Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Dec. 31, 2021
Loss Contingencies [Line Items]
Loss Contingency Accrual At Carrying Value	$ 0.4
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 Accrual At Carrying Value	$ 0.3
Period Of Projected Claims Of Subusidiary	50 years
Houghton environmental matters [Member]
Loss Contingencies [Line Items]
Loss Contingency Accrual At Carrying Value	$ 5.9	$ 5.6
Period Of Projected Claims Of Subusidiary	27 years
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
Insurance claim [Member]
Loss Contingencies [Line Items]
Gain (Loss) Related To Litigation Settlement	2.1
Proceeds from Insurance Settlement, Operating Activities	0.5
Insurance Settlements Receivable	$ 2.0

The period of total projected claims liability of the subsidiary.

No definition available.

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- Definition

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349

+ Details

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- Definition

Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Amount of loss contingency liability.

+ References

+ Details

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- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
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-Name Accounting Standards Codification
-Topic 450
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-Section 50
-Paragraph 9
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-URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=124440162&loc=d3e12021-110248

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- Definition

Amount of cash inflow for proceeds from settlement of insurance claim, classified as operating activities. Excludes insurance settlement classified as investing activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 16
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3337-108585

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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-Section 45
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-URI http://asc.fasb.org/extlink&oid=123570139&loc=SL94080549-108585

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