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Concentrations of risk and segment information (Tables)

9 Months Ended

Sep. 30, 2015

Revenue by geographic region, based on ship-to destinations, was as follows:



	Three months ended				Nine months ended
(in thousands)	September 30, 2015		September 30, 2014		September 30, 2015		September 30, 2014
Americas	$	190,839	$	204,893	$	583,282	$	482,769
Europe, Middle East and Africa (EMEA)	156,639		56,068		432,904		207,285
Asia and Pacific area countries (APAC)	52,862		19,010		167,182		70,238
	$	400,340	$	279,971	$	1,183,368	$	760,292

The Company had the following customers who represented 10% or more of its net accounts receivable balance:

* Less than 10% of total accounts receivable for the period indicated

Customers with revenue equal to or greater than 10% of the Company's total revenue were as follows:

* Less than 10% of total revenue for the period indicated