GOODWILL AND INTANGIBLE ASSETS (Intangible Assets Amortization Expense) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
2019		$ 4,878
2020		3,653
2021		2,787
2022		1,709
2023		1,467
Thereafter		707
Total Finite Lived Intangible Assets, Net	[1]	15,201
Leases, Acquired-in-Place [Member]
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Total Finite Lived Intangible Assets, Net		0	$ 0
Developed technology
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Total Finite Lived Intangible Assets, Net		10,806	14,059
Customer relationships [Member]
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Total Finite Lived Intangible Assets, Net		3,510	5,409
In Process Research and Development [Member]
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Total Finite Lived Intangible Assets, Net		4,690	$ 4,690
Finite-lived intangible assets		$ 4,690

[1] The total above excludes $4.7 million of in-process R&D which will be amortized upon completion of development over the estimated useful life of the technology.