Revenue Recognition - Summary of Revenues Disaggregated by End Market and Product (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Net revenues	$ 420,486	$ 396,449	$ 1,211,756	$ 1,110,398
Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	100.00%	100.00%	100.00%	100.00%
Insulation [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 268,292	$ 253,311	$ 779,045	$ 710,005
Insulation [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	64.00%	64.00%	64.00%	64.00%
Waterproofing [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 33,272	$ 32,781	$ 89,855	$ 84,024
Waterproofing [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	8.00%	8.00%	7.00%	8.00%
Shower Doors, Shelving and Mirrors [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 29,282	$ 27,011	$ 85,199	$ 77,828
Shower Doors, Shelving and Mirrors [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	7.00%	7.00%	7.00%	7.00%
Garage Doors [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 24,001	$ 22,336	$ 68,655	$ 65,790
Garage Doors [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	6.00%	6.00%	6.00%	6.00%
Rain Gutters [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 17,295	$ 13,366	$ 41,942	$ 37,561
Rain Gutters [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	4.00%	3.00%	4.00%	3.00%
Window blinds [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 12,166	$ 10,615	$ 34,651	$ 30,780
Window blinds [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	3.00%	3.00%	3.00%	3.00%
Other Building Products [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 36,178	$ 37,029	$ 112,409	$ 104,410
Other Building Products [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	8.00%	9.00%	9.00%	9.00%
Residential New Construction [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 315,434	$ 297,003	$ 912,095	$ 840,806
Residential New Construction [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	75.00%	75.00%	75.00%	76.00%
Repair and Remodel [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 28,625	$ 25,029	$ 75,702	$ 71,254
Repair and Remodel [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	7.00%	6.00%	6.00%	6.00%
Commercial [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 76,427	$ 74,417	$ 223,959	$ 198,338
Commercial [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	18.00%	19.00%	19.00%	18.00%