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Revenue Recognition | 3 Months Ended
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Mar. 31, 2018
Revenue from Contract with Customer [Abstract] |
Revenue Recognition | NOTE 3 – REVENUE RECOGNITION Adoption of ASC Topic 606, “Revenue from Contracts with Customers” On January 1, 2018, we adopted the new accounting standard ASC 606, “Revenue from Contracts with Customers” using the modified retrospective method applied to those contracts that were not completed as of January 1, 2018. Results for reporting periods beginning after January 1, 2018 are presented under Topic 606, while prior period amounts are not adjusted and continue to be reported in accordance with our historic accounting under Topic 605. We recorded a $2.9 million increase to opening retained earnings, net of tax, on January 1, 2018 due to the impact of adopting Topic 606, with the impact primarily related to the change in accounting for certain of our short-term contracts that were previously accounted for on a completed contract basis, whereas, under ASC 606, we now recognize revenue associated with these contracts over time as service is performed and the transfer of control occurs, based on a percentage-of-completion method using cost-to-cost input methods as a measure of progress. The comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. Revenue Recognition Our revenues are derived primarily through contracts with customers whereby we install insulation and other complimentary building products and are recognized when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. We account for a contract when it has approval and commitment from both parties, the rights of the parties are identified, payment terms are identified, the contract has commercial substance and collectability of consideration is probable. We recognize revenue using the percentage-of-completion method of accounting, utilizing a cost-to-cost input approach as we believe this represents the best measure of when goods and services are transferred to the customer. An insignificant portion of our sales, primarily retail sales, is accounted for on a point-in-time basis when the sale occurs, adjusted accordingly for any return provisions. We do offer assurance-type warranties on certain of our installed products and services that do not represent a separate performance obligation and, as such, do not impact the timing or extent of revenue recognition. When the percentage-of-completion method is used, we estimate the costs to complete individual contracts and record as revenue that portion of the total contract price that is considered complete based on the relationship of costs incurred to date to total anticipated costs (the cost-to-costapproach). Under the cost-to-cost approach, the use of estimated costs to complete each contract is a significant variable in the process of determining recognized revenue, requires significant judgment and can change throughout the duration of a contract due to contract modifications and other factors impacting job completion. The costs of earned revenue include all direct material and labor costs and those indirect costs related to contract performance, such as indirect labor, supplies, tools and repairs. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. Our long-term contracts can be subject to modification to account for changes in contract specifications and requirements. We consider contract modifications to exist when the modification either creates new, or changes the existing, enforceable rights and obligations. Most of our contract modifications are for goods or services that are not distinct from the existing contract due to the significant integration service provided in the context of the contract and are accounted for as if they were part of that existing contract. The effect of a contract modification on the transaction price and our measure of progress for the performance obligation to which it relates, is recognized as an adjustment to revenue (either as an increase in or a reduction of revenue) on a cumulative catch-up basis. Billing on our long-term contracts occurs primarily on a monthly basis throughout the contract period whereby we submit invoices for customer payment based on actual or estimated costs incurred during the billing period. On certain of our long-term contracts the customer may withhold payment on an invoice equal to a percentage of the invoice amount, which will be subsequently paid after satisfactory completion of each installation project. This amount is referred to as retainage and is common practice in the construction industry, as it allows for customers to ensure the quality of the service performed prior to full payment. Retainage receivables are classified as current or long-term assets based on the expected time to project completion. We disaggregate our revenue from contracts with customers by end market and product, as we believe it best depicts how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors. The following tables present our revenues disaggregated by end market and product for the three months ended March 31 (in thousands):
|  | 2018 |  |  |  |  |  | 2017(1) |  |  |  |
Residential and multi-family |  | $ | 250,114 |  |  |  | 83 | % |  | $ | 209,391 |  |  |  | 82 | %
Commercial |  |  | 51,614 |  |  |  | 17 | % |  |  | 46,278 |  |  |  | 18 | %
Net revenues |  | $ | 301,728 |  |  |  | 100 | % |  | $ | 255,669 |  |  |  | 100 | %
|  | 2018 |  |  |  |  |  | 2017(1) |  |  |  |
Insulation |  | $ | 202,275 |  |  |  | 67 | % |  | $ | 175,623 |  |  |  | 69 | %
Waterproofing |  |  | 22,606 |  |  |  | 7 | % |  |  | 21,005 |  |  |  | 8 | %
Shower doors, shelving and mirrors |  |  | 20,260 |  |  |  | 7 | % |  |  | 12,885 |  |  |  | 5 | %
Garage doors |  |  | 15,466 |  |  |  | 5 | % |  |  | 14,287 |  |  |  | 6 | %
Rain gutters |  |  | 8,658 |  |  |  | 3 | % |  |  | 8,442 |  |  |  | 3 | %
Other building products |  |  | 32,463 |  |  |  | 11 | % |  |  | 23,427 |  |  |  | 9 | %
Net revenues |  | $ | 301,728 |  |  |  | 100 | % |  | $ | 255,669 |  |  |  | 100 | %
(1) | As noted above, prior period amounts have not been adjusted under the modified retrospective method.
Contract Assets and Liabilities Our contract assets consist of unbilled amounts typically resulting from sales under long-term contracts when the cost-to-cost method of revenue recognition is utilized and revenue recognized, based on costs incurred, exceeds the amount billed to the customer. Our contract assets are recorded in other current assets in our Consolidated Balance Sheets. Our contract liabilities consist of customer deposits and billings in excess of revenue recognized, based on costs incurred and is included in other current liabilities in our Consolidated Balance Sheets. Contract assets and liabilities related to our uncompleted contracts and customer deposits were as follows as of March 31 and December 31 (in thousands):
|  | 2018 |  |  | 2017 |
Contract assets |  | $ | 18,101 |  |  | $ | 6,182 |
Contract liabilities |  |  | (6,963 | ) |  |  | (4,376 | )
Uncompleted contracts were as follows for the three months ended March 31 and December 31 (in thousands):
|  | 2018 |  |  | 2017 |
Costs incurred on uncompleted contracts |  | $ | 102,088 |  |  | $ | 79,235 |
Estimated earnings |  |  | 55,882 |  |  |  | 44,035 |
Total |  |  | 157,970 |  |  |  | 123,270 |
Less: Billings to date |  |  | 144,506 |  |  |  | 121,464 |
Net under (over) billings |  | $ | 13,464 |  |  | $ | 1,806 |
Net under (over) billings were as follows as of March 31 and December 31 (in thousands):
|  | 2018 |  |  | 2017 |
Costs and estimated earnings in excess of billings on uncompleted contracts (contract assets) |  | $ | 18,101 |  |  | $ | 6,182 |
Billings in excess of costs and estimated earnings on uncompleted contracts (contract liabilities) |  |  | (4,637 | ) |  |  | (4,376 | )
Net under (over) billings |  | $ | 13,464 |  |  | $ | 1,806 |
During the three months ended March 31, 2018, we recognized $6.3 million of revenue that was included in the contract liability balance at December 31, 2017. We did not recognize any impairment losses on our receivables and contract assets during the three months ended March 31, 2018. Remaining performance obligations represent the transaction price of contracts for which work has not been performed and excludes unexercised contract options and potential modifications. As of March 31, 2018, the aggregate amount of the transaction price allocated to remaining uncompleted contracts was $78.6 million. We expect to recognize revenue on substantially all of these uncompleted contracts over the next 18 months. Practical Expedients and Exemptions We generally expense sales commissions and other incremental costs of obtaining a contract when incurred because the amortization period is usually one year or less. Sales commissions are recorded within selling expenses within the Condensed Consolidated Statements of Operations and Comprehensive Income.

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -URI http://asc.fasb.org/topic&trid=49130388 + Details
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