Segment Information - Schedule of Operating Segment Reporting Information (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Sales	[1],[2]	$ 1,789,000	$ 1,577,700	$ 1,324,700
Operating income (loss)		215,300	175,200	51,800
Depreciation and amortization		124,800	126,200	138,000
Equity in earnings (losses) from affiliated companies		8,100	8,100
Other operating expense (income)		1,400	(11,900)	18,200
Segment assets		2,918,500	2,837,300	2,819,400
Investments in affiliated companies		5,000	47,600	44,600
Accrual basis additions to property, plant and equipment		121,600	69,800	41,400
Composite Materials
Segment Reporting Information [Line Items]
Sales		1,474,200	1,279,700	1,019,400
Composite Materials | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)		237,900	178,200	88,100
Depreciation and amortization		110,400	112,000	123,400
Equity in earnings (losses) from affiliated companies				(100)
Other operating expense (income)		1,200	7,500	17,800
Segment assets		2,309,300	2,269,400	2,258,200
Investments in affiliated companies			1,500	1,700
Accrual basis additions to property, plant and equipment		70,900	58,300	35,700
Composite Materials | Intersegment Elimination
Segment Reporting Information [Line Items]
Sales		70,600	66,300	56,700
Engineered Products
Segment Reporting Information [Line Items]
Sales		314,800	298,000	305,300
Engineered Products | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)		32,800	36,600	20,200
Depreciation and amortization		14,400	14,100	14,500
Equity in earnings (losses) from affiliated companies		8,100	8,100	200
Other operating expense (income)		200	0	100
Segment assets		543,100	523,200	475,600
Investments in affiliated companies			38,600	35,300
Accrual basis additions to property, plant and equipment		50,700	11,400	5,700
Engineered Products | Intersegment Elimination
Segment Reporting Information [Line Items]
Sales		2,400	2,800	2,400
Corporate & Other and Intersegment Elimination | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)		(55,400)	(39,600)	(56,500)
Depreciation and amortization		0	100	100
Equity in earnings (losses) from affiliated companies				(100)
Other operating expense (income)		0	(19,400)	300
Segment assets		66,100	44,700	85,600
Investments in affiliated companies		5,000	7,500	7,600
Accrual basis additions to property, plant and equipment			100
Corporate & Other and Intersegment Elimination | Intersegment Elimination
Segment Reporting Information [Line Items]
Sales		$ (73,000)	$ (69,100)	$ (59,100)

[1] Net sales by geography based on the location in which the product sold was manufactured.

[2] Net sales to external customers based on the location to which the product sold was delivered.