Segment Reporting

12 Months Ended

Jan. 31, 2017

Segment Reporting [Abstract]

Segment Reporting

Segment Reporting

Our Chief Operating Decision Maker (CODM), consisting of the Chief Executive Officer and the President, reviews our consolidated results within one operating segment. In making operating decisions, our CODM primarily considers consolidated financial information accompanied by disaggregated revenue information by geographic region.

We eliminate all intercompany revenues in computing revenues by geographic regions. Revenues related to operations in the geographic areas were:

Fiscal year ended January 31,	2017		2016		2015
Revenues:
United States	$	477,520	$	488,148	$	542,229
Europe	287,371		254,827		255,943
Japan	119,756		87,119		87,725
Pacific Rim	385,189		335,833		341,474
Other	12,631		15,061		16,762
Total revenues	$	1,282,467	$	1,180,988	$	1,244,133

For the fiscal year ended January 31, 2017, revenues from China were $188,641, or 14.7% of total revenues. For the fiscal year ended January 31, 2015, revenues from Korea were $135,696, or 10.9% of total revenues. These revenues are included in the Pacific Rim region in the table above.

For the fiscal years ended January 31, 2017, 2016 and 2015, no single customer accounted for 10% of our total revenues.

Property, plant and equipment, net, related to operations in the geographic areas were:

As of January 31,	2017		2016
Property, plant, and equipment, net:
United States	$	140,756	$	133,432
Europe	40,147		33,070
Japan	1,959		2,220
Pacific Rim	26,984		13,191
Other	834		179
Total property, plant and equipment, net	$	210,680	$	182,092