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Revenue Recognition (Tables) | 9 Months Ended
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Sep. 30, 2021
Revenue from Contract with Customer [Abstract] |
Summary of Revenues Disaggregated by End Market and Product |
| Three months ended September 30, |  | Nine months ended September 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
Residential new construction | $ | 386,346 |  |  | 76 | % |  | $ | 315,434 |  |  | 75 | % |  | $ | 1,091,414 |  |  | 76 | % |  | $ | 912,095 |  |  | 75 | %
Repair and remodel | 34,506 |  |  | 7 | % |  | 28,625 |  |  | 7 | % |  | 94,142 |  |  | 7 | % |  | 75,702 |  |  | 6 | %
Commercial | 88,911 |  |  | 17 | % |  | 76,427 |  |  | 18 | % |  | 249,371 |  |  | 17 | % |  | 223,959 |  |  | 19 | %
Net revenue | $ | 509,763 |  |  | 100 | % |  | $ | 420,486 |  |  | 100 | % |  | $ | 1,434,927 |  |  | 100 | % |  | $ | 1,211,756 |  |  | 100 | %
| Three months ended September 30, |  | Nine months ended September 30, |
| 2021 |  | 2020 |  | 2021 |  | 2020 |  |  |
Insulation | $ | 324,360 |  |  | 64 | % |  | $ | 268,292 |  |  | 64 | % |  | $ | 921,181 |  |  | 64 | % |  | $ | 779,045 |  |  | 64 | % |  |  |  |  |  |  |
Waterproofing | 34,514 |  |  | 7 | % |  | 33,272 |  |  | 8 | % |  | 98,727 |  |  | 7 | % |  | 89,855 |  |  | 7 | % |  |  |  |  |  |  |
Shower doors, shelving and mirrors | 35,411 |  |  | 7 | % |  | 29,282 |  |  | 7 | % |  | 101,830 |  |  | 7 | % |  | 85,199 |  |  | 7 | % |  |  |  |  |  |  |
Garage doors | 26,951 |  |  | 5 | % |  | 24,001 |  |  | 6 | % |  | 77,434 |  |  | 5 | % |  | 68,655 |  |  | 6 | % |  |  |  |  |  |  |
Rain gutters | 21,807 |  |  | 4 | % |  | 17,295 |  |  | 4 | % |  | 62,270 |  |  | 4 | % |  | 41,942 |  |  | 4 | % |  |  |  |  |  |  |
Fireproofing/firestopping(1) | 17,684 |  |  | 3 | % |  | 11,047 |  |  | 2 | % |  | 43,156 |  |  | 3 | % |  | 36,325 |  |  | 3 | % |  |  |  |  |  |  |
Window blinds | 13,197 |  |  | 3 | % |  | 12,166 |  |  | 3 | % |  | 37,398 |  |  | 3 | % |  | 34,651 |  |  | 3 | % |  |  |  |  |  |  |
Other building products | 35,839 |  |  | 7 | % |  | 25,131 |  |  | 6 | % |  | 92,931 |  |  | 7 | % |  | 76,084 |  |  | 6 | % |  |  |  |  |  |  |
Net revenue | $ | 509,763 |  |  | 100 | % |  | $ | 420,486 |  |  | 100 | % |  | $ | 1,434,927 |  |  | 100 | % |  | $ | 1,211,756 |  |  | 100 | % |  |  |  |  |  |  |
(1)Combined with "Other building products" in previous years.
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):
| September 30, 2021 |  | December 31, 2020
Contract assets | $ | 32,265 |  |  | $ | 24,334 |
Contract liabilities | (10,611) |  |  | (8,965) |
Schedule of Cost and Estimated Earnings on Uncompleted Contracts | Uncompleted contracts were as follows (in thousands):
| September 30, 2021 |  | December 31, 2020
Costs incurred on uncompleted contracts | $ | 216,929 |  |  | $ | 169,544 |
Estimated earnings | 112,854 |  |  | 90,737 |
Total | 329,783 |  |  | 260,281 |
Less: Billings to date | 301,626 |  |  | 240,665 |
Net under billings | $ | 28,157 |  |  | $ | 19,616 |
Schedule of Net Under Billings | Net under billings were as follows (in thousands):
| September 30, 2021 |  | December 31, 2020
Costs and estimated earnings in excess of billings on uncompleted contracts (contract assets) | $ | 32,265 |  |  | $ | 24,334 |
Billings in excess of costs and estimated earnings on uncompleted contracts (contract liabilities) | (4,108) |  |  | (4,718) |
Net under billings | $ | 28,157 |  |  | $ | 19,616 |

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