Goodwill - Changes in Carrying Amount of Goodwill (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 379.7
LPC Acquisition	2.6
Goodwill, Ending Balance	382.3
Chemicals
Goodwill [Line Items]
Goodwill, Beginning Balance	352.6
LPC Acquisition	2.6
Goodwill, Ending Balance	355.2
Component products
Goodwill [Line Items]
Goodwill, Beginning Balance	27.1
Goodwill, Ending Balance	$ 27.1