Segment Information - Schedule of Operating Segment Reporting Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Total sales	$ 390.6	$ 310.3
Other operating expense	(1.0)	(12.1)
Operating income (loss)	30.1	(10.2)
Depreciation and amortization	32.2	34.5
Stock-based compensation	10.4	9.0
Accrual basis additions to capital expenditures	11.1	4.0
Intersegment Elimination
Segment Reporting Information [Line Items]
Total sales	(16.8)	(13.8)
Corporate & Other and Intersegment Elimination
Segment Reporting Information [Line Items]
Total sales	(16.8)	(13.8)
Other operating expense	0.0	(0.1)
Operating income (loss)	(23.1)	(22.3)
Depreciation and amortization
Stock-based compensation	7.1	8.2
Accrual basis additions to capital expenditures
Composite Materials
Segment Reporting Information [Line Items]
Total sales	313.8	237.2
Composite Materials | Intersegment Elimination
Segment Reporting Information [Line Items]
Total sales	16.5	13.2
Composite Materials | Operating Segments
Segment Reporting Information [Line Items]
Total sales	330.3	250.4
Other operating expense	(0.9)	(12.7)
Operating income (loss)	42.6	7.4
Depreciation and amortization	28.6	30.8
Stock-based compensation	2.6	0.6
Accrual basis additions to capital expenditures	10.1	3.6
Engineered Products
Segment Reporting Information [Line Items]
Total sales	76.8	73.1
Engineered Products | Intersegment Elimination
Segment Reporting Information [Line Items]
Total sales	0.3	0.6
Engineered Products | Operating Segments
Segment Reporting Information [Line Items]
Total sales	77.1	73.7
Other operating expense	(0.1)	(0.7)
Operating income (loss)	(10.6)	4.7
Depreciation and amortization	3.6	3.7
Stock-based compensation	0.7	0.2
Accrual basis additions to capital expenditures	$ 1.0	$ 0.4