Goodwill and Purchased Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Gross Goodwill and Other Purchased Intangible Assets

(In millions)	Composite Materials			Engineered Products			Total
Balance as of December 31, 2022	$	86.9		$	169.1		$	256.0
Amortization expense		(1.8	)		(5.0	)		(6.8	)
Currency translation adjustments and other		2.1			—			2.1
Balance as of December 31, 2023	$	87.2		$	164.1		$	251.3
Amortization expense		(1.8	)		(5.0	)		(6.8	)
Intangible Asset Impairment		—			(5.2	)		(5.2	)
Currency translation adjustments and other		(2.3	)		—			(2.3	)
Balance as of December 31, 2024	$	83.1		$	153.9		$	237.0

Schedule of Amortization Related to Definite Lived Intangible Assets

Amortization related to the definite lived intangible assets for the next five years and thereafter is as follows:

(In millions)
2025	$	5.5
2026		5.5
2027		5.4
2028		5.0
2029		5.0
Thereafter		19.8
Total	$	46.2