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Commitments and Contingencies - Narrative (Details) R$ in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 BRL (R$)	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Loss Contingencies [Line Items]
Loss Contingency Accrual At Carrying Value	$ 0.4			$ 0.4
Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	1.5
Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	0.0
ACP [Member] \| Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	1.0
ACP [Member] \| Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	0.1
SB Decking [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	0.3
Houghton Combination [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	5.5			$ 5.6
Houghton environmental matters [Member] \| Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	6.0
Houghton environmental matters [Member] \| Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	5.0
Brazilian Indirect Taxes [Member]
Loss Contingencies [Line Items]
Gain (Loss) Related To Litigation Settlement		R$ 67	$ 13.3
Interest Income Other			4.9
Fededral income tax expense foreign			$ (8.4)
Insurance claim [Member]
Loss Contingencies [Line Items]
Gain (Loss) Related To Litigation Settlement	2.1
Proceeds from Insurance Settlement, Operating Activities	0.9
Insurance Settlements Receivable	$ 2.0