
Fair Value	2,721	3,108
Level 2 | Asset-backed securities
Investment securities, current:
Debt securities, current	201,570	120,211
Investment securities, non-current:
Fair Value	150	168
Level 2 | Mortgage-backed securities
Investment securities, current:
Debt securities, current	328,191	138,260
Investment securities, non-current:
Fair Value	121	123
Level 2 | Pooled investment fund measured at NAV
Investment securities, non-current:
Fair Value	9,000	9,000
Level 2 | Interest Rate Swaps
Investment securities, non-current:
Derivative asset	63,920	15,031
Liabilities
Derivative liability	0	19,982
Level 3 | Contingent consideration derivative
Liabilities
Derivative liability	$ 172,100	$ 67,300

Fair Value - Pooled Investment

Fair Value - Pooled Investment Fund (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	$ 37,253	$ 39,650
Pooled investment fund measured at NAV
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	9,000	$ 9,000
Net Asset Value | Pooled investment fund measured at NAV
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	$ 0
Redemption Notice Period	30 days

Fair Value - Narrative (Details

Fair Value - Narrative (Details) $ in Millions	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Level 3 | Recurring | Valuation, Market Approach | Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration, liability, measurement input	0.0327	0.0145
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible debt, fair value	$ 314.7	$ 327.7
Deposits, fair value	554.1
Level 2 | Tranche A Term Loans | Line of Credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of amount outstanding	892.1
Level 2 | Tranche B Term Loans | Line of Credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of amount outstanding	1,370.6
Level 2 | Revolving Line-of-credit Facility under 2016 Credit Agreement | Line of Credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of amount outstanding	$ 173

Fair Value - Contingent Conside

Fair Value - Contingent Consideration Liability are Measured at Fair Value on a Recurring Basis Using Unobservable Inputs (Level 3) (Details) - Obligations $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Contingent consideration, beginning balance	$ 67,300
Change in estimated fair value	104,800
Contingent consideration, ending balance	$ 172,100

Redeemable Non-Controlling In_3

Redeemable Non-Controlling Interest - Narrative (Details) - USD ($) $ in Thousands			3 Months Ended				6 Months Ended
	Mar. 07, 2022	Apr. 01, 2021	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Mar. 05, 2019
Noncontrolling Interest [Line Items]
Deferred liability	$ 216,600
Repurchase of non-controlling interest		$ 11,200	$ 0	$ 216,594	$ 11,191	$ 0
Change in value of redeemable non-controlling interest			$ 0	$ (37,780)	$ 43,823	$ 25,044	$ (37,800)
Noncontrolling interest, deferred tax expense							$ 3,500
PO Holding
Noncontrolling Interest [Line Items]
Percentage of voting interests acquired	4.53%
Purchase price	$ 234,000
Deferred liability	216,600
Repurchase of non-controlling interest	$ 254,400
Discovery Benefits
Noncontrolling Interest [Line Items]
Ownership percentage by noncontrolling interest								4.90%
Discovery Benefits | Maximum
Noncontrolling Interest [Line Items]
Call rights, exercise period							7 years
Wex Bank
Noncontrolling Interest [Line Items]
Ownership percentage by noncontrolling interest		4.53%
Ownership percentage	100%

Redeemable Non-Controlling In_4

Redeemable Non-Controlling Interest - Schedule of Redeemable Non-Controlling Interest (Details) - USD ($) $ in Thousands		3 Months Ended				6 Months Ended
	Apr. 01, 2021	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022
Increase (Decrease) in Temporary Equity [Roll Forward]
Beginning balance	$ 142,616	$ 0	$ 254,106	$ 142,616	$ 117,219	$ 254,106
Net income attributable to redeemable non-controlling interest		0	268	232	353
Change in value of redeemable non-controlling interest		0	(37,780)	43,823	25,044	(37,800)
Repurchase of non-controlling interest	$ (11,200)	0	(216,594)	(11,191)	0
Contribution from non-controlling interest		0		12,457
Ending balance		$ 0	$ 0	$ 187,937	$ 142,616	$ 0

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Effective tax rate	29.80%		(7.90%)	31.50%	(7.80%)
Uncertain tax position		$ 7.5
Undistributed earnings of certain foreign subsidiaries	$ 150.4			$ 150.4		$ 133

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($)	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Restructuring (reversals) charges		$ 0	$ 5,400,000	$ 0
Incurred penalties reversed	$ 7,000,000	7,000,000
Other commitment	$ 48,000,000	$ 48,000,000

Stock-Based Compensation (Detai

Stock-Based Compensation (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Share-Based Payment Arrangement [Abstract]
Stock-based compensation expense	$ 24.9	$ 20.6	$ 48.6	$ 38.5

Segment Information - Narrative

Segment Information - Narrative (Details)	6 Months Ended
	Jun. 30, 2022 segment
Segment Reporting [Abstract]
Number of reportable segments	3

Segment Information - Revenue b

Segment Information - Revenue by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Total revenues	$ 598,237	$ 459,483	$ 1,115,772	$ 870,240
Fleet Solutions
Segment Reporting Information [Line Items]
Total revenues	379,223	274,388	698,362	518,225
Travel and Corporate Solutions
Segment Reporting Information [Line Items]
Total revenues	100,410	81,762	177,661	152,404
Health and Employee Benefit Solutions
Segment Reporting Information [Line Items]
Total revenues	118,604	103,333	239,749	199,611
Payment processing revenue
Segment Reporting Information [Line Items]
Total revenues	312,305	213,426	551,783	401,815
Payment processing revenue | Fleet Solutions
Segment Reporting Information [Line Items]
Total revenues	202,359	126,450	354,265	237,026
Payment processing revenue | Travel and Corporate Solutions
Segment Reporting Information [Line Items]
Total revenues	88,608	68,282	153,683	125,530
Payment processing revenue | Health and Employee Benefit Solutions
Segment Reporting Information [Line Items]
Total revenues	21,338	18,694	43,835	39,259
Account servicing revenue
Segment Reporting Information [Line Items]
Total revenues	137,638	132,997	277,579	251,620
Account servicing revenue | Fleet Solutions
Segment Reporting Information [Line Items]
Total revenues	43,860	42,293	86,303	82,284
Account servicing revenue | Travel and Corporate Solutions
Segment Reporting Information [Line Items]
Total revenues	10,400	11,222	21,158	21,909
Account servicing revenue | Health and Employee Benefit Solutions
Segment Reporting Information [Line Items]
Total revenues	83,378	79,482	170,118	147,427
Finance fee revenue
Segment Reporting Information [Line Items]
Total revenues	85,310	59,499	163,892	111,652
Finance fee revenue | Fleet Solutions
Segment Reporting Information [Line Items]
Total revenues	85,067	59,258	163,472	111,098
Finance fee revenue | Travel and Corporate Solutions
Segment Reporting Information [Line Items]
Total revenues	216	199	357	493
Finance fee revenue | Health and Employee Benefit Solutions
Segment Reporting Information [Line Items]
Total revenues	27	42	63	61
Other revenue
Segment Reporting Information [Line Items]
Total revenues	62,984	53,561	122,518	105,153
Other revenue | Fleet Solutions
Segment Reporting Information [Line Items]
Total revenues	47,937	46,387	94,322	87,817
Other revenue | Travel and Corporate Solutions
Segment Reporting Information [Line Items]
Total revenues	1,186	2,059	2,463	4,472
Other revenue | Health and Employee Benefit Solutions
Segment Reporting Information [Line Items]
Total revenues	$ 13,861	$ 5,115	$ 25,733	$ 12,864

Segment Information - Reconcili

Segment Information - Reconciliation of Adjusted Operating Income to Income Before Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Segment Reporting Information [Line Items]
Adjusted operating income	$ 272,292,000	$ 184,102,000	$ 496,223,000	$ 339,919,000
Stock-based compensation			48,604,000	38,515,000
Other costs			0	5,400,000	$ 0
Operating income	171,131,000	82,278,000	293,405,000	132,819,000
Financing interest expense	(31,820,000)	(32,473,000)	(61,509,000)	(65,757,000)
Net foreign currency (loss) gain	(19,408,000)	1,342,000	(14,402,000)	(1,413,000)
Change in fair value of contingent consideration	(88,200,000)	(47,700,000)	(104,800,000)	(47,700,000)
Net unrealized gain on financial instruments	16,894,000	6,013,000	66,721,000	13,046,000
Income before income taxes	48,597,000	9,460,000	179,415,000	30,995,000
Segment Reconciling Items
Segment Reporting Information [Line Items]
Unallocated corporate expenses	18,986,000	17,174,000	39,997,000	33,383,000
Acquisition-related intangible amortization	42,538,000	45,294,000	85,257,000	87,748,000
Other acquisition and divestiture related items	6,461,000	10,690,000	11,001,000	25,486,000
Debt restructuring costs	(17,000)	5,299,000	(29,000)	5,936,000
Stock-based compensation	25,267,000	21,662,000	50,487,000	40,605,000
Other costs	7,926,000	1,705,000	16,105,000	13,942,000
Fleet Solutions
Segment Reporting Information [Line Items]
Adjusted operating income	192,969,000	137,865,000	353,070,000	256,123,000
Travel and Corporate Solutions
Segment Reporting Information [Line Items]
Adjusted operating income	51,016,000	17,157,000	79,346,000	24,172,000
Health and Employee Benefit Solutions
Segment Reporting Information [Line Items]
Adjusted operating income	$ 28,307,000	$ 29,080,000	$ 63,807,000	$ 59,624,000

Supplementary Regulatory Capi_3

Supplementary Regulatory Capital Disclosure (Details) $ in Thousands	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Debt Disclosure [Abstract]
Total Capital to risk-weighted assets, Actual Amount	$ 588,167	$ 402,406
Total Capital to risk-weighted assets, Actual, Ratio	0.1204	0.1263
Total Capital to risk-weighted assets, Minimum for Capital Adequacy Purposes Amount	$ 390,889	$ 254,984
Total Capital to risk-weighted assets, Minimum for Capital Adequacy Purposes, Ratio	0.0800	0.0800
Total Capital to risk-weighted assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 488,611	$ 318,731
Total Capital to risk-weighted assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.1000	0.1000
Tier 1 Capital to average assets, Actual Amount	$ 542,839	$ 366,121
Tier 1 Capital to average assets, Actual, Ratio	0.0983	0.0875
Tier 1 Capital to average assets, Minimum for Capital Adequacy Purposes Amount	$ 220,839	$ 167,317
Tier 1 Capital to average assets, Minimum for Capital Adequacy Purposes, Ratio	0.0400	0.0400
Tier 1 Capital to average assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 276,048	$ 209,147
Tier 1 Capital to average assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provision, Ratio	0.0500	0.0500
Common equity to risk-weighted assets, Actual Amount	$ 542,839	$ 366,121
Common equity to risk-weighted assets, Actual, Ratio	11.11%	11.49%
Common equity to risk-weighted assets, Minimum for Capital Adequacy Purposes Amount	$ 219,875	$ 143,429
Common equity to risk-weighted assets, Minimum for Capital Adequacy Purposes, Ratio	4.50%	4.50%
Common equity to risk-weighted assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 317,597	$ 207,175
Common equity to risk-weighted assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	6.50%	6.50%
Tier 1 Capital to risk-weighted assets, Actual Amount	$ 542,839	$ 366,121
Tier 1 Capital to risk-weighted assets, Actual, Ratio	0.1111	0.1149
Tier 1 Capital to risk-weighted assets, Minimum for Capital Adequacy Purposes Amount	$ 293,167	$ 191,238
Tier 1 Capital to risk-weighted assets, Ratio	0.0600	0.0600
Tier 1 Capital to risk-weighted assets, Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 390,889	$ 254,984
Tier 1 Capital to risk-weighted assets, Ratio	0.0800	0.0800