Major Customers and Concentrations of Credit Risk (Tables)

12 Months Ended

Dec. 31, 2019

Risks and Uncertainties [Abstract]

Schedule of Concentration Risk by Major Customers

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

	Years Ended December 31,
	2019		2018		2017
Boeing	16.6	%	17.0	%	16.3	%
Lockheed Martin	4.0	%	4.4	%	5.5	%
Raytheon	11.0	%	11.7	%	13.5	%
Spirit	12.2	%	9.5	%	8.2	%
Top ten customers (1)	63.5	%	62.9	%	62.5	%

(1) Includes Boeing, Lockheed Martin, Raytheon, and Spirit.

Boeing, Lockheed Martin, Raytheon, and Spirit represented the following percentages of total accounts receivable:

	December 31,
	2019		2018
Boeing	5.9	%	8.0	%
Lockheed Martin	0.8	%	2.5	%
Raytheon	3.3	%	3.2	%
Spirit	2.0	%	—	%