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Segment Reporting and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting and Geographic Information

Schedule of sales by end-market

		For the year ended December 31,
		2017			2016			2015
		(in thousands)
Sales by end-market
LED Lighting, Display & Compound Semiconductor		$	253,785		$	144,675		$	291,133
Advanced Packaging, MEMS & RF Filters		69,353			68,304			61,935
Scientific & Industrial		120,788			111,198			118,132
Front-End Semiconductor		40,830			8,274			5,838
Total		$	484,756		$	332,451		$	477,038

Schedule of sales and long-lived tangible assets by geographic region

		Net Sales to Unaffiliated Customers									Long-lived Tangible Assets
		2017			2016			2015			2017			2016			2015
		(in thousands)
United States		$	94,936		$	85,637		$	86,627		$	81,046		$	60,012		$	64,951
China		107,844			85,834			242,442			64			219			422
EMEA(1)		76,636			83,410			64,019			231			93			96
Rest of World		205,340			77,570			83,950			3,717			322			14,121
Total		$	484,756		$	332,451		$	477,038		$	85,058		$	60,646		$	79,590

(1) EMEA consists of Europe, the Middle East, and Africa

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- Definition

Tabular disclosure of entity-wide revenues from external customers for each product or service or each group of similar products or services if the information is not provided as part of the reportable operating segment information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9031-108599

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- Definition

Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599

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