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Revenue Recognition (Tables) | 3 Months Ended
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Mar. 31, 2021
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 March 31, |
| 2021 |  | 2020 |  |  |
Residential new construction | $ | 326,858 |  |  | 75 | % |  | $ | 298,340 |  |  | 75 | % |  |  |  |  |  |  |
Repair and remodel | 33,563 |  |  | 8 | % |  | 24,043 |  |  | 6 | % |  |  |  |  |  |  |
Commercial | 76,645 |  |  | 17 | % |  | 74,948 |  |  | 19 | % |  |  |  |  |  |  |
Net revenues | $ | 437,066 |  |  | 100 | % |  | $ | 397,331 |  |  | 100 | % |  |  |  |  |  |  |
| Three months ended March 31, |
| 2021 |  | 2020 |  |  |
Insulation | $ | 283,456 |  |  | 65 | % |  | $ | 259,701 |  |  | 65 | % |  |  |  |  |  |  |
Waterproofing | 29,949 |  |  | 7 | % |  | 28,505 |  |  | 7 | % |  |  |  |  |  |  |
Shower doors, shelving and mirrors | 31,433 |  |  | 7 | % |  | 27,015 |  |  | 7 | % |  |  |  |  |  |  |
Garage doors | 24,439 |  |  | 5 | % |  | 22,987 |  |  | 6 | % |  |  |  |  |  |  |
Rain gutters | 19,003 |  |  | 4 | % |  | 11,576 |  |  | 3 | % |  |  |  |  |  |  |
Fireproofing/firestopping(1) | 12,435 |  |  | 3 | % |  | 11,741 |  |  | 3 | % |  |  |  |  |  |  |
Window blinds | 11,534 |  |  | 3 | % |  | 10,931 |  |  | 3 | % |  |  |  |  |  |  |
Other building products | 24,817 |  |  | 6 | % |  | 24,875 |  |  | 6 | % |  |  |  |  |  |  |
Net revenues | $ | 437,066 |  |  | 100 | % |  | $ | 397,331 |  |  | 100 | % |  |  |  |  |  |  |
(1)Combined with "Other building products" in previous years but shown separately to conform with updated disclosures.
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):
| March 31, 2021 |  | December 31, 2020
Contract assets | $ | 27,641 |  |  | $ | 24,334 |
Contract liabilities | (9,724) |  |  | (8,965) |
Schedule of Cost and Estimated Earnings on Uncompleted Contracts | Uncompleted contracts were as follows (in thousands):
| March 31, 2021 |  | December 31, 2020
Costs incurred on uncompleted contracts | $ | 182,748 |  |  | $ | 169,544 |
Estimated earnings | 94,802 |  |  | 90,737 |
Total | 277,550 |  |  | 260,281 |
Less: Billings to date | 254,840 |  |  | 240,665 |
Net under billings | $ | 22,710 |  |  | $ | 19,616 |
Schedule of Net Under Billings | Net under billings were as follows (in thousands):
| March 31, 2021 |  | December 31, 2020
Costs and estimated earnings in excess of billings on uncompleted contracts (contract assets) | $ | 27,641 |  |  | $ | 24,334 |
Billings in excess of costs and estimated earnings on uncompleted contracts (contract liabilities) | (4,931) |  |  | (4,718) |
Net under billings | $ | 22,710 |  |  | $ | 19,616 |

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