Segment Information (Tables)

12 Months Ended

Dec. 31, 2024

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

The following tables present financial information on our segments as of December 31, 2024, 2023 and 2022 and for the years then ended.

	Composite		Engineered		Corporate &
(In millions)	Materials		Products		Other (a)			Total
Year Ended December 31, 2024
Net sales to external customers	$	1,531.0	$	372.0	$	—		$	1,903.0
Intersegment sales		90.0		1.2		(91.2	)		—
Total sales		1,621.0		373.2		(91.2	)		1,903.0
Cost of sales		1,218.8		299.5		(85.1	)		1,433.2
Gross margin		402.2		73.7		(6.1	)		469.8
Selling, general and administrative expenses		98.3		21.7		56.6			176.6
Research and technology expenses		48.1		4.7		4.3			57.1
Other operating expense		40.8		7.7		1.5			50.0
Operating income (loss)	$	215.0	$	39.6	$	(68.5	)	$	186.1
Year Ended December 31, 2023
Net sales to external customers	$	1,474.2	$	314.8	$	—		$	1,789.0
Intersegment sales		70.6		2.4		(73.0	)		—
Total sales		1,544.8		317.2		(73.0	)		1,789.0
Cost of sales		1,165.1		261.1		(70.4	)		1,355.8
Gross margin		379.7		56.1		(2.6	)		433.2
Selling, general and administrative expenses		95.5		19.0		49.3			163.8
Research and technology expenses		45.1		4.1		3.5			52.7
Other operating expense		1.2		0.2		—			1.4
Operating income (loss)	$	237.9	$	32.8	$	(55.4	)	$	215.3
Year Ended December 31, 2022
Net sales to external customers	$	1,279.7	$	298.0	$	—		$	1,577.7
Intersegment sales		66.3		2.8		(69.1	)		—
Total sales		1,346.0		300.8		(69.1	)		1,577.7
Cost of sales		1,039.6		244.0		(63.0	)		1,220.6
Gross margin		306.4		56.8		(6.1	)		357.1
Selling, general and administrative expenses		82.8		15.7		49.5			148.0
Research and technology expenses		37.9		4.5		3.4			45.8
Other operating expense		7.5		—		(19.4	)		(11.9	)
Operating income (loss)	$	178.2	$	36.6	$	(39.6	)	$	175.2

(In millions)	Composite Materials		Engineered Products		Corporate & Other		Total
Depreciation and amortization
2024	$	109.1	$	14.9	$	—	$	124.0
2023		110.4		14.4		0.0		124.8
2022		112.0		14.1		0.1		126.2
Equity in earnings (losses) from affiliated companies
2024	$	—	$	—	$	—	$	—
2023		—		8.1		—		8.1
2022		—		8.1		—		8.1
Segment assets
2024	$	2,147.6	$	541.4	$	36.6	$	2,725.6
2023		2,309.3		543.1		66.1		2,918.5
2022		2,269.4		523.2		44.7		2,837.3
Investments in affiliated companies
2024	$	—	$	—	$	5.0	$	5.0
2023		-		-		5.0		5.0
2022		1.5		38.6		7.5		47.6
Accrual basis additions to property, plant and equipment
2024	$	67.1	$	14.0	$	—	$	81.1
2023		70.9		50.7		—		121.6
2022		58.3		11.4		0.1		69.8
Stock-based compensation
2024	$	6.1	$	1.5	$	14.6	$	22.2
2023		6.2		1.7		13.0		20.9
2022		5.8		1.6		12.6		20.0

Schedule of Net Sales and Long-Lived Assets, by Geographic Area

Net sales and long-lived assets, by geographic area, consisted of the following for the three years ended December 31, 2024, 2023 and 2022:

(In millions)	2024		2023		2022
Net Sales by Geography (a):
United States	$	955.8	$	888.2	$	819.4
International
France		340.8		320.4		235.9
Spain		199.4		183.2		158.9
Germany		149.2		153.6		138.6
United Kingdom		167.8		150.4		119.0
Austria		38.1		56.1		72.8
Other		51.9		37.1		33.1
Total international		947.2		900.8		758.3
Total consolidated net sales	$	1,903.0	$	1,789.0	$	1,577.7
Net Sales to External Customers (b):
United States	$	779.9	$	737.5	$	667.7
International
Germany		141.0	141.2		122.3
France		170.1	174.7		143.4
Spain		147.7	138.1		124.7
United Kingdom		66.7		65.3		51.1
Other		597.6		532.2		468.5
Total international		1,123.1		1,051.5		910.0
Total consolidated net sales	$	1,903.0	$	1,789.0	$	1,577.7
Long-lived Assets (c):
United States	$	1,363.8	$	1,410.3	$	1,420.9
International
France	$	294.8	322.7		318.1
United Kingdom		99.8	107.2		107.5
Spain		42.4	45.5		45.8
Other		58.2	73.6		71.2
Total international		495.2		549.0		542.6
Total consolidated long-lived assets	$	1,859.0	$	1,959.3	$	1,963.5

(a)Net sales by geography based on the location in which the product sold was manufactured.

(b)Net sales to external customers based on the location to which the product sold was delivered.

(c)Long-lived assets primarily consist of property, plant and equipment, net and goodwill at December 31, 2024, 2023 and 2022. Also included are right of use assets related to operating leases.