| Business, Basis of Presentation and Significant Accounting Policies | Business, Basis of Presentation and Significant Accounting Policies Infrastructure and Energy Alternatives, Inc. (f/k/a M III Acquisition Corporation (“M III”)), a Delaware corporation, is a holding company organized on August 4, 2015 (together with its wholly-owned subsidiaries, “IEA” or the “Company”). The Company specializes in providing complete engineering, procurement and construction (“EPC”) services throughout the United States (“U.S.”) for the renewable energy, traditional power and civil infrastructure industries. These services include the design, site development, construction, installation and restoration of infrastructure. Although the Company has historically focused on the wind industry, its 2018 acquisitions expanded its construction capabilities and geographic footprint in the areas of renewables, environmental remediation, industrial maintenance, specialty paving, heavy civil and rail infrastructure construction, creating a diverse national platform of specialty construction capabilities. Acquisitions On March 26, 2018 (the “Closing Date”), the Company consummated a merger (the “Merger”) pursuant to an Agreement and Plan of Merger, dated November 3, 2017 (as amended, the “Merger Agreement”), by and among M III, IEA Energy Services, LLC (“IEA Services”), a Delaware limited liability company, Infrastructure and Energy Alternatives, LLC (the “Seller”), a Delaware limited liability company and the parent of IEA Services immediately prior to such time, and the other parties thereto, which provided for, among other things, the merger of IEA Services with and into a wholly-owned subsidiary of M III. Following the Merger, M III Acquisition Corporation changed its name to Infrastructure and Energy Alternatives, Inc. See Note 2. Merger and Acquisitions for more information about the Merger. On September 25, 2018, IEA Services completed its acquisition of Consolidated Construction Solutions I LLC (“CCS”), provide EPC services, through its wholly-owned subsidiaries, Saiia LLC (“Saiia”) and American Civil Constructors LLC (the “ACC Companies”) for environmental, heavy civil and mining projects. On November 2, 2018, IEA Services completed its acquisition of William Charles Construction Group, including its wholly-owned subsidiary Ragnar Benson (“William Charles”), a provider of engineering and construction solutions for the rail infrastructure and heavy civil construction industries. See Note 2. Merger and Acquisitions for further discussion of these acquisitions. Principles of Consolidation The accompanying consolidated financial statements include the accounts of Infrastructure and Energy Alternatives, Inc. and its wholly-owned direct and indirect domestic and foreign subsidiaries: IEA Intermediate Holdco, LLC (“Holdings”), IEA Services, IEA Management Services, Inc., IEA Constructors, LLC (f/k/a IEA Renewable, Inc.), White Construction, LLC (“White”), Bianci Electrical, LLC (f/k/a White Electrical Constructors, Inc.), IEA Equipment Management, Inc., White’s wholly-owned subsidiary H.B. White Canada Corp. (“H.B. White”), and from their dates of acquisition in 2018, CCS and William Charles. All intercompany accounts and transactions are eliminated in consolidation. Reportable Segments We segregate our business into two reportable segment: the Renewables (“Renewables”) segment and the Heavy Civil and Industrial (“Specialty Civil”) segment. See Note 14. Segments for a description of the reportable segments and their operations. Operations prior to the Merger are the historical operations of IEA Services as discussed in Note 2. Merger and Acquisitions . Basis of Accounting and Use of Estimates The accompanying consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the U.S. (“GAAP”). The preparation of the consolidated financial statements in conformity with GAAP requires the use of estimates and assumptions that affect the amounts reported in the consolidated financial statements and the accompanying notes. Key estimates include: the recognition of revenue and project profit or loss ; fair value estimates, including those related to acquisitions and contingent consideration; valuations of goodwill and intangible assets; asset lives used in computing depreciation and amortization; accrued self-insured claims; other reserves and accruals; accounting for income taxes; and the estimated impact of contingencies and ongoing litigation. While management believes that such estimates are reasonable when considered in conjunction with the Company’s consolidated financial position and results of operations, actual results could differ materially from those estimates. “Emerging Growth Company” As of December 31, 2019, the Company's total annual gross revenues exceed $1.07 billion and we no longer qualify as an “emerging growth company,” as defined in the Jumpstart Our Business Startups Act (the “JOBS Act”). Therefore, we are now subject to certain requirements that apply to other public companies, but did not previously apply to us due to our status as an emerging growth company. These requirements include but are not limited to: • compliance with the auditor attestation requirement in the assessment of our internal control over financial reporting pursuant to Section 404 of Sarbanes-Oxley Act; • compliance with any new rules that may be adopted by the Public Company Accounting Oversight Board; • compliance with any new or revised financial accounting standards applicable to public companies without an extended transition period. See below for further discussion of financial accounting standards adopted in the current year; • full disclosure regarding executive compensation required of larger public companies; and • compliance with the requirement of holding a nonbinding advisory vote on executive compensation and obtaining shareholder approval of any golden parachute payments not previously approved. Cash and Cash Equivalents The Company considers all unrestricted, highly liquid investments with a maturity of three months or less when purchased to be cash and cash equivalents. The Company maintains cash balances, which, at times, may exceed the amounts insured by the Federal Deposit Insurance Corporation. Accounts Receivable The Company does not accrue interest to its customers and carries its customer receivables at their face amounts, less an allowance for doubtful accounts. Accounts receivable and contract assets include amounts billed to customers under the terms and provisions of the contracts. Most billings are determined based on contractual terms. As is common practice in the industry, the Company classifies all accounts receivable and contract assets, including retainage, as current assets. The contracting cycle for certain long-term contracts may extend beyond one year, and accordingly, collection of retainage on those contracts may extend beyond one year. Contract assets include amounts billed to customers under retention provisions in construction contracts. Such provisions are standard in the Company’s industry and usually allow for a small portion of progress billings on the contract price, typically 10%, to be withheld by the customer until after the Company has completed work on the project. Based on the Company’s experience with similar contracts in recent years, billings for such retention balances at each balance sheet date are finalized and collected after project completion. Generally, unbilled amounts will be billed and collected within one year. The Company determined that there are no material amounts due past one year and no material amounts billed but not expected to be collected within one year. The Company grants trade credit, on a non-collateralized basis, to its customers and is subject to potential credit risk related to changes in business and overall economic activity. The Company analyzes specific accounts receivable and contract assets balances, historical bad debts, customer credit-worthiness, current economic trends and changes in customer payment terms when evaluating the adequacy of the allowance for doubtful accounts. In the event that a customer balance is deemed to be uncollectible, the account balance is written off against the allowance for doubtful accounts. Activity in the allowance for doubtful accounts for the periods indicated was as follows: Year Ended December 31, (in thousands) 2019 2018 2017 Allowance for doubtful accounts at beginning of period $ 42 $ 216 $ 135 Plus: provision for (reduction in) allowance 33 (174 ) 81 Less: write-offs, net of recoveries — — — Allowance for doubtful accounts at period-end $ 75 $ 42 $ 216 Revenue Recognition The Company adopted the requirements of Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers, which is also referred to as Accounting Standards Codification (“ASC”) Topic 606, under the modified retrospective transition approach effective January 1, 2019, with application to all existing contracts that were not substantially completed as of January 1, 2019. The impacts of adoption on the Company’s opening balance sheet were primarily related to variable consideration on unapproved change orders. The prior year comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods; however, certain balances have been reclassified to conform to the current year presentation. The effect of the changes made to the Company’s consolidated January 1, 2019 balance sheet for the adoption of ASC Topic 606 were as follows: Balance Sheet (in thousands) Balance as of December 31, 2018 (a) Adjustment due to Topic 606 (b) Balance as of December 31, 2018 ASC 606 Cumulative Effect Adjustment Balance as of January 1, 2019 Assets Accounts receivable, net (b) 225,366 (64,000 ) 161,366 — 161,366 Costs and estimated earnings in excess of billings on uncompleted contracts 47,121 (47,121 ) — — — Contract assets (b) — 111,121 111,121 961 112,082 Deferred income taxes 11,215 — 11,215 (279 ) 10,936 Liabilities Billings in excess of costs and estimated earnings on uncompleted contracts 62,234 (62,234 ) — — — Contract liabilities (b) — 62,234 62,234 (68 ) 62,166 Equity Accumulated deficit (135,931 ) — (135,931 ) 750 (135,181 ) (a) Balances as previously reported on the Company’s Annual Report on Form 10-K for the year ended December 31, 2018. (b) Prior to the adoption of Topic 606, retainage receivable balances were included within accounts receivable. Prior year’s retainage receivables balance has been reclassified to contract assets to conform to the current year presentation. Under Topic 606, revenue is recognized when control of promised goods and services is transferred to customers, and the amount of revenue recognized reflects the consideration to which an entity expects to be entitled in exchange for the goods and services transferred. Revenue is recognized by the Company primarily over time utilizing the cost-to-cost measure of progress for fixed price, time and materials and other service contracts, consistent with the Company’s previous revenue recognition practices. The adoption of Topic 606 did not have a material effect on the Company's consolidated financial statements; related to revenues, contract assets/liabilities, deferred taxes and net loss as compared with the Company’s previous revenue recognition practices under ASC Topic 605. Contracts The Company derives revenue primarily from construction projects performed under contracts for specific projects requiring the construction and installation of an entire infrastructure system or specified units within an infrastructure system, which are subject to multiple pricing options, including fixed price, time and materials, or unit price with a breakdown shown below. Renewable energy projects are performed for private customers while our specialty civil projects are performed for a mix of public and private customers. Revenue derived from projects billed on a fixed-price basis totaled 94.8% , 96.2% and 97.8% of consolidated revenue from continuing operations for the years ended December 31, 2019, 2018 and 2017 , respectively. Revenue and related costs for construction contracts billed on a time and materials basis are recognized as the services are rendered. Revenue derived from projects billed on a time and materials basis totaled 5.2% , 3.8% and 2.2% of consolidated revenue from continuing operations for the years ended December 31, 2019, 2018 and 2017 , respectively. Revenue from construction contracts is recognized over time using the cost-to-cost measure of progress. For these contracts, the cost-to-cost measure of progress best depicts the continuous transfer of control of goods or services to the customer. Such contracts provide that the customer accept completion of progress to date and compensate the Company for services rendered. Contract costs include all direct materials, labor and subcontracted costs, as well as indirect costs related to contract performance, such as indirect labor, supplies, tools, repairs and the operational costs of capital equipment. The cost estimation and review process for recognizing revenue over time under the cost-to-cost method is based on the professional knowledge and experience of the Company’s project managers, engineers and financial professionals. Management reviews estimates of total contract transaction price and total project costs on an ongoing basis. Changes in job performance, job conditions and management’s assessment of expected variable consideration are factors that influence estimates of the total contract transaction price, total costs to complete those contracts and profit recognition. Changes in these factors could result in revisions to revenue and costs of revenue in the period in which the revisions are determined on a prospective basis, which could materially affect the Company’s consolidated results of operations for that period. Provisions for losses on uncompleted contracts are recorded in the period in which such losses are determined. Performance Obligations A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of account under Topic 606. The transaction price of a contract is allocated to each distinct performance obligation and recognized as revenue when or as the performance obligation is satisfied. The Company’s contracts often require significant integrated services, and even when delivering multiple distinct services, are generally accounted for as a single performance obligation. Contract amendments and change orders are generally not distinct from the existing contract due to the significant integrated service provided in the context of the contract, and are accounted for as a modification of the existing contract and performance obligation. The majority of the Company’s performance obligations are completed within one year with the exception of certain specialty civil service contracts. When more than one contract is entered into with a customer on or close to the same date, the Company evaluates whether those contracts should be combined and accounted for as a single contract as well as whether those contracts should be accounted for as more than one performance obligation. This evaluation requires significant judgment and is based on the facts and circumstances of the various contracts, which could change the amount of revenue and profit recognition in a given period depending upon the outcome of the evaluation. Remaining performance obligations represent the amount of unearned transaction prices for fixed price contracts and open purchase orders for which work is wholly or partially unperformed. As of December 31, 2019, the amount of the Company’s remaining performance obligations was $1,315.2 million . The Company expects to recognize approximately 85.5% of its remaining performance obligations as revenue in 2020, with the remainder recognized primarily in 2021. Variable Consideration Transaction pricing for the Company’s contracts may include variable consideration, which is comprised of items such as change orders, claims, incentives and liquidated damages. Management estimates variable consideration for a performance obligation utilizing estimation methods that best predict the amount of consideration to which the Company will be entitled. Variable consideration is included in the estimated transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is resolved. Management’s estimates of variable consideration and determination of whether to include estimated amounts in transaction price are based largely on engineering studies and legal opinions, past practices with the customer, specific discussions, correspondence or preliminary negotiations with the customer and all other relevant information that is reasonably available. The effect of variable consideration on the transaction price of a performance obligation is typically recognized as an adjustment to revenue on a cumulative catch-up basis. To the extent unapproved change orders, claims and liquidated damages reflected in transaction price are not resolved in the Company’s favor, or to the extent incentives reflected in transaction price are not earned, there could be reductions in, or reversals of, previously recognized revenue. As of December 31, 2019 and 2018, the Company included approximately $73.3 million and $45.0 million , respectively, of unapproved change orders and/or claims in the transaction price for certain contracts that were in the process of being resolved in the normal course of business, including through negotiation, arbitration and other proceedings. These transaction price adjustments are included within Contract Assets or Contract Liabilities as appropriate. The Company actively engages with its customers to complete the final approval process, and generally expects these processes to be completed within one year. Amounts ultimately realized upon final acceptance by customers could be higher or lower than such estimated amounts. Disaggregation of Revenue The following tables disaggregate revenue by contract type, which the Company believes best depicts how the nature, amount, timing and uncertainty of its revenue and cash flows are affected by economic factors for the year ended December 31, 2019: (in thousands) December 31, 2019 Renewables Wind 830,653 Solar 3,376 $ 834,029 Specialty Civil Heavy civil 351,476 Rail 174,332 Environmental 99,926 $ 625,734 The Company had the following approximate revenue and accounts receivable concentrations, net of allowances, for the periods ended: Revenue % Accounts Receivable % Year Ended December 31, December 31, 2019 2018 2017 2019 2018 Company A (Renewables Segment) * 21.0 % * * 20.0 % Company B (Specialty Civil Segment) 10.9 % * * * 19.0 % Company C (Renewables Segment) * * 21.0 % * * Company D (Renewables Segment) * * 11.0 % * * Company E (Renewables Segment) * * 11.0 % * * Company F (Renewables Segment) * * 14.0 % * * ——— * Amount was not above 10% threshold. Self-Insurance The Company is self-insured up to the amount of its deductible for its medical and workers’ compensation insurance policies. For the years ended December 31, 2019, 2018 and 2017 , the Company maintained insurance policies subject to per claim deductibles of $0.5 million , for its workers' compensation policy. Liabilities under these insurance programs are accrued based upon management’s estimates of the ultimate liability for claims reported and an estimate of claims incurred but not reported with assistance from third-party actuaries. The Company’s liability for employee group medical claims is based on analysis of historical claims experience and specific knowledge of actual losses that have occurred. The Company is also required to post letters of credit and provide cash collateral to certain of its insurance carriers and to obtain surety bonds in certain states. The Company’s self-insurance liability is reflected in the consolidated balance sheets within accrued liabilities. The determination of such claims and expenses and the appropriateness of the related liability is reviewed and updated quarterly, however, these insurance liabilities are difficult to assess and estimate due to unknown factors, including the severity of an injury, the determination of the Company’s liability in proportion to other parties and the number of incidents not reported. Accruals are based upon known facts and historical trends. Although management believes its accruals are adequate, a change in experience or actuarial assumptions could materially affect the Company’s results of operations in a particular period. As of December 31, 2019 and 2018 , the gross amount accrued for medical insurance claims totaled $0.7 million and $0.6 million , respectively, and the gross amount accrued for workers’ compensation claims totaled $3.2 million and $2.1 million , respectively. For the years ended December 31, 2019, 2018 and 2017 , health care expense totaled $5.9 million , $2.4 million and $1.1 million , respectively, and workers' compensation expense totaled $9.1 million , $5.8 million and $3.4 million , respectively. Company-Owned Life Insurance The Company has life insurance policies on certain key executives. Company-owned life insurance is recorded at its cash surrender value or the amount that can be realized. As of December 31, 2019 and 2018 , the Company had a long-term asset of $4.8 million and $3.9 million , respectively, related to these policies. For the years ended December 31, 2019, 2018 and 2017 , the Company recognized an increase of $0.9 million , a decrease of $0.4 million and an increase of $2.0 million , respectively, in the cash surrender value of these policies. Leases In the ordinary course of business, the Company enters into agreements that provide financing for machinery and equipment and for other of its facility, vehicle and equipment needs. The Company reviews all arrangements for potential leases, and at inception, determines whether a lease is an operating or finance lease. Lease assets and liabilities, which generally represent the present value of future minimum lease payments over the term of the lease, are recognized as of the commencement date. Leases with an initial lease term of twelve months or less are classified as short-term leases and are not recognized in the consolidated balance sheets unless the lease contains a purchase option that is reasonably certain to be exercised. Lease term, discount rate, variable lease costs and future minimum lease payment determinations require the use of judgment, and are based on the facts and circumstances related to the specific lease. Lease terms are generally based on their initial non-cancelable terms, unless there is a renewal option that is reasonably certain to be exercised. Various factors, including economic incentives, intent, past history and business need are considered to determine if a renewal option is reasonably certain to be exercised. The implicit rate in a lease agreement is used when it can be determined. Otherwise, the incremental borrowing rate, which is based on information available as of the lease commencement date, including applicable lease terms and the current economic environment, is used to determine the value of the lease obligation. Property, Plant and Equipment, Net Property, plant and equipment is recorded at cost, or if acquired in a business combination, at the acquisition-date fair value, less accumulated depreciation. Depreciation of property, plant and equipment, including property and equipment under capital leases, is computed using the straight-line method over the estimated useful lives of the respective assets. Leasehold improvements are depreciated over the shorter of the term of the lease or the estimated useful lives of the improvements. Expenditures for repairs and maintenance are charged to expense as incurred, and expenditures for betterments and major improvements are capitalized and depreciated over the remaining useful lives of the assets. The carrying amounts of assets sold or retired and the related accumulated depreciation are eliminated in the year of disposal, with resulting gains or losses included in other income or expense. The assets’ estimated lives used in computing depreciation for property, plant and equipment are as follows: Buildings and leasehold improvements 2 to 39 years Construction equipment 3 to 15 years Office equipment, furniture and fixtures 3 to 7 years Vehicles 3 to 5 years Intangible Assets, Net The Company's intangible assets represent finite-lived assets that were acquired in a business combination, consisting of customer relationships, trade names and backlog, and are recorded at acquisition-date fair value, less accumulated amortization. These assets are amortized over their estimated lives, which are generally based on contractual or legal rights. Amortization of customer relationship and trade name intangibles is recorded within selling, general and administrative expenses in the consolidated statements of operations, and amortization of backlog intangibles is recorded within cost of revenue. The straight-line method of amortization is used because it best reflects the pattern in which the economic benefits of the intangibles are consumed or otherwise used up. The amounts and useful lives assigned to intangible assets acquired impact the amount and timing of future amortization. Impairment of Property, Plant and Equipment and Intangibles Management reviews long-lived assets that are held and used for impairment whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable. If an evaluation is required, the estimated future undiscounted cash flows associated with the asset are compared with the asset’s carrying amount to determine if there has been an impairment, which is calculated as the difference between the fair value of an asset and its carrying value. Estimates of future undiscounted cash flows are based on expected growth rates for the business, anticipated future economic conditions and estimates of residual values. Fair values take into consideration management’s estimates of risk-adjusted discount rates, which are believed to be consistent with assumptions that marketplace participants would use in their estimates of fair value. There were no impairments of property, plant and equipment or intangible assets recognized during the years ended December 31, 2019, 2018 and 2017 . Goodwill Goodwill represents the excess purchase price paid over the fair value of acquired intangible and tangible assets. Goodwill is not amortized but rather is assessed at least annually for impairment on October 1st and tested for impairment more frequently if events and circumstances indicate that the asset might be impaired. The Company may assess its goodwill for impairment initially using a qualitative approach to determine whether conditions exist to indicate that it is more likely than not that the fair value of a reporting unit is less than its carrying value. If management concludes, based on its assessment of relevant events, facts and circumstances, that it is more likely than not that a reporting unit’s carrying value is greater than its fair value, then a quantitative analysis will be performed to determine if there is any impairment. The quantitative assessment for goodwill requires the Company to compare the carrying value of a reporting unit, including goodwill, to its fair value using the income approach. The income approach uses a discounted cash flow model, which involves significant estimates and assumptions including preparation of revenue and profitability growth forecasts, selection of a discount rate and selection of a terminal year multiple. If the fair value of the respective reporting unit exceeds its carrying amount, goodwill is not considered to be impaired. If the carrying amount of a reporting unit exceeds its fair value, the Company would record an impairment charge equal to the difference, not to exceed the carrying amount of goodwill. In our Specialty Civil segment, we valued these reporting units using the income approach based on their expected future cash flows. The critical assumptions that factored into the valuations are the projected future revenues and operating EBITDA margins of the business, their terminal growth rates, as well as the discount rate used to present value the future cash flows. While none of our reporting units recorded a goodwill impairment in 2019, we determined that the CCS Reporting Unit is our only reporting unit where the estimated fair value does not substantially exceed the carrying value. The estimated fair value of the reporting unit exceeds its carrying amount by approximately 2.8% . Total goodwill in this reporting unit is $29.8 million . The goodwill in this reporting unit is primarily attributable to the acquisition of CCS at fair value late in fiscal 2018. As a result, we did not expect the estimated fair value would exceed the carrying value by a significant amount. Business Combinations The Company accounts for its business combinations by recognizing and measuring in its financial statements the identifiable assets acquired, the liabilities assumed and any non-controlling interests (if applicable) in the acquiree at the acquisition date. Purchase are accounted for using the acquisition method, and the fair value of purchase consideration is allocated to the tangible and intangible assets acquired and the liabilities assumed based on their estimated fair values. The excess, if any, of the fair value of the purchase consideration over the fair value of the identifiable net assets is recorded as goodwill. Conversely, the excess, if any, of the net fair values of the identifiable net assets over the fair value of the purchase consideration is recorded as a gain. The fair values of net assets acquired are calculated using expected cash flows and industry-standard valuation techniques, and these valuations require management to make significant estimates and assumptions. These estimates and assumptions are inherently uncertain, and as a result, actual results may materially differ from estimates. Significant estimates include, but are not limited to, future expected cash flows, useful lives and discount rates. During the measurement period, which is one year from the acquisition date, the Company may record adjustments to the assets acquired and liabilities assumed, with a corresponding offset to either goodwill or gain, depending on whether the fair value of purchase consideration is in excess of or less than net assets acquired. Upon the conclusion of the measurement period, any subsequent adjustments are recorded to earnings. Acquisition costs related to business combinations are expensed as incurred. Contingent Consideration As part of the Merger, the Company agreed to issue additional common shares to the Seller upon satisfaction of financial targets for 2019 and 2018. This contingent liability, which is presented as contingent consideration in the consolidated balance sheets, was measured at its estimated fair value as of the Closing Date using a Monte Carlo simulation and subsequent changes in fair value are recorded within other (expense) income, net in the consolidated statement of operations. See Note 7 . Fair Value of Financial Instruments for further discussion. Debt Issuance Costs Financing costs incurred with securing a term loan or series B preferred stock are deferred and amortized to interest expense, net over the maturity of the respective agreements using the effective interest method and are presented as a direct deduction from the carrying amount of the related debt. Financing costs incurred with securing a revolving line of credit are deferred and amortized to interest expense, net over the contractual term of the arrangement on a straight-line basis and are presented as a direct deduction from the carrying amount of the related debt. Stock-Based Compensation IEA has an equity plan which grants stock options (“Options”) and restricted stock units (“RSUs”) to certain key employees and members of the Board of Directors of the Company (the “Board”) for their services. The Company recognizes compensation expense for these awards in accordance with the provisions of ASC 718, Stock Compensation , which requires the recognition of expense related to |
