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IMPAIRMENT LOSSES AND RESTRUCTURING CHARGES (Tables)
 3 Months Ended
Mar. 31, 2018
Restructuring and Related Activities [Abstract]  
Restructuring and Related Costs
The table below summarizes the balance of accrued restructuring costs, which is included in other accrued liabilities in our consolidated balance sheets, and the changes during the three months ended March 31, 2018: 
Facility-Related and Employee-Related Costs
 
 
Domestic
 
Nearshore
 
Offshore
 
Total
Balance as of January 1, 2018
 
$
9

 
$
—

 
$
—

 
$
9

Expense (Reversal)
 
$
859

 
$
31

 
$
177

 
$
1,067

Payments
 
$
(151
)
 
$
(31
)
 
$
(11
)
 
$
(193
)
Balance as of March 31, 2018
 
$
717

 
$
—

 
$
166

 
$
883