Segment Information - Additional Information (Details) - item	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Number of reporting segments	2
Net sales | Customer concentration | Airbus and its subcontractors
Segment Reporting Information [Line Items]
Concentration percentage (as a percent)	33.00%	39.00%
Net sales | Customer concentration | Airbus and its subcontractors | Commercial Aerospace Market Applications
Segment Reporting Information [Line Items]
Concentration percentage (as a percent)	30.00%
Net sales | Customer concentration | Airbus and its subcontractors | Space & Defense Market Applications
Segment Reporting Information [Line Items]
Concentration percentage (as a percent)	3.00%
Net sales | Customer concentration | Airbus and its subcontractors | Composite Materials
Segment Reporting Information [Line Items]
Concentration percentage (as a percent)	38.00%	44.00%	46.00%
Net sales | Customer concentration | Boeing company and its subcontractors
Segment Reporting Information [Line Items]
Concentration percentage (as a percent)	19.00%	25.00%
Net sales | Customer concentration | Boeing company and its subcontractors | Commercial Aerospace Market Applications
Segment Reporting Information [Line Items]
Concentration percentage (as a percent)	16.00%
Net sales | Customer concentration | Boeing company and its subcontractors | Space & Defense Market Applications
Segment Reporting Information [Line Items]
Concentration percentage (as a percent)	3.00%
Net sales | Customer concentration | Boeing company and its subcontractors | Composite Materials
Segment Reporting Information [Line Items]
Concentration percentage (as a percent)	13.00%	17.00%	16.00%
Net sales | Customer concentration | Boeing company and its subcontractors | Engineered Products
Segment Reporting Information [Line Items]
Concentration percentage (as a percent)	40.00%	55.00%	63.00%