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SEGMENT INFORMATION, Revenue by Segment (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) Segment Market	Jun. 30, 2017 USD ($)
SEGMENT INFORMATION [Abstract]
Number of markets | Market			50
Number of segments | Segment			7
Revenue by Segment [Abstract]
Revenue	$ 704,190	$ 550,101	$ 1,320,409	$ 1,049,200
Operating Segment [Member]
Revenue by Segment [Abstract]
Revenue	704,190	550,101	1,320,409	1,049,200
Operating Segment [Member] | Mainland China [Member]
Revenue by Segment [Abstract]
Revenue	245,256	172,098	442,787	322,102
Operating Segment [Member] | Americas/Pacific [Member]
Revenue by Segment [Abstract]
Revenue	103,990	82,997	196,279	154,422
Operating Segment [Member] | South Korea [Member]
Revenue by Segment [Abstract]
Revenue	91,624	86,917	180,554	169,388
Operating Segment [Member] | Southeast Asia [Member]
Revenue by Segment [Abstract]
Revenue	79,223	60,545	150,083	123,570
Operating Segment [Member] | Japan [Member]
Revenue by Segment [Abstract]
Revenue	64,113	64,796	127,337	125,952
Operating Segment [Member] | Hong Kong/Taiwan [Member]
Revenue by Segment [Abstract]
Revenue	52,206	43,071	93,198	79,019
Operating Segment [Member] | EMEA [Member]
Revenue by Segment [Abstract]
Revenue	44,010	38,188	88,991	72,252
Operating Segment [Member] | Other [Member]
Revenue by Segment [Abstract]
Revenue	$ 23,768	$ 1,489	$ 41,180	$ 2,495

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- Definition

The number of markets in which the entity sells and distributes its products through a global network of customers and sales leaders.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

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-Name Accounting Standards Codification
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