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Basis of Presentation and Principles of Consolidation - Additional Information (Detail) - Fiberon [Member] - USD ($)
$ in Millions
1 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2018
Business Acquisition [Line Items]    
Business acquisition, membership interest acquired 100.00% 100.00%
Business acquisition, total purchase price $ 470.0 $ 470.0