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SEGMENT INFORMATION, Revenue by Segment (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) Segment Market	Mar. 31, 2017 USD ($)
SEGMENT INFORMATION [Abstract]
Number of markets | Market	50
Number of segments | Segment	7
Revenue by Segment [Abstract]
Revenue	$ 616,219	$ 499,099
Operating Segment [Member]
Revenue by Segment [Abstract]
Revenue	616,219	499,099
Operating Segment [Member] | Mainland China [Member]
Revenue by Segment [Abstract]
Revenue	197,531	150,004
Operating Segment [Member] | Americas/Pacific [Member]
Revenue by Segment [Abstract]
Revenue	92,289	71,425
Operating Segment [Member] | South Korea [Member]
Revenue by Segment [Abstract]
Revenue	88,930	82,471
Operating Segment [Member] | Southeast Asia [Member]
Revenue by Segment [Abstract]
Revenue	70,860	63,025
Operating Segment [Member] | Japan [Member]
Revenue by Segment [Abstract]
Revenue	63,224	61,156
Operating Segment [Member] | EMEA [Member]
Revenue by Segment [Abstract]
Revenue	44,981	34,064
Operating Segment [Member] | Hong Kong/Taiwan [Member]
Revenue by Segment [Abstract]
Revenue	40,992	35,948
Operating Segment [Member] | Other [Member]
Revenue by Segment [Abstract]
Revenue	$ 17,412	$ 1,006

X

- Definition

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

+ References

No definition available.

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- Definition

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.

+ References

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 32
-Paragraph 2A
-URI http://asc.fasb.org/extlink&oid=82859839&loc=SL82860478-203043

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130543-203045

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130539-203045

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045

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