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Commitments and Contingencies - Summary of Reconciliation of Company's Residential Product Warranty Reserve (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Surface Flaking Warranty Reserve [Member]
Product Warranty Liability [Line Items]
Beginning balance	$ 25,494	$ 30,754
Provisions and changes in estimates	9,861	979
Settlements made during the period	(5,882)	(6,239)
Ending balance	29,473	25,494
Surface Flaking [Member]
Product Warranty Liability [Line Items]
Provisions and changes in estimates	6,500
Surface Flaking [Member] | Surface Flaking Warranty Reserve [Member]
Product Warranty Liability [Line Items]
Beginning balance	19,024	23,951
Provisions and changes in estimates	6,479	0
Settlements made during the period	(4,178)	(4,927)
Ending balance	21,325	19,024
Other Residential [Member] | Surface Flaking Warranty Reserve [Member]
Product Warranty Liability [Line Items]
Beginning balance	6,470	6,803
Provisions and changes in estimates	3,382	979
Settlements made during the period	(1,704)	(1,312)
Ending balance	$ 8,148	$ 6,470

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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.

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- Definition

Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (c)(1),(c)(5)
-URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249

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- Definition

Amount of decrease in the standard product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard product warranty. Excludes extended product warranties.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph ((c)(2))
-URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249

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Amount of increase (decrease) in the standard product warranty accrual from changes in estimates attributable to preexisting product warranties. Excludes extended product warranties.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph ((c)(4))
-URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249

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