Segment Reporting and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting and Geographic Information

Schedule of revenue by major class of product

	Year ended December 31,
	2014		2013		2012
	(in thousands)
MOCVD	$	279,751	$	219,914	$	314,152
MBE	28,033		29,419		49,029
Surface Processing	7,906		—		—
Ion Beam and other	77,183		82,416		152,839
Total Revenue	$	392,873	$	331,749	$	516,020

Schedule of net sales which are attributed to the geographic location in which the customer facility is located and long-lived tangible assets

	Net Sales to Unaffiliated Customers						Long-Lived Tangible Assets
	2014		2013		2012		2014		2013		2012
	(in thousands)
United States	$	44,060	$	57,609	$	83,317	$	63,349	$	66,002	$	74,497
Asia Pacific(1)	311,182		252,199		390,995		15,325		23,042		23,769
EMEA(2) and other	37,631		21,941		41,708		78		95		36
Total	$	392,873	$	331,749	$	516,020	$	78,752	$	89,139	$	98,302

(1) Net sales to customers in China were 40%, 45%, and 42% of total net sales for the years ended December 31, 2014, 2013, 2012, respectively.

(2) Consists of Europe, the Middle East, and Africa