Goodwill and Purchased Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Gross Goodwill and Other Purchased Intangible Assets

Changes in the carrying amount of gross goodwill and other purchased intangibles for the years ended December 31, 2020 and 2019, by segment, are as follows:

(In millions)	Composite Materials			Engineered Products			Total
Balance as of December 31, 2018	$	98.2		$	44.1		$	142.3
Amortization expense		(2.0	)		(4.9	)		(6.9	)
Additions		—			145.1			145.1
Currency translation adjustments and other		—			(0.1	)		(0.1	)
Balance as of December 31, 2019	$	96.2		$	184.2		$	280.4
Amortization expense		(1.9	)		(5.0	)		(6.9	)
Currency translation adjustments and other		4.4			(0.1	)		4.3
Balance as of December 31, 2020	$	98.7		$	179.1		$	277.8

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)
2021	$	7.0
2022		7.0
2023		7.0
2024		6.7
2025		6.7
Thereafter		41.0
Total	$	75.4