SEGMENT INFORMATION (Physical Location and Values of Long-Lived Assets) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	$ 211,119	$ 236,214
Ukraine
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	70,901	78,289
Belarus
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	64,401	75,422
United States
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	17,186	14,843
India
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	9,994	9,459
Poland
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	7,865	8,240
Hungary
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	4,819	5,339
Russia
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	0	16,611
Other
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	$ 35,953	$ 28,011