EPAM Systems (EPAM) 10-Q 7 Nov 24 2024 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2024	Oct. 31, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2024
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, Street Name	41 University Drive
Entity Address, Suite No.	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 Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		56,721,427
Entity Central Index Key	0001352010
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus (Q1,Q2,Q3,FY)	Q3
Amendment Flag	false

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 2,036,394	$ 2,036,235
Trade receivables and contract assets, net of allowance of $5,864 and $11,864, respectively	935,077	897,032
Short-term investments	22,316	60,739
Prepaid and other current assets	113,069	97,355
Total current assets	3,106,856	3,091,361
Property and equipment, net	207,502	235,053
Operating lease right-of-use assets, net	129,929	134,898
Intangible assets, net	74,494	71,118
Goodwill	621,903	562,459
Deferred tax assets	218,320	197,901
Other noncurrent assets	98,193	59,575
Total assets	4,457,197	4,352,365
Current liabilities
Accounts payable	30,774	31,992
Accrued compensation and benefits expenses	422,548	412,747
Accrued expenses and other current liabilities	155,817	124,823
Income taxes payable, current	34,346	38,812
Operating lease liabilities, current	37,561	36,558
Total current liabilities	681,046	644,932
Long-term debt	25,331	26,126
Operating lease liabilities, noncurrent	102,551	109,261
Other noncurrent liabilities	93,640	100,576
Total liabilities	902,568	880,895
Commitments and contingencies (Note 15)
Stockholders’ equity
Common stock, $0.001 par value; 160,000 shares authorized; 56,708 shares issued and outstanding at September 30, 2024, and 57,787 shares issued and outstanding at December 31, 2023	57	58
Additional paid-in capital	1,129,238	1,008,766
Retained earnings	2,465,269	2,501,107
Accumulated other comprehensive loss	(40,517)	(39,040)
Total EPAM Systems, Inc. stockholders’ equity	3,554,047	3,470,891
Noncontrolling interest in consolidated subsidiaries	582	579
Total equity	3,554,629	3,471,470
Total liabilities and equity	$ 4,457,197	$ 4,352,365

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets
Trade receivables and contract assets allowance	$ 5,864	$ 11,864
Stockholders' equity
Common stock, par value (in usd per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	160,000,000	160,000,000
Common stock, shares issued (in shares)	56,708,000	57,787,000
Common stock, shares outstanding (in shares)	56,708,000	57,787,000

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Revenues	$ 1,167,527	$ 1,152,136	$ 3,479,589	$ 3,533,283
Operating expenses:
Cost of revenues (exclusive of depreciation and amortization)	763,992	794,265	2,409,183	2,458,881
Selling, general and administrative expenses	206,820	194,829	599,331	601,093
Depreciation and amortization expense	19,736	23,092	63,003	68,642
Loss on sale of business	0	25,922	0	25,922
Income from operations	176,979	114,028	408,072	378,745
Interest and other income, net	13,347	13,931	40,425	37,162
Foreign exchange (loss)/gain	(710)	3,893	(1,416)	(6,725)
Income before provision for income taxes	189,616	131,852	447,081	409,182
Provision for income taxes	53,270	34,648	95,847	89,653
Net income	$ 136,346	$ 97,204	$ 351,234	$ 319,529
Net income per share:
Basic (in usd per share)	$ 2.40	$ 1.68	$ 6.11	$ 5.52
Diluted (in usd per share)	$ 2.37	$ 1.65	$ 6.04	$ 5.40
Shares used in calculation of net income per share:
Basic (in shares)	56,910	57,853	57,445	57,850
Diluted (in shares)	57,425	58,948	58,166	59,143

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 136,346	$ 97,204	$ 351,234	$ 319,529
Other comprehensive income/(loss):
Change in foreign currency translation adjustments, net of tax	30,774	(5,801)	6,413	14,821
Change in unrealized loss on hedging instruments, net of tax	(1,994)	(13,744)	(8,334)	(11,130)
Defined benefit pension plans - actuarial gain, net of tax	126	0	444	0
Other comprehensive income/(loss)	28,906	(19,545)	(1,477)	3,691
Comprehensive income	$ 165,252	$ 77,659	$ 349,757	$ 323,220

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) - 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 in consolidated subsidiaries
Balance, beginning of period (in shares) at Dec. 31, 2022		57,655
Balance, beginning of period at Dec. 31, 2022	$ 3,003,010	$ 58		$ 847,965	$ 2,248,948	$ (118)	$ (95,321)	$ 1,478
Treasury stock, beginning of period (in shares) at Dec. 31, 2022						14
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock units vested (in shares)			224
Equity withheld for employee taxes (in shares)		(72)
Equity withheld for employee taxes	(20,501)			(20,501)
Stock-based compensation expense	34,265			34,265
Exercise of stock options (in shares)		71
Exercise of stock options	2,525			2,525
Repurchase of common stock, including excise tax (in shares)		(30)
Repurchase of common stock, including excise tax	(8,510)				(8,510)
Other comprehensive (loss) income	17,361						17,361
Net income	102,292				102,292
Balance, end of period (in shares) at Mar. 31, 2023		57,848
Balance, end of period at Mar. 31, 2023	3,130,442	$ 58		864,254	2,342,730	$ (118)	(77,960)	1,478
Treasury stock, end of period (in shares) at Mar. 31, 2023						14
Balance, beginning of period (in shares) at Dec. 31, 2022		57,655
Balance, beginning of period at Dec. 31, 2022	3,003,010	$ 58		847,965	2,248,948	$ (118)	(95,321)	1,478
Treasury stock, beginning of period (in shares) at Dec. 31, 2022						14
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	319,529
Balance, end of period (in shares) at Sep. 30, 2023		57,693
Balance, end of period at Sep. 30, 2023	3,300,018	$ 58		951,086	2,440,043	$ (118)	(91,630)	579
Treasury stock, end of period (in shares) at Sep. 30, 2023						14
Balance, beginning of period (in shares) at Mar. 31, 2023		57,848
Balance, beginning of period at Mar. 31, 2023	3,130,442	$ 58		864,254	2,342,730	$ (118)	(77,960)	1,478
Treasury stock, beginning of period (in shares) at Mar. 31, 2023						14
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock units vested (in shares)			76
Equity withheld for employee taxes (in shares)		(21)
Equity withheld for employee taxes	(6,142)			(6,142)
Stock-based compensation expense	32,449			32,449
Exercise of stock options (in shares)		170
Exercise of stock options	4,601			4,601
Issuance of common stock from employee stock purchase plan (in shares)		77
Issuance of common stock from employee stock purchase plan	18,466			18,466
Repurchase of common stock, including excise tax (in shares)		(195)
Repurchase of common stock, including excise tax	(41,437)				(41,437)
Purchase of subsidiary shares from noncontrolling interest	(1,453)			(48)				(1,405)
Contributions to consolidated subsidiary from noncontrolling interest	506							506
Other comprehensive (loss) income	5,875						5,875
Net income	120,033				120,033
Balance, end of period (in shares) at Jun. 30, 2023		57,955
Balance, end of period at Jun. 30, 2023	3,263,340	$ 58		913,580	2,421,326	$ (118)	(72,085)	579
Treasury stock, end of period (in shares) at Jun. 30, 2023						14
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock units vested (in shares)			7
Equity withheld for employee taxes (in shares)		(2)
Equity withheld for employee taxes	(426)			(426)
Stock-based compensation expense	34,949			34,949
Exercise of stock options (in shares)		51
Exercise of stock options	2,983			2,983
Repurchase of common stock, including excise tax (in shares)		(318)
Repurchase of common stock, including excise tax	(78,487)				(78,487)
Other comprehensive (loss) income	(19,545)						(19,545)
Net income	97,204				97,204
Balance, end of period (in shares) at Sep. 30, 2023		57,693
Balance, end of period at Sep. 30, 2023	$ 3,300,018	$ 58		951,086	2,440,043	$ (118)	(91,630)	579
Treasury stock, end of period (in shares) at Sep. 30, 2023						14
Balance, beginning of period (in shares) at Dec. 31, 2023	57,787	57,787
Balance, beginning of period at Dec. 31, 2023	$ 3,471,470	$ 58		1,008,766	2,501,107	$ 0	(39,040)	579
Treasury stock, beginning of period (in shares) at Dec. 31, 2023						0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock units vested (in shares)			261
Equity withheld for employee taxes (in shares)		(88)
Equity withheld for employee taxes	(26,012)			(26,012)
Stock-based compensation expense	41,642			41,642
Exercise of stock options (in shares)		369
Exercise of stock options	15,251			15,251
Repurchase of common stock, including excise tax (in shares)		(396)
Repurchase of common stock, including excise tax	(120,593)				(120,593)
Other comprehensive (loss) income	(22,316)						(22,312)	(4)
Net income	116,243				116,243
Balance, end of period (in shares) at Mar. 31, 2024		57,933
Balance, end of period at Mar. 31, 2024	$ 3,475,685	$ 58		1,039,647	2,496,757	$ 0	(61,352)	575
Treasury stock, end of period (in shares) at Mar. 31, 2024						0
Balance, beginning of period (in shares) at Dec. 31, 2023	57,787	57,787
Balance, beginning of period at Dec. 31, 2023	$ 3,471,470	$ 58		1,008,766	2,501,107	$ 0	(39,040)	579
Treasury stock, beginning of period (in shares) at Dec. 31, 2023						0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	409
Net income	$ 351,234
Balance, end of period (in shares) at Sep. 30, 2024	56,708	56,708
Balance, end of period at Sep. 30, 2024	$ 3,554,629	$ 57		1,129,238	2,465,269	$ 0	(40,517)	582
Treasury stock, end of period (in shares) at Sep. 30, 2024						0
Balance, beginning of period (in shares) at Mar. 31, 2024		57,933
Balance, beginning of period at Mar. 31, 2024	3,475,685	$ 58		1,039,647	2,496,757	$ 0	(61,352)	575
Treasury stock, beginning of period (in shares) at Mar. 31, 2024						0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock units vested (in shares)			69
Equity withheld for employee taxes (in shares)		(18)
Equity withheld for employee taxes	(4,577)			(4,577)
Stock-based compensation expense	35,285			35,285
Exercise of stock options (in shares)		23
Exercise of stock options	1,339			1,339
Issuance of common stock from employee stock purchase plan (in shares)		85
Issuance of common stock from employee stock purchase plan	15,717			15,717
Repurchase of common stock, including excise tax (in shares)		(1,160)
Repurchase of common stock, including excise tax	(216,071)	$ (1)			(216,070)
Contributions to consolidated subsidiary from noncontrolling interest	7							7
Other comprehensive (loss) income	(8,071)						(8,071)
Net income	98,645				98,645
Balance, end of period (in shares) at Jun. 30, 2024		56,932
Balance, end of period at Jun. 30, 2024	3,397,959	$ 57		1,087,411	2,379,332	$ 0	(69,423)	582
Treasury stock, end of period (in shares) at Jun. 30, 2024						0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted stock units vested (in shares)			7
Equity withheld for employee taxes (in shares)		(3)
Equity withheld for employee taxes	(611)			(611)
Stock-based compensation expense	41,136			41,136
Exercise of stock options (in shares)		17
Exercise of stock options	1,302			1,302
Repurchase of common stock, including excise tax (in shares)		(245)
Repurchase of common stock, including excise tax	(50,409)				(50,409)
Other comprehensive (loss) income	28,906						28,906
Net income	$ 136,346				136,346
Balance, end of period (in shares) at Sep. 30, 2024	56,708	56,708
Balance, end of period at Sep. 30, 2024	$ 3,554,629	$ 57		$ 1,129,238	$ 2,465,269	$ 0	$ (40,517)	$ 582
Treasury stock, end of period (in shares) at Sep. 30, 2024						0

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities:
Net income	$ 351,234	$ 319,529
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	63,003	68,642
Operating lease right-of-use assets amortization expense	28,051	30,842
Bad debt (recovery)/expense	(3,071)	2,739
Deferred taxes	(24,888)	(11,760)
Stock-based compensation expense	122,599	109,536
Unrealized gain on derivative instruments	0	(7,904)
Impairment charges	395	688
Loss on sale of business	0	25,922
Other	6,715	1,106
Changes in assets and liabilities:
Trade receivables and contract assets	(22,791)	6,145
Prepaid and other assets	(52,167)	13,208
Accounts payable	(4,611)	837
Accrued expenses and other liabilities	17,262	(95,570)
Operating lease liabilities	(29,604)	(34,310)
Income taxes payable	(23,218)	(38,385)
Net cash provided by operating activities	428,909	391,265
Cash flows from investing activities:
Purchases of property and equipment	(16,419)	(18,420)
Purchases of short-term investments	(1,872)	(10,865)
Proceeds from short-term investments	41,509	10,865
Acquisition of business, net of cash acquired (Note 3)	(57,065)	(13,997)
Cash sold as part of sale of business, net of proceeds	0	(2,169)
Purchases of non-marketable securities	(6,927)	(3,281)
Other investing activities, net	1,674	(8,204)
Net cash used in investing activities	(39,100)	(46,071)
Cash flows from financing activities:
Proceeds from issuance of stock under the employee incentive programs	33,781	28,612
Payments of withholding taxes related to net share settlements of restricted stock units	(32,465)	(28,202)
Proceeds from debt	0	764
Repayment of debt	(1,497)	(2,607)
Repurchase of common stock	(385,025)	(128,433)
Payment of contingent consideration for previously acquired business	(4,750)	(8,684)
Purchase of subsidiary shares from noncontrolling interest	0	(1,972)
Other financing activities, net	(1,711)	(2,895)
Net cash used in financing activities	(391,667)	(143,417)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(543)	(5,632)
Net (decrease)/increase in cash, cash equivalents and restricted cash	(2,401)	196,145
Cash, cash equivalents and restricted cash, beginning of period	2,043,108	1,683,636
Cash, cash equivalents and restricted cash, end of period	$ 2,040,707	$ 1,879,781

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOW (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Statement of Cash Flows [Abstract]
Cash and cash equivalents	$ 2,036,394	$ 2,036,235
Restricted cash in Prepaid and other current assets	866	5,294
Restricted cash in Other noncurrent assets	3,447	1,579
Total restricted cash	4,313	6,873
Total cash, cash equivalents and restricted cash	$ 2,040,707	$ 2,043,108

ORGANIZATION AND SUMMARY OF SIG

ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	9 Months Ended
	Sep. 30, 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 delivery of 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. Basis of Presentation — The accompanying unaudited condensed consolidated financial statements of EPAM have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP” or “U.S. GAAP”) and Article 10 of Regulation S-X under the Securities Exchange Act of 1934, as amended. The unaudited condensed consolidated financial statements include the financial statements of EPAM Systems, Inc. and its subsidiaries with all intercompany balances and transactions eliminated. These unaudited condensed consolidated financial statements and accompanying notes should be read in conjunction with the Company’s audited consolidated financial statements and the notes thereto for the year ended December 31, 2023 included in its Annual Report on Form 10-K. The preparation of these condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in these condensed consolidated financial statements and accompanying notes. Actual results could differ from those estimates, and such differences may be material to the unaudited condensed consolidated financial statements. Operating results for the interim periods are not necessarily indicative of results that may be expected to occur for the entire year. In management’s opinion, the accompanying unaudited condensed consolidated financial statements include all normal and recurring adjustments necessary for a fair presentation of the Company’s financial position as of September 30, 2024 and the results of its operations and its cash flows for the periods presented. 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 September 30, 2024, the Company had $63.6 million of cash and cash equivalents in banks in Ukraine and $29.3 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 8 “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 There were no recently adopted accounting standards which had a material impact on the Company’s consolidated financial statements. 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. During the three and nine months ended September 30, 2024, there have been no material updates regarding pending accounting standards as reported in our Annual Report on Form 10-K for the year ended December 31, 2023.

IMPACT OF THE INVASION OF UKRAI

IMPACT OF THE INVASION OF UKRAINE	9 Months Ended
	Sep. 30, 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 interim financial statements, there has been no resolution to this attack. As of September 30, 2024, the Company had $58.8 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 $52.2 million, laptops with a net book value of $3.0 million, most of which are in the possession of employees, various office furniture, equipment and supplies with a net book value of $3.1 million, and leasehold improvements located throughout Ukraine with a net book value of $0.5 million. Additionally, as of September 30, 2024, the Company had Operating lease right-of-use assets located throughout Ukraine with a net book value of $4.2 million. Through the issuance date of these interim 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 $100.0 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 three and nine months ended September 30, 2024, the Company expensed $3.6 million and $9.5 million, respectively, related to this commitment. Of the expensed amounts for the three and nine months ended September 30, 2024, $0.6 million and $1.8 million, respectively, is classified in Cost of revenues (exclusive of depreciation and amortization), and $3.0 million and $7.7 million, respectively, is classified in Selling, general and administrative expenses on the condensed consolidated financial statements. During the three and nine months ended September 30, 2023, the Company expensed $3.6 million and $13.6 million, respectively, related to this commitment. Of the expensed amounts for the three and nine months ended September 30, 2023, $3.0 million and $8.3 million, respectively, is classified in Cost of revenues (exclusive of depreciation and amortization), and $0.6 million and $5.3 million, respectively, is classified in Selling, general and administrative expenses on the condensed consolidated financial statements. As of September 30, 2024, the Company has $28.3 million remaining to be expensed under 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. During the three and nine months ended September 30, 2024, the Company incurred no expenses related to the standby resources and incurred expenses of $0.0 million and $0.9 million, respectively, related to its geographic repositioning efforts, classified as Selling, general and administrative expenses. During the three and nine months ended September 30, 2023, the Company incurred expenses of $0.0 million and $9.4 million, respectively, related to the standby resources, classified as Cost of revenues (exclusive of depreciation and amortization). Also, during the three and nine months ended September 30, 2023, the Company incurred expenses of $0.4 million and $0.9 million, respectively, related to its geographic repositioning efforts, classified as Selling, general and administrative expenses.

ACQUISITIONS

ACQUISITIONS	9 Months Ended
	Sep. 30, 2024
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]
ACQUISITIONS	ACQUISITIONS 2024 Acquisitions - During the nine months ended September 30, 2024, the Company completed three 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. Pro forma results of operations have not been presented because the effect of these acquisitions on the Company’s condensed consolidated financial statements was not material. 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. Pro forma results of operations have not been presented because the effect of these acquisitions on the Company’s condensed consolidated financial statements was not material.

GOODWILL

GOODWILL	9 Months Ended
	Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL	GOODWILL Goodwill by reportable segment was as follows: North America Europe Total Balance as of January 1, 2024 $ 241,860 $ 320,599 $ 562,459 2024 Acquisitions 40,517 12,911 53,428 2023 Acquisitions purchase accounting adjustments 861 — 861 Effect of net foreign currency exchange rate changes 65 5,090 5,155 Balance as of September 30, 2024 $ 283,303 $ 338,600 $ 621,903 There were no accumulated impairment losses in the North America or Europe reportable segments as of September 30, 2024 or December 31, 2023.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	9 Months Ended
	Sep. 30, 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 condensed consolidated balance sheets. The following tables present the fair values of the Company’s financial assets and liabilities measured at fair value on a recurring basis as of September 30, 2024 and December 31, 2023: As of September 30, 2024 Balance Level 1 Level 2 Level 3 Foreign exchange derivative assets $ 3,275 $ — $ 3,275 $ — Total assets measured at fair value on a recurring basis $ 3,275 $ — $ 3,275 $ — Foreign exchange derivative liabilities $ 3,945 $ — $ 3,945 $ — Contingent consideration liabilities 31,998 — — 31,998 Total liabilities measured at fair value on a recurring basis $ 35,943 $ — $ 3,945 $ 31,998 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 liabilities 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” in the condensed consolidated interim financial statements for additional information regarding derivative financial instruments. The fair value of the contingent consideration 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 rates used to determine the fair value of contingent consideration for the 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%. 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 condensed consolidated statement of income. A reconciliation of the beginning and ending balances of Level 3 contingent consideration liabilities using significant unobservable inputs for the nine months ended September 30, 2024 is as follows: Amount Contingent consideration liabilities as of January 1, 2024 $ 23,150 Acquisition date fair value of contingent consideration — 2024 Acquisitions 9,756 Changes in fair value of contingent consideration included in Interest and other income, net 4,031 Payment of contingent consideration for previously acquired businesses (5,000) Effect of foreign currency exchange rate changes, net 61 Contingent consideration liabilities as of September 30, 2024 $ 31,998 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 September 30, 2024 Financial Assets: Cash equivalents: Money market funds $ 149,142 $ 149,142 $ 149,142 $ — $ — Time deposits 28,921 28,921 — 28,921 — Total cash equivalents $ 178,063 $ 178,063 $ 149,142 $ 28,921 $ — Time deposits included in Short-term investments $ 20,920 $ 20,920 $ — $ 20,920 $ — Financial Liabilities: Borrowings under the 2021 Credit Agreement $ 25,000 $ 25,000 $ — $ 25,000 $ — Deferred consideration for asset acquisition $ 47,083 $ 47,083 $ — $ 47,083 $ — 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 the 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 $39.1 million and $31.7 million as of September 30, 2024 and December 31, 2023, respectively, and is classified as Other noncurrent assets in the Company’s condensed consolidated balance sheets.

DERIVATIVE FINANCIAL INSTRUMENT

DERIVATIVE FINANCIAL INSTRUMENTS	9 Months Ended
	Sep. 30, 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. As of September 30, 2024, all of the Company’s foreign exchange forward contracts were designated as hedges and 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 derivative instruments on the Company’s condensed consolidated balance sheets as of September 30, 2024 and December 31, 2023 were as follows: As of September 30, 2024 As of December 31, 2023 Balance Sheet Classification Asset Derivatives Liability Derivatives Asset Derivatives Liability Derivatives Foreign exchange forward contracts designated as hedging instruments Prepaid expenses and other current assets $ 3,275 $ 10,416 Accrued expenses and other current liabilities $ 3,945 $ 248

LEASES

LEASES	9 Months Ended
	Sep. 30, 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 7.3 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 three and nine months ended September 30, 2024 and 2023. During the three and nine months ended September 30, 2024 and 2023, the components of lease cost were as follows: Three Months Ended Nine Months Ended Income Statement Classification 2024 2023 2024 2023 Operating lease cost Selling, general and administrative expenses $ 10,893 $ 11,592 $ 32,579 $ 34,725 Variable lease cost Selling, general and administrative expenses 2,913 2,905 7,981 9,941 Short-term lease cost Selling, general and administrative expenses 881 998 2,787 4,609 Total lease cost $ 14,687 $ 15,495 $ 43,347 $ 49,275 Supplemental cash flow information related to leases for the three and nine months ended September 30, 2024 and 2023 was as follows: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used for operating leases $ 11,683 $ 12,383 $ 34,308 $ 37,628 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 837 $ 3,815 $ 11,823 $ 10,843 Non-cash net increase due to lease modifications: Operating lease right-of-use assets $ 5,103 $ 1,312 $ 11,342 $ 7,203 Operating lease liabilities $ 5,245 $ 1,276 $ 11,376 $ 7,416 Weighted average remaining lease term and discount rate as of September 30, 2024 and 2023 were as follows: As of September 30, 2024 As of September 30, 2023 Weighted average remaining lease term, in years: Operating leases 4.6 5.0 Weighted average discount rate: Operating leases 4.3 % 3.9 % As of September 30, 2024, operating lease liabilities will mature as follows: Year ending December 31, Lease Payments 2024 (excluding nine months ended September 30, 2024) $ 11,098 2025 40,667 2026 34,216 2027 24,747 2028 20,533 Thereafter 21,728 Total lease payments 152,989 Less: imputed interest (12,877) Total $ 140,112 The Company had committed to payments of $3.6 million related to operating lease agreements that had not yet commenced as of September 30, 2024. These operating leases will commence on various dates during 2024 and 2025 with lease terms ranging from 3.0 to 5.1 years. The Company did not have any material finance lease agreements that had not yet commenced.

DEBT

DEBT	9 Months Ended
	Sep. 30, 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 September 30, 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 September 30, 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 As of Outstanding debt $ 25,000 $ 25,000 Interest rate 5.9 % 6.3 % Available borrowing capacity $ 675,000 $ 675,000 Maximum borrowing capacity $ 700,000 $ 700,000

COST OPTIMIZATION PROGRAMS

COST OPTIMIZATION PROGRAMS	9 Months Ended
	Sep. 30, 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 $14.0 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 has 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 condensed 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 16 “Segment Information”). Activity in the Company’s restructuring reserves was as follows: Balance at December 31, 2023 Charges Payments Made Balance at September 30, 2024 2024 Cost Optimization Program Employee separation costs $ — $ 17,132 $ (13,506) $ 3,626 Contract termination charges — 286 — 286 2023 Cost Optimization Program Employee separation costs 6,966 9,015 (15,981) — Total $ 6,966 $ 26,433 $ (29,487) $ 3,912

REVENUES

REVENUES	9 Months Ended
	Sep. 30, 2024
Revenue from Contract with Customer [Abstract]
REVENUES	REVENUES Disaggregation of Revenues The following tables present the disaggregation of the Company’s revenues by client location, including a reconciliation of the disaggregated revenues with the reportable segments (Note 16 “Segment Information”) for the periods indicated: Three Months Ended September 30, 2024 Reportable Segments North America Europe Consolidated Revenues Client Locations Americas $ 669,582 $ 27,585 $ 697,167 EMEA (1) 34,679 410,188 444,867 APAC 352 25,141 25,493 CEE (1) — — — Revenues $ 704,613 $ 462,914 $ 1,167,527 Nine Months Ended September 30, 2024 Reportable Segments North America Europe Consolidated Revenues Client Locations Americas $ 2,002,942 $ 78,344 $ 2,081,286 EMEA (1) 103,220 1,222,215 1,325,435 APAC 1,809 71,059 72,868 CEE (1) — — — Revenues $ 2,107,971 $ 1,371,618 $ 3,479,589 (1) As a result of the Company’s exit from Russia and 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. Starting in 2024, revenues from the CEE region are included in the EMEA region. Three Months Ended September 30, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Client Locations Americas $ 654,717 $ 22,693 $ — $ 677,410 EMEA 29,251 416,986 — 446,237 APAC 786 24,265 — 25,051 CEE 24 1,869 1,545 3,438 Revenues $ 684,778 $ 465,813 $ 1,545 $ 1,152,136 Nine Months Ended September 30, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Client Locations Americas $ 1,991,871 $ 73,797 $ 631 $ 2,066,299 EMEA 80,252 1,289,007 — 1,369,259 APAC 2,161 73,919 — 76,080 CEE 522 5,679 15,444 21,645 Revenues $ 2,074,806 $ 1,442,402 $ 16,075 $ 3,533,283 The following tables present the disaggregation of the Company’s revenues by industry vertical, including a reconciliation of the disaggregated revenues with the reportable segments (Note 16 “Segment Information”) for the periods indicated: Three Months Ended September 30, 2024 Reportable Segments North America Europe Consolidated Revenues Industry Verticals Consumer Goods, Retail & Travel (1) $ 107,866 $ 143,259 $ 251,125 Financial Services 129,339 125,296 254,635 Software & Hi-Tech 131,145 46,928 178,073 Business Information & Media 115,121 52,273 167,394 Life Sciences & Healthcare 120,659 21,675 142,334 Emerging Verticals 100,483 73,483 173,966 Revenues $ 704,613 $ 462,914 $ 1,167,527 Nine Months Ended September 30, 2024 Reportable Segments North America Europe Consolidated Revenues Industry Verticals Consumer Goods, Retail & Travel (1) $ 339,556 $ 423,026 $ 762,582 Financial Services 377,000 364,740 741,740 Software & Hi-Tech 392,600 127,727 520,327 Business Information & Media 332,602 170,872 503,474 Life Sciences & Healthcare 362,983 59,644 422,627 Emerging Verticals 303,230 225,609 528,839 Revenues $ 2,107,971 $ 1,371,618 $ 3,479,589 Three Months Ended September 30, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Industry Verticals Consumer Goods, Retail & Travel (1) $ 115,778 $ 146,837 $ 342 $ 262,957 Financial Services 131,499 114,122 814 246,435 Software & Hi-Tech 136,520 37,545 281 174,346 Business Information & Media 104,863 78,983 15 183,861 Life Sciences & Healthcare 109,137 15,143 (36) 124,244 Emerging Verticals 86,981 73,183 129 160,293 Revenues $ 684,778 $ 465,813 $ 1,545 $ 1,152,136 Nine Months Ended September 30, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Industry Verticals Consumer Goods, Retail & Travel (1) $ 359,475 $ 451,531 $ 3,770 $ 814,776 Financial Services 410,527 358,091 7,450 776,068 Software & Hi-Tech 422,073 115,137 1,545 538,755 Business Information & Media 327,378 248,351 196 575,925 Life Sciences & Healthcare 305,700 44,123 120 349,943 Emerging Verticals 249,653 225,169 2,994 477,816 Revenues $ 2,074,806 $ 1,442,402 $ 16,075 $ 3,533,283 (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 16 “Segment Information”) for the periods indicated: Three Months Ended September 30, 2024 Reportable Segments North America Europe Consolidated Revenues Contract Types Time-and-material $ 596,111 $ 372,056 $ 968,167 Fixed-price 102,239 89,276 191,515 Licensing and other revenues 6,263 1,582 7,845 Revenues $ 704,613 $ 462,914 $ 1,167,527 Nine Months Ended September 30, 2024 Reportable Segments North America Europe Consolidated Revenues Contract Types Time-and-material $ 1,793,852 $ 1,099,462 $ 2,893,314 Fixed-price 296,602 266,888 563,490 Licensing and other revenues 17,517 5,268 22,785 Revenues $ 2,107,971 $ 1,371,618 $ 3,479,589 Three Months Ended September 30, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Contract Types Time-and-material $ 602,765 $ 391,479 $ 1,355 $ 995,599 Fixed-price 73,640 73,226 190 147,056 Licensing and other revenues 8,373 1,108 — 9,481 Revenues $ 684,778 $ 465,813 $ 1,545 $ 1,152,136 Nine Months Ended September 30, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Contract Types Time-and-material $ 1,854,159 $ 1,233,271 $ 11,168 $ 3,098,598 Fixed-price 202,144 205,897 4,873 412,914 Licensing and other revenues 18,503 3,234 34 21,771 Revenues $ 2,074,806 $ 1,442,402 $ 16,075 $ 3,533,283 Timing of Revenue Recognition The following tables present the timing of revenue recognition reconciled with the Company’s reportable segments (Note 16 “Segment Information”) for the periods indicated: Three Months Ended September 30, 2024 Reportable Segments North America Europe Consolidated Revenues Timing of Revenue Recognition Transferred over time $ 701,014 $ 461,923 $ 1,162,937 Transferred at a point of time 3,599 991 4,590 Revenues $ 704,613 $ 462,914 $ 1,167,527 Nine Months Ended September 30, 2024 Reportable Segments North America Europe Consolidated Revenues Timing of Revenue Recognition Transferred over time $ 2,097,251 $ 1,368,155 $ 3,465,406 Transferred at a point of time 10,720 3,463 14,183 Revenues $ 2,107,971 $ 1,371,618 $ 3,479,589 Three Months Ended September 30, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Timing of Revenue Recognition Transferred over time $ 682,410 $ 465,286 $ 1,545 $ 1,149,241 Transferred at a point of time 2,368 527 — 2,895 Revenues $ 684,778 $ 465,813 $ 1,545 $ 1,152,136 Nine Months Ended September 30, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Timing of Revenue Recognition Transferred over time $ 2,066,081 $ 1,440,682 $ 16,042 $ 3,522,805 Transferred at a point of time 8,725 1,720 33 10,478 Revenues $ 2,074,806 $ 1,442,402 $ 16,075 $ 3,533,283 During the three and nine months ended September 30, 2024, the Company recognized $1.6 million and $15.0 million, respectively, of revenues from performance obligations satisfied in previous periods compared to $9.2 million and $7.1 million during the three and nine months ended September 30, 2023, respectively. 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 September 30, 2024. The Company applies a practical expedient and does not disclose the value of unsatisfied performance obligations for contracts (i) that have an original expected duration of one year or less and (ii) 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 $ 23,832 $ 3,269 $ — $ — $ 27,101 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 condensed consolidated balance sheets: As of As of Contract assets included in Trade receivables and contract assets, net $ 56,748 $ 24,309 Contract liabilities included in Accrued expenses and other current liabilities $ 32,458 $ 27,988 Contract liabilities included in Other noncurrent liabilities $ 290 $ 951 Contract assets comprise amounts where the Company’s right to bill is contingent on something other than the passage of time such as achievement of contractual milestones. Contract assets have increased from December 31, 2023 primarily due to 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. During the three and nine months ended September 30, 2024, the Company recognized $2.9 million and $20.3 million, respectively, of revenues that were included in Accrued expenses and other current liabilities at December 31, 2023. During the three and nine months ended September 30, 2023, the Company recognized $3.1 million and $27.4 million, respectively, of revenues that were included in Accrued expenses and other current liabilities at December 31, 2022.

GOVERNMENT ASSISTANCE PROGRAMS

GOVERNMENT ASSISTANCE PROGRAMS AND INCENTIVES	9 Months Ended
	Sep. 30, 2024
Government Assistance [Abstract]
GOVERNMENT ASSISTANCE PROGRAMS AND INCENTIVES	GOVERNMENT ASSISTANCE PROGRAMS AND INCENTIVES The Company benefits from various government incentives in 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. Tax Incentive for Research and Development (“R&D”) in Poland During the third quarter of 2024, the Company determined it was eligible for 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 quarter ended September 30, 2024, the Company determined it was probable it would receive government incentives of $22.9 million related to 2023 R&D activities and $29.1 million related to R&D activities completed during the first nine months of 2024 which were recorded as a reduction to Cost of revenues in the condensed consolidated statements of income during the three and nine months ended September 30, 2024. As of September 30, 2024, $20.9 million of benefits were included in Prepaid and other current assets and $31.0 million of benefits were included in Other noncurrent assets on the condensed consolidated balance sheet related to the Poland R&D incentive.

STOCKHOLDERS_ EQUITY

STOCKHOLDERS’ EQUITY	9 Months Ended
	Sep. 30, 2024
Share-Based Payment Arrangement [Abstract]
STOCKHOLDERS’ EQUITY	STOCKHOLDERS’ EQUITY Stock-Based Compensation The following table summarizes the components of stock-based compensation expense recognized in the Company’s condensed consolidated statements of income for the periods indicated: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Cost of revenues (exclusive of depreciation and amortization) $ 19,576 $ 18,142 $ 58,870 $ 49,569 Selling, general and administrative expenses 22,548 19,705 63,729 59,967 Total $ 42,124 $ 37,847 $ 122,599 $ 109,536 Stock Options Stock option activity under the Company’s plans is set forth below: Number of Weighted Average Aggregate Weighted Average Options outstanding at January 1, 2024 1,629 $ 125.88 Options granted 81 $ 296.87 Options exercised (409) $ 43.83 Options forfeited (9) $ 276.69 Options expired (4) $ 373.38 Options outstanding at September 30, 2024 1,288 $ 160.72 $ 94,480 3.9 Options vested and exercisable as of September 30, 2024 1,046 $ 128.05 $ 94,480 2.8 Options expected to vest as of September 30, 2024 231 $ 302.02 $ — 8.4 As of September 30, 2024, $21.6 million of total remaining unrecognized stock-based compensation cost related to unvested stock options, net of estimated forfeitures, is expected to be recognized over the weighted-average remaining requisite service period of 2.1 years. Restricted Stock and Restricted Stock Units Service-Based Awards The table below summarizes activity related to the Company’s equity-classified and liability-classified service-based awards for the nine months ended September 30, 2024: 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 Unvested service-based awards outstanding at January 1, 2024 1,074 $ 292.45 98 $ 287.36 Awards granted 535 $ 289.73 34 $ 298.35 Awards modified 1 $ 366.27 (1) $ 114.30 Awards vested (335) $ 287.43 (39) $ 272.94 Awards forfeited/cancelled (77) $ 300.63 (2) $ 295.91 Unvested service-based awards outstanding at September 30, 2024 1,198 $ 292.15 90 $ 298.91 As of September 30, 2024, $248.9 million of total remaining unrecognized stock-based compensation cost related to service-based equity-classified restricted stock units (“RSUs”), net of estimated forfeitures, is expected to be recognized over the weighted-average remaining requisite service period of 2.6 years. As of September 30, 2024, $14.8 million of total remaining unrecognized stock-based compensation cost related to service-based liability-classified cash-settled RSUs, net of estimated forfeitures, is expected to be recognized over the weighted-average remaining requisite service period of 2.4 years. The liability associated with the service-based liability-classified RSUs as of September 30, 2024 and December 31, 2023, was $1.4 million and $8.7 million, respectively, and was classified as Accrued compensation and benefits expenses in the condensed consolidated balance sheets. Performance-Based Awards The table below summarizes activity related to the Company’s equity-classified performance-based restricted stock unit awards (“PSUs”) for the nine months ended September 30, 2024: Equity-Classified Equity-Settled Restricted Stock Units Number of Shares Weighted Average Grant Date Unvested performance-based awards outstanding at January 1, 2024 13 $ 441.87 Awards granted 38 $ 327.31 Awards vested (3) $ 560.97 Awards forfeited/cancelled (1) $ 594.50 Unvested performance-based awards outstanding at September 30, 2024 47 $ 333.56 As of September 30, 2024, $8.7 million of total remaining unrecognized stock-based compensation cost related to PSUs is expected to be recognized over the weighted-average remaining requisite service period of 1.9 years. During the three months ended March 31, 2024, the Company granted to its named executive officers and certain other members of senior management PSUs 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. The portion of the awards associated with financial performance in future years where the financial performance targets have not yet been determined are not considered granted for accounting purposes. There were 32 thousand such awards as of September 30, 2024. 2021 Employee Stock Purchase Plan The 2021 Employee Stock Purchase Plan ("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 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. During the nine months ended September 30, 2024, the ESPP participants purchased 85 thousand shares of common stock under the ESPP. During the nine months ended September 30, 2023, the ESPP participants purchased 77 thousand shares of common stock under the ESPP. The Company recognizes compensation expense related to share issuances pursuant to the ESPP on a straight-line basis over the six-month offering period. For the three and nine months ended September 30, 2024, the Company recognized $2.3 million and $7.5 million, respectively, of stock-based compensation expense related to the ESPP. For the three and nine months ended September 30, 2023, the Company recognized $3.1 million and $9.7 million, respectively, of stock-based compensation expense related to the ESPP. As of September 30, 2024, total unrecognized stock-based compensation cost related to the ESPP was $0.8 million, which is expected to be recognized over a period of 0.1 years. Commitments for Future Equity Awards In connection with the Company’s acquisitions of businesses as discussed in Note 3 “Acquisitions,” EPAM enters into agreements that contractually commit it to granting equity awards at future dates. The agreements are unique to each acquisition and terms vary, including specifying either the number of future awards to be issued or a monetary value that will be settled with equity awards valued at future stock prices. As of September 30, 2024, the Company has commitments to grant up to $15.6 million of equity awards with the number of awards to be determined based on future stock prices. Additionally, these awards contain performance criteria that will determine the number of future awards to be issued and there is a service-based vesting requirement after the grant date associated with these awards. As these awards are considered granted for accounting purposes, in determining the expense, the Company adjusts the expected settlement based on the probability of achievement of the performance criteria. Related to these awards, the amount of stock-based compensation expense recorded in the condensed consolidated statements of income for the three months ended September 30, 2024 was not material. 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 the 2023 Repurchase Program and exhausted the $500.0 million authorized under that program as of June 30, 2024.

INCOME TAXES

INCOME TAXES	9 Months Ended
	Sep. 30, 2024
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES In determining its interim provision for income taxes, the Company uses an estimated annual effective tax rate, which is based on expected annual profit before tax, statutory tax rates and tax planning opportunities available in the various jurisdictions in which the Company operates. Certain significant or unusual items are separately recognized in the quarter in which they occur and can be a source of variability in the effective tax rates from quarter to quarter. The Company’s worldwide effective tax rate for the three months ended September 30, 2024 and 2023 was 28.1% and 26.3%, respectively, and 21.4% and 21.9% during the nine months ended September 30, 2024 and 2023, respectively. The Company recorded a tax shortfall upon vesting or exercise of stock awards of $0.3 million during the three months ended September 30, 2024 and excess tax benefits upon vesting or exercise of stock awards of $20.5 million during the nine months ended September 30, 2024, compared to excess tax benefits of $1.7 million and $15.1 million during the three and nine months ended September 30, 2023, respectively. The effective tax rate during the three and nine months ended September 30, 2024 was negatively impacted by the accounting treatment of the receipt of government incentives related to conducting R&D activities in Poland, which resulted in a 2.3% and 1.0% increase in the effective tax rate, respectively, and the non-deductibility of certain acquisition costs for tax purposes which resulted in a 1.4% and 0.6% increase in the effective tax rate, respectively. During the three and nine months ended September 30, 2023, the Company’s effective tax rate increased due to a $3.6 million charge in the third quarter associated with the completion of EPAM’s exit from Russia.

EARNINGS PER SHARE

EARNINGS PER SHARE	9 Months Ended
	Sep. 30, 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: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Numerator for basic and diluted earnings per share: Net income $ 136,346 $ 97,204 $ 351,234 $ 319,529 Numerator for basic and diluted earnings per share $ 136,346 $ 97,204 $ 351,234 $ 319,529 Denominator: Weighted average common shares for basic earnings per share 56,910 57,853 57,445 57,850 Net effect of dilutive stock options, restricted stock units, restricted stock awards and stock issuable under the ESPP 515 1,095 721 1,293 Weighted average common shares for diluted earnings per share 57,425 58,948 58,166 59,143 Net income per share: Basic $ 2.40 $ 1.68 $ 6.11 $ 5.52 Diluted $ 2.37 $ 1.65 $ 6.04 $ 5.40 The number of shares underlying equity-based awards that were excluded from the calculation of diluted earnings per share as their effect would be anti-dilutive was 1,426 thousand and 1,056 thousand during the three and nine months ended September 30, 2024, respectively. The number of shares underlying equity-based awards that were excluded from the calculation of diluted earnings per share as their effect would be anti-dilutive was 452 thousand and 410 thousand during the three and nine months ended September 30, 2023, respectively.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	9 Months Ended
	Sep. 30, 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 condensed 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. See Note 2 “Impact of the Invasion of Ukraine” for more information regarding commitment 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 year ended December 31, 2023. As of September 30, 2024, the undiscounted deferred consideration amounts owed totaled approximately $49.7 million and are expected to be paid as follows: $16.6 million during the remainder of 2024, $16.6 million in 2025, and $16.5 million in 2026. 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 September 30, 2024, $64.9 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	9 Months Ended
	Sep. 30, 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. Segment results are based on the segment’s revenues and operating profit, where segment operating profit is defined as 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. 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 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. 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. Revenues from external clients and operating profit/(loss), before unallocated expenses, by reportable segment for the three and nine months ended September 30, 2024 and 2023, were as follows: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Segment revenues: North America $ 704,613 $ 684,778 $ 2,107,971 $ 2,074,806 Europe 462,914 465,813 1,371,618 1,442,402 Russia — 1,545 — 16,075 Total segment revenues $ 1,167,527 $ 1,152,136 $ 3,479,589 $ 3,533,283 Segment operating profit/(loss): North America $ 155,570 $ 132,438 $ 399,072 $ 386,929 Europe 94,862 64,074 209,919 188,779 Russia — (118) — (5,866) Total segment operating profit $ 250,432 $ 196,394 $ 608,991 $ 569,842 Intersegment transactions were excluded from the above 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. There were no clients that accounted for more than 10% of total segment revenues during the three and nine months ended September 30, 2024 and 2023. Reconciliation of segment operating profit to consolidated income before provision for income taxes is presented below: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Total segment operating profit: $ 250,432 $ 196,394 $ 608,991 $ 569,842 Unallocated amounts: Stock-based compensation expense (42,124) (37,847) (122,599) (109,536) Amortization of intangibles assets (5,707) (5,688) (17,477) (16,708) Other acquisition-related expenses (7,098) (867) (8,777) (2,448) Loss on sale of business — (25,922) — (25,922) Other unallocated expenses (18,524) (12,042) (52,066) (36,483) Income from operations 176,979 114,028 408,072 378,745 Interest and other income, net 13,347 13,931 40,425 37,162 Foreign exchange (loss)/gain (710) 3,893 (1,416) (6,725) Income before provision for income taxes $ 189,616 $ 131,852 $ 447,081 $ 409,182 Geographic Area Information Long-lived assets presented in the table below 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 As of Ukraine $ 58,793 $ 62,653 Belarus 46,627 49,875 United States 37,200 42,510 India 14,141 12,735 Poland 11,632 15,057 Belgium 4,980 3,032 Hungary 4,687 6,683 Other 29,442 42,508 Total $ 207,502 $ 235,053 The table below presents information about the Company’s revenues by client location for the three and nine months ended September 30, 2024 and 2023: Three Months Ended Nine Months Ended 2024 2023 2024 2023 United States $ 666,851 $ 652,757 $ 1,996,566 $ 1,981,816 United Kingdom 126,010 140,718 389,733 448,526 Switzerland 104,268 91,504 304,022 270,862 Germany 53,604 44,843 153,627 132,606 Netherlands 45,816 59,020 142,577 176,528 Canada 22,012 21,808 65,745 76,125 Russia — 1,545 — 13,290 Other locations 148,966 139,941 427,319 433,530 Total $ 1,167,527 $ 1,152,136 $ 3,479,589 $ 3,533,283

ACCUMULATED OTHER COMPREHENSIVE

ACCUMULATED OTHER COMPREHENSIVE LOSS	9 Months Ended
	Sep. 30, 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: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Foreign currency translation Beginning balance $ (67,962) $ (81,158) $ (43,601) $ (101,780) Foreign currency translation 39,596 (33,292) 8,305 (9,231) Net loss reclassified into Loss on sale of business — 23,931 — 23,931 Income tax (expense)/benefit (8,822) 3,560 (1,892) 121 Foreign currency translation, net of tax 30,774 (5,801) 6,413 14,821 Ending balance $ (37,188) $ (86,959) $ (37,188) $ (86,959) Cash flow hedging instruments Beginning balance $ 1,479 $ 10,920 $ 7,819 $ 8,306 Unrealized gain/ (loss) in fair value 1,592 (8,805) (1,797) 7,028 Net gain reclassified into Cost of revenues (exclusive of depreciation and amortization) (4,185) (8,764) (9,040) (21,248) Net gain reclassified into Foreign exchange loss — (211) — (178) Income tax benefit 599 4,036 2,503 3,268 Cash flow hedging instruments, net of tax (1,994) (13,744) (8,334) (11,130) Ending balance (1) $ (515) $ (2,824) $ (515) $ (2,824) Defined benefit plans Beginning balance $ (2,940) $ (1,847) $ (3,258) $ (1,847) Actuarial gains 126 — 439 — Income tax benefit — — 5 — Defined benefit plans, net of tax 126 — 444 — Ending balance $ (2,814) $ (1,847) $ (2,814) $ (1,847) Accumulated other comprehensive loss $ (40,517) $ (91,630) $ (40,517) $ (91,630) (1) As of September 30, 2024, the ending balance of net unrealized loss related to derivatives designated as cash flow hedges is expected to be reclassified into earnings in the next twelve months.

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	9 Months Ended
	Sep. 30, 2024
Subsequent Events [Abstract]
SUBSEQUENT EVENT	SUBSEQUENT EVENTS Acquisition — On November 1, 2024, the Company paid approximately $618.1 million in cash to acquire 99.7% of the outstanding shares of Neoris N.V. (together with its subsidiaries, “NEORIS”). 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. Due to the timing of the acquisition, the initial accounting for the acquisition is incomplete. As such, the Company is not able to disclose certain information relating to the acquisition, including the preliminary fair value of assets acquired and liabilities assumed. The Company expects to complete the initial accounting for this acquisition during the fourth quarter of 2024. Pending Acquisition — On October 7, 2024, the Company announced that it had reached an agreement with FD Technologies plc to acquire First Derivative Ltd (together with its subsidiaries, “First Derivative”), 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. Under the terms of the agreement, the Company will acquire First Derivative for an aggregate purchase price of approximately $307.6 million in cash consideration, subject to customary adjustments for cash, indebtedness and net working capital. On October 24, 2024, the transaction was approved by the shareholders of FD Technologies plc. The transaction is targeted to close during the fourth quarter of 2024; however, the closing of the transaction remains subject to receipt of regulatory approvals and satisfaction of other customary closing conditions.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Pay vs Performance Disclosure
Net income	$ 136,346	$ 98,645	$ 116,243	$ 97,204	$ 120,033	$ 102,292	$ 351,234	$ 319,529

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Sep. 30, 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

ORGANIZATION AND SUMMARY OF S_2

ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
	Sep. 30, 2024
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation — The accompanying unaudited condensed consolidated financial statements of EPAM have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP” or “U.S. GAAP”) and Article 10 of Regulation S-X under the Securities Exchange Act of 1934, as amended. The unaudited condensed consolidated financial statements include the financial statements of EPAM Systems, Inc. and its subsidiaries with all intercompany balances and transactions eliminated.
Use of Estimates	The preparation of these condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in these condensed consolidated financial statements and accompanying notes. Actual results could differ from those estimates, and such differences may be material to the unaudited condensed consolidated financial statements. Operating results for the interim periods are not necessarily indicative of results that may be expected to occur for the entire year. In management’s opinion, the accompanying unaudited condensed consolidated financial statements include all normal and recurring adjustments necessary for a fair presentation of the Company’s financial position as of September 30, 2024 and the results of its operations and its cash flows for the periods presented.
Concentration of Credit and Interest rate risk	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. 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. 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 8 “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.
Foreign currency risk	Foreign currency risk
Adoption of New Accounting Standards and Pending Accounting Standards	Adoption of New Accounting Standards There were no recently adopted accounting standards which had a material impact on the Company’s consolidated financial statements. 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. During the three and nine months ended September 30, 2024, there have been no material updates regarding pending accounting standards as reported in our Annual Report on Form 10-K for the year ended December 31, 2023.
Fair Value of Financial Instruments	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” in the condensed consolidated interim financial statements for additional information regarding derivative financial instruments. The fair value of the contingent consideration 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 rates used to determine the fair value of contingent consideration for the 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%. 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 condensed consolidated statement of income.
Non-Marketable Securities Without Readily Determinable Fair Values	Non-Marketable Securities Without Readily Determinable Fair Values

GOODWILL (Tables)

GOODWILL (Tables)	9 Months Ended
	Sep. 30, 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, 2024 $ 241,860 $ 320,599 $ 562,459 2024 Acquisitions 40,517 12,911 53,428 2023 Acquisitions purchase accounting adjustments 861 — 861 Effect of net foreign currency exchange rate changes 65 5,090 5,155 Balance as of September 30, 2024 $ 283,303 $ 338,600 $ 621,903

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following tables present the fair values of the Company’s financial assets and liabilities measured at fair value on a recurring basis as of September 30, 2024 and December 31, 2023: As of September 30, 2024 Balance Level 1 Level 2 Level 3 Foreign exchange derivative assets $ 3,275 $ — $ 3,275 $ — Total assets measured at fair value on a recurring basis $ 3,275 $ — $ 3,275 $ — Foreign exchange derivative liabilities $ 3,945 $ — $ 3,945 $ — Contingent consideration liabilities 31,998 — — 31,998 Total liabilities measured at fair value on a recurring basis $ 35,943 $ — $ 3,945 $ 31,998 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 liabilities 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 nine months ended September 30, 2024 is as follows: Amount Contingent consideration liabilities as of January 1, 2024 $ 23,150 Acquisition date fair value of contingent consideration — 2024 Acquisitions 9,756 Changes in fair value of contingent consideration included in Interest and other income, net 4,031 Payment of contingent consideration for previously acquired businesses (5,000) Effect of foreign currency exchange rate changes, net 61 Contingent consideration liabilities as of September 30, 2024 $ 31,998
Schedule of Estimated Fair Values of Financial Assets and Liabilities not Measured at Fair Value on 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 September 30, 2024 Financial Assets: Cash equivalents: Money market funds $ 149,142 $ 149,142 $ 149,142 $ — $ — Time deposits 28,921 28,921 — 28,921 — Total cash equivalents $ 178,063 $ 178,063 $ 149,142 $ 28,921 $ — Time deposits included in Short-term investments $ 20,920 $ 20,920 $ — $ 20,920 $ — Financial Liabilities: Borrowings under the 2021 Credit Agreement $ 25,000 $ 25,000 $ — $ 25,000 $ — Deferred consideration for asset acquisition $ 47,083 $ 47,083 $ — $ 47,083 $ — 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 the 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)	9 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Fair Value of Derivative Instruments	The fair value of derivative instruments on the Company’s condensed consolidated balance sheets as of September 30, 2024 and December 31, 2023 were as follows: As of September 30, 2024 As of December 31, 2023 Balance Sheet Classification Asset Derivatives Liability Derivatives Asset Derivatives Liability Derivatives Foreign exchange forward contracts designated as hedging instruments Prepaid expenses and other current assets $ 3,275 $ 10,416 Accrued expenses and other current liabilities $ 3,945 $ 248

LEASES (Tables)

LEASES (Tables)	9 Months Ended
	Sep. 30, 2024
Leases [Abstract]
Schedule of Components of Lease Cost	During the three and nine months ended September 30, 2024 and 2023, the components of lease cost were as follows: Three Months Ended Nine Months Ended Income Statement Classification 2024 2023 2024 2023 Operating lease cost Selling, general and administrative expenses $ 10,893 $ 11,592 $ 32,579 $ 34,725 Variable lease cost Selling, general and administrative expenses 2,913 2,905 7,981 9,941 Short-term lease cost Selling, general and administrative expenses 881 998 2,787 4,609 Total lease cost $ 14,687 $ 15,495 $ 43,347 $ 49,275
Schedule of Supplemental Cash Flow Information	Supplemental cash flow information related to leases for the three and nine months ended September 30, 2024 and 2023 was as follows: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used for operating leases $ 11,683 $ 12,383 $ 34,308 $ 37,628 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 837 $ 3,815 $ 11,823 $ 10,843 Non-cash net increase due to lease modifications: Operating lease right-of-use assets $ 5,103 $ 1,312 $ 11,342 $ 7,203 Operating lease liabilities $ 5,245 $ 1,276 $ 11,376 $ 7,416
Schedule of Weighted Average Lease Terms and Discount Rates	Weighted average remaining lease term and discount rate as of September 30, 2024 and 2023 were as follows: As of September 30, 2024 As of September 30, 2023 Weighted average remaining lease term, in years: Operating leases 4.6 5.0 Weighted average discount rate: Operating leases 4.3 % 3.9 %
Schedule of Maturity of Operating Lease Liabilities	As of September 30, 2024, operating lease liabilities will mature as follows: Year ending December 31, Lease Payments 2024 (excluding nine months ended September 30, 2024) $ 11,098 2025 40,667 2026 34,216 2027 24,747 2028 20,533 Thereafter 21,728 Total lease payments 152,989 Less: imputed interest (12,877) Total $ 140,112

DEBT (Tables)

DEBT (Tables)	9 Months Ended
	Sep. 30, 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 As of Outstanding debt $ 25,000 $ 25,000 Interest rate 5.9 % 6.3 % Available borrowing capacity $ 675,000 $ 675,000 Maximum borrowing capacity $ 700,000 $ 700,000

COST OPTIMIZATION PROGRAMS (Tab

COST OPTIMIZATION PROGRAMS (Tables)	9 Months Ended
	Sep. 30, 2024
Restructuring and Related Activities [Abstract]
Schedule of Restructuring and Related Costs	Activity in the Company’s restructuring reserves was as follows: Balance at December 31, 2023 Charges Payments Made Balance at September 30, 2024 2024 Cost Optimization Program Employee separation costs $ — $ 17,132 $ (13,506) $ 3,626 Contract termination charges — 286 — 286 2023 Cost Optimization Program Employee separation costs 6,966 9,015 (15,981) — Total $ 6,966 $ 26,433 $ (29,487) $ 3,912

REVENUES (Tables)

REVENUES (Tables)	9 Months Ended
	Sep. 30, 2024
Revenue from Contract with Customer [Abstract]
Schedule of Disaggregation of Revenues	The following tables present the disaggregation of the Company’s revenues by client location, including a reconciliation of the disaggregated revenues with the reportable segments (Note 16 “Segment Information”) for the periods indicated: Three Months Ended September 30, 2024 Reportable Segments North America Europe Consolidated Revenues Client Locations Americas $ 669,582 $ 27,585 $ 697,167 EMEA (1) 34,679 410,188 444,867 APAC 352 25,141 25,493 CEE (1) — — — Revenues $ 704,613 $ 462,914 $ 1,167,527 Nine Months Ended September 30, 2024 Reportable Segments North America Europe Consolidated Revenues Client Locations Americas $ 2,002,942 $ 78,344 $ 2,081,286 EMEA (1) 103,220 1,222,215 1,325,435 APAC 1,809 71,059 72,868 CEE (1) — — — Revenues $ 2,107,971 $ 1,371,618 $ 3,479,589 (1) As a result of the Company’s exit from Russia and 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. Starting in 2024, revenues from the CEE region are included in the EMEA region. Three Months Ended September 30, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Client Locations Americas $ 654,717 $ 22,693 $ — $ 677,410 EMEA 29,251 416,986 — 446,237 APAC 786 24,265 — 25,051 CEE 24 1,869 1,545 3,438 Revenues $ 684,778 $ 465,813 $ 1,545 $ 1,152,136 Nine Months Ended September 30, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Client Locations Americas $ 1,991,871 $ 73,797 $ 631 $ 2,066,299 EMEA 80,252 1,289,007 — 1,369,259 APAC 2,161 73,919 — 76,080 CEE 522 5,679 15,444 21,645 Revenues $ 2,074,806 $ 1,442,402 $ 16,075 $ 3,533,283 The following tables present the disaggregation of the Company’s revenues by industry vertical, including a reconciliation of the disaggregated revenues with the reportable segments (Note 16 “Segment Information”) for the periods indicated: Three Months Ended September 30, 2024 Reportable Segments North America Europe Consolidated Revenues Industry Verticals Consumer Goods, Retail & Travel (1) $ 107,866 $ 143,259 $ 251,125 Financial Services 129,339 125,296 254,635 Software & Hi-Tech 131,145 46,928 178,073 Business Information & Media 115,121 52,273 167,394 Life Sciences & Healthcare 120,659 21,675 142,334 Emerging Verticals 100,483 73,483 173,966 Revenues $ 704,613 $ 462,914 $ 1,167,527 Nine Months Ended September 30, 2024 Reportable Segments North America Europe Consolidated Revenues Industry Verticals Consumer Goods, Retail & Travel (1) $ 339,556 $ 423,026 $ 762,582 Financial Services 377,000 364,740 741,740 Software & Hi-Tech 392,600 127,727 520,327 Business Information & Media 332,602 170,872 503,474 Life Sciences & Healthcare 362,983 59,644 422,627 Emerging Verticals 303,230 225,609 528,839 Revenues $ 2,107,971 $ 1,371,618 $ 3,479,589 Three Months Ended September 30, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Industry Verticals Consumer Goods, Retail & Travel (1) $ 115,778 $ 146,837 $ 342 $ 262,957 Financial Services 131,499 114,122 814 246,435 Software & Hi-Tech 136,520 37,545 281 174,346 Business Information & Media 104,863 78,983 15 183,861 Life Sciences & Healthcare 109,137 15,143 (36) 124,244 Emerging Verticals 86,981 73,183 129 160,293 Revenues $ 684,778 $ 465,813 $ 1,545 $ 1,152,136 Nine Months Ended September 30, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Industry Verticals Consumer Goods, Retail & Travel (1) $ 359,475 $ 451,531 $ 3,770 $ 814,776 Financial Services 410,527 358,091 7,450 776,068 Software & Hi-Tech 422,073 115,137 1,545 538,755 Business Information & Media 327,378 248,351 196 575,925 Life Sciences & Healthcare 305,700 44,123 120 349,943 Emerging Verticals 249,653 225,169 2,994 477,816 Revenues $ 2,074,806 $ 1,442,402 $ 16,075 $ 3,533,283 (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 16 “Segment Information”) for the periods indicated: Three Months Ended September 30, 2024 Reportable Segments North America Europe Consolidated Revenues Contract Types Time-and-material $ 596,111 $ 372,056 $ 968,167 Fixed-price 102,239 89,276 191,515 Licensing and other revenues 6,263 1,582 7,845 Revenues $ 704,613 $ 462,914 $ 1,167,527 Nine Months Ended September 30, 2024 Reportable Segments North America Europe Consolidated Revenues Contract Types Time-and-material $ 1,793,852 $ 1,099,462 $ 2,893,314 Fixed-price 296,602 266,888 563,490 Licensing and other revenues 17,517 5,268 22,785 Revenues $ 2,107,971 $ 1,371,618 $ 3,479,589 Three Months Ended September 30, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Contract Types Time-and-material $ 602,765 $ 391,479 $ 1,355 $ 995,599 Fixed-price 73,640 73,226 190 147,056 Licensing and other revenues 8,373 1,108 — 9,481 Revenues $ 684,778 $ 465,813 $ 1,545 $ 1,152,136 Nine Months Ended September 30, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Contract Types Time-and-material $ 1,854,159 $ 1,233,271 $ 11,168 $ 3,098,598 Fixed-price 202,144 205,897 4,873 412,914 Licensing and other revenues 18,503 3,234 34 21,771 Revenues $ 2,074,806 $ 1,442,402 $ 16,075 $ 3,533,283 Timing of Revenue Recognition The following tables present the timing of revenue recognition reconciled with the Company’s reportable segments (Note 16 “Segment Information”) for the periods indicated: Three Months Ended September 30, 2024 Reportable Segments North America Europe Consolidated Revenues Timing of Revenue Recognition Transferred over time $ 701,014 $ 461,923 $ 1,162,937 Transferred at a point of time 3,599 991 4,590 Revenues $ 704,613 $ 462,914 $ 1,167,527 Nine Months Ended September 30, 2024 Reportable Segments North America Europe Consolidated Revenues Timing of Revenue Recognition Transferred over time $ 2,097,251 $ 1,368,155 $ 3,465,406 Transferred at a point of time 10,720 3,463 14,183 Revenues $ 2,107,971 $ 1,371,618 $ 3,479,589 Three Months Ended September 30, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Timing of Revenue Recognition Transferred over time $ 682,410 $ 465,286 $ 1,545 $ 1,149,241 Transferred at a point of time 2,368 527 — 2,895 Revenues $ 684,778 $ 465,813 $ 1,545 $ 1,152,136 Nine Months Ended September 30, 2023 Reportable Segments North America Europe Russia Consolidated Revenues Timing of Revenue Recognition Transferred over time $ 2,066,081 $ 1,440,682 $ 16,042 $ 3,522,805 Transferred at a point of time 8,725 1,720 33 10,478 Revenues $ 2,074,806 $ 1,442,402 $ 16,075 $ 3,533,283
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 September 30, 2024. The Company applies a practical expedient and does not disclose the value of unsatisfied performance obligations for contracts (i) that have an original expected duration of one year or less and (ii) 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 $ 23,832 $ 3,269 $ — $ — $ 27,101
Schedule of Contract Balances	The following table provides information on the classification of contract assets and liabilities in the condensed consolidated balance sheets: As of As of Contract assets included in Trade receivables and contract assets, net $ 56,748 $ 24,309 Contract liabilities included in Accrued expenses and other current liabilities $ 32,458 $ 27,988 Contract liabilities included in Other noncurrent liabilities $ 290 $ 951

STOCKHOLDERS_ EQUITY (Tables)

STOCKHOLDERS’ EQUITY (Tables)	9 Months Ended
	Sep. 30, 2024
Share-Based Payment Arrangement [Abstract]
Schedule of Components of Stock-Based Compensation Expenses	The following table summarizes the components of stock-based compensation expense recognized in the Company’s condensed consolidated statements of income for the periods indicated: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Cost of revenues (exclusive of depreciation and amortization) $ 19,576 $ 18,142 $ 58,870 $ 49,569 Selling, general and administrative expenses 22,548 19,705 63,729 59,967 Total $ 42,124 $ 37,847 $ 122,599 $ 109,536
Schedule of Stock Options Activity	Stock option activity under the Company’s plans is set forth below: Number of Weighted Average Aggregate Weighted Average Options outstanding at January 1, 2024 1,629 $ 125.88 Options granted 81 $ 296.87 Options exercised (409) $ 43.83 Options forfeited (9) $ 276.69 Options expired (4) $ 373.38 Options outstanding at September 30, 2024 1,288 $ 160.72 $ 94,480 3.9 Options vested and exercisable as of September 30, 2024 1,046 $ 128.05 $ 94,480 2.8 Options expected to vest as of September 30, 2024 231 $ 302.02 $ — 8.4
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 nine months ended September 30, 2024: 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 Unvested service-based awards outstanding at January 1, 2024 1,074 $ 292.45 98 $ 287.36 Awards granted 535 $ 289.73 34 $ 298.35 Awards modified 1 $ 366.27 (1) $ 114.30 Awards vested (335) $ 287.43 (39) $ 272.94 Awards forfeited/cancelled (77) $ 300.63 (2) $ 295.91 Unvested service-based awards outstanding at September 30, 2024 1,198 $ 292.15 90 $ 298.91
Schedule of Performance-Based Awards Activity	The table below summarizes activity related to the Company’s equity-classified performance-based restricted stock unit awards (“PSUs”) for the nine months ended September 30, 2024: Equity-Classified Equity-Settled Restricted Stock Units Number of Shares Weighted Average Grant Date Unvested performance-based awards outstanding at January 1, 2024 13 $ 441.87 Awards granted 38 $ 327.31 Awards vested (3) $ 560.97 Awards forfeited/cancelled (1) $ 594.50 Unvested performance-based awards outstanding at September 30, 2024 47 $ 333.56

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	9 Months Ended
	Sep. 30, 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: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Numerator for basic and diluted earnings per share: Net income $ 136,346 $ 97,204 $ 351,234 $ 319,529 Numerator for basic and diluted earnings per share $ 136,346 $ 97,204 $ 351,234 $ 319,529 Denominator: Weighted average common shares for basic earnings per share 56,910 57,853 57,445 57,850 Net effect of dilutive stock options, restricted stock units, restricted stock awards and stock issuable under the ESPP 515 1,095 721 1,293 Weighted average common shares for diluted earnings per share 57,425 58,948 58,166 59,143 Net income per share: Basic $ 2.40 $ 1.68 $ 6.11 $ 5.52 Diluted $ 2.37 $ 1.65 $ 6.04 $ 5.40

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	9 Months Ended
	Sep. 30, 2024
Segment Reporting [Abstract]
Schedule of Revenues from External Customers and Operating Profit/(Loss), Before Unallocated Expenses	Revenues from external clients and operating profit/(loss), before unallocated expenses, by reportable segment for the three and nine months ended September 30, 2024 and 2023, were as follows: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Segment revenues: North America $ 704,613 $ 684,778 $ 2,107,971 $ 2,074,806 Europe 462,914 465,813 1,371,618 1,442,402 Russia — 1,545 — 16,075 Total segment revenues $ 1,167,527 $ 1,152,136 $ 3,479,589 $ 3,533,283 Segment operating profit/(loss): North America $ 155,570 $ 132,438 $ 399,072 $ 386,929 Europe 94,862 64,074 209,919 188,779 Russia — (118) — (5,866) Total segment operating profit $ 250,432 $ 196,394 $ 608,991 $ 569,842
Schedule of Reconciliation of Segment Operating Profit to Consolidated Income Before Provision for Income Taxes	Reconciliation of segment operating profit to consolidated income before provision for income taxes is presented below: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Total segment operating profit: $ 250,432 $ 196,394 $ 608,991 $ 569,842 Unallocated amounts: Stock-based compensation expense (42,124) (37,847) (122,599) (109,536) Amortization of intangibles assets (5,707) (5,688) (17,477) (16,708) Other acquisition-related expenses (7,098) (867) (8,777) (2,448) Loss on sale of business — (25,922) — (25,922) Other unallocated expenses (18,524) (12,042) (52,066) (36,483) Income from operations 176,979 114,028 408,072 378,745 Interest and other income, net 13,347 13,931 40,425 37,162 Foreign exchange (loss)/gain (710) 3,893 (1,416) (6,725) Income before provision for income taxes $ 189,616 $ 131,852 $ 447,081 $ 409,182
Schedule of Physical Location and Values of Long-Lived Assets	Physical locations and values of the Company’s long-lived assets are presented below: As of As of Ukraine $ 58,793 $ 62,653 Belarus 46,627 49,875 United States 37,200 42,510 India 14,141 12,735 Poland 11,632 15,057 Belgium 4,980 3,032 Hungary 4,687 6,683 Other 29,442 42,508 Total $ 207,502 $ 235,053
Schedule of Revenues by Customer Location	The table below presents information about the Company’s revenues by client location for the three and nine months ended September 30, 2024 and 2023: Three Months Ended Nine Months Ended 2024 2023 2024 2023 United States $ 666,851 $ 652,757 $ 1,996,566 $ 1,981,816 United Kingdom 126,010 140,718 389,733 448,526 Switzerland 104,268 91,504 304,022 270,862 Germany 53,604 44,843 153,627 132,606 Netherlands 45,816 59,020 142,577 176,528 Canada 22,012 21,808 65,745 76,125 Russia — 1,545 — 13,290 Other locations 148,966 139,941 427,319 433,530 Total $ 1,167,527 $ 1,152,136 $ 3,479,589 $ 3,533,283

ACCUMULATED OTHER COMPREHENSI_2

ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)	9 Months Ended
	Sep. 30, 2024
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Loss	The following table summarizes the changes in the accumulated balances for each component of accumulated other comprehensive loss: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Foreign currency translation Beginning balance $ (67,962) $ (81,158) $ (43,601) $ (101,780) Foreign currency translation 39,596 (33,292) 8,305 (9,231) Net loss reclassified into Loss on sale of business — 23,931 — 23,931 Income tax (expense)/benefit (8,822) 3,560 (1,892) 121 Foreign currency translation, net of tax 30,774 (5,801) 6,413 14,821 Ending balance $ (37,188) $ (86,959) $ (37,188) $ (86,959) Cash flow hedging instruments Beginning balance $ 1,479 $ 10,920 $ 7,819 $ 8,306 Unrealized gain/ (loss) in fair value 1,592 (8,805) (1,797) 7,028 Net gain reclassified into Cost of revenues (exclusive of depreciation and amortization) (4,185) (8,764) (9,040) (21,248) Net gain reclassified into Foreign exchange loss — (211) — (178) Income tax benefit 599 4,036 2,503 3,268 Cash flow hedging instruments, net of tax (1,994) (13,744) (8,334) (11,130) Ending balance (1) $ (515) $ (2,824) $ (515) $ (2,824) Defined benefit plans Beginning balance $ (2,940) $ (1,847) $ (3,258) $ (1,847) Actuarial gains 126 — 439 — Income tax benefit — — 5 — Defined benefit plans, net of tax 126 — 444 — Ending balance $ (2,814) $ (1,847) $ (2,814) $ (1,847) Accumulated other comprehensive loss $ (40,517) $ (91,630) $ (40,517) $ (91,630) (1) As of September 30, 2024, the ending balance of net unrealized loss related to derivatives designated as cash flow hedges is expected to be reclassified into earnings in the next twelve months.

ORGANIZATION AND SUMMARY OF S_3

ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Risks and Uncertainties) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Concentration Risk [Line Items]
Cash and cash equivalents	$ 2,036,394	$ 2,036,235
Ukraine
Concentration Risk [Line Items]
Cash and cash equivalents	63,600
Belarus
Concentration Risk [Line Items]
Cash and cash equivalents	$ 29,300

IMPACT OF THE INVASION OF UKR_2

IMPACT OF THE INVASION OF UKRAINE (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Mar. 04, 2022
Unusual or Infrequent Item, or Both [Line Items]
Property and equipment, net	$ 207,502,000		$ 207,502,000		$ 235,053,000
Operating lease, right-of-use asset	129,929,000		129,929,000		134,898,000
Cost of revenues (exclusive of depreciation and amortization)	763,992,000	$ 794,265,000	2,409,183,000	$ 2,458,881,000
Selling, general and administrative expenses	206,820,000	194,829,000	599,331,000	601,093,000
Humanitarian Commitment
Unusual or Infrequent Item, or Both [Line Items]
Commitments related to operating lease agreements that have not yet commenced	28,300,000		28,300,000
Nonoperating expense	3,600,000	3,600,000	9,500,000	13,600,000
Cost of revenues (exclusive of depreciation and amortization)	600,000	3,000,000	1,800,000	8,300,000
Selling, general and administrative expenses	3,000,000	600,000	7,700,000	5,300,000
Ukraine
Unusual or Infrequent Item, or Both [Line Items]
Property and equipment, net	58,793,000		58,793,000		$ 62,653,000
Operating lease, right-of-use asset	4,200,000		4,200,000
Ukraine | Cost of revenues (exclusive of depreciation and amortization)
Unusual or Infrequent Item, or Both [Line Items]
Standby resources expense		0		9,400,000
Ukraine | Selling, general and administrative expenses
Unusual or Infrequent Item, or Both [Line Items]
Standby resources expense	0	$ 400,000	900,000	$ 900,000
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	58,800,000		58,800,000
Ukraine | Construction in Progress
Unusual or Infrequent Item, or Both [Line Items]
Property and equipment, net	52,200,000		52,200,000
Ukraine | Computer Equipment
Unusual or Infrequent Item, or Both [Line Items]
Property and equipment, net	3,000,000		3,000,000
Ukraine | Furniture and Fixtures
Unusual or Infrequent Item, or Both [Line Items]
Property and equipment, net	3,100,000		3,100,000
Ukraine | Leasehold Improvements
Unusual or Infrequent Item, or Both [Line Items]
Property and equipment, net	$ 500,000		$ 500,000

ACQUISITIONS (Narrative) (Detai

ACQUISITIONS (Narrative) (Details) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2024 USD ($) business	Dec. 31, 2023 USD ($) business
2024 Acquisitions
Business Acquisition [Line Items]
Number of acquisitions | business	3
Cash consideration	$ 74.2
Contingent consideration fair value	9.8
2024 Acquisitions | Customer Relationships
Business Acquisition [Line Items]
Finite-lived intangible assets acquired, amount	$ 20.3
2023 Acquisitions
Business Acquisition [Line Items]
Number of acquisitions | business		2
Cash consideration		$ 42.6
Contingent consideration fair value		14.9
2023 Acquisitions | Customer Relationships
Business Acquisition [Line Items]
Finite-lived intangible assets acquired, amount		$ 13.9

GOODWILL (Goodwill Roll Forward

GOODWILL (Goodwill Roll Forward) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($)
Total
Beginning balance	$ 562,459
2024 Acquisitions	53,428
2023 Acquisitions purchase accounting adjustments	861
Effect of net foreign currency exchange rate changes	5,155
Ending balance	621,903
North America
Total
Beginning balance	241,860
2024 Acquisitions	40,517
2023 Acquisitions purchase accounting adjustments	861
Effect of net foreign currency exchange rate changes	65
Ending balance	283,303
Europe
Total
Beginning balance	320,599
2024 Acquisitions	12,911
2023 Acquisitions purchase accounting adjustments	0
Effect of net foreign currency exchange rate changes	5,090
Ending balance	$ 338,600

GOODWILL (Goodwill Accumulated

GOODWILL (Goodwill Accumulated Impairment Losses) (Details) - USD ($)	Sep. 30, 2024	Dec. 31, 2023
North America
Goodwill [Line Items]
Accumulated impairment loss	$ 0	$ 0
Europe
Goodwill [Line Items]
Accumulated impairment loss	$ 0	$ 0

FAIR VALUE MEASUREMENTS (Financ

FAIR VALUE MEASUREMENTS (Financial Assets and Liabilities at Fair Value on Recurring Basis) (Details) - Recurring - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financial Assets:
Total assets measured at fair value on a recurring basis	$ 3,275	$ 10,416
Financial Liabilities:
Contingent consideration liabilities	31,998	23,150
Total liabilities measured at fair value on a recurring basis	35,943	23,398
Foreign Exchange Derivative Contracts
Financial Assets:
Foreign exchange derivative assets	3,275	10,416
Financial Liabilities:
Foreign exchange derivative liabilities	3,945	248
Level 1
Financial Assets:
Total assets measured at fair value on a recurring basis	0	0
Financial Liabilities:
Contingent consideration liabilities	0	0
Total liabilities measured at fair value on a recurring basis	0	0
Level 1 | Foreign Exchange Derivative Contracts
Financial Assets:
Foreign exchange derivative assets	0	0
Financial Liabilities:
Foreign exchange derivative liabilities	0	0
Level 2
Financial Assets:
Total assets measured at fair value on a recurring basis	3,275	10,416
Financial Liabilities:
Contingent consideration liabilities	0	0
Total liabilities measured at fair value on a recurring basis	3,945	248
Level 2 | Foreign Exchange Derivative Contracts
Financial Assets:
Foreign exchange derivative assets	3,275	10,416
Financial Liabilities:
Foreign exchange derivative liabilities	3,945	248
Level 3
Financial Assets:
Total assets measured at fair value on a recurring basis	0	0
Financial Liabilities:
Contingent consideration liabilities	31,998	23,150
Total liabilities measured at fair value on a recurring basis	31,998	23,150
Level 3 | Foreign Exchange Derivative Contracts
Financial Assets:
Foreign exchange derivative assets	0	0
Financial Liabilities:
Foreign exchange derivative liabilities	$ 0	$ 0

FAIR VALUE MEASUREMENTS (Narrat

FAIR VALUE MEASUREMENTS (Narrative) (Details) - Discount Rate	Sep. 30, 2024	Dec. 31, 2023
Minimum | 2024 Acquisitions
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input to determine fair value of contingent consideration	0.12
Maximum | Software Licenses
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input to determine fair value of contingent consideration	0.160	0.160
Maximum | 2024 Acquisitions
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input to determine fair value of contingent consideration	0.20

FAIR VALUE MEASUREMENTS (Acquis

FAIR VALUE MEASUREMENTS (Acquisition-Related Contingent Consideration Roll Forward) (Details) - Level 3 $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($)
Amount
Beginning balance	$ 23,150
Ending balance	31,998
Interest and other income, net
Amount
Acquisition date fair value of contingent consideration — 2024 Acquisitions	9,756
Changes in fair value of contingent consideration included in Interest and other income, net	4,031
Payment of contingent consideration for previously acquired businesses	(5,000)
Effect of foreign currency exchange rate changes, net	$ 61

FAIR VALUE MEASUREMENTS (Estima

FAIR VALUE MEASUREMENTS (Estimated Fair Values of the Financial Assets and Liabilities not Measured at Fair Value on a Recurring Basis) (Details) - Recurring - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Balance
Financial Assets:
Cash equivalents	$ 178,063	$ 273,330
Financial Liabilities:
Deferred consideration for asset acquisition	47,083	46,954
Balance | Time deposits
Financial Assets:
Time deposits included in Short-term investments	20,920	60,739
Balance | Credit Facility 2021 | Revolving Credit Facility
Financial Liabilities:
Borrowings under the 2021 Credit Agreement	25,000	25,000
Balance | Money market funds
Financial Assets:
Cash equivalents	149,142	168,120
Balance | Time deposits
Financial Assets:
Cash equivalents	28,921	105,210
Estimated Fair Value
Financial Assets:
Cash equivalents	178,063	273,330
Financial Liabilities:
Deferred consideration for asset acquisition	47,083	46,954
Estimated Fair Value | Time deposits
Financial Assets:
Time deposits included in Short-term investments	20,920	60,739
Estimated Fair Value | Credit Facility 2021 | Revolving Credit Facility
Financial Liabilities:
Borrowings under the 2021 Credit Agreement	25,000	25,000
Estimated Fair Value | Money market funds
Financial Assets:
Cash equivalents	149,142	168,120
Estimated Fair Value | Time deposits
Financial Assets:
Cash equivalents	28,921	105,210
Estimated Fair Value | Level 1
Financial Assets:
Cash equivalents	149,142	168,120
Financial Liabilities:
Deferred consideration for asset acquisition	0	0
Estimated Fair Value | Level 1 | Time deposits
Financial Assets:
Time deposits included in Short-term investments	0	0
Estimated Fair Value | Level 1 | Credit Facility 2021 | Revolving Credit Facility
Financial Liabilities:
Borrowings under the 2021 Credit Agreement	0	0
Estimated Fair Value | Level 1 | Money market funds
Financial Assets:
Cash equivalents	149,142	168,120
Estimated Fair Value | Level 1 | Time deposits
Financial Assets:
Cash equivalents	0	0
Estimated Fair Value | Level 2
Financial Assets:
Cash equivalents	28,921	105,210
Financial Liabilities:
Deferred consideration for asset acquisition	47,083	46,954
Estimated Fair Value | Level 2 | Time deposits
Financial Assets:
Time deposits included in Short-term investments	20,920	60,739
Estimated Fair Value | Level 2 | Credit Facility 2021 | Revolving Credit Facility
Financial Liabilities:
Borrowings under the 2021 Credit Agreement	25,000	25,000
Estimated Fair Value | Level 2 | Money market funds
Financial Assets:
Cash equivalents	0	0
Estimated Fair Value | Level 2 | Time deposits
Financial Assets:
Cash equivalents	28,921	105,210
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
Financial Assets:
Time deposits included in Short-term investments	0	0
Estimated Fair Value | Level 3 | Credit Facility 2021 | Revolving Credit Facility
Financial Liabilities:
Borrowings under the 2021 Credit Agreement	0	0
Estimated Fair Value | Level 3 | Money market funds
Financial Assets:
Cash equivalents	0	0
Estimated Fair Value | Level 3 | Time deposits
Financial Assets:
Cash equivalents	$ 0	$ 0

FAIR VALUE MEASUREMENTS (Non Ma

FAIR VALUE MEASUREMENTS (Non Marketable Securities Without Readily Determinable Fair Value) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Carrying amount of equity securities that do not have readily determinable fair values	$ 39.1	$ 31.7

DERIVATIVE FINANCIAL INSTRUME_3

DERIVATIVE FINANCIAL INSTRUMENTS (Fair Value of Derivative Instruments) (Details) - Foreign Exchange Derivative Contracts - USD ($)	Sep. 30, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Financial collateral required to be posted	$ 0
Cash flow Hedging | Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Asset Derivatives	3,275,000	$ 10,416,000
Liability Derivatives	$ 3,945,000	$ 248,000

LEASES (Narrative) (Details)

LEASES (Narrative) (Details) $ in Millions	Sep. 30, 2024 USD ($)
Lessee, Lease, Description [Line Items]
Commitments related to operating lease agreements that have not yet commenced	$ 3.6
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	1 month 6 days
Lease term of lease agreements that have not yet commenced	3 years
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	7 years 3 months 18 days
Lease term of lease agreements that have not yet commenced	5 years 1 month 6 days

LEASES (Components of Lease Cos

LEASES (Components of Lease Cost) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Lessee, Lease, Description [Line Items]
Total lease cost	$ 14,687	$ 15,495	$ 43,347	$ 49,275
Selling, general and administrative expenses
Lessee, Lease, Description [Line Items]
Operating lease cost	10,893	11,592	32,579	34,725
Variable lease cost	2,913	2,905	7,981	9,941
Short-term lease cost	$ 881	$ 998	$ 2,787	$ 4,609

LEASES (Supplemental Cash Flow

LEASES (Supplemental Cash Flow Information) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows used for operating leases	$ 11,683	$ 12,383	$ 34,308	$ 37,628
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	837	3,815	11,823	10,843
Non-cash net increase due to lease modifications:
Operating lease right-of-use assets	5,103	1,312	11,342	7,203
Operating lease liabilities	$ 5,245	$ 1,276	$ 11,376	$ 7,416

LEASES (Weighted Average Lease

LEASES (Weighted Average Lease Terms and Discount Rates) (Details)	Sep. 30, 2024	Sep. 30, 2023
Weighted average remaining lease term, in years:
Operating leases	4 years 7 months 6 days	5 years
Weighted average discount rate:
Operating leases	4.30%	3.90%

LEASES (Maturity of Operating L

LEASES (Maturity of Operating Lease Liabilities) (Details) $ in Thousands	Sep. 30, 2024 USD ($)
Leases [Abstract]
2024 (excluding nine months ended September 30, 2024)	$ 11,098
2025	40,667
2026	34,216
2027	24,747
2028	20,533
Thereafter	21,728
Total lease payments	152,989
Less: imputed interest	(12,877)
Total	$ 140,112

DEBT (Narrative) (Details)

DEBT (Narrative) (Details) - Revolving Credit Facility - Line of Credit	Oct. 21, 2021 USD ($)	Sep. 30, 2024 USD ($)	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	$ 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	Sep. 30, 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	5.90%	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

COST OPTIMIZATION PROGRAMS (Nar

COST OPTIMIZATION PROGRAMS (Narrative) (Details) $ in Millions	Sep. 30, 2024 USD ($)
2024 Cost Optimization Program
Subsequent Event [Line Items]
Expected cost remaining	$ 14

COST OPTIMIZATION PROGRAMS (Act

COST OPTIMIZATION PROGRAMS (Activity in Restructuring Reserves) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($)
Restructuring Reserve [Roll Forward]
Balance at December 31, 2023	$ 6,966
Charges	26,433
Payments Made	(29,487)
Balance at September 30, 2024	3,912
Employee separation costs | 2024 Cost Optimization Program
Restructuring Reserve [Roll Forward]
Balance at December 31, 2023	0
Charges	17,132
Payments Made	(13,506)
Balance at September 30, 2024	3,626
Employee separation costs | 2023 Cost Optimization Program
Restructuring Reserve [Roll Forward]
Balance at December 31, 2023	6,966
Charges	9,015
Payments Made	(15,981)
Balance at September 30, 2024	0
Contract termination charges | 2024 Cost Optimization Program
Restructuring Reserve [Roll Forward]
Balance at December 31, 2023	0
Charges	286
Payments Made	0
Balance at September 30, 2024	$ 286

REVENUES (Schedule of Disaggreg

REVENUES (Schedule of Disaggregation of Revenues) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Revenues	$ 1,167,527	$ 1,152,136	$ 3,479,589	$ 3,533,283
Revenues from performance obligations satisfied in previous period	1,600	9,200	15,000	7,100
Transferred over time
Disaggregation of Revenue [Line Items]
Revenues	1,162,937	1,149,241	3,465,406	3,522,805
Transferred at a point of time
Disaggregation of Revenue [Line Items]
Revenues	4,590	2,895	14,183	10,478
Time-and-material
Disaggregation of Revenue [Line Items]
Revenues	968,167	995,599	2,893,314	3,098,598
Fixed-price
Disaggregation of Revenue [Line Items]
Revenues	191,515	147,056	563,490	412,914
Licensing and other revenues
Disaggregation of Revenue [Line Items]
Revenues	7,845	9,481	22,785	21,771
Consumer Goods, Retail & Travel
Disaggregation of Revenue [Line Items]
Revenues	251,125	262,957	762,582	814,776
Financial Services
Disaggregation of Revenue [Line Items]
Revenues	254,635	246,435	741,740	776,068
Software & Hi-Tech
Disaggregation of Revenue [Line Items]
Revenues	178,073	174,346	520,327	538,755
Business Information & Media
Disaggregation of Revenue [Line Items]
Revenues	167,394	183,861	503,474	575,925
Life Sciences & Healthcare
Disaggregation of Revenue [Line Items]
Revenues	142,334	124,244	422,627	349,943
Emerging Verticals
Disaggregation of Revenue [Line Items]
Revenues	173,966	160,293	528,839	477,816
Americas
Disaggregation of Revenue [Line Items]
Revenues	697,167	677,410	2,081,286	2,066,299
EMEA
Disaggregation of Revenue [Line Items]
Revenues	444,867	446,237	1,325,435	1,369,259
APAC
Disaggregation of Revenue [Line Items]
Revenues	25,493	25,051	72,868	76,080
CEE
Disaggregation of Revenue [Line Items]
Revenues	0	3,438	0	21,645
North America
Disaggregation of Revenue [Line Items]
Revenues	704,613	684,778	2,107,971	2,074,806
North America | Transferred over time
Disaggregation of Revenue [Line Items]
Revenues	701,014	682,410	2,097,251	2,066,081
North America | Transferred at a point of time
Disaggregation of Revenue [Line Items]
Revenues	3,599	2,368	10,720	8,725
North America | Time-and-material
Disaggregation of Revenue [Line Items]
Revenues	596,111	602,765	1,793,852	1,854,159
North America | Fixed-price
Disaggregation of Revenue [Line Items]
Revenues	102,239	73,640	296,602	202,144
North America | Licensing and other revenues
Disaggregation of Revenue [Line Items]
Revenues	6,263	8,373	17,517	18,503
North America | Consumer Goods, Retail & Travel
Disaggregation of Revenue [Line Items]
Revenues	107,866	115,778	339,556	359,475
North America | Financial Services
Disaggregation of Revenue [Line Items]
Revenues	129,339	131,499	377,000	410,527
North America | Software & Hi-Tech
Disaggregation of Revenue [Line Items]
Revenues	131,145	136,520	392,600	422,073
North America | Business Information & Media
Disaggregation of Revenue [Line Items]
Revenues	115,121	104,863	332,602	327,378
North America | Life Sciences & Healthcare
Disaggregation of Revenue [Line Items]
Revenues	120,659	109,137	362,983	305,700
North America | Emerging Verticals
Disaggregation of Revenue [Line Items]
Revenues	100,483	86,981	303,230	249,653
North America | Americas
Disaggregation of Revenue [Line Items]
Revenues	669,582	654,717	2,002,942	1,991,871
North America | EMEA
Disaggregation of Revenue [Line Items]
Revenues	34,679	29,251	103,220	80,252
North America | APAC
Disaggregation of Revenue [Line Items]
Revenues	352	786	1,809	2,161
North America | CEE
Disaggregation of Revenue [Line Items]
Revenues	0	24	0	522
Europe
Disaggregation of Revenue [Line Items]
Revenues	462,914	465,813	1,371,618	1,442,402
Europe | Transferred over time
Disaggregation of Revenue [Line Items]
Revenues	461,923	465,286	1,368,155	1,440,682
Europe | Transferred at a point of time
Disaggregation of Revenue [Line Items]
Revenues	991	527	3,463	1,720
Europe | Time-and-material
Disaggregation of Revenue [Line Items]
Revenues	372,056	391,479	1,099,462	1,233,271
Europe | Fixed-price
Disaggregation of Revenue [Line Items]
Revenues	89,276	73,226	266,888	205,897
Europe | Licensing and other revenues
Disaggregation of Revenue [Line Items]
Revenues	1,582	1,108	5,268	3,234
Europe | Consumer Goods, Retail & Travel
Disaggregation of Revenue [Line Items]
Revenues	143,259	146,837	423,026	451,531
Europe | Financial Services
Disaggregation of Revenue [Line Items]
Revenues	125,296	114,122	364,740	358,091
Europe | Software & Hi-Tech
Disaggregation of Revenue [Line Items]
Revenues	46,928	37,545	127,727	115,137
Europe | Business Information & Media
Disaggregation of Revenue [Line Items]
Revenues	52,273	78,983	170,872	248,351
Europe | Life Sciences & Healthcare
Disaggregation of Revenue [Line Items]
Revenues	21,675	15,143	59,644	44,123
Europe | Emerging Verticals
Disaggregation of Revenue [Line Items]
Revenues	73,483	73,183	225,609	225,169
Europe | Americas
Disaggregation of Revenue [Line Items]
Revenues	27,585	22,693	78,344	73,797
Europe | EMEA
Disaggregation of Revenue [Line Items]
Revenues	410,188	416,986	1,222,215	1,289,007
Europe | APAC
Disaggregation of Revenue [Line Items]
Revenues	25,141	24,265	71,059	73,919
Europe | CEE
Disaggregation of Revenue [Line Items]
Revenues	0	1,869	0	5,679
Russia
Disaggregation of Revenue [Line Items]
Revenues	$ 0	1,545	$ 0	16,075
Russia | Transferred over time
Disaggregation of Revenue [Line Items]
Revenues		1,545		16,042
Russia | Transferred at a point of time
Disaggregation of Revenue [Line Items]
Revenues		0		33
Russia | Time-and-material
Disaggregation of Revenue [Line Items]
Revenues		1,355		11,168
Russia | Fixed-price
Disaggregation of Revenue [Line Items]
Revenues		190		4,873
Russia | Licensing and other revenues
Disaggregation of Revenue [Line Items]
Revenues		0		34
Russia | Consumer Goods, Retail & Travel
Disaggregation of Revenue [Line Items]
Revenues		342		3,770
Russia | Financial Services
Disaggregation of Revenue [Line Items]
Revenues		814		7,450
Russia | Software & Hi-Tech
Disaggregation of Revenue [Line Items]
Revenues		281		1,545
Russia | Business Information & Media
Disaggregation of Revenue [Line Items]
Revenues		15		196
Russia | Life Sciences & Healthcare
Disaggregation of Revenue [Line Items]
Revenues		(36)		120
Russia | Emerging Verticals
Disaggregation of Revenue [Line Items]
Revenues		129		2,994
Russia | Americas
Disaggregation of Revenue [Line Items]
Revenues		0		631
Russia | EMEA
Disaggregation of Revenue [Line Items]
Revenues		0		0
Russia | APAC
Disaggregation of Revenue [Line Items]
Revenues		0		0
Russia | CEE
Disaggregation of Revenue [Line Items]
Revenues		$ 1,545		$ 15,444

REVENUES (Schedule of Timing of

REVENUES (Schedule of Timing of Revenue Recognition) (Details) - Fixed-price $ in Thousands	Sep. 30, 2024 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Estimated revenues expected to be recognized in the future	$ 27,101
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Estimated revenues expected to be recognized in the future	$ 23,832
Revenue, remaining performance obligation, expected timing of satisfaction, period	3 months
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	$ 3,269
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	$ 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	$ 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	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Change in Contract with Customer, Liability [Abstract]
Revenue recognized	$ 2,900	$ 3,100	$ 20,300	$ 27,400
Trade receivables and contract assets, net
Change in Contract with Customer, Liability [Abstract]
Contract assets	56,748		56,748		$ 24,309
Accrued expenses and other current liabilities
Change in Contract with Customer, Liability [Abstract]
Contract liabilities	32,458		32,458		27,988
Other noncurrent liabilities
Change in Contract with Customer, Liability [Abstract]
Contract liabilities	$ 290		$ 290		$ 951

GOVERNMENT ASSISTANCE PROGRAM_2

GOVERNMENT ASSISTANCE PROGRAMS AND INCENTIVES (Details) $ in Millions	Sep. 30, 2024 USD ($)
Prepaid expenses and other current assets
Government Assistance [Line Items]
Government incentives receivable	$ 20.9
Restricted cash in Other noncurrent assets
Government Assistance [Line Items]
Government incentives receivable	31
2023 R&D
Government Assistance [Line Items]
Government incentives receivable	22.9
2024 R&D
Government Assistance [Line Items]
Government incentives receivable	$ 29.1

STOCKHOLDERS_ EQUITY (Schedule

STOCKHOLDERS’ EQUITY (Schedule of Components of Stock-Based Compensation Expenses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 42,124	$ 37,847	$ 122,599	$ 109,536
Cost of revenues (exclusive of depreciation and amortization)
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	19,576	18,142	58,870	49,569
Selling, general and administrative expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 22,548	$ 19,705	$ 63,729	$ 59,967

STOCKHOLDERS_ EQUITY (Schedul_2

STOCKHOLDERS’ EQUITY (Schedule of Stock Option Activity) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended
	Sep. 30, 2024
Number of Options
Beginning balance (in shares)	1,629
Options granted (in shares)	81
Options exercised (in shares)	(409)
Options forfeited (in shares)	(9)
Options expired (in shares)	(4)
Ending balance (in shares)	1,288
Options vested and exercisable number of options (in shares)	1,046
Options expected to vest number of options (in shares)	231
Weighted Average Exercise Price
Options outstanding at beginning of period (in usd per share)	$ 125.88
Options granted (in usd per share)	296.87
Options exercised (in usd per share)	43.83
Options forfeited (in usd per share)	276.69
Options expired (in usd per share)	373.38
Options outstanding at end of period (in usd per share)	160.72
Options vested and exercisable weighted average price (in dollars per share)	128.05
Options expected to vest weighted average price (in dollars per share)	$ 302.02
Aggregate Intrinsic Value
Options outstanding, beginning of period	$ 94,480
Options vested and exercisable, aggregate intrinsic value	94,480
Options expected to vest, aggregate intrinsic value	$ 0
Weighted Average Remaining Contractual Term (in years)
Options outstanding, weighted average remaining contractual term	3 years 10 months 24 days
Options vested and exercisable, weighted average remaining contractual term	2 years 9 months 18 days
Expected to vest, weighted average remaining contractual term	8 years 4 months 24 days

STOCKHOLDERS_ EQUITY (Stock Opt

STOCKHOLDERS’ EQUITY (Stock Option Additional Information) (Details) $ in Millions	9 Months Ended
	Sep. 30, 2024 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining unrecognized stock-based compensation cost	$ 21.6
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average remaining requisite service period	2 years 1 month 6 days

STOCKHOLDERS_ EQUITY (Schedul_3

STOCKHOLDERS’ EQUITY (Schedule of Fair Value of Restricted Stock and Restricted Stock Units Vested) (Details) - Restricted Stock Units shares in Thousands	9 Months Ended
	Sep. 30, 2024 $ / shares shares
Service Based Awards | Equity Classified Award | Equity-Settled Award
Number of Shares
Unvested awards outstanding at period start (in shares) | shares	1,074
Awards granted (in shares) | shares	535
Awards modified (in shares) | shares	1
Awards vested (in shares) | shares	(335)
Awards forfeited/cancelled (in shares) | shares	(77)
Unvested awards outstanding at period end (in shares) | shares	1,198
Weighted Average Grant Date Fair Value Per Share
Unvested awards outstanding at period start (in usd per share) | $ / shares	$ 292.45
Awards granted (in usd per share) | $ / shares	289.73
Awards modified (in usd per share) | $ / shares	366.27
Awards vested (in usd per share) | $ / shares	287.43
Awards forfeited/cancelled (in usd per share) | $ / shares	300.63
Unvested awards outstanding at period end (in usd per share) | $ / shares	$ 292.15
Service Based Awards | Liability Classified Award | Cash-Settled Award
Number of Shares
Unvested awards outstanding at period start (in shares) | shares	98
Awards granted (in shares) | shares	34
Awards modified (in shares) | shares	(1)
Awards vested (in shares) | shares	(39)
Awards forfeited/cancelled (in shares) | shares	(2)
Unvested awards outstanding at period end (in shares) | shares	90
Weighted Average Grant Date Fair Value Per Share
Unvested awards outstanding at period start (in usd per share) | $ / shares	$ 287.36
Awards granted (in usd per share) | $ / shares	298.35
Awards modified (in usd per share) | $ / shares	114.30
Awards vested (in usd per share) | $ / shares	272.94
Awards forfeited/cancelled (in usd per share) | $ / shares	295.91
Unvested awards outstanding at period end (in usd per share) | $ / shares	$ 298.91
Performance Based Awards | Equity Classified Award | Equity-Settled Award
Number of Shares
Unvested awards outstanding at period start (in shares) | shares	13
Awards granted (in shares) | shares	38
Awards vested (in shares) | shares	(3)
Awards forfeited/cancelled (in shares) | shares	(1)
Unvested awards outstanding at period end (in shares) | shares	47
Weighted Average Grant Date Fair Value Per Share
Unvested awards outstanding at period start (in usd per share) | $ / shares	$ 441.87
Awards granted (in usd per share) | $ / shares	327.31
Awards vested (in usd per share) | $ / shares	560.97
Awards forfeited/cancelled (in usd per share) | $ / shares	594.50
Unvested awards outstanding at period end (in usd per share) | $ / shares	$ 333.56

STOCKHOLDERS_ EQUITY (Restricte

STOCKHOLDERS’ EQUITY (Restricted Stock and Restricted Stock Units Additional Information) (Details) - USD ($) shares in Thousands		3 Months Ended			9 Months Ended
	Feb. 13, 2023	Sep. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Aug. 01, 2024	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized repurchase program, amount							$ 500,000,000
Share repurchase program term	24 months
Shares acquired during period (in shares)		245		318	1,801	543
Value of shares acquired		$ 50,000,000		$ 78,500,000	$ 385,000,000	$ 128,400,000
Stock repurchases, remaining balance		450,000,000			450,000,000
Emakina Group SA
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity granted					15,600,000
Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining unrecognized stock-based compensation cost		$ 800,000			$ 800,000
Weighted-average remaining requisite service period					1 month 6 days
Offering period					6 months
ESPP purchase price of common stock, percent of market price					85%
Shares issued in period (in shares)		85			85	77
Stock based compensation expense		$ 2,300,000		$ 3,100,000	$ 7,500,000	$ 9,700,000
Service Based Awards | Equity Classified Award | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining unrecognized stock-based compensation cost		248,900,000			$ 248,900,000
Weighted-average remaining requisite service period					2 years 7 months 6 days
Service Based Awards | Liability Classified Award | Restricted Stock Units | Cash-Settled Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining unrecognized stock-based compensation cost		14,800,000			$ 14,800,000
Weighted-average remaining requisite service period					2 years 4 months 24 days
Liability associated with RSUs		1,400,000			$ 1,400,000			$ 8,700,000
Performance Based Awards | Equity Classified Award | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining unrecognized stock-based compensation cost		$ 8,700,000			$ 8,700,000
Weighted-average remaining requisite service period					1 year 10 months 24 days
Performance Based Awards | Equity Classified Award | Restricted Stock Units | Equity-Settled Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period			3 years
Awards not considered granted (in shares)					32

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Tax Disclosure [Abstract]
Effective tax rate	28.10%	26.30%	21.40%	21.90%
Excess tax benefit	$ 0.3	$ (1.7)	$ (20.5)	$ (15.1)
Effective income tax rate, government assistance	2.30%		1%
Effective tax rate, non-deductibility	1.40%		0.60%
Tax effect of disposal of business		$ 3.6		$ 3.6

EARNINGS PER SHARE (Details)

EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Numerator for basic and diluted earnings per share:
Net income	$ 136,346	$ 98,645	$ 116,243	$ 97,204	$ 120,033	$ 102,292	$ 351,234	$ 319,529
Numerator for basic earnings per share	136,346			97,204			351,234	319,529
Numerator for diluted earnings per share	$ 136,346			$ 97,204			$ 351,234	$ 319,529
Denominator:
Weighted average common shares for basic earnings per share (in shares)	56,910			57,853			57,445	57,850
Net effect of dilutive stock options, restricted stock units, restricted stock awards and stock issuable under the ESPP (in shares)	515			1,095			721	1,293
Weighted average common shares for diluted earnings per share (in shares)	57,425			58,948			58,166	59,143
Net income per share:
Basic (in usd per share)	$ 2.40			$ 1.68			$ 6.11	$ 5.52
Diluted (in usd per share)	$ 2.37			$ 1.65			$ 6.04	$ 5.40
Anti-dilutive options not included in the calculation (in shares)	1,426			452			1,056	410

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Building Acquisition Commitments) (Details) - USD ($)			12 Months Ended
	Sep. 30, 2024	Mar. 31, 2023	Dec. 31, 2022	Mar. 04, 2022
Other Commitments [Line Items]
Term			4 years
Deferred consideration	$ 49,700,000
Deferred consideration in 2024	16,600,000
Deferred consideration in 2025	16,600,000
Deferred consideration in 2026	16,500,000
Cloud Services
Other Commitments [Line Items]
Contractual term		5 years
Total commitment amount	64,900,000	$ 75,000,000
Contractual commitment (in percentage)		20%
Humanitarian Commitment
Other Commitments [Line Items]
Commitment	$ 28,300,000
Ukraine | Humanitarian Commitment
Other Commitments [Line Items]
Commitment				$ 100,000,000

SEGMENT INFORMATION (Revenues f

SEGMENT INFORMATION (Revenues from External Customers and Operating Profit Before Unallocated Expenses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information [Line Items]
Revenues	$ 1,167,527	$ 1,152,136	$ 3,479,589	$ 3,533,283
Total segment operating profit	176,979	114,028	408,072	378,745
Operating Segments
Segment Reporting Information [Line Items]
Total segment operating profit	250,432	196,394	608,991	569,842
North America
Segment Reporting Information [Line Items]
Revenues	704,613	684,778	2,107,971	2,074,806
North America | Operating Segments
Segment Reporting Information [Line Items]
Total segment operating profit	155,570	132,438	399,072	386,929
Europe
Segment Reporting Information [Line Items]
Revenues	462,914	465,813	1,371,618	1,442,402
Europe | Operating Segments
Segment Reporting Information [Line Items]
Total segment operating profit	94,862	64,074	209,919	188,779
Russia
Segment Reporting Information [Line Items]
Revenues	0	1,545	0	16,075
Russia | Operating Segments
Segment Reporting Information [Line Items]
Total segment operating profit	$ 0	$ (118)	$ 0	$ (5,866)

SEGMENT INFORMATION (Reconcilia

SEGMENT INFORMATION (Reconciliation of Segment Operating Profit to Consolidated Income Before Provision for Income Taxes) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segment operating profit:	$ 176,979	$ 114,028	$ 408,072	$ 378,745
Stock-based compensation expense	(42,124)	(37,847)	(122,599)	(109,536)
Loss on sale of business	0	(25,922)	0	(25,922)
Interest and other income, net	13,347	13,931	40,425	37,162
Foreign exchange (loss)/gain	(710)	3,893	(1,416)	(6,725)
Income before provision for income taxes	189,616	131,852	447,081	409,182
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segment operating profit:	250,432	196,394	608,991	569,842
Unallocated Amounts
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Stock-based compensation expense	(42,124)	(37,847)	(122,599)	(109,536)
Amortization of intangibles assets	(5,707)	(5,688)	(17,477)	(16,708)
Other acquisition-related expenses	(7,098)	(867)	(8,777)	(2,448)
Loss on sale of business	0	(25,922)	0	(25,922)
Other unallocated expenses	$ (18,524)	$ (12,042)	$ (52,066)	$ (36,483)

SEGMENT INFORMATION (Physical L

SEGMENT INFORMATION (Physical Location and Values of Long-Lived Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	$ 207,502	$ 235,053
Ukraine
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	58,793	62,653
Belarus
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	46,627	49,875
United States
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	37,200	42,510
India
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	14,141	12,735
Poland
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	11,632	15,057
Belgium
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	4,980	3,032
Hungary
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	4,687	6,683
Other
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	$ 29,442	$ 42,508

SEGMENT INFORMATION (Revenues b

SEGMENT INFORMATION (Revenues by Customer Location) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 1,167,527	$ 1,152,136	$ 3,479,589	$ 3,533,283
United States
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	666,851	652,757	1,996,566	1,981,816
United Kingdom
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	126,010	140,718	389,733	448,526
Switzerland
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	104,268	91,504	304,022	270,862
Germany
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	53,604	44,843	153,627	132,606
Netherlands
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	45,816	59,020	142,577	176,528
Canada
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	22,012	21,808	65,745	76,125
Russia
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	0	1,545	0	13,290
Other locations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 148,966	$ 139,941	$ 427,319	$ 433,530

ACCUMULATED OTHER COMPREHENSI_3

ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	$ 3,397,959	$ 3,263,340	$ 3,471,470	$ 3,003,010
Other comprehensive income/(loss)	28,906	(19,545)	(1,477)	3,691
Balance, end of period	3,554,629	3,300,018	3,554,629	3,300,018
Accumulated other comprehensive loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(69,423)	(72,085)	(39,040)	(95,321)
Balance, end of period	(40,517)	(91,630)	(40,517)	(91,630)
Foreign currency translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(67,962)	(81,158)	(43,601)	(101,780)
Unrealized gain/ (loss) in fair value	39,596	(33,292)	8,305	(9,231)
Net loss reclassified into Loss on sale of business	0	23,931	0	23,931
Income tax (expense)/benefit	(8,822)	3,560	(1,892)	121
Other comprehensive income/(loss)	30,774	(5,801)	6,413	14,821
Balance, end of period	(37,188)	(86,959)	(37,188)	(86,959)
Cash flow hedging instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	1,479	10,920	7,819	8,306
Unrealized gain/ (loss) in fair value	1,592	(8,805)	(1,797)	7,028
Income tax (expense)/benefit	599	4,036	2,503	3,268
Other comprehensive income/(loss)	(1,994)	(13,744)	(8,334)	(11,130)
Net gain reclassified into Cost of revenues (exclusive of depreciation and amortization)	(4,185)	(8,764)	(9,040)	(21,248)
Net gain reclassified into Foreign exchange loss	0	(211)	0	(178)
Balance, end of period	(515)	(2,824)	(515)	(2,824)
Defined benefit plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(2,940)	(1,847)	(3,258)	(1,847)
Net loss reclassified into Loss on sale of business	126	0	439	0
Income tax (expense)/benefit	0	0	5	0
Other comprehensive income/(loss)	126	0	444	0
Balance, end of period	$ (2,814)	$ (1,847)	$ (2,814)	$ (1,847)

SUBSEQUENT EVENTS (Details)

SUBSEQUENT EVENTS (Details) - Subsequent Event $ in Millions	Nov. 01, 2024 USD ($) professional	Oct. 07, 2024 USD ($)
Neoris N.V
Subsequent Event [Line Items]
Payments to acquire businesses	$ 618.1
Percentage of shares acquired	99.70%
Number of professionals | professional	4,800
First Derivative Ltd
Subsequent Event [Line Items]
Cash consideration		$ 307.6