IMPAIRMENT LOSSES AND RESTRUCTURING CHARGES Table (Details) - Facility Closing $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($)
Restructuring Cost and Reserve [Line Items]
Balance as of January 1, 2018	$ 9
Expense (Reversal)	1,067
Payments	(193)
Balance as of March 31, 2018	883
Domestic
Restructuring Cost and Reserve [Line Items]
Balance as of January 1, 2018	9
Expense (Reversal)	859
Payments	(151)
Balance as of March 31, 2018	717
Nearshore
Restructuring Cost and Reserve [Line Items]
Balance as of January 1, 2018	0
Expense (Reversal)	31
Payments	(31)
Balance as of March 31, 2018	0
Offshore
Restructuring Cost and Reserve [Line Items]
Balance as of January 1, 2018	0
Expense (Reversal)	177
Payments	(11)
Balance as of March 31, 2018	$ 166