Segment Information - Schedule of Goodwill and Intangible Assets by Segment (Details) $ in Millions	9 Months Ended
	Sep. 30, 2024 USD ($)
Changes in the carrying amount of gross goodwill and other purchased intangibles
Balance at Period Beginning	$ 251.3
Amortization expense	(1.7)
Currency translation adjustments	(1.9)
Balance at Period Ending	247.7
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	0.5
Balance at Period Ending	87.3
Engineered Products
Changes in the carrying amount of gross goodwill and other purchased intangibles
Balance at Period Beginning	164.1
Amortization expense	(1.3)
Currency translation adjustments	(2.4)
Balance at Period Ending	$ 160.4