COMMITMENTS AND CONTINGENCIES - NARRATIVE (Details) $ in Thousands, ₩ in Millions	1 Months Ended
	Jan. 31, 2016 complaint	Jun. 30, 2016 USD ($)	Jun. 30, 2016 KRW (₩)
Securities Class Action
Loss Contingencies [Line Items]
Number of complaints	2
Korean Business Segment | Other Noncurrent Assets
Loss Contingencies [Line Items]
Distributor claims reserve		$ 192	₩ 223