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Revenue Recognition (Tables) | 6 Months Ended
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Jun. 30, 2018
Revenue from Contract with Customer [Abstract] |
Summary of Revenues Disaggregated by End Market and Product | The following tables present our revenues disaggregated by end market and product (in thousands):
|  | Three months ended June 30, |  |  | Six months ended June 30, |
|  | 2018 |  |  |  |  |  | 2017(1) |  |  |  |  |  | 2018 |  |  |  |  |  | 2017(1) |  |  |  |
Residential new construction |  | $ | 257,904 |  |  |  | 77 | % |  | $ | 216,866 |  |  |  | 77 | % |  | $ | 487,546 |  |  |  | 77 | % |  | $ | 409,388 |  |  |  | 76 | %
Repair and remodel |  |  | 21,873 |  |  |  | 7 | % |  |  | 18,006 |  |  |  | 6 | % |  |  | 42,345 |  |  |  | 7 | % |  |  | 34,875 |  |  |  | 7 | %
Commercial |  |  | 52,807 |  |  |  | 16 | % |  |  | 47,324 |  |  |  | 17 | % |  |  | 104,421 |  |  |  | 16 | % |  |  | 93,602 |  |  |  | 17 | %
Net revenues |  | $ | 332,584 |  |  |  | 100 | % |  | $ | 282,196 |  |  |  | 100 | % |  | $ | 634,312 |  |  |  | 100 | % |  | $ | 537,865 |  |  |  | 100 | %
|  | Three months ended June 30, |  |  |  |  |  | Six months ended June 30, |  |  |  |
|  | 2018 |  |  |  |  |  | 2017(1) |  |  |  |  |  | 2018 |  |  |  |  |  | 2017(1) |  |  |  |
Insulation |  | $ | 218,493 |  |  |  | 66 | % |  | $ | 189,967 |  |  |  | 67 | % |  | $ | 420,768 |  |  |  | 67 | % |  | $ | 365,590 |  |  |  | 68 | %
Waterproofing |  |  | 24,892 |  |  |  | 7 | % |  |  | 22,119 |  |  |  | 8 | % |  |  | 47,498 |  |  |  | 7 | % |  |  | 43,124 |  |  |  | 8 | %
Shower doors, shelving and mirrors |  |  | 22,773 |  |  |  | 7 | % |  |  | 18,373 |  |  |  | 6 | % |  |  | 43,032 |  |  |  | 7 | % |  |  | 31,258 |  |  |  | 6 | %
Garage doors |  |  | 19,326 |  |  |  | 6 | % |  |  | 15,176 |  |  |  | 5 | % |  |  | 34,792 |  |  |  | 5 | % |  |  | 29,464 |  |  |  | 5 | %
Rain gutters |  |  | 10,608 |  |  |  | 3 | % |  |  | 10,188 |  |  |  | 4 | % |  |  | 19,266 |  |  |  | 3 | % |  |  | 18,630 |  |  |  | 3 | %
Blinds |  |  | 8,079 |  |  |  | 2 | % |  |  | 1,890 |  |  |  | 1 | % |  |  | 13,385 |  |  |  | 2 | % |  |  | 3,274 |  |  |  | 1 | %
Other building products |  |  | 28,413 |  |  |  | 9 | % |  |  | 24,483 |  |  |  | 9 | % |  |  | 55,571 |  |  |  | 9 | % |  |  | 46,525 |  |  |  | 9 | %
Net revenues |  | $ | 332,584 |  |  |  | 100 | % |  | $ | 282,196 |  |  |  | 100 | % |  | $ | 634,312 |  |  |  | 100 | % |  | $ | 537,865 |  |  |  | 100 | %
(1) | As noted above, prior period amounts have not been adjusted under the modified retrospective method.
Summary of Assets and Liabilities Related to Uncompleted Contracts and Customer Deposits | Contract assets and liabilities related to our uncompleted contracts and customer deposits were as follows (in thousands):
|  | June 30, |  |  | December 31, |
|  | 2018 |  |  | 2017 |
Contract assets |  | $ | 18,132 |  |  | $ | 6,182 |
Contract liabilities |  |  | (6,900 | ) |  |  | (4,376 | )
Schedule of Cost and Estimated Earnings on Uncompleted Contracts | Uncompleted contracts were as follows (in thousands):
|  | June 30, |  |  | Deember 31, |
|  | 2018 |  |  | 2017 |
Costs incurred on uncompleted contracts |  | $ | 109,643 |  |  | $ | 79,235 |
Estimated earnings |  |  | 57,995 |  |  |  | 44,035 |
Total |  |  | 167,638 |  |  |  | 123,270 |
Less: Billings to date |  |  | 153,687 |  |  |  | 121,464 |
Net under (over) billings |  | $ | 13,951 |  |  | $ | 1,806 |
Schedule of Net Under (Over) Billings | Net under (over) billings were as follows (in thousands):
|  | June 30, 2018 |  |  | December 31, 2017 |
Costs and estimated earnings in excess of billings on uncompleted contracts (contract assets) |  | $ | 18,132 |  |  | $ | 6,182 |
Billings in excess of costs and estimated earnings on uncompleted contracts (contract liabilities) |  |  | (4,181 | ) |  |  | (4,376 | )
Net under (over) billings |  | $ | 13,951 |  |  | $ | 1,806 |

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