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Organization - Summary of Annual Percentage of Installation Net Revenue by Product Category (Detail) - Customer Concentration Risk [Member] - Revenue [Member] | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Concentration Risk [Line Items] |  |  |
Net revenues percentage | 100.00% | 100.00% | 100.00%
Insulation [Member] |  |  |
Concentration Risk [Line Items] |  |  |
Net revenues percentage | 67.00% | 77.00% | 78.00%
Waterproofing [Member] |  |  |
Concentration Risk [Line Items] |  |  |
Net revenues percentage | 8.00% | 2.00% | 2.00%
Shower doors, shelving and mirrors [Member] |  |  |
Concentration Risk [Line Items] |  |  |
Net revenues percentage | 7.00% | 5.00% | 5.00%
Garage doors [Member] |  |  |
Concentration Risk [Line Items] |  |  |
Net revenues percentage | 5.00% | 6.00% | 6.00%
Rain gutters [Member] |  |  |
Concentration Risk [Line Items] |  |  |
Net revenues percentage | 4.00% | 4.00% | 5.00%
Other building products [Member] |  |  |
Concentration Risk [Line Items] |  |  |
Net revenues percentage | 9.00% | 6.00% | 4.00%

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13531-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6404-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13537-108611 + Details
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