INCOME TAXES Summary of Income Tax Contingency (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($)
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at January 1, 2012	$ 2,039
Additions based on tax positions related to the current year	79
Additions for tax positions of prior years	2
Lapse of statute of limitations	(150)
Currency Translation	86
Balance at December 31, 2012	$ 2,056