Revenue - Schedule of Activity Related to Contract Assets (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($)
Change in Contract with Customer Asset [Line Items]
Beginning Balance	$ 52.7
Net revenue billed	3.2
Ending Balance	55.9
Composite Materials
Change in Contract with Customer Asset [Line Items]
Beginning Balance	12.8
Net revenue billed	(1.4)
Ending Balance	11.4
Engineered Products
Change in Contract with Customer Asset [Line Items]
Beginning Balance	39.9
Net revenue billed	4.6
Ending Balance	$ 44.5