Significant Customers

3 Months Ended

Dec. 31, 2017

Risks and Uncertainties [Abstract]

Significant Customers

15. Significant Customers

The Company had one customer within the Brooks Semiconductor Solutions Group segment that accounted for 10% or more of its consolidated revenue, at 11%, during each of the three months ended December 31, 2017 and 2016.  As of December 31, 2017 and September 30, 2017, the Company had no customers that accounted for 10% or more of the Company’s total receivables.

For purposes of determining the percentage of revenue generated from any of the Company’s original equipment manufacturer (the "OEM") customers, the Company does not include revenue from products sold to contract manufacturer customers who in turn sell to the OEMs. If the Company included revenue from products sold to contract manufacturer customers supporting the Company’s OEM customers, the percentage of the Company’s total revenue derived from certain OEM customers would be higher.