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RESTRUCTURING CHARGES AND IMPAIRMENT LOSSES (LIABILITY ROLLFORWARD TABLE) (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2021
USD ($)
Restructuring Cost and Reserve [Line Items]  
Beginning balance, restructuring reserve $ 699
Expense 2,211
Payments (1,264)
Changes due to foreign currency 1
Change in estimates (84)
Ending balance, restructuring reserve 1,563
Reduction in Force [Member]  
Restructuring Cost and Reserve [Line Items]  
Beginning balance, restructuring reserve 156
Expense 884
Payments (80)
Change in estimates (84)
Ending balance, restructuring reserve 876
Closure of Delivery Centers [Member]  
Restructuring Cost and Reserve [Line Items]  
Beginning balance, restructuring reserve 543
Expense 1,327
Payments (1,184)
Changes due to foreign currency 1
Ending balance, restructuring reserve $ 687