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Summary of Business and Significant Accounting Policies (Policies) | 9 Months Ended
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Sep. 30, 2018
Accounting Policies [Abstract] |
Presentation | Presentation The condensed consolidated financial statements included herein have been prepared by Sterling, without audit, in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”) and should be read in conjunction with the Annual Report on Form 10-K for the year ended December 31, 2017 (“2017 Form 10-K”). Certain information and note disclosures prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been either condensed or omitted pursuant to SEC rules and regulations. The condensed consolidated financial statements reflect, in the opinion of management, all normal recurring adjustments necessary to present fairly the Company’s financial position at September 30, 2018 and the results of operations and cash flows for the periods presented. The December 31, 2017 condensed consolidated balance sheet data herein was derived from audited financial statements, but as discussed above, does not include all disclosures required by GAAP. Interim results may be subject to significant seasonal variations and the results of operations for the three and nine months ended September 30, 2018 are not necessarily indicative of the results expected for the full year or subsequent quarters.
Use of Estimates | Use of Estimates The preparation of the accompanying condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Certain of the Company’s accounting policies require higher degrees of judgment than others in their application. These include among other things the recognition of revenue and earnings from construction contracts over time, the valuation of long-term assets, income taxes, purchase accounting, intangibles and goodwill. Management continually evaluates all of its estimates and judgments based on available information and experience; however, actual results could differ from these estimates.
Reclassifications | Reclassification Reclassifications have been made to historical financial data on our condensed consolidated financial statements to conform to our current year presentation.
Principles of Consolidation | Principles of Consolidation The accompanying condensed consolidated financial statements include the accounts of subsidiaries and construction joint ventures in which the Company has 50% or greater ownership interest or otherwise exercises control over such entities. For investments in construction joint ventures that are not wholly-owned, but where the Company exercises control, the equity held by the remaining owners and their portions of net income are reflected in the balance sheet line item “Noncontrolling interests” in “Equity” and the statement of operations line item “Noncontrolling interests in earnings,” respectively. For investments in subsidiaries that are not wholly-owned, but where the Company exercises control and where the Company has a mandatorily redeemable interest, the equity held by the remaining owners and their portion of net income (loss) is reflected in the balance sheet line item “Members' interest subject to mandatory redemption and undistributed earnings” and the statement of operations line item “Other operating expense, net” respectively. All significant intercompany accounts and transactions have been eliminated in consolidation. Where the Company is a noncontrolling joint venture partner, and is otherwise not required to consolidate the joint venture entity, its share of the earnings of such construction joint venture is accounted for on a pro rata basis in the condensed consolidated statements of operations and as a single line item (“Receivables from and equity in construction joint ventures”) in the condensed consolidated balance sheets. This method is a permissible modification of the equity method of accounting which is a common practice in the construction industry.
Revenue Recognition | Revenue Recognition Heavy Civil Construction The Company engages in various types of heavy civil construction projects principally for public (government) owners. Revenues are recognized as performance obligations are satisfied over time (also known as percentage-of-completion method), measured by the ratio of costs incurred up to a given date to estimated total costs for each contract. This cost to cost measure is used because management considers it to be the best available measure of progress on these contracts. Contract costs include all direct material, labor, subcontract and other costs and those indirect costs determined to relate to contract performance, such as indirect salaries and wages, equipment repairs and depreciation, insurance and payroll taxes. Administrative and general expenses are charged to expense as incurred. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. Changes in job performance, job conditions, estimated profitability and associated change orders and claims, including those changes arising from contract penalty provisions and final contract settlements, may result in revisions to costs and income and are recognized in the period in which the revisions are determined. Residential Construction Residential construction revenue and related profit are recognized when construction on the concrete foundation unit is completed (i.e., at a point in time). The time from starting construction to finishing is typically less than one month.
Recently Adopted and Issued Accounting Pronouncements | Recently Adopted Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-9, “Revenue from Contracts with Customers”, which provides a single comprehensive accounting standard for revenue recognition for contracts with customers and supersedes current industry-specific guidance, including ASC 605-35. The new standard requires companies to recognize revenue when control of promised goods or services is transferred to customers at an amount that reflects the consideration to which the company expects to be entitled in exchange for the goods or services. The new model requires companies to identify contractual performance obligations and determine whether revenue should be recognized at a point in time or over time for each of these obligations. The new standard also significantly expands disclosure requirements regarding the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. Sterling adopted the new standard on January 1, 2018, for all contracts using the modified retrospective method that is described in the following paragraph. The adoption of the new revenue standard had no material impact on its condensed consolidated financial statements as it did not require a change in revenue recognition for either of its segments. As such, comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. Sterling implemented the new standard's transitional rules as follows: ASC 606-10-65-1 permits the omission of prior-period information about its performance obligations that were not complete at the time of its new adoption of the new standard. Further, rather than applying the new recognition policy on a contract by contract basis, ASC 606-10-32-18 allows the new standard to be applied against a portfolio of contracts (or performance obligations) with similar characteristics. As the majority of its significant contracts are with government entities and major homebuilders that utilize contracts of a similar structure and nature, this new accounting policy did not yield a material difference for the Company than applying the guidance on a contract by contract basis. In addition to the foregoing, ASC 606-10-32-18 allows entities to waive the requirement to adjust the consideration amount for the effects of a significant financing component if the entity expects, at contract inception, that the period between its fulfillment of the performance obligation and receipt of the customer's payment is less than one year. Further ASC 606-10-32-2A allows entities to make an accounting policy election to exclude taxes assessed by and collected on behalf of government authorities from the transaction price allocated to the performance obligation. Sterling has historically excluded such amounts from its revenues and will continue to do so under the new revenue standard. See Note 3 for additional discussion of Sterling's revenue recognition accounting policies and expanded disclosures required by the new standard. Recently Issued Accounting Pronouncements In February 2016, the FASB issued its new lease accounting guidance in ASU No. 2016-2, “Leases” (Topic 842). Under the new guidance, lessees will be required to recognize for all leases (with the exception of short-term leases) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis, and a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. The standard is effective for the interim and annual reporting periods beginning after December 15, 2018. ASU 2016-02 allows companies to adopt the new standard by either applying a modified retrospective method to the beginning of the earliest period presented in the financial statements or an optional transition method to initially apply the standard on January 1, 2019 and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. The Company expects to adopt the standard using the optional transition method and apply the new guidance prospectively to leases that exist and those entered into on or after January 1, 2019 without adjusting comparative periods in the financial statements. The Company intends to make an accounting policy election to forgo applying Topic 842 to leases with a term of 12 or fewer months. The Company is currently evaluating the impact of adopting this ASU on its consolidated financial statements, including available practical expedients, but expects the adoption to result in a material increase to its assets and liabilities. The Company does not expect this ASU to have a material impact on its consolidated statements of income or cash flows.

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