REVENUES (Contract Assets and Liabilities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Change in Contract with Customer, Liability [Abstract]
Revenues from performance obligations satisfied in previous periods	$ 7,806	$ 5,736
Trade Receivables and Contract Assets
Change in Contract with Customer, Liability [Abstract]
Contract assets	14,320	13,522
Accrued Expenses and Other Current Liabilities
Change in Contract with Customer, Liability [Abstract]
Revenues recognized	3,850	3,810
Contract liabilities	9,132	4,558
Other Noncurrent Liabilities
Change in Contract with Customer, Liability [Abstract]
Contract liabilities	$ 5	$ 224