SEGMENT INFORMATION (Tables)

12 Months Ended

Dec. 31, 2018

SEGMENT INFORMATION [ABSTRACT]

Schedule of Segment Selected Financial Data

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

Year Ended December 31, 2018

							Depreciation		Income
	Gross		Intersegment		Net		&		(Loss) from
	Revenue		Sales		Revenue		Amortization		Operations
Customer Management Services	$	1,129,048	$	—	$	1,129,048	$	57,864	$	49,161
Customer Growth Services		141,324		—		141,324		2,501		9,839
Customer Technology Services		170,559		(345)		170,214		7,002		26,634
Customer Strategy Services		68,585		—		68,585		1,812		6,420
Total	$	1,509,516	$	(345)	$	1,509,171	$	69,179	$	92,054

Year Ended December 31, 2017

							Depreciation		Income
	Gross		Intersegment		Net		&		(Loss) 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		Income
	Gross		Intersegment		Net		&		(Loss) 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

	For the Year Ended December 31,
	2018		2017		2016
Capital Expenditures
Customer Management Services	$	38,617	$	48,069	$	40,321
Customer Growth Services		—		871		4,185
Customer Technology Services		3,957		2,308		5,217
Customer Strategy Services		876		710		1,109
Total	$	43,450	$	51,958	$	50,832

	December 31,
	2018		2017		2016
Total Assets
Customer Management Services	$	788,550	$	869,594	$	585,679
Customer Growth Services		42,981		41,036		71,540
Customer Technology Services		162,222		100,351		115,537
Customer Strategy Services		60,755		67,755		73,548
Total	$	1,054,508	$	1,078,736	$	846,304
	December 31,
	2018		2017		2016
Goodwill
Customer Management Services	$	114,036	$	119,497	$	42,589
Customer Growth Services		24,439		24,439		24,439
Customer Technology Services		41,979		40,839		41,500
Customer Strategy Services		24,179		24,952		24,153
Total	$	204,633	$	209,727	$	132,681

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,
	2018		2017		2016
Revenue
United States	$	862,026	$	820,597	$	693,023
Philippines		351,829		353,122		351,853
Latin America		109,104		130,082		122,347
Europe / Middle East / Africa		67,163		62,597		65,866
Canada		61,071		74,252		13,950
Asia Pacific / India		57,978		36,715		28,219
Total	$	1,509,171	$	1,477,365	$	1,275,258
Property, plant and equipment, gross
United States	$	508,202	$	490,110	$	441,222
Philippines		130,176		137,683		133,214
Latin America		44,065		51,451		50,605
Europe / Middle East / Africa		10,499		10,280		8,805
Canada		15,193		15,912		19,988
Asia Pacific / India		19,874		24,592		23,484
Total	$	728,009	$	730,028	$	677,318
Other long-term assets
United States	$	56,459	$	46,029	$	36,442
Philippines		5,188		7,753		8,194
Latin America		1,329		1,475		1,161
Europe / Middle East / Africa		544		(750)		1,099
Canada		241		324		514
Asia Pacific / India		1,680		4,326		110
Total	$	65,441	$	59,157	$	47,520