INCOME TAXES (Unrecognized Tax Benefits) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits at beginning of year	$ 3,159,000	$ 5,121,000	$ 1,738,000
Additions to current year tax positions	0	0	1,457,000
Reductions to prior year tax positions		(625,000)
Additions to prior year tax positions	3,354,000		2,031,000
Expirations	(209,000)	(1,115,000)	(231,000)
Foreign currency translation	110,000	(222,000)	126,000
Unrecognized tax benefits at end of year	$ 6,414,000	$ 3,159,000	$ 5,121,000