GOODWILL AND INTANGIBLE ASSETS, NET (Schedule of Goodwill by Reportable Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Roll Forward]
Balance beginning of period	$ 529,072	$ 530,723
Goodwill, Impairment Loss		(686)
Effect of net foreign currency exchange rate changes	8,823	(15,493)
Balance end of period	562,459	529,072
North America
Goodwill [Roll Forward]
Balance beginning of period	216,960	217,594
Goodwill, Impairment Loss		0
Effect of net foreign currency exchange rate changes	423	(570)
Balance end of period	241,860	216,960
Europe
Goodwill [Roll Forward]
Balance beginning of period	312,112	312,413
Goodwill, Impairment Loss		0
Effect of net foreign currency exchange rate changes	8,400	(14,893)
Balance end of period	320,599	312,112
Russia
Goodwill [Roll Forward]
Balance beginning of period	0	716
Goodwill, Impairment Loss		(686)
Effect of net foreign currency exchange rate changes	0	(30)
Balance end of period	0	0
Emakina
Goodwill [Roll Forward]
Purchase accounting adjustments		2,602
Emakina | North America
Goodwill [Roll Forward]
Purchase accounting adjustments		0
Emakina | Europe
Goodwill [Roll Forward]
Purchase accounting adjustments		2,602
Emakina | Russia
Goodwill [Roll Forward]
Purchase accounting adjustments		0
PolSource
Goodwill [Roll Forward]
Purchase accounting adjustments		(74)
PolSource | North America
Goodwill [Roll Forward]
Purchase accounting adjustments		(44)
PolSource | Europe
Goodwill [Roll Forward]
Purchase accounting adjustments		(30)
PolSource | Russia
Goodwill [Roll Forward]
Purchase accounting adjustments		0
CORE
Goodwill [Roll Forward]
Purchase accounting adjustments		959
CORE | North America
Goodwill [Roll Forward]
Purchase accounting adjustments		0
CORE | Europe
Goodwill [Roll Forward]
Purchase accounting adjustments		959
CORE | Russia
Goodwill [Roll Forward]
Purchase accounting adjustments		0
Other 2021 Acquisitions purchase accounting adjustments
Goodwill [Roll Forward]
Purchase accounting adjustments		917
Other 2021 Acquisitions purchase accounting adjustments | North America
Goodwill [Roll Forward]
Purchase accounting adjustments		(20)
Other 2021 Acquisitions purchase accounting adjustments | Europe
Goodwill [Roll Forward]
Purchase accounting adjustments		937
Other 2021 Acquisitions purchase accounting adjustments | Russia
Goodwill [Roll Forward]
Purchase accounting adjustments		0
2022 Acquisitions purchase accounting adjustments
Goodwill [Roll Forward]
Acquisitions		10,124
Purchase accounting adjustments	87
2022 Acquisitions purchase accounting adjustments | North America
Goodwill [Roll Forward]
Acquisitions		0
Purchase accounting adjustments	0
2022 Acquisitions purchase accounting adjustments | Europe
Goodwill [Roll Forward]
Acquisitions		10,124
Purchase accounting adjustments	87
2022 Acquisitions purchase accounting adjustments | Russia
Goodwill [Roll Forward]
Acquisitions		$ 0
Purchase accounting adjustments	0
2023 Acquisitions
Goodwill [Roll Forward]
Acquisitions	24,477
2023 Acquisitions | North America
Goodwill [Roll Forward]
Acquisitions	24,477
2023 Acquisitions | Europe
Goodwill [Roll Forward]
Acquisitions	0
2023 Acquisitions | Russia
Goodwill [Roll Forward]
Acquisitions	$ 0