SEGMENT DATA Capital Expenditure (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information [Line Items]
Capital expenditures	$ 7,707	$ 6,076
BULGARIA [Member]
Segment Reporting Information [Line Items]
Capital expenditures	133	182
CROATIA [Member]
Segment Reporting Information [Line Items]
Capital expenditures	555	277
CZECH REPUBLIC [Member]
Segment Reporting Information [Line Items]
Capital expenditures	3,198	1,551
ROMANIA [Member]
Segment Reporting Information [Line Items]
Capital expenditures	1,709	1,729
SLOVAK REPUBLIC [Member]
Segment Reporting Information [Line Items]
Capital expenditures	465	533
SLOVENIA [Member]
Segment Reporting Information [Line Items]
Capital expenditures	1,071	1,260
Operating Segments [Member]
Segment Reporting Information [Line Items]
Capital expenditures	7,131	5,532
Corporate [Member]
Segment Reporting Information [Line Items]
Capital expenditures	$ 576	$ 544