Segment Information - Schedule of Goodwill and Intangible Assets by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Changes in the carrying amount of gross goodwill and other purchased intangibles
Goodwill and other intangible assets, net	$ 248.7	$ 251.3
Balance at Period Beginning	251.3
Amortization expense	(1.6)
Currency translation adjustments	(1.0)
Intangible Assets, Net (Including Goodwill), Total	248.7	$ 251.3
Balance at Period Ending	248.7
Composite Materials
Changes in the carrying amount of gross goodwill and other purchased intangibles
Balance at Period Beginning	87.2
Amortization expense	(0.4)
Currency translation adjustments	(1.0)
Balance at Period Ending	85.8
Engineered Products
Changes in the carrying amount of gross goodwill and other purchased intangibles
Balance at Period Beginning	164.1
Amortization expense	(1.2)
Currency translation adjustments	0.0
Balance at Period Ending	$ 162.9