Significant Concentration of Risk

12 Months Ended

Dec. 31, 2020

Risks and Uncertainties [Abstract]

Significant Concentration Risk

Significant Concentrations of Risk

Economic Dependence

The Company’s largest customer (Boeing) accounted for approximately 60%, 79%, and 79% of the revenues for the periods ended December 31, 2020, 2019, and 2018, respectively. Approximately 16%, 40%, and 36% of the Company's accounts receivable balance at December 31, 2020, 2019, and 2018, respectively, was attributable to Boeing.

The Company’s second largest customer (Airbus) accounted for approximately 23%, 16%, and 16% of the revenues for the periods ended December 31, 2020, 2019, and 2018, respectively. Approximately 37%, 41%, and 48% of the Company's accounts receivable balance at December 31, 2020, 2019, and 2018, respectively, was attributable to Airbus.

Employees

As of December 31, 2020, the Company had approximately 14,500 employees: 9,700 located in the Company's five U.S. facilities, 3,800 located at the U.K. facilities, 700 located in the Malaysia facility, 200 in Morocco, and 100 located in the France facility.

Approximately 83% of the Company’s U.S. employees are represented by five unions. Approximately 1% of the Company's US employees are represented by an International Brotherhood of Electrical Workers (IBEW) collective bargaining agreement that will expire in September 2023 and approximately 52% of US employees are represented by the International Association of Machinists and Aerospace Workers (IAM) collective bargaining agreement. On January 18, 2020 the Wichita IAM collective bargaining agreement was extended to June 2023.