Commitments and Contingencies - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2025 USD ($)
Industrial Revenue Bonds [Member]
Schedule Of Commitments And Contingencies [Line Items]
Bonds issue	$ 450
Gross asset and liability	$ 100
Residential Use [Member] \| Products Sold Prior to January One, Two Thousand and Twenty Three [Member]
Schedule Of Commitments And Contingencies [Line Items]
Warranty period	25 years
Commercial Use [Member]
Schedule Of Commitments And Contingencies [Line Items]
Warranty period	10 years
Commercial Use [Member] \| Products Sold Prior to January One, Two Thousand and Twenty Three [Member]
Schedule Of Commitments And Contingencies [Line Items]
Warranty period	10 years
Signature Railing And Transcend Cladding [Member] \| Commercial Use [Member]
Schedule Of Commitments And Contingencies [Line Items]
Warranty period	25 years
Transcend Decking [Member] \| Residential Use [Member] \| Products Sold on or After January One, Two Thousand and Twenty Three [Member]
Schedule Of Commitments And Contingencies [Line Items]
Warranty period	50 years
Select Decking And Universal Fascia [Member] \| Residential Use [Member] \| Products Sold on or After January One, Two Thousand and Twenty Three [Member]
Schedule Of Commitments And Contingencies [Line Items]
Warranty period	35 years
Enhance Decking And Transcend, Select, Enhance And Signature Railing [Member] \| Residential Use [Member] \| Products Sold on or After January One, Two Thousand and Twenty Three [Member]
Schedule Of Commitments And Contingencies [Line Items]
Warranty period	25 years
Signature Railing [Member] \| Residential and Commercial Use [Member] \| Products Sold Prior to January One, Two Thousand and Twenty Three [Member]
Schedule Of Commitments And Contingencies [Line Items]
Warranty period	25 years