Major Customers and Concentrations of Credit Risk (Tables)

12 Months Ended

Dec. 31, 2016

Risks and Uncertainties [Abstract]

Schedule of Concentration Risk by Major Customers

Net revenues from our top ten customers, including the Boeing Company (“Boeing”), Raytheon Company (“Raytheon”), Spirit AeroSystems Holdings, Inc. (“Spirit”), and United Technologies Corporation (“United Technologies”), represented the following percentages of total net sales:

	Years Ended December 31,
	2016		2015		2014
Boeing	17.3	%	16.0	%	19.4	%
Raytheon	8.4	%	8.7	%	9.4	%
Spirit	8.2	%	7.4	%	6.4	%
United Technologies	6.0	%	6.1	%	5.5	%
Top ten customers (1)	58.6	%	55.7	%	59.2	%

(1) Includes the Boeing, Raytheon, Spirit, and United Technologies.

Boeing, Raytheon, Spirit, and United Technologies represented the following percentages of total accounts receivable:

	December 31,
	2016		2015
Boeing	7.8	%	13.3	%
Raytheon	10.9	%	11.5	%
Spirit	9.0	%	7.1	%
United Technologies	7.8	%	5.0	%