GOODWILL (Goodwill Roll Forward) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($)
Total
Beginning balance	$ 529,072
2022 Acquisitions purchase accounting adjustments	87
Effect of net foreign currency exchange rate changes	(1,519)
Ending balance	548,177
North America
Total
Beginning balance	216,960
2022 Acquisitions purchase accounting adjustments	0
2023 Acquisition	20,537
Effect of net foreign currency exchange rate changes	(24)
Ending balance	237,473
Europe
Total
Beginning balance	312,112
2022 Acquisitions purchase accounting adjustments	87
2023 Acquisition	0
Effect of net foreign currency exchange rate changes	(1,495)
Ending balance	310,704
Russia
Total
2023 Acquisition	$ 20,537