REVENUES (Notes)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

REVENUES

REVENUES

Disaggregation of Revenues

The following tables show the disaggregation of the Company’s revenues by major customer location, including a reconciliation of the disaggregated revenues with the Company’s reportable segments (Note 15 “Segment Information”) for the years ended December 31, 2019 and 2018:

	Year Ended December 31, 2019
	Reportable Segments
	North America		Europe		Russia		Consolidated Revenues
Customer Locations
North America	$	1,344,040	$	45,859	$	116	$	1,390,015
Europe	27,042		719,548		276		746,866
CIS	8,583		143		91,745		100,471
APAC	1,279		55,167		—		56,446
Revenues	$	1,380,944	$	820,717	$	92,137	$	2,293,798

	Year Ended December 31, 2018
	Reportable Segments
	North America		Europe		Russia		Consolidated Revenues
Customer Locations
North America	$	1,046,232	$	52,860	$	75	$	1,099,167
Europe	16,679		595,741		52		612,472
CIS	8,437		336		72,930		81,703
APAC	5,631		43,848		91		49,570
Revenues	$	1,076,979	$	692,785	$	73,148	$	1,842,912

The following tables show the disaggregation of the Company’s revenues by industry vertical, including a reconciliation of the disaggregated revenues with the Company’s reportable segments (Note 15 “Segment Information”) for the year ended December 31, 2019 and 2018:

	Year Ended December 31, 2019
	Reportable Segments
	North America		Europe		Russia		Consolidated Revenues
Industry Verticals
Financial Services	$	184,469	$	244,284	$	72,119	$	500,872
Travel & Consumer	198,264		229,523		11,571		439,358
Software & Hi-Tech	354,023		77,377		1,998		433,398
Business Information & Media	262,448		157,844		631		420,923
Life Sciences & Healthcare	224,925		23,444		83		248,452
Emerging Verticals	156,815		88,245		5,735		250,795
Revenues	$	1,380,944	$	820,717	$	92,137	$	2,293,798

	Year Ended December 31, 2018
	Reportable Segments
	North America		Europe		Russia		Consolidated Revenues
Industry Verticals
Financial Services	$	112,444	$	252,196	$	59,337	$	423,977
Travel and Consumer	177,910		208,266		7,467		393,643
Software & Hi-Tech	269,067		79,121		2,627		350,815
Business Information & Media	251,081		72,898		54		324,033
Life Sciences & Healthcare	151,418		20,272		13		171,703
Emerging Verticals	115,059		60,032		3,650		178,741
Revenues	$	1,076,979	$	692,785	$	73,148	$	1,842,912

The following tables show the disaggregation of the Company’s revenues by contract type, including a reconciliation of the disaggregated revenues with the Company’s reportable segments (Note 15 “Segment Information”) for the year ended December 31, 2019 and 2018:

	Year Ended December 31, 2019
	Reportable Segments
	North America		Europe		Russia		Consolidated Revenues
Contract Types
Time-and-material	$	1,247,979	$	688,605	$	54,069	$	1,990,653
Fixed-price	127,926		128,977		37,747		294,650
Licensing	3,626		1,230		225		5,081
Other revenues	1,413		1,905		96		3,414
Revenues	$	1,380,944	$	820,717	$	92,137	$	2,293,798

	Year Ended December 31, 2018
	Reportable Segments
	North America		Europe		Russia		Consolidated Revenues
Contract Types
Time-and-material	$	983,436	$	628,707	$	40,754	$	1,652,897
Fixed-price	89,831		62,078		32,342		184,251
Licensing	2,748		1,332		17		4,097
Other revenues	964		668		35		1,667
Revenues	$	1,076,979	$	692,785	$	73,148	$	1,842,912

Timing of Revenue Recognition

The following tables show the timing of revenue recognition:

	Year Ended December 31, 2019
	Reportable Segments
	North America		Europe		Russia		Consolidated Revenues
Timing of Revenue Recognition
Transferred over time	$	1,379,256	$	819,913	$	92,076	$	2,291,245
Transferred at a point of time	1,688		804		61		2,553
Revenues	$	1,380,944	$	820,717	$	92,137	$	2,293,798

	Year Ended December 31, 2018
	Reportable Segments
	North America		Europe		Russia		Consolidated Revenues
Timing of Revenue Recognition
Transferred over time	$	1,076,084	$	692,023	$	73,135	$	1,841,242
Transferred at a point of time	895		762		13		1,670
Revenues	$	1,076,979	$	692,785	$	73,148	$	1,842,912

During the years ended December 31, 2019 and 2018 the Company recognized $7,806 and $5,736, respectively, of revenues from performance obligations satisfied in previous periods.

The following table includes the estimated revenues expected to be recognized in the future related to performance obligations that are partially or fully unsatisfied as of December 31, 2019. The Company applies a practical expedient and does not disclose the value of unsatisfied performance obligations for contracts that (i) have an original expected duration of one year or less and (ii) contracts for which it recognizes revenues at the amount to which it has the right to invoice for services provided:

	Less than 1 year		1 Year		2 Years		3 Years		Total
Contract Type
Fixed-price	$	17,892	$	992	$	64	$	—	$	18,948

The Company applies a practical expedient and does not disclose the amount of the transaction price allocated to the remaining performance obligations nor provide an explanation of when the Company expects to recognize that amount as revenue for certain variable consideration.

Contract Balances

The following table provides information on the classification of contract assets and liabilities in the consolidated balance sheets:

	As of    December 31,   2019		As of December 31, 2018
Contract assets included in Trade receivables and contract assets	$	14,320	$	13,522
Contract liabilities included in Accrued expenses and other current liabilities	$	9,132	$	4,558
Contract liabilities included in Other noncurrent liabilities	$	5	$	224

Contract assets have increased from December 31, 2018 primarily due to new contracts entered into in 2019 where the Company’s right to bill is contingent upon achievement of contractual milestones.

Contract liabilities comprise amounts collected from the Company’s customers for revenues not yet earned. Such amounts are anticipated to be recorded as revenues when services are performed in subsequent periods. Contract liabilities have increased from December 31, 2018 due to an increase in advance billings largely attributable to the businesses acquired during 2019. During the year ended December 31, 2019, the Company recognized $3,850 of revenues that were included in Accrued expenses and other current liabilities at December 31, 2018. During the year ended December 31, 2018, the Company recognized $3,810 of revenues that were included in Accrued expenses and other current liabilities at January 1, 2018.