SEGMENT INFORMATION (Physical Locations and Values of Long-Lived Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	$ 235,053	$ 273,348	$ 236,214
Ukraine
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	62,653	70,183	78,289
United States
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	42,510	68,804	14,843
Belarus
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	49,875	57,311	75,422
Poland
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	15,057	14,685	8,240
Hungary
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	6,683	8,552	5,339
India
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	12,735	8,506	9,459
Russia
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	0	0	16,611
Other
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	$ 45,540	$ 45,307	$ 28,011