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Revenue Recognition - Summary of Revenues Disaggregated by End Market and Product (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Net revenues	$ 393,939	$ 371,814	$ 791,270	$ 713,949
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	$ 251,052	$ 235,473	$ 510,753	$ 456,695
Insulation [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	64.00%	63.00%	64.00%	64.00%
Waterproofing [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 28,078	$ 28,858	$ 56,583	$ 51,243
Waterproofing [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	7.00%	8.00%	7.00%	7.00%
Shower Doors, Shelving and Mirrors [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 28,902	$ 26,900	$ 55,917	$ 50,817
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	$ 21,667	$ 21,782	$ 44,654	$ 43,454
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	$ 13,071	$ 12,996	$ 24,647	$ 24,195
Rain Gutters [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	3.00%	4.00%	3.00%	3.00%
Window blinds [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 11,554	$ 10,781	$ 22,485	$ 20,165
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	$ 39,615	$ 35,024	$ 76,231	$ 67,380
Other Building Products [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	10.00%	9.00%	10.00%	10.00%
Residential New Construction [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 298,321	$ 282,494	$ 596,661	$ 543,804
Residential New Construction [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	76.00%	76.00%	75.00%	76.00%
Repair and Remodel [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 23,034	$ 24,705	$ 47,077	$ 46,225
Repair and Remodel [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	6.00%	7.00%	6.00%	7.00%
Commercial [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 72,584	$ 64,615	$ 147,532	$ 123,920
Commercial [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	18.00%	17.00%	19.00%	17.00%

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