Segment Reporting

12 Months Ended

Jan. 31, 2015

Segment Reporting [Abstract]

Segment Reporting

Segment Reporting

Our Chief Operating Decision Makers (CODMs), which consist of the Chief Executive Officer and the President, review our consolidated results within one operating segment. In making operating decisions, our CODMs primarily consider consolidated financial information accompanied by disaggregated revenue information by geographic region.

We eliminate all intercompany revenues in computing revenues by geographic regions. Revenues and property, plant and equipment, net, related to operations in the geographic areas were:

Year ended January 31,	2015		2014		2013
Revenues:
United States	$	542,229	$	497,954	$	467,595
Europe	255,943		241,417		261,371
Japan	87,725		113,796		127,789
Pacific Rim	341,474		287,956		218,428
Other	16,762		15,250		13,544
Total revenues	$	1,244,133	$	1,156,373	$	1,088,727

For the year ended January 31, 2015, revenue from Korea was $135,696, or 10.9% of total revenue. This revenue is included in the Pacific Rim region in the table above.

For the years ended January 31, 2015, 2014 and 2013, no single customer accounted for 10% of our total revenues.

As of January 31,	2015		2014
Property, plant, and equipment, net:
United States	$	127,631	$	116,954
Europe	31,751		34,800
Japan	882		637
Pacific Rim	10,295		7,633
Other	178		141
Total property, plant and equipment, net	$	170,737	$	160,165