SEGMENT INFORMATION (TABLES)

12 Months Ended

Dec. 31, 2017

SEGMENT INFORMATION [ABSTRACT]

Schedule of Segment Selected Financial Data

The following tables present certain financial data by segment (in thousands):

Year Ended December 31, 2017

							Depreciation
	Gross		Intersegment		Net		&		Income from
	Revenue		Sales		Revenue		Amortization		Operations
Customer Management Services	$	1,141,779	$	(19)	$	1,141,760	$	52,193	$	78,206
Customer Growth Services		128,698		—		128,698		2,959		7,803
Customer Technology Services		138,918		(337)		138,581		7,092		12,047
Customer Strategy Services		68,326		—		68,326		2,263		2,433
Total	$	1,477,721	$	(356)	$	1,477,365	$	64,507	$	100,489

Year Ended December 31, 2016

							Depreciation
	Gross		Intersegment		Net		&		Income from
	Revenue		Sales		Revenue		Amortization		Operations
Customer Management Services	$	924,654	$	(329)	$	924,325	$	48,770	$	50,541
Customer Growth Services		141,005		—		141,005		5,905		6,969
Customer Technology Services		141,865		(611)		141,254		10,645		933
Customer Strategy Services		68,674		—		68,674		3,355		(5,691)
Total	$	1,276,198	$	(940)	$	1,275,258	$	68,675	$	52,752

Year Ended December 31, 2015

							Depreciation
	Gross		Intersegment		Net		&		Income from
	Revenue		Sales		Revenue		Amortization		Operations
Customer Management Services	$	913,272	$	—	$	913,272	$	44,633	$	58,018
Customer Growth Services		129,021		—		129,021		6,065		3,077
Customer Technology Services		157,838		(232)		157,606		9,775		13,339
Customer Strategy Services		86,856		—		86,856		3,335		15,746
Total	$	1,286,987	$	(232)	$	1,286,755	$	63,808	$	90,180

	For the Year Ended December 31,
	2017		2016		2015
Capital Expenditures
Customer Management Services	$	48,069	$	40,321	$	56,570
Customer Growth Services		871		4,185		4,681
Customer Technology Services		2,308		5,217		4,216
Customer Strategy Services		710		1,109		1,128
Total	$	51,958	$	50,832	$	66,595

	December 31,
	2017		2016		2015
Total Assets
Customer Management Services	$	869,594	$	585,679	$	525,470
Customer Growth Services		41,036		71,540		75,291
Customer Technology Services		100,351		115,537		146,480
Customer Strategy Services		67,755		73,548		96,086
Total	$	1,078,736	$	846,304	$	843,327
	December 31,
	2017		2016		2015
Goodwill
Customer Management Services	$	119,497	$	42,589	$	23,218
Customer Growth Services		24,439		24,439		24,439
Customer Technology Services		40,839		41,500		41,500
Customer Strategy Services		21,919		21,120		25,026
Total	$	206,694	$	129,648	$	114,183

Schedule of Revenue by Geographic Area

The following tables present certain financial data based upon the geographic location where the services are provided (in thousands):

	As of and for the
	Year Ended December 31,
	2017		2016		2015
Revenue
United States	$	820,597	$	693,023	$	679,959
Philippines		353,122		351,853		343,013
Latin America		130,082		122,347		147,267
Europe / Middle East / Africa		62,597		65,866		78,182
Asia Pacific / India		36,715		28,219		32,554
Canada		74,252		13,950		5,780
Total	$	1,477,365	$	1,275,258	$	1,286,755
Property, plant and equipment, gross
United States	$	490,110	$	441,222	$	415,918
Philippines		137,683		133,214		140,712
Latin America		51,451		50,605		49,464
Europe / Middle East / Africa		10,231		8,805		14,567
Asia Pacific / India		24,592		23,484		23,181
Canada		15,912		19,988		16,239
Total	$	729,979	$	677,318	$	660,081
Other long-term assets
United States	$	46,029	$	36,442	$	34,007
Philippines		7,753		8,194		5,220
Latin America		1,475		1,161		1,161
Europe / Middle East / Africa		1,950		1,099		811
Asia Pacific / India		4,326		110		165
Canada		324		514		1,122
Total	$	61,857	$	47,520	$	42,486