RESTRUCTURING CHARGES AND IMPAIRMENT LOSSES (LIABILITY ROLLFORWARD TABLE) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Beginning balance, restructuring reserve	$ 699	$ 325
Expense	3,891	3,264
Payments	(3,182)	(2,796)
Changes due to foreign currency	(5)	(16)
Change in estimates	(84)	78
Ending balance, restructuring reserve	1,319	699
Reduction in Force [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance, restructuring reserve	156	251
Expense	1,252	1,064
Payments	(510)	(1,067)
Changes due to foreign currency	(6)	(14)
Change in estimates	(84)	78
Ending balance, restructuring reserve	808	156
Closure of Delivery Centers [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance, restructuring reserve	543	74
Expense	2,639	2,200
Payments	(2,672)	(1,729)
Changes due to foreign currency	1	(2)
Ending balance, restructuring reserve	$ 511	$ 543