INCOME TAXES (Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Contingency [Line Items]
Significant new tax position resulted in increase in prior year	$ 500	$ 0	$ 0
Significant new tax position resulted in increase in current year	800	0	$ 0
Tax positions for which significant change in unrecognized tax benefits is reasonably possible	0
Income Taxes Payable, Noncurrent
Income Tax Contingency [Line Items]
Unrecognized tax benefit	$ 3,300	$ 2,900