PROPERTY, PLANT AND EQUIPMENT Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2016		Jun. 30, 2015	Jun. 30, 2016		Jun. 30, 2015
Movement in Property, Plant and Equipment [Roll Forward]
Opening balance				$ 108,522	[1]	$ 114,335
Additions				10,043		14,313
Disposals				(49)		(252)
Depreciation	$ (7,627)		$ (6,936)	(14,912)		(13,937)
Foreign currency movements				2,040		(8,117)
Ending balance	$ 105,644	[1]	$ 106,342	$ 105,644	[1]	$ 106,342

[1] 1) Reflects property, plant and equipment.