EPAM Systems (EPAM) 10-K 27 Feb 25 2024 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Feb. 10, 2025	Jun. 30, 2024
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2024
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-35418
Entity Registrant Name	EPAM SYSTEMS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	22-3536104
Entity Address, Address Line One	41 University Drive
Entity Address, Address Line Two	Suite 202
Entity Address, City or Town	Newtown
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	18940
City Area Code	267
Local Phone Number	759-9000
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	EPAM
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 10,346
Entity Common Stock, Shares Outstanding		56,888,128
Documents Incorporated by Reference	The registrant intends to file a definitive Proxy Statement for its 2025 annual meeting of stockholders pursuant to Regulation 14A within 120 days of the end of the registrant’s fiscal year ended December 31, 2024. Portions of the registrant’s Proxy Statement are incorporated by reference into Part III of this Annual Report on Form 10-K. With the exception of the portions of the Proxy Statement expressly incorporated by reference, such document shall not be deemed filed with this Annual Report on Form 10-K.
Entity Central Index Key	0001352010
Document Fiscal Year Focus	2024
Document Fiscal Period Focus (Q1,Q2,Q3,FY)	FY
Amendment Flag	false

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2024
Auditor Information [Abstract]
Auditor Firm ID	34
Auditor Name	DELOITTE & TOUCHE LLP
Auditor Location	Philadelphia, Pennsylvania

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 1,286,267	$ 2,036,235
Trade receivables and contract assets, net of allowance of $5,612 and $11,864, respectively	1,002,175	897,032
Short-term investments	1,690	60,739
Prepaid and other current assets	136,116	97,355
Total current assets	2,426,248	3,091,361
Property and equipment, net	207,667	235,053
Operating lease right-of-use assets, net	128,244	134,898
Intangible assets, net	436,418	71,118
Goodwill	1,181,575	562,459
Deferred tax assets	269,799	197,901
Other noncurrent assets	100,522	59,575
Total assets	4,750,473	4,352,365
Current liabilities
Accounts payable	44,702	31,992
Accrued compensation and benefits expenses	484,952	412,747
Accrued expenses and other current liabilities	201,356	124,823
Income taxes payable, current	50,395	38,812
Operating lease liabilities, current	39,634	36,558
Total current liabilities	821,039	644,932
Long-term debt	25,194	26,126
Operating lease liabilities, noncurrent	98,426	109,261
Deferred tax liabilities, noncurrent	92,362	8,744
Other noncurrent liabilities	82,301	91,832
Total liabilities	1,119,322	880,895
Commitments and contingencies (Note 18)
Stockholders’ equity
Common stock, $0.001 par value; 160,000 authorized; 56,869 shares issued and outstanding at December 31, 2024, and 57,787 shares issued and outstanding at December 31, 2023	57	58
Additional paid-in capital	1,190,222	1,008,766
Retained earnings	2,555,796	2,501,107
Accumulated other comprehensive loss	(116,864)	(39,040)
Total EPAM Systems, Inc. stockholders’ equity	3,629,211	3,470,891
Noncontrolling interest in consolidated subsidiaries	1,940	579
Total equity	3,631,151	3,471,470
Total liabilities and equity	$ 4,750,473	$ 4,352,365

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Current assets
Trade receivables and contract assets, allowance	$ 5,612	$ 11,864
Stockholders’ equity
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	160,000,000	160,000,000
Common stock, shares issued (in shares)	56,869,000	57,787,000
Common stock, shares outstanding (in shares)	56,869,000	57,787,000

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Revenues	$ 4,727,940	$ 4,690,540	$ 4,824,698
Operating expenses:
Cost of revenues (exclusive of depreciation and amortization)	3,277,497	3,256,514	3,286,683
Selling, general and administrative expenses	816,300	815,065	872,777
Depreciation and amortization expense	89,559	91,800	92,272
Loss on sale of business	0	25,922	0
Income from operations	544,584	501,239	572,966
Interest and other income, net	46,876	51,124	10,025
Foreign exchange loss	(7,048)	(15,778)	(75,733)
Income before provision for income taxes	584,412	536,585	507,258
Provision for income taxes	129,879	119,502	87,842
Net income	$ 454,533	$ 417,083	$ 419,416
Net income per share:
Basic (in dollars per share)	$ 7.93	$ 7.21	$ 7.32
Diluted (in dollars per share)	$ 7.84	$ 7.06	$ 7.09
Shares used in calculation of net income per share:
Basic (in shares)	57,288	57,829	57,291
Diluted (in shares)	57,983	59,085	59,169

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 454,533	$ 417,083	$ 419,416
Other comprehensive (loss)/income:
Change in foreign currency translation adjustments, net of tax	(60,378)	58,179	(49,033)
Change in unrealized (loss)/gain on hedging instruments, net of tax	(19,084)	(487)	11,723
Defined benefit pension plans - actuarial gain/(loss), net of tax	1,634	(1,411)	(3,804)
Other comprehensive (loss)/income	(77,828)	56,281	(41,114)
Comprehensive income	$ 376,705	$ 473,364	$ 378,302

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Common Stock Restricted stock units	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive (Loss)/Income	Non-controlling interest
Balance, beginning of period (in shares) at Dec. 31, 2021		56,849
Balance, beginning of period at Dec. 31, 2021	$ 2,495,837	$ 57		$ 711,912	$ 1,829,532	$ (177)	$ (54,207)	$ 8,720
Treasury stock, beginning of period (in shares) at Dec. 31, 2021						20
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock units vested (in shares)			252
Equity withheld for employee taxes (in shares)		(83)
Equity withheld for employee taxes	(23,650)			(23,650)
Stock issued in connection with Other 2021 acquisitions (Note 3) (in shares)		6				(6)
Stock issued in connection with Other 2021 acquisitions	2,000			1,941		$ 59
Stock-based compensation expense	107,513			107,513
Exercise of stock options (in shares)		511
Exercise of stock options	21,851	$ 1		21,850
Issuance of common stock from employee stock purchase plan (in shares)		120
Issuance of common stock from employee stock purchase plan	28,350			28,350
Purchase of subsidiary shares from noncontrolling interest	(7,266)			49				(7,315)
Contributions from noncontrolling interest	73							73
Other comprehensive income (loss)	(41,114)						(41,114)
Net income	419,416				419,416
Balance, end of period (in shares) at Dec. 31, 2022		57,655
Balance, end of period at Dec. 31, 2022	3,003,010	$ 58		847,965	2,248,948	$ (118)	(95,321)	1,478
Treasury stock, end of period (in shares) at Dec. 31, 2022						14
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock units vested (in shares)			336
Equity withheld for employee taxes (in shares)		(103)
Equity withheld for employee taxes	(29,301)			(29,301)
Stock issued in connection with Other 2021 acquisitions (Note 3) (in shares)		14				(14)
Stock issued in connection with Other 2021 acquisitions	3,000			2,882		$ 118
Stock-based compensation expense	135,500			135,500
Exercise of stock options (in shares)		398
Exercise of stock options	15,513	$ 0		15,513
Issuance of common stock from employee stock purchase plan (in shares)		173
Issuance of common stock from employee stock purchase plan	36,255			36,255
Repurchase of common stock (in shares)		(686)
Repurchase of common stock, including excise tax	(164,924)				(164,924)
Purchase of subsidiary shares from noncontrolling interest	(1,453)			(48)				(1,405)
Contributions from noncontrolling interest	506							506
Other comprehensive income (loss)	56,281						56,281
Net income	$ 417,083				417,083
Balance, end of period (in shares) at Dec. 31, 2023	57,787	57,787
Balance, end of period at Dec. 31, 2023	$ 3,471,470	$ 58		1,008,766	2,501,107	$ 0	(39,040)	579
Treasury stock, end of period (in shares) at Dec. 31, 2023						0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock units vested (in shares)			381
Equity withheld for employee taxes (in shares)		(122)
Equity withheld for employee taxes	(33,881)			(33,881)
Stock issued in connection with Other 2021 acquisitions (Note 3) (in shares)		13
Stock issued in connection with Other 2021 acquisitions	2,625			2,625		$ 0
Stock-based compensation expense	159,121			159,121
Exercise of stock options (in shares)		483
Exercise of stock options	22,554	$ 0		22,554
Issuance of common stock from employee stock purchase plan (in shares)		181
Issuance of common stock from employee stock purchase plan	31,037			31,037
Repurchase of common stock (in shares)		(1,854)
Repurchase of common stock, including excise tax	(399,845)	$ (1)			(399,844)
Noncontrolling interests acquired in business combination	1,358							1,358
Contributions from noncontrolling interest	7							7
Other comprehensive income (loss)	(77,828)						(77,824)	(4)
Net income	$ 454,533				454,533
Balance, end of period (in shares) at Dec. 31, 2024	56,869	56,869
Balance, end of period at Dec. 31, 2024	$ 3,631,151	$ 57		$ 1,190,222	$ 2,555,796	$ 0	$ (116,864)	$ 1,940
Treasury stock, end of period (in shares) at Dec. 31, 2024						0

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net income	$ 454,533	$ 417,083	$ 419,416
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	89,559	91,800	92,272
Operating lease right-of-use assets amortization expense	37,545	40,902	47,777
Bad debt (recovery)/expense	(4,402)	4,047	12,394
Deferred taxes	(64,195)	(37,194)	(42,164)
Stock-based compensation expense	167,297	147,730	99,909
Unrealized (gain)/loss on derivative instruments	0	(7,904)	7,904
Impairment charges	417	6,019	23,619
Loss on sale of business	0	25,922	0
Other	5,727	(599)	32,806
Changes in assets and liabilities:
Trade receivables and contract assets	15,588	32,356	(192,712)
Prepaid and other assets	(76,959)	8,409	(12,140)
Accounts payable	(29,084)	154	(2,934)
Accrued expenses and other liabilities	10,673	(84,610)	26,025
Operating lease liabilities	(39,365)	(48,093)	(51,668)
Income taxes payable	(8,166)	(33,388)	3,600
Net cash provided by operating activities	559,168	562,634	464,104
Cash flows from investing activities:
Purchases of property and equipment	(32,146)	(28,415)	(81,629)
Purchases of short-term investments	(1,229)	(11,169)	(60,000)
Proceeds from short-term investments	61,509	10,865	0
Acquisition of businesses, net of cash acquired (Note 3)	(912,158)	(24,817)	(10,644)
Purchases of non-marketable securities	(7,612)	(3,296)	(1,625)
Proceeds from sale of non-marketable securities	4,344	0	0
Other investing activities, net	2,312	(9,936)	(29,029)
Net cash used in investing activities	(884,980)	(66,768)	(182,927)
Cash flows from financing activities:
Proceeds from issuance of stock under employee incentive programs	53,731	51,636	50,660
Payments of withholding taxes related to net share settlements of restricted stock units	(35,190)	(29,102)	(26,556)
Proceeds from debt	8	825	1,763
Repayment of debt	(1,865)	(2,969)	(15,542)
Repurchase of common stock	(398,028)	(164,924)	0
Payment of contingent consideration for previously acquired businesses	(6,246)	(10,235)	(6,626)
Other financing activities, net	(2,817)	(11,004)	(5,720)
Net cash used in financing activities	(390,407)	(165,773)	(2,021)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(36,497)	29,379	(44,867)
Net (decrease)/increase in cash, cash equivalents and restricted cash	(752,716)	359,472	234,289
Cash, cash equivalents and restricted cash, beginning of period	2,043,108	1,683,636	1,449,347
Cash, cash equivalents and restricted cash, end of period	1,290,392	2,043,108	1,683,636
Cash paid during the year for:
Income taxes, net of refunds	196,392	177,426	113,188
Interest	3,738	4,698	1,659
Supplemental disclosure of non-cash investing and financing activities:
Acquisition-date fair value of contingent consideration issued for acquisition of businesses	9,755	14,850	2,645
Capital expenditures incurred but not yet paid	$ 4,190	$ 23,986	$ 57,114

CONSOLIDATED STATEMENTS OF CA_2

CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Balance sheet classification
Cash and cash equivalents	$ 1,286,267	$ 2,036,235	$ 1,681,344
Restricted cash in Prepaid and other current assets	837	5,294	430
Restricted cash in Other noncurrent assets	3,288	1,579	1,862
Total restricted cash	4,125	6,873	2,292
Total cash, cash equivalents and restricted cash	$ 1,290,392	$ 2,043,108	$ 1,683,636

ORGANIZATION AND SUMMARY OF SIG

ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2024
Accounting Policies [Abstract]
ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES EPAM Systems, Inc. (the “Company” or “EPAM”) is a leading digital transformation services and product engineering company, providing digital platform engineering and software development services to clients across six continents. In a business landscape that is constantly challenged by the pressures of digitization, EPAM focuses on building long-term partnerships with clients in various industries through innovative and scalable software solutions, integrated strategy, experience and technology consulting, and a continually evolving mix of advanced capabilities. The Company is incorporated in Delaware with headquarters in Newtown, Pennsylvania. Principles of Consolidation — The consolidated financial statements include the financial statements of EPAM and its subsidiaries. All intercompany balances and transactions have been eliminated. Use of Estimates — The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions. These estimates and assumptions affect reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as revenues and expenses during the reporting period. The Company bases its estimates and judgments on historical experience, knowledge of current conditions and its beliefs of what could occur in the future, given available information. Actual results could differ from those estimates, and such differences may be material to the financial statements. Cash and Cash Equivalents — Cash equivalents are short-term, highly liquid investments and deposits that are readily convertible into cash, with maturities of three months or less at the date acquired. Highly liquid investments with maturities greater than three months at the date acquired are reported separately from cash equivalents. Trade Receivables and Contract Assets — The Company classifies its right to consideration in exchange for deliverables as either a trade receivable or a contract asset. A trade receivable is a right to consideration that is unconditional (i.e., only the passage of time is required before payment is due) regardless of whether the amounts have been billed. Trade receivables are stated net of allowance for doubtful accounts. Outstanding trade receivables are reviewed periodically and allowances are provided for the estimated amount of receivables that may not be collected. The allowance for doubtful accounts is determined based on historical experience and management’s evaluation of trade receivables. A contract asset is a right to consideration that is conditional upon factors other than the passage of time. Contract assets primarily relate to unbilled amounts on fixed-price contracts. Contract assets are recorded when services have been provided but the Company does not have an unconditional right to receive consideration. The Company recognizes an impairment loss when the contract carrying amount is greater than the remaining consideration receivable, less directly related costs to be incurred. Property and Equipment — Property and equipment acquired in the ordinary course of the Company’s operations are stated at cost, net of accumulated depreciation. Depreciation is calculated on a straight-line basis over the estimated useful lives of the assets generally ranging from two Business Combinations — The Company accounts for business combinations using the acquisition method which requires it to estimate the fair value of identifiable assets acquired and liabilities assumed, including any contingent consideration, to properly allocate the purchase price to the individual assets acquired and liabilities assumed in accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 805, Business Combinations . A substantial portion of the purchase price is typically allocated to goodwill and other intangible assets, which usually include customer relationships, software, trade names, and assembled workforce. The allocation of the purchase price utilizes significant estimates in determining the fair values of identifiable assets acquired and liabilities assumed, especially with respect to intangible assets. The significant estimates and assumptions used include the timing and amount of forecasted revenues and cash flows, anticipated growth rates, customer attrition rates, the discount rate reflecting the risk inherent in future cash flows and the useful lives for finite-lived assets. There are different valuation models for each component, the selection of which requires considerable judgment. These determinations will affect the amount of amortization expense recognized in future periods. The Company bases its fair value estimates on assumptions it believes are reasonable but recognizes that the assumptions are inherently uncertain. If the initial accounting for the business combination has not been completed by the end of the reporting period in which the business combination occurs, provisional amounts are reported to present information about facts and circumstances that existed as of the acquisition date. Once the measurement period ends, which in no case extends beyond one year from the acquisition date, revisions to the accounting for the business combination are recorded in earnings. In some business combinations, the Company agrees to contingent consideration arrangements and the Company determines the fair value of contingent consideration using Monte Carlo simulations (which involve a simulation of future revenues and earnings during the earn-out period using management’s best estimates) or probability-weighted expected return methods. Changes in financial projections, market risk assumptions, discount rates or probability assumptions related to achieving the various earn-out criteria would result in a change in the fair value of contingent consideration. Such changes in the fair value of contingent consideration arrangements that are not measurement period adjustments are recorded within Interest and other income, net in the Company’s consolidated statements of income. All acquisition-related costs, other than the costs to issue debt or equity securities, are accounted for as expenses in the period in which they are incurred. Long-Lived Assets — Long-lived assets, such as property and equipment and finite-lived intangible assets, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. When the carrying value of an asset is more than the sum of the undiscounted expected future cash flows, an impairment is recognized. An impairment loss is measured as the excess of the asset’s carrying amount over its fair value. Intangible assets that have finite useful lives are amortized over their estimated useful lives on a straight-line basis. Goodwill and Other Indefinite-Lived Intangible Assets — Goodwill and other intangible assets that have indefinite useful lives are accounted for in accordance with FASB ASC 350, Intangibles — Goodwill and Other . The Company conducts its evaluation of goodwill impairment at the reporting unit level on an annual basis as of October 31st, and more frequently if events or circumstances indicate that the carrying value of a reporting unit exceeds its fair value. A reporting unit is an operating segment or one level below. The Company does not have intangible assets other than goodwill that have indefinite useful lives. Derivative Financial Instruments — The Company enters into derivative financial instruments to manage exposure to fluctuations in certain foreign currencies. The Company measures these foreign currency derivative contracts at fair value on a recurring basis utilizing Level 2 inputs and recognizes them as either assets or liabilities in its consolidated balance sheets. The Company records changes in the fair value of these hedges in accumulated other comprehensive loss until the forecasted transaction occurs. When the forecasted transaction occurs, the Company reclassifies the related gain or loss on the cash flow hedge to cost of revenues (exclusive of depreciation and amortization). In the event the underlying forecasted transaction does not occur, or it becomes probable that it will not occur, the Company reclassifies the gain or loss on the underlying hedge into income. If the Company does not elect hedge accounting, or the contract does not qualify for hedge accounting treatment, the changes in fair value from period to period are recorded in income. The cash flow impact of derivatives identified as hedging instruments is reflected as cash flows from operating activities. The cash flow impact of derivatives not identified as hedging instruments is reflected as cash flows from investing activities. Fair Value of Financial Instruments — The Company makes assumptions about fair values of its financial assets and liabilities in accordance with FASB ASC Topic 820, Fair Value Measurement , and utilizes the following fair value hierarchy in determining inputs used for valuation: Level 1 — Quoted prices for identical assets or liabilities in active markets. Level 2 — Inputs other than quoted prices within Level 1 that are observable either directly or indirectly, including quoted prices in markets that are not active, quoted prices in active markets for similar assets or liabilities, and observable inputs other than quoted prices such as interest rates or yield curves. Level 3 — Unobservable inputs reflecting management’s view about the assumptions that market participants would use in pricing the asset or liability. Where the fair values of financial assets and liabilities recorded in the consolidated balance sheets cannot be derived from an active market, they are determined using a variety of valuation techniques. These valuation techniques include a net present value technique, comparison to similar instruments with market observable inputs, option pricing models and other relevant valuation models. To the extent possible, observable market data is used as inputs into these models but when it is not feasible, a degree of judgment is required to establish fair values. Changes in the fair value of liabilities could cause a material impact to, and volatility in the Company’s operating results. See Note 5 “Fair Value Measurements.” Leases — The Company determines if an arrangement is a lease or contains a lease at inception. The Company performs an assessment and classifies the lease as either an operating lease or a financing lease at the lease commencement date with a right-of-use asset and a lease liability recognized in the consolidated balance sheet under both classifications. The Company does not have finance leases that are material to the Company’s consolidated financial statements. Lease liabilities are initially measured at the present value of lease payments not yet paid. The present value is determined by applying the readily determinable rate implicit in the lease or, if not available, the incremental borrowing rate of the lessee. The Company determines the incremental borrowing rate of the lessee on a lease-by-lease basis by developing an estimated centralized U.S. dollar borrowing rate for a fully collateralized obligation with a term similar to the lease term and adjusts the rate to reflect the incremental risk associated with the foreign currency in which the lease is denominated. The development of this estimate includes the use of recovery rates, U.S. risk-free rates, foreign currency/country base rate yields, and a synthetic corporate credit rating of the Company developed using regression analysis. Lease agreements of the Company may include options to extend or terminate the lease and the Company includes such options in the lease term when it is reasonably certain that the Company will exercise that option. Right-of-use assets are recognized based on the initial measurement of the lease liabilities plus initial direct costs less lease incentives and, according to the guidance for long-lived assets, right-of-use assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Lease expense for operating leases is recognized on a straight-line basis over the lease term. The Company elected a practical expedient to account for lease and non-lease components together as a single lease component. The Company also elected the short-term lease recognition exemption for all classes of lease assets with an original term of twelve months or less. Accumulated Other Comprehensive Loss — Accumulated other comprehensive loss consists of changes in the cumulative foreign currency translation adjustments and actuarial gains and losses on defined benefit pension plans. In addition, the Company enters into foreign currency exchange contracts, which are designated as cash flow hedges in accordance with FASB ASC Topic 815, Derivatives and Hedging. Changes in the fair values of these foreign currency exchange contracts are recognized in Accumulated other comprehensive loss on the Company's consolidated balance sheets until the settlement of those contracts. Revenue Recognition — The Company recognizes revenue in accordance with ASC 606 which requires entities to recognize revenue to depict the transfer of promised goods or services in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services as well as requires additional disclosure about the nature, amount, timing and uncertainty of revenues and cash flows arising from client contracts, including significant judgments and changes in judgments. The Company recognizes revenues when control of goods or services is passed to a client in an amount that reflects the consideration the Company expects to be entitled to in exchange for those goods or services. Such control may be transferred over time or at a point in time depending on satisfaction of obligations stipulated by the contract. Consideration expected to be received may consist of both fixed and variable components and is allocated to each separately identifiable performance obligation based on the performance obligation’s relative standalone selling price. Variable consideration usually takes the form of volume-based discounts, service level credits, price concessions or incentives. Determining the estimated amount of such variable consideration involves assumptions and judgment that can have an impact on the amount of revenues reported. The Company derives revenues from a variety of service arrangements, which have been evolving to provide more customized and integrated solutions to clients by combining software engineering with client experience design, business consulting and technology innovation services. Fees for these contracts may be in the form of time-and-materials or fixed-price arrangements. The Company generates the majority of its revenues under time-and-material contracts, which are billed using hourly, daily or monthly rates to determine the amounts to be charged directly to the client. The Company applies a practical expedient and revenues related to time-and-material contracts are recognized based on the right to invoice for services performed. Fixed-price contracts include maintenance and support arrangements which may exceed one year in duration. Maintenance and support arrangements generally relate to the provision of ongoing services and revenues for such contracts are recognized ratably over the expected service period. Fixed-price contracts also include application development arrangements, where progress towards satisfaction of the performance obligation is measured using input or output methods and input methods are used only when there is a direct correlation between hours incurred and the end product delivered. Assumptions, risks and uncertainties inherent in the estimates used to measure progress could affect the amount of revenues, receivables and deferred revenues at each reporting period. Revenues from licenses which have significant stand-alone functionality are recognized at a point in time when control of the license is transferred to the client. Revenues from licenses which do not have stand-alone functionality are recognized over time. If there is an uncertainty about the receipt of payment for the services, revenue recognition is deferred until the uncertainty is sufficiently resolved. The Company applies a practical expedient and does not assess the existence of a significant financing component if the period between transfer of the service to a client and when the client pays for that service is one year or less. The Company reports gross reimbursable “out-of-pocket” expenses incurred as both revenues and cost of revenues in the consolidated statements of income and comprehensive income. Cost of Revenues (Exclusive of Depreciation and Amortization) — Consists principally of salaries, bonuses, fringe benefits, stock-based compensation, and project-related travel costs for our delivery professionals and fees for subcontractors who are assigned to client projects. Salaries and other compensation expenses of our delivery professionals are reported as cost of revenues regardless of whether the employees are actually performing services for clients during a given period. Additionally, government incentives and assistance related to services performed by delivery professionals and contractors assigned to client projects are reported in cost of revenues. Selling, General and Administrative Expenses — Consists of expenses associated with promoting and selling the Company’s services and general and administrative functions of the business. These expenses include the costs of salaries, bonuses, fringe benefits, stock-based compensation, severance, bad debt, travel, legal and accounting services, insurance, facilities including operating leases, advertising and other promotional activities. Additionally, selling, general and administrative expenses contain costs of relocating our employees and various one-time expenses such as impairment charges. Stock-Based Compensation — The Company recognizes the cost of its equity settled stock-based incentive awards based on the fair value of the award at the date of grant, net of estimated forfeitures. The fair value of these awards at the date of grant is generally based on the grant-date price of the company's shares. The grant date fair value for stock options and stock purchase rights under the 2021 Employee Stock Purchase Plan (”ESPP”) is estimated using the Black-Scholes option-pricing valuation model. The cost is generally expensed evenly over the service period, unless otherwise specified by the award agreement. The service period is the period over which the employee performs the related services, which is normally the same as the vesting period. Equity-based awards that do not require future service are expensed immediately. For awards with performance conditions, the amount of compensation cost we recognize over the requisite service period is based on the actual or expected achievement of the performance condition. Quarterly, the forfeiture assumption is adjusted to reflect actual forfeitures and such adjustment may affect the timing of recognition of the total amount of expense recognized over the vesting period. Stock-based awards that do not meet the criteria for equity classification are recorded as liabilities and adjusted to fair value at the end of each reporting period. Government Assistance Programs and Incentives — The Company benefits from various government incentives in some countries where it operates in the form of cash grants or refundable tax credits. The eligibility to receive such assistance and amounts to be granted are determined based on regulations issued by the relevant government authorities. The incentives are generally based on qualifying expenditures or subject to achieving certain employment and investment targets. As there is no authoritative guidance under U.S. GAAP for government assistance to for-profit business entities, the Company accounts for government assistance by analogy to International Accounting Standards 20 ("IAS 20"), Accounting for Government Grants and Disclosure of Government Assistance . In accordance with IAS 20, the Company recognizes the benefits from government assistance when it has reasonable assurance it will comply with the terms of the assistance and the assistance will be received. Income Taxes — The provision for income taxes includes federal, state, local and foreign taxes. Deferred tax assets and liabilities are recognized for the estimated future tax consequences of temporary differences between the financial statement carrying amounts and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the year in which the temporary differences are expected to be reversed. Changes to enacted tax rates would result in either increases or decreases in the provision for income taxes in the period of changes. The realizability of deferred tax assets is primarily dependent on future earnings. The Company evaluates the realizability of deferred tax assets and recognizes a valuation allowance when it is more likely than not that all, or a portion of, deferred tax assets will not be realized. A reduction in estimated forecasted results may require that we record valuation allowances against deferred tax assets. Once a valuation allowance has been established, it will be maintained until there is sufficient positive evidence to conclude that it is more likely than not that the deferred tax assets will be realized. A pattern of sustained profitability will generally be considered as sufficient positive evidence to reverse a valuation allowance. If the allowance is reversed in a future period, the income tax provision will be correspondingly reduced. Accordingly, the increase and decrease of valuation allowances could have a significant negative or positive impact on future earnings. The United States subjects corporations to taxes on Global Intangible Low-Taxed Income (“GILTI”) earned by certain foreign subsidiaries. The Company elected to provide for the tax expense related to GILTI in the year the tax is incurred. Earnings per Share (“EPS”) — Basic EPS is computed by dividing income available to common shareholders by the weighted average number of shares of common stock outstanding during the period. Diluted earnings per share is computed by dividing income available to common shareholders by the weighted average number of shares of common stock outstanding during the period, increased by the number of additional shares of common stock that would have been outstanding if the potentially dilutive securities had been issued. Potentially dilutive securities include outstanding stock options, unvested restricted stock, unvested restricted stock units (“RSUs”) and the stock to be issued under the ESPP. The dilutive effect of potentially dilutive securities is reflected in diluted earnings per share by application of the treasury stock method. Foreign Currency Translation and Remeasurement — Assets and liabilities of consolidated foreign subsidiaries whose functional currency is not the U.S. dollar are translated into U.S. dollars at period-end exchange rates and revenues and expenses are translated into U.S. dollars at average monthly exchange rates. The adjustment resulting from translating the financial statements of such foreign subsidiaries into U.S. dollars is reflected as a cumulative translation adjustment and reported as a component of Accumulated other comprehensive loss. For consolidated foreign subsidiaries whose functional currency is not the local currency, transactions and balances denominated in the local currency are foreign currency transactions. Foreign currency transactions and balances related to non-monetary assets and liabilities are remeasured to the functional currency of the subsidiary at historical exchange rates while monetary assets and liabilities are remeasured to the functional currency of the subsidiary at period-end exchange rates. Foreign currency exchange gains or losses from remeasurement are included in income in the period in which they occur. Risks and Uncertainties — As a result of its global operations, the Company may be subject to certain inherent risks. Concentration of Credit — Financial instruments that potentially subject the Company to concentration of credit risk consist primarily of cash, cash equivalents, short-term investments and trade receivables. The Company maintains cash, cash equivalents and short-term investments with financial institutions. The Company believes its credit policies reflect normal industry terms and business risk and there is no expectation of non-performance by the counterparties. The Company has cash in several countries, including Ukraine and Belarus, where the banking sector remains subject to periodic instability; banking and other financial systems generally do not meet the banking standards of more developed markets; and bank deposits made by corporate entities are not insured. As of December 31, 2024, the Company had $41.1 million of cash and cash equivalents in banks in Ukraine and $37.5 million of cash and cash equivalents in banks in Belarus. The Company regularly monitors cash held in these countries and, to the extent the cash held exceeds amounts required to support its operations in these countries, the Company distributes the excess funds into markets with more developed banking sectors to the extent it is possible to do so. In April 2024, Belarus instituted new restrictions on distributing dividends from Belarus to shareholders in certain countries, including the U.S. The restrictions are initially scheduled to remain in place until the end of 2025 and may prevent EPAM from distributing excess funds, if any, out of Belarus. The Company does not expect these new restrictions to have a material impact on its ability to meet its worldwide cash obligations during this period. The Company places its cash and cash equivalents with financial institutions considered stable in the region, limits the amount of credit exposure with any one financial institution and conducts ongoing evaluations of the credit worthiness of the financial institutions with which it does business. However, a banking crisis, bankruptcy or insolvency of banks that process or hold the Company’s funds, or sanctions may result in the loss of deposits or adversely affect the Company’s ability to complete banking transactions, which could adversely affect the Company’s business and financial condition. Trade receivables are generally dispersed across many clients operating in different industries; therefore, concentration of credit risk is limited. Historically, credit losses and write-offs of trade receivables have not been material to the consolidated financial statements. If the Company’s clients enter bankruptcy protection or otherwise take steps to alleviate their financial distress, the Company’s credit losses and write-offs of trade receivables could increase, which would negatively impact its results of operations. Foreign currency risk — The Company’s global operations are conducted predominantly in U.S. dollars. Other than U.S. dollars, the Company generates revenues in various currencies, principally, euros, British pounds, Swiss francs and Canadian dollars and incurs expenditures principally in euros, Indian rupees, Polish zlotys, British pounds, Swiss francs, Hungarian forints, Mexican pesos, Colombian pesos, Canadian dollars, Chinese yuan renminbi and Armenian drams. The Company’s international operations expose it to risk of adverse fluctuations in foreign currency exchange rates through the remeasurement of foreign currency denominated assets and liabilities (both third-party and intercompany) and translation of earnings and cash flows into U.S. dollars. The Company has a hedging program whereby it enters into a series of foreign exchange forward contracts with durations of twelve months or less that are designated as cash flow hedges of forecasted Polish zloty, Indian rupee, Hungarian forint and Mexican peso transactions. See Note 6 “Derivative Financial Instruments ” for further information on the Company’s hedging program. Interest rate risk — The Company is exposed to market risk from changes in interest rates. Exposure to interest rate risk results primarily from variable rates related to cash and cash equivalent deposits, short-term investments and the Company’s borrowings, mainly under the 2021 Credit Agreement, which is subject to a variety of rates depending on the type and timing of funds borrowed (See Note 10 “Debt”). The Company does not believe it is exposed to material direct risks associated with changes in interest rates related to these deposits, investments and borrowings. Adoption of New Accounting Standards Unless otherwise discussed below, the adoption of new accounting standards did not have a material impact on the Company’s consolidated financial statements. Segment Reporting - Improvements to Reportable Segment Disclosures — In November 2023, the FASB issued Accounting Standard Update (“ASU”) No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. The update is intended to improve reportable segment disclosures, primarily through enhanced disclosures about significant segment expenses. The update is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted and requires retrospective application to all prior periods presented in the financial statements. The Company adopted this guidance in the fourth quarter of 2024, retrospectively applied to all prior periods presented in the financial statements. The adoption did not have a material impact on the previously reported consolidated financial statements. See Note 19 “Segment Information” for additional information. Pending Accounting Standards From time to time, new accounting pronouncements are issued by the FASB or other standards-setting bodies that the Company will adopt according to the various timetables the FASB specifies. Unless otherwise discussed below, the Company believes the impact of recently issued standards that are not yet effective will not have a material impact on its consolidated financial statements upon adoption. Income Taxes - Improvements to Income Tax Disclosures — In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures , which requires disclosure of disaggregated income taxes paid, prescribes standard categories for the components of the effective tax rate reconciliation, and modifies other income tax-related disclosures. The new guidance is effective for annual periods beginning after December 15, 2024, with early adoption permitted and may be applied prospectively or retrospectively. The Company intends to adopt this ASU for the year ended December 31, 2025 and is still assessing the effect this guidance may have on its consolidated financial statement disclosures. Income Statement - Disaggregation of Income Statement Expenses — In November 2024, the FASB issued ASU No. 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses.

IMPACT OF THE INVASION OF UKRAI

IMPACT OF THE INVASION OF UKRAINE	12 Months Ended
	Dec. 31, 2024
Discontinued Operations and Disposal Groups [Abstract]
IMPACT OF THE INVASION OF UKRAINE	IMPACT OF THE INVASION OF UKRAINE On February 24, 2022, Russian forces attacked Ukraine and its people, and through the issuance date of these financial statements, there has been no resolution to this attack. As of December 31, 2024, the Company had $58.9 million of Property and equipment, net in Ukraine consisting of a building classified as construction-in-progress located in Kyiv with a net book value of $52.3 million, laptops with a net book value of $3.4 million, most of which are in the possession of employees, various office furniture, equipment and supplies with a net book value of $2.8 million, and leasehold improvements located throughout Ukraine with a net book value of $0.4 million. Additionally, as of December 31, 2024, the Company had Operating lease right-of-use assets located throughout Ukraine with a net book value of $4.5 million. Through the issuance date of these financial statements, the Company is not aware of any damage to its long-lived assets in Ukraine and the Company expects to continue to use these assets as part of its global delivery model. On March 4, 2022, the Company announced a $100 million humanitarian commitment to support its employees and their families in and displaced from Ukraine. This humanitarian commitment is in addition to donations from EPAM's clients and employees and the work of EPAM volunteers on the ground and the Company’s spending under this commitment included special cash payments to support impacted employees, financial and medical support for impacted families, and donations to third-party humanitarian organizations. During the years ended December 31, 2024, 2023 and 2022, the Company expensed $13.2 million, $17.4 million and $44.8 million, respectively, related to this commitment. Of the expensed amount for the years ended December 31, 2024, 2023 and 2022, $2.4 million, $11.3 million and $29.0 million, respectively, is classified in Cost of revenues (exclusive of depreciation and amortization) and $10.8 million, $6.1 million and $15.8 million, respectively, is classified in Selling, general and administrative expense on the consolidated financial statements. As of December 31, 2024, the Company has $24.6 million remaining to be expensed related to this humanitarian commitment. Following the invasion, the Company executed its business continuity plans to assist relocating employees residing in Ukraine and the surrounding region, who were impacted by the war and geopolitical uncertainty, to other countries and to assign delivery personnel in locations outside of the region to serve in unbilled standby or backup capacities to ensure the continuity of delivery for its clients who have substantial delivery exposure to Ukraine or other delivery concerns resulting from the invasion and ongoing war. In addition to costs incurred as part of EPAM’s humanitarian commitment to Ukraine, during the years ended December 31, 2024, 2023 and 2022, the Company incurred no expenses, $9.4 million and $14.7 million of expenses, respectively, related to the standby resources, classified in Cost of revenues (exclusive of depreciation and amortization) as well as expenses of $0.8 million, $1.8 million, $38.7 million, respectively, related to its geographic repositioning efforts, classified in Selling, general and administrative expenses. During the year ended December 31, 2022, the Company also recorded an impairment charge of $1.3 million, classified in Interest and other income, net related to a financial asset in Ukraine which the Company believed to be unrealizable due to the events in Ukraine. In response to the attacks on Ukraine, EPAM announced on March 4, 2022, it would discontinue services to customers located in Russia. Based on this change in facts and circumstances, the long-term cash flow forecast for the Company’s operations in Russia and its Russia reporting unit were significantly reduced. The reduction in the long-term cash flow forecasts indicated that the carrying amounts of goodwill and long-lived assets associated with the Company’s Russia reporting unit and operations in Russia may not be recoverable, and the carrying value of these assets was tested for impairment. The Company relied on the income approach to estimate the fair values of the Russia reporting unit and long-lived assets and considered multiple scenarios including the continuing operation and exit of operations in Russia. Reflecting the negative long-term cash flow forecasts that each of these scenarios produced for these assets, during the three months ended March 31, 2022, the Company recorded impairments of Property and equipment, net Additionally, the Company evaluated trade receivables and contract assets for estimated future credit losses from customers located in Russia and recorded bad debt expense of $5.1 million reflecting the deterioration of creditworthiness of its customers in Russia during the year ended December 31, 2022. Amounts recorded to bad debt expense during the year ended December 31, 2023 related to customers located in Russia were not material. Also, during the year ended December 31, 2022, t he Com pany incurred employee separation costs of $17.1 million i n connection with the decision to exit its operations in Russia, with no such cost s incurred during the year ended December 31, 2023. Bad debt expense and employee separation costs are included in Selling, general and administrative expenses in the consolidated statements of income. loss on sale

ACQUISITIONS

ACQUISITIONS	12 Months Ended
	Dec. 31, 2024
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]
ACQUISITIONS	ACQUISITIONS First Derivative — On December 2, 2024, the Company acquired First Derivative Ltd (together with its subsidiaries, “First Derivative”) for a purchase price of $300.7 million. First Derivative is a Northern Ireland-headquartered managed services and consulting business for the capital markets industry with major delivery capability in the U.K., Ireland, North America and APAC. NEORIS — On November 1, 2024, the Company acquired 99.7% of the outstanding shares of Neoris N.V. (together with its subsidiaries, “NEORIS”) for a purchase price of $626.3 million. NEORIS is a global advanced technology consultancy with approximately 4,800 professionals across major talent hubs in Latin America, Spain and the U.S. NEORIS specializes in delivering complex digital engagement and transformation projects for clients in the Americas and Europe. The following table summarizes the estimated fair values of the assets acquired and liabilities assumed as of the date of each respective acquisition: First Derivative NEORIS Cash and cash equivalents $ 9,160 $ 63,470 Trade receivables and contract assets 46,678 79,550 Prepaid and other current assets 10,491 8,225 Goodwill 170,443 406,756 Intangible assets 124,809 259,000 Property and equipment and other noncurrent assets 3,595 22,240 Total assets acquired $ 365,176 $ 839,241 Accounts payable, accrued expenses and other current liabilities $ 32,016 $ 126,791 Other noncurrent liabilities 32,451 84,743 Total liabilities assumed $ 64,467 $ 211,534 Noncontrolling interest in consolidated subsidiaries — 1,358 Net assets acquired $ 300,709 $ 626,349 For the acquisitions of First Derivative and NEORIS, the estimated fair values of the assets acquired and liabilities assumed are provisional and based on the information that was available as of the acquisition dates. The Company expects to complete the purchase price allocations as soon as practicable but no later than one year from each acquisition date. As of December 31, 2024, the following table presents the estimated fair values and useful lives of intangible assets acquired from First Derivative and NEORIS: First Derivative NEORIS Weighted Average Useful Life (in years) Amount Weighted Average Useful Life (in years) Amount Customer relationships 8 $ 118,441 8 $ 249,000 Trade names 5 6,368 5 10,000 Total $ 124,809 $ 259,000 The goodwill recognized as a result of the First Derivative acquisition is attributable to synergies expected to be achieved by enhancing EPAM’s industry experience and jointly delivering a comprehensive set of AI-enabled capabilities in the financial services vertical, expected future contracts, the assembled workforce acquired and other factors. The goodwill recognized as a result of the NEORIS acquisition is attributable to synergies expected to be achieved by expanding the Company’s ability to support clients across Latin America, expected future contracts, the assembled workforce acquired and other factors. The goodwill recognized as a result of these acquisitions is not expected to be deductible for income tax purposes . During the year ended December 31, 2024, the Company recognized acquisition-related costs associated with the First Derivative and NEORIS acquisitions totaling $6.3 million and $7.8 million, respectively. These costs are included in Selling, general and administrative expenses in the accompanying consolidated statement of income. During the year ended December 31, 2024, revenues generated by First Derivative and NEORIS included in the Company’s consolidated statement of income totaled $12.2 million and $53.7 million, respectively. Net income from First Derivative and NEORIS since the date of acquisition was not material. Pro forma results of operations have not been presented for First Derivative because the effect of the acquisition on the Company’s consolidated financial statements was not material. Pro Forma Results of Operations for NEORIS The following unaudited pro forma combined financial information is based on the historical consolidated financial statements of the Company and NEORIS after giving effect to the Company’s acquisition as if the acquisition occurred on January 1, 2023. The following unaudited pro forma financial information is presented for informational purposes only and is not necessarily indicative of the results of operations that the Company would have reported had the transaction occurred at the beginning of these periods nor is it necessarily indicative of future results of operations. The following table presents the unaudited consolidated pro forma results of operations for the years ended December 31, 2024 and 2023: Year Ended December 31, 2024 Year Ended December 31, 2023 Revenues $ 5,015,157 $ 5,013,488 Net income $ 407,200 $ 399,973 Other 2024 Acquisitions - During the year ended December 31, 2024, the Company completed three additional acquisitions with a total purchase price of $74.2 million including contingent consideration with acquisition-date fair value of $9.8 million. These acquisitions expanded EPAM’s geographical reach across Latin America and Europe, enhanced its capabilities in Life Sciences analytics, as well as added $20.3 million of intangible assets, consisting mainly of customer relationships. Revenues generated by the Other 2024 Acquisitions totaled $32.6 million during the year ended December 31, 2024. Pro forma results of operations have not been presented because the effect of these acquisitions on the Company’s consolidated financial statements was not material individually or in the aggregate. 2023 Acquisitions — During the year ended December 31, 2023, the Company completed two acquisitions with a total purchase price of $42.6 million including contingent consideration with acquisition-date fair value of $14.9 million. These acquisitions expanded EPAM’s capabilities in software design and product development, as well as added $13.9 million of intangible assets, consisting of customer relationships. Revenues generated by these 2023 Acquisitions totaled $8.2 million during the year ended December 31, 2023. Pro forma results of operations have not been presented because the effect of these acquisitions on the Company’s consolidated financial statements was not material individually or in the aggregate. 2022 Acquisitions — During the year ended December 31, 2022, the Company completed two acquisitions with a total purchase price of $13.6 million including contingent consideration with acquisition-date fair value of $2.6 million. These acquisitions expanded EPAM’s capabilities to deliver end-to-end solutions for designing and building sophisticated commerce platforms, provided opportunities for geographic expansion as well as added $3.4 million of intangible assets, consisting of customer relationships. Revenues generated by these 2022 Acquisitions totaled $8.7 million during the year ended December 31, 2022. Pro forma results of operations have not been presented because the effect of these acquisitions on the Company’s consolidated financial statements was not material individually or in the aggregate.

GOODWILL AND INTANGIBLE ASSETS,

GOODWILL AND INTANGIBLE ASSETS, NET	12 Months Ended
	Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND INTANGIBLE ASSETS, NET	GOODWILL AND INTANGIBLE ASSETS, NET Goodwill by reportable segment was as follows: North America Europe Total Balance as of January 1, 2023 $ 216,960 $ 312,112 $ 529,072 2023 Acquisitions 24,477 — 24,477 2022 Acquisitions purchase accounting adjustments — 87 87 Effect of net foreign currency exchange rate changes 423 8,400 8,823 Balance as of December 31, 2023 $ 241,860 $ 320,599 $ 562,459 NEORIS acquisition 333,538 73,218 406,756 First Derivative acquisition 35,793 134,650 170,443 Other 2024 Acquisitions 40,529 12,926 53,455 2023 Acquisitions purchase accounting adjustments 861 — 861 Effect of net foreign currency exchange rate changes (515) (11,884) (12,399) Balance as of December 31, 2024 $ 652,066 $ 529,509 $ 1,181,575 There were no accumulated goodwill impairment losses in the North America or Europe reportable segments as of December 31, 2024, 2023 or 2022. Intangible assets other than goodwill as of December 31, 2024 and 2023 were as follows: As of December 31, 2024 Weighted average life at acquisition (in years) Gross carrying amount Accumulated amortization Net Customer relationships 8 $ 547,552 $ (128,148) $ 419,404 Trade names 5 26,468 (10,017) 16,451 Software 5 5,942 (5,656) 286 Contract royalties 8 1,900 (1,623) 277 Total $ 581,862 $ (145,444) $ 436,418 As of December 31, 2023 Weighted average life at acquisition (in years) Gross carrying amount Accumulated amortization Net Customer relationships 8 $ 171,735 $ (103,651) $ 68,084 Trade names 4 10,798 (9,588) 1,210 Software 6 6,134 (4,825) 1,309 Contract royalties 8 1,900 (1,385) 515 Total $ 190,567 $ (119,449) $ 71,118 All of the intangible assets other than goodwill have finite lives and as such are subject to amortization. Amortization of the other intangible assets is recognized in Depreciation and amortization expense in the consolidated statements of income. The following table presents amortization expense recognized for the periods indicated: For the Years Ended December 31, 2024 2023 2022 Customer relationships $ 26,798 $ 19,855 $ 18,946 Trade names 1,437 1,522 1,909 Software 1,002 1,102 1,086 Contract royalties 238 238 238 Assembled workforce — — 44 Total $ 29,475 $ 22,717 $ 22,223 Based on the carrying value of the Company’s existing intangible assets as of December 31, 2024, the estimated amortization expense for the future years is as follows: Year ending December 31, Amount 2025 $ 68,591 2026 64,529 2027 60,519 2028 54,424 2029 52,367 Thereafter 135,988 Total $ 436,418

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	12 Months Ended
	Dec. 31, 2024
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	FAIR VALUE MEASUREMENTS The Company carries certain assets and liabilities at fair value on a recurring basis on its consolidated balance sheets. The Company had no material financial assets measured at fair value on a recurring basis as of December 31, 2024. The following table shows the fair values of the Company’s financial liabilities measured at fair value on a recurring basis as of December 31, 2024: As of December 31, 2024 Balance Level 1 Level 2 Level 3 Foreign exchange derivative liabilities $ 14,650 $ — $ 14,650 $ — Contingent consideration 32,978 — — 32,978 Total liabilities measured at fair value on a recurring basis $ 47,628 $ — $ 14,650 $ 32,978 The following table shows the fair values of the Company’s financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2023. As of December 31, 2023 Balance Level 1 Level 2 Level 3 Foreign exchange derivative assets $ 10,416 $ — $ 10,416 $ — Total assets measured at fair value on a recurring basis $ 10,416 $ — $ 10,416 $ — Foreign exchange derivative liabilities $ 248 $ — $ 248 $ — Contingent consideration 23,150 — — 23,150 Total liabilities measured at fair value on a recurring basis $ 23,398 $ — $ 248 $ 23,150 The foreign exchange derivatives are valued using pricing models and discounted cash flow methodologies based on observable foreign exchange data at the measurement date. See Note 6 “Derivative Financial Instruments” for additional information regarding derivative financial instruments. The fair value of the contingent consideration liabilities for acquisitions was determined using a probability-weighted expected return method and is based on the expected future payments to be made to the sellers of the acquired businesses in accordance with the provisions outlined in the respective purchase agreements. Although there is significant judgment involved, the Company believes its estimates and assumptions are reasonable. In determining fair value, the Company considered a variety of factors, including future performance of the acquired businesses using financial projections developed by the Company and market risk assumptions that were derived for revenue growth and earnings before interest and taxes. The Company estimated future payments using the earnout formula and performance targets specified in the purchase agreements and adjusted those estimates to reflect the probability of their achievement. Those weighted average estimated future payments were then discounted to present value using a rate based on the weighted average cost of capital of guideline companies. The discount rate used to determine the fair value of assumed contingent consideration for the NEORIS acquisition was 18%. The discount rates used to determine the fair value of contingent consideration for the Other 2024 Acquisitions ranged from a minimum of 12% to a maximum of 20%. The discount rate used to determine the fair value of contingent consideration for the 2023 Acquisitions was 16.0%. The discount rate used to determine the fair value of contingent consideration for the 2022 Acquisitions ranged from a minimum of 13.0% to a maximum of 15.0%. Changes in financial projections, market risk assumptions, discount rates or probability assumptions related to achieving the various earnout criteria would result in a change in the fair value of the recorded contingent liabilities. Such changes, if any, are recorded within Interest and other income, net in the Company’s consolidated statements of income. A reconciliation of the beginning and ending balances of Level 3 contingent consideration liabilities using significant unobservable inputs for the years ended December 31, 2022, December 31, 2023, and December 31, 2024 are as follows: Amount Contingent consideration liabilities as of January 1, 2022 $ 23,114 Acquisition date fair value of contingent consideration — 2022 Acquisitions 2,645 Changes in fair value of contingent consideration included in Interest and other income, net 11,101 Payment of contingent consideration for previously acquired businesses (11,328) Effect of net foreign currency exchange rate changes (1,224) Contingent consideration liabilities as of December 31, 2022 $ 24,308 Acquisition date fair value of contingent consideration — 2023 Acquisitions 14,850 Changes in fair value of contingent consideration included in Interest and other income, net 2,814 Payment of contingent consideration for previously acquired businesses (18,844) Effect of net foreign currency exchange rate changes 22 Contingent consideration liabilities as of December 31, 2023 $ 23,150 Acquisition date fair value of assumed contingent consideration — NEORIS 4,654 Acquisition date fair value of contingent consideration — Other 2024 Acquisitions 9,755 Changes in fair value of contingent consideration included in Interest and other income, net 5,699 Payment of contingent consideration for previously acquired businesses (10,125) Effect of net foreign currency exchange rate changes (155) Contingent consideration liabilities as of December 31, 2024 $ 32,978 Financial Assets and Liabilities Not Measured at Fair Value on a Recurring Basis The following tables present the estimated fair values of the Company’s financial assets and liabilities not measured at fair value on a recurring basis as of the dates indicated: Fair Value Hierarchy Balance Estimated Fair Value Level 1 Level 2 Level 3 December 31, 2024 Financial Assets: Cash equivalents: Money market funds $ 5,200 $ 5,200 $ 5,200 $ — $ — Time deposits 16,907 16,907 — 16,907 — Total cash equivalents $ 22,107 $ 22,107 $ 5,200 $ 16,907 $ — Financial Liabilities: Borrowings under 2021 Credit Agreement $ 25,000 $ 25,000 $ — $ 25,000 $ — Deferred consideration for asset acquisition $ 33,187 $ 33,187 $ — $ 33,187 $ — Fair Value Hierarchy Balance Estimated Fair Value Level 1 Level 2 Level 3 December 31, 2023 Financial Assets: Cash equivalents: Money market funds $ 168,120 $ 168,120 $ 168,120 $ — $ — Time deposits 105,210 105,210 — 105,210 — Total cash equivalents $ 273,330 $ 273,330 $ 168,120 $ 105,210 $ — Time deposits included in Short-term investments $ 60,739 $ 60,739 $ — $ 60,739 $ — Financial Liabilities: Borrowings under 2021 Credit Agreement $ 25,000 $ 25,000 $ — $ 25,000 $ — Deferred consideration for asset acquisition $ 46,954 $ 46,954 $ — $ 46,954 $ — Non-Marketable Securities Without Readily Determinable Fair Values The Company holds investments in equity securities that do not have readily determinable fair values. These investments are recorded at cost and are remeasured to fair value based on certain observable price changes or impairment events as they occur. The carrying amount of these investments was $38.5 million and $31.7 million as of December 31, 2024 and December 31, 2023, respectively and is classified as Other noncurrent assets in the Company’s consolidated balance sheets.

DERIVATIVE FINANCIAL INSTRUMENT

DERIVATIVE FINANCIAL INSTRUMENTS	12 Months Ended
	Dec. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE FINANCIAL INSTRUMENTS	DERIVATIVE FINANCIAL INSTRUMENTS In the normal course of business, the Company uses derivative financial instruments to manage the risk of fluctuations in foreign currency exchange rates. The Company has a hedging program whereby it enters into a series of foreign exchange forward contracts with durations of twelve months or less that are designated as cash flow hedges of forecasted Polish zloty, Indian rupee, Hungarian forint, and Mexican peso transactions. During the three months ended March 31, 2022, in response to the invasion of Ukraine, the Company de-designated its Russian ruble foreign exchange forward contracts as hedges and entered into offsetting foreign exchange forward contracts with the same counterparty. The Company determined it was probable the underlying forecasted foreign currency transactions which were hedged would not occur and reclassified the accumulated loss of $43.9 million on the underlying hedges into income which is classified as foreign exchange loss in the consolidated statement of income. As of December 31, 2023, all of the Company’s Russian ruble foreign exchange forwards contracts had settled. The Company measures derivative instruments and hedging activities at fair value and recognizes them as either assets or liabilities in its consolidated balance sheets. Accounting for the gains and losses resulting from changes in fair value depends on the use of the derivative and whether it is designated and qualifies for hedge accounting. To receive hedge accounting treatment, all hedging relationships are formally documented at the inception of the hedge, and the hedges must be highly effective in offsetting changes to future cash flows on hedged transactions. As of December 31, 2024, all of the Company’s foreign exchange forward contracts were designated as hedges. Derivatives may give rise to credit risks from the possible non-performance by counterparties. The Company has limited its credit risk by entering into derivative transactions only with highly rated financial institutions and by conducting an ongoing evaluation of the creditworthiness of the financial institutions with which the Company does business. There is no financial collateral (including cash collateral) required to be posted by the Company related to the foreign exchange forward contracts. The fair value of foreign currency derivative instruments on the Company’s consolidated balance sheets as of December 31, 2024 and December 31, 2023 were as follows: As of December 31, 2024 As of December 31, 2023 Balance Sheet Classification Asset Derivatives Liability Derivatives Asset Derivatives Liability Derivatives Foreign exchange forward contracts - Prepaid expenses and other current assets $ — $ 10,416 Accrued expenses and other current liabilities $ 14,650 $ 248

PROPERTY AND EQUIPMENT, NET

PROPERTY AND EQUIPMENT, NET	12 Months Ended
	Dec. 31, 2024
Property, Plant and Equipment [Abstract]
PROPERTY AND EQUIPMENT, NET	PROPERTY AND EQUIPMENT, NET Property and equipment, net consisted of the following: Weighted Average Useful Life As of December 31, 2024 As of December 31, 2023 Computer hardware 4 $ 146,966 $ 155,991 Purchased computer software 4 91,630 88,644 Buildings 46 55,057 54,899 Leasehold improvements 7 39,278 37,189 Furniture, fixture and other equipment 7 21,191 22,583 Office equipment 7 18,394 18,315 Land improvements 18 2,137 2,142 Land n/a 1,339 1,339 Construction in progress n/a 52,264 51,477 428,256 432,579 Less: accumulated depreciation and amortization (220,589) (197,526) Total $ 207,667 $ 235,053 Depreciation and amortization expense related to property and equipment was $59.4 million, $68.2 million and $69.0 million during the years ended December 31, 2024, 2023 and 2022, respectively. The Company has assets which generate lease income including subleases of portions of its office space to third parties. The gross amount of such assets was $10.6 million and $5.9 million, and the associated accumulated depreciation was $4.0 million and $1.9 million as of December 31, 2024 and 2023, respectively. Depreciation expense associated with these assets held under operating leases was $0.8 million, $0.5 million and $0.1 million for the year ended December 31, 2024, 2023 and 2022, respectively. The Company owns buildings located in Belarus, which are used in the Company’s normal operations as office space for its employees. On November 17, 2021, the Company acquired an office building in the process of being constructed in Kyiv, Ukraine for $50.1 million. Once completed, the acquired building is intended to be used in the Company’s normal operations as office space for its employees. The office building is classified as construction-in-progress as of December 31, 2024 and, due to Russia’s invasion of Ukraine, it is uncertain when this office building will be available for its intended use. See Note 2 “Impact of the Invasion of Ukraine” for more information regarding the assets in Ukraine. During the year ended December 31, 2022, the Company completed an asset acquisition of software licenses for use in the regular course of business for a purchase price of $66.1 million, which included an upfront payment of $13.3 million and fixed deferred consideration, payable in annual installments, with an acquisition-date fair value of $52.8 million. To estimate fair value, the future payments were discounted to present value using a discount rate based on the estimated borrowing rate of the Company. The weighted average discount rate used to determine the acquisition-date fair value was 5.2%. During the year ended December 31, 2023, this agreement was amended resulting in the derecognition of $20.8 million of software license assets, net of accumulated depreciation, and $21.4 million of deferred consideration liability. As part of the amendment, the Company purchased new software licenses for use in the regular course of business for a purchase price of $26.7 million, which included an upfront payment of $6.8 million and fixed deferred consideration, payable in annual installments, with an acquisition-date fair value of $19.9 million. To estimate fair value, the future payments were discounted to present value using a discount rate based on the estimated borrowing rate of the Company. The weighted average discount rate used to determine the acquisition-date fair value was 5.5%. During the year ended December 31, 2024, this agreement was further amended resulting in the derecognition of $1.2 million of software license assets, net of accumulated depreciation, and $1.2 million of deferred consideration liability. See Note 18 “Commitments and Contingencies” for more information regarding the deferred consideration.

ACCRUED EXPENSES AND OTHER CURR

ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES	12 Months Ended
	Dec. 31, 2024
Payables and Accruals [Abstract]
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES	ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES Accrued expenses and other current liabilities consisted of the following: As of December 31, 2024 As of December 31, 2023 Deferred revenue $ 59,321 $ 27,988 Value added taxes payable 43,739 39,852 Contingent consideration, current (Note 5) 14,660 9,650 Foreign exchange derivative liabilities 14,650 248 Other current liabilities and accrued expenses 68,986 47,085 Total $ 201,356 $ 124,823

LEASES

LEASES	12 Months Ended
	Dec. 31, 2024
Leases [Abstract]
LEASES	LEASES The Company leases office space, corporate apartments, office equipment, and vehicles. Many of the Company’s leases contain variable payments including changes in base rent and charges for common area maintenance or other miscellaneous expenses. Due to this variability, the cash flows associated with these variable payments are not included in the minimum lease payments used in determining the right-of-use assets and associated lease liabilities and are recognized in the period in which the obligation for such payments is incurred. The Company’s leases have remaining lease terms ranging from 0.1 to 7.1 years. Certain lease agreements, mainly for office space, include options to extend or terminate the lease before the expiration date. The Company considers such options when determining the lease term when it is reasonably certain that the Company will exercise that option. The Company leases and subleases a portion of its office space to third parties. Lease income and sublease income were not material for the years ended December 31, 2024, 2023 and 2022. See Note 2 “Impact of the Invasion of Ukraine” for discussion of impairment of right-of-use assets in Russia. During the years ended December 31, 2024, 2023 and 2022, the components of lease expense were as follows: Income Statement Classification Year Ended December 31, 2024 Year Ended December 31, 2023 Year Ended December 31, 2022 Operating lease cost Selling, general and administrative expenses $ 43,524 $ 47,824 $ 51,775 Variable lease cost Selling, general and administrative expenses 10,912 13,156 10,372 Short-term lease cost Selling, general and administrative expenses 3,785 5,602 5,289 Total lease cost $ 58,221 $ 66,582 $ 67,436 Supplemental cash flow information related to leases for the years ended December 31, 2024 and 2023 were as follows: Year Ended December 31, 2024 Year Ended December 31, 2023 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used for operating leases $ 45,640 $ 52,373 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 23,771 $ 18,063 Non-cash net increase/ (decrease) due to lease modifications: Operating lease right-of-use assets $ 13,522 $ 7,595 Operating lease liabilities $ 13,557 $ 9,198 Weighted average remaining lease terms and discount rates as of December 31, 2024 and 2023, were as follows: As of December 31, 2024 As of December 31, 2023 Weighted average remaining lease term, in years: Operating leases 4.3 5.0 Weighted average discount rate: Operating leases 4.3 % 4.1 % As of December 31, 2024, operating lease liabilities will mature as follows: Year ending December 31, Lease Payments 2025 $ 44,455 2026 35,972 2027 26,118 2028 20,855 2029 11,765 Thereafter 10,968 Total lease payments 150,133 Less: imputed interest (12,073) Total $ 138,060 There were no lease agreements that contained material restrictive covenants or material residual value guarantees as of December 31, 2024. There were no material lease agreements signed with related parties as of December 31, 2024. As of December 31, 2024, the Company had committed to payments of $2.5 million related to operating lease agreements that had not yet commenced as of December 31, 2024. These operating leases will commence on various dates during 2025 with lease terms ranging from 1 to 3 years. The Company does not have any material finance lease agreements that had not yet commenced.

DEBT

DEBT	12 Months Ended
	Dec. 31, 2024
Debt Disclosure [Abstract]
DEBT	DEBT Revolving Credit Facility — On October 21, 2021, the Company replaced its 2017 credit facility with a new unsecured credit agreement (the “2021 Credit Agreement”) with PNC Bank, National Association; PNC Capital Markets LLC; Citibank N.A.; Wells Fargo Bank, National Association; Santander Bank, N.A.; and Raiffeisen Bank International AG (collectively the “Lenders”). The 2021 Credit Agreement provides for a revolving credit facility (the “2021 Revolving Facility”) with a borrowing capacity of $700.0 million, with the potential to increase the borrowing capacity up to $1,000.0 million if certain conditions are met. The 2021 Credit Agreement matures on October 21, 2026. Borrowings under the 2021 Revolving Facility may be denominated in U.S. dollars or up to a maximum of $150.0 million equivalent in British pounds sterling, Canadian dollars, euros or Swiss francs and other currencies as may be approved by the administrative agent and the Lenders. Borrowings under the 2021 Revolving Facility bear interest at either a base rate or Euro-rate plus a margin based on the Company’s leverage ratio. The base rate is equal to the highest of (a) the Overnight Bank Funding Rate, plus 0.5%, (b) the Prime Rate, or (c) the Daily Simple SOFR Rate, plus 1.0%, so long as the Daily Simple SOFR Rate is offered, ascertainable and not unlawful. As of December 31, 2024, the Company’s outstanding borrowings are subject to a SOFR-based interest rate, which resets regularly at issuance, based on lending terms. The 2021 Credit Agreement includes customary business and financial covenants that may restrict the Company’s ability to make or pay dividends (other than certain intercompany dividends) if a potential or an actual event of default has occurred or would be triggered. As of December 31, 2024, the Company was in compliance with all covenants contained in the 2021 Credit Agreement. The following table presents the outstanding debt and borrowing capacity of the Company under the 2021 Credit Agreement as of December 31, 2024 and 2023: As of December 31, 2024 As of December 31, 2023 Outstanding debt $ 25,000 $ 25,000 Interest rate 5.4 % 6.3 % Available borrowing capacity $ 675,000 $ 675,000 Maximum borrowing capacity $ 700,000 $ 700,000

PENSION AND POSTRETIREMENT BENE

PENSION AND POSTRETIREMENT BENEFITS	12 Months Ended
	Dec. 31, 2024
Retirement Benefits [Abstract]
PENSION AND POSTRETIREMENT BENEFITS	PENSION AND POSTEMPLOYMENT BENEFITS Defined Contribution Plans The Company offers defined contribution plans for its employees in certain countries including a 401(k) retirement plan covering substantially all of the Company’s U.S. employees. Employer contributions charged to expense for defined contribution benefit plans for the years ended December 31, 2024, 2023 and 2022, were $31.5 million, $31.4 million, and $29.0 million, respectively. Defined Benefit Plans The Company sponsors defined benefit pension and postemployment plans for its employees in certain countries as governed by local regulatory requirements. During the years ended December 31, 2024, 2023, and 2022, the Company recorded expense of $9.0 million, $9.4 million and $8.3 million, respectively, related to these plans. As of December 31, 2024 and 2023, the amounts recognized in the Company's consolidated balance sheets for the Company's defined benefit plans, all of which were underfunded, were as follows: As of As of Liabilities recognized: Accrued compensation and benefits expenses $ 2,105 $ 998 Other noncurrent liabilities 27,472 14,912 Unfunded status $ 29,577 $ 15,910

COST OPTIMIZATION PROGRAMS

COST OPTIMIZATION PROGRAMS	12 Months Ended
	Dec. 31, 2024
Restructuring and Related Activities [Abstract]
COST OPTIMIZATION PROGRAMS	COST OPTIMIZATION PROGRAMS During the quarter ended June 30, 2024, the Company initiated the 2024 Cost Optimization Program to streamline operations and optimize corporate functions. This program is expected to include workforce reductions and contract terminations. The Company expects to complete all restructuring actions commenced under the 2024 Cost Optimization Program by the end of the second quarter of 2025 and to incur additional charges of approximately $7.0 million. The actual amount and timing of severance and other costs are dependent in part upon local country consultation processes and regulations and may differ from our current expectations and estimates. During the quarter ended September 30, 2023, the Company initiated the 2023 Cost Optimization Program to streamline operations and optimize corporate functions. This program included workforce reduction and closure of underutilized facilities. As of June 30, 2024, the Company completed all restructuring actions commenced under the 2023 Cost Optimization Program. The total costs related to the Cost Optimization Programs are classified in Selling, general and administrative expenses in the consolidated statements of income. The Company did not allocate these charges to individual segments as they are not considered by the chief operating decision maker during the review of segment results. Accordingly, such expenses are presented in our segment reporting as part of “Other unallocated expenses” (See Note 19 “Segment Information”). Activity in the Company’s restructuring reserves for the year ended December 31, 2024 was as follows: Balance at December 31, 2023 Charges Payments Made Balance at December 31. 2024 2024 Cost Optimization Program Employee separation costs $ — $ 21,969 $ (20,206) $ 1,763 Contract termination charges — 286 (286) — 2023 Cost Optimization Program Employee separation costs 6,966 9,015 (15,981) — Total $ 6,966 $ 31,270 $ (36,473) $ 1,763 Activity in the Company’s restructuring reserves for the year ended December 31, 2023 was as follows: Balance at December 31, 2022 Charges Payments Made Balance at December 31. 2023 2023 Cost Optimization Program Employee separation costs $ — $ 28,990 $ (22,024) $ 6,966 Total $ — $ 28,990 $ (22,024) $ 6,966 The charges reflected in the above activity of the restructuring reserves do not include 2023 Cost Optimization Program charges recorded directly to expenses during the year ended December 31, 2023, including facility exit costs of $6.1 million, as these charges were not recorded in the restructuring reserves on the consolidated balance sheet. Facility exit costs generally reflect the accelerated rent expense for ROU assets, expected lease termination costs, or costs that will continue to be incurred under the facility lease without future economic benefit to the Company.

REVENUES

REVENUES	12 Months Ended
	Dec. 31, 2024
Revenue from Contract with Customer [Abstract]
REVENUES	REVENUES Revenues are sourced from four geographic markets: Americas, EMEA, APAC, and CEE. The Company presents and discusses revenues by client location based on the location of the specific client site that it serves, irrespective of the location of the headquarters of the client or the location of the delivery center where the work is performed. Revenues by client location is different from revenues by reportable segment as segments are not based on the geographic location of the clients, but instead they are based on the location of the Company’s management responsible for a particular client or market (see Note 19 “Segment Information”). The Company assigns clients into one of five main industries or a group of various industries where the Company is increasing its presence, which is labeled as “Emerging Verticals.” Emerging Verticals include clients in multiple industries such as energy, utilities, industrial materials, manufacturing, automotive, telecommunications and several others. Disaggregation of Revenues The following tables present the disaggregation of the Company’s revenues by major client location, including a reconciliation of the disaggregated revenues with the Company’s reportable segments (Note 19 “Segment Information”) for the years ended December 31, 2024, 2023 and 2022: Year Ended December 31, 2024 Reportable Segments North America Europe Consolidated Revenues Client Locations Americas (1) $ 2,726,757 $ 107,947 $ 2,834,704 EMEA (2) 137,370 1,655,828 1,793,198 APAC (3) 2,212 97,826 100,038 CEE (4) — — — Revenues $ 2,866,339 $ 1,861,601 $ 4,727,940 (1) Americas includes revenues from clients in North, Central and South America. (2) EMEA includes revenues from clients in Western Europe and the Middle East. (3) APAC, or Asia Pacific, includes revenues from clients in East Asia, Southeast Asia and Australia. (4) CEE includes revenues from clients in Belarus, Georgia, Kazakhstan, Russia, Ukraine and Uzbekistan. As a result of the sale of the Company’s remaining holdings in Russia to a third-party on July 26, 2023, revenues from the CEE region are no longer material. Beginning in 2024, revenues from the CEE region are included in the EMEA region. Year Ended December 31, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Client Locations Americas $ 2,645,174 $ 96,857 $ 631 $ 2,742,662 EMEA 116,054 1,706,728 — 1,822,782 APAC 3,248 98,890 — 102,138 CEE 546 6,968 15,444 22,958 Revenues $ 2,765,022 $ 1,909,443 $ 16,075 $ 4,690,540 Year Ended December 31, 2022 Reportable Segments North America Europe Russia Consolidated Revenues Client Locations Americas $ 2,792,156 $ 92,244 $ 2,804 $ 2,887,204 EMEA 95,706 1,642,114 99 1,737,919 APAC 3,837 116,533 — 120,370 CEE 6,855 2,165 70,185 79,205 Revenues $ 2,898,554 $ 1,853,056 $ 73,088 $ 4,824,698 The following tables present the disaggregation of the Company’s revenues by industry vertical, including a reconciliation of the disaggregated revenues with the Company’s reportable segments (Note 19 “Segment Information”) for the years ended December 31, 2024, 2023 and 2022: Year Ended December 31, 2024 Reportable Segments North America Europe Consolidated Revenues Industry Verticals Financial Services $ 519,986 $ 502,631 $ 1,022,617 Consumer Goods, Retail & Travel (1) 450,162 562,976 1,013,138 Software & Hi-Tech 525,091 177,276 702,367 Business Information & Media 449,449 225,148 674,597 Life Sciences & Healthcare 488,455 86,150 574,605 Emerging Verticals 433,196 307,420 740,616 Revenues $ 2,866,339 $ 1,861,601 $ 4,727,940 Year Ended December 31, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Industry Verticals Financial Services $ 538,837 $ 472,146 $ 7,450 $ 1,018,433 Consumer Goods, Retail & Travel (1) 472,350 596,830 3,770 1,072,950 Software & Hi-Tech 552,492 153,683 1,545 707,720 Business Information & Media 429,800 323,985 196 753,981 Life Sciences & Healthcare 429,245 60,549 120 489,914 Emerging Verticals 342,298 302,250 2,994 647,542 Revenues $ 2,765,022 $ 1,909,443 $ 16,075 $ 4,690,540 Year Ended December 31, 2022 Reportable Segments North America Europe Russia Consolidated Revenues Industry Verticals Financial Services $ 522,970 $ 460,858 $ 42,858 $ 1,026,686 Consumer Goods, Retail & Travel (1) 505,227 571,437 15,560 1,092,224 Software & Hi-Tech 655,122 136,273 1,866 793,261 Business Information & Media 467,664 341,344 944 809,952 Life Sciences & Healthcare 454,102 52,465 800 507,367 Emerging Verticals 293,469 290,679 11,060 595,208 Revenues $ 2,898,554 $ 1,853,056 $ 73,088 $ 4,824,698 (1) The Company renamed the Travel & Consumer vertical to Consumer Goods, Retail & Travel to better reflect the mix of clients included in this vertical. This constitutes a naming change only and no changes were made to amounts reported. The Company derives revenues from a variety of customized and integrated service arrangements. These contracts may be in the form of time-and-materials or fixed-price arrangements. The following tables present the disaggregation of the Company’s revenues by contract type, including a reconciliation of the disaggregated revenues with the Company’s reportable segments (Note 19 “Segment Information”) for the years ended December 31, 2024, 2023 and 2022: Year Ended December 31, 2024 Reportable Segments North America Europe Consolidated Revenues Contract Types Time-and-material $ 2,423,554 $ 1,477,398 $ 3,900,952 Fixed-price 419,361 377,870 797,231 Licensing and other revenues 23,424 6,333 29,757 Revenues $ 2,866,339 $ 1,861,601 $ 4,727,940 Year Ended December 31, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Contract Types Time-and-material $ 2,457,545 $ 1,613,790 $ 11,168 $ 4,082,503 Fixed-price 283,183 291,174 4,873 579,230 Licensing and other revenues 24,294 4,479 34 28,807 Revenues $ 2,765,022 $ 1,909,443 $ 16,075 $ 4,690,540 Year Ended December 31, 2022 Reportable Segments North America Europe Russia Consolidated Revenues Contract Types Time-and-material $ 2,615,213 $ 1,578,786 $ 45,581 $ 4,239,580 Fixed-price 263,603 269,669 27,195 560,467 Licensing and other revenues 19,738 4,601 312 24,651 Revenues $ 2,898,554 $ 1,853,056 $ 73,088 $ 4,824,698 Timing of Revenue Recognition The following tables present the revenues disaggregated by timing of revenue recognition and reconciled with the Company’s reportable segments (Note 19 “Segment Information”) for the years ended December 31, 2024, 2023 and 2022: Year Ended December 31, 2024 Reportable Segments North America Europe Consolidated Revenues Timing of Revenue Recognition Transferred over time $ 2,851,319 $ 1,857,303 $ 4,708,622 Transferred at a point of time 15,020 4,298 19,318 Revenues $ 2,866,339 $ 1,861,601 $ 4,727,940 Year Ended December 31, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Timing of Revenue Recognition Transferred over time $ 2,751,937 $ 1,907,010 $ 16,042 $ 4,674,989 Transferred at a point of time 13,085 2,433 33 15,551 Revenues $ 2,765,022 $ 1,909,443 $ 16,075 $ 4,690,540 Year Ended December 31, 2022 Reportable Segments North America Europe Russia Consolidated Revenues Timing of Revenue Recognition Transferred over time $ 2,888,342 $ 1,849,011 $ 72,795 $ 4,810,148 Transferred at a point of time 10,212 4,045 293 14,550 Revenues $ 2,898,554 $ 1,853,056 $ 73,088 $ 4,824,698 During the years ended December 31, 2024, 2023 and 2022 the Company recognized $13.6 million, $5.8 million and $7.5 million, respectively, of revenues from performance obligations satisfied in previous periods. The following table includes the estimated revenues expected to be recognized in the future related to performance obligations that are partially or fully unsatisfied as of December 31, 2024. The Company applies a practical expedient and does not disclose the value of unsatisfied performance obligations for contracts that (i) have an original expected duration of one year or less and (ii) contracts for which it recognizes revenues at the amount to which it has the right to invoice for services provided: Less than 1 year 1 Year 2 Years 3 Years Total Contract Type Fixed-price $ 30,223 $ 2,629 $ — $ — $ 32,852 The Company applies a practical expedient and does not disclose the amount of the transaction price allocated to the remaining performance obligations nor provide an explanation of when the Company expects to recognize that amount as revenue for certain variable consideration. Contract Balances The following table provides information on the classification of contract assets and liabilities in the consolidated balance sheets: As of December 31, 2024 As of December 31, 2023 Contract assets included in Trade receivables and contract assets, net $ 52,897 $ 24,309 Contract liabilities included in Accrued expenses and other current liabilities $ 59,321 $ 27,988 Contract liabilities included in Other noncurrent liabilities $ 741 $ 951 Contract assets comprise amounts where the Company’s right to bill is contingent on something other than the passage of time. Contract assets have increased from December 31, 2023 primarily due to the timing of revenue recognition ahead of billing milestones in contracts where the Company’s right to bill is contingent upon achievement of contractual milestones. Contract liabilities comprise amounts collected from the Company's clients for revenues not yet earned and such amounts are anticipated to be recorded as revenues when services are performed in subsequent periods. Contract liabilities have increased from December 31, 2023, primarily due to higher levels of advance collections at the end of the year as well as contracts attributable to businesses acquired in 2024. During the year ended December 31, 2024, the Company recognized $21.3 million of revenues that were included in Accrued expenses and other current liabilities at December 31, 2023. During the year ended December 31, 2023, the Company recognized $30.6 million of revenues that were included in Accrued expenses and other current liabilities at December 31, 2022.

POLAND RESEARCH AND DEVELOPMENT

POLAND RESEARCH AND DEVELOPMENT INCENTIVES	12 Months Ended
	Dec. 31, 2024
Research and Development Expense [Abstract]
POLAND RESEARCH AND DEVELOPMENT INCENTIVES	POLAND RESEARCH AND DEVELOPMENT INCENTIVES During the third quarter of 2024, the Company determined it was eligible for research and development (“R&D”) tax relief in Poland which allows the Company to reduce its tax base through bonus deductions for specific costs, such as salaries and social security contributions for employees working on R&D projects. The Company is able to utilize the tax relief by first offsetting its corporate income tax liability and then, to the extent the tax relief exceeds its corporate income tax liability, reducing future remittances of personal income tax withholding for qualified employees. During the year ended December 31, 2024, the Company determined it was probable it would receive government incentives of $23.5 million related to R&D activities completed during the year ended December 31, 2023 and $45.4 million related to R&D activities completed during the year ended December 31, 2024, which were recorded as a reduction to Cost of revenues in the consolidated statements of income for the year ended December 31, 2024. As of December 31, 2024, $23.1 million of benefits were included in Prepaid and other current assets and $34.3 million of benefits were included in Other noncurrent assets on the consolidated balance sheet related to the Poland R&D incentive.

STOCKHOLDERS_ EQUITY

STOCKHOLDERS’ EQUITY	12 Months Ended
	Dec. 31, 2024
Share-Based Payment Arrangement [Abstract]
STOCKHOLDERS’ EQUITY	STOCKHOLDERS’ EQUITY Stock-Based Compensation The following costs related to the Company’s stock compensation plans were included in the consolidated statements of income: For the Years Ended December 31, 2024 2023 2022 Cost of revenues (exclusive of depreciation and amortization) $ 80,944 $ 68,797 $ 47,470 Selling, general and administrative expenses 86,353 78,933 52,439 Total $ 167,297 $ 147,730 $ 99,909 Equity Plans The Company has long-term incentive plans under which 2.345 million shares of common stock are available for issuance to Company personnel and 499 thousand shares of common stock are available for issuance to non-employee directors as of December 31, 2024. All of the awards issued pursuant to the long-term incentive plans expire 10 years from the date of grant. In addition, the Company maintains an Employee Stock Purchase Plan (“ESPP”) to enable eligible employees to purchase shares of EPAM’s common stock at a discount through payroll deductions of up to 10% of their eligible compensation at the end of each designated offering period, which occurs every six months ending April 30th and October 31st. The purchase price is equal to 85% of the fair market value of a share of EPAM’s common stock on the first date of an offering or the date of purchase, whichever is lower. As of December 31, 2024, 426 thousand shares of common stock remained available for issuance under the ESPP. Stock Options Stock option activity under the Company’s long-term incentive plans is set forth below: Number of Weighted Average Aggregate Weighted Average Options outstanding as of January 1, 2022 2,318 $ 77.79 $ 1,369,132 Options granted 133 $ 277.85 Options exercised (514) $ 44.02 Options forfeited (11) $ 350.19 Options expired (3) $ 128.11 Options outstanding as of December 31, 2022 1,923 $ 98.92 $ 447,503 Options granted 114 $ 295.73 Options exercised (397) $ 39.01 Options forfeited (6) $ 316.91 Options expired (5) $ 340.13 Options outstanding as of December 31, 2023 1,629 $ 125.88 $ 289,552 Options granted 81 $ 296.87 Options exercised (483) $ 46.71 Options forfeited (16) $ 297.52 Options expired (5) $ 371.84 Options outstanding as of December 31, 2024 1,206 $ 165.78 $ 112,839 3.8 Options vested and exercisable as of December 31, 2024 973 $ 133.49 $ 112,814 2.7 Options expected to vest as of December 31, 2024 225 $ 300.46 $ 24 8.2 The fair value of each option award is estimated on the date of grant using the Black-Scholes option valuation model. The model incorporated the following weighted average assumptions: For the Years Ended December 31, 2024 2023 2022 Expected volatility 52.1 % 50.2 % 46.7 % Expected term (in years) 6.25 6.23 6.24 Risk-free interest rate 4.3 % 3.6 % 2.6 % Expected dividends — % — % — % Expected volatility is based on the historical volatility of the Company’s stock price. The expected term represents the period of time that options granted are expected to be outstanding. The risk-free rate is based on the U.S. Treasury yield curve for the periods equal to the expected term of the options in effect at the time of grant. The Company has not declared or paid any dividends on its common stock and does not anticipate paying any dividends in the foreseeable future. The weighted average grant-date fair value of stock options granted during the years ended December 31, 2024, 2023 and 2022 was $164.47, $156.11 and $134.29, respectively. The total intrinsic value of options exercised during the years ended December 31, 2024, 2023 and 2022 was $113.3 million, $89.8 million and $154.4 million, respectively. The Company recognizes the fair value of each option as compensation expense on a straight-line basis over the requisite service period, which is generally the vesting period. The options are typically scheduled to vest over four years from the time of grant, subject to the terms of the applicable plan and stock option agreement. The Company records share-based compensation expense only for those awards that are expected to vest and as such, the Company applies an estimated forfeiture rate at the time of grant and adjusts the forfeiture rate estimate quarterly to reflect actual forfeiture activity. In general, in the event of a participant’s voluntary termination of service, unvested options are forfeited as of the date of such termination without any payment to the participant and the cumulative amount of previously recognized expense related to the forfeited options is reversed. As of December 31, 2024, $16.8 million of total remaining unrecognized compensation cost related to unvested stock options, net of estimated forfeitures, is expected to be recognized over a weighted average period of 2.1 years. Restricted Stock and Restricted Stock Units The Company grants restricted stock units (“RSUs”) to Company personnel and non-employee directors. In addition, the Company has issued in the past, and may issue in the future, equity awards to compensate employees of acquired businesses for future services. Equity settled awards granted in connection with acquisitions of businesses may be issued in the form of service-based awards requiring continuing employment with the Company, restricted stock subject to trading restrictions, and performance-based awards, which would vest only if certain specified performance and service conditions are met. The awards issued in connection with acquisitions of businesses are subject to the terms and conditions contained in the applicable award agreements and acquisition documents. Service-Based Awards The table below summarizes activity related to the Company’s equity-classified and liability-classified service-based awards for the years ended December 31, 2024, 2023 and 2022: Equity-Classified Equity-Classified Equity-Settled Restricted Stock Units Liability-Classified Cash-Settled Restricted Stock Units Number of Shares Weighted Average Grant Date Number of Shares Weighted Average Grant Date Number of Shares Weighted Average Grant Date Unvested service-based awards outstanding as of January 1, 2022 9 $ 167.18 576 $ 277.38 112 $ 217.28 Awards granted — $ — 655 $ 287.13 51 $ 269.60 Awards modified — $ — (3) $ 387.74 3 $ 220.00 Awards vested (9) $ 167.18 (244) $ 235.96 (56) $ 184.96 Awards forfeited — $ — (68) $ 328.81 (11) $ 260.59 Unvested service-based awards outstanding as of December 31, 2022 — $ — 916 $ 291.19 99 $ 257.74 Awards granted — $ — 607 $ 288.49 36 $ 298.81 Awards modified — $ — (15) $ 278.52 15 $ 305.59 Awards vested — $ — (329) $ 278.25 (46) $ 242.07 Awards forfeited — $ — (105) $ 304.91 (6) $ 254.82 Unvested service-based awards outstanding as of December 31, 2023 — $ — 1,074 $ 292.45 98 $ 287.36 Awards granted — $ — 617 $ 283.21 34 $ 298.35 Awards modified — $ — 1 $ 366.27 (1) $ 114.30 Awards vested — $ — (378) $ 289.48 (39) $ 273.28 Awards forfeited — $ — (102) $ 299.49 (3) $ 295.86 Unvested service-based awards outstanding as of December 31, 2024 — $ — 1,212 $ 288.12 89 $ 298.84 The fair value of vested service-based awards (measured at the vesting date) for the years ended December 31, 2024, 2023 and 2022 was as follows: For the Years Ended December 31, 2024 2023 2022 Equity-classified equity-settled Restricted stock $ — $ — $ 3,990 Restricted stock units 105,100 94,418 69,510 Liability-classified cash-settled Restricted stock units 11,455 13,229 16,238 Total fair value of vested service-based awards $ 116,555 $ 107,647 $ 89,738 As of December 31, 2024, $233.0 million of total remaining unrecognized stock-based compensation costs related to service-based equity-classified RSUs, net of estimated forfeitures, is expected to be recognized over the weighted average remaining requisite service period of 2.5 years. As of December 31, 2024, $14.5 million of total remaining unrecognized stock-based compensation costs related to service-based liability-classified RSUs, net of estimated forfeitures, is expected to be recognized over the weighted average remaining requisite service period of 2.3 years. The liability associated with the Company’s service-based liability-classified RSUs as of December 31, 2024 and 2023 was $4.8 million and $8.7 million, respectively, and is classified as Accrued compensation and benefits expenses in the consolidated balance sheets. Performance-Based Awards The table below summarizes activity related to the Company’s performance-based awards for the years ended December 31, 2024, 2023 and 2022: Equity-Classified Equity-Classified Number of Shares Weighted Average Grant Date Number of Shares Weighted Average Grant Date Unvested performance-based awards outstanding as of January 1, 2022 9 $ 165.87 23 $ 339.69 Awards granted — $ — 6 $ 418.26 Awards vested — $ — (9) $ 238.96 Awards forfeited — $ — (5) $ 377.87 Unvested performance-based awards outstanding as of December 31, 2022 9 $ 165.87 15 $ 412.60 Awards granted — $ — 6 $ 258.19 Awards vested (9) $ 165.87 (7) $ 229.98 Awards forfeited — $ — (1) $ 363.93 Unvested performance-based awards outstanding as of December 31, 2023 — $ — 13 $ 441.87 Awards granted — $ — 54 $ 302.61 Awards vested — $ — (3) $ 560.97 Awards forfeited — $ — (2) $ 546.48 Unvested performance-based awards outstanding as of December 31, 2024 — $ — 62 $ 310.37 In addition, as of December 31, 2024, the Company has issued 42 thousand performance-based equity-classified RSUs which are not considered granted for accounting purposes as the future vesting conditions have not yet been determined and are not reflected in the table above. As of December 31, 2024, $10.4 million of total remaining unrecognized stock-based compensation cost related to performance-based equity-classified RSUs is expected to be recognized over the weighted average remaining requisite service period of 1.6 years. During the three months ended March 31, 2024, the Company granted to its named executive officers and certain other members of senior management performance-based equity-classified RSU awards that vest after 3 years, contingent on meeting certain financial performance targets, market conditions and continued service. The financial performance targets will be set by the Compensation Committee of the Board of Directors at the beginning of each year. For the portion of the awards subject to market conditions, fair value was determined using a Monte Carlo valuation model. There were 32 thousand such awards as of December 31, 2024. The fair value of vested performance-based awards (measured at the vesting date) for the years ended December 31, 2024, 2023 and 2022 was as follows: For the Years Ended December 31, 2024 2023 2022 Equity-classified equity-settled Restricted stock $ — $ 2,237 $ — Restricted stock units 812 1,581 2,914 Total fair value of vested performance-based awards $ 812 $ 3,818 $ 2,914 Employee Stock Purchase Plan The ESPP enables eligible employees to purchase shares of EPAM’s common stock at a discount at the end of each designated offering period, which occurs every six months ending April 30th and October 31st. The Company recognizes compensation expense related to shares issued pursuant to the ESPP on a straight-line basis over the six-months offering period. The Company uses the Black-Scholes option pricing model to calculate the fair value of shares issued under the ESPP. The Black-Scholes model relies on a number of key assumptions to calculate estimated fair values. The model incorporated the following weighted average assumptions for the years ended December 31, 2024, 2023 and 2022: For the Years Ended December 31, 2024 2023 2022 Expected volatility 43.2 % 48.0 % 86.8 % Expected term (in years) 0.50 0.50 0.50 Risk-free interest rate 4.9 % 5.3 % 3.0 % Expected dividends — % — % — % Expected volatility is based on the historical volatility of the Company’s stock price. The expected term represents the purchase period for the ESPP. The risk-free rate is based on the U.S. Treasury yield curve for the period equal to the expected term in effect at the time of grant. The Company has not declared or paid any dividends on its common stock and does not anticipate paying any dividends in the foreseeable future. During the year ended December 31, 2024, the weighted average price per share was $212.17 and the weighted average grant-date fair value per share was $56.34. During the year ended December 31, 2024, the ESPP participants purchased 181 thousand shares of common stock under the ESPP and the Company recognized $10.0 million of stock-based compensation expense related to the ESPP. As of December 31, 2024, total unrecognized stock-based compensation cost related to the ESPP was $3.5 million, which is expected to be recognized over a period of 0.33 years. During the year ended December 31, 2023, the weighted average price per share was $248.23 and the weighted average grant-date fair value per share was $69.74. During the year ended December 31, 2023, the ESPP participants purchased 173 thousand shares of common stock under the ESPP and the Company recognized $12.6 million of stock-based compensation expense related to the ESPP. During the year ended December 31, 2022, the weighted average price per share was $315.60 and the weighted average grant-date fair value per share was $119.76. During the year ended December 31, 2022, the ESPP participants purchased 120 thousand shares of common stock under the ESPP and the Company recognized $13.9 million of stock-based compensation expense related to the ESPP. Share Repurchases On August 1, 2024, the Board of Directors authorized a new share repurchase program (the “2024 Repurchase Program”) for up to $500.0 million of the Company's outstanding common stock. EPAM may repurchase shares of its common stock on a discretionary basis from time to time through open market purchases, privately negotiated transactions or other means, including through the use of trading plans intended to qualify under Rule 10b5-1 under the Securities Exchange Act of 1934, as amended. The timing and total amount of stock repurchases will depend upon business, economic and market conditions, corporate and regulatory requirements, prevailing stock prices, and other considerations. The share repurchase program has a term of 24 months, may be suspended or discontinued at any time, and does not obligate the company to acquire any amount of common stock. Prior to the authorization of the 2024 Repurchase Program, the Company repurchased common stock under a similar repurchase program authorized in 2023 and exhausted the $500.0 million authorized under that program as of June 30, 2024. During the years ended December 31, 2024 and 2023, the Company repurchased 1,854 thousand and 686 thousand shares of its common stock for $398.0 million and $164.9 million, respectively, in cash. All of the repurchased shares have been retired. As of December 31, 2024, a remaining balance of $437.0 million was available for purchases of the Company’s common stock under the 2024 Repurchase Program.

INCOME TAXES

INCOME TAXES	12 Months Ended
	Dec. 31, 2024
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES Income Before Provision for Income Taxes Income before provision for income taxes based on geographic location is disclosed in the table below: For the Years Ended December 31, 2024 2023 2022 Income before provision for income taxes: United States $ 193,031 $ 210,875 $ 78,564 Foreign 391,381 325,710 428,694 Total $ 584,412 $ 536,585 $ 507,258 Provision for Income Taxes The provision for income taxes consists of the following: For the Years Ended December 31, 2024 2023 2022 Current Federal $ 82,920 $ 54,763 $ 20,044 State 13,652 15,922 10,116 Foreign 97,502 86,012 99,847 Deferred Federal (54,772) (20,519) (26,379) State (3,176) (5,206) (3,483) Foreign (6,247) (11,470) (12,303) Total $ 129,879 $ 119,502 $ 87,842 As part of the Tax Cuts and Jobs Act (“U.S. Tax Act”), as determined as of December 31, 2017, the Company was required to make annual installment payments for the one-time transition tax on accumulated foreign subsidiary earnings not previously subject to U.S. income tax at a rate of 15.5% to the extent of foreign cash and certain other net current assets and 8.0% on the remaining earnings. As of December 31, 2024, the remaining unpaid balance of this one-time transition tax was $14.3 million with the final payment due in 2025. As of December 31, 2024, the Company had approximately $1.058 billion of accumulated undistributed foreign earnings that are expected to be indefinitely reinvested. Due to the enactment of the U.S. Tax Act and the one-time transition tax on accumulated foreign subsidiary earnings, these accumulated foreign earnings are no longer expected to be subject to U.S. federal income tax if repatriated but could be subject to state and foreign income and withholding taxes. During 2024, the Company determined that it should no longer consider undistributed foreign earnings that are not expected to be subject to any taxes to be indefinitely reinvested. Effective Tax Rate Reconciliation The reconciliation of the provision for income taxes at the federal statutory income tax rate to the Company’s effective income tax rate is as follows: For the Years Ended December 31, 2024 2023 2022 Provision for income taxes at federal statutory rate $ 122,727 $ 112,690 $ 106,514 Increase/(decrease) in taxes resulting from: GILTI and BEAT U.S. taxes 475 391 355 Excess tax benefits relating to stock-based compensation (22,448) (19,829) (35,119) Foreign tax expense and tax rate differential 17,290 5,208 4,902 Effect of permanent differences (2,488) 4,210 7,812 State taxes, net of federal benefit 12,279 12,347 9,323 Stock-based compensation expense 4,357 5,869 3,869 Impact of election to change entity classification (873) (2,109) (8,264) Tax credits (1,720) (1,824) (2,876) Other 280 2,549 1,326 Provision for income taxes $ 129,879 $ 119,502 $ 87,842 The Company’s worldwide effective tax rate for the years ended December 31, 2024, 2023 and 2022 was 22.2%, 22.3% and 17.3%, respectively. The provision for income taxes in the year ended December 31, 2024 was unfavorably impacted by a charge of $4.1 million resulting from the accounting treatment of government incentives recognized related to conducting R&D activities in Poland and a charge of $3.6 million due to the non-deductibility of certain acquisition costs for tax purposes. In addition, the Company recorded excess tax benefits upon vesting or exercise of stock-based awards of $22.4 million, $19.8 million and $35.1 million during the years ended December 31, 2024, 2023 and 2022, respectively. The Organization for Economic Co-operation and Development issued Pillar Two model rules for a global minimum tax of 15% effective January 1, 2024. While it is uncertain whether the United States will enact legislation to adopt Pillar Two, certain countries in which we operate have adopted legislation, and other countries are in the process of introducing legislation to implement Pillar Two. Pillar Two had no impact on our 2024 effective tax rate, and we do not currently expect Pillar Two to significantly impact our effective tax rate going forward. In Belarus, member technology companies of High-Technologies Park, including the Company’s local subsidiary, have a full exemption from Belarus income tax on qualifying income through January 2049. However, beginning February 1, 2018, the earnings of the Company’s local subsidiary in Belarus became subject to U.S. income taxation due to the Company’s decision to change the tax status of the subsidiary. There was no aggregate dollar benefit derived or impact on diluted net income per share from this tax holiday for the years ended December 31, 2024, 2023 and 2022. Deferred Income Taxes Deferred income taxes reflect the net effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of the Company’s deferred tax assets and liabilities are as follows: As of December 31, 2024 As of December 31, 2023 Deferred tax assets: Property and equipment $ 10,622 $ 13,359 Accrued expenses 99,459 77,757 Accrued sales discounts 10,262 11,148 Stock-based compensation 39,492 36,488 Operating lease liabilities 39,240 40,549 R&D capitalization 121,546 77,601 Deferred consideration 11,278 13,762 Foreign currency exchange 18,290 2,688 Net operating loss carryforward 22,717 12,037 Other 18,806 15,112 Deferred tax assets $ 391,712 $ 300,501 Less: valuation allowance (10,183) (7,622) Total deferred tax assets $ 381,529 $ 292,879 Deferred tax liabilities: Property and equipment $ 11,941 $ 13,590 Intangible assets 126,443 27,914 Operating lease right-of-use assets 39,132 39,551 R&D credit carryforward 4,061 — U.S. taxation of foreign subsidiaries 17,158 13,955 Other 5,357 8,711 Total deferred tax liabilities $ 204,092 $ 103,721 Net deferred tax assets $ 177,437 $ 189,158 As of December 31, 2024 and 2023, the Company classified $92.4 million and $8.7 million, respectively, of deferred tax liabilities as Other noncurrent liabilities in the consolidated balance sheets. Included in the stock-based compensation expense deferred tax asset at December 31, 2024 and 2023 is $3.1 million and $3.9 million, respectively, that is related to acquisitions and is amortized for tax purposes over a 10 to 15-year period. As of December 31, 2024, the Company’s domestic and foreign net operating loss (“NOL”) carryforwards for income tax purposes were approximately $3.7 million and $91.3 million, respectively. If not utilized, a portion of the domestic NOL carryforwards will begin to expire in 2025. The foreign NOL carryforwards may be carried forward indefinitely, with the exception of $14.4 million that will begin to expire on various dates between 2025-2031 if not used. The Company maintains a valuation allowance primarily related to the net operating loss carryforwards in certain foreign jurisdictions that the Company believes are not likely to be realized, which totaled $48.3 million as of December 31, 2024. Unrecognized Tax Benefits As of December 31, 2024 and 2023, the total amount of gross unrecognized tax benefits was $11.5 million in each period. These amounts represent the amount of unrecognized tax benefits that, if recognized, would favorably affect the effective tax rate in future periods and are included in Income taxes payable, noncurrent within the consolidated balance sheets. The Company’s policy is to recognize interest and penalties related to uncertain tax positions as a component of its provision for income taxes. As of December 31, 2024 and 2023, the Company accrued $2.1 million and $1.5 million respectively, of interest and penalties resulting from such unrecognized tax benefits. A reconciliation of the beginning and ending balances of the gross unrecognized tax benefits changes for the years ended December 31, 2024, 2023 and 2022 are as follows: For the Years Ended December 31, 2024 2023 2022 Beginning Balance $ 11,471 $ 7,865 $ 8,155 Increases in tax positions from current year 1,407 3,307 4,739 Increases in tax positions from acquisitions — — 393 Increases in tax positions from prior years 1,043 716 2,447 Decreases in tax positions from prior years (2,251) (47) (6,945) Decreases due to lapse of statute of limitations (86) (438) (1,121) Currency (97) 68 197 Ending Balance $ 11,487 $ 11,471 $ 7,865 There was one tax position from a prior year of $2.4 million, including interest and penalties, for which it was reasonably possible that unrecognized tax benefits will significantly decrease within twelve months of the reporting date due to a lapse of statute of limitations. The Company is subject to taxation in the United States and various states and foreign jurisdictions including Canada, Colombia, Germany, India, Mexico, Netherlands, Poland, Switzerland, Ukraine, and the United Kingdom. With few exceptions, as of December 31, 2024, the Company is no longer subject to U.S. federal, state, local or foreign examinations by tax authorities for years before 2020.

EARNINGS PER SHARE

EARNINGS PER SHARE	12 Months Ended
	Dec. 31, 2024
Earnings Per Share [Abstract]
EARNINGS PER SHARE	EARNINGS PER SHARE Basic earnings per share is computed by dividing net income available to common shareholders by the weighted-average number of shares of common stock outstanding during the period. For purposes of computing basic earnings per share, any unvested shares of restricted stock that have been issued by the Company and are contingently returnable to the Company are excluded from the weighted-average number of shares of common stock outstanding during the period. Diluted earnings per share is computed by dividing net income available to common shareholders by the weighted-average number of shares of common stock outstanding during the period increased to include the number of additional shares of common stock that would have been outstanding if the potentially dilutive securities had been issued. Potentially dilutive securities include outstanding stock options, unvested restricted stock, unvested equity-settled RSUs and the stock to be issued under the Company’s ESPP. The dilutive effect of potentially dilutive securities is reflected in diluted earnings per share by application of the treasury stock method. The following table sets forth the computation of basic and diluted earnings per share of common stock as follows: For the Years Ended December 31, 2024 2023 2022 Numerator for basic and diluted earnings per share: Net income $ 454,533 $ 417,083 $ 419,416 Numerator for basic and diluted earnings per share $ 454,533 $ 417,083 $ 419,416 Denominator: Weighted average common shares for basic earnings per share 57,288 57,829 57,291 Net effect of dilutive stock options, restricted stock units, restricted stock awards and stock issuable under the ESPP 695 1,256 1,878 Weighted average common shares for diluted earnings per share 57,983 59,085 59,169 Net Income per share: Basic $ 7.93 $ 7.21 $ 7.32 Diluted $ 7.84 $ 7.06 $ 7.09

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	12 Months Ended
	Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Indemnification Obligations — In the normal course of business, the Company is a party to a variety of agreements under which it may be obligated to indemnify the other party for certain matters. These obligations typically arise in contracts where the Company customarily agrees to hold the other party harmless against losses arising from a breach of representations or covenants for certain matters, infringement of third-party intellectual property rights, data privacy violations, and certain tortious conduct in the course of providing services. The duration of these indemnifications varies, and in certain cases, is indefinite. The Company is unable to reasonably estimate the maximum potential amount of future payments under these or similar agreements due to the unique facts and circumstances of each agreement and the fact that certain indemnifications provide for no limitation to the maximum potential future payments under the indemnification. Management is not aware of any such matters that would have a material effect on the consolidated financial statements of the Company. Litigation — From time to time, the Company is involved in litigation, claims or other contingencies arising in the ordinary course of business. The Company accrues a liability when a loss is considered probable and the amount can be reasonably estimated. When a material loss contingency is reasonably possible but not probable, the Company does not record a liability but instead discloses the nature and the amount of the claim, and an estimate of the loss or range of loss, if such an estimate can be made. Legal fees are expensed as incurred. In the opinion of management, the outcome of any existing claims and legal or regulatory proceedings, if decided adversely, is not expected to have a material effect on the Company’s business, financial condition, results of operations or cash flows. Ukraine Humanitarian Commitment — On March 4, 2022, EPAM announced that it has established a $100.0 million humanitarian commitment to support its employees in Ukraine and their families. As of December 31, 2024, the Company has $24.6 million remaining to be expensed related to this humanitarian commitment. See Note 2 “Impact of the Invasion of Ukraine” for more information regarding commitments to humanitarian aid for Ukraine. Deferred Consideration — During the year ended December 31, 2022, the Company purchased software licenses for use in the regular course of business in exchange for an upfront payment and fixed, subsequent annual payments due over the next 4 years. This agreement was modified during the years ended December 31, 2023 and 2024. As of December 31, 2024, the undiscounted deferred consideration amounts owed totaled approximately $35.0 million and are expected to be paid as follows: $17.0 million in 2025 and $18.0 million in 2026. See Note 7 “Property and Equipment, Net” for more information regarding the purchase of software licenses. Contractual Commitment — On March 31, 2023, the Company entered into a 5-year agreement for cloud services through which it committed to spending at least $75.0 million over the term of the agreement. As of December 31, 2024, $62.2 million remains to be spent under this contractual commitment. The Company has the ability to cancel the commitment whereby it would incur a cancellation penalty of 20% of the remaining contractual commitment.

SEGMENT INFORMATION

SEGMENT INFORMATION	12 Months Ended
	Dec. 31, 2024
Segment Reporting [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION The Company determines its business segments and reports segment information in accordance with how the Company’s chief operating decision maker (“CODM”) organizes the segments to evaluate performance, allocate resources and make business decisions. The Company’s CODM is the chief executive officer. The Company manages its business primarily based on the managerial responsibility for its client base and market. As managerial responsibility for a particular client relationship generally correlates with the client’s geographic location, there is a high degree of similarity between client locations and the geographic boundaries of the Company’s reportable segments. In some cases, managerial responsibility for a particular client is assigned to a management team in another region and is usually based on the strength of the relationship between client executives and particular members of EPAM’s senior management team. In such cases, the client’s activity would be reported through the management team’s reportable segment. Segment results are based on the segment’s revenues and operating profit, where segment operating profit is defined as segment income from operations before unallocated costs. Expenses included in segment operating profit consist principally of direct selling and delivery costs as well as an allocation of certain shared services expenses. Intersegment transactions are excluded from the segment’s revenues and operating profit on the basis that they are neither included in the measure of a segment’s profit and loss results, nor considered by the CODM during the review of segment results. Certain corporate expenses are not allocated to specific segments as these expenses are not controllable at the segment level. Such expenses include certain types of professional fees, certain taxes included in operating expenses, compensation to non-employee directors and certain other general and administrative expenses, including compensation of specific groups of non-production employees. In addition, the Company does not allocate amortization of intangible assets acquired through business combinations, goodwill and other asset impairment charges, stock-based compensation expenses, acquisition-related costs and certain other one-time charges and benefits. These unallocated amounts are combined with total segment operating profit to arrive at consolidated income from operations as reported below in the reconciliation of segment operating profit to consolidated income before provision for income taxes. Additionally, management has determined that it is not practical to allocate identifiable assets by segment since such assets are used interchangeably among the segments. The Company’s CODM considers the operating results of each segment on a quarterly basis and uses segment operating profit predominantly to assess the performance of each segment by comparing the results of each segment with one another and to historical performance. When combined with certain other financial information, this enables the CODM to make decisions about the reporting structure, allocation of operating and capital resources, and compensation of certain employees. On July 26, 2023, the Company completed the sale of its remaining holdings in Russia to a third party. As a result of this sale, the Company no longer has operations associated with this segment. See Note 2 “Impact of the Invasion of Ukraine” for more information. During the year ended December 31, 2024, the Company revised its CODM report to enhance the presentation of segment expenses by category and to revise the allocation methodology for certain types of shared expenses. The following prior period amounts presented have been revised to align with the current year methodology. No changes were made to historically reported segment revenues. Segment revenues from external clients and segment operating profit, as well as a reconciliation of segment operating profit to consolidated income before provision for income taxes is presented below: For the Year Ended December 31, 2024 North America Europe Total Segment revenues $ 2,866,339 $ 1,861,601 $ 4,727,940 Less: Cost of revenues (exclusive of depreciation and amortization) 1,915,851 1,290,317 3,206,168 Selling, general and administrative expenses 369,055 267,032 636,087 Depreciation and amortization expense 40,009 20,076 60,085 Segment operating profit $ 541,424 $ 284,176 $ 825,600 Unallocated costs: Stock-based compensation expense (167,297) Amortization of purchased intangibles (29,475) Other acquisition-related expenses (15,472) Other unallocated costs (68,772) Income from operations 544,584 Interest and other income, net 46,876 Foreign exchange loss (7,048) Income before provision for income taxes $ 584,412 For the Year Ended December 31, 2023 North America Europe Russia Total Segment revenues $ 2,765,022 $ 1,909,443 $ 16,075 $ 4,690,540 Less: Cost of revenues (exclusive of depreciation and amortization) 1,848,758 1,348,190 18,483 3,215,431 Selling, general and administrative expenses 361,589 285,722 2,531 649,842 Depreciation and amortization expense 43,645 25,307 131 69,083 Segment operating profit/(loss) $ 511,030 $ 250,224 $ (5,070) $ 756,184 Unallocated costs: Stock-based compensation expense (147,730) Amortization of purchased intangibles (22,717) Other acquisition-related expenses (2,768) Loss on sale of business (25,922) Other unallocated costs (55,808) Income from operations 501,239 Interest and other income, net 51,124 Foreign exchange loss (15,778) Income before provision for income taxes $ 536,585 For the Year Ended December 31, 2022 North America Europe Russia Total Segment revenues $ 2,898,554 $ 1,853,056 $ 73,088 $ 4,824,698 Less: Cost of revenues (exclusive of depreciation and amortization) 1,875,861 1,283,398 69,475 3,228,734 Selling, general and administrative expenses 404,276 323,151 16,083 743,510 Depreciation and amortization expense 41,516 27,465 1,068 70,049 Segment operating profit/(loss) 576,901 219,042 (13,538) 782,405 Unallocated costs: Stock-based compensation expense (99,909) Amortization of purchased intangibles (22,223) Other acquisition-related expenses (1,593) Other unallocated costs (85,714) Income from operations 572,966 Interest and other income, net 10,025 Foreign exchange loss (75,733) Income before provision for income taxes $ 507,258 For each reportable segment, selling, general and administrative expenses include the costs of salaries, bonuses, fringe benefits, bad debt, travel, employee relocations, legal and accounting services, insurance, facilities and overhead including operating leases, advertising and other promotional activities. There were no clients individually exceeding 10% of our total segment revenues for the years ended December 31, 2024, 2023 and 2022. See Note 13 “Revenues” for additional disclosures of the Company’s disaggregated revenues reconciled with the revenues from the Company’s reportable segments. Geographic Area Information Long-lived assets include property and equipment, net of accumulated depreciation and amortization, and management has determined that it is not practical to allocate these assets by segment since such assets are used interchangeably among the segments. Physical locations and values of the Company’s long-lived assets are presented below: As of December 31, 2024 As of December 31, 2023 As of December 31, 2022 Ukraine $ 58,865 $ 62,653 $ 70,183 Belarus 45,900 49,875 57,311 United States 39,403 42,510 68,804 India 15,367 12,735 8,506 Poland 10,605 15,057 14,685 Hungary 4,157 6,683 8,552 Other 33,370 45,540 45,307 Total $ 207,667 $ 235,053 $ 273,348 The table below presents the Company’s revenues by client location for the years ended December 31, 2024, 2023 and 2022: For the Years Ended December 31, 2024 2023 2022 United States $ 2,680,063 $ 2,633,730 $ 2,761,050 United Kingdom 523,369 585,172 619,305 Switzerland 407,849 367,121 323,424 Germany 206,129 178,492 161,758 Netherlands 188,576 236,292 215,444 Canada 88,352 97,983 114,910 Russia — 13,290 64,745 Other locations 633,602 578,460 564,062 Revenues $ 4,727,940 $ 4,690,540 $ 4,824,698

ACCUMULATED OTHER COMPREHENSIVE

ACCUMULATED OTHER COMPREHENSIVE LOSS	12 Months Ended
	Dec. 31, 2024
Equity [Abstract]
ACCUMULATED OTHER COMPREHENSIVE LOSS	ACCUMULATED OTHER COMPREHENSIVE LOSS The following table summarizes the changes in the accumulated balances for each component of accumulated other comprehensive loss: For the Years Ended December 31, 2024 2023 2022 Foreign currency translation Beginning balance $ (43,601) $ (101,780) $ (52,747) Foreign currency translation (71,584) 45,035 (45,295) Net loss reclassified into Loss on sale of business — 23,931 — Income tax benefit/(expense) 11,210 (10,787) (3,738) Foreign currency translation, net of tax (60,374) 58,179 (49,033) Ending balance $ (103,975) $ (43,601) $ (101,780) Cash flow hedging instruments Beginning balance $ 7,819 $ 8,306 $ (3,417) Unrealized (loss)/gain in fair value (18,570) 25,352 (49,233) Net (gain)/loss reclassified into Cost of revenues (exclusive of depreciation and amortization) (6,333) (25,695) 20,331 Net loss/(gain) reclassified into Foreign exchange loss 87 (234) 44,067 Income tax benefit/(expense) 5,732 90 (3,442) Cash flow hedging instruments, net of tax (19,084) (487) 11,723 Ending balance (1) $ (11,265) $ 7,819 $ 8,306 Defined benefit plans Beginning balance $ (3,258) $ (1,847) $ 1,957 Actuarial gains/(losses) 1,847 (1,856) (4,892) Income tax (expense)/benefit (213) 445 1,088 Defined benefit plans, net of tax 1,634 (1,411) (3,804) Ending balance $ (1,624) $ (3,258) $ (1,847) Accumulated other comprehensive loss $ (116,864) $ (39,040) $ (95,321) (1) As of December 31, 2024, the ending balance of net unrealized loss related to derivatives designated as cash flow hedges is expected to be reclassified into Cost of revenues (exclusive of depreciation and amortization) in the next twelve months.

VALUATION AND QUALIFYING ACCOUN

VALUATION AND QUALIFYING ACCOUNTS	12 Months Ended
	Dec. 31, 2024
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
VALUATION AND QUALIFYING ACCOUNTS	VALUATION AND QUALIFYING ACCOUNTS FOR THE YEARS ENDED DECEMBER 31, 2024, 2023 AND 2022 (In thousands) Balance at Additions Deductions/ Balance at End of Year Year Ended December 31, 2024 Allowance for doubtful accounts for trade receivables and contract assets $ 11,864 2,084 (8,336) $ 5,612 Valuation allowance on deferred tax assets $ 7,622 4,190 (1,629) $ 10,183 Year Ended December 31, 2023 Allowance for doubtful accounts for trade receivables and contract assets $ 15,310 3,948 (7,394) $ 11,864 Valuation allowance on deferred tax assets $ 6,728 2,210 (1,316) $ 7,622 Year Ended December 31, 2022 Allowance for doubtful accounts for trade receivables and contract assets $ 5,521 14,419 (4,630) $ 15,310 Valuation allowance on deferred tax assets $ 4,537 2,191 — $ 6,728

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pay vs Performance Disclosure
Net income	$ 454,533	$ 417,083	$ 419,416

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Dec. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Insider Trading Policies and Pr

Insider Trading Policies and Procedures	12 Months Ended
	Dec. 31, 2024
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted	true

Cybersecurity Risk Management a

Cybersecurity Risk Management and Strategy Disclosure	12 Months Ended
	Dec. 31, 2024
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]	We believe cybersecurity is a critical element in our business and in enabling digital transformation for our clients. EPAM and our clients and suppliers all face risks from cybersecurity threats and a cybersecurity incident impacting any or all of us could materially adversely affect our operations, performance, reputation, and results of operations. For these reasons, EPAM maintains a cybersecurity risk management program designed to identify, assess, manage, mitigate, and respond to cybersecurity threats. Our cybersecurity risk management program includes periodic reviews of our risks and responses as well as company-wide risk assessments by internal and external cyber risk professionals and is designed to address risks related to both EPAM’s corporate information technology network and our cybersecurity services. The governance structure, controls, and processes of our information security programs are based on industry best practices, our own practices and frameworks, and codified cybersecurity and information technology standards, including compliance with the International Organization Standardization/International Electrotechnical Commission 27001:2002 Information Security Management Systems standard, the International Standard on Assurance Engagements 3402 standard, as well as applicable laws and regulations. We are regularly subject to evaluations, assessments, audits, tests, and compliance inspections by clients and third-party auditors that we or our clients engage to evaluate and test our cybersecurity risk management processes. We have established processes and a committee to gather facts to make a multi-layered evaluation and determination of the impact and materiality of cybersecurity incidents and to apply information learned from each incident to protect EPAM, its personnel, and its clients from future cybersecurity risks. In addition to internal and external assessments of our own preparedness, we also seek to evaluate cybersecurity risks arising from our vendors and other third-party service providers. We review third-party cybersecurity controls through questionnaires, audits, and contract reviews, including adding security and privacy addenda to our contracts where applicable, and generally receive or commission system and organization controls reports, if available. We also generally require that our vendors report cybersecurity incidents to us so that we can assess the impact of an incident if it occurs. Vendors that are unable to provide adequate reporting or that have access to sensitive data generally have their cybersecurity processes and procedures reviewed and our relationship with that vendor is further assessed on the basis of those reviews. Our assessment of risks associated with use of third-party providers is part of our overall cybersecurity risk management framework.
Cybersecurity Risk Management Processes Integrated [Flag]	true
Cybersecurity Risk Management Third Party Engaged [Flag]	true
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]	true
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]	false
Cybersecurity Risk Board of Directors Oversight [Text Block]	In 2024, the Board delegated cybersecurity and information technology systems oversight to the Audit Committee while simultaneously creating a subcommittee of the Audit Committee solely focused on EPAM’s cybersecurity and information security, including risk monitoring, assessment and management systems and policies. The purpose of the delegation was to increase bilateral access and communication between our cybersecurity management and our Board members and to supplement and accelerate the cadence of cybersecurity updates and discussion in addition to the regular briefings provided to the entire Board.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]	Audit Committee
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]	In 2024, the Board delegated cybersecurity and information technology systems oversight to the Audit Committee while simultaneously creating a subcommittee of the Audit Committee solely focused on EPAM’s cybersecurity and information security, including risk monitoring, assessment and management systems and policies. The purpose of the delegation was to increase bilateral access and communication between our cybersecurity management and our Board members and to supplement and accelerate the cadence of cybersecurity updates and discussion in addition to the regular briefings provided to the entire Board.
Cybersecurity Risk Role of Management [Text Block]	Several of the members of our Board of Directors have extensive experience in the information technology and information security industries, so our entire Board historically oversaw EPAM’s cybersecurity risk exposure and our management’s processes for identifying, monitoring, and mitigating cybersecurity risks. In 2024, the Board delegated cybersecurity and information technology systems oversight to the Audit Committee while simultaneously creating a subcommittee of the Audit Committee solely focused on EPAM’s cybersecurity and information security, including risk monitoring, assessment and management systems and policies. The purpose of the delegation was to increase bilateral access and communication between our cybersecurity management and our Board members and to supplement and accelerate the cadence of cybersecurity updates and discussion in addition to the regular briefings provided to the entire Board. In addition to regular and periodic updates to the cybersecurity subcommittee, our Chief Information Security Officer and our Head of Global Operations brief the Board on our cybersecurity and information security programs and risks, both as a regular, standalone topic and as part of EPAM’s enterprise risk management program, where it remains rated as a high priority risk that has been integrated into our regular enterprise risk management assessments. Members of the Board or its leadership, as well as designated members of functional areas such as legal and communications, are also informed of cybersecurity incidents with the potential to have a business impact on EPAM, even if the incidents are not material to EPAM. Our information security programs are led by our Chief Information Security Officer and our Head of Global Operations and encompass our overall information security strategy, policy, operations, and threat detection and response management. Our information security leadership has more than 50 years of combined experience in software product engineering, security, and IT services, with extensive operational, cybersecurity, and global management experience in our or other corporate information security roles and organizations. Our information security leadership is also responsible for notifying our management and members of the Board about cybersecurity threats and incidents. Our information security team reports to our information security leadership and selects, deploys, and operates cybersecurity technologies, initiatives, and processes across our global footprint and develops and monitors government, public, and private threat intelligence sources to continually enhance our enterprise security structure and system resilience. Our personnel and end-users who are not assigned to our information security organization also contribute to our cybersecurity defense matrix by engaging in various learning modules and events, including simulations, tabletop exercises, and mandatory annual compliance and threat awareness training. The results and feedback from our exercises and training programs are subsequently incorporated into our evolving cybersecurity strategy. We built a security operations center to constantly monitor our global information security posture and to receive threat notifications and coordinate the investigation and remediation of alerts. In the event of an incident, we have developed detailed incident response playbooks that outline the identification, assessment, remediation, and prevention steps that we follow when responding to a cybersecurity threat.
Cybersecurity Risk Management Positions or Committees Responsible [Flag]	true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]	In addition to regular and periodic updates to the cybersecurity subcommittee, our Chief Information Security Officer and our Head of Global Operations brief the Board on our cybersecurity and information security programs and risks, both as a regular, standalone topic and as part of EPAM’s enterprise risk management program, where it remains rated as a high priority risk that has been integrated into our regular enterprise risk management assessments.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]	Our information security leadership has more than 50 years of combined experience in software product engineering, security, and IT services, with extensive operational, cybersecurity, and global management experience in our or other corporate information security roles and organizations.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]	Members of the Board or its leadership, as well as designated members of functional areas such as legal and communications, are also informed of cybersecurity incidents with the potential to have a business impact on EPAM, even if the incidents are not material to EPAM.Our information security team reports to our information security leadership and selects, deploys, and operates cybersecurity technologies, initiatives, and processes across our global footprint and develops and monitors government, public, and private threat intelligence sources to continually enhance our enterprise security structure and system resilience.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]	true

ORGANIZATION AND SUMMARY OF S_2

ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2024
Accounting Policies [Abstract]
Nature of Operations	EPAM Systems, Inc. (the “Company” or “EPAM”) is a leading digital transformation services and product engineering company, providing digital platform engineering and software development services to clients across six continents. In a business landscape that is constantly challenged by the pressures of digitization, EPAM focuses on building long-term partnerships with clients in various industries through innovative and scalable software solutions, integrated strategy, experience and technology consulting, and a continually evolving mix of advanced capabilities. The Company is incorporated in Delaware with headquarters in Newtown, Pennsylvania.
Principles of Consolidation	Principles of Consolidation — The consolidated financial statements include the financial statements of EPAM and its subsidiaries. All intercompany balances and transactions have been eliminated.
Use of Estimates	Use of Estimates — The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions. These estimates and assumptions affect reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as revenues and expenses during the reporting period. The Company bases its estimates and judgments on historical experience, knowledge of current conditions and its beliefs of what could occur in the future, given available information. Actual results could differ from those estimates, and such differences may be material to the financial statements.
Cash and Cash Equivalents	Cash and Cash Equivalents
Trade Receivables and Contract Assets	Trade Receivables and Contract Assets
Property and Equipment	Property and Equipment two
Business Combinations	Business Combinations — The Company accounts for business combinations using the acquisition method which requires it to estimate the fair value of identifiable assets acquired and liabilities assumed, including any contingent consideration, to properly allocate the purchase price to the individual assets acquired and liabilities assumed in accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 805, Business Combinations . A substantial portion of the purchase price is typically allocated to goodwill and other intangible assets, which usually include customer relationships, software, trade names, and assembled workforce. The allocation of the purchase price utilizes significant estimates in determining the fair values of identifiable assets acquired and liabilities assumed, especially with respect to intangible assets. The significant estimates and assumptions used include the timing and amount of forecasted revenues and cash flows, anticipated growth rates, customer attrition rates, the discount rate reflecting the risk inherent in future cash flows and the useful lives for finite-lived assets. There are different valuation models for each component, the selection of which requires considerable judgment. These determinations will affect the amount of amortization expense recognized in future periods. The Company bases its fair value estimates on assumptions it believes are reasonable but recognizes that the assumptions are inherently uncertain. If the initial accounting for the business combination has not been completed by the end of the reporting period in which the business combination occurs, provisional amounts are reported to present information about facts and circumstances that existed as of the acquisition date. Once the measurement period ends, which in no case extends beyond one year from the acquisition date, revisions to the accounting for the business combination are recorded in earnings. In some business combinations, the Company agrees to contingent consideration arrangements and the Company determines the fair value of contingent consideration using Monte Carlo simulations (which involve a simulation of future revenues and earnings during the earn-out period using management’s best estimates) or probability-weighted expected return methods. Changes in financial projections, market risk assumptions, discount rates or probability assumptions related to achieving the various earn-out criteria would result in a change in the fair value of contingent consideration. Such changes in the fair value of contingent consideration arrangements that are not measurement period adjustments are recorded within Interest and other income, net in the Company’s consolidated statements of income.
Long-Lived Assets	Long-Lived Assets
Goodwill and Other Indefinite-Lived Intangible Assets	Goodwill and Other Indefinite-Lived Intangible Assets — Goodwill and other intangible assets that have indefinite useful lives are accounted for in accordance with FASB ASC 350, Intangibles — Goodwill and Other . The Company conducts its evaluation of goodwill impairment at the reporting unit level on an annual basis as of October 31st, and more frequently if events or circumstances indicate that the carrying value of a reporting unit exceeds its fair value. A reporting unit is an operating segment or one level below. The Company does not have intangible assets other than goodwill that have indefinite useful lives.
Derivative Financial Instruments	Derivative Financial Instruments — The Company enters into derivative financial instruments to manage exposure to fluctuations in certain foreign currencies. The Company measures these foreign currency derivative contracts at fair value on a recurring basis utilizing Level 2 inputs and recognizes them as either assets or liabilities in its consolidated balance sheets. The Company records changes in the fair value of these hedges in accumulated other comprehensive loss until the forecasted transaction occurs. When the forecasted transaction occurs, the Company reclassifies the related gain or loss on the cash flow hedge to cost of revenues (exclusive of depreciation and amortization). In the event the underlying forecasted transaction does not occur, or it becomes probable that it will not occur, the Company reclassifies the gain or loss on the underlying hedge into income. If the Company does not elect hedge accounting, or the contract does not qualify for hedge accounting treatment, the changes in fair value from period to period are recorded in income. The cash flow impact of derivatives identified as hedging instruments is reflected as cash flows from operating activities. The cash flow impact of derivatives not identified as hedging instruments is reflected as cash flows from investing activities.
Fair Value of Financial Instruments	Fair Value of Financial Instruments — The Company makes assumptions about fair values of its financial assets and liabilities in accordance with FASB ASC Topic 820, Fair Value Measurement , and utilizes the following fair value hierarchy in determining inputs used for valuation: Level 1 — Quoted prices for identical assets or liabilities in active markets. Level 2 — Inputs other than quoted prices within Level 1 that are observable either directly or indirectly, including quoted prices in markets that are not active, quoted prices in active markets for similar assets or liabilities, and observable inputs other than quoted prices such as interest rates or yield curves. Level 3 — Unobservable inputs reflecting management’s view about the assumptions that market participants would use in pricing the asset or liability. Where the fair values of financial assets and liabilities recorded in the consolidated balance sheets cannot be derived from an active market, they are determined using a variety of valuation techniques. These valuation techniques include a net present value technique, comparison to similar instruments with market observable inputs, option pricing models and other relevant valuation models. To the extent possible, observable market data is used as inputs into these models but when it is not feasible, a degree of judgment is required to establish fair values. Changes in the fair value of liabilities could cause a material impact to, and volatility in the Company’s operating results. See Note 5 “Fair Value Measurements.”
Leases	Leases — The Company determines if an arrangement is a lease or contains a lease at inception. The Company performs an assessment and classifies the lease as either an operating lease or a financing lease at the lease commencement date with a right-of-use asset and a lease liability recognized in the consolidated balance sheet under both classifications. The Company does not have finance leases that are material to the Company’s consolidated financial statements. Lease liabilities are initially measured at the present value of lease payments not yet paid. The present value is determined by applying the readily determinable rate implicit in the lease or, if not available, the incremental borrowing rate of the lessee. The Company determines the incremental borrowing rate of the lessee on a lease-by-lease basis by developing an estimated centralized U.S. dollar borrowing rate for a fully collateralized obligation with a term similar to the lease term and adjusts the rate to reflect the incremental risk associated with the foreign currency in which the lease is denominated. The development of this estimate includes the use of recovery rates, U.S. risk-free rates, foreign currency/country base rate yields, and a synthetic corporate credit rating of the Company developed using regression analysis. Lease agreements of the Company may include options to extend or terminate the lease and the Company includes such options in the lease term when it is reasonably certain that the Company will exercise that option. Right-of-use assets are recognized based on the initial measurement of the lease liabilities plus initial direct costs less lease incentives and, according to the guidance for long-lived assets, right-of-use assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Lease expense for operating leases is recognized on a straight-line basis over the lease term.
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss — Accumulated other comprehensive loss consists of changes in the cumulative foreign currency translation adjustments and actuarial gains and losses on defined benefit pension plans. In addition, the Company enters into foreign currency exchange contracts, which are designated as cash flow hedges in accordance with FASB ASC Topic 815, Derivatives and Hedging.
Revenue Recognition	Revenue Recognition — The Company recognizes revenues when control of goods or services is passed to a client in an amount that reflects the consideration the Company expects to be entitled to in exchange for those goods or services. Such control may be transferred over time or at a point in time depending on satisfaction of obligations stipulated by the contract. Consideration expected to be received may consist of both fixed and variable components and is allocated to each separately identifiable performance obligation based on the performance obligation’s relative standalone selling price. Variable consideration usually takes the form of volume-based discounts, service level credits, price concessions or incentives. Determining the estimated amount of such variable consideration involves assumptions and judgment that can have an impact on the amount of revenues reported. The Company derives revenues from a variety of service arrangements, which have been evolving to provide more customized and integrated solutions to clients by combining software engineering with client experience design, business consulting and technology innovation services. Fees for these contracts may be in the form of time-and-materials or fixed-price arrangements. The Company generates the majority of its revenues under time-and-material contracts, which are billed using hourly, daily or monthly rates to determine the amounts to be charged directly to the client. The Company applies a practical expedient and revenues related to time-and-material contracts are recognized based on the right to invoice for services performed. Fixed-price contracts include maintenance and support arrangements which may exceed one year in duration. Maintenance and support arrangements generally relate to the provision of ongoing services and revenues for such contracts are recognized ratably over the expected service period. Fixed-price contracts also include application development arrangements, where progress towards satisfaction of the performance obligation is measured using input or output methods and input methods are used only when there is a direct correlation between hours incurred and the end product delivered. Assumptions, risks and uncertainties inherent in the estimates used to measure progress could affect the amount of revenues, receivables and deferred revenues at each reporting period. Revenues from licenses which have significant stand-alone functionality are recognized at a point in time when control of the license is transferred to the client. Revenues from licenses which do not have stand-alone functionality are recognized over time. If there is an uncertainty about the receipt of payment for the services, revenue recognition is deferred until the uncertainty is sufficiently resolved. The Company applies a practical expedient and does not assess the existence of a significant financing component if the period between transfer of the service to a client and when the client pays for that service is one year or less.
Cost of Revenues (Exclusive of Depreciation and Amortization)	Cost of Revenues (Exclusive of Depreciation and Amortization)
Selling, General and Administrative Expenses	Selling, General and Administrative Expenses — Consists of expenses associated with promoting and selling the Company’s services and general and administrative functions of the business. These expenses include the costs of salaries, bonuses, fringe benefits, stock-based compensation, severance, bad debt, travel, legal and accounting services, insurance, facilities including operating leases, advertising and other promotional activities. Additionally, selling, general and administrative expenses contain costs of relocating our employees and various one-time expenses such as impairment charges.
Stock-based Compensation	Stock-Based Compensation — The Company recognizes the cost of its equity settled stock-based incentive awards based on the fair value of the award at the date of grant, net of estimated forfeitures. The fair value of these awards at the date of grant is generally based on the grant-date price of the company's shares. The grant date fair value for stock options and stock purchase rights under the 2021 Employee Stock Purchase Plan (”ESPP”) is estimated using the Black-Scholes option-pricing valuation model. The cost is generally expensed evenly over the service period, unless otherwise specified by the award agreement. The service period is the period over which the employee performs the related services, which is normally the same as the vesting period. Equity-based awards that do not require future service are expensed immediately. For awards with performance conditions, the amount of compensation cost we recognize over the requisite service period is based on the actual or expected achievement of the performance condition. Quarterly, the forfeiture assumption is adjusted to reflect actual forfeitures and such adjustment may affect the timing of recognition of the total amount of expense recognized over the vesting period. Stock-based awards that do not meet the criteria for equity classification are recorded as liabilities and adjusted to fair value at the end of each reporting period.
Government Assistance Programs and Incentives	Government Assistance Programs and Incentives — The Company benefits from various government incentives in some countries where it operates in the form of cash grants or refundable tax credits. The eligibility to receive such assistance and amounts to be granted are determined based on regulations issued by the relevant government authorities. The incentives are generally based on qualifying expenditures or subject to achieving certain employment and investment targets. As there is no authoritative guidance under U.S. GAAP for government assistance to for-profit business entities, the Company accounts for government assistance by analogy to International Accounting Standards 20 ("IAS 20"), Accounting for Government Grants and Disclosure of Government Assistance . In accordance with IAS 20, the Company recognizes the benefits from government assistance when it has reasonable assurance it will comply with the terms of the assistance and the assistance will be received.
Income Taxes	Income Taxes — The provision for income taxes includes federal, state, local and foreign taxes. Deferred tax assets and liabilities are recognized for the estimated future tax consequences of temporary differences between the financial statement carrying amounts and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the year in which the temporary differences are expected to be reversed. Changes to enacted tax rates would result in either increases or decreases in the provision for income taxes in the period of changes. The realizability of deferred tax assets is primarily dependent on future earnings. The Company evaluates the realizability of deferred tax assets and recognizes a valuation allowance when it is more likely than not that all, or a portion of, deferred tax assets will not be realized. A reduction in estimated forecasted results may require that we record valuation allowances against deferred tax assets. Once a valuation allowance has been established, it will be maintained until there is sufficient positive evidence to conclude that it is more likely than not that the deferred tax assets will be realized. A pattern of sustained profitability will generally be considered as sufficient positive evidence to reverse a valuation allowance. If the allowance is reversed in a future period, the income tax provision will be correspondingly reduced. Accordingly, the increase and decrease of valuation allowances could have a significant negative or positive impact on future earnings.
Earnings Per Share ("EPS")	Earnings per Share (“EPS”)
Foreign Currency Translation and Remeasurement	Foreign Currency Translation and Remeasurement — Assets and liabilities of consolidated foreign subsidiaries whose functional currency is not the U.S. dollar are translated into U.S. dollars at period-end exchange rates and revenues and expenses are translated into U.S. dollars at average monthly exchange rates. The adjustment resulting from translating the financial statements of such foreign subsidiaries into U.S. dollars is reflected as a cumulative translation adjustment and reported as a component of Accumulated other comprehensive loss. For consolidated foreign subsidiaries whose functional currency is not the local currency, transactions and balances denominated in the local currency are foreign currency transactions. Foreign currency transactions and balances related to non-monetary assets and liabilities are remeasured to the functional currency of the subsidiary at historical exchange rates while monetary assets and liabilities are remeasured to the functional currency of the subsidiary at period-end exchange rates. Foreign currency exchange gains or losses from remeasurement are included in income in the period in which they occur.
Risks and Uncertainties	Risks and Uncertainties — As a result of its global operations, the Company may be subject to certain inherent risks. Concentration of Credit — Financial instruments that potentially subject the Company to concentration of credit risk consist primarily of cash, cash equivalents, short-term investments and trade receivables. The Company maintains cash, cash equivalents and short-term investments with financial institutions. The Company believes its credit policies reflect normal industry terms and business risk and there is no expectation of non-performance by the counterparties. The Company has cash in several countries, including Ukraine and Belarus, where the banking sector remains subject to periodic instability; banking and other financial systems generally do not meet the banking standards of more developed markets; and bank deposits made by corporate entities are not insured. As of December 31, 2024, the Company had $41.1 million of cash and cash equivalents in banks in Ukraine and $37.5 million of cash and cash equivalents in banks in Belarus. The Company regularly monitors cash held in these countries and, to the extent the cash held exceeds amounts required to support its operations in these countries, the Company distributes the excess funds into markets with more developed banking sectors to the extent it is possible to do so. In April 2024, Belarus instituted new restrictions on distributing dividends from Belarus to shareholders in certain countries, including the U.S. The restrictions are initially scheduled to remain in place until the end of 2025 and may prevent EPAM from distributing excess funds, if any, out of Belarus. The Company does not expect these new restrictions to have a material impact on its ability to meet its worldwide cash obligations during this period. The Company places its cash and cash equivalents with financial institutions considered stable in the region, limits the amount of credit exposure with any one financial institution and conducts ongoing evaluations of the credit worthiness of the financial institutions with which it does business. However, a banking crisis, bankruptcy or insolvency of banks that process or hold the Company’s funds, or sanctions may result in the loss of deposits or adversely affect the Company’s ability to complete banking transactions, which could adversely affect the Company’s business and financial condition. Trade receivables are generally dispersed across many clients operating in different industries; therefore, concentration of credit risk is limited. Historically, credit losses and write-offs of trade receivables have not been material to the consolidated financial statements. If the Company’s clients enter bankruptcy protection or otherwise take steps to alleviate their financial distress, the Company’s credit losses and write-offs of trade receivables could increase, which would negatively impact its results of operations. Foreign currency risk — The Company’s global operations are conducted predominantly in U.S. dollars. Other than U.S. dollars, the Company generates revenues in various currencies, principally, euros, British pounds, Swiss francs and Canadian dollars and incurs expenditures principally in euros, Indian rupees, Polish zlotys, British pounds, Swiss francs, Hungarian forints, Mexican pesos, Colombian pesos, Canadian dollars, Chinese yuan renminbi and Armenian drams. The Company’s international operations expose it to risk of adverse fluctuations in foreign currency exchange rates through the remeasurement of foreign currency denominated assets and liabilities (both third-party and intercompany) and translation of earnings and cash flows into U.S. dollars. The Company has a hedging program whereby it enters into a series of foreign exchange forward contracts with durations of twelve months or less that are designated as cash flow hedges of forecasted Polish zloty, Indian rupee, Hungarian forint and Mexican peso transactions. See Note 6 “Derivative Financial Instruments ” for further information on the Company’s hedging program. Interest rate risk
Adoption of New Accounting Standards and Pending Accounting Standards	Adoption of New Accounting Standards Unless otherwise discussed below, the adoption of new accounting standards did not have a material impact on the Company’s consolidated financial statements. Segment Reporting - Improvements to Reportable Segment Disclosures — In November 2023, the FASB issued Accounting Standard Update (“ASU”) No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. The update is intended to improve reportable segment disclosures, primarily through enhanced disclosures about significant segment expenses. The update is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted and requires retrospective application to all prior periods presented in the financial statements. The Company adopted this guidance in the fourth quarter of 2024, retrospectively applied to all prior periods presented in the financial statements. The adoption did not have a material impact on the previously reported consolidated financial statements. See Note 19 “Segment Information” for additional information. Pending Accounting Standards From time to time, new accounting pronouncements are issued by the FASB or other standards-setting bodies that the Company will adopt according to the various timetables the FASB specifies. Unless otherwise discussed below, the Company believes the impact of recently issued standards that are not yet effective will not have a material impact on its consolidated financial statements upon adoption. Income Taxes - Improvements to Income Tax Disclosures — In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures , which requires disclosure of disaggregated income taxes paid, prescribes standard categories for the components of the effective tax rate reconciliation, and modifies other income tax-related disclosures. The new guidance is effective for annual periods beginning after December 15, 2024, with early adoption permitted and may be applied prospectively or retrospectively. The Company intends to adopt this ASU for the year ended December 31, 2025 and is still assessing the effect this guidance may have on its consolidated financial statement disclosures. Income Statement - Disaggregation of Income Statement Expenses — In November 2024, the FASB issued ASU No. 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses.
Non-Marketable Securities Without Readily Determinable Fair Values	Non-Marketable Securities Without Readily Determinable Fair Values

ACQUISITIONS (Tables)

ACQUISITIONS (Tables)	12 Months Ended
	Dec. 31, 2024
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]
Schedule of Fair Values of Assets Acquired and Liabilities Assumed	The following table summarizes the estimated fair values of the assets acquired and liabilities assumed as of the date of each respective acquisition: First Derivative NEORIS Cash and cash equivalents $ 9,160 $ 63,470 Trade receivables and contract assets 46,678 79,550 Prepaid and other current assets 10,491 8,225 Goodwill 170,443 406,756 Intangible assets 124,809 259,000 Property and equipment and other noncurrent assets 3,595 22,240 Total assets acquired $ 365,176 $ 839,241 Accounts payable, accrued expenses and other current liabilities $ 32,016 $ 126,791 Other noncurrent liabilities 32,451 84,743 Total liabilities assumed $ 64,467 $ 211,534 Noncontrolling interest in consolidated subsidiaries — 1,358 Net assets acquired $ 300,709 $ 626,349
Schedule of Acquired Finite-Lived Intangible Assets by Major Class	As of December 31, 2024, the following table presents the estimated fair values and useful lives of intangible assets acquired from First Derivative and NEORIS: First Derivative NEORIS Weighted Average Useful Life (in years) Amount Weighted Average Useful Life (in years) Amount Customer relationships 8 $ 118,441 8 $ 249,000 Trade names 5 6,368 5 10,000 Total $ 124,809 $ 259,000
Schedule of Business Acquisition, Pro Forma Information	The following table presents the unaudited consolidated pro forma results of operations for the years ended December 31, 2024 and 2023: Year Ended December 31, 2024 Year Ended December 31, 2023 Revenues $ 5,015,157 $ 5,013,488 Net income $ 407,200 $ 399,973

GOODWILL AND INTANGIBLE ASSET_2

GOODWILL AND INTANGIBLE ASSETS, NET (Tables)	12 Months Ended
	Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill by Reportable Segment	Goodwill by reportable segment was as follows: North America Europe Total Balance as of January 1, 2023 $ 216,960 $ 312,112 $ 529,072 2023 Acquisitions 24,477 — 24,477 2022 Acquisitions purchase accounting adjustments — 87 87 Effect of net foreign currency exchange rate changes 423 8,400 8,823 Balance as of December 31, 2023 $ 241,860 $ 320,599 $ 562,459 NEORIS acquisition 333,538 73,218 406,756 First Derivative acquisition 35,793 134,650 170,443 Other 2024 Acquisitions 40,529 12,926 53,455 2023 Acquisitions purchase accounting adjustments 861 — 861 Effect of net foreign currency exchange rate changes (515) (11,884) (12,399) Balance as of December 31, 2024 $ 652,066 $ 529,509 $ 1,181,575
Schedule of Components of Intangible Assets	Intangible assets other than goodwill as of December 31, 2024 and 2023 were as follows: As of December 31, 2024 Weighted average life at acquisition (in years) Gross carrying amount Accumulated amortization Net Customer relationships 8 $ 547,552 $ (128,148) $ 419,404 Trade names 5 26,468 (10,017) 16,451 Software 5 5,942 (5,656) 286 Contract royalties 8 1,900 (1,623) 277 Total $ 581,862 $ (145,444) $ 436,418 As of December 31, 2023 Weighted average life at acquisition (in years) Gross carrying amount Accumulated amortization Net Customer relationships 8 $ 171,735 $ (103,651) $ 68,084 Trade names 4 10,798 (9,588) 1,210 Software 6 6,134 (4,825) 1,309 Contract royalties 8 1,900 (1,385) 515 Total $ 190,567 $ (119,449) $ 71,118
Schedule of Intangible Assets Amortization Expense Recognized	The following table presents amortization expense recognized for the periods indicated: For the Years Ended December 31, 2024 2023 2022 Customer relationships $ 26,798 $ 19,855 $ 18,946 Trade names 1,437 1,522 1,909 Software 1,002 1,102 1,086 Contract royalties 238 238 238 Assembled workforce — — 44 Total $ 29,475 $ 22,717 $ 22,223
Schedule of Estimated Amortization Expense	Based on the carrying value of the Company’s existing intangible assets as of December 31, 2024, the estimated amortization expense for the future years is as follows: Year ending December 31, Amount 2025 $ 68,591 2026 64,529 2027 60,519 2028 54,424 2029 52,367 Thereafter 135,988 Total $ 436,418

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	12 Months Ended
	Dec. 31, 2024
Fair Value Disclosures [Abstract]
Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following table shows the fair values of the Company’s financial liabilities measured at fair value on a recurring basis as of December 31, 2024: As of December 31, 2024 Balance Level 1 Level 2 Level 3 Foreign exchange derivative liabilities $ 14,650 $ — $ 14,650 $ — Contingent consideration 32,978 — — 32,978 Total liabilities measured at fair value on a recurring basis $ 47,628 $ — $ 14,650 $ 32,978 The following table shows the fair values of the Company’s financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2023. As of December 31, 2023 Balance Level 1 Level 2 Level 3 Foreign exchange derivative assets $ 10,416 $ — $ 10,416 $ — Total assets measured at fair value on a recurring basis $ 10,416 $ — $ 10,416 $ — Foreign exchange derivative liabilities $ 248 $ — $ 248 $ — Contingent consideration 23,150 — — 23,150 Total liabilities measured at fair value on a recurring basis $ 23,398 $ — $ 248 $ 23,150
Schedule of Acquisition-Related Contingent Consideration Roll Forward	A reconciliation of the beginning and ending balances of Level 3 contingent consideration liabilities using significant unobservable inputs for the years ended December 31, 2022, December 31, 2023, and December 31, 2024 are as follows: Amount Contingent consideration liabilities as of January 1, 2022 $ 23,114 Acquisition date fair value of contingent consideration — 2022 Acquisitions 2,645 Changes in fair value of contingent consideration included in Interest and other income, net 11,101 Payment of contingent consideration for previously acquired businesses (11,328) Effect of net foreign currency exchange rate changes (1,224) Contingent consideration liabilities as of December 31, 2022 $ 24,308 Acquisition date fair value of contingent consideration — 2023 Acquisitions 14,850 Changes in fair value of contingent consideration included in Interest and other income, net 2,814 Payment of contingent consideration for previously acquired businesses (18,844) Effect of net foreign currency exchange rate changes 22 Contingent consideration liabilities as of December 31, 2023 $ 23,150 Acquisition date fair value of assumed contingent consideration — NEORIS 4,654 Acquisition date fair value of contingent consideration — Other 2024 Acquisitions 9,755 Changes in fair value of contingent consideration included in Interest and other income, net 5,699 Payment of contingent consideration for previously acquired businesses (10,125) Effect of net foreign currency exchange rate changes (155) Contingent consideration liabilities as of December 31, 2024 $ 32,978
Schedule of Estimated Fair Values of Financial Assets and Liabilities Not Measured at Fair Value on a Recurring Basis	The following tables present the estimated fair values of the Company’s financial assets and liabilities not measured at fair value on a recurring basis as of the dates indicated: Fair Value Hierarchy Balance Estimated Fair Value Level 1 Level 2 Level 3 December 31, 2024 Financial Assets: Cash equivalents: Money market funds $ 5,200 $ 5,200 $ 5,200 $ — $ — Time deposits 16,907 16,907 — 16,907 — Total cash equivalents $ 22,107 $ 22,107 $ 5,200 $ 16,907 $ — Financial Liabilities: Borrowings under 2021 Credit Agreement $ 25,000 $ 25,000 $ — $ 25,000 $ — Deferred consideration for asset acquisition $ 33,187 $ 33,187 $ — $ 33,187 $ — Fair Value Hierarchy Balance Estimated Fair Value Level 1 Level 2 Level 3 December 31, 2023 Financial Assets: Cash equivalents: Money market funds $ 168,120 $ 168,120 $ 168,120 $ — $ — Time deposits 105,210 105,210 — 105,210 — Total cash equivalents $ 273,330 $ 273,330 $ 168,120 $ 105,210 $ — Time deposits included in Short-term investments $ 60,739 $ 60,739 $ — $ 60,739 $ — Financial Liabilities: Borrowings under 2021 Credit Agreement $ 25,000 $ 25,000 $ — $ 25,000 $ — Deferred consideration for asset acquisition $ 46,954 $ 46,954 $ — $ 46,954 $ —

DERIVATIVE FINANCIAL INSTRUME_2

DERIVATIVE FINANCIAL INSTRUMENTS (Tables)	12 Months Ended
	Dec. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Fair Value of Derivative Instruments	The fair value of foreign currency derivative instruments on the Company’s consolidated balance sheets as of December 31, 2024 and December 31, 2023 were as follows: As of December 31, 2024 As of December 31, 2023 Balance Sheet Classification Asset Derivatives Liability Derivatives Asset Derivatives Liability Derivatives Foreign exchange forward contracts - Prepaid expenses and other current assets $ — $ 10,416 Accrued expenses and other current liabilities $ 14,650 $ 248

PROPERTY AND EQUIPMENT, NET (Ta

PROPERTY AND EQUIPMENT, NET (Tables)	12 Months Ended
	Dec. 31, 2024
Property, Plant and Equipment [Abstract]
Schedule of Components of Property and Equipment, Net	Property and equipment, net consisted of the following: Weighted Average Useful Life As of December 31, 2024 As of December 31, 2023 Computer hardware 4 $ 146,966 $ 155,991 Purchased computer software 4 91,630 88,644 Buildings 46 55,057 54,899 Leasehold improvements 7 39,278 37,189 Furniture, fixture and other equipment 7 21,191 22,583 Office equipment 7 18,394 18,315 Land improvements 18 2,137 2,142 Land n/a 1,339 1,339 Construction in progress n/a 52,264 51,477 428,256 432,579 Less: accumulated depreciation and amortization (220,589) (197,526) Total $ 207,667 $ 235,053

ACCRUED EXPENSES AND OTHER CU_2

ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Tables)	12 Months Ended
	Dec. 31, 2024
Payables and Accruals [Abstract]
Schedule of Components of Accrued Expenses and Other Current Liabilities	Accrued expenses and other current liabilities consisted of the following: As of December 31, 2024 As of December 31, 2023 Deferred revenue $ 59,321 $ 27,988 Value added taxes payable 43,739 39,852 Contingent consideration, current (Note 5) 14,660 9,650 Foreign exchange derivative liabilities 14,650 248 Other current liabilities and accrued expenses 68,986 47,085 Total $ 201,356 $ 124,823

LEASES (Tables)

LEASES (Tables)	12 Months Ended
	Dec. 31, 2024
Leases [Abstract]
Schedule of Components of Lease Expenses	During the years ended December 31, 2024, 2023 and 2022, the components of lease expense were as follows: Income Statement Classification Year Ended December 31, 2024 Year Ended December 31, 2023 Year Ended December 31, 2022 Operating lease cost Selling, general and administrative expenses $ 43,524 $ 47,824 $ 51,775 Variable lease cost Selling, general and administrative expenses 10,912 13,156 10,372 Short-term lease cost Selling, general and administrative expenses 3,785 5,602 5,289 Total lease cost $ 58,221 $ 66,582 $ 67,436
Schedule of Supplemental Cash Flow Information	Supplemental cash flow information related to leases for the years ended December 31, 2024 and 2023 were as follows: Year Ended December 31, 2024 Year Ended December 31, 2023 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used for operating leases $ 45,640 $ 52,373 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 23,771 $ 18,063 Non-cash net increase/ (decrease) due to lease modifications: Operating lease right-of-use assets $ 13,522 $ 7,595 Operating lease liabilities $ 13,557 $ 9,198
Schedule of Weighted Average Lease Term and Discount Rates	Weighted average remaining lease terms and discount rates as of December 31, 2024 and 2023, were as follows: As of December 31, 2024 As of December 31, 2023 Weighted average remaining lease term, in years: Operating leases 4.3 5.0 Weighted average discount rate: Operating leases 4.3 % 4.1 %
Schedule of Maturity of Operating Lease Liabilities	As of December 31, 2024, operating lease liabilities will mature as follows: Year ending December 31, Lease Payments 2025 $ 44,455 2026 35,972 2027 26,118 2028 20,855 2029 11,765 Thereafter 10,968 Total lease payments 150,133 Less: imputed interest (12,073) Total $ 138,060

DEBT (Tables)

DEBT (Tables)	12 Months Ended
	Dec. 31, 2024
Debt Disclosure [Abstract]
Schedule of Outstanding Debt and Borrowing Capacity	The following table presents the outstanding debt and borrowing capacity of the Company under the 2021 Credit Agreement as of December 31, 2024 and 2023: As of December 31, 2024 As of December 31, 2023 Outstanding debt $ 25,000 $ 25,000 Interest rate 5.4 % 6.3 % Available borrowing capacity $ 675,000 $ 675,000 Maximum borrowing capacity $ 700,000 $ 700,000

PENSION AND POSTRETIREMENT BE_2

PENSION AND POSTRETIREMENT BENEFITS (Tables)	12 Months Ended
	Dec. 31, 2024
Retirement Benefits [Abstract]
Schedule of Defined Benefit Pension Plans	As of December 31, 2024 and 2023, the amounts recognized in the Company's consolidated balance sheets for the Company's defined benefit plans, all of which were underfunded, were as follows: As of As of Liabilities recognized: Accrued compensation and benefits expenses $ 2,105 $ 998 Other noncurrent liabilities 27,472 14,912 Unfunded status $ 29,577 $ 15,910

COST OPTIMIZATION PROGRAMS (Tab

COST OPTIMIZATION PROGRAMS (Tables)	12 Months Ended
	Dec. 31, 2024
Restructuring and Related Activities [Abstract]
Schedule of Restructuring and Related Costs	Activity in the Company’s restructuring reserves for the year ended December 31, 2024 was as follows: Balance at December 31, 2023 Charges Payments Made Balance at December 31. 2024 2024 Cost Optimization Program Employee separation costs $ — $ 21,969 $ (20,206) $ 1,763 Contract termination charges — 286 (286) — 2023 Cost Optimization Program Employee separation costs 6,966 9,015 (15,981) — Total $ 6,966 $ 31,270 $ (36,473) $ 1,763 Activity in the Company’s restructuring reserves for the year ended December 31, 2023 was as follows: Balance at December 31, 2022 Charges Payments Made Balance at December 31. 2023 2023 Cost Optimization Program Employee separation costs $ — $ 28,990 $ (22,024) $ 6,966 Total $ — $ 28,990 $ (22,024) $ 6,966

REVENUES (Tables)

REVENUES (Tables)	12 Months Ended
	Dec. 31, 2024
Revenue from Contract with Customer [Abstract]
Schedule of Disaggregation of Revenues	The following tables present the disaggregation of the Company’s revenues by major client location, including a reconciliation of the disaggregated revenues with the Company’s reportable segments (Note 19 “Segment Information”) for the years ended December 31, 2024, 2023 and 2022: Year Ended December 31, 2024 Reportable Segments North America Europe Consolidated Revenues Client Locations Americas (1) $ 2,726,757 $ 107,947 $ 2,834,704 EMEA (2) 137,370 1,655,828 1,793,198 APAC (3) 2,212 97,826 100,038 CEE (4) — — — Revenues $ 2,866,339 $ 1,861,601 $ 4,727,940 (1) Americas includes revenues from clients in North, Central and South America. (2) EMEA includes revenues from clients in Western Europe and the Middle East. (3) APAC, or Asia Pacific, includes revenues from clients in East Asia, Southeast Asia and Australia. (4) CEE includes revenues from clients in Belarus, Georgia, Kazakhstan, Russia, Ukraine and Uzbekistan. As a result of the sale of the Company’s remaining holdings in Russia to a third-party on July 26, 2023, revenues from the CEE region are no longer material. Beginning in 2024, revenues from the CEE region are included in the EMEA region. Year Ended December 31, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Client Locations Americas $ 2,645,174 $ 96,857 $ 631 $ 2,742,662 EMEA 116,054 1,706,728 — 1,822,782 APAC 3,248 98,890 — 102,138 CEE 546 6,968 15,444 22,958 Revenues $ 2,765,022 $ 1,909,443 $ 16,075 $ 4,690,540 Year Ended December 31, 2022 Reportable Segments North America Europe Russia Consolidated Revenues Client Locations Americas $ 2,792,156 $ 92,244 $ 2,804 $ 2,887,204 EMEA 95,706 1,642,114 99 1,737,919 APAC 3,837 116,533 — 120,370 CEE 6,855 2,165 70,185 79,205 Revenues $ 2,898,554 $ 1,853,056 $ 73,088 $ 4,824,698 The following tables present the disaggregation of the Company’s revenues by industry vertical, including a reconciliation of the disaggregated revenues with the Company’s reportable segments (Note 19 “Segment Information”) for the years ended December 31, 2024, 2023 and 2022: Year Ended December 31, 2024 Reportable Segments North America Europe Consolidated Revenues Industry Verticals Financial Services $ 519,986 $ 502,631 $ 1,022,617 Consumer Goods, Retail & Travel (1) 450,162 562,976 1,013,138 Software & Hi-Tech 525,091 177,276 702,367 Business Information & Media 449,449 225,148 674,597 Life Sciences & Healthcare 488,455 86,150 574,605 Emerging Verticals 433,196 307,420 740,616 Revenues $ 2,866,339 $ 1,861,601 $ 4,727,940 Year Ended December 31, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Industry Verticals Financial Services $ 538,837 $ 472,146 $ 7,450 $ 1,018,433 Consumer Goods, Retail & Travel (1) 472,350 596,830 3,770 1,072,950 Software & Hi-Tech 552,492 153,683 1,545 707,720 Business Information & Media 429,800 323,985 196 753,981 Life Sciences & Healthcare 429,245 60,549 120 489,914 Emerging Verticals 342,298 302,250 2,994 647,542 Revenues $ 2,765,022 $ 1,909,443 $ 16,075 $ 4,690,540 Year Ended December 31, 2022 Reportable Segments North America Europe Russia Consolidated Revenues Industry Verticals Financial Services $ 522,970 $ 460,858 $ 42,858 $ 1,026,686 Consumer Goods, Retail & Travel (1) 505,227 571,437 15,560 1,092,224 Software & Hi-Tech 655,122 136,273 1,866 793,261 Business Information & Media 467,664 341,344 944 809,952 Life Sciences & Healthcare 454,102 52,465 800 507,367 Emerging Verticals 293,469 290,679 11,060 595,208 Revenues $ 2,898,554 $ 1,853,056 $ 73,088 $ 4,824,698 (1) The Company renamed the Travel & Consumer vertical to Consumer Goods, Retail & Travel to better reflect the mix of clients included in this vertical. This constitutes a naming change only and no changes were made to amounts reported. The following tables present the disaggregation of the Company’s revenues by contract type, including a reconciliation of the disaggregated revenues with the Company’s reportable segments (Note 19 “Segment Information”) for the years ended December 31, 2024, 2023 and 2022: Year Ended December 31, 2024 Reportable Segments North America Europe Consolidated Revenues Contract Types Time-and-material $ 2,423,554 $ 1,477,398 $ 3,900,952 Fixed-price 419,361 377,870 797,231 Licensing and other revenues 23,424 6,333 29,757 Revenues $ 2,866,339 $ 1,861,601 $ 4,727,940 Year Ended December 31, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Contract Types Time-and-material $ 2,457,545 $ 1,613,790 $ 11,168 $ 4,082,503 Fixed-price 283,183 291,174 4,873 579,230 Licensing and other revenues 24,294 4,479 34 28,807 Revenues $ 2,765,022 $ 1,909,443 $ 16,075 $ 4,690,540 Year Ended December 31, 2022 Reportable Segments North America Europe Russia Consolidated Revenues Contract Types Time-and-material $ 2,615,213 $ 1,578,786 $ 45,581 $ 4,239,580 Fixed-price 263,603 269,669 27,195 560,467 Licensing and other revenues 19,738 4,601 312 24,651 Revenues $ 2,898,554 $ 1,853,056 $ 73,088 $ 4,824,698 Timing of Revenue Recognition The following tables present the revenues disaggregated by timing of revenue recognition and reconciled with the Company’s reportable segments (Note 19 “Segment Information”) for the years ended December 31, 2024, 2023 and 2022: Year Ended December 31, 2024 Reportable Segments North America Europe Consolidated Revenues Timing of Revenue Recognition Transferred over time $ 2,851,319 $ 1,857,303 $ 4,708,622 Transferred at a point of time 15,020 4,298 19,318 Revenues $ 2,866,339 $ 1,861,601 $ 4,727,940 Year Ended December 31, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Timing of Revenue Recognition Transferred over time $ 2,751,937 $ 1,907,010 $ 16,042 $ 4,674,989 Transferred at a point of time 13,085 2,433 33 15,551 Revenues $ 2,765,022 $ 1,909,443 $ 16,075 $ 4,690,540 Year Ended December 31, 2022 Reportable Segments North America Europe Russia Consolidated Revenues Timing of Revenue Recognition Transferred over time $ 2,888,342 $ 1,849,011 $ 72,795 $ 4,810,148 Transferred at a point of time 10,212 4,045 293 14,550 Revenues $ 2,898,554 $ 1,853,056 $ 73,088 $ 4,824,698
Schedule of Revenue Expected to be Recognized in Future Related to Remaining Performance Obligations	The following table includes the estimated revenues expected to be recognized in the future related to performance obligations that are partially or fully unsatisfied as of December 31, 2024. The Company applies a practical expedient and does not disclose the value of unsatisfied performance obligations for contracts that (i) have an original expected duration of one year or less and (ii) contracts for which it recognizes revenues at the amount to which it has the right to invoice for services provided: Less than 1 year 1 Year 2 Years 3 Years Total Contract Type Fixed-price $ 30,223 $ 2,629 $ — $ — $ 32,852
Schedule of Contract Balances	The following table provides information on the classification of contract assets and liabilities in the consolidated balance sheets: As of December 31, 2024 As of December 31, 2023 Contract assets included in Trade receivables and contract assets, net $ 52,897 $ 24,309 Contract liabilities included in Accrued expenses and other current liabilities $ 59,321 $ 27,988 Contract liabilities included in Other noncurrent liabilities $ 741 $ 951

STOCKHOLDERS_ EQUITY (Tables)

STOCKHOLDERS’ EQUITY (Tables)	12 Months Ended
	Dec. 31, 2024
Share-Based Payment Arrangement [Abstract]
Schedule of Components of Stock-Based Compensation Expenses	The following costs related to the Company’s stock compensation plans were included in the consolidated statements of income: For the Years Ended December 31, 2024 2023 2022 Cost of revenues (exclusive of depreciation and amortization) $ 80,944 $ 68,797 $ 47,470 Selling, general and administrative expenses 86,353 78,933 52,439 Total $ 167,297 $ 147,730 $ 99,909
Schedule of Stock Option Activity	Stock option activity under the Company’s long-term incentive plans is set forth below: Number of Weighted Average Aggregate Weighted Average Options outstanding as of January 1, 2022 2,318 $ 77.79 $ 1,369,132 Options granted 133 $ 277.85 Options exercised (514) $ 44.02 Options forfeited (11) $ 350.19 Options expired (3) $ 128.11 Options outstanding as of December 31, 2022 1,923 $ 98.92 $ 447,503 Options granted 114 $ 295.73 Options exercised (397) $ 39.01 Options forfeited (6) $ 316.91 Options expired (5) $ 340.13 Options outstanding as of December 31, 2023 1,629 $ 125.88 $ 289,552 Options granted 81 $ 296.87 Options exercised (483) $ 46.71 Options forfeited (16) $ 297.52 Options expired (5) $ 371.84 Options outstanding as of December 31, 2024 1,206 $ 165.78 $ 112,839 3.8 Options vested and exercisable as of December 31, 2024 973 $ 133.49 $ 112,814 2.7 Options expected to vest as of December 31, 2024 225 $ 300.46 $ 24 8.2
Schedule of Black-Scholes Option Valuation Model Assumptions	The fair value of each option award is estimated on the date of grant using the Black-Scholes option valuation model. The model incorporated the following weighted average assumptions: For the Years Ended December 31, 2024 2023 2022 Expected volatility 52.1 % 50.2 % 46.7 % Expected term (in years) 6.25 6.23 6.24 Risk-free interest rate 4.3 % 3.6 % 2.6 % Expected dividends — % — % — %
Schedule of Service-Based Awards Activity	The table below summarizes activity related to the Company’s equity-classified and liability-classified service-based awards for the years ended December 31, 2024, 2023 and 2022: Equity-Classified Equity-Classified Equity-Settled Restricted Stock Units Liability-Classified Cash-Settled Restricted Stock Units Number of Shares Weighted Average Grant Date Number of Shares Weighted Average Grant Date Number of Shares Weighted Average Grant Date Unvested service-based awards outstanding as of January 1, 2022 9 $ 167.18 576 $ 277.38 112 $ 217.28 Awards granted — $ — 655 $ 287.13 51 $ 269.60 Awards modified — $ — (3) $ 387.74 3 $ 220.00 Awards vested (9) $ 167.18 (244) $ 235.96 (56) $ 184.96 Awards forfeited — $ — (68) $ 328.81 (11) $ 260.59 Unvested service-based awards outstanding as of December 31, 2022 — $ — 916 $ 291.19 99 $ 257.74 Awards granted — $ — 607 $ 288.49 36 $ 298.81 Awards modified — $ — (15) $ 278.52 15 $ 305.59 Awards vested — $ — (329) $ 278.25 (46) $ 242.07 Awards forfeited — $ — (105) $ 304.91 (6) $ 254.82 Unvested service-based awards outstanding as of December 31, 2023 — $ — 1,074 $ 292.45 98 $ 287.36 Awards granted — $ — 617 $ 283.21 34 $ 298.35 Awards modified — $ — 1 $ 366.27 (1) $ 114.30 Awards vested — $ — (378) $ 289.48 (39) $ 273.28 Awards forfeited — $ — (102) $ 299.49 (3) $ 295.86 Unvested service-based awards outstanding as of December 31, 2024 — $ — 1,212 $ 288.12 89 $ 298.84
Schedule of Fair Value of Service-Based Awards Vested	The fair value of vested service-based awards (measured at the vesting date) for the years ended December 31, 2024, 2023 and 2022 was as follows: For the Years Ended December 31, 2024 2023 2022 Equity-classified equity-settled Restricted stock $ — $ — $ 3,990 Restricted stock units 105,100 94,418 69,510 Liability-classified cash-settled Restricted stock units 11,455 13,229 16,238 Total fair value of vested service-based awards $ 116,555 $ 107,647 $ 89,738
Schedule of Performance-Based Awards Activity	The table below summarizes activity related to the Company’s performance-based awards for the years ended December 31, 2024, 2023 and 2022: Equity-Classified Equity-Classified Number of Shares Weighted Average Grant Date Number of Shares Weighted Average Grant Date Unvested performance-based awards outstanding as of January 1, 2022 9 $ 165.87 23 $ 339.69 Awards granted — $ — 6 $ 418.26 Awards vested — $ — (9) $ 238.96 Awards forfeited — $ — (5) $ 377.87 Unvested performance-based awards outstanding as of December 31, 2022 9 $ 165.87 15 $ 412.60 Awards granted — $ — 6 $ 258.19 Awards vested (9) $ 165.87 (7) $ 229.98 Awards forfeited — $ — (1) $ 363.93 Unvested performance-based awards outstanding as of December 31, 2023 — $ — 13 $ 441.87 Awards granted — $ — 54 $ 302.61 Awards vested — $ — (3) $ 560.97 Awards forfeited — $ — (2) $ 546.48 Unvested performance-based awards outstanding as of December 31, 2024 — $ — 62 $ 310.37
Schedule of Fair Value of Performance-Based Awards Vested	The fair value of vested performance-based awards (measured at the vesting date) for the years ended December 31, 2024, 2023 and 2022 was as follows: For the Years Ended December 31, 2024 2023 2022 Equity-classified equity-settled Restricted stock $ — $ 2,237 $ — Restricted stock units 812 1,581 2,914 Total fair value of vested performance-based awards $ 812 $ 3,818 $ 2,914
Schedule of Assumptions Used	The Black-Scholes model relies on a number of key assumptions to calculate estimated fair values. The model incorporated the following weighted average assumptions for the years ended December 31, 2024, 2023 and 2022: For the Years Ended December 31, 2024 2023 2022 Expected volatility 43.2 % 48.0 % 86.8 % Expected term (in years) 0.50 0.50 0.50 Risk-free interest rate 4.9 % 5.3 % 3.0 % Expected dividends — % — % — %

INCOME TAXES (Tables)

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Schedule of Income Before Provision of Income Taxes	Income before provision for income taxes based on geographic location is disclosed in the table below: For the Years Ended December 31, 2024 2023 2022 Income before provision for income taxes: United States $ 193,031 $ 210,875 $ 78,564 Foreign 391,381 325,710 428,694 Total $ 584,412 $ 536,585 $ 507,258
Schedule of Provision for Income Taxes	The provision for income taxes consists of the following: For the Years Ended December 31, 2024 2023 2022 Current Federal $ 82,920 $ 54,763 $ 20,044 State 13,652 15,922 10,116 Foreign 97,502 86,012 99,847 Deferred Federal (54,772) (20,519) (26,379) State (3,176) (5,206) (3,483) Foreign (6,247) (11,470) (12,303) Total $ 129,879 $ 119,502 $ 87,842
Schedule of Effective Tax Rate Reconciliation	The reconciliation of the provision for income taxes at the federal statutory income tax rate to the Company’s effective income tax rate is as follows: For the Years Ended December 31, 2024 2023 2022 Provision for income taxes at federal statutory rate $ 122,727 $ 112,690 $ 106,514 Increase/(decrease) in taxes resulting from: GILTI and BEAT U.S. taxes 475 391 355 Excess tax benefits relating to stock-based compensation (22,448) (19,829) (35,119) Foreign tax expense and tax rate differential 17,290 5,208 4,902 Effect of permanent differences (2,488) 4,210 7,812 State taxes, net of federal benefit 12,279 12,347 9,323 Stock-based compensation expense 4,357 5,869 3,869 Impact of election to change entity classification (873) (2,109) (8,264) Tax credits (1,720) (1,824) (2,876) Other 280 2,549 1,326 Provision for income taxes $ 129,879 $ 119,502 $ 87,842
Schedule of Significant Components of Deferred Tax Assets and Liabilities	Significant components of the Company’s deferred tax assets and liabilities are as follows: As of December 31, 2024 As of December 31, 2023 Deferred tax assets: Property and equipment $ 10,622 $ 13,359 Accrued expenses 99,459 77,757 Accrued sales discounts 10,262 11,148 Stock-based compensation 39,492 36,488 Operating lease liabilities 39,240 40,549 R&D capitalization 121,546 77,601 Deferred consideration 11,278 13,762 Foreign currency exchange 18,290 2,688 Net operating loss carryforward 22,717 12,037 Other 18,806 15,112 Deferred tax assets $ 391,712 $ 300,501 Less: valuation allowance (10,183) (7,622) Total deferred tax assets $ 381,529 $ 292,879 Deferred tax liabilities: Property and equipment $ 11,941 $ 13,590 Intangible assets 126,443 27,914 Operating lease right-of-use assets 39,132 39,551 R&D credit carryforward 4,061 — U.S. taxation of foreign subsidiaries 17,158 13,955 Other 5,357 8,711 Total deferred tax liabilities $ 204,092 $ 103,721 Net deferred tax assets $ 177,437 $ 189,158
Schedule of Unrecognized Tax Benefits Roll Forward	A reconciliation of the beginning and ending balances of the gross unrecognized tax benefits changes for the years ended December 31, 2024, 2023 and 2022 are as follows: For the Years Ended December 31, 2024 2023 2022 Beginning Balance $ 11,471 $ 7,865 $ 8,155 Increases in tax positions from current year 1,407 3,307 4,739 Increases in tax positions from acquisitions — — 393 Increases in tax positions from prior years 1,043 716 2,447 Decreases in tax positions from prior years (2,251) (47) (6,945) Decreases due to lapse of statute of limitations (86) (438) (1,121) Currency (97) 68 197 Ending Balance $ 11,487 $ 11,471 $ 7,865

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	12 Months Ended
	Dec. 31, 2024
Earnings Per Share [Abstract]
Schedule of Computation of Basic and Diluted Earnings Per Share	The following table sets forth the computation of basic and diluted earnings per share of common stock as follows: For the Years Ended December 31, 2024 2023 2022 Numerator for basic and diluted earnings per share: Net income $ 454,533 $ 417,083 $ 419,416 Numerator for basic and diluted earnings per share $ 454,533 $ 417,083 $ 419,416 Denominator: Weighted average common shares for basic earnings per share 57,288 57,829 57,291 Net effect of dilutive stock options, restricted stock units, restricted stock awards and stock issuable under the ESPP 695 1,256 1,878 Weighted average common shares for diluted earnings per share 57,983 59,085 59,169 Net Income per share: Basic $ 7.93 $ 7.21 $ 7.32 Diluted $ 7.84 $ 7.06 $ 7.09

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2024
Segment Reporting [Abstract]
Schedule of Revenues from External Customers and Operating Profit Before Unallocated Expenses	Segment revenues from external clients and segment operating profit, as well as a reconciliation of segment operating profit to consolidated income before provision for income taxes is presented below: For the Year Ended December 31, 2024 North America Europe Total Segment revenues $ 2,866,339 $ 1,861,601 $ 4,727,940 Less: Cost of revenues (exclusive of depreciation and amortization) 1,915,851 1,290,317 3,206,168 Selling, general and administrative expenses 369,055 267,032 636,087 Depreciation and amortization expense 40,009 20,076 60,085 Segment operating profit $ 541,424 $ 284,176 $ 825,600 Unallocated costs: Stock-based compensation expense (167,297) Amortization of purchased intangibles (29,475) Other acquisition-related expenses (15,472) Other unallocated costs (68,772) Income from operations 544,584 Interest and other income, net 46,876 Foreign exchange loss (7,048) Income before provision for income taxes $ 584,412 For the Year Ended December 31, 2023 North America Europe Russia Total Segment revenues $ 2,765,022 $ 1,909,443 $ 16,075 $ 4,690,540 Less: Cost of revenues (exclusive of depreciation and amortization) 1,848,758 1,348,190 18,483 3,215,431 Selling, general and administrative expenses 361,589 285,722 2,531 649,842 Depreciation and amortization expense 43,645 25,307 131 69,083 Segment operating profit/(loss) $ 511,030 $ 250,224 $ (5,070) $ 756,184 Unallocated costs: Stock-based compensation expense (147,730) Amortization of purchased intangibles (22,717) Other acquisition-related expenses (2,768) Loss on sale of business (25,922) Other unallocated costs (55,808) Income from operations 501,239 Interest and other income, net 51,124 Foreign exchange loss (15,778) Income before provision for income taxes $ 536,585 For the Year Ended December 31, 2022 North America Europe Russia Total Segment revenues $ 2,898,554 $ 1,853,056 $ 73,088 $ 4,824,698 Less: Cost of revenues (exclusive of depreciation and amortization) 1,875,861 1,283,398 69,475 3,228,734 Selling, general and administrative expenses 404,276 323,151 16,083 743,510 Depreciation and amortization expense 41,516 27,465 1,068 70,049 Segment operating profit/(loss) 576,901 219,042 (13,538) 782,405 Unallocated costs: Stock-based compensation expense (99,909) Amortization of purchased intangibles (22,223) Other acquisition-related expenses (1,593) Other unallocated costs (85,714) Income from operations 572,966 Interest and other income, net 10,025 Foreign exchange loss (75,733) Income before provision for income taxes $ 507,258
Schedule of Physical Locations and Values of Long-Lived Assets	Physical locations and values of the Company’s long-lived assets are presented below: As of December 31, 2024 As of December 31, 2023 As of December 31, 2022 Ukraine $ 58,865 $ 62,653 $ 70,183 Belarus 45,900 49,875 57,311 United States 39,403 42,510 68,804 India 15,367 12,735 8,506 Poland 10,605 15,057 14,685 Hungary 4,157 6,683 8,552 Other 33,370 45,540 45,307 Total $ 207,667 $ 235,053 $ 273,348
Schedule of Revenues by Customer Location	The table below presents the Company’s revenues by client location for the years ended December 31, 2024, 2023 and 2022: For the Years Ended December 31, 2024 2023 2022 United States $ 2,680,063 $ 2,633,730 $ 2,761,050 United Kingdom 523,369 585,172 619,305 Switzerland 407,849 367,121 323,424 Germany 206,129 178,492 161,758 Netherlands 188,576 236,292 215,444 Canada 88,352 97,983 114,910 Russia — 13,290 64,745 Other locations 633,602 578,460 564,062 Revenues $ 4,727,940 $ 4,690,540 $ 4,824,698

ACCUMULATED OTHER COMPREHENSI_2

ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)	12 Months Ended
	Dec. 31, 2024
Equity [Abstract]
Schedule of Components of Accumulated Other Comprehensive Loss	The following table summarizes the changes in the accumulated balances for each component of accumulated other comprehensive loss: For the Years Ended December 31, 2024 2023 2022 Foreign currency translation Beginning balance $ (43,601) $ (101,780) $ (52,747) Foreign currency translation (71,584) 45,035 (45,295) Net loss reclassified into Loss on sale of business — 23,931 — Income tax benefit/(expense) 11,210 (10,787) (3,738) Foreign currency translation, net of tax (60,374) 58,179 (49,033) Ending balance $ (103,975) $ (43,601) $ (101,780) Cash flow hedging instruments Beginning balance $ 7,819 $ 8,306 $ (3,417) Unrealized (loss)/gain in fair value (18,570) 25,352 (49,233) Net (gain)/loss reclassified into Cost of revenues (exclusive of depreciation and amortization) (6,333) (25,695) 20,331 Net loss/(gain) reclassified into Foreign exchange loss 87 (234) 44,067 Income tax benefit/(expense) 5,732 90 (3,442) Cash flow hedging instruments, net of tax (19,084) (487) 11,723 Ending balance (1) $ (11,265) $ 7,819 $ 8,306 Defined benefit plans Beginning balance $ (3,258) $ (1,847) $ 1,957 Actuarial gains/(losses) 1,847 (1,856) (4,892) Income tax (expense)/benefit (213) 445 1,088 Defined benefit plans, net of tax 1,634 (1,411) (3,804) Ending balance $ (1,624) $ (3,258) $ (1,847) Accumulated other comprehensive loss $ (116,864) $ (39,040) $ (95,321) (1) As of December 31, 2024, the ending balance of net unrealized loss related to derivatives designated as cash flow hedges is expected to be reclassified into Cost of revenues (exclusive of depreciation and amortization) in the next twelve months.

ORGANIZATION AND SUMMARY OF S_3

ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Organization) (Details)	Dec. 31, 2024 continent
Accounting Policies [Abstract]
Number of continents in which entity operates	6

ORGANIZATION AND SUMMARY OF S_4

ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Property and Equipment) (Details)	Dec. 31, 2024
Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	2 years
Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	50 years

ORGANIZATION AND SUMMARY OF S_5

ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Goodwill and Other Indefinite-Lived Intangible Assets) (Details) $ in Thousands	Dec. 31, 2024 USD ($)
Accounting Policies [Abstract]
Indefinite-lived intangible assets other than goodwill	$ 0

ORGANIZATION AND SUMMARY OF S_6

ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Risks and Uncertainties) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Concentration Risk [Line Items]
Cash and cash equivalents	$ 1,286,267	$ 2,036,235	$ 1,681,344
Ukraine
Concentration Risk [Line Items]
Cash and cash equivalents	41,100
Belarus
Concentration Risk [Line Items]
Cash and cash equivalents	$ 37,500

IMPACT OF THE INVASION OF UKR_2

IMPACT OF THE INVASION OF UKRAINE (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Mar. 04, 2022
Unusual or Infrequent Item, or Both [Line Items]
Property and equipment, net		$ 207,667,000	$ 235,053,000
Operating lease right-of-use assets, net		128,244,000	134,898,000
Cost of revenues (exclusive of depreciation and amortization)		3,277,497,000	3,256,514,000	$ 3,286,683,000
Selling, general and administrative expenses		816,300,000	815,065,000	872,777,000
Impairment charges		417,000	6,019,000	23,619,000
Impairment, long-lived asset, held-for-use, statement of income or comprehensive income flag	Selling, general and administrative expenses
Bad debt (recovery)/expense		(4,402,000)	$ 4,047,000	12,394,000
Disposal group, not discontinued operation, gain (loss) on disposal, statement of income or comprehensive income flag			Gain (Loss) on Disposition of Business
Discontinued Operations, Disposed of by Sale
Unusual or Infrequent Item, or Both [Line Items]
Loss on sale			$ 25,900,000
Humanitarian Commitment
Unusual or Infrequent Item, or Both [Line Items]
Commitments related to operating lease agreements that have not yet commenced		24,600,000
Nonoperating expense		13,200,000	17,400,000	44,800,000
Cost of revenues (exclusive of depreciation and amortization)		2,400,000	11,300,000	29,000,000
Selling, general and administrative expenses		10,800,000	6,100,000	15,800,000
Ukraine
Unusual or Infrequent Item, or Both [Line Items]
Operating lease right-of-use assets, net		4,500,000
Ukraine | Cost of revenues (exclusive of depreciation and amortization)
Unusual or Infrequent Item, or Both [Line Items]
Standby resources expense		0	9,400,000	14,700,000
Ukraine | Selling, general and administrative expenses
Unusual or Infrequent Item, or Both [Line Items]
Standby resources expense		800,000	1,800,000	38,700,000
Ukraine | Other income/(expense)
Unusual or Infrequent Item, or Both [Line Items]
Impairment charges				1,300,000
Ukraine | Humanitarian Commitment
Unusual or Infrequent Item, or Both [Line Items]
Commitments related to operating lease agreements that have not yet commenced					$ 100,000,000
Ukraine | Building
Unusual or Infrequent Item, or Both [Line Items]
Property and equipment, net		58,900,000
Ukraine | Construction in Progress
Unusual or Infrequent Item, or Both [Line Items]
Property and equipment, net		52,300,000
Ukraine | Computer Equipment
Unusual or Infrequent Item, or Both [Line Items]
Property and equipment, net		3,400,000
Ukraine | Furniture and Fixtures
Unusual or Infrequent Item, or Both [Line Items]
Property and equipment, net		2,800,000
Ukraine | Leasehold Improvements
Unusual or Infrequent Item, or Both [Line Items]
Property and equipment, net		$ 400,000
Russia
Unusual or Infrequent Item, or Both [Line Items]
Impairment of property, plant and equipment	$ 15,100,000
Operating lease, impairment loss	3,800,000
Goodwill, Impairment Loss	$ 700,000
Bad debt (recovery)/expense				5,100,000
Russia | Employee separation costs
Unusual or Infrequent Item, or Both [Line Items]
Employee separation costs			$ 0	$ 17,100,000

ACQUISITIONS - Narrative (Detai

ACQUISITIONS - Narrative (Details) $ in Thousands				12 Months Ended
	Dec. 02, 2024 USD ($)	Nov. 01, 2024 USD ($) professional	Apr. 02, 2021 USD ($)	Dec. 31, 2024 USD ($) business	Dec. 31, 2023 USD ($) business	Dec. 31, 2022 USD ($)
Business Acquisition [Line Items]
Contingent consideration				$ 9,755	$ 14,850	$ 2,645
First Derivative
Business Acquisition [Line Items]
Purchase price including contingent consideration	$ 300,700
Acquisition related costs				6,300
Revenue of acquiree				12,200
Net income pro forma in acquiree				0
Amount			$ 124,809
First Derivative | Customer relationships
Business Acquisition [Line Items]
Amount			118,441
NEORIS
Business Acquisition [Line Items]
Purchase price including contingent consideration		$ 626,300
Equity interest acquired		99.70%
Business combination, number of professionals | professional		4,800
Acquisition related costs				7,800
Revenue of acquiree				53,700
Amount			259,000
NEORIS | Customer relationships
Business Acquisition [Line Items]
Amount			$ 249,000
Other 2024 Acquisitions
Business Acquisition [Line Items]
Purchase price including contingent consideration				74,200
Revenue of acquiree				32,600
Contingent consideration				$ 9,800
Number of completed acquisitions | business				3
Other 2024 Acquisitions | Customer relationships
Business Acquisition [Line Items]
Amount				$ 20,300
2023 Acquisitions
Business Acquisition [Line Items]
Purchase price including contingent consideration					42,600
Revenue of acquiree					8,200
Contingent consideration					$ 14,900
Number of completed acquisitions | business					2
2023 Acquisitions | Customer relationships
Business Acquisition [Line Items]
Amount					$ 13,900
2022 Acquisitions
Business Acquisition [Line Items]
Purchase price including contingent consideration					13,600
Revenue of acquiree						$ 8,700
Contingent consideration					$ 2,600
Number of completed acquisitions | business					2
2022 Acquisitions | Customer relationships
Business Acquisition [Line Items]
Amount					$ 3,400

ACQUISITIONS (Schedule of Fair

ACQUISITIONS (Schedule of Fair Values of Net Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Apr. 02, 2021
Business Acquisition [Line Items]
Goodwill	$ 1,181,575	$ 562,459	$ 529,072
First Derivative
Business Acquisition [Line Items]
Cash and cash equivalents				$ 9,160
Trade receivables and contract assets				46,678
Prepaid and other current assets				10,491
Goodwill				170,443
Intangible assets				124,809
Property and equipment and other noncurrent assets				3,595
Total assets acquired				365,176
Accounts payable, accrued expenses and other current liabilities				32,016
Other noncurrent liabilities				32,451
Total liabilities assumed				64,467
Noncontrolling interest in consolidated subsidiaries				0
Net assets acquired				300,709
NEORIS
Business Acquisition [Line Items]
Cash and cash equivalents				63,470
Trade receivables and contract assets				79,550
Prepaid and other current assets				8,225
Goodwill				406,756
Intangible assets				259,000
Property and equipment and other noncurrent assets				22,240
Total assets acquired				839,241
Accounts payable, accrued expenses and other current liabilities				126,791
Other noncurrent liabilities				84,743
Total liabilities assumed				211,534
Noncontrolling interest in consolidated subsidiaries				1,358
Net assets acquired				$ 626,349

ACQUISITIONS (Schedule of Acqui

ACQUISITIONS (Schedule of Acquired Finite-Lived Intangible Assets by Major Class) (Details) $ in Thousands	Apr. 02, 2021 USD ($)
First Derivative
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 124,809
NEORIS
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 259,000
Customer relationships | First Derivative
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	8 years
Amount	$ 118,441
Customer relationships | NEORIS
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	8 years
Amount	$ 249,000
Trade names | First Derivative
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	5 years
Amount	$ 6,368
Trade names | NEORIS
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	5 years
Amount	$ 10,000

ACQUISITIONS (Consolidated Pro

ACQUISITIONS (Consolidated Pro forma) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]
Revenues	$ 5,015,157	$ 5,013,488
Net income	$ 407,200	$ 399,973

GOODWILL AND INTANGIBLE ASSET_3

GOODWILL AND INTANGIBLE ASSETS, NET (Schedule of Goodwill by Reportable Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Goodwill [Roll Forward]
Balance beginning of period	$ 562,459	$ 529,072
Acquisitions	53,455	24,477
Purchase accounting adjustments	861	87
Effect of net foreign currency exchange rate changes	(12,399)	8,823
Balance end of period	1,181,575	562,459
NEORIS
Goodwill [Roll Forward]
Acquisitions	406,756
First Derivative acquisition
Goodwill [Roll Forward]
Acquisitions	170,443
North America
Goodwill [Roll Forward]
Balance beginning of period	241,860	216,960
Acquisitions	40,529	24,477
Purchase accounting adjustments	861	0
Effect of net foreign currency exchange rate changes	(515)	423
Balance end of period	652,066	241,860
North America | NEORIS
Goodwill [Roll Forward]
Acquisitions	333,538
North America | First Derivative acquisition
Goodwill [Roll Forward]
Acquisitions	35,793
Europe
Goodwill [Roll Forward]
Balance beginning of period	320,599	312,112
Acquisitions	12,926	0
Purchase accounting adjustments	0	87
Effect of net foreign currency exchange rate changes	(11,884)	8,400
Balance end of period	529,509	$ 320,599
Europe | NEORIS
Goodwill [Roll Forward]
Acquisitions	73,218
Europe | First Derivative acquisition
Goodwill [Roll Forward]
Acquisitions	$ 134,650

GOODWILL AND INTANGIBLE ASSET_4

GOODWILL AND INTANGIBLE ASSETS, NET (Goodwill Accumulated Impairment Losses) (Narrative) (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
North America
Goodwill [Line Items]
Accumulated goodwill impairment losses	$ 0	$ 0	$ 0
Europe
Goodwill [Line Items]
Accumulated goodwill impairment losses	$ 0	$ 0	$ 0

GOODWILL AND INTANGIBLE ASSET_5

GOODWILL AND INTANGIBLE ASSETS, NET (Schedule of Intangible Assets Components and Amortization Expense Recognized) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 581,862	$ 190,567
Accumulated amortization	(145,444)	(119,449)
Net  carrying amount	436,418	71,118
Total	$ 29,475	$ 22,717	$ 22,223
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted average life at acquisition (in years)	8 years	8 years
Gross carrying amount	$ 547,552	$ 171,735
Accumulated amortization	(128,148)	(103,651)
Net  carrying amount	419,404	68,084
Total	$ 26,798	$ 19,855	18,946
Trade names
Finite-Lived Intangible Assets [Line Items]
Weighted average life at acquisition (in years)	5 years	4 years
Gross carrying amount	$ 26,468	$ 10,798
Accumulated amortization	(10,017)	(9,588)
Net  carrying amount	16,451	1,210
Total	$ 1,437	$ 1,522	1,909
Software
Finite-Lived Intangible Assets [Line Items]
Weighted average life at acquisition (in years)	5 years	6 years
Gross carrying amount	$ 5,942	$ 6,134
Accumulated amortization	(5,656)	(4,825)
Net  carrying amount	286	1,309
Total	$ 1,002	$ 1,102	1,086
Contract royalties
Finite-Lived Intangible Assets [Line Items]
Weighted average life at acquisition (in years)	8 years	8 years
Gross carrying amount	$ 1,900	$ 1,900
Accumulated amortization	(1,623)	(1,385)
Net  carrying amount	277	515
Total	238	238	238
Assembled workforce
Finite-Lived Intangible Assets [Line Items]
Total	$ 0	$ 0	$ 44

GOODWILL AND INTANGIBLE ASSET_6

GOODWILL AND INTANGIBLE ASSETS, NET (Schedule of Estimated Amortization Expense) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
2025	$ 68,591
2026	64,529
2027	60,519
2028	54,424
2029	52,367
Thereafter	135,988
Net  carrying amount	$ 436,418	$ 71,118

FAIR VALUE MEASUREMENTS (Schedu

FAIR VALUE MEASUREMENTS (Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - Recurring - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Financial Assets:
Total assets measured at fair value on a recurring basis		$ 10,416
Financial Liabilities:
Contingent consideration	$ 32,978	23,150
Total liabilities measured at fair value on a recurring basis	47,628	23,398
Foreign exchange forward contracts - Designated as hedging instruments
Financial Assets:
Foreign exchange derivative assets		10,416
Financial Liabilities:
Foreign exchange derivative liabilities	14,650	248
Level 1
Financial Assets:
Total assets measured at fair value on a recurring basis		0
Financial Liabilities:
Contingent consideration	0	0
Total liabilities measured at fair value on a recurring basis	0	0
Level 1 | Foreign exchange forward contracts - Designated as hedging instruments
Financial Assets:
Foreign exchange derivative assets		0
Financial Liabilities:
Foreign exchange derivative liabilities	0	0
Level 2
Financial Assets:
Total assets measured at fair value on a recurring basis		10,416
Financial Liabilities:
Contingent consideration	0	0
Total liabilities measured at fair value on a recurring basis	14,650	248
Level 2 | Foreign exchange forward contracts - Designated as hedging instruments
Financial Assets:
Foreign exchange derivative assets		10,416
Financial Liabilities:
Foreign exchange derivative liabilities	14,650	248
Level 3
Financial Assets:
Total assets measured at fair value on a recurring basis		0
Financial Liabilities:
Contingent consideration	32,978	23,150
Total liabilities measured at fair value on a recurring basis	32,978	23,150
Level 3 | Foreign exchange forward contracts - Designated as hedging instruments
Financial Assets:
Foreign exchange derivative assets		0
Financial Liabilities:
Foreign exchange derivative liabilities	$ 0	$ 0

FAIR VALUE MEASUREMENTS (Narrat

FAIR VALUE MEASUREMENTS (Narrative) (Details) - Discount rate	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Maximum | Software Licenses
Business Acquisition, Contingent Consideration [Line Items]
Measurement input to determine fair value of contingent consideration		0.160
Other 2024 Acquisitions | Minimum
Business Acquisition, Contingent Consideration [Line Items]
Measurement input to determine fair value of contingent consideration	0.12
Other 2024 Acquisitions | Maximum
Business Acquisition, Contingent Consideration [Line Items]
Measurement input to determine fair value of contingent consideration	0.20
2023 Acquisitions purchase accounting adjustments | Minimum
Business Acquisition, Contingent Consideration [Line Items]
Measurement input to determine fair value of contingent consideration			0.130
2023 Acquisitions purchase accounting adjustments | Maximum
Business Acquisition, Contingent Consideration [Line Items]
Measurement input to determine fair value of contingent consideration			0.150
NEORIS
Business Acquisition, Contingent Consideration [Line Items]
Measurement input to determine fair value of contingent consideration			0.18

FAIR VALUE MEASUREMENTS (Sche_2

FAIR VALUE MEASUREMENTS (Schedule of Acquisition-Related Contingent Consideration Roll Forward) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Amount
Fair value, liability, recurring basis, unobservable input reconciliation, gain (loss), statement of income or comprehensive income flag	Interest and other income, net
NEORIS
Amount
Acquisition date fair value of contingent consideration	$ 4,654
Level 3
Amount
Contingent consideration, beginning of period	23,150	$ 24,308	$ 23,114
Changes in fair value of contingent consideration included in Interest and other income, net	5,699	2,814	11,101
Payment of contingent consideration for previously acquired businesses	(10,125)	(18,844)	(11,328)
Effect of net foreign currency exchange rate changes	(155)	22	(1,224)
Contingent consideration, end of period	32,978	23,150	24,308
Level 3 | 2022 Acquisitions
Amount
Acquisition date fair value of contingent consideration			$ 2,645
Level 3 | 2023 Acquisitions
Amount
Acquisition date fair value of contingent consideration		$ 14,850
Level 3 | Other 2024 Acquisitions
Amount
Acquisition date fair value of contingent consideration	$ 9,755

FAIR VALUE MEASUREMENTS (Sche_3

FAIR VALUE MEASUREMENTS (Schedule of Estimated Fair Values of Financial Assets and Liabilities Not Measured at Fair Value on a Recurring Basis) (Details) - Recurring - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Balance
Financial Assets:
Cash equivalents:	$ 22,107	$ 273,330
Financial Liabilities:
Deferred consideration for asset acquisition	33,187	46,954
Balance | Time deposits included in Short-term investments
Financial Assets:
Time deposits included in Short-term investments		60,739
Balance | Money market funds
Financial Assets:
Cash equivalents:	5,200	168,120
Balance | Time deposits included in Short-term investments
Financial Assets:
Cash equivalents:	16,907	105,210
Balance | Revolving Credit Facility | 2021 Credit Facility
Financial Liabilities:
Borrowings under 2021 Credit Agreement	25,000	25,000
Estimated Fair Value
Financial Assets:
Cash equivalents:	22,107	273,330
Financial Liabilities:
Deferred consideration for asset acquisition	33,187	46,954
Estimated Fair Value | Time deposits included in Short-term investments
Financial Assets:
Time deposits included in Short-term investments		60,739
Estimated Fair Value | Money market funds
Financial Assets:
Cash equivalents:	5,200	168,120
Estimated Fair Value | Time deposits included in Short-term investments
Financial Assets:
Cash equivalents:	16,907	105,210
Estimated Fair Value | Revolving Credit Facility | 2021 Credit Facility
Financial Liabilities:
Borrowings under 2021 Credit Agreement	25,000	25,000
Estimated Fair Value | Level 1
Financial Assets:
Cash equivalents:	5,200	168,120
Financial Liabilities:
Deferred consideration for asset acquisition	0	0
Estimated Fair Value | Level 1 | Time deposits included in Short-term investments
Financial Assets:
Time deposits included in Short-term investments		0
Estimated Fair Value | Level 1 | Money market funds
Financial Assets:
Cash equivalents:	5,200	168,120
Estimated Fair Value | Level 1 | Time deposits included in Short-term investments
Financial Assets:
Cash equivalents:	0	0
Estimated Fair Value | Level 1 | Revolving Credit Facility | 2021 Credit Facility
Financial Liabilities:
Borrowings under 2021 Credit Agreement	0	0
Estimated Fair Value | Level 2
Financial Assets:
Cash equivalents:	16,907	105,210
Financial Liabilities:
Deferred consideration for asset acquisition	33,187	46,954
Estimated Fair Value | Level 2 | Time deposits included in Short-term investments
Financial Assets:
Time deposits included in Short-term investments		60,739
Estimated Fair Value | Level 2 | Money market funds
Financial Assets:
Cash equivalents:	0	0
Estimated Fair Value | Level 2 | Time deposits included in Short-term investments
Financial Assets:
Cash equivalents:	16,907	105,210
Estimated Fair Value | Level 2 | Revolving Credit Facility | 2021 Credit Facility
Financial Liabilities:
Borrowings under 2021 Credit Agreement	25,000	25,000
Estimated Fair Value | Level 3
Financial Assets:
Cash equivalents:	0	0
Financial Liabilities:
Deferred consideration for asset acquisition	0	0
Estimated Fair Value | Level 3 | Time deposits included in Short-term investments
Financial Assets:
Time deposits included in Short-term investments		0
Estimated Fair Value | Level 3 | Money market funds
Financial Assets:
Cash equivalents:	0	0
Estimated Fair Value | Level 3 | Time deposits included in Short-term investments
Financial Assets:
Cash equivalents:	0	0
Estimated Fair Value | Level 3 | Revolving Credit Facility | 2021 Credit Facility
Financial Liabilities:
Borrowings under 2021 Credit Agreement	$ 0	$ 0

FAIR VALUE MEASUREMENTS (Non-Ma

FAIR VALUE MEASUREMENTS (Non-Marketable Securities Without Readily Determinable Fair Values) (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Carrying amount of investments in equity securities	$ 38.5	$ 31.7

DERIVATIVE FINANCIAL INSTRUME_3

DERIVATIVE FINANCIAL INSTRUMENTS (Schedule of Fair Value of Derivative Instruments) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Foreign exchange loss		$ 7,048,000	$ 15,778,000	$ 75,733,000
Foreign Exchange Forward | Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest
Derivatives, Fair Value [Line Items]
Foreign exchange loss	$ 43,900,000
Foreign exchange forward contracts - Designated as hedging instruments
Derivatives, Fair Value [Line Items]
Financial collateral required to be posted		0
Foreign exchange forward contracts - Designated as hedging instruments | Designated as Hedging Instrument | Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Asset Derivatives		0	10,416,000
Foreign exchange forward contracts - Designated as hedging instruments | Designated as Hedging Instrument | Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives		$ 14,650,000	$ 248,000

PROPERTY AND EQUIPMENT, NET (Sc

PROPERTY AND EQUIPMENT, NET (Schedule of Components of Property and Equipment and Depreciation) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 428,256	$ 432,579
Less: accumulated depreciation and amortization	(220,589)	(197,526)
Total	$ 207,667	235,053
Computer hardware
Property, Plant and Equipment [Line Items]
Weighted Average Useful Life (in years)	4 years
Property and equipment, gross	$ 146,966	155,991
Purchased computer software
Property, Plant and Equipment [Line Items]
Weighted Average Useful Life (in years)	4 years
Property and equipment, gross	$ 91,630	88,644
Buildings
Property, Plant and Equipment [Line Items]
Weighted Average Useful Life (in years)	46 years
Property and equipment, gross	$ 55,057	54,899
Leasehold improvements
Property, Plant and Equipment [Line Items]
Weighted Average Useful Life (in years)	7 years
Property and equipment, gross	$ 39,278	37,189
Furniture, fixture and other equipment
Property, Plant and Equipment [Line Items]
Weighted Average Useful Life (in years)	7 years
Property and equipment, gross	$ 21,191	22,583
Office equipment
Property, Plant and Equipment [Line Items]
Weighted Average Useful Life (in years)	7 years
Property and equipment, gross	$ 18,394	18,315
Land improvements
Property, Plant and Equipment [Line Items]
Weighted Average Useful Life (in years)	18 years
Property and equipment, gross	$ 2,137	2,142
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,339	1,339
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 52,264	$ 51,477

PROPERTY AND EQUIPMENT, NET - N

PROPERTY AND EQUIPMENT, NET - Narrative (Details) $ in Thousands		12 Months Ended
	Nov. 17, 2021 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense		$ 59,400	$ 68,200	$ 69,000
Payments to acquire an office building		32,146	28,415	81,629
Software Licenses
Property, Plant and Equipment [Line Items]
Purchase price			26,700	66,100
Payment to acquire assets			6,800	13,300
Deferred contingent consideration			19,900	$ 52,800
Derecognition of intangible assets		1,200	20,800
Decrease in deferred payments for asset acquisition		1,200	$ 21,400
Software Licenses | Discount rate
Property, Plant and Equipment [Line Items]
Discount rate			0.055	0.052
Minsk, Belarus | Buildings
Property, Plant and Equipment [Line Items]
Leased building, before accumulated depreciation		10,600	$ 5,900
Leased building, accumulated depreciation		4,000	1,900
Depreciation expense		$ 800	$ 500	$ 100
Ukraine | Construction in progress
Property, Plant and Equipment [Line Items]
Payments to acquire an office building	$ 50,100

ACCRUED EXPENSES AND OTHER CU_3

ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Schedule of Components of Accrued expenses and other current liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Deferred revenue	$ 59,321	$ 27,988
Value added taxes payable	43,739	39,852
Contingent consideration, current (Note 5)	14,660	9,650
Foreign exchange derivative liabilities	14,650	248
Other current liabilities and accrued expenses	68,986	47,085
Total	$ 201,356	$ 124,823

LEASES (Narrative) (Details)

LEASES (Narrative) (Details) $ in Millions	Dec. 31, 2024 USD ($)
Lessee, Lease, Description [Line Items]
Commitments related to operating lease agreements that have not yet commenced	$ 2.5
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	1 month 6 days
Lease term of lease agreements that have not yet commenced	1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	7 years 1 month 6 days
Lease term of lease agreements that have not yet commenced	3 years

LEASES (Schedule of Components

LEASES (Schedule of Components of Lease Expenses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Lease, Cost [Line Items]
Total lease cost	$ 58,221	$ 66,582	$ 67,436
Selling, general and administrative expenses
Lease, Cost [Line Items]
Operating lease cost	43,524	47,824	51,775
Variable lease cost	10,912	13,156	10,372
Short-term lease cost	$ 3,785	$ 5,602	$ 5,289

LEASES (Schedule of Supplementa

LEASES (Schedule of Supplemental Cash Flow Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows used for operating leases	$ 45,640	$ 52,373
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	23,771	18,063
Non-cash net increase/ (decrease) due to lease modifications:
Operating lease right-of-use assets	13,522	7,595
Operating lease liabilities	$ 13,557	$ 9,198

LEASES (Schedule of Weighted Av

LEASES (Schedule of Weighted Average Remaining Lease Term and Discount Rate) (Details)	Dec. 31, 2024	Dec. 31, 2023
Weighted average remaining lease term, in years:
Operating leases	4 years 3 months 18 days	5 years
Weighted average discount rate:
Operating leases	4.30%	4.10%

LEASES (Schedule of Maturity of

LEASES (Schedule of Maturity of Operating Lease Liabilities) (Details) $ in Thousands	Dec. 31, 2024 USD ($)
Leases [Abstract]
2025	$ 44,455
2026	35,972
2027	26,118
2028	20,855
2029	11,765
Thereafter	10,968
Total lease payments	150,133
Less: imputed interest	(12,073)
Total	$ 138,060

DEBT (Narrative) (Details)

DEBT (Narrative) (Details) - Revolving Credit Facility - Line of Credit	Oct. 21, 2021 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Oct. 21, 2021 GBP (£)
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 700,000,000	$ 700,000,000	$ 700,000,000	£ 150,000,000
Additional potential borrowing capacity (up to)	$ 1,000,000,000
Overnight Bank Funding Rate
Debt Instrument [Line Items]
Variable interest rate spread	0.50%
SOFR
Debt Instrument [Line Items]
Variable interest rate spread	1%

DEBT (Schedule of Outstanding D

DEBT (Schedule of Outstanding Debt And Borrowing Capacity) (Details) - Revolving Credit Facility - Line of Credit	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Oct. 21, 2021 USD ($)	Oct. 21, 2021 GBP (£)
Debt Instrument [Line Items]
Outstanding debt	$ 25,000,000	$ 25,000,000
Interest rate	5.40%	6.30%
Available borrowing capacity	$ 675,000,000	$ 675,000,000
Maximum borrowing capacity	$ 700,000,000	$ 700,000,000	$ 700,000,000	£ 150,000,000

PENSION AND POSTRETIREMENT BE_3

PENSION AND POSTRETIREMENT BENEFITS (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Retirement Benefits [Abstract]
Defined contribution plan expenses recognized	$ 31.5	$ 31.4	$ 29
Defined benefit plan expenses recognized	$ 9	$ 9.4	$ 8.3

PENSION AND POSTRETIREMENT BE_4

PENSION AND POSTRETIREMENT BENEFITS (Schedule of Defined Benefit Plans Disclosures) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Unfunded status	$ 29,577	$ 15,910
Accrued compensation and benefits expenses
Defined Benefit Plan Disclosure [Line Items]
Unfunded status	2,105	998
Other noncurrent liabilities
Defined Benefit Plan Disclosure [Line Items]
Unfunded status	$ 27,472	$ 14,912

COST OPTIMIZATION PROGRAMS (Nar

COST OPTIMIZATION PROGRAMS (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Restructuring Cost and Reserve [Line Items]
Charges	$ 31,270	$ 28,990
Facility Closing
Restructuring Cost and Reserve [Line Items]
Charges		$ 6,100
2024 Cost Optimization Program
Restructuring Cost and Reserve [Line Items]
Expected cost remaining	$ 7,000

COST OPTIMIZATION PROGRAMS (Act

COST OPTIMIZATION PROGRAMS (Activity in Restructuring Reserves) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Restructuring Reserve [Roll Forward]
Balance at December 31, 2023	$ 6,966	$ 0
Charges	31,270	28,990
Payments Made	(36,473)	(22,024)
Balance at December 31. 2024	$ 1,763	$ 6,966
Restructuring charges, statement of income or comprehensive income flag	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Employee separation costs | 2024 Cost Optimization Program
Restructuring Reserve [Roll Forward]
Balance at December 31, 2023	$ 0
Charges	21,969
Payments Made	(20,206)
Balance at December 31. 2024	1,763	$ 0
Employee separation costs | 2023 Cost Optimization Program
Restructuring Reserve [Roll Forward]
Balance at December 31, 2023	6,966	0
Charges	9,015	28,990
Payments Made	(15,981)	(22,024)
Balance at December 31. 2024	0	6,966
Contract Termination | 2024 Cost Optimization Program
Restructuring Reserve [Roll Forward]
Balance at December 31, 2023	0
Charges	286
Payments Made	(286)
Balance at December 31. 2024	$ 0	$ 0

REVENUES (Schedule of Disaggreg

REVENUES (Schedule of Disaggregation of Revenues) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Revenues	$ 4,727,940	$ 4,690,540	$ 4,824,698
Revenues from performance obligations satisfied in previous period	13,600	5,800	7,500
Transferred over time
Disaggregation of Revenue [Line Items]
Revenues	4,708,622	4,674,989	4,810,148
Transferred at a point of time
Disaggregation of Revenue [Line Items]
Revenues	19,318	15,551	14,550
Time-and-material
Disaggregation of Revenue [Line Items]
Revenues	3,900,952	4,082,503	4,239,580
Fixed-price
Disaggregation of Revenue [Line Items]
Revenues	797,231	579,230	560,467
Licensing and other revenues
Disaggregation of Revenue [Line Items]
Revenues	29,757	28,807	24,651
Financial Services
Disaggregation of Revenue [Line Items]
Revenues	1,022,617	1,018,433	1,026,686
Consumer Goods, Retail & Travel
Disaggregation of Revenue [Line Items]
Revenues	1,013,138	1,072,950	1,092,224
Software & Hi-Tech
Disaggregation of Revenue [Line Items]
Revenues	702,367	707,720	793,261
Business Information & Media
Disaggregation of Revenue [Line Items]
Revenues	674,597	753,981	809,952
Life Sciences & Healthcare
Disaggregation of Revenue [Line Items]
Revenues	574,605	489,914	507,367
Emerging Verticals
Disaggregation of Revenue [Line Items]
Revenues	740,616	647,542	595,208
North America
Disaggregation of Revenue [Line Items]
Revenues	2,866,339	2,765,022	2,898,554
North America | Transferred over time
Disaggregation of Revenue [Line Items]
Revenues	2,851,319	2,751,937	2,888,342
North America | Transferred at a point of time
Disaggregation of Revenue [Line Items]
Revenues	15,020	13,085	10,212
North America | Time-and-material
Disaggregation of Revenue [Line Items]
Revenues	2,423,554	2,457,545	2,615,213
North America | Fixed-price
Disaggregation of Revenue [Line Items]
Revenues	419,361	283,183	263,603
North America | Licensing and other revenues
Disaggregation of Revenue [Line Items]
Revenues	23,424	24,294	19,738
North America | Financial Services
Disaggregation of Revenue [Line Items]
Revenues	519,986	538,837	522,970
North America | Consumer Goods, Retail & Travel
Disaggregation of Revenue [Line Items]
Revenues	450,162	472,350	505,227
North America | Software & Hi-Tech
Disaggregation of Revenue [Line Items]
Revenues	525,091	552,492	655,122
North America | Business Information & Media
Disaggregation of Revenue [Line Items]
Revenues	449,449	429,800	467,664
North America | Life Sciences & Healthcare
Disaggregation of Revenue [Line Items]
Revenues	488,455	429,245	454,102
North America | Emerging Verticals
Disaggregation of Revenue [Line Items]
Revenues	433,196	342,298	293,469
Europe
Disaggregation of Revenue [Line Items]
Revenues	1,861,601	1,909,443	1,853,056
Europe | Transferred over time
Disaggregation of Revenue [Line Items]
Revenues	1,857,303	1,907,010	1,849,011
Europe | Transferred at a point of time
Disaggregation of Revenue [Line Items]
Revenues	4,298	2,433	4,045
Europe | Time-and-material
Disaggregation of Revenue [Line Items]
Revenues	1,477,398	1,613,790	1,578,786
Europe | Fixed-price
Disaggregation of Revenue [Line Items]
Revenues	377,870	291,174	269,669
Europe | Licensing and other revenues
Disaggregation of Revenue [Line Items]
Revenues	6,333	4,479	4,601
Europe | Financial Services
Disaggregation of Revenue [Line Items]
Revenues	502,631	472,146	460,858
Europe | Consumer Goods, Retail & Travel
Disaggregation of Revenue [Line Items]
Revenues	562,976	596,830	571,437
Europe | Software & Hi-Tech
Disaggregation of Revenue [Line Items]
Revenues	177,276	153,683	136,273
Europe | Business Information & Media
Disaggregation of Revenue [Line Items]
Revenues	225,148	323,985	341,344
Europe | Life Sciences & Healthcare
Disaggregation of Revenue [Line Items]
Revenues	86,150	60,549	52,465
Europe | Emerging Verticals
Disaggregation of Revenue [Line Items]
Revenues	307,420	302,250	290,679
Russia
Disaggregation of Revenue [Line Items]
Revenues		16,075	73,088
Russia | Transferred over time
Disaggregation of Revenue [Line Items]
Revenues		16,042	72,795
Russia | Transferred at a point of time
Disaggregation of Revenue [Line Items]
Revenues		33	293
Russia | Time-and-material
Disaggregation of Revenue [Line Items]
Revenues		11,168	45,581
Russia | Fixed-price
Disaggregation of Revenue [Line Items]
Revenues		4,873	27,195
Russia | Licensing and other revenues
Disaggregation of Revenue [Line Items]
Revenues		34	312
Russia | Financial Services
Disaggregation of Revenue [Line Items]
Revenues		7,450	42,858
Russia | Consumer Goods, Retail & Travel
Disaggregation of Revenue [Line Items]
Revenues		3,770	15,560
Russia | Software & Hi-Tech
Disaggregation of Revenue [Line Items]
Revenues		1,545	1,866
Russia | Business Information & Media
Disaggregation of Revenue [Line Items]
Revenues		196	944
Russia | Life Sciences & Healthcare
Disaggregation of Revenue [Line Items]
Revenues		120	800
Russia | Emerging Verticals
Disaggregation of Revenue [Line Items]
Revenues		2,994	11,060
Americas
Disaggregation of Revenue [Line Items]
Revenues	2,834,704	2,742,662	2,887,204
Americas | North America
Disaggregation of Revenue [Line Items]
Revenues	2,726,757	2,645,174	2,792,156
Americas | Europe
Disaggregation of Revenue [Line Items]
Revenues	107,947	96,857	92,244
Americas | Russia
Disaggregation of Revenue [Line Items]
Revenues		631	2,804
EMEA
Disaggregation of Revenue [Line Items]
Revenues	1,793,198	1,822,782	1,737,919
EMEA | North America
Disaggregation of Revenue [Line Items]
Revenues	137,370	116,054	95,706
EMEA | Europe
Disaggregation of Revenue [Line Items]
Revenues	1,655,828	1,706,728	1,642,114
EMEA | Russia
Disaggregation of Revenue [Line Items]
Revenues		0	99
APAC
Disaggregation of Revenue [Line Items]
Revenues	100,038	102,138	120,370
APAC | North America
Disaggregation of Revenue [Line Items]
Revenues	2,212	3,248	3,837
APAC | Europe
Disaggregation of Revenue [Line Items]
Revenues	97,826	98,890	116,533
APAC | Russia
Disaggregation of Revenue [Line Items]
Revenues		0	0
CEE
Disaggregation of Revenue [Line Items]
Revenues	0	22,958	79,205
CEE | North America
Disaggregation of Revenue [Line Items]
Revenues	0	546	6,855
CEE | Europe
Disaggregation of Revenue [Line Items]
Revenues	$ 0	6,968	2,165
CEE | Russia
Disaggregation of Revenue [Line Items]
Revenues		$ 15,444	$ 70,185

REVENUES (Schedule of Timing of

REVENUES (Schedule of Timing of Revenue Recognition) (Details) - Fixed-price $ in Thousands	Dec. 31, 2024 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Estimated revenues expected to be recognized in the future related to performance obligations	$ 32,852
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Estimated revenues expected to be recognized in the future related to performance obligations	$ 30,223
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Estimated revenues expected to be recognized in the future related to performance obligations	$ 2,629
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Estimated revenues expected to be recognized in the future related to performance obligations	$ 0
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Estimated revenues expected to be recognized in the future related to performance obligations	$ 0
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year

REVENUES (Schedule of Contract

REVENUES (Schedule of Contract Assets and Liabilities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Change in Contract with Customer, Asset and Liability [Abstract]
Revenues recognized	$ 21,300	$ 30,600
Trade receivables and contract assets
Change in Contract with Customer, Asset and Liability [Abstract]
Contract assets	52,897	24,309
Accrued expenses and other current liabilities
Change in Contract with Customer, Asset and Liability [Abstract]
Contract liabilities	59,321	27,988
Other noncurrent liabilities
Change in Contract with Customer, Asset and Liability [Abstract]
Contract liabilities	$ 741	$ 951

POLAND RESEARCH AND DEVELOPME_2

POLAND RESEARCH AND DEVELOPMENT INCENTIVES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Prepaid expenses and other current assets
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development incentive income (expense)	$ 23.1
Other noncurrent assets
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development incentive income (expense)	34.3
2023 Research And Development Activities
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development incentive income (expense)	$ 23.5
2024 Research And Development Activities
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development incentive income (expense)		$ 45.4

STOCKHOLDERS_ EQUITY (Schedule

STOCKHOLDERS’ EQUITY (Schedule of Components of Stock-Based Compensation Expenses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 167,297	$ 147,730	$ 99,909
Cost of revenues (exclusive of depreciation and amortization)
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	80,944	68,797	47,470
Selling, general and administrative expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 86,353	$ 78,933	$ 52,439

STOCKHOLDERS_ EQUITY (Equity Pl

STOCKHOLDERS’ EQUITY (Equity Plans) (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2024 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period	10 years
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance (in shares)	426
Maximum salary contribution, percent	10%
Offering period	6 months
ESPP purchase price of common stock, percent of market price	85%
Company Personnel
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance (in shares)	2,345
Non-Employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance (in shares)	499

STOCKHOLDERS_ EQUITY (Schedul_2

STOCKHOLDERS’ EQUITY (Schedule of Stock Option Activity) (Details) - Stock Options - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Number of Options
Beginning balance (in shares)	1,629,000	1,923,000	2,318,000
Options granted (in shares)	81,000	114,000	133,000
Options exercised (in shares)	(483,000)	(397,000)	(514,000)
Options forfeited (in shares)	(16,000)	(6,000)	(11,000)
Options expired (in shares)	(5,000)	(5,000)	(3,000)
Ending balance (in shares)	1,206,000	1,629,000	1,923,000
Options vested and exercisable number of options (in shares)	973,000
Options expected to vest number of options (in shares)	225,000
Weighted Average Exercise Price
Options outstanding at beginning of period (in dollars per share)	$ 125.88	$ 98.92	$ 77.79
Options granted (in dollars per share)	296.87	295.73	277.85
Options exercised (in dollars per share)	46.71	39.01	44.02
Options forfeited (in dollars per share)	297.52	316.91	350.19
Options expired (in dollars per share)	371.84	340.13	128.11
Options outstanding at end of period (in dollars per share)	165.78	$ 125.88	$ 98.92
Options vested and exercisable weighted average price (in dollars per share)	133.49
Options expected to vest weighted average price (in dollars per share)	$ 300.46
Aggregate Intrinsic Value
Options outstanding, beginning of period	$ 289,552	$ 447,503	$ 1,369,132
Options outstanding, end of period	112,839	$ 289,552	$ 447,503
Options vested and exercisable, aggregate intrinsic value	112,814
Options expected to vest, aggregate intrinsic value	$ 24
Weighted Average Remaining Contractual Term (in years)
Options outstanding, weighted average remaining contractual term	3 years 9 months 18 days
Options vested and exercisable, weighted average remaining contractual term	2 years 8 months 12 days
Expected to vest, weighted average remaining contractual term	8 years 2 months 12 days

STOCKHOLDERS_ EQUITY (Schedul_3

STOCKHOLDERS’ EQUITY (Schedule of Black Scholes Valuation Model Assumptions) (Details)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	52.10%	50.20%	46.70%
Expected term (in years)	6 years 3 months	6 years 2 months 23 days	6 years 2 months 26 days
Risk-free interest rate	4.30%	3.60%	2.60%
Expected dividends	0%	0%	0%
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	43.20%	48%	86.80%
Expected term (in years)	6 months	6 months	6 months
Risk-free interest rate	4.90%	5.30%	3%
Expected dividends	0%	0%	0%

STOCKHOLDERS_ EQUITY (Stock Opt

STOCKHOLDERS’ EQUITY (Stock Options Additional Information) (Details) - Stock Options - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant-date fair value (in dollars per share)	$ 164.47	$ 156.11	$ 134.29
Total intrinsic value of options exercised	$ 113.3	$ 89.8	$ 154.4
Vesting period (in years)	4 years
Unrecognized compensation cost net of estimated forfeitures	$ 16.8
Unrecognized compensation cost, period for recognition	2 years 1 month 6 days

STOCKHOLDERS_ EQUITY (Schedul_4

STOCKHOLDERS’ EQUITY (Schedule of Restricted Stock and Restricted Stock Units Activity) (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Service Period | Equity-classified equity-settled | Restricted stock
Number of Shares
Unvested awards outstanding at period start (in shares)	0	0	9
Awards granted (in shares)	0	0	0
Awards modified (in shares)	0	0	0
Awards vested (in shares)	0	0	(9)
Awards forfeited (in shares)	0	0	0
Unvested awards outstanding at period end (in shares)	0	0	0
Weighted Average Grant Date Fair Value Per Share
Unvested awards outstanding at period start (in dollars per share)	$ 0	$ 0	$ 167.18
Awards granted (in dollars per share)	0	0	0
Awards modified (in dollars per share)	0	0	0
Awards vested (in dollars per share)	0	0	167.18
Awards forfeited (in dollars per share)	0	0	0
Unvested awards outstanding at period end (in dollars per share)	$ 0	$ 0	$ 0
Service Period | Equity-classified equity-settled | Equity-Classified Equity-Settled Restricted Stock Units | Restricted stock units
Number of Shares
Unvested awards outstanding at period start (in shares)	1,074	916	576
Awards granted (in shares)	617	607	655
Awards modified (in shares)	1	(15)	(3)
Awards vested (in shares)	(378)	(329)	(244)
Awards forfeited (in shares)	(102)	(105)	(68)
Unvested awards outstanding at period end (in shares)	1,212	1,074	916
Weighted Average Grant Date Fair Value Per Share
Unvested awards outstanding at period start (in dollars per share)	$ 292.45	$ 291.19	$ 277.38
Awards granted (in dollars per share)	283.21	288.49	287.13
Awards modified (in dollars per share)	366.27	278.52	387.74
Awards vested (in dollars per share)	289.48	278.25	235.96
Awards forfeited (in dollars per share)	299.49	304.91	328.81
Unvested awards outstanding at period end (in dollars per share)	$ 288.12	$ 292.45	$ 291.19
Service Period | Liability-classified cash-settled | Liability-Classified Cash-Settled Restricted Stock Units | Restricted stock units
Number of Shares
Unvested awards outstanding at period start (in shares)	98	99	112
Awards granted (in shares)	34	36	51
Awards modified (in shares)	(1)	15	3
Awards vested (in shares)	(39)	(46)	(56)
Awards forfeited (in shares)	(3)	(6)	(11)
Unvested awards outstanding at period end (in shares)	89	98	99
Weighted Average Grant Date Fair Value Per Share
Unvested awards outstanding at period start (in dollars per share)	$ 287.36	$ 257.74	$ 217.28
Awards granted (in dollars per share)	298.35	298.81	269.60
Awards modified (in dollars per share)	114.30	305.59	220
Awards vested (in dollars per share)	273.28	242.07	184.96
Awards forfeited (in dollars per share)	295.86	254.82	260.59
Unvested awards outstanding at period end (in dollars per share)	$ 298.84	$ 287.36	$ 257.74
Performance Targets | Equity-classified equity-settled | Equity-Classified Equity-Settled Restricted Stock Units | Restricted stock
Number of Shares
Unvested awards outstanding at period start (in shares)	0	9	9
Awards granted (in shares)	0	0	0
Awards vested (in shares)	0	(9)	0
Awards forfeited (in shares)	0	0	0
Unvested awards outstanding at period end (in shares)	0	0	9
Weighted Average Grant Date Fair Value Per Share
Unvested awards outstanding at period start (in dollars per share)	$ 0	$ 165.87	$ 165.87
Awards granted (in dollars per share)	0	0	0
Awards vested (in dollars per share)	0	165.87	0
Awards forfeited (in dollars per share)	0	0	0
Unvested awards outstanding at period end (in dollars per share)	$ 0	$ 0	$ 165.87
Performance Targets | Equity-classified equity-settled | Equity-Classified Equity-Settled Restricted Stock Units | Restricted stock units
Number of Shares
Unvested awards outstanding at period start (in shares)	13	15	23
Awards granted (in shares)	54	6	6
Awards vested (in shares)	(3)	(7)	(9)
Awards forfeited (in shares)	(2)	(1)	(5)
Unvested awards outstanding at period end (in shares)	62	13	15
Weighted Average Grant Date Fair Value Per Share
Unvested awards outstanding at period start (in dollars per share)	$ 441.87	$ 412.60	$ 339.69
Awards granted (in dollars per share)	302.61	258.19	418.26
Awards vested (in dollars per share)	560.97	229.98	238.96
Awards forfeited (in dollars per share)	546.48	363.93	377.87
Unvested awards outstanding at period end (in dollars per share)	$ 310.37	$ 441.87	$ 412.60

STOCKHOLDERS_ EQUITY (Schedul_5

STOCKHOLDERS’ EQUITY (Schedule of Fair Value of Restricted Stock and Restricted Stock Units Vested) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Service Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of vested service-based awards	$ 116,555	$ 107,647	$ 89,738
Performance Targets
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of vested service-based awards	812	3,818	2,914
Equity-classified equity-settled | Service Period | Equity-Classified Equity-Settled Restricted Stock Units | Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of vested service-based awards	0	0	3,990
Equity-classified equity-settled | Service Period | Equity-Classified Equity-Settled Restricted Stock Units | Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of vested service-based awards	105,100	94,418	69,510
Equity-classified equity-settled | Performance Targets | Equity-Classified Equity-Settled Restricted Stock Units | Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of vested service-based awards	0	2,237	0
Equity-classified equity-settled | Performance Targets | Equity-Classified Equity-Settled Restricted Stock Units | Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of vested service-based awards	812	1,581	2,914
Liability-classified cash-settled | Service Period | Liability-Classified Cash-Settled Restricted Stock Units | Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of vested service-based awards	$ 11,455	$ 13,229	$ 16,238

STOCKHOLDERS_ EQUITY (Restricte

STOCKHOLDERS’ EQUITY (Restricted Stock and Restricted Stock Units Additional Information) (Details) - Restricted stock units - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Equity-classified equity-settled | Service Period | Equity-Classified Equity-Settled Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 233
Unrecognized compensation cost, period for recognition	2 years 6 months
Equity-classified equity-settled | Performance Targets | Equity-Classified Equity-Settled Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued in period (in shares)	42
Unrecognized compensation cost	$ 10.4
Unrecognized compensation cost, period for recognition	1 year 7 months 6 days
Vesting period (in years)	3 years
Share-based compensation arrangement by share-based payment award, equity instruments other than options, not considered granted in period	32
Liability-classified cash-settled | Service Period | Liability-Classified Cash-Settled Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 14.5
Unrecognized compensation cost, period for recognition	2 years 3 months 18 days
Liability-classified cash-settled | Service Period | Liability-Classified Cash-Settled Restricted Stock Units | Accrued compensation and benefits expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Liability associated with stock-based awards current	$ 4.8	$ 8.7

STOCKHOLDERS_ EQUITY (Employee

STOCKHOLDERS’ EQUITY (Employee Stock Purchase Plan Additional Information) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share price (in dollars per share)	$ 212.17	$ 248.23	$ 315.60
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Offering period	6 months
Weighted average grant-date fair value (in dollars per share)	$ 56.34	$ 69.74	$ 119.76
ESPP purchase of common stock (in shares)	181	173	120
ESPP stock based compensation expense	$ 10	$ 12.6	$ 13.9
Unrecognized compensation cost	$ 3.5
Unrecognized compensation cost, period for recognition	3 months 29 days

STOCKHOLDERS_ EQUITY (Share Rep

STOCKHOLDERS’ EQUITY (Share Repurchases Additional Information) (Details) - USD ($) shares in Thousands		12 Months Ended
	Aug. 01, 2024	Dec. 31, 2024	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Authorized repurchase program, amount	$ 500,000,000
Share repurchase program term	24 months
Shares acquired during period (in shares)		1,854	686
Value of shares acquired		$ 398,000,000	$ 164,900,000
Stock repurchases, remaining balance		$ 437,000,000

INCOME TAXES (Schedule of Incom

INCOME TAXES (Schedule of Income Before Provision for Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income before provision for income taxes:
United States	$ 193,031	$ 210,875	$ 78,564
Foreign	391,381	325,710	428,694
Income before provision for income taxes	$ 584,412	$ 536,585	$ 507,258

INCOME TAXES (Schedule of Provi

INCOME TAXES (Schedule of Provision for Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current
Federal	$ 82,920	$ 54,763	$ 20,044
State	13,652	15,922	10,116
Foreign	97,502	86,012	99,847
Deferred
Federal	(54,772)	(20,519)	(26,379)
State	(3,176)	(5,206)	(3,483)
Foreign	(6,247)	(11,470)	(12,303)
Total	$ 129,879	$ 119,502	$ 87,842

INCOME TAXES (U.S. Tax Act Effe

INCOME TAXES (U.S. Tax Act Effect) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2017
Schedule of Change in Tax Legislation [Line Items]
Accumulated undistributed foreign earnings indefinitely reinvested	$ 1,058
U.S. Tax Cuts and Jobs Act
Schedule of Change in Tax Legislation [Line Items]
Income tax rate on foreign cash and certain other net current assets		15.50%
Income tax rate on remaining earnings		8%
Transition tax for accumulated foreign earnings	$ 14.3

INCOME TAXES (Effective Tax Rat

INCOME TAXES (Effective Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Provision for income taxes at federal statutory rate	$ 122,727	$ 112,690	$ 106,514
Increase/(decrease) in taxes resulting from:
GILTI and BEAT U.S. taxes	475	391	355
Excess tax benefits relating to stock-based compensation	(22,448)	(19,829)	(35,119)
Foreign tax expense and tax rate differential	17,290	5,208	4,902
Effect of permanent differences	(2,488)	4,210	7,812
State taxes, net of federal benefit	12,279	12,347	9,323
Stock-based compensation expense	4,357	5,869	3,869
Impact of election to change entity classification	(873)	(2,109)	(8,264)
Tax credits	(1,720)	(1,824)	(2,876)
Other	280	2,549	1,326
Total	$ 129,879	$ 119,502	$ 87,842
Effective tax rate	22.20%	22.30%	17.30%
Effect of change in enacted tax rate	$ 4,100
Foreign losses	3,600
Excess tax benefit	$ 22,400	$ 19,800	$ 35,100

INCOME TAXES (Deferred Income T

INCOME TAXES (Deferred Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Deferred tax assets:
Property and equipment	$ 10,622	$ 13,359
Accrued expenses	99,459	77,757
Accrued sales discounts	10,262	11,148
Stock-based compensation	39,492	36,488
Operating lease liabilities	39,240	40,549
R&D capitalization	121,546	77,601
Deferred consideration	11,278	13,762
Foreign currency exchange	18,290	2,688
Net operating loss carryforward	22,717	12,037
Other	18,806	15,112
Deferred tax assets	391,712	300,501
Less: valuation allowance	(10,183)	(7,622)
Total deferred tax assets	381,529	292,879
Deferred tax liabilities:
Property and equipment	11,941	13,590
Intangible assets	126,443	27,914
Operating lease right-of-use assets	39,132	39,551
R&D credit carryforward	4,061	0
U.S. taxation of foreign subsidiaries	17,158	13,955
Other	5,357	8,711
Total deferred tax liabilities	204,092	103,721
Net deferred tax assets	177,437	189,158
Deferred tax liabilities, noncurrent	92,362	8,744
Business Acquisitions
Deferred tax assets:
Stock-based compensation	$ 3,100	3,900
Business Acquisitions | Minimum
Deferred tax liabilities:
Amortization period of stock-based compensation for tax	10 years
Business Acquisitions | Maximum
Deferred tax liabilities:
Amortization period of stock-based compensation for tax	15 years
Other noncurrent liabilities
Deferred tax liabilities:
Deferred tax liabilities, noncurrent	$ 92,400	$ 8,700

INCOME TAXES (Operating Loss Ca

INCOME TAXES (Operating Loss Carryforwards) (Details) $ in Millions	Dec. 31, 2024 USD ($)
Domestic
Operating Loss Carryforwards [Line Items]
Net operating loss	$ 3.7
Foreign
Operating Loss Carryforwards [Line Items]
Net operating loss	91.3
NOL not subject to expiration	14.4
Operating loss carryforwards, valuation allowance	$ 48.3

INCOME TAXES (Unrecognized Tax

INCOME TAXES (Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Unrecognized tax benefit	$ 11,487	$ 11,471	$ 7,865	$ 8,155
Interest and penalties from unrecognized tax benefits	$ 2,100	$ 1,500

INCOME TAXES (Schedule of Unrec

INCOME TAXES (Schedule of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Unrecognized Tax Benefits [Roll Forward]
Beginning Balance	$ 11,471	$ 7,865	$ 8,155
Increases in tax positions from current year	1,407	3,307	4,739
Increases in tax positions from acquisitions	0	0	393
Increases in tax positions from prior years	1,043	716	2,447
Decreases in tax positions from prior years	(2,251)	(47)	(6,945)
Decreases due to lapse of statute of limitations	(86)	(438)	(1,121)
Decrease resulting from foreign currency translation	(97)
Increase resulting from foreign currency translation		68	197
Ending Balance	11,487	$ 11,471	$ 7,865
Interest and penalties	$ (2,400)

EARNINGS PER SHARE (Details)

EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Numerator for basic and diluted earnings per share:
Net income	$ 454,533	$ 417,083	$ 419,416
Numerator for basic earnings per share	454,533	417,083	419,416
Numerator for diluted earnings per share	$ 454,533	$ 417,083	$ 419,416
Denominator:
Weighted average common shares for basic earnings per share (in shares)	57,288	57,829	57,291
Net effect of dilutive stock options, restricted stock units, restricted stock awards and stock issuable under the ESPP (in shares)	695	1,256	1,878
Weighted average common shares for diluted earnings per share	57,983	59,085	59,169
Net Income per share:
Basic (in dollars per share)	$ 7.93	$ 7.21	$ 7.32
Diluted (in dollars per share)	$ 7.84	$ 7.06	$ 7.09
Anti-dilutive stock excluded from the calculation (in shares)	896	415	264

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Details) - USD ($)	Dec. 31, 2024	Mar. 31, 2023	Mar. 04, 2022
Other Commitments [Line Items]
Deferred consideration	$ 35,000,000
Deferred consideration in 2025	17,000,000
Deferred consideration in 2026	18,000,000
Cloud Services
Other Commitments [Line Items]
Contractual term		5 years
Total commitment amount	62,200,000	$ 75,000,000
Contractual commitment, percent		20%
Humanitarian Commitment
Other Commitments [Line Items]
Commitment	$ 24,600,000
Ukraine | Humanitarian Commitment
Other Commitments [Line Items]
Commitment			$ 100,000,000

SEGMENT INFORMATION (Reconcilia

SEGMENT INFORMATION (Reconciliation of Segment Operating Profit to Consolidated Income Before Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment revenues	$ 4,727,940	$ 4,690,540	$ 4,824,698
Cost of revenues (exclusive of depreciation and amortization)	3,277,497	3,256,514	3,286,683
Selling, general and administrative expenses	816,300	815,065	872,777
Depreciation and amortization expense	89,559	91,800	92,272
Stock-based compensation expense	(167,297)	(147,730)	(99,909)
Amortization of purchased intangibles	(29,475)	(22,717)	(22,223)
Loss on sale of business	0	25,922	0
Income from operations	544,584	501,239	572,966
Interest and other income, net	46,876	51,124	10,025
Foreign exchange loss	(7,048)	(15,778)	(75,733)
Income before provision for income taxes	584,412	536,585	507,258
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment revenues	4,727,940	4,690,540	4,824,698
Cost of revenues (exclusive of depreciation and amortization)	3,206,168	3,215,431	3,228,734
Selling, general and administrative expenses	636,087	649,842	743,510
Depreciation and amortization expense	60,085	69,083	70,049
Segment operating profit	825,600	756,184	782,405
Unallocated Amounts
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Stock-based compensation expense	(167,297)	(147,730)	(99,909)
Amortization of purchased intangibles	(29,475)	(22,717)	(22,223)
Other acquisition-related expenses	(15,472)	(2,768)	(1,593)
Loss on sale of business		(25,922)
Other unallocated costs	(68,772)	(55,808)	(85,714)
Income from operations	544,584	501,239	572,966
North America | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment revenues	2,866,339	2,765,022	2,898,554
Cost of revenues (exclusive of depreciation and amortization)	1,915,851	1,848,758	1,875,861
Selling, general and administrative expenses	369,055	361,589	404,276
Depreciation and amortization expense	40,009	43,645	41,516
Segment operating profit	541,424	511,030	576,901
Europe | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment revenues	1,861,601	1,909,443	1,853,056
Cost of revenues (exclusive of depreciation and amortization)	1,290,317	1,348,190	1,283,398
Selling, general and administrative expenses	267,032	285,722	323,151
Depreciation and amortization expense	20,076	25,307	27,465
Segment operating profit	284,176	250,224	219,042
Russia
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment revenues	$ 0	13,290	64,745
Russia | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment revenues		16,075	73,088
Cost of revenues (exclusive of depreciation and amortization)		18,483	69,475
Selling, general and administrative expenses		2,531	16,083
Depreciation and amortization expense		131	1,068
Segment operating profit		$ (5,070)	$ (13,538)

SEGMENT INFORMATION (Physical L

SEGMENT INFORMATION (Physical Locations and Values of Long-Lived Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Long-Lived Assets by Geographical Areas [Line Items]
Long-Lived Assets	$ 207,667	$ 235,053	$ 273,348
Ukraine
Long-Lived Assets by Geographical Areas [Line Items]
Long-Lived Assets	58,865	62,653	70,183
Belarus
Long-Lived Assets by Geographical Areas [Line Items]
Long-Lived Assets	45,900	49,875	57,311
United States
Long-Lived Assets by Geographical Areas [Line Items]
Long-Lived Assets	39,403	42,510	68,804
Poland
Long-Lived Assets by Geographical Areas [Line Items]
Long-Lived Assets	10,605	15,057	14,685
India
Long-Lived Assets by Geographical Areas [Line Items]
Long-Lived Assets	15,367	12,735	8,506
Hungary
Long-Lived Assets by Geographical Areas [Line Items]
Long-Lived Assets	4,157	6,683	8,552
Other
Long-Lived Assets by Geographical Areas [Line Items]
Long-Lived Assets	$ 33,370	$ 45,540	$ 45,307

SEGMENT INFORMATION (Revenues b

SEGMENT INFORMATION (Revenues by Customer Location) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 4,727,940	$ 4,690,540	$ 4,824,698
United States
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	2,680,063	2,633,730	2,761,050
United Kingdom
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	523,369	585,172	619,305
Switzerland
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	407,849	367,121	323,424
Germany
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	206,129	178,492	161,758
Netherlands
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	188,576	236,292	215,444
Canada
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	88,352	97,983	114,910
Russia
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	0	13,290	64,745
Other locations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 633,602	$ 578,460	$ 564,062

ACCUMULATED OTHER COMPREHENSI_3

ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	$ 3,471,470	$ 3,003,010	$ 2,495,837
Other comprehensive (loss)/income	(77,828)	56,281	(41,114)
Balance, end of period	3,631,151	3,471,470	3,003,010
Accumulated other comprehensive loss
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(39,040)	(95,321)	(54,207)
Other comprehensive (loss)/income	(77,824)	56,281	(41,114)
Balance, end of period	(116,864)	(39,040)	(95,321)
Foreign currency translation
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(43,601)	(101,780)	(52,747)
Foreign currency translation	(71,584)	45,035	(45,295)
Net loss reclassified into Loss on sale of business	0	23,931	0
Income tax benefit/(expense)	11,210	(10,787)	(3,738)
Other comprehensive (loss)/income	(60,374)	58,179	(49,033)
Balance, end of period	(103,975)	(43,601)	(101,780)
Cash flow hedging instruments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	7,819	8,306	(3,417)
Income tax benefit/(expense)	5,732	90	(3,442)
Unrealized (loss)/gain in fair value	(18,570)	25,352	(49,233)
Net (gain)/loss reclassified into Cost of revenues (exclusive of depreciation and amortization)	(6,333)	(25,695)	20,331
Net loss/(gain) reclassified into Foreign exchange loss	87	(234)	44,067
Other comprehensive (loss)/income	(19,084)	(487)	11,723
Balance, end of period	(11,265)	7,819	8,306
Defined benefit plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance, beginning of period	(3,258)	(1,847)	1,957
Income tax benefit/(expense)	(213)	445	1,088
Other comprehensive (loss)/income	1,634	(1,411)	(3,804)
Balance, end of period	(1,624)	(3,258)	(1,847)
Actuarial gains/(losses)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Net (gain)/loss reclassified into Cost of revenues (exclusive of depreciation and amortization)	$ 1,847	$ (1,856)	$ (4,892)

VALUATION AND QUALIFYING ACCO_2

VALUATION AND QUALIFYING ACCOUNTS (Valuation and Qualifying Accounts) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Allowance for doubtful accounts for trade receivables and contract assets
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 11,864	$ 15,310	$ 5,521
Additions	2,084	3,948	14,419
Deductions/ Write offs	(8,336)	(7,394)	(4,630)
Balance at End of Year	5,612	11,864	15,310
Valuation allowance on deferred tax assets
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	7,622	6,728	4,537
Additions	4,190	2,210	2,191
Deductions/ Write offs	(1,629)	(1,316)	0
Balance at End of Year	$ 10,183	$ 7,622	$ 6,728