10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

þQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE QUARTERLY PERIOD ENDED September 30, 2019

OR

¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

COMMISSION FILE NUMBER: 001-37796

Infrastructure and Energy Alternatives, Inc.

(Exact Name of Registrant as Specified in Charter)

Delaware	47-4787177
(State or Other Jurisdiction of Incorporation)	(IRS Employer Identification No.)

6325 Digital Way Suite 460 Indianapolis, Indiana	46278
(Address of Principal Executive Offices)	(Zip Code)

Registrant’s telephone number, including area code: (765) 828-2580

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbols(s)	Name of exchange on which registered
Common Stock, $0.0001 par value	IEA	The NASDAQ Stock Market LLC

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past ninety days.þ Yes ¨ No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). þ Yes¨ No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act:

Large accelerated filer¨ Accelerated filer þ Non-accelerated filer ¨ Smaller reporting company þ Emerging growth company þ

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). ¨ Yes þ No

Number of shares of Common Stock outstanding as of the close of business on November 12, 2019: 22,252,489.

	Infrastructure and Energy Alternatives, Inc.
	Table of Contents
	PART I. FINANCIAL INFORMATION
Item 1	Financial Statements (unaudited)
	Condensed Consolidated Balance Sheets as of September 30, 2019 and December 31, 2018	1
	Condensed Consolidated Statements of Operations and Comprehensive Income for the three and nine months ended September 30, 2019 and 2018	2
	Condensed Consolidated Statements of Stockholders' Equity for the three and nine months ended September 30, 2019 and 2018	3
	Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2019 and 2018	4
	Notes to Condensed Consolidated Financial Statements	6
Item 2	Management's Discussion and Analysis of Financial Condition and Results of Operations	24
Item 3	Quantitative and Qualitative Disclosures About Market Risk	39
Item 4	Controls and Procedures	40
	Part II. OTHER INFORMATION
Item 1A	Risk Factors	41
Item 3	Defaults Upon Senior Securities	46
Item 6	Exhibits	47

PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

INFRASTRUCTURE AND ENERGY ALTERNATIVES, INC.

Condensed Consolidated Balance Sheets

($ in thousands, except per share data)

(Unaudited)

	September 30, 2019			December 31, 2018
Assets
Current assets:
Cash and cash equivalents	43,174			71,311
Accounts receivable, net	244,465			225,366
Costs and estimated earnings in excess of billings on uncompleted contracts	109,540			47,121
Prepaid expenses and other current assets	18,533			12,864
Total current assets	415,712			356,662
Property, plant and equipment, net	151,784			176,178
Goodwill	37,373			40,257
Intangibles	40,626			50,874
Company-owned life insurance	3,935			3,854
Other assets	550			188
Deferred income taxes	15,847			11,215
Total assets	$	665,827		$	639,228
Liabilities and Stockholder's Equity (Deficit)
Current liabilities:
Accounts payable	126,484			158,075
Accrued liabilities	131,170			94,059
Billings in excess of costs and estimated earnings on uncompleted contracts	71,814			62,234
Current portion of capital lease obligations	24,640			17,615
Current portion of long-term debt	31,119			32,580
Total current liabilities	385,227			364,563
Capital lease obligations, net of current maturities	49,268			45,912
Long-term debt, less current portion	226,606			295,727
Debt - Series B Preferred Stock	76,766			—
Series B Preferred Stock - warrant obligations	4,223			—
Deferred compensation	8,077			6,157
Contingent consideration	—			23,082
Total liabilities	$	750,167		$	735,441
Commitments and contingencies:
Series A Preferred Stock, par value, $0.0001 per share; 1,000,000 shares authorized; 34,965 shares and 34,965 shares issued and outstanding at September 30, 2019 and December 31, 2018, respectively	34,965			34,965
Stockholders' equity (deficit):
Common stock, par value, $0.0001 per share; 100,000,000 shares authorized; 20,460,533 and 22,155,271 shares issued and 20,446,811 and 22,155,271 outstanding at September 30, 2019 and December 31, 2018, respectively	2			2
Treasury stock, 13,722 shares at cost	(76		)	—
Additional paid in capital	18,018			4,751
Retained earnings (deficit)	(137,249		)	(135,931		)
Total stockholders' equity (deficit)	(119,305		)	(131,178		)
Total liabilities and stockholders' equity (deficit)	$	665,827		$	639,228

See accompanying notes to condensed consolidated financial statements.

1

INFRASTRUCTURE AND ENERGY ALTERNATIVES, INC.

Condensed Consolidated Statement of Operations

($ in thousands, except per share data)

(Unaudited)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2019			2018			2019			2018
Revenue	$	422,022		$	279,279		$	940,793		$	503,487
Cost of revenue	369,152			252,271			849,728			462,765
Gross profit	52,870			27,008			91,065			40,722
Selling, general and administrative expenses	31,313			16,964			84,945			43,122
Income (loss) from operations	21,557			10,044			6,120			(2,400		)
Other income (expense), net:
Interest expense, net	(13,959		)	(1,579		)	(35,822		)	(3,960		)
Other income (expense)	4,455			(1,859		)	22,557			(1,848		)
Income (loss) before benefit for income taxes	12,053			6,606			(7,145		)	(8,208		)
Benefit (provision) for income taxes	556			(870		)	3,073			1,467
Net income (loss)	$	12,609		$	5,736		$	(4,072	)	$	(6,741	)
Net income (loss) per common share - basic	0.37			0.24			(1.44		)	(0.36		)
Net income (loss) per common share - diluted	0.24			0.23			(1.44		)	(0.36		)
Weighted average shares - basic	20,446,811			21,577,650			20,425,801			21,577,650
Weighted average shares - diluted	35,419,432			25,100,088			20,425,801			21,577,650

See accompanying notes to condensed consolidated financial statements.

2

INFRASTRUCTURE AND ENERGY ALTERNATIVES, INC.

Condensed Consolidated Statements of Stockholders' Equity (Deficit)

($ in thousands)

(Unaudited)

	Common Stock				Additional Paid-in Capital			Treasury Stock					Accumulated Deficit			Total Equity (Deficit)
	Shares		Par Value					Shares		Cost
Balance at December 31, 2017	21,578		2		—			—		—			(10,021		)	(10,019		)
Net loss													(17,392		)	(17,392		)
Issuance of Series A Preferred stock													(34,965		)	(34,965		)
Contingent consideration													(69,373		)	(69,373		)
Merger recapitalization transaction													(22,973		)	(22,973		)
Balance at March 31, 2018	21,578		$	2	$	—		—		$	—		$	(154,724	)	$	(154,722	)
Net income													4,915			4,915
Merger recapitalization transaction													(2,843		)	(2,843		)
Preferred dividends													(548		)	(548		)
Balance at June 30, 2018	21,578		$	2	$	—		—		$	—		$	(153,200	)	$	(153,198	)
Net income													5,736			5,736
Share-based compensation					500											500
Preferred dividends													(524		)	(524		)
Balance at September 30, 2018	21,578		$	2	$	500		—		$	—		$	(147,988	)	$	(147,486	)
Balance at December 31, 2018	22,155		2		4,751			—		—			(135,931		)	(131,178		)
Net loss													(22,889		)	(22,889		)
Share-based compensation					1,040											1,040
Share-based payment transaction	111		—		235			(14	)	(76		)				159
Merger recapitalization transaction													2,754			2,754
Preferred dividends					(525		)									(525		)
Balance at March 31, 2019	22,266		$	2	$	5,501		(14	)	$	(76	)	$	(156,066	)	$	(150,639	)
Net income													6,208			6,208
Share-based compensation					720											720
Series B Preferred Stock - Warrants at close					9,422											9,422
Preferred dividends					(918		)									(918		)
Balance at June 30, 2019	22,266		$	2	$	14,725		(14	)	$	(76	)	$	(149,858	)	$	(135,207	)
Net income													12,609			12,609
Removal of Earnout Shares (See Note 1)	(1,805	)	—													—
Share-based compensation					1,052											1,052
Series B Preferred Stock - Warrants at close					3,000											3,000
Preferred dividends					(759		)									(759		)
Balance at September 30, 2019	20,461		$	2	$	18,018		(14	)	$	(76	)	$	(137,249	)	$	(119,305	)

See accompanying notes to condensed consolidated financial statements.

3

INFRASTRUCTURE AND ENERGY ALTERNATIVES, INC.

Condensed Consolidated Statements of Cash Flows

($ in thousands)

(Unaudited)

	Nine Months Ended September 30,
	2019			2018
Cash flows from operating activities:
Net loss	$	(4,072	)	$	(6,741	)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	36,373			6,591
Contingent consideration fair value adjustment	(23,082		)	—
Amortization of debt discounts and issuance costs	3,765			357
Share-based compensation expense	2,812			500
(Gain) loss on sale of equipment	743			28
Deferred compensation	1,494			313
Accrued dividends on Series B Preferred Stock	4,135			—
Deferred income taxes	(3,073		)	(577		)
Change in operating assets and liabilities:
Accounts receivable	(19,108		)	(72,895		)
Costs and estimated earnings in excess of billings on uncompleted contracts	(62,419		)	(46,030		)
Prepaid expenses and other assets	(5,938		)	(1,489		)
Accounts payable and accrued liabilities	3,317			131,682
Billings in excess of costs and estimated earnings on uncompleted contracts	9,580			19,896
Net cash provided by (used in) operating activities	(55,473		)	31,635
Cash flow from investing activities:
Company-owned life insurance	(81		)	(156		)
Purchases of property, plant and equipment	(5,599		)	(2,445		)
Proceeds from sale of property, plant and equipment	7,266			40
Acquisition of business, net of cash acquired	—			(106,579		)
Net cash provided by (used in) investing activities	1,586			(109,140		)
Cash flows from financing activities:
Proceeds from long-term debt	50,400			381,272
Payments on long-term debt	(121,215		)	(139,501		)
Payments on line of credit - short term	—			(38,447		)
Extinguishment of debt	—			(51,762		)
Debt financing fees	(14,738		)	(12,675		)
Payments on capital lease obligations	(15,953		)	(4,284		)
Sale-leaseback transaction	24,343			—
Preferred dividends	—			(548		)
Proceeds from issuance of stock - Series B Preferred Stock	100,000			—
Proceeds from stock-based awards, net	159			—
Merger recapitalization transaction	2,754			(25,816		)
Net cash provided by (used in) financing activities	25,750			108,239
Net change in cash and cash equivalents	(28,137		)	30,734
Cash and cash equivalents, beginning of the period	71,311			4,877
Cash and cash equivalents, end of the period	$	43,174		$	35,611

See accompanying notes to condensed consolidated financial statements.

4

INFRASTRUCTURE AND ENERGY ALTERNATIVES, INC.

Condensed Consolidated Statements of Cash Flows

($ in thousands)

(Unaudited)

(Continued)

	Nine Months Ended September 30,
	2019	2018
Supplemental disclosures:
Cash paid for interest	28,240	3,622
Cash paid for income taxes	250	649
Schedule of non-cash activities:
Acquisition of assets/liabilities through capital lease	1,992	12,133
Acquisition-related contingent consideration, new business combinations	—	69,373
Issuance of common shares	—	90,282
Issuance of preferred shares	—	34,965
Preferred dividends declared	2,202	524

5

INFRASTRUCTURE AND ENERGY ALTERNATIVES, INC.

Notes to the Condensed Consolidated Financial Statements

(unaudited)

Note 1. Business, Basis of Presentation and Significant Accounting Policies

Infrastructure and Energy Alternatives, Inc., 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 recent acquisitions have expanded its construction capabilities and geographic footprint in the areas of renewables, environmental remediation, industrial maintenance, specialty paving and heavy civil and rail infrastructure construction, creating a diverse national platform of specialty construction capabilities.

Principles of Consolidation

The accompanying condensed unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and with the instructions for Quarterly Reports on Form 10-Q and Rule 10-01 of Regulation S-X. Pursuant to these rules and regulations, certain information and footnote disclosures normally included in the annual audited consolidated financial statements prepared in accordance with GAAP have been condensed or omitted.

The condensed unaudited consolidated financial statements include the accounts of IEA and its wholly-owned direct and indirect domestic and foreign subsidiaries and in the opinion of management, these financial statements reflect all adjustments (consisting of normal recurring adjustments) that are necessary to present fairly the results of operations for the interim periods presented. The results of operations for the nine months ended September 30, 2019 are not necessarily indicative of the results that may be expected for the year ending December 31, 2019. These financial statements should be read in conjunction with the Company’s audited consolidated financial statements for the year ended December 31, 2018 and notes thereto included in the Company’s 2018 Annual Report on Form 10-K.

Reportable Segments

We segregate our business into two reportable segments: the Renewables (“Renewables”) segment and the Heavy Civil and Industrial (“Specialty Civil”) segment. See Note 13. Segments for a description of the reportable segments and their operations.

Basis of Accounting and Use of Estimates

The accompanying consolidated financial statements have been prepared in accordance with GAAP. The preparation of the condensed consolidated financial statements in conformity with GAAP requires the use of estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and the accompanying notes. Key estimates include: the recognition of project revenue and profit or loss (which the Company defines as project revenue less project costs of revenue), in particular, on construction contracts accounted for under the percentage-of completion method, for which the recorded amounts require estimates of costs to complete projects, ultimate project profit and the amount of probable contract price adjustments as inputs; allowances for doubtful accounts; accrued self-insurance reserves; 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” Reporting Requirements:

The Company qualifies as an “emerging growth company,” as defined in the Jumpstart Our Business Startups Act (the “JOBS Act”). For as long as a company is deemed to be an “emerging growth company,” it may take advantage of specified reduced reporting and other regulatory requirements that are generally unavailable to other public companies. Among other things, we are not required to provide an auditor attestation report on the assessment of the internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act of 2002. Section 107 of the JOBS Act also provides that an “emerging growth company” can delay the adoption of certain accounting standards until those standards would otherwise

6

apply to private companies. We have elected to take advantage of this extended transition period. Our financial statements may therefore not be comparable to those of companies that comply with such new or revised accounting standards.

We would cease to be an “emerging growth company” upon the earliest of:

• the last day of the fiscal year following July 6, 2021, the five-year anniversary of the completion of our IPO;

• the last day of the fiscal year in which our total annual gross revenues exceed $1.07 billion;

• the date on which we have, during the previous three-year period, issued more than $1 billion in non-convertible debt

    securities; or

• the date on which we become a “large accelerated filer,” as defined in Rule 12b-2 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), which would occur if the market value of our common stock held by nonaffiliates exceeds $700 million as of the last day of our most recently completed second fiscal quarter.

We continue to monitor our status as an “emerging growth company” and are currently preparing for, and expect to be ready to comply with, the additional reporting and regulatory requirements that will be applicable to us when we cease to qualify as an “emerging growth company.”

Revenue Recognition

Revenue under construction contracts is accounted for under the percentage-of-completion method of accounting. Under the percentage-of-completion method, the Company estimates profit as the difference between total estimated revenue and total estimated cost of a contract and recognizes that profit over the contract term based on costs incurred. Contract costs include all direct materials, labor and subcontracted costs and those indirect costs related to contract performance, such as indirect labor, supplies, tools, repairs, depreciation and the operational costs of capital equipment. The Company also has unit-price contracts that were not significant as of September 30, 2019.

The estimation process for revenue recognized under the percentage-of-completion method is based on the professional knowledge and experience of the Company’s project managers, engineers and financial professionals. Management reviews estimates of contract revenue and costs on an ongoing basis. Changes in job performance, job conditions and management’s assessment of expected contract settlements are factors that influence estimates of total contract value and total costs to complete those contracts and, therefore, the Company’s profit recognition. Changes in these factors may result in revisions to revenue, costs and income, and their effects are recognized in the period in which the revisions are determined, which could materially affect the Company’s results of operations in the period in which such changes are recognized.

Revenue derived from projects billed on a fixed-price basis totaled 98.5% and 99.8% of consolidated revenue from operations for the three months ended September 30, 2019 and 2018, respectively, and totaled 94.1% and 97.4% for the nine months ended September 30, 2019 and 2018, 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 also accounted for under the percentage of completion method totaled 1.5% and 0.2% of consolidated revenue from operations for the three months ended September 30, 2019 and 2018, respectively, and totaled 5.9% and 2.6% for the nine months ended September 30, 2019 and 2018, respectively.

For an approved change order which can be reliably estimated as to price, the anticipated revenues and costs associated with the change order are added to the total contract value and total estimated costs of the project, respectively. When costs are incurred for a) an unapproved change order which is probable to be approved or b) an approved change order which cannot be reliably estimated as to price, the total anticipated costs of the change order are added to both the total contract value and total estimated costs for the project. Once a change order becomes approved and reliably estimable, any margin related to the change order is added to the total contract value of the project. The Company actively engages in substantive meetings with its customers to complete the final approval process and generally expects these processes to be completed within a year. The amounts ultimately realized upon final acceptance by its customers could be higher or lower than such estimated amounts.

Provisions for losses on uncompleted contracts are made in the period in which such losses become evident. The Company may incur costs subject to change orders, whether approved or unapproved by the customer, and/or claims related to certain contracts. Management determines the probability that such costs will be recovered based upon engineering studies and legal opinions, past practices with the customer and specific discussions, correspondence and/or preliminary negotiations with the customer.

7

Classification of Construction Contract-Related Assets and Liabilities

Contract costs include all direct subcontract, material, and labor costs, and those indirect costs related to contract

performance, such as indirect labor, supplies, tools, insurance, repairs, maintenance, communications, and use of Company-owned equipment. Contract revenues are earned and matched with related costs as incurred.

Costs and estimated earnings in excess of billings on uncompleted contracts are presented as a current asset in the accompanying condensed consolidated balance sheets, and billings in excess of costs and estimated earnings on uncompleted contracts are presented as a current liability in the accompanying condensed consolidated balance sheets. The Company’s contracts vary in duration, with the duration of some larger contracts exceeding one year. Consistent with industry practices, the Company includes the amounts realizable and payable under contracts, which may extend beyond one year, in current assets and current liabilities. These contract balances are generally settled within one year.

New Accounting Pronouncements

The effective dates shown in the following pronouncements are based on the Company's current status as an “emerging growth company.”

In May 2014, the Financial Accounting Standards Board ("FASB") issued guidance on the recognition of revenue from contracts with customers. The core principle of the guidance is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration which the company expects to receive in exchange for those goods or services. To achieve this core principle, the guidance provides a five-step analysis of transactions to determine when and how revenue is recognized. The guidance addresses several areas including transfer of control, contracts with multiple performance obligations, and costs to obtain and fulfill contracts. The guidance also requires additional disclosure about the nature, amount, timing, and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. The standard will be effective for our fiscal year 2019 annual financial statements and for interim periods beginning in fiscal year 2020.

The Company has substantially completed its assessment of the potential effects of these ASUs on its consolidated financial statements, business processes, systems and controls.  The Company’s assessment included a detailed review of representative contracts at each of the Company’s segments and a comparison of its historical accounting policies and practices to the new standard. Based on the Company’s review of various types of revenue arrangements, the Company expects to recognize revenue and earnings over time utilizing the cost-to-cost measure of progress for its fixed price contracts and other service agreements, consistent with current practice.  For these contracts, the cost-to-cost measure of progress best depicts the transfer of control of goods or services to the customer under the new standard. The Company has substantially completed its analysis of the information necessary to enable the preparation of the financial statements and related disclosures under the new standard. As part of this analysis, the Company evaluated its information technology capabilities and systems, and does not expect to incur significant information technology costs to modify systems currently in place. The Company will implement targeted changes to its internal reporting processes to facilitate gathering the data needed for reporting and disclosure under the new standard. The Company will also implement updates to its control processes and procedures, as necessary, based on changes resulting from the new standard. The Company does not expect any such updates to materially affect the Company’s internal controls over financial reporting.

The Company anticipates adopting the standard using the modified retrospective transition approach.  Under this approach, the new standard would apply to all new contracts initiated on or after January 1, 2019.  For existing contracts that have remaining obligations as of January 1, 2019, any difference between the recognition criteria in these ASUs and the Company’s current revenue recognition practices would be recognized using a cumulative effect adjustment to the opening balance of retained earnings.  Any potential effect of adoption of these ASUs has not yet been quantified; however, the Company anticipates the adoption will have an impact on both the amount and timing of revenue recognition related to unapproved change orders.  The Company is training its impacted employees in business segments for the implementation of the new standard, and continues developing the disclosures required by the new standard. The Company is also reviewing certain contracts entered into by its business segments subsequent to its initial assessment that are expected to have performance obligations remaining as of January 1, 2019 for any cumulative effect adjustments that may be required upon adoption.

In February 2016, the FASB issued ASU 2016-02,Leases (Topic 842). Under ASU 2016-02, lessees will be required to recognize the following for all leases (with the exception of short-term leases) at the commencement date: 1) a lease liability,

8

which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis, and 2) 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. ASU 2016-02 required entities to adopt the new leases standard using a modified retrospective method and initially apply the related guidance at the beginning of the earliest period presented in the financial statements.  During July 2018, the FASB issued ASU 2018-11, which allows for an additional and optional transition method under which an entity would record a cumulative-effect adjustment at the beginning of the period of adoption. See Note 10. Commitments and Contingencies for additional information about our leases. The Company will early adopt the standard and it will be effective for our fiscal year 2019 annual financial statements and for interim periods beginning in fiscal year 2020. The Company is in the process of implementing leasing software to assist in the integration of the future standard.

In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820), Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement, which eliminates certain disclosure requirements for recurring and non-recurring fair value measurements, such as the amount of and reason for transfers between Level 1 and Level 2 of the fair value hierarchy, and adds new disclosure requirements for Level 3 measurements. ASU 2018-13 is effective for all entities for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, with early adoption permitted for any eliminated or modified disclosures. Certain disclosures per ASU 2018-13 are required to be applied on a retrospective basis and others on a prospective basis. The Company is currently assessing the impact these changes will have on its disclosure requirements for fair value measurement.

Management has evaluated other recently issued accounting pronouncements and does not believe that they will have a significant impact on the financial statements and related disclosures.

Note 2. Acquisitions

Acquisitions

CCS

On September 25, 2018, the Company completed its acquisition of Consolidated Construction Solutions I LLC (“CCS”) for $106.6 million in cash. The Company financed this acquisition through borrowing on its credit facility as discussed in Note 9. Debt. This acquisition is being accounted for as a business combination under the acquisition method of accounting.

The wholly-owned subsidiaries of CCS, Saiia LLC (“Saiia”) and American Civil Constructors LLC (the “ACC Companies”), generally enter into long-term contracts with both government and non-government customers to provide EPC services for environmental, heavy civil and mining projects.

William Charles

On November 2, 2018, the Company acquired William Charles Construction Group, including its wholly-owned subsidiary Ragnar Benson (“William Charles”), for $77.7 million, consisting of $73.2 million in cash and $4.5 million of the Company's common stock (477,621 shares of common stock at $9.45 share price). The Company financed a portion of this acquisition through borrowing on its credit facility as discussed in Note 9. Debt. This acquisition is being accounted for as a business combination under the acquisition method of accounting.

William Charles generally enters into contracts with a mix of government and non-government customers to provide EPC services for rail civil infrastructure, environmental and heavy civil projects. A portion of the non-governmental rail civil infrastructure contracts are longer than a year.

The following table summarizes the amounts recognized for assets acquired and liabilities assumed as of the acquisition dates at fair value. The values for CCS were finalized as of June 30, 2019 and finalized for William Charles as of September 30, 2019.

9

Identifiable assets acquired and liabilities assumed (in thousands)	CCS			William Charles
Cash	$	6,413		$	6,641
Accounts Receivable	58,041			69,740
Costs and estimated earnings in excess of billings on uncompleted contracts	9,512			16,095
Other current assets	1,813			7,999
Property, plant and equipment	59,952			47,899
Intangible assets:
Customer relationships	19,500			7,000
Backlog	8,400			5,500
Tradename	8,900			4,500
Deferred income taxes	(2,361		)	—
Other non-current assets	134			75
Accounts payable and accrued liabilities	(25,219		)	(60,962		)
Billings in excess of costs and estimated earnings on uncompleted contracts	(14,194		)	(14,810		)
Debt, less current portion	(52,257		)	(15,672		)
Capital lease obligations	(1,124		)	—
Other liabilities	(704		)	(907		)
Total identifiable assets	76,806			73,098
Goodwill	29,773			4,581
Total purchase consideration	$	106,579		$	77,679

* - There were no measurement period adjustments for the quarter ended September 30, 2019.

Goodwill is calculated as the excess of the consideration transferred over the net assets recognized and represents the future economic benefits arising from other assets acquired that could not be individually identified and separately recognized. Specifically, the goodwill recorded as part of the acquisitions of CCS and William Charles is related to the expected, specific synergies and other benefits that the Company believes will result from combining the operations of CCS and William Charles with the operations of IEA. This goodwill is deductible for income tax purposes, with the exception of $2.9 million for CCS that is not deductible.

Impact of Acquisitions

The following table summarizes the results of operations included in the Company's condensed consolidated statement of operations for CCS and William Charles from their respective dates of acquisition.

(in thousands)	Three months ended September 30, 2019		Nine months ended September 30, 2019
	CCS	William Charles	CCS	William Charles
Revenue	81,248	84,033	211,117	198,879
Net income (loss)	2,707	7,308	616	7,359
	Three months ended September 30, 2018		Nine months ended September 30, 2018
	CCS	William Charles	CCS	William Charles
Revenue	5,600	—	5,600	—
Net income (loss)	—	—	—	—

The following table provides the supplemental unaudited actual and pro forma total revenue and net income of the combined entity had the acquisition date of CCS and William Charles been the first day of our fiscal year 2018:

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	Three months ended September 30,		Nine months ended September 30,
(in thousands)	Actual 2019	Pro forma 2018	Actual 2019		Pro forma 2018
Revenue	422,022	446,557	940,793		948,543
Net income (loss)	12,609	6,016	(4,072	)	(15,448	)
Net income (loss) per common share:
Basic earnings per share	0.37	0.25	(1.44	)	(0.77	)
Diluted earnings per share	0.24	0.24	(1.44	)	(0.77	)

The amounts in the supplemental unaudited pro forma 2018 results apply the Company's accounting policies and reflect certain adjustments to, among other things, (i) exclude the impact of transaction costs incurred in connection with the acquisitions, (ii) include additional depreciation and amortization that would have been charged assuming the same fair value adjustments to property, plant and equipment and acquired intangibles had been applied on January 1, 2018, and (iii) include additional interest expense that would have been incurred assuming the incremental borrowings the Company incurred to finance the acquisitions had been outstanding on January 1, 2018. Accordingly, these supplemental unaudited pro forma results have been prepared for comparative purposes only and are not intended to be indicative of the results of operations that would have occurred had the acquisitions actually occurred in the prior year period or indicative of the results of operations for any future period. These results do not include any potential operating efficiencies and cost savings.

Note 3. Earnings Per Share

The Company calculates earnings (loss) per share (“EPS”) in accordance with ASC 260, Earnings per Share. Basic EPS is computed by dividing income (loss) available to common stockholders by the weighted average number of common shares of common stock outstanding during the period.

Subsequent to the issuance of the Company's condensed consolidated financial statements for the three and six months ended June 30, 2019, the Company identified a computational error related to the number of outstanding common shares included in its earnings (loss) per share calculations during 2018 and 2019. Management has concluded that the impact of this error on all historical periods is immaterial and therefore has not adjusted the earnings (loss) per share amounts for any periods prior to September 30, 2019.  Rather, the adjustment to remove 1.8 millionunvested shares has been made beginning with the three- and nine-months ended September 30, 2019.  The number of outstanding shares of Common Stock for voting purposes remains at 22.3 million shares, as the aforementioned 1.8 million shares are entitled to vote those shares during the vesting period.

Income (loss) available to common stockholders is computed by deducting the dividends accumulated for the period on cumulative preferred stock from net income. If there is a net loss, the amount of the loss is increased by those preferred dividends. The contingent consideration fair value adjustment is a mark-to-market adjustment based on the decline of approximately 80% in the Company's stock price from December 31, 2018 to June 30, 2019, coupled with the Company not anticipating reaching Adjusted EBITDA requirements outlined in the original agreement at September 30, 2019, see Note. 8 Fair Value of Financial Instruments. The Company is required to reverse the mark-to-market adjustment from the numerator as shown below.

Diluted EPS assumes the dilutive effect of (i) contingently issuable earn-out shares, (ii) Series A cumulative convertible preferred stock, using the if-converted method, and (iii) the assumed exercise of in-the-money stock options and warrants and the assumed vesting of outstanding restricted stock units (“RSUs”), using the treasury stock method.

Whether the Company has net income or a net loss determines whether potential issuances of common stock are included in the diluted EPS computation or whether they would be anti-dilutive. As a result, if there is a net loss, diluted EPS is computed in the same manner as basic EPS is computed. Similarly, if the Company has net income but its preferred dividend adjustment made in computing income available to common stockholders results in a net loss available to common stockholders, diluted EPS would be computed the same as basic EPS.

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The calculations of basic and diluted EPS, are as follows ($ in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2019		2018		2019		2018
Numerator:
Net income (loss)	12,609		5,736		(4,072	)	(6,741	)
Less: Convertible Preferred Stock dividends	(759	)	(524	)	(2,202	)	(1,072	)
Less: Contingent consideration fair value adjustment (see Note 8)	(4,247	)	—		(23,082	)	—
Net income (loss) available to common stockholders	7,603		5,212		(29,356	)	(7,813	)
Denominator:
Weighted average common shares outstanding - basic(1)	20,446,811		21,577,650		20,425,801		21,577,650
Series B Preferred - Warrants	2,845,840		—		—		—
Convertible Series A Preferred Stock	11,486,534		3,522,438		—		—
Restricted stock units	640,247		—		—		—
Weighted average shares for diluted computation	35,419,432		25,100,088		20,425,801		21,577,650
Anti-dilutive: (2)(3)
Convertible Series A Preferred	—		—		8,968,856		2,832,765
Series B Preferred - Warrants at closing	—		—		1,325,779		—
RSUs	—		—		542,421		—
Basic EPS	0.37		0.24		(1.44	)	(0.36	)
Diluted EPS	0.24		0.23		(1.44	)	(0.36	)

(1) The contingent earn-out shares were not included at September 30, 2019 and were removed from September 30, 2018, respectively. See Note 8. Fair Value of Financial Instruments for discussion regarding the Company's contingently issuable earn-out shares.

(2) Warrants to purchase 8,480,000 shares of common stock at $11.50 per share were outstanding at September 30, 2019 and 2018 but were not potentially dilutive as the warrants’ exercise price was greater than the average market price of the common stock during the period. 646,405 of vested and unvested Options and 817,817 of unvested RSUs were also not potentially dilutive as of September 30, 2019 as the respective exercise price or average stock price required for vesting of such awards was greater than the average market price of the common stock during the period.

(3) The 1.8 million unvested earnout shares were not included at September 30, 2019 due to the exercise price being greater than the average market price of the common stock during the period.

Series A Preferred Stock

As of September 30, 2019, we had 34,965 shares of Series A Preferred Stock with an initial stated value of $1,000 per share plus accumulated but unpaid dividends, for total consideration of $37.7 million. Dividends are paid on the Series A Preferred Stock when declared by our Board. To extent permitted, dividends are required to be paid in cash quarterly in arrears on each March 31, June 30, September 30 and December 31 on the stated value at the following rates:

•6% per annum from the original issuance of the Series A Preferred Stock on March 26, 2018 (the “Closing Date”) until the date (the “18 Month Anniversary Date”) that is 18 months from the Closing Date; and

•10% per annum during the period from and after the 18 Month Anniversary Date;

So long as any shares of Series B Preferred Stock of the Company, (the “Series B Preferred Stock”), which are currently either designated as Series B-1 Preferred Stock (“Series B-1 Preferred Stock”) or Series B-2 Preferred Stock (“Series B-2 Preferred

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Stock”), and (referred to collectively as “Series B Preferred Stock”), are outstanding or from and after the occurrence of any non-payment event or default event and until cured or waived, the foregoing rates will increase by 2% per annum.

If not paid in cash, dividends will accrue on the stated value and will increase the stated value on and effective as of the applicable dividend date without any further action by the Board at the following rates:

•8% per annum during the period from May 20, 2019 through the 18 Month Anniversary Date; and

•12% per annum during the period from and after the 18 Month Anniversary Date.

As of September 30, 2019, the Company has accrued a cumulative of $2.7 million in dividends to holders of Series A Preferred Stock as a reduction to additional paid-in capital.

Series B Preferred Stock

As of September 30, 2019, we had 100,000 shares of Series B Preferred Stock outstanding, with each share having an initial stated value of $1,000 plus accumulated but unpaid dividends. Our common stock and Series A Preferred Stock are junior to the Series B Preferred Stock. Dividends are paid on the Series B Preferred Stock when declared by our Board. To the extent not prohibited by applicable law, dividends are required to be declared and paid in cash quarterly in arrears on each March 31, June 30, September 30 and December 31 at the following rates:

• On Series B-1 Preferred Stock with respect to any dividend period for which the Total Net Leverage Ratio (as defined in the Third A&R Credit Agreement (as defined in see Note. 9 Debt) is greater than 1.50:1.00, 15% per annum (or 13.5% per annum if a deleveraging event (as defined below) has occurred prior to the date dividends are paid with respect to such dividend period) and (ii) with respect to any dividend period for which the Total Net Leverage Ratio is less than or equal to 1.50:1.00, 13.5% per annum. 

• On Series B-2 Preferred Stock with respect to any dividend period for which the Total Net Leverage Ratio is greater than 1.50:1.00, 15% per annum (or 13.5% per annum if a deleveraging event has occurred prior to the date dividends are paid with respect to such dividend period) and (ii) with respect to any dividend period for which the Total Net Leverage Ratio is less than or equal to1.50:1.00, 12% per annum.

If not paid in cash, dividends will accrue on the stated value and will increase the stated value on Series B Preferred Stock and is effective as of the applicable dividend date without any further action by the Board at a rate of 18% per annum; provided that, during the period from the occurrence of a deleveraging event until the date that is two years from such deleveraging event, such dividend rate shall instead be 15% per annum. A deleveraging event means certain equity financings or issuances of stock where the proceeds of such equity financings are used exclusively to permanently reduce senior secured indebtedness by at least $50.0 million, or the Total Net Leverage Ratio as of the last day of any fiscal quarter is less than or equal to 1.50:1.00.

The Company has accrued a cumulative of $4.1 million in accrued dividends to holders of Series B Preferred Stock, which is recorded as interest expense in the Company's condensed consolidated statements of operations for the quarter ended September 30, 2019. See Note 8. Fair Value of Financial Instruments for discussion regarding the Company's valuation of Series B Preferred Stock.

Stock Compensation

Under guidance of ASC Topic 718 “Compensation — Stock Compensation,” stock-based compensation expense is measured at the date of grant, based on the calculated fair value of the stock-based award, and is recognized as expense over the employee’s requisite service period (generally the vesting period of the award).

The fair value of the RSUs was based on the closing market price of our common stock on the date of the grant. Stock compensation expense for the RSUs is being amortized using the straight-line method over the service period. For the three months ended September 30, 2019 and 2018, we recognized $1.1 million and $0.5 million in compensation expense, respectively, and $2.8 million and $0.5 million for the nine months ended September 30, 2019 and 2018, respectively.

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Note 4. Accounts Receivable, Net

The following table provides details of accounts receivable, net of allowance as of the dates indicated (in thousands):

	September 30, 2019			December 31, 2018
Contract receivables	$	168,413		$	161,408
Contract retainage	76,103			64,000
Accounts receivable, gross	244,516			225,408
Less: allowance for doubtful accounts	(51		)	(42		)
Accounts receivable, net	$	244,465		$	225,366

Included in costs in excess of billings as of September 30, 2019 are unapproved change orders of approximately $21.0 million for which the Company is pursuing settlement through dispute resolution.    

Activity in the allowance for doubtful accounts for the periods indicated is as follows (in thousands):

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2019			2018		2019			2018
Allowance for doubtful accounts at beginning of period	$	102		$	216	$	42		$	216
Plus: provision for allowances	30			—		90			—
Less: write-offs, net of recoveries	(81		)	—		(81		)	—
Allowance for doubtful accounts at period end	$	51		$	216	$	51		$	216

Note 5. Contracts in Progress

Contracts in progress were as followsas of the dates indicated(in thousands):

	September 30, 2019			December 31, 2018
Costs on contracts in progress	$	1,189,496		$	935,820
Estimated earnings on contracts in progress	111,451			76,883
Revenue on contracts in progress	1,300,947			1,012,703
Less: billings on contracts in progress	(1,263,221		)	(1,027,816		)
Net underbillings (overbillings)	$	37,726		$	(15,113	)

The above amounts have been included in the accompanying condensed consolidated balance sheets under the following captions (in thousands):

	September 30, 2019			December 31, 2018
Costs and estimated earnings in excess of billings on uncompleted contracts	$	109,540		$	47,121
Billings in excess of costs and earnings on uncompleted contracts	(71,814		)	(62,234		)
Net underbillings (overbillings)	$	37,726		$	(15,113	)

Provision for loss of $0.1 million and $1.4 million as of September 30, 2019 and December 31, 2018, respectively, is included in billings in excess of costs and earnings on uncompleted contracts.

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The Company recognizes a contract asset within costs and estimated earnings in excess of billings on uncompleted contracts in the condensed consolidated balance sheet for revenue earned related to unapproved change orders that are probable of recovery. For the quarter ended September 30, 2019 and the year ended December 31, 2018, the Company had unapproved change orders of $69.9 million and $45.0 million, respectively.

Note 6. Property, Plant and Equipment, Net

Property, plant and equipment, net consisted of the following (in thousands):

	September 30, 2019			December 31, 2018
Buildings and leasehold improvements	$	2,812		$	4,614
Land	17,600			19,394
Construction equipment	178,239			175,298
Office equipment, furniture and fixtures	3,449			2,994
Vehicles	5,985			4,991
	208,085			207,291
Accumulated depreciation	(56,301		)	(31,113		)
Property, plant and equipment, net	$	151,784		$	176,178

Depreciation expense of property, plant and equipment was $9,219 and $2,471 for the period ended September 30, 2019 and 2018, respectively, and was $26,125 and $6,388 for the nine months ended September 30, 2019 and 2018, respectively.

Note 7. Goodwill and Intangible Assets, Net

The following table provides the changes in the carrying amount of goodwill for 2019 and 2018:

(in thousands)	Goodwill
January 1, 2018 (Renewables Segment)	$	3,020
Acquisitions (Specialty Civil Segment)	37,237
December 31, 2018	$	40,257
Acquisition adjustments (Specialty Civil Segment)	(2,884		)
September 30, 2019	$	37,373

Intangible assets, net consisted of the following as of the dates indicated:

	September 30, 2019								December 31, 2018
($ in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Remaining Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Remaining Life
Customer relationships	$	26,500	$	(3,749	)	$	22,751	6 years	$	27,000	$	(814	)	$	26,186	7 years
Trade name	13,400		(2,635		)	10,765		4 years	13,400		(575		)	12,825		5 years
Backlog	13,900		(6,791		)	7,109		1 year	13,400		(1,537		)	11,863		2 years
	$	53,800	$	(13,175	)	$	40,625		$	53,800	$	(2,926	)	$	50,874

Amortization expense associated with intangible assets for the three months ended September 30, 2019 and 2018, totaled $3.4 million and $0.1 million, respectively, and $10.3 million and $0.2 million for the nine months ended September 30, 2019 and 2018, respectively.

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The following table provides the annual intangible amortization expense currently expected to be recognized for the years 2019 through 2023:

(in thousands)	Remainder of 2019		2020		2021		2022		2023
Amortization expense	$	3,354	$	11,837	$	6,466	$	6,466	$	5,841

Note 8. Fair Value of Financial Instruments

The Company applies ASC 820, Fair Value Measurement, which establishes a framework for measuring fair value and clarifies the definition of fair value within that framework. ASC 820 defines fair value as an exit price, which is the price that would be received for an asset or paid to transfer a liability in the Company’s principal or most advantageous market in an orderly transaction between market participants on the measurement date. The fair value hierarchy established in ASC 820 generally requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Observable inputs reflect the assumptions that market participants would use in pricing the asset or liability and are developed based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the entity’s own assumptions based on market data and the entity’s judgments about the assumptions that market participants would use in pricing the asset or liability, and are to be developed based on the best information available in the circumstances.

The valuation hierarchy is composed of three levels. The classification within the valuation hierarchy is based on the lowest level of input that is significant to the fair value measurement. The levels within the valuation hierarchy are described below:

Level 1 — Assets and liabilities with unadjusted, quoted prices listed on active market exchanges. Inputs to the fair value measurement are observable inputs, such as quoted prices in active markets for identical assets or liabilities.

Level 2 — Inputs to the fair value measurement are determined using prices for recently traded assets and liabilities with similar underlying terms, as well as direct or indirect observable inputs, such as interest rates and yield curves that are observable at commonly quoted intervals.

Level 3 — Inputs to the fair value measurement are unobservable inputs, such as estimates, assumptions, and valuation techniques when little or no market data exists for the assets or liabilities.

The following table sets forth information regarding the Company's assets measured at fair value on a recurring basis (in thousands):    

		Fair Value Measurements at Reporting Date
	Amount recorded on balance sheet	Quoted Prices in Active Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Liabilities as of December 31, 2018
Contingent consideration	23,082	—	—	23,082

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		Fair Value Measurements at Reporting Date
	Amount recorded on balance sheet	Quoted Prices in Active Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Liabilities as of September 30, 2019
Contingent consideration	—	—	—	—
Series B-1 Preferred Stock - Series A Conversion Warrants	4,200	—	—	4,200
Series B-1 Preferred Stock - Additional 6% Warrants	400	—	—	400

The following is a reconciliation of the beginning and ending balances for the periods indicated of recurring fair value measurements using Level 3 inputs (in thousands):

	Contingent Consideration		Series B Preferred - Series A Conversion Warrants		Series B Preferred - Additional 6% Warrants
Beginning Balance, December 31, 2018	23,082		$	—	$	—
Preferred Series B-1 Stock - Additional Warrants	—		4,200		400
Fair value adjustment	(23,082	)	—		—
Ending Balance, September 30, 2019	—		4,200		400

Contingent Consideration

Pursuant to the original merger agreement with M III Acquisition Corp., the Company shall issue up to an additional 9,000,000 shares of common stock, which shall be fully earned if the final 2019 adjusted EBITDA targets are achieved. As of September 30, 2019, the Company recorded an adjustment of $23.1 million to the liability primarily based on a significant decrease in the Company's stock price for the first six months of 2019 of approximately 80.0% (from $8.61 at December 31, 2018 to $2.04 at June 30, 2019), coupled with the Company not anticipating reaching EBITDA requirements outlined in the original agreement as of September 30, 2019.

The following table sets forth information regarding the Company's assets measured at fair value on a non-recurring basis (in thousands):    

		Fair Value Measurements
	Amount recorded on balance sheet	Quoted Prices in Active Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Liabilities:
Series B-1 and Series B-2 Preferred Stock	81,300	—	—	81,300
Equity:
Series B-1 Preferred Stock - Warrants at closing	14,100	—	—	14,100

On May 20, 2019, the Company entered into the Amended and Restated Equity Commitment Agreement (the “First Equity Commitment Agreement”), by and among the Company and the commitment parties thereto. Pursuant to the First Equity Commitment Agreement, the Company issued and sold on May 20, 2019, 50,000 shares of Series B-1 Preferred Stock, with each share having an initial stated value of $1,000 plus accumulated but unpaid dividends for gross cash proceeds of $50.0 million. The First Equity Commitment Agreement also required the Company to provide warrants for common stock at closing that equaled 10% of the fully diluted issued and outstanding common stock as of such date (the “Warrants at closing”), and in the future could be required to provide additional warrants in the event of conversion of the Series A Preferred Stock (“Series A

17

Conversion Warrants”) and warrants for up to 6% of the fully diluted issued and outstanding common stock if the Company fails to meet certain Adjusted EBITDA thresholds on a trailing twelve-month basis on the last calendar day of May 2020 through April 2021 (the “Additional 6% Warrants”).

On August 13, 2019, the Company entered into the Second Equity Commitment Agreement (the “Second Equity Commitment Agreement”). Pursuant to the Second Equity Commitment Agreement, the Company issued and sold on August 30, 2019, 50,000 shares of Series B-2 Preferred Stock and 900,000 warrants to purchase common stock (“Warrants”) for an aggregate purchase price of $50.0 million.

The information below describes the balance sheet classification and the recurring/nonrecurring fair value measurement:

Series B-1 and Series B-2 Preferred Stock (non-recurring) - The Series B-1 and Series B-2 Preferred Stock were recorded at relative fair value as debt which was estimated using a discounted cashflow model based on certain significant unobservable inputs, such as accumulated dividend rates, and projected Adjusted EBITDA for the life of the Series B Preferred Stock. The fair value of the liability for each of the transactions closed on May 20, 2019 and August 30, 2019, was a combined $81.3 million and recorded on the balance sheet as debt.

Series B-1 and Series B-2 Preferred Stock - Warrantsat closing(non-recurring) - The Warrants at closing, with an exercise price of $0.0001, represented (on an if-converted to common stock basis) 10% of the issued and outstanding common stock of the Company based on the Company’s fully diluted share count on May 20, 2019 (including the number of shares of common stock that may be issued pursuant to all restricted stock awards, restricted stock units, stock options and any other securities or rights (directly or indirectly) convertible into, exchangeable for or to subscribe for common stock that are outstanding on May 20, 2019 (excluding any shares of common stock issuable (a) pursuant to the merger agreement for our business combination, (b) upon conversion of shares of Series A Preferred Stock, (c) upon the exercise of any warrant with an exercise price of $11.50 or higher or (d) upon the exercise of any equity issued pursuant to the Company’s long term incentive plan or other equity plan with a strike price of $11.50 or higher). The 2,545,934 if-converted shares of common stock at closing were valued at the closing stock price of $4.21 on May 20, 2019 and recorded in additional paid in capital.

On August 30, 2019, 900,000 if-converted shares of common stock were issued and were valued at the closing stock price of $3.75 and recorded in additional paid in capital.

Series B-1 Preferred Stock - Series A ConversionWarrants(recurring) - The certificate of designation for the Series A Preferred Stock was amended in connection with the Company entering into the First Equity Commitment Agreement. The conversion rights were amended to allow the holders of Series A Preferred Stock to convert all or any portion of Series A Preferred Stock outstanding at any point in time. If converted, the holders of the Series B Preferred Stock would be entitled to additional warrants, with an exercise price of $0.0001. These warrants were fair valued using the closing stock price of $4.21 on May 20, 2019, at an estimated if-converted share count and recorded as a liability.

Series B-1 Preferred Stock - Additional 6% Warrants (recurring) - The Additional 6% Warrants are issuable if the Company fails to meet certain Adjusted EBITDA thresholds on a trailing twelve-month basis from May 31, 2020 through April 30, 2021. The Company recorded the Additional 6% Warrants at fair value, which was estimated using a Monte Carlo Simulation based on certain significant unobservable inputs, such as a risk rate premium, Adjusted EBITDA volatility, stock price volatility and projected Adjusted EBITDA for the Company for 2019. The Additional 6% Warrants were recorded as a liability.

Other financial instruments of the Company not listed in the table consist of cash and cash equivalents, accounts receivable, accounts payable and other current liabilities that approximate their fair values. Additionally, management believes that the outstanding recorded balance on the line of credit and long-term debt, further discussed in Note 9. Debt, approximates fair value due to their floating interest rates.

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Note 9. Debt

Debt consists of the following obligations as of:

	September 30, 2019		December 31, 2018
Term loan	277,688		300,000
Line of credit	—		46,500
Commercial equipment notes	3,820		5,341
Total principal due for long-term debt	281,508		351,841
Unamortized debt discount and issuance costs	(23,783	)	(23,534	)
Less: Current portion of long-term debt	(31,119	)	(32,580	)
Long-term debt, less current portion	226,606		295,727
Debt - Series B Preferred Stock (1)	104,135		—
Unamortized debt discount and issuance costs	(27,369	)	—
Long-term Series B Preferred Stock	76,766		—

⁽¹⁾ The Company has accrued a cumulative of $4.1 million in accrued dividends to holders of Series B Preferred Stock, which is recorded as interest expense in the Company's condensed consolidated statements of operations for the quarter ended September 30, 2019.

Third Amended and Restated Credit Agreement

On May 20, 2019, the Third Amended and Restated Credit and Guarantee Agreement (the “Third A&R Credit Agreement”) became effective.

Term loan borrowings mature on September 25, 2024 and are subject to quarterly amortization of principal, commencing on March 31, 2019, in an amount equal to 2.50% of the aggregate principal amount of such loans. Beginning with 2020, an additional annual payment is required equal to 75% of Excess Cash Flow (as defined in the Third A&R Credit Agreement) for the preceding fiscal year if such Excess Cash Flow is greater than $2.5 million, with the percentage of Excess Cash Flow subject to reduction based upon the Company’s consolidated leverage ratio.

Borrowings under the term loan are required to be repaid on the last business day of each March, June, September and December, continuing with the first fiscal quarter following the effective date of the Third A&R Credit Agreement, in an amount equal to 2.5% of the initial balance of the initial term loan and will not be able to be reborrowed. Borrowings under the revolving line of credit mature on September 25, 2023.

Interest on the consenting lender term loan tranche accrues at a per annum rate of, at the Company's option, (x) LIBOR plus a margin of 8.25% or (y) an alternate base rate plus a margin of 7.25%; provided, however, that upon achieving a First Lien Net Leverage Ratio (as defined below) of no greater than 2.67:1.00, the margin shall permanently step down to (y) for LIBOR loans, 6.75% and (x) for alternative base rate loans, 5.75%. Interest on the non-consenting lender term loan tranche will stay at a per annum rate of, at the Company’s option, (x) LIBOR plus a margin of 6.25% or (y) an alternate base rate plus a margin of 5.25%. Interest on initial revolving facility borrowings and swing line loans accrues at a rate of, at the Company's option, (x) LIBOR plus a margin of 4.25% or (y) the applicable base rate plus a margin of 3.25%. The weighted average interest rate under the Third A&R Credit Agreement as of September 30, 2019 and December 31, 2018, was 10.42% and 8.82%, respectively.

The terms of the Third A&R Credit Agreement include customary affirmative and negative covenants and provide for customary events of default, which include, among others, nonpayment of principal or interest and failure to timely deliver financial statements. Under the Third A&R Credit Agreement, the financial covenant to which the Credit Parties as defined therein are subject provides that the First Lien Net Leverage Ratio (as defined therein) may not exceed (i) prior to the fiscal quarter ending December 31, 2019, 4.75:1.0, (ii) from and prior to the fiscal quarter ending December 31, 2020, 3.50:1.0, (iii) from and prior to the fiscal quarter ending December 31, 2021, 2.75:1.0, and (iv) from and after March 31, 2022, 2.25:1.0. Under the Third A&R Credit Agreement, the Company is not to obtain an equity infusion to cure for any covenant violations for fiscal quarter ending in 2019, excluding the Series B Preferred Stock. Thereafter, the Company will have access to a customary equity cure.

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The Third A&R Credit Agreement also includes certain limitations on the payment of cash dividends on the Company's common shares and provides for other restrictions on (subject to certain exceptions) liens, indebtedness (including guarantees and other contingent obligations), investments (including loans, advances and acquisitions), mergers and other fundamental changes and sales and other dispositions of property or assets, among others.

Letters of Credit and Surety Bonds

In the ordinary course of business, the Company is required to post letters of credit and surety bonds to customers in support of performance under certain contracts. Such letters of credit are generally issued by a bank or similar financial institution. The letter of credit or surety bond commits the issuer to pay specified amounts to the holder of the letter of credit or surety bond under certain conditions. If the letter of credit or surety bond issuer were required to pay any amount to a holder, the Company would be required to reimburse the issuer, which, depending upon the circumstances, could result in a charge to earnings. As of September 30, 2019, and December 31, 2018, the Company was contingently liable under letters of credit issued under its Third A&R Credit Agreement or its old credit facility, respectively, in the amount of $21.0 million and $3.0 million, respectively, related to projects. In addition, as of September 30, 2019 and December 31, 2018, the Company had outstanding surety bonds on projects of $2,017.6 million and $1,682.0 million, respectively.

Contractual Maturities

Contractual maturities of the Company's debt and capital lease (see Note 10. Commitments and Contingencies) obligations as of September 30, 2019 (in thousands):

Remainder of 2019	$	13,965
2020	55,988
2021	51,826
2022	47,276
2023	32,905
Thereafter	257,591
Total contractual obligations	$	459,551

Note 10. Commitments and Contingencies

Capital Leases

The Company has obligations, exclusive of associated interest, under various capital leases for equipment totaling $73.9 million and $63.5 million at September 30, 2019 and December 31, 2018, respectively. Gross property under this capitalized lease agreement at September 30, 2019 and December 31, 2018, totaled $119.6 million and $76.9 million, less accumulated depreciation of $29.3 million and $10.1 million, respectively, for net balances of $90.3 million and $66.8 million, respectively. Depreciation of assets held under the capital leases is included in the cost of revenue in the condensed consolidated statements of operations.

Operating Leases

In the ordinary course of business, the Company enters into non-cancelable operating leases for certain of its facility, vehicle and equipment needs, including related party leases. See Note 14. Related Party Transactions. Rent and related expense for operating leases that have non-cancelable terms totaled approximately $4.3 million and $0.5 million for the three months ended September 30, 2019 and 2018, respectively and $9.5 million and $1.5 million for the nine months ended September 30, 2019 and 2018, respectively.

The Company has long-term power-by-the-hour equipment rental agreements,included in non-canceable operating lease expense above, with a construction equipment manufacturer that have a guaranteed minimum monthly hour requirement. The minimum guaranteed amount based on the Company's current operations is $3.2 million per year. Total expense under these agreements was $3.2 million for the nine months ended September 30, 2019.

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Sale-leaseback Transaction

On March 13, 2019, the Company completed a sale-leaseback transaction related to certain assets that were acquired as part of our recent acquisitions of $25.0 million. The payments related to this transaction are over a four year term and have been included as part of the Contractual Maturities table, See Note 9. Debt.

Note 11. Concentrations

The Company had the following approximate revenue and accounts receivable concentrations, net of allowances, for the periods ended:

	Revenue %							Accounts Receivable %
	Three Months Ended			Nine Months Ended
	September 30,			September 30,				September 30, 2019	December 31, 2018
	2019	2018		2019		2018
Company A	*	24.1	%	*		22.6	%	*	20.0	%
Company B	*	16.7	%	*		12.1	%	*	*
Company C	*	*		11.7	%	*		*	19.0	%
Company D	*	11.7	%	*		*		*	*

* Amount was not above 10% threshold

Note 12. Income Taxes

The Company’s statutory federal tax rate was 21.00% for the periods ended September 30, 2019 and 2018, respectively. State tax rates for the same period vary among states and range from approximately 0.8% to 12.0%. A small number of states do not impose an income tax.

The effective tax rates for the three months ended September 30, 2019 and 2018were (4.6)% and 13.2%, respectively. The effective tax rates for the nine months ended September 30, 2019 and 2018 were 43.0% and 15.8%, respectively. The difference between the Company’s effective tax rate and the federal statutory rate primarily results from permanent differences related to the revaluation of the contingent liability fair value adjustment and interest accrued for the Series B Preferred Stock, which is not deductible for federal and state income taxes. There were no changes in uncertain tax positions during the periods ended September 30, 2019 and 2018.

Note 13. Segments

The Company operated as one reportable segment for 2018 and evaluated the business as a renewable construction company. In late 2018, the Company completed two significant acquisitions that construct projects outside of the renewable market. As of September 30, 2019, we operate our business as two reportable segments: the Renewables segment and the Specialty Civil segment. The 2018 segment presentation has been recast to be consistent to the 2019 segmentation.

Each of our reportable segments is comprised of similar business units that specialize in services unique to the respective markets that each segment serves. The classification of revenue and gross profit for segment reporting purposes can at times require judgment on the part of management. Our segments may perform services across industries or perform joint services for customers in multiple industries. To determine reportable segment gross profit, certain allocations, including allocations of shared and indirect costs, such as facility costs, equipment costs and indirect operating expenses, were made based on segment revenue.

Separate measures of the Company’s assets, including capital expenditures and cash flows by reportable segment are not produced or utilized by management to evaluate segment performance. A substantial portion of the Company’s fixed assets are owned by and accounted for in our equipment department, including operating machinery, equipment and vehicles, as well as office equipment, buildings and leasehold improvements, and are used on an interchangeable basis across our reportable segments. As such, for reporting purposes, total under/over absorption of equipment expenses consisting primarily of depreciation is allocated to the Company's two reportable segments based on segment revenue.

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The following is a brief description of the Company's reportable segments:

The Renewables segment operates throughout the United States and specializes in a range of services that include full EPC project delivery, design, site development, construction, installation and restoration of infrastructure services for the wind and solar industries.

The Specialty Civil segment operates throughout the United States and specializes in a range of services that include:

• Heavy civil construction services such as high-altitude road and bridge construction, specialty paving, industrial maintenance and other local, state and government projects.

• Environmental remediation services such as site development, environmental site closure and outsourced contract mining and coal ash management services.

• Rail Infrastructure services such as planning, creation and maintenance of infrastructure projects for major railway and intermodal facilities construction.

Segment Revenue

Revenue by segment was as follows:

	Three months ended September 30,								Nine months ended September 30,
(in thousands)	2019				2018				2019				2018
Segment	Revenue		% of Total Revenue		Revenue		% of Total Revenue		Revenue		% of Total Revenue		Revenue		% of Total Revenue
Renewables	$	242,654	57.5	%	$	262,477	94.0	%	$	496,863	52.8	%	$	480,362	95.4	%
Specialty Civil	179,368		42.5	%	16,802		6.0	%	443,930		47.2	%	23,125		4.6	%
Total revenue	$	422,022	100.0	%	$	279,279	100.0	%	$	940,793	100.0	%	$	503,487	100.0	%

Segment Gross Profit

Gross profit by segment was as follows:

	Three months ended September 30,								Nine months ended September 30,
(in thousands)	2019				2018				2019				2018
Segment	Gross Profit		Gross Profit Margin		Gross Profit		Gross Profit Margin		Gross Profit		Gross Profit Margin		Gross Profit		Gross Profit Margin
Renewables	$	27,469	11.3	%	$	24,822	9.5	%	$	45,806	9.2	%	$	37,578	7.8	%
Specialty Civil	25,401		14.2	%	2,186		13.0	%	45,259		10.2	%	3,144		13.6	%
Total gross profit	$	52,870	12.5	%	$	27,008	9.7	%	$	91,065	9.7	%	$	40,722	8.1	%

Note 14. Related Party Transactions

Clinton Lease Agreement

On October 20, 2017, the Company enacted a plan to restructure the ownership of a building and land which resulted in the transfer of ownership of such building and land from its consolidated subsidiary, White Construction, LLC, to Clinton RE Holdings, LLC (Cayman) (“Cayman Holdings”), a directly owned subsidiary of the Infrastructure and Energy Alternatives, LLC. The lease has been classified as an operating lease with monthly payments through 2038. The Company's rent expense related to the lease during the three months ended September 30, 2019 and 2018, was $178 and $153, respectively, and for the nine months ended September 30, 2019 and 2018, was $534 and $459, respectively.

On October 30, 2019, Cayman Holdings sold the building to a third party that assumed the future payments and terms of the existing lease. The Company will continue to have rent expense related to the lease but it will no longer be with a related party.

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Related Party Shareholders

Type of Equity	Holder	Ownership Percentage
Series A Preferred	Infrastructure and Energy Alternatives, LLC	100	%
Series B-1 Preferred Stock, Series A Conversion Warrants, Additional 6% Warrants, Warrants at closing	Ares	60	%
	Oaktree Power Opportunities Fund III Delaware, L.P.	40	%
Contingent Consideration	Infrastructure and Energy Alternatives, LLC	100	%
Series B-2 Preferred Stock	Ares	100	%

Note 15. Subsequent Event

Third Equity Commitment Agreement

On October 29, 2019, the Company entered into the Third Equity Commitment Agreement (the “Third Equity Commitment Agreement”) among the Company, funds managed by Ares Management Corporation (“Ares”) and funds managed by Oaktree Capital Management (“Oaktree”). Pursuant to the Third Equity Commitment Agreement, the Company agreed to issue and sell 80,000 shares of newly designated Series B-3 Preferred Stock (the “Series B-3 Preferred Stock”) and 3,568,750 Warrants for an aggregate purchase price of $80.0 million (the “Initial Closing”). Consummation of the Initial Closing is subject to a number of conditions; however, funding is expected to occur within 12 business days from October 29th.

After the Initial Closing, Ares and Oaktree, pursuant to the Third Equity Commitment Agreement are each required, subject to certain conditions, to purchase up to an additional 15,000 shares (collectively 30,000 shares) of Series B-3 Preferred Stock and 515,625 Warrants (collectively 1,031,250 Warrants), resulting in additional proceeds to the Company in an amount of up to $30.0 million, if, by certain agreed upon dates, the Company has not repaid at least an additional $30.0 million under its term loan using excess cash and proceeds from the Rights Offering.

Rights Offering Agreement

On October 29, 2019, the Company entered into the Rights Offering Agreement (the “Rights Agreement”). Pursuant to the Rights Agreement, assuming all applicable conditions are satisfied, the Company has agreed to conduct a rights offering and to distribute a transferrable right, but not the obligation, to purchase Series B-3 Preferred Stock and warrants to purchase common stock to the holders of the Company’s outstanding common stock other than parties to the Third Equity Commitment Agreement and each of their director designees, the officers of the Company, and any related party of the foregoing (the “Rights Offering”). The Rights Offering will be subject to a maximum participation of 15,000 shares of Series B-3 Preferred Stock being issued, plus warrants at the rate of 5.5 per $160 of Series B-3 Preferred Stock purchased, an individual investment minimum of $50,000 and an individual investment maximum of the greater of the holder's pro rata share of the common stock eligible to participate and $2.25 million.

Preferred Stock Exchange Agreement

On October 29, 2019, the Company entered into the Preferred Stock Exchange Agreement (the “Exchange Agreement”). Pursuant to the Exchange Agreement, the holder of our Series A Preferred Stock has agreed to exchange 50% of its total Series A Preferred Stock outstanding into shares of Series B-3 Preferred Stock and Warrants at the Initial Closing. The number of shares of Series B-3 Preferred Stock to be issued in the exchange will be calculated by dividing the stated value (including unpaid accumulated and compounded dividends) of each share of Series A Preferred Stock to be exchanged by a price per share of Series B-3 Preferred Stock of $1,000. The number of warrants to be issued will be at a rate of 5.5 warrants per $160 of stated value of the Series A Preferred Stock exchanged.

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Forward-Looking Statements

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”) and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). The forward-looking statements can be identified by the use of forward-looking terminology including “may,” “should,” “likely,” “will,” “believe,” “expect,” “anticipate,” “estimate,” “forecast,” “seek,” “target,” “continue,” “plan,” “intend,” “project,” or other similar words. All statements, other than statements of historical fact included in this Quarterly Report, regarding expectations for future financial performance, business strategies, expectations for our business, future operations, liquidity positions, availability of capital resources, financial position, estimated revenues and losses, projected costs, prospects, plans, objectives and beliefs of management are forward-looking statements.

These forward-looking statements are based on information available as of the date of this Quarterly Report and our management’s current expectations, forecasts and assumptions, and involve a number of judgments, risks and uncertainties. Although we believe that the expectations reflected in such forward-looking statements are reasonable, we cannot give any assurance that such expectations will prove correct. Forward-looking statements should not be relied upon as representing our views as of any subsequent date. As a result of a number of known and unknown risks and uncertainties, our actual results or performance may be materially different from those expressed or implied by these forward-looking statements. Some factors that could cause actual results to differ include:

• our ability to consummate the transactions related to the Third Equity Commitment Agreement, the Rights Agreement, and the Exchange Agreement (each as defined below);

• availability of commercially reasonable and accessible sources of liquidity and bonding;

• our ability to generate cash flow and liquidity to fund operations;

• the timing and extent of fluctuations in geographic, weather and operational factors affecting our customers, projects and the industries in which we operate;

• our ability to identify acquisition candidates, integrate acquired businesses and realize upon the expected benefits of the acquisition of CCS and William Charles;

• consumer demand;

• our ability to grow and manage growth profitably;

• the possibility that we may be adversely affected by economic, business, and/or competitive factors;

• market conditions, technological developments, regulatory changes or other governmental policy uncertainty that affects us or our customers;

• our ability to manage projects effectively and in accordance with management estimates, as well as the ability to accurately estimate the costs associated with our fixed price and other contracts, including any material changes in estimates for completion of projects;

• the effect on demand for our services and changes in the amount of capital expenditures by customers due to, among other things, economic conditions, commodity price fluctuations, the availability and cost of financing, and customer consolidation;

• the ability of customers to terminate or reduce the amount of work, or in some cases, the prices paid for services, on short or no notice;

• customer disputes related to the performance of services;

• disputes with, or failures of, subcontractors to deliver agreed-upon supplies or services in a timely fashion;

• our ability to replace non-recurring projects with new projects;

• the impact of U.S. federal, local, state, foreign or tax legislation and other regulations affecting the renewable energy industry and related projects and expenditures;

• the effect of state and federal regulatory initiatives, including costs of compliance with existing and future safety and environmental requirements;

• fluctuations in maintenance, materials, labor and other costs;

• our beliefs regarding the state of the renewable wind energy market generally; and

• the “Risk Factors” described in our Annual Report on Form 10-K for the year ended December 31, 2018, and in our quarterly reports, other public filings and press releases.

We do not undertake any obligation to update forward-looking statements to reflect events or circumstances after the date they were made, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.

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Throughout this section, unless otherwise noted “IEA,” “Company,” “we,” “us,” and “our” refer to Infrastructure and Energy Alternatives, Inc. and its consolidated subsidiaries. Certain amounts in this section may not foot due to rounding.

“Emerging Growth Company” Status

The condensed consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and reflect the financial position, results of operations, and cash flows of IEA. IEA qualifies as an “emerging growth company” as defined in the Jumpstart Our Business Startups Act (the “JOBS Act”). For as long as a company is deemed to be an “emerging growth company,” it may take advantage of specified reduced reporting and other regulatory requirements that are generally unavailable to other public companies. The JOBS Act also provides that an “emerging growth company” can delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We have elected to take advantage of this extended transition period. Our financial statements may therefore not be comparable to those of companies that have adopted such new or revised accounting

standards. See Note 1. Business, Basis of Presentation and Significant Accounting Policies of the Notes to condensed consolidated financial statements for more information on “emerging growth company” reduced reporting requirements and when we would cease to be an “emerging growth company.” We continue to monitor our status as an “emerging growth company” and are currently preparing, and expect to be ready, to comply with the additional reporting and regulatory requirements that will be applicable to us when we cease to qualify as an “emerging growth company.”

Overview

We are a leading diversified infrastructure construction company with specialized energy and heavy civil expertise throughout the United States. The Company specializes in providing complete engineering, procurement and construction services throughout the United States for the renewable energy, traditional power and civil infrastructure industries. These services include the design, site development, construction, installation and restoration of infrastructure. We are one of three Tier 1 providers in the wind energy industry and have completed more than 200 wind and solar projects in 35 states. Although the Company has historically focused on the wind industry, its recent acquisitions have expanded our construction capabilities and geographic footprint to create a diverse national platform of specialty construction capabilities in the areas of environmental remediation, industrial maintenance, specialty paving, heavy civil and rail infrastructure construction. We believe we have the ability to continue to expand these services because we are well-positioned to leverage our expertise and relationships in the wind energy business to provide complete infrastructure solutions in all areas.

We segregate our business into two reportable segments: the Renewables (“Renewables”) segment and the Heavy Civil and Industrial (“Specialty Civil”) segment. See “Segment Results” for a description of the reportable segments and their operations.

As previously disclosed, the Company’s prior year results reflect the effect of multiple severe weather events on the Company’s wind business that began late in the third quarter and continued into the fourth quarter of 2018. These weather conditions had a significant impact on the construction of six wind projects across South Texas, Iowa, and Michigan, resulting in additional labor, equipment and material costs. Although these projects are all now completed, and we are collecting and continuing to collect on change orders relating to force majeure provisions of the contracts with respect to certain of these projects, we are continuing to feel the impacts of these events on our business, including with respect to our financial and liquidity positions and operating cash flows. In connection with the adverse weather effects, the Company took steps in 2019 that it believes enhanced its liquidity. See “Recent Developments.”

Recent Developments

October 2019

Third Equity Commitment Agreement

On October 29, 2019, the Company entered into the Third Equity Commitment Agreement (the “Third Equity Commitment Agreement”) among the Company, funds managed by Ares Management Corporation (“Ares”) and funds managed by Oaktree Capital Management (“Oaktree”). Pursuant to the Third Equity Commitment Agreement, the Company agreed to issue and sell 80,000 shares of newly designated Series B-3 Preferred Stock (the “Series B-3 Preferred Stock”) and 3,568,750 Warrants for an aggregate purchase price of $80.0 million (the “Initial Closing”). Consummation of the Initial Closing is subject to a number of conditions; however, funding is expected to occur within 12 business days from October 29, 2019.

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After the Initial Closing, Ares and Oaktree, pursuant to the Third Equity Commitment Agreement are each required, subject to certain conditions, to purchase up to an additional 15,000 shares (collectively 30,000 shares) of Series B-3 Preferred Stock and 515,625 Warrants (collectively 1,031,250 Warrants), resulting in additional proceeds to the Company in an amount of up to $30.0 million, if, by certain agreed upon dates, the Company has not repaid at least an additional $30.0 million under its term loan using excess cash and proceeds from the Rights Offering.

Rights Offering Agreement

On October 29, 2019, the Company entered into the Rights Offering Agreement (the “Rights Agreement”). Pursuant to the Rights Agreement, assuming all applicable conditions are satisfied, the Company has agreed to conduct a rights offering and to distribute a transferrable right, but not the obligation, to purchase Series B-3 Preferred Stock and warrants to purchase common stock to the holders of the Company’s outstanding common stock other than parties to the Third Equity Commitment Agreement and each of their director designees, the officers of the Company, and any related party of the foregoing (the “Rights Offering”). The Rights Offering will be subject to a maximum participation of 15,000 shares of Series B-3 Preferred Stock being issued, plus warrants at the rate of 5.5 per $160 of Series B-3 Preferred Stock purchased, an individual investment minimum of $50,000 and an individual investment maximum of the greater of the holder's pro rata share of the common stock eligible to participate and $2.25 million.

Preferred Stock Exchange Agreement

On October 29, 2019, the Company entered into the Preferred Stock Exchange Agreement (the “Exchange Agreement”). Pursuant to the Exchange Agreement, the holder of our Series A Preferred Stock has agreed to exchange 50% of its total Series A Preferred Stock outstanding into shares of Series B-3 Preferred Stock and Warrants. The number of shares of Series B-3 Preferred Stock to be issued in the exchange will be calculated by dividing the stated value (including unpaid accumulated and compounded dividends) of each share of Series A Preferred Stock to be exchanged by a price per share of Series B-3 Preferred Stock of $1,000.00. The number of warrants to be issued will be at a rate of 5.5 warrants per $160 of stated value of the Series A Preferred Stock exchanged.

August 2019

Second Equity Commitment Agreement

On August 13, 2019, the Company entered into the Second Equity Commitment Agreement (the “Second Equity Commitment Agreement”). Pursuant to the Second Equity Commitment Agreement, the Company issued and sold on August 30, 2019, 50,000 shares of Series B-2 Preferred Stock (the “Series B-2 Preferred Stock”) and 900,000 warrants to purchase common stock (“Warrants”) for an aggregate purchase price of $50.0 million.

May 2019

First Equity Commitment Agreement

On May 20, 2019, the Company entered into the Amended and Restated Equity Commitment Agreement (the “First Equity Commitment Agreement”). Pursuant to the First Equity Commitment Agreement, the Company issued and sold on May 20, 2019, 50,000 shares of Series B-1 Preferred Stock (the “Series B-2 Preferred Stock”) and 2,545,934 Warrants for an aggregate purchase price of $50.0 million.

Third Amended and Restated Credit Agreement

On May 20, 2019, the Third Amended and Restated Credit Agreement (the “Third A&R Credit Agreement”) became effective. Please see “-Liquidity and Capital Resources--Sources and Uses of Cash-Third A&R Credit Documents.”

Series A Preferred Stock

On May 20, 2019, we adopted an Amended and Restated Certificate of Designations of Series A Preferred Stock which, among other things, permits us to accrue dividends and increase the stated value on the Series A Preferred Stock in lieu of paying cash dividends. Please see “-Liquidity and Capital Resources-Sources and Uses of Cash-Series A Preferred Stock.”

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Company Highlights

Our long-term diversification and growth strategy has been to broaden our solar, power generation, and civil infrastructure capabilities and geographic presence and to expand the services we provide within our existing business areas. We took important steps in late 2018 by deepening our capabilities and entering new sectors that are synergistic with our existing capabilities and product offerings.

On September 25, 2018, we acquired CCS, a leading provider of environmental and industrial engineering services. The wholly-owned subsidiaries of CCS, Saiia and the ACC Companies, generally enter into long-term contracts with both government and non-government customers to provide EPC services for environmental, heavy-civil and mining projects. We believe our acquisition of Saiia and the ACC Companies will provide IEA with a strong and established presence in the environmental and industrial engineering markets, enhanced civil construction capabilities and an expanded domestic footprint in less-seasonal Southeast, West and Southwest markets.

On November 2, 2018, we acquired William Charles, a leader in engineering and construction solutions for the rail infrastructure and heavy civil construction industries. We believe our acquisition of William Charles will provide IEA with a market leading position in the attractive rail civil infrastructure market and continue to bolster our further growth in the heavy civil and construction footprint across the Midwest and Southwest.

    We believe that through the acquisitions above that the Company has transformed its business into a diverse national platform of specialty construction capabilities with market leadership in niche markets, including renewables, environmental remediation and industrial maintenance services, heavy civil and rail.

Economic, Industry and Market Factors

We closely monitor the effects that changes in economic and market conditions may have on our customers. General economic and market conditions can negatively affect demand for our customers’ products and services, which can lead to reductions in our customers’ capital and maintenance budgets in certain end-markets. In the face of increased pricing pressure, we strive to maintain our profit margins through productivity improvements and cost reduction programs. Other market, regulatory and industry factors could also affect demand for our services, such as:

• changes to our customers’ capital spending plans;

• mergers and acquisitions among the customers we serve;

• access to capital for customers in the industries we serve;

• changes in tax and other incentives;

• new or changing regulatory requirements or other governmental policy uncertainty;

• economic, market or political developments; and

• changes in technology.

We cannot predict the effect that changes in such factors may have on our future results of operations, liquidity and cash flows, and we may be unable to fully mitigate, or benefit from, such changes.

Impact of Seasonality and Cyclical Nature of Business

Our revenue and results of operations are subject to seasonal and other variations. These variations are influenced by weather, customer spending patterns, bidding seasons, fiscal year-ends, project schedules and timing, in particular, for large non-recurring projects and holidays. Typically, our revenue is lowest in the first quarter of the year because cold, snowy or wet conditions experienced in the northern climates are not conducive to efficient or safe construction practices. Revenue in the second quarter is typically higher than in the first quarter, as some projects begin, but continued cold and wet weather and effects from thawing ground conditions can often impact second quarter productivity. The third and fourth quarters are typically our most productive quarters of the year, as a greater number of projects are underway, and weather is normally more

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accommodating to construction projects. In the fourth quarter, many projects tend to be completed by customers seeking to spend their capital budgets before the end of the year, which generally has a positive impact on our revenue. Nevertheless, the holiday season and inclement weather can cause delays, which can reduce revenue and increase costs on affected projects. Any quarter may be positively or negatively affected by adverse or unusual weather patterns, including from excessive rainfall, warm winter weather or natural catastrophes such as hurricanes or other severe weather, making it difficult to predict quarterly revenue and margin variations.

Our industry is also highly cyclical. Fluctuations in end-user demand within the industries we serve, or in the supply of services within those industries, can impact demand for our services. As a result, our business may be adversely affected by industry declines or timing of new projects. Variations in project schedules or unanticipated changes in project schedules, in particular, in connection with large construction and installation projects, can create fluctuations in revenue, which may adversely affect us in a given period. In addition, revenue from master service agreements, while generally predictable, can be subject to volatility. The financial condition of our customers and their access to capital, variations in project margins, regional, national and global economic, political and market conditions, regulatory or environmental influences, and acquisitions, dispositions or strategic investments can also materially affect quarterly results. Accordingly, our operating results in any particular period may not be indicative of the results that can be expected for any other period.

Understanding our Operating Results

Revenue

We provide engineering, building, installation, maintenance and upgrade services to our customers. We derive revenue from projects performed under fixed price contracts and other service agreements for specific projects or jobs requiring the construction and installation of an entire infrastructure system or specified units within an entire infrastructure system. We recognize a significant portion of our revenue based on the percentage-of-completion method. See Revenue Recognition for Percentage-of-Completion Projects within Critical Accounting Policies and Estimates below.

Cost of Revenue and Gross Margin

Cost of revenue consists principally of salaries, wages and employee benefits; subcontracted services; equipment rentals and repairs; fuel and other equipment expenses, including allocated depreciation and amortization expense; material costs, parts and supplies; insurance; and facilities expenses. Project profit is calculated by subtracting a project’s cost of estimated revenue, including project-related depreciation, from project revenue. Project profitability and corresponding project margins will be reduced if actual costs to complete a project exceed our estimates on fixed price and installation/construction service agreements. Estimated losses on contracts are recognized immediately when estimated costs to complete a project exceed the remaining revenue to be received over the remainder of the contract. Various factors can impact our margins on a quarterly or annual basis, including:

• Seasonality and Geographical Factors. Seasonal patterns can have a significant impact on project margins. Generally, business is slower at the beginning of the year. Adverse or favorable weather conditions can impact project margins in a given period. For example, extended periods of rain or snowfall can negatively impact revenue and project margins as a result of reduced productivity from projects being delayed or temporarily halted. Conversely, in periods when weather remains dry and temperatures are accommodating, more work can be done, sometimes with less cost, which can favorably impact project margins. In addition, the mix of business conducted in different geographic areas can affect project margins due to the particular characteristics associated with the physical locations where the work is being performed, such as mountainous or rocky terrain versus open terrain. Site conditions, including unforeseen underground conditions, can also impact project margins.

• Revenue Mix. The mix of revenues derived from the industries we serve and the types of services we provide within an industry will impact margins, as certain industries and services provide higher margin opportunities. Additionally, changes in our customers’ spending patterns in any of the industries we serve can cause an imbalance in supply and demand and, therefore, affect margins and mix of revenues by industry served.

• Performance Risk. Overall project margins may fluctuate due to work volume, project pricing and job productivity. Job productivity can be impacted by quality of the work crew and equipment, availability of skilled labor, environmental or regulatory factors, customer decisions and crew productivity. Crew productivity can be influenced by weather conditions and job terrain, such as whether project work is in a right of way that is open or one that is obstructed (either by physical obstructions or legal encumbrances).

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• Subcontracted Resources. Our use of subcontracted resources in a given period is dependent upon activity levels and the amount and location of existing in-house resources and capacity. Project margins on subcontracted work can vary from project margins on self-perform work. As a result, changes in the mix of subcontracted resources versus self-perform work can impact our overall project margins.

Selling, General and Administrative Expenses

Selling, general and administrative expenses consist principally of compensation and benefit expenses, travel expenses and related expenses for our finance, benefits, risk management, legal, facilities, information services and executive personnel. Selling, general and administrative expenses also include outside professional and accounting fees, expenses associated with information technology used in administration of the business, various types of insurance, acquisition and transaction expenses.

Interest Expense, Net

Interest expense, net consists of contractual interest expense on outstanding debt obligations, capital leases, amortization of deferred financing costs and other interest expense, including interest expense related to financing arrangements, with all such expenses net of interest income.

Critical Accounting Policies and Estimates

This management’s discussion and analysis of our financial condition and results of operations is based upon IEA’s consolidated financial statements included in Item 1 of this Quarterly Report on Form 10-Q, which have been prepared in accordance with U.S. GAAP. The preparation of these consolidated financial statements requires the use of estimates and assumptions that affect the amounts reported in our consolidated financial statements and the accompanying notes. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances, the results of which form the basis of making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Given that management estimates, by their nature, involve judgments regarding future uncertainties, actual results may differ from these estimates if conditions change or if certain key assumptions used in making these estimates ultimately prove to be inaccurate. For discussion of all of our significant accounting policies, see Note 1. Business, Basis of Presentation and Significant Accounting Policies to our condensed consolidated financial statements.

We believe that the accounting policies described below are the most critical in the preparation of our consolidated financial statements as they are important to the portrayal of our financial condition and require significant or complex judgment and estimates on the part of management.

Revenue Recognition for Percentage-of-Completion Projects

Revenue from fixed-price contracts provides for a fixed amount of revenue for the entire project, subject to certain additions for changed scope or specifications. We recognize revenue from these contracts using the percentage-of-completion method. Under this method, the percentage of revenue to be recognized for a given project is measured by the percentage of costs incurred to date on the contract to the total estimated costs for the contract.

The estimation process for revenue recognized under the percentage-of-completion method is based on the professional knowledge and experience of our project managers, engineers and financial professionals. Our management reviews the estimates of contract revenue and costs on an ongoing basis. Changes in job performance, job conditions and management’s assessment of expected settlements of disputes related to contract price adjustments are factors that influence estimates of total contract value and total costs to complete those contracts and, therefore, our profit recognition. Changes in these factors may result in revisions to costs and income, and their effects are recognized in the period in which the revisions are determined, which could materially affect our results of operations in the period in which such changes are recognized. Provisions for losses on uncompleted contracts are made in the period in which such losses are determined to be probable and the amount can be reasonably estimated. The substantial majority of fixed price contracts are completed within one year.

For an approved change order which can be reliably estimated as to price, the anticipated revenues and costs associated with the change order are added to the total contract value and total estimated costs of the project, respectively. When costs are incurred for a) an unapproved change order which is probable to be approved or b) an approved change order which cannot be reliably estimated as to price, the total anticipated costs of the change order are added to both the total contract value and total estimated costs for the project. Once a change order becomes approved and reliably estimable, any margin related to the change order is added to the total contract value of the project.

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Business Combinations

We account for our business combinations by recognizing and measuring in the financial statements the identifiable assets acquired, the liabilities assumed and any non-controlling interests (if applicable) in the acquiree at the acquisition date. The purchase is 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.

Due to the time required to gather and analyze the necessary data for each acquisition, U.S. GAAP provides a “measurement period” of up to one year in which to finalize these fair value determinations. During the measurement period, preliminary fair value estimates may be revised if new information is obtained about the facts and circumstances existing as of the date of acquisition, or based on the final net assets and working capital of the acquired business, as prescribed in the applicable purchase agreement. Such adjustments may result in the recognition, or adjust the fair values, of acquisition-related assets and liabilities and/or consideration paid, and are referred to as “measurement period” adjustments. For the period ended September 30, 2019, there were no measurement period adjustments and the Company has finalized the initial fair value measurements for the CCS and William Charles acquisitions, see further discussion in Note 2. Acquisitions included in Item 1 of this Quarterly Report on Form 10-Q.

Results of Operations

Three Months Ended September 30,2019 and 2018

The following table reflects our consolidated results of operations in dollar and percentage of revenue terms for the periods indicated:

	Three Months Ended September 30,
(in thousands)	2019					2018
Revenue	$	422,022		100.0	%	$	279,279		100.0	%
Cost of revenue	369,152			87.5	%	252,271			90.3	%
Gross profit	52,870			12.5	%	27,008			9.7	%
Selling, general and administrative expenses	31,313			7.4	%	16,964			6.1	%
Income from operations	21,557			5.1	%	10,044			3.6	%
Interest expense, net	(13,959		)	(3.3	)%	(1,579		)	(0.6	)%
Other income	4,455			1.1	%	(1,859		)	(0.7	)%
Income from continuing operations before income taxes	12,053			2.9	%	6,606			2.4	%
Provision for income taxes	556			0.1	%	(870		)	(0.3	)%
Net income	$	12,609		3.0	%	$	5,736		2.1	%

The following discussion and analysis of our results of operations should be read in conjunction with our condensed consolidated financial statements and the notes relating thereto, included in Item 1 of this Quarterly Report on Form 10-Q.

Revenue. Revenue increased51.1%, or $142.7 million, in the third quarter of 2019, compared to the same period in 2018. The increase in revenue was primarily due to revenue of $159.7 million from our acquired businesses, offset by a decrease in Renewable operations of $20.0 million due to certain project timelines being delayed.

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Cost of revenue. Cost of revenue increased46.3%, or $116.9 million, in the third quarter of 2019, compared to the same period in 2018, primarily due to the cost of revenue of $136.8 million from our acquired businesses, offset by a decrease in Renewable operations of $22.5 million due to the timing of projects year over year.

Gross profit. Gross profit increased95.8%, or $25.9 million, in the third quarter of 2019, compared to the same period in 2018. As a percentage of revenue, gross profit was 12.5% in the quarter, as compared to 9.7% in the prior-year period. The Company's gross profit margin increased primarily due to higher margins on Specialty Civil projects coupled with margin increases related to self-performing electrical work on Renewable projects.

Selling, general and administrative expenses. Selling, general and administrative expenses increased84.6%, or $14.3 million, in the third quarter of 2019, compared to the same period in 2018. Selling, general and administrative expenses were 7.4% of revenue in the third quarter of 2019, compared to 6.1% in the same period in 2018. The increase in selling, general and administrative expenses was primarily driven by $10.8 million related to our acquired businesses coupled with increased administrative labor expense of $5.2 million and intangible asset amortization of $1.5 million, offset by a decrease in merger and acquisition costs of $4.5 million.

Interest expense, net. Interest expense, net increased by $12.4 million, in the third quarter of 2019, compared to the same period in 2018. This increase was primarily driven by the increased borrowings under our lines of credit and term loan in the third and fourth quarter of 2018 related to the acquisitions the Company completed, coupled with accrued dividends on Series B Preferred Stock, which are recorded as interest expense.

Other income (expense). Other income increased by $6.3 million, in the third quarter of 2019, compared to the same period in 2018. The increase was primarily the result of the contingent liability fair value adjustment. See further discussion in Note 8. Fair Value of Financial Instruments included in Item 1 of this Quarterly Report on Form 10-Q.

Provision for income taxes. Income tax provision increased 163.9%, or $1.4 million, to an expense of $0.6 million in the third quarter of 2019, compared to $0.9 million of benefit for the same period in 2018. The effective tax rates for the period ended September 30, 2019 and 2018were (4.6)% and 13.2%, respectively. The lower effective tax rate in the third quarter of 2019 is primarily attributable to accrued dividends for the Series B Preferred Stock which are recorded as interest expense and not deductible for federal and state income taxes. There were no changes in uncertain tax positions during the periods ended September 30, 2019 and 2018.

Nine Months Ended September 30, 2019 and 2018

The following table reflects our consolidated results of operations in dollar and percentage of revenue terms for the periods indicated:

	Nine Months Ended September 30,
(in thousands)	2019					2018
Revenue	$	940,793		100.0	%	$	503,487		100.0	%
Cost of revenue	849,728			90.3	%	462,765			91.9	%
Gross profit	91,065			9.7	%	40,722			8.1	%
Selling, general and administrative expenses	84,945			9.0	%	43,122			8.6	%
Income from operations	6,120			0.7	%	(2,400		)	(0.5	)%
Interest expense, net	(35,822		)	(3.8	)%	(3,960		)	(0.8	)%
Other income	22,557			2.4	%	(1,848		)	(0.4	)%
Income (loss) from continuing operations before income taxes	(7,145		)	(0.8	)%	(8,208		)	(1.6	)%
Provision for income taxes	3,073			0.3	%	1,467			0.3	%
Net loss	$	(4,072	)	(0.4	)%	$	(6,741	)	(1.3	)%

Revenue. Revenue increased86.9%, or $437.3 million, in the first nine months of 2019, compared to the same period in 2018. The increase in revenue was primarily due to revenue of $404.4 million from our acquired businesses, coupled with increase from organic growth in our legacy heavy civil operations and approximately $16.5 million of growth in our Renewable

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operations. The Renewables business has also increased as the demand for renewable energy continues to rise due to the phaseout of the Production Tax Credit extension for wind. Projects that begin construction after December 31, 2019, will no longer be able to claim the credit.

Cost of revenue. Cost of revenue increased83.6%, or $387.0 million, in the first nine months of 2019, compared to the same period in 2018, primarily due to the cost of revenue of $361.9 million from our acquired businesses, coupled with approximately $8.3 million of growth in our Renewable operations.

Gross profit. Gross profit increased123.6%, or $50.3 million, in the first nine months of 2019, compared to the same period in 2018. As a percentage of revenue, gross profit increased to 9.7% in the first nine months of 2019, as compared to 8.1% in the prior-year period. The increase in margin was primarily related to increased gross profit from our acquired businesses of $42.5 million, coupled with a reduction of costs on a disputed project of $8.5 million in 2018. While the Company's gross profit margin increased period over period, it was negatively impacted at September 30, 2019 due to the continuing effort to complete the six projects affected by force majeure weather in the third and fourth quarter of 2018. These six projects created a 0.5% reduction to gross margin in 2019.

Selling, general and administrative expenses. Selling, general and administrative expenses increased by 97.0%, or $41.8 million in the first nine months of 2019, compared to the same period in 2018. Selling, general and administrative expenses were 9.0% of revenue in the first nine months of 2019, compared to 8.6% in the same period in 2018. The increase in selling, general and administrative expenses was primarily driven by $30.0 million related to our acquired businesses, coupled with increased administrative labor expense of $11.5 million and intangible asset amortization of $4.8 million, offset by a decrease in merger and acquisition costs of $8.5 million.

Interest expense, net. Interest expense, net increased by $31.9 million, in the first nine months of 2019, compared to the same period in 2018. This increase was primarily driven by the increased borrowings under our lines of credit and term loan in the third and fourth quarter of 2018 related to the acquisitions the Company completed, coupled with accrued dividends on Series B Preferred Stock, which are recorded as interest expense.

Other income (expense). Other income increased by $24.4 million, in the first nine months of 2019, compared to the same period in 2018. The increase was primarily the result of the contingent liability fair value adjustment. See further discussion in Note 8. Fair Value of Financial Instruments included in Item 1 of this Quarterly Report on Form 10-Q.

Provision for income taxes. Income tax benefit decreased by 109.5%, or $1.6 million, to a benefit of $3.1 million in the first nine months of 2019, compared to $1.5 million for the same period in 2018. The effective tax rates for the period ended September 30, 2019 and 2018were 43.0% and 15.8%, respectively. The higher effective tax rate in 2019 was primarily attributable to changes from permanent adjustments. There were no changes in uncertain tax positions during the periods ended September 30, 2019 and 2018.

Segment Results

The Company operated as one reportable segment for 2018 and evaluated the business as a renewable construction company. In late 2018, the Company completed two significant acquisitions that construct projects outside of the renewable market. As of September 30, 2019, we operate our business as two reportable segments: the Renewables segment and the Specialty Civil segment. The 2018 segment presentation has been recast to be consistent to the 2019 segmentation.

Each of our reportable segments is comprised of similar business units that specialize in services unique to the respective markets that each segment serves. Driving the end-user focused segments are differences in the economic characteristics of each segment; the nature of the services provided by each segment; the production processes of each segment; and the type or class of customer using the segment’s services.

The classification of revenue and gross profit for segment reporting purposes can at times require judgment on the part of management. Our segments may perform services across industries or perform joint services for customers in multiple industries. To determine reportable segment gross profit, certain allocations, including allocations of shared and indirect costs, such as facility costs, equipment expenses and indirect operating expenses, were made based on segment revenue.

The following is a brief description of the Company's reportable segments:

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The Renewables segment operates throughout the United States and specializes in a range of services that include full EPC project delivery, design, site development, construction, installation and restoration of infrastructure services for the wind and solar industries.

The Specialty Civil segment operates throughout the United States and specializes in a range of services that include:

• Heavy civil construction services such as high-altitude road and bridge construction, specialty paving, industrial maintenance and other local, state and government projects.

• Environmental remediation services such as site development, environmental site closure and outsourced contract mining and coal ash management services.

• Rail Infrastructure services such as planning, creation and maintenance of infrastructure projects for major railway and intermodal facilities construction.

Segment Revenue

Revenue by segment were as follows:

	Three months ended September 30,								Nine months ended September 30,
(in thousands)	2019				2018				2019				2018
Segment	Revenue		% of Total Revenue		Revenue		% of Total Revenue		Revenue		% of Total Revenue		Revenue		% of Total Revenue
Renewables	$	242,654	57.5	%	$	262,477	94.0	%	$	496,863	52.8	%	$	480,362	95.4	%
Specialty Civil	179,368		42.5	%	16,802		6.0	%	443,930		47.2	%	23,125		4.6	%
Total revenue	$	422,022	100.0	%	$	279,279	100.0	%	$	940,793	100.0	%	$	503,487	100.0	%

Segment Gross Profit

Gross profit by segment were as follows:

	Three months ended September 30,								Nine months ended September 30,
(in thousands)	2019				2018				2019				2018
Segment	Gross Profit		Gross Profit Margin		Gross Profit		Gross Profit Margin		Gross Profit		Gross Profit Margin		Gross Profit		Gross Profit Margin
Renewables	$	27,469	11.3	%	$	24,822	9.5	%	$	45,806	9.2	%	$	37,578	7.8	%
Specialty Civil	25,401		14.2	%	2,186.0		13.0	%	45,259		10.2	%	3,144		13.6	%
Total gross profit	$	52,870	12.5	%	$	27,008	9.7	%	$	91,065	9.7	%	$	40,722	8.1	%

Liquidity and Capital Resources

Overview

Historically, our primary sources of liquidity have been cash flows from operations, our cash balances and availability under our A&R Credit Agreement (as defined herein). Because we have experienced decreased liquidity due to the increase of our required payments and interest under our Third A&R Credit Agreement (as defined here in), acquisition integration costs and delayed collections for costs relating to the multiple severe weather events in the third quarter and fourth quarter of 2018, we sought additional sources of liquidity in 2019 as described above in “-Recent Developments.”

We believe these steps will continue to strengthen our balance sheet and provide the financial flexibility we need to execute our future business plan, supporting our recent growth and a larger, more diversified platform. There can be no assurance, however, that these steps will provide the intended benefits. Please see “Part II, Item 1A. Risk Factors.”

Our primary liquidity needs are for working capital, debt service, dividends on our Series A Preferred Stock and Series B-1 Preferred Stock and Series B-2 Preferred Stock (collectively referred to as Series B Preferred Stock“), income taxes,

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capital expenditures, insurance collateral, and strategic acquisitions. Following the closing of the transactions under the Third Equity Commitment Agreement. As of September 30, 2019, we had approximately $43.2 million in cash, and $29.0 million availability under our Third A&R Credit Agreement.

We anticipate that our existing cash balances, funds generated from operations, proceeds from the issuance of the Series B Preferred Stock and Series B-3 Preferred Stock, and borrowings will be sufficient to meet our cash requirements for the next twelve months. No assurance can be given, however, that these sources will be sufficient, because there are many factors which could affect our liquidity, including some which are beyond our control. Please see “Item 1A. Risk Factors” in Part II to this Quarterly Report on Form 10-Q.

Capital Expenditures

For the nine months ended September 30,2019, we incurred $5.6 million in cash purchases for equipment. We estimate that we will spend approximately two percent of revenue for capital expenditures for 2019 and 2020. Actual capital expenditures may increase or decrease in the future depending upon business activity levels, as well as ongoing assessments of equipment lease versus buy decisions based on short and long-term equipment requirements.

Working Capital

We require working capital to support seasonal variations in our business, primarily due to the effect of weather conditions on external construction and maintenance work and the spending patterns of our customers, both of which influence the timing of associated spending to support related customer demand. Our business is typically slower in the first quarter of each calendar year. Working capital needs are generally lower during the spring when projects are awarded and we receive down payments from customers. Conversely, working capital needs generally increase during the summer or fall months due to increased demand for our services when favorable weather conditions exist in many of the regions in which we operate. Again, working capital needs are typically lower and working capital is converted to cash during the winter months. These seasonal trends, however, can be offset by changes in the timing of projects, which can be affected by project delays or accelerations and/or other factors that may affect customer spending.

Generally, we receive 5% to 10% cash payments from our customers upon the inception of our Renewable projects. Timing of billing milestones and project close-outs can contribute to changes in unbilled revenue. As of September 30,2019, substantially all of our costs in excess of billings and earnings will be billed to customers in the normal course of business within the next twelve months. Net accounts receivable balances, which consist of contract billings as well as costs and earnings in excess of billings and retainage, increased to $354.0 million as of September 30,2019 from $272.5 million as of December 31, 2018, due primarily to higher levels of revenue, timing of project activity, and collection of billings to customers.

Our billing terms are generally net 30 days, and some of our contracts allow our customers to retain a portion of the contract amount (generally, from 5% to 10%) until the job is completed. As part of our ongoing working capital management practices, we evaluate opportunities to improve our working capital cycle time through contractual provisions and certain financing arrangements. Our agreements with subcontractors often may contain a ‘‘pay-if-paid’’ provision, whereby our payments to subcontractors are made only after we are paid by our customers.

Sources and Uses of Cash

Sources and uses of cash are summarized below:

	Nine Months Ended September 30,
(in thousands)	2019		2018
Net cash provided by (used in) operating activities	(55,473	)	31,635
Net cash provided by (used in) investing activities	1,586		(109,140	)
Net cash provided by (used in) financing activities	25,750		108,239

Operating Activities. Net cash used in operating activities for the nine months ended September 30, 2019 was $55.5 million, as compared to net cash provided by operating activities of $31.6 million over the same period in 2018. The decrease in net cash provided by operating activities reflects the timing of receipts from customers and payments to vendors in the ordinary course of business. The change is primarily attributable to $128.4 million related to the significant reduction of accounts payable and accrued liabilities.

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Investing Activities. Net cash provided by investing activities for the nine months ended September 30, 2019 was $1.6 million, as compared to net cash used by investing activities of $109.1 million over the same period in 2018. The increase in net cash provided by investing activities is primarily attributable to $106.6 million of cash used for acquisitions in 2018.

Financing Activities. Net cash provided by financing activities for the nine months ended September 30, 2019 was $25.8 million, as compared $108.2 million over the same period in 2018. The change of $82.4 million is primarily attributable to higher proceeds from long-term debt in 2018 of $330.9 million offset by lower merger recapitalization transaction costs of $28.6 million coupled with in 2019, lower debt payments of 108.6 million, proceeds from the issuance of Series B Preferred Stock of $100.0 million and proceeds from a sales leaseback transaction of $24.3 million.

Third A&R Credit Agreement

At closing of the CCS acquisition, IEA Services entered into a credit agreement for a new credit facility, which was amended and restated in connection with the closing of the William Charles acquisition, and was further amended and restated on November 16, 2018 (as amended and restated, the “A&R Credit Agreement”). The A&R Credit Agreement provided for a term loan facility of $300.0 million and a revolving line of credit of $50.0 million, which was available for revolving loans and letters of credit.

On May 20, 2019, the Third A&R Credit Agreement (the “Third A&R Credit Agreement”) became effective. The Third A&R Credit Agreement bifurcated the remaining principal amount of the initial term loan facility of $300.0 million (the “Initial Term Loan”) into two tranches: (i) the consenting lender term loan tranche (i.e., lenders that sign the Third A&R Credit Agreements) and (ii) the non-consenting lender term loan tranche (i.e., lenders that do not sign the Third A&R Credit Agreements). The Third A&R Credit Agreements leaves in place the revolving credit facility of $50.0 million (the “Initial Revolving Facility”), which provides for swing line loans of up to $20.0 million (“Swing Line Loans”) and standby and commercial letters of credit. Obligations under the Third A&R Credit Agreement are guaranteed by all of the present and future assets of the Company, Intermediate Holdings (as defined therein) and the Subsidiary Guarantors (as defined therein), subject to customary carve-outs.

Interest on the consenting lender term loan tranche accrues at a per annum rate of, at the Company's option, (x) LIBOR plus a margin of 8.25% or (y) an alternate base rate plus a margin of 7.25%; provided, however, that upon achieving a First Lien Net Leverage Ratio (as defined below) of no greater than 2.67:1.00, the margin shall permanently step down to (y) for LIBOR loans, 6.75% and (x) for alternative base rate loans, 5.75%. Interest on the non-consenting lender term loan tranche will stay at a per annum rate of, at the Company’s option, (x) LIBOR plus a margin of 6.25% or (y) an alternate base rate plus a margin of 5.25%. Interest on Initial Revolving Facility borrowings and Swing Line Loans accrues at a rate of, at the Company's option, (x) LIBOR plus a margin of 4.25% or (y) the applicable base rate plus a margin of 3.25%. Default interest will accrue on the obligations at the otherwise applicable rate plus 3%.

The Initial Revolving Facility is required to be repaid and terminated on September 25, 2023. Borrowings under the Initial Revolving Facility will be able to be paid and reborrowed. The Initial Term Loan will mature on September 25, 2024. Borrowings under the Initial Term Loan are required to be repaid on the last business day of each March, June, September and December, continuing with the first fiscal quarter following the effective date of the Third A&R Credit Agreement, in an amount equal to 2.5% of the initial balance of the Initial Term Loan and will not be able to be reborrowed.

Beginning with 2020, an additional annual payment of a percentage of Excess Cash Flow (as defined in the Third A&R Credit Agreement) over the prior year is required on the Initial Term Loan depending upon the First Lien Net Leverage Ratio as of the last day of such year. The First Lien Net Leverage Ratio is defined as the ratio of: (A) the excess of (i) consolidated total debt that, as of such date, is secured by a lien on any asset of property of the Company or any restricted subsidiary that is not expressly subordinated to the lien securing the obligations under the Third A&R Credit Agreement, over (ii) certain net cash as of such date not to exceed $50,000,000, to (B) consolidated EBITDA, calculated on a pro forma basis for the most recently completed measurement period. The required payment percentage of Excess Cash Flow depending upon the First Lien Net Leverage Ratio will be as follows:

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Required Payment Amount	Ratio
100% of Excess Cash Flow	Greater than 5.00 : 1.00
75% of Excess Cash Flow	Less than or equal to 5.00 : 1.00 but greater than 1.76 : 1.00
50% of Excess Cash Flow	Less than or equal to 1.76 : 1.00 but greater than 1.26 : 1.00
25% of Excess Cash Flow	Less than or equal to 1.26 : 1.00 but greater than 0.76 : 1.00
0% of Excess Cash Flow	Less than or equal to 0.76 : 1.00

Under the Third A&R Credit Agreement, the Company will be required to not permit the First Lien Net Leverage Ratio, as of the last day of any consecutive four fiscal quarter period to be greater than:

Measurement Period	Ratio
From and after fiscal quarter ending March 31, 2019 through December 31, 2019	4.75 : 1.00
From and after fiscal quarter ending March 31, 2020 through December 31, 2020	3.50 : 1.00
From and after fiscal quarter ending March 31, 2021 through December 31, 2021	2.75 : 1.00
From and after the fiscal quarter ending March 31, 2022	2.25 : 1.00

Under the Third A&R Credit Agreement, the Company is not able to utilize an equity infusion to cure a covenant violation in any quarter ending in 2019, excluding the Series B Preferred Stock. Thereafter, the Company will have access to a customary equity cure.

In addition, the Company and Borrower are subject to affirmative covenants, including, but not limited to, requiring (i) delivery of financial statements, budgets and forecasts; (ii) delivery of certificates and other information; (iii) delivery of notices (of any default, force majeure event, material adverse condition, ERISA event, material litigation or material environmental event); (iv) payment of tax obligations; (v) preservation of existence; (vi) maintenance of properties; (vii) maintenance of insurance; (viii) compliance with laws; (ix) maintenance of books and records; (x) inspection rights; (xi) use of proceeds; (xii) covenants to guarantee obligations and give security; (xiii) compliance with environmental laws; and (xiv) ongoing communication with the Lenders (as defined therein).

The Company and Borrower are also subject to additional negative covenants, some of which will include less flexibility than the corresponding negative covenants in the A&R Credit Agreement, including, but not limited to, restrictions (subject to certain exceptions) on (i) liens; (ii) indebtedness (including guarantees and other contingent obligations); (iii) investments (including loans, advances and acquisitions); (iv) mergers and other fundamental changes; (v) sales and other dispositions of property or assets; (vi) payments of dividends and other distributions and share repurchases; (vii) changes in the nature of the business; (viii) transactions with affiliates; (ix) burdensome agreements; (x) payments and modifications of certain debt instruments; (xi) changes in fiscal periods; (xii) amendments of organizational documents; (xiii) division/series transactions; and (xiv) sale and lease-back transactions.

Events of default under the Third A&R Credit Agreement include, but are not limited to, (i) failure to pay any principal or interest when due; (ii) any material breach of the representations and warranties made in the Third A&R Credit Agreement; (iii) failure to obverse or perform covenants; and (iv) certain events of bankruptcy and judgements. Upon any event of default, the Lenders will be permitted to cease making loans, declare the unpaid principal amount of all outstanding loans and all other obligations immediately due and payable, enforce liens and security interests, and exercise all other rights and remedies available under the loan documents or applicable law.

Series A Preferred Stock

As of September 30, 2019, we had 34,965 shares of Series A Preferred Stock outstanding, with each share having an initial stated value of $1,000 plus accumulated but unpaid dividends. Dividends are paid on the Series A Preferred Stock as, if and when declared by our Board. To the maximum extent permitted by the terms of the Series B Preferred Stock and the Third A&R Credit Agreement, dividends are required to be declared and paid in cash quarterly in arrears on each March 31, June 30, September 30 and December 31 on the stated value at the following rates:

•6% per annum from the original issuance of the Series A Preferred Stock on March 26, 2018 (the “Closing Date”) until the date (the “18 Month Anniversary Date”) that is 18 months from the Closing Date; and

•10% per annum during the period from and after the 18 Month Anniversary Date;

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So long as any shares of Series B Preferred Stock are outstanding or from and after the occurrence of any non-payment event or default event and until cured or waived, the foregoing rates will increase by 2% per annum.

If not paid in cash, dividends will accrue on the stated value and will increase the stated value on and effective as of the applicable dividend date without any further action by the Board at the following rates:

•8% per annum during the period from May 20, 2019 through the 18 Month Anniversary Date; and

•12% per annum during the period from and after the 18 Month Anniversary Date.

From and after the occurrence of any non-payment event or default event and until cured or waived, the foregoing will increase by two percent (2%) per annum.

The Series A Preferred Stock do not have a scheduled redemption date or maturity date. Subject to the terms of the Series B Preferred Stock, we may, at any time and from time to time, redeem all or any portion of the shares of Series A Preferred Stock then outstanding. As a condition to the consummation of any change of control (as described in the certificate governing the Series A Preferred Stock), we are required to redeem all shares of Series A Preferred Stock then outstanding. We are also required to use the net cash proceeds from certain transactions to redeem the maximum number of shares of Series A Preferred Stock that can be redeemed with such net cash proceeds, except as prohibited by the Third A&R Credit Agreement.

The dividends with respect to each share of Series A Preferred Stock for the dividend periods ended on December 31, 2018 are deemed to have accrued at a rate of 6%. The March 31, 2019, June 30, 2019 and until September 26, 2019, the dividends have accrued at a rate of 8% and all dividends have increased the stated value as of such respective dates. Following September 26, 2019, dividends accrued at a rate of 12% annum and if our business does not generate enough cash to make the cash dividends, the dividends will accrue at that rate and increase the stated value of the Series A Preferred Stock, which will make cash dividends on the Series A Preferred Stock more difficult for us to make in the future. We do not presently expect to pay cash dividends, although an actual decision regarding payment of cash dividends on the Series A Preferred Stock will be made at the time of the applicable dividend payment based upon availability of capital resources, business conditions, other cash requirements, and other relevant factors.

We expect that 50% of the issued and outstanding Series A Preferred Stock will be exchanged for Series B-3 Preferred Stock and Warrants at the Initial Closing under the Third Equity Commitment Agreement. Please see “Recent Developments-Preferred Stock Exchange Agreement.”

Series B Preferred Stock

As of September 30, 2019, we had 100,000 shares of Series B Preferred Stock outstanding, with each share having an initial stated value of $1,000 plus accumulated but unpaid dividends. Our common stock and Series A Preferred Stock are junior to the Series B Preferred Stock. Dividends are paid on the Series B Preferred Stock when declared by our Board. To the extent not prohibited by applicable law, dividends are required to be declared and paid in cash quarterly in arrears on each March 31, June 30, September 30 and December 31 at the following rates:

• On Series B-1 Preferred Stock with respect to any dividend period for which the Total Net Leverage Ratio (as defined in the Third A&R Credit Agreement (as defined herein)) is greater than 1.50 to 1.00, 15% per annum (or 13.5% per annum if a deleveraging event (as defined in the certificate governing the Series B Preferred Stock)) has occurred prior to the date dividends are paid with respect to such dividend period) and (ii) with respect to any dividend period for which the Total Net Leverage Ratio is less than or equal to 1.50 to 1.00, 13.5% per annum. 

• On Series B-2 Preferred Stock with respect to any dividend period for which the Total Net Leverage Ratio is greater than 1.50 to 1.00, 15% per annum (or 13.5% per annum if a deleveraging event has occurred prior to the date dividends are paid with respect to such dividend period) and (ii) with respect to any dividend period for which the Total Net Leverage Ratio is less than or equal to 1.50 to 1.00, 12% per annum.

If not paid in cash, dividends will accrue on the stated value and will increase the stated value on and effective of the applicable dividend date without any further action by the Board at a rate of 18% per annum; provided that, during the period from the occurrence of a deleveraging event until the date that is two years from the occurrence of such deleveraging event, such dividend rate shall instead be fifteen percent (15%) per annum; provided, further, that, from and after the occurrence of any non-payment event or default event and until cured or waived, the foregoing rates will increase by two percent (2%) per annum.

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Until the Series B Preferred Stock is redeemed, neither we nor any of our subsidiaries can declare, pay or set aside any dividends on shares of any other class or series of capital stock, except in limited circumstances. We are required to redeem all shares of Series B Preferred Stock outstanding on February 15, 2025 at the then stated value plus all accumulated and unpaid dividends thereon through the day prior to such redemption. Subject to compliance with the terms of any credit agreement, we are also required to redeem all of the Series B Preferred Stock as a condition to the consummation of certain changes in control (as defined in certificate governing the Series B Preferred Stock), as well as use the net cash proceeds from certain transactions to redeem shares of Series B Preferred Stock.

The September 30, 2019 dividends have accrued at a rate of 18% and the dividend has increased the stated value as of such that respective date. If our business does not generate enough cash to make the cash dividends, the dividends will accrue at a rate of 18% and increase the stated value of the Series B Preferred Stock, which will make cash dividends on the Series B Preferred Stock more difficult for us to make in the future. We do not presently expect to pay cash dividends, although an actual decision regarding payment of cash dividends on the Series B Preferred Stock will be made at the time of the applicable dividend payment based upon availability of capital resources, business conditions, other cash requirements, and other relevant factors.

We expect to issue 80,000 shares of Series B-3 Preferred Stock in connection with the closing of the transaction under the Third Equity Commitment Agreement. Please see “Recent Developments-Third Equity Commitment Agreement.”

Letters of Credit and Surety Bonds

In the ordinary course of business, the Company is required to post letters of credit and surety bonds to customers in support of performance under certain contracts. Such letters of credit are generally issued by a bank or similar financial institution. The letter of credit or surety bond commits the issuer to pay specified amounts to the holder of the letter of credit or surety bond under certain conditions. If the letter of credit or surety bond issuer were required to pay any amount to a holder, the Company would be required to reimburse the issuer, which, depending upon the circumstances, could result in a charge to earnings. As of September 30, 2019 and December 31, 2018, the Company was contingently liable under letters of credit issued under its revolving credit facility or its old credit facility, respectively, in the amount of $21.0 million and $3.0 million, respectively, related to projects. In addition, as of September 30, 2019 and December 31, 2018, the Company had outstanding surety bonds on projects of $2,017.6 million and $1,682 million, respectively, including the bonding line of the acquired ACC Companies and Saiia.

Contractual Obligations

The following table sets forth our contractual obligations and commitments for the periods indicated as of September 30,2019.

	Payments due by period
(in thousands)	Total		Remainder of 2019		2020		2021		2022		2023		Thereafter
Debt (principal) (1)	385,643		7,988		30,824		30,110		29,711		29,419		257,591
Debt (interest) (2)	110,170		7,488		27,584		24,356		21,234		18,130		11,378
Capital leases (3)	73,908		5,977		25,164		21,716		17,565		3,486		—
Operating leases (4)	51,180		2,486		9,066		7,158		5,683		3,990		22,797
Total	$	620,901	$	23,939	$	92,638	$	83,340	$	74,193	$	55,025	$	291,766

(1) Represents the contractual principal payment due dates on our outstanding debt, including the convertible debt - Series B Preferred with expected redemption date of February 15, 2025. Future declared dividends have been excluded, as payment determination will be evaluated each quarter resulting in differing accumulated dividend rates.

(2) Includes variable rate interest using September 30, 2019 rates.

(3) We have obligations, exclusive of associated interest, recognized under various capital leases for equipment totaling $73.9 million at September 30, 2019. Net amounts recognized within property, plant and equipment, net in the consolidated balance sheet under these capitalized lease agreements at September 30, 2019 totaled $90.3 million.

(4) We lease real estate, vehicles, office equipment and certain construction equipment from unrelated parties under non-cancelable leases. Lease terms range from month-to-month to terms expiring through 2038. The increase from December 31, 2018 is related to two sale leaseback transactions on property acquired through the acquisitions.

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For detailed discussion and additional information pertaining to our debt instruments, see Note 9. Debt in the Notes to condensed consolidated financial statements, included in Item 1.

Off-Balance Sheet Arrangements

As is common in our industry, we have entered into certain off-balance sheet arrangements in the ordinary course of business. Our significant off-balance sheet transactions include liabilities associated with non-cancelable operating leases, letter of credit obligations, surety and performance and payment bonds entered into in the normal course of business, liabilities associated with deferred compensation plans, liabilities associated with certain indemnification and guarantee arrangements. See Note 10. Commitments and Contingencies in the Notes to condensed consolidated financial statements, included in Item 1 of this Quarterly Report on Form 10-Q, for discussion pertaining to our off-balance sheet arrangements. See Note 1. Business, Basis of Presentation and Summary of Significant Accounting Policies and Note 14. Related Party Transactions in the Notes to condensed consolidated financial statements, included in Item 1, for discussion pertaining to certain of our investment arrangements.

Backlog

For companies in the construction industry, backlog can be an indicator of future revenue streams. Estimated backlog represents the amount of revenue we expect to realize from the uncompleted portions of existing construction contracts, including new contracts under which work has not begun and awarded contracts for which the definitive project documentation is being prepared, as well as revenue from change orders and renewal options. Estimated backlog for work under fixed price contracts and cost-reimbursable contracts is determined based on historical trends, anticipated seasonal impacts, experience from similar projects and estimates of customer demand based on communications with our customers. Cost-reimbursable contracts are included in backlog based on the estimated total contract price upon completion.

As of September 30, 2019 and December 31, 2018, our total backlog was approximately $2.6 billion and $2.1 billion, respectively, compared to $1.3 billion as of September 30, 2018. The $1.3 billion increase is primarily related to $444.6 million of backlog related to our acquisitions coupled with $855.4 million of an increase in backlog related to our legacy IEA business. The Company expects to recognize revenue related to its backlog of 19% for the remainder of 2019, 57% in 2020, and 24% in 2021.

The following table summarizes our backlog by segment for September 30, 2019:

(in millions)
Segments	September 30, 2019		December 31, 2018
Renewables	1,865.5		1,246.8
Specialty Civil	684.7		868.8
Total	$	2,550.2	$	2,115.6

Based on historical trends in the Company’s backlog, we believe awarded contracts to be firm and that the revenue for such contracts will be recognized over the life of the project. Timing of revenue for construction and installation projects included in our backlog can be subject to change as a result of customer delays, regulatory factors and/or other project-related factors. These changes could cause estimated revenue to be realized in periods later than originally expected, or not at all. In the past, we have occasionally experienced postponements, cancellations and reductions on construction projects, due to market volatility and regulatory factors. There can be no assurance as to our customers’ requirements or the accuracy of our estimates. As a result, our backlog as of any particular date is an uncertain indicator of future revenue and earnings.

Backlog is not a term recognized under GAAP, although it is a common measurement used in our industry. Our methodology for determining backlog may not be comparable to the methodologies used by others. See ‘‘Item 1A. Risk Factors’’ in our Annual Report on Form 10-K filed with the SEC on March 14, 2019 for a discussion of the risks associated with our backlog.

Recently Issued Accounting Pronouncements

See Note 1. Business, Basis of Presentation and Summary of Significant Accounting Policies in the Notes to Condensed Consolidated Financial Statements, included in Item 1.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Credit Risk

We are subject to concentrations of credit risk related to our net receivable position with customers, which includes amounts related to billed and unbilled accounts receivable and costs and earnings in excess of billings (‘‘CIEB’’) on uncompleted contracts net of advanced billings with the same customer. We grant credit under normal payment terms, generally without collateral, and as a result, we are subject to potential credit risk related to our customers’ ability to pay for services provided. This risk may be heightened if there is depressed economic and financial market conditions. However, we believe the

concentration of credit risk related to billed and unbilled receivables and costs and estimated earnings in excess of billings on uncompleted contracts is limited because of the diversity of our customers.

Interest Rate Risk

Borrowings under the new credit facility and certain other borrowings are at variable rates of interest and expose us to interest rate risk. If interest rates increase, our debt service obligations on the variable rate indebtedness will increase even though the amount borrowed remains the same, and our net income and cash flows, including cash available for servicing our indebtedness, will correspondingly decrease. The outstanding debt balance as of September 30,2019 was 385.6 million. A one hundred basis point change in the LIBOR rate would increase or decrease interest expense by $3.9 million. As of September 30,2019, we had no derivative financial instruments to manage interest rate risk.

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Item 4. Control and Procedures

Attached as exhibits to this Quarterly Report on Form 10-Q are certifications of IEA’s Chief Executive Officer and Chief Financial Officer that are required in accordance with Rule 13a-14 of the Exchange Act of 1934. This section includes information concerning the controls and controls evaluation referred to in the certifications, and it should be read in conjunction with the certifications.

Evaluation of Disclosure Controls and Procedures

Our management has established and maintains a system of disclosure controls and procedures that are designed to provide reasonable assurance that information required to be disclosed by us in the reports that we file or submit under the Exchange Act, such as this Quarterly Report, is recorded, processed, summarized and reported within the time periods specified in the SEC rules and forms. The disclosure controls and procedures are also designed to provide reasonable assurance that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

As of the end of the period covered by this Quarterly Report, we evaluated the effectiveness of the design and operation of our disclosure controls and procedures pursuant to Rule 13a-15(b) of the Exchange Act. This evaluation was carried out under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer. Based on this evaluation, these officers have concluded that, as of September 30, 2019, our disclosure controls and procedures were effective.

Changes in Internal Control over Financial Reporting

There has been no change in our internal control over financial reporting during the quarter ended September 30, 2019, that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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Part II. OTHER INFORMATION

Item 1A. Risk Factors

At September 30, 2019, there have been no other material changes from the risk factors previously disclosed in the Company's Annual Report on Form 10-K filed with the SEC on March 14, 2019, which is accessible on the SEC's website at www.sec.gov, except as described in our Quarterly Report on Form 10-Q for the quarters ended March 31, 2019 and June 30, 2019 and below.

The transactions under the Third Equity Commitment Agreement are subject to material closing conditions. We cannot provide any assurance that we will be able to consummate the transactions under the Third Equity Commitment Agreement.

As described above, the Company entered into the Third Equity Commitment Agreement on October 29, 2019 pursuant to which the Company agreed to issue and sell 80,000 shares of Series B-3 Preferred Stock and 3,568,750 Warrants to Ares for an aggregate purchase price of $80.0 million (the “Initial Closing”). Consummation of the Initial Closing is expected to occur within 12 business days of the execution of the Third Equity Commitment Agreement.

After the Initial Closing, two third parties to the Third Equity Commitment Agreement are each required, subject to certain conditions, to purchase up to an additional 15,000 shares (collectively 30,000 shares) of Series B-3 Preferred Stock and 515,625 Warrants (collectively 1,031,250 Warrants), if, by certain agreed upon dates, the Company has not repaid at least an additional $30.0 million under its term loan using excess cash and proceeds from the Rights Offering.

The Initial Closing under the Third Equity Commitment Agreement is subject to various material closing conditions, including, but not limited to, that no material adverse effect shall have occurred, the receipt of applicable government approvals, no law or order being an impediment to consummation of the transactions, accuracy of the representations and warranties set forth in the Equity Commitment Agreement, compliance with covenants, review by NASDAQ, the closing of the transactions under the Exchange Agreement (as defined below), the filing of a certificate of designation for the Series B-3 Preferred Stock, the filing of an amended and restated certificate of designations for the Series B-1 Preferred Stock and Series B-2 Preferred Stock with the Secretary of State of the State of Delaware, and the Company’s payment of expenses. There can be no assurance that we will be able to consummate the Initial Closing under the Third Equity Commitment Agreement. Furthermore, there can be no assurance that even if the Initial Closing is consummated, that we will be able to consummate the additional issuances of Series B-3 Preferred Stock and Warrants.

Our common stockholders may face substantial dilution as a result of warrants.

On May 20, 2019, under the First Equity Commitment Agreement, we issued Warrants exercisable into an aggregate of 2,545,934 shares of common stock, which equaled approximately ten percent (10%) of our fully diluted issued and outstanding common stock as of such date. In addition to the Warrants issued on May 20, 2019, we are required to issue under the First Equity Commitment Agreement additional Warrants:

• for up to an additional six percent (6.0%) of the fully diluted issued and outstanding common stock depending upon our financial performance measured on the last calendar day of May 2020 through the last calendar day of April 2021;

• upon the issuance of additional shares of common stock under the merger agreement from our business combination;

• upon conversion of Series A Preferred Stock into common stock;

• upon the exercise of certain existing Warrants; and

• upon exercises by third parties of equity issued under the Company’s long term incentive plan.

On August 30, 2019, under the Second Equity Commitment Agreement, we issued Warrants exercisable into an aggregate of 900,000 shares of common stock. In addition to the Warrants issued on August 30, 3019, are required to issue under the Second Equity Commitment Agreement additional Warrants:

• for up to an additional 6% of the fully diluted issued and outstanding common stock depending upon our financial performance measured on the last calendar day of May 2020 through the last calendar day of April 2021.

• upon the issuance of additional shares of common stock under the merger agreement from our business combination;

• upon conversion of Series A Preferred Stock into common stock;

• upon the exercise of certain existing Warrants; and

• upon exercises by third parties of equity issued under the Company’s long term incentive plan

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We also expect to issue 3,568,750 Warrants in connection with the Initial Closing under the Third Equity Commitment Agreement. In addition to the Warrants issued at the Initial Closing under the Third Equity Commitment Agreement, we may be required to issue additional Warrants:

• upon the issuance of additional shares of common stock under the merger agreement from our business combination;

• upon conversion of Series A Preferred Stock into common stock;

• upon the exercise of certain existing Warrants;

• upon exercises by third parties of equity issued under the Company’s long term incentive plan;

• for additional issuances of common stock during certain periods specified in the Third Equity Commitment Agreement; and

• for issuance of additional Warrants issued under the First Equity Commitment Agreement.

We may also be required to issue further 1,031,250 Warrants in connection with further commitments under the Third Equity Commitment Agreement as described above.

In certain instances, the timing and number of additional Warrants that may be issued is unknown and dependent upon future events and circumstances, some of which are outside of our control.

The Warrants issued under the First Equity Commitment Agreement and Second Equity Commitment Agreement are, and we expect the Warrants to be issued under the Third Equity Commitment Agreement to be, exercisable into our common stock at an exercise price per share of $0.0001, which the holder may pay by check or wire transfer, or by instructing us to withhold a number of shares of common stock then issuable upon exercise of the Warrant with an aggregate fair market value as of the date of exercise equal to the aggregate exercise price, or any combination of the foregoing. The number of shares of common stock issuable upon exercise of the Warrants adjust for dividends, subdivisions or combinations; cash distributions or other distributions; reorganization, reclassification, consolidation or merger; and spin-offs.

The shares of common stock that may be issued under the Warrants pursuant to the First Equity Commitment Agreement and Second Equity Commitment Agreement are subject to that certain Amended and Restated Registration Rights Agreement, dated March 26, 2018, as amended (the “Registration Rights Agreement”), and accordingly, we may be required to register the shares of common stock underlying the Warrants for resale. We also anticipate that the Warrants issued under the Third Equity Commitment Agreement will be subject to registration rights under an amendment to the Registration Rights Agreement.

Accordingly, our presently existing Warrants and Warrants that may be issued in the future may result in substantial additional issuances and resales of common stock. Additional issuances of common stock, and/or sales of common stock, would have the effect of diluting our earnings per share as well as our existing shareholders’ individual ownership percentages and could lead to volatility in our common stock price. Sales of a substantial number of shares of our common stock could depress the market price of our common stock and impair our ability to raise capital through the sale of additional equity or equity-linked securities.

The Series A Preferred Stock may result in substantial dilution to holders of our common stock.

As of September 30, 2019, we had 34,965 shares of Series A Preferred Stock outstanding. Any holder of Series A Preferred Stock may elect, by written notice to us (w) at any time and from time to time on or after the third anniversary of the initial issuance of the Series A Preferred Stock (the “Closing Date”), (x) at any time and from time to time if the terms of the Series B Preferred Stock or Third A&R Credit Agreement (or other facility) would prohibit the payment of cash dividends, (y) at any time any shares of Series B Preferred Stock are outstanding, or (z) at any time and from time to time on or after the non-payment of dividends when due, failure to redeem shares of Series A Preferred Stock when required or any other material default (in each case, as further specified in the certificate) until such non-payment, failure or default is cured by us, to cause us to convert, without the payment of additional consideration by such holder, all or any portion of the issued and outstanding shares of Series A Preferred Stock held by such holder, as specified by such holder in such notice, into a number of shares of common stock determined by dividing (i) the stated value by (ii) the VWAP per share of common stock for the 30 consecutive trading days ending on the trading day immediately preceding the conversion date. In the event the Series A Preferred Stock is converted following an uncured non-payment, failure or default event, or if a holder of Series A Preferred Stock is converting pursuant to (x) or (y) above, for the purposes of the foregoing calculation, VWAP per share shall be multiplied by 90%. The “VWAP per share” is defined as the per share volume-weighted average price as reported by Bloomberg (as further described in the certificate governing the Series A Preferred Stock).

The shares of common stock that may be issued upon conversion of the Series A Preferred Stock are subject to the Registration Rights Agreement, and accordingly, we may be required to register the shares of common stock underlying the Series A Preferred Stock for resale.

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Accordingly, the Series A Preferred Stock may result in substantial additional issuances and resales of common stock. The timing and number of shares of common stock that may be issued as a result of the Series A Preferred Stock is unknown and dependent upon future events and circumstances, some of which are outside of our control. Additional issuances of common stock, and/or sales of common stock, would have the effect of diluting our earnings per share as well as our existing shareholders’ individual ownership percentages and could lead to volatility in our common stock price. Sales of a substantial number of shares of our common stock could depress the market price of our common stock and impair our ability to raise capital through the sale of additional equity or equity-linked securities.

Although Oaktree, as the holder of all of the Series A Preferred Stock, has agreed to exchange 50% of its Series A Preferred Stock for Series B-3 Preferred Stock, the remaining outstanding Series A Preferred Stock may still result in substantial dilution.

Our Third A&R Credit Agreement, the Series A Preferred Stock and Series B-1 and Series B-2 Preferred Stock impose restrictions on us that may prevent us from engaging in transactions that might benefit us.

The Third A&R Credit Agreement contains restrictions that, among other things prevents or restricts us from:

• engaging in certain transactions with affiliates;

• buying back shares or paying dividends in excess of specified amounts;

• making investments and acquisitions in excess of specified amounts;

• incurring additional indebtedness in excess of specified amounts;

• creating certain liens against our assets;

• prepaying subordinated indebtedness;

• engaging in certain mergers or combinations;

• failing to satisfy certain financial tests; and

• engaging in transactions that would result in a ‘‘change of control.’’

Additionally, the holders of our Series A Preferred Stock and Series B-1 and B-2 Preferred Stock have the right to consent to certain actions prior to us undertaking them, including, but not limited to:

• creating or authorizing any senior stock, parity stock and stock that votes together with the Series A Preferred Stock or Series B Preferred Stock, or capital stock of a subsidiary;

• reclassifications, alterations or amendments of any of our capital stock or of our subsidiaries that would render such capital stock senior or on parity to the Series A Preferred Stock or Series B Preferred Stock;

• entering into any agreement with respect to, or consummating, any merger, consolidation or similar transaction with any other person pursuant to which we our a subsidiary of ours would not be the surviving entity, if as a result of such transaction, any capital stock or equity or equity-linked securities of such person would rank senior to or pari passu with the Series A Preferred Stock or Series B Preferred Stock;

• entering certain agreements with respect to, or consummating, any merger, consolidation or similar transaction with any other person pursuant to which we or a subsidiary of ours would not be the surviving entity, if as a result of such transaction, any capital stock or equity or equity-linked securities of such person would rank senior to or on parity with such Series A Preferred Stock or Series B Preferred Stock;

• assuming, incurring or guarantying, or authorizing the creation, assumption, incurrence or guarantee of, any indebtedness for borrowed money (subject to certain exceptions);

• authorizing or consummating certain change of control events or liquidation events; or

• altering, amending, supplementing, restating, waiving or otherwise modifying the certificates governing the Series A Preferred Stock or Series B Preferred Stock or any other of our documents in a manner that would reasonably be expected to be materially adverse to the rights or obligations of the holders of Series A Preferred Stock or Series B Preferred Stock.

The Series B-3 Preferred Stock to be issued under the Third Equity Commitment Agreement will contain additional consent rights, including with respect to:

• increasing the size of the Board;

• conducting any business or enter into or conduct any transaction or series of transaction with, or for the benefit of, any affiliate of the Company, subject to limitations;

• entering into any transaction, contract, agreement or series of related transactions, contracts, or agreement with respect to the provision of services to customers exceeding certain amounts; or

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• with respect to SAIIA Holdings, LLC (“SAIIA”), subject to certain limitations: (i) entering into any agreement with respect to, or consummate any, merger, consolidation or similar transaction with SAIIA or any of its subsidiaries, (ii) assuming, incurring or guaranteeing, or authorizing the creation, assumption, incurrence or guarantee of any indebtedness by, or for the benefit of SAIIA or any of its subsidiaries, (iii) creating, incurring, assuming or suffering to exist any lien upon or with respect to any property or assets for the benefit of SAIIA or any of its subsidiaries or security any obligations of SAIIA or any of its subsidiaries above certain limits, (iv) consummating any sale, lease, transfer, issuance or other disposition, including by means of a merger, consolidation or similar transaction, of any shares of capital stock of a subsidiary or any other assets of the Company or any subsidiary to SAIIA or any of its subsidiaries, or (v) subject to certain exceptions, making any advance, loan, extension of credit or capital contribution to, or purchase any capital stock, bonds, notes, debentures or other debt securities of SAIIA or any of its subsidiaries.

Accordingly, provisions in the Third A&R Credit Agreement that restrict our business could make compliance with the terms and conditions of the Third A&R Credit Agreement more difficult. Furthermore, provisions in the Third A&R Credit Agreement, as well as rights of holders of the Series A Preferred Stock and Series B Preferred Stock and in the future, the Series B-3 Preferred Stock could impact our ability to engage in transactions we deem beneficial.

Our liquidity remains constrained and we could require additional sources of liquidity in the future to fund our operations and service our indebtedness.

We have experienced decreased liquidity due to the increase of our required payments and interest under our Third A&R Credit Agreement, acquisition integration costs and delayed collections for costs relating to the multiple severe weather events in the third quarter and fourth quarter of 2018. Although we have taken steps to enhance our liquidity, our liquidity remains constrained.

We anticipate that our existing cash balances, funds generated from operations, proceeds from the issuance of the Series B Preferred Stock and the Series B-3 Preferred Stock and borrowings will be sufficient to meet our cash requirements for the next twelve months, but we cannot provide any assurance that these sources will be sufficient because there are many factors that could affect our liquidity, including some that are beyond our control. Factors that could cause our future liquidity to vary materially from expectations include, but are not limited to, weather events, bonding obligations, contract disputes with customers, loss of customers, spending patterns of customers, unforeseen costs and expenses and our ability to maintain compliance with the covenants and restrictions in our Third A&R Credit Agreement (or obtain waivers in the event of non-compliance). If we encounter circumstances that place unforeseen constraints on our capital resources, we will be required to take additional measures to conserve or enhance liquidity.

In the future, we may require additional funds for operating purposes and may seek to raise additional funds through debt or equity financing. If we ever need to seek additional financing, there is no assurance that this additional financing will be available, or if available, will be on reasonable terms. If our liquidity and capital resources are insufficient to meet our working capital requirements or fund our debt service obligations, we could face substantial liquidity problems, may not be able to generate sufficient cash to service all our indebtedness and may be forced to take other actions to satisfy our obligations under our indebtedness, which may not be successful. In the event we are not able to fund our working capital, we will not be able to implement or may be required to delay all or part of our business plan, and our ability to improve our operations, generate positive cash flows from operating activities and expand the business would be materially adversely affected.

If our results of operations were negatively impacted by unforeseen factors, or impacted to a greater degree than anticipated, we might not be able to maintain compliance with the covenants and restrictions in our Third A&R Credit Agreement. If we are unable to comply with the financial covenants in the future, and are unable to obtain a waiver or forbearance, it would result in an uncured default under the Third A&R Credit Agreement. If a default under the Third A&R Credit Agreement were not cured or waived, we would be unable to borrow under the Third A&R Credit Agreement and the indebtedness thereunder could be declared immediately due and payable. If we were unable to borrow under the Third A&R Credit Agreement, we would need to meet our capital requirements using other sources. Alternative sources of liquidity may not be available on acceptable terms if at all. Even if we were able to obtain an amendment, forbearance agreement or waiver in the future, we might be required to agree to other changes to the Third A&R Credit Agreement, including increased interest rates or premiums, more restrictive covenants and/or pay a fee for such amendment, forbearance agreement or waiver. Any of these events would have a material adverse effect on our business, financial condition and liquidity.

Our stock price has experienced significant volatility.

Our stock price has declined significantly since the third quarter of 2018, and has exhibited substantial volatility in 2019, including following our press releases on August 14, 2019 and October 9, 2019. Our price may fluctuate in response to a number of events and factors, including, but not limited to:

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•actual or anticipated quarterly operating results;

•new developments and significant transactions;

•the financial projections we provide to the public, and any changes to the projections or failure to meet the projections;

•changes in our credit ratings;

•the public’s reaction to our press releases, other public announcements and filings with the SEC;

•changes in financial estimates, recommendations and coverages by securities analysts;

•media coverage of our business and financial performance;

•trends in our industry;

•significant changes in our management;

•lawsuits threatened or filed against us; and

•general economic conditions.

Price volatility over a given period or a low stock price may result in a number of negative outcomes, including, but not limited to:

• creating potential limitations on the ability to raise capital through the issuance of equity or equity linked securities;

• impacting the value of our equity compensation, which affects our ability to recruit and retain employees;

• decreasing the value of the contingent earn-out related to our merger agreement, held in large part by members of management, which could cause a decline in job satisfaction or lead to management turnover;

• difficulty complying with the listing standards of NASDAQ; and

• increasing the risk of regulatory proceedings and litigation, including class action securities litigation.

If any of these outcomes were to occur, it could materially and adversely affect our business, financial condition, or results of operations, and the value of your investment.

45

Item 3. Defaults Upon Senior Securities

The information relating to the accrual of dividends on the Series A Preferred Stock and Series B Preferred Stock, as well as the total arrearage as of September 30, 2019 is included in Note 3. Earnings Per Share, to Part I, Item 1, and incorporated in this Part II, Item 3 by reference.”

Item 6. Exhibits

(a)    Exhibits.

Exhibit Number	Description
2.1#	Agreement and Plan of Merger, dated as of November 3, 2017, by and among the Company, IEA Energy Services LLC, Wind Merger Sub I, Inc., Wind Merger Sub II, LLC, Infrastructure and Energy Alternatives, LLC, Oaktree Power Opportunities Fund III Delaware, L.P., solely in its capacity as the representative of the seller, and, solely for purposes of Section 10.3 thereof, and, to the extent related thereto, Article 12 thereof, M III Sponsor I LLC and M III Sponsor I LP (incorporated by reference to Exhibit 2.1 to the Company’s Amendment No. 1 to its Current Report on Form 8-K (File No. 001-37796) filed November 8, 2017).
2.2	Amendment No. 1 to the Agreement and Plan of Merger, dated as of November 15, 2017, by and among IEA Energy Services LLC, M III Acquisition Corp., Wind Merger Sub I, Inc., Wind Merger Sub II, LLC, Infrastructure and Energy Alternatives, LLC, Oaktree Power Opportunities Fund III Delaware, L.P., solely in its capacity as the representative of the seller, and solely for purposes of Section 10.3 thereof, and, to the extent related thereto, Article 12 thereof, M III Sponsor I LLC and M III Sponsor I LP (incorporated by reference to Exhibit 2.2 to the Company’s Current Report on Form 8-K (File No. 001-37796) filed November 21, 2017).
2.3	Amendment No. 2 to the Agreement and Plan of Merger, dated as of December 27, 2017, by and among IEA Energy Services LLC, M III Acquisition Corp., Wind Merger Sub I, Inc., Wind Merger Sub II, LLC, Infrastructure and Energy Alternatives, LLC, Oaktree Power Opportunities Fund III Delaware, L.P., solely in its capacity as the representative of the seller, and solely for purposes of Section 10.3 thereof, and, to the extent related thereto, Article 12 thereof, M III Sponsor I LLC and M III Sponsor I LP (incorporated by reference to Exhibit 2.3 to the Company’s Current Report on Form 8-K (File No. 001-37796) filed January 2, 2018).
2.4	Amendment No. 3 to the Agreement and Plan of Merger, dated as of January 9, 2018, by and among IEA Energy Services LLC, M III Acquisition Corp., Wind Merger Sub I, Inc., Wind Merger Sub II, LLC, Infrastructure and Energy Alternatives, LLC, Oaktree Power Opportunities Fund III Delaware, L.P., solely in its capacity as the representative of the seller, and solely for purposes of Section 10.3 thereof, and, to the extent related thereto, Article 12 thereof, M III Sponsor I LLC and M III Sponsor I LP (incorporated by reference to Exhibit 2.4 to the Company’s Current Report on Form 8-K (File No. 001-37796) filed January 10, 2018).
2.5	Amendment No. 4 to the Agreement and Plan of Merger, dated as of February 7, 2018, by and among IEA Energy Services LLC, M III Acquisition Corp., Wind Merger Sub I, Inc., Wind Merger Sub II, LLC, Infrastructure and Energy Alternatives, LLC, Oaktree Power Opportunities Fund III Delaware, L.P., solely in its capacity as the representative of the seller, and solely for purposes of Section 10.3 thereof, and, to the extent related thereto, Article 12 thereof, M III Sponsor I LLC and M III Sponsor I LP (incorporated by reference to Exhibit 2.5 to the Company’s Current Report on Form 8-K (File No. 001-37796) filed February 9, 2018).
2.6	Amendment No. 5 to the Agreement and Plan of Merger, dated as of March 8, 2018, by and among IEA Energy Services LLC, M III Acquisition Corp., Wind Merger Sub I, Inc., Wind Merger Sub II, LLC, Infrastructure and Energy Alternatives, LLC, Oaktree Power Opportunities Fund III Delaware, L.P., solely in its capacity as the representative of the seller, and solely for purposes of Section 10.3 thereof, and, to the extent related thereto, Article 12 thereof, M III Sponsor I LLC and M III Sponsor I LP (incorporated by reference to Exhibit 2.6 to the Company’s Current Report on Form 8-K (File No. 001-37796) filed March 8, 2018).
2.7	Purchase and Sale Agreement, dated August 9, 2018, by and among IEA Energy Services LLC, Consolidated Construction Solutions I LLC and Consolidated Construction Investment Holdings LLC (incorporated by reference to Exhibit 2.1 to the Company’s Amendment to the Current Report on Form 8-K/A (File No. 001-37796) filed August 14, 2018).
2.8#	Equity Purchase Agreement, dated October 12, 2018, by and among IEA Energy Services LLC, William Charles Construction Group and the owners thereof (incorporated by reference to Exhibit 2.1 to the Company’s Amendment to the Current Report on Form 8-K/A (File No. 001-37796) filed October 15, 2018).
2.9	Amendment No. 1 to Equity Purchase Agreement, dated October 31, 2018, by and among IEA Energy Services LLC, William Charles Construction Group and the owners thereof (incorporated by reference to Exhibit 2.2 to the Company’s Current Report on Form 8-K (File No. 001-37796) filed November 2, 2018).
3.1	Second Amended and Restated Certificate of Incorporation of Infrastructure and Energy Alternatives, Inc. (incorporated by reference to Exhibit 3.1 of the Company’s Registration Statement on Form S-3/A (File No. 333-224337) filed with the Securities Exchange Commission on June 7, 2018).

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3.2	Amended and Restated Bylaws of Infrastructure and Energy Alternatives, Inc. (incorporated by reference to Exhibit 3.2 of the Company’s Current Report on Form 8-K (File No. 001-37796) filed with on March 29, 2018).
3.3	Certificate of Designations of Series A Preferred Stock of Infrastructure and Energy Alternatives, Inc. (incorporated by reference to Exhibit 3.3 to the Company’s Current Report on Form 8-K (File No. 001-37796) filed on March 29, 2018).
3.4	Amended and Restated Certificate of Designations of Series A Preferred Stock of Infrastructure and Energy Alternatives, Inc. (incorporated by reference to Exhibit 3.2 to the Company’s Current Report on Form 8-K (File No. 001-37796) filed May 22, 2019).
3.5	Certificate of Designations of Series B Preferred Stock of Infrastructure and Energy Alternatives, Inc. (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K (File No. 001-37796) filed May 22, 2019).
3.6	Amended and Restated Certificate of Designation of Series B-1 Preferred Stock of Infrastructure and Energy Alternatives, Inc. (incorporated by reference to Exhibit 3.1 of the Company’s Current Report on Form 8-K (File No. 001-37796) filed on August 30, 2019).
3.7	Certificate of Designation of Series B-2 Preferred Stock of Infrastructure and Energy Alternatives, Inc. (incorporated by reference to Exhibit 3.2 of the Company’s Current Report on Form 8-K (File No. 001-37796) filed on August 30, 2019).
10.1	Equity Commitment Agreement, dated August 13, 2019, by and among Infrastructure and Energy Alternatives, Inc., the Commitment Parties party thereto and Oaktree Power Opportunities Fund III Delaware, L.P. (incorporated by reference to Exhibit 10.1 of the Company's Quarterly Report on Form 10-Q (File No. 001-37796) filed on August 14, 2019).
10.2	Amendment to the Equity Commitment Agreement, dated August 30, 2019, by and among Infrastructure and Energy Alternatives, Inc., Ares Special Situations Fund IV, L.P., ASOF Holdings I, L.P., Infrastructure and Energy Alternatives, LLC, OT POF IEA Preferred B Aggregator, L.P., Oaktree Power Opportunities Fund III Delaware, L.P. (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K (File No. 001-37796) filed on August 30, 2019).
10.3	Warrant Certificate, dated August 30, 2019, by and among Infrastructure and Energy Alternatives, Inc. and Ares Special Situations Fund IV, L.P. (incorporated by reference to Exhibit 10.2 of the Company’s Current Report on Form 8-K (File No. 001-37796) filed on August 30, 2019).
10.4	Warrant Certificate, dated August 30, 2019, by and among Infrastructure and Energy Alternatives, Inc. and ASOF Holdings I, L.P. (incorporated by reference to Exhibit 10.3 of the Company’s Current Report on Form 8-K (File No. 001-37796) filed on August 30, 2019).
10.5	Third Amendment to Amended and Restated Registration Rights Agreement, dated as of August 30, 2019, by and among Infrastructure and Energy Alternatives, Inc., Infrastructure and Energy Alternatives, LLC, Ares Special Situations Fund IV, L.P. and ASOF Holdings I, L.P. (incorporated by reference to Exhibit 10.4 of the Company’s Current Report on Form 8-K (File No. 001-37796) filed on August 30, 2019).
10.6	Second Amended and Restated Investor Rights Agreement, dated as of August 30, 2019, by and among Infrastructure and Energy Alternatives, Inc., M III Sponsor I LLC, Infrastructure and Energy Alternatives, LLC and Oaktree Power Opportunities Fund III Delaware, L.P. (incorporated by reference to Exhibit 10.5 of the Company’s Current Report on Form 8-K (File No. 001-37796) filed on August 30, 2019).
10.7	Equity Commitment Agreement, dated October 29, 2019, by and among Infrastructure and Energy Alternatives, Inc., the Commitment Parties party thereto, Oaktree Power Opportunities Fund III Delaware, L.P., Infrastructure and Energy Alternatives, LLC, and OT POF IEA Preferred B Aggregator, L.P. (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K (File No. 001-37796) filed on October 30, 2019).
10.8	Preferred Stock Exchange Agreement, dated October 29, 2019, by and among the Infrastructure and Energy Alternatives, Inc., IEA, Ares Special Situations Fund IV, L.P. and ASOF Holdings I, L.P., Oaktree Power Opportunities Fund III Delaware, L.P., and OT POF IEA Preferred B Aggregator, L.P. (incorporated by reference to Exhibit 10.2 of the Company’s Current Report on Form 8-K (File No. 001-37796) filed on October 30, 2019).
10.9	Rights Offering Agreement, dated October 29, 2019, by and among the Infrastructure and Energy Alternatives, Inc., IEA, Ares Special Situations Fund IV, L.P. and ASOF Holdings I, L.P., Oaktree Power Opportunities Fund III Delaware, L.P., and OT POF IEA Preferred B Aggregator, L.P. (incorporated by reference to Exhibit 10.3 of the Company’s Current Report on Form 8-K (File No. 001-37796) filed on October 30, 2019).
10.10	Voting Agreement, dated as of October 29, 2019, by and among Infrastructure and Energy Alternatives, Inc., IEA LLC, OT POF IEA Preferred B Aggregator, L.P., M III Sponsor, Mohsin Y. Meghji, Mohsin Meghji 2016 Gift Trust and Charles Garner and M III Sponsor I LLC. (incorporated by reference to Exhibit 10.4 of the Company’s Current Report on Form 8-K (File No. 001-37796) filed on October 30, 2019).

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10.11	Indemnification letter agreement, dated as of October 29, 2019, by and among Infrastructure and Energy Alternatives, Inc., Oaktree Power Opportunities Fund III Delaware, L.P., Infrastructure and Energy Alternatives, LLC, and OT POF IEA Preferred B Aggregator, L.P. (incorporated by reference to Exhibit 10.5 of the Company’s Current Report on Form 8-K (File No. 001-37796) filed on October 30, 2019).
31.1*	Certification of the Principal Executive Officer required by Rule 13a-14(a) and Rule 15d-14(a) under the Securities Exchange Act of 1934, as amended, as adopted pursuant to Section 302 of the Sarbanes Oxley Act of 2002.
31.2*	Certification of the Principal Financial Officer required by Rule 13a-14(a) and Rule 15d-14(a) under the Securities Exchange Act of 1934, as amended, as adopted pursuant to Section 302 of the Sarbanes Oxley Act of 2002.
32.1**	Certification of the Principal Executive Officer required by 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes Oxley Act of 2002.
32.2**	Certification of the Principal Financial Officer required by 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes Oxley Act of 2002.
101.INS*	XBRL Instance Document
101.SCH*	XBRL Taxonomy Extension Schema Document
101.CAL*	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF*	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB*	XBRL Taxonomy Extension Label Linkbase Document
101.PRE*	XBRL Taxonomy Extension Presentation Linkbase Document

* Filed herewith.

** Furnished herewith.

† Indicates a management contract or compensatory plan or arrangement

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	INFRASTRUCTURE AND ENERGY ALTERNATIVES, INC.
Dated: November 12, 2019	By:	/s/ JP Roehm
	Name: JP Roehm
	Title:   Chief Executive Officer
Dated: November 12, 2019	By:	/s/ Andrew D. Layman
	Name: Andrew D. Layman
	Title:   Chief Financial Officer
Dated: November 12, 2019	By:	/s/ Bharat Shah
	Name: Bharat Shah
	Title: Chief Accounting Officer

EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO

Section 302 of the Sarbanes-Oxley Act of 2002

I, John Paul Roehm, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Infrastructure and Energy Alternatives, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Dated: November 12, 2019	By:	/s/ John Paul Roehm
	Name: John Paul Roehm
	Title:   Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO

Section 302 of the Sarbanes-Oxley Act of 2002

I, Andrew Layman, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Infrastructure and Energy Alternatives, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

	INFRASTRUCTURE AND ENERGY ALTERNATIVES, INC.
Dated: November 12, 2019	By:	/s/ Andrew D. Layman
	Name: Andrew D. Layman
	Title:   Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Infrastructure and Energy Alternatives, Inc. (the “Company”) on Form 10-Q for the quarter ended September 30, 2019, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned officer of the Company certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to such officer's knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: November 12, 2019	By:	/s/ John Paul Roehm
	Name: John Paul Roehm
	Title:   Chief Executive Officer

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Infrastructure and Energy Alternatives, Inc. (the “Company”) on Form 10-Q for the quarter ended September 30, 2019, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned officer of the Company certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to such officer's knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: November 12, 2019	By:	/s/ Andrew D. Layman
	Name: Andrew D. Layman
	Title:   Chief Financial Officer

XML

Business, Basis of Presentation and Significant Accounting Policies (Notes)

9 Months Ended

Sep. 30, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]

Business, Basis of Presentation and Significant Accounting Policies

Infrastructure and Energy Alternatives, Inc., 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 recent acquisitions have expanded its construction capabilities and geographic footprint in the areas of renewables, environmental remediation, industrial maintenance, specialty paving and heavy civil and rail infrastructure construction, creating a diverse national platform of specialty construction capabilities.

Principles of Consolidation

The accompanying condensed unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and with the instructions for Quarterly Reports on Form 10-Q and Rule 10-01 of Regulation S-X. Pursuant to these rules and regulations, certain information and footnote disclosures normally included in the annual audited consolidated financial statements prepared in accordance with GAAP have been condensed or omitted.

The condensed unaudited consolidated financial statements include the accounts of IEA and its wholly-owned direct and indirect domestic and foreign subsidiaries and in the opinion of management, these financial statements reflect all adjustments (consisting of normal recurring adjustments) that are necessary to present fairly the results of operations for the interim periods presented. The results of operations for the nine months ended September 30, 2019 are not necessarily indicative of the results that may be expected for the year ending December 31, 2019. These financial statements should be read in conjunction with the Company’s audited consolidated financial statements for the year ended December 31, 2018 and notes thereto included in the Company’s 2018 Annual Report on Form 10-K.

Reportable Segments

We segregate our business into two reportable segments: the Renewables (“Renewables”) segment and the Heavy Civil and Industrial (“Specialty Civil”) segment. See Note 13. Segments for a description of the reportable segments and their operations.

Basis of Accounting and Use of Estimates

The accompanying consolidated financial statements have been prepared in accordance with GAAP. The preparation of the condensed consolidated financial statements in conformity with GAAP requires the use of estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and the accompanying notes. Key estimates include: the recognition of project revenue and profit or loss (which the Company defines as project revenue less project costs of revenue), in particular, on construction contracts accounted for under the percentage-of completion method, for which the recorded amounts require estimates of costs to complete projects, ultimate project profit and the amount of probable contract price adjustments as inputs; allowances for doubtful accounts; accrued self-insurance reserves; 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” Reporting Requirements:

The Company qualifies as an “emerging growth company,” as defined in the Jumpstart Our Business Startups Act (the “JOBS Act”). For as long as a company is deemed to be an “emerging growth company,” it may take advantage of specified reduced reporting and other regulatory requirements that are generally unavailable to other public companies. Among other things, we are not required to provide an auditor attestation report on the assessment of the internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act of 2002. Section 107 of the JOBS Act also provides that an “emerging growth company” can delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We have elected to take advantage of this extended transition period. Our financial statements may therefore not be comparable to those of companies that comply with such new or revised accounting standards.

We would cease to be an “emerging growth company” upon the earliest of:

• the last day of the fiscal year following July 6, 2021, the five-year anniversary of the completion of our IPO;

• the last day of the fiscal year in which our total annual gross revenues exceed $1.07 billion;

• the date on which we have, during the previous three-year period, issued more than $1 billion in non-convertible debt

    securities; or

• the date on which we become a “large accelerated filer,” as defined in Rule 12b-2 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), which would occur if the market value of our common stock held by nonaffiliates exceeds $700 million as of the last day of our most recently completed second fiscal quarter.

We continue to monitor our status as an “emerging growth company” and are currently preparing for, and expect to be ready to comply with, the additional reporting and regulatory requirements that will be applicable to us when we cease to qualify as an “emerging growth company.”

Revenue Recognition

Revenue under construction contracts is accounted for under the percentage-of-completion method of accounting. Under the percentage-of-completion method, the Company estimates profit as the difference between total estimated revenue and total estimated cost of a contract and recognizes that profit over the contract term based on costs incurred. Contract costs include all direct materials, labor and subcontracted costs and those indirect costs related to contract performance, such as indirect labor, supplies, tools, repairs, depreciation and the operational costs of capital equipment. The Company also has unit-price contracts that were not significant as of September 30, 2019.

The estimation process for revenue recognized under the percentage-of-completion method is based on the professional knowledge and experience of the Company’s project managers, engineers and financial professionals. Management reviews estimates of contract revenue and costs on an ongoing basis. Changes in job performance, job conditions and management’s assessment of expected contract settlements are factors that influence estimates of total contract value and total costs to complete those contracts and, therefore, the Company’s profit recognition. Changes in these factors may result in revisions to revenue, costs and income, and their effects are recognized in the period in which the revisions are determined, which could materially affect the Company’s results of operations in the period in which such changes are recognized.

Revenue derived from projects billed on a fixed-price basis totaled 98.5% and 99.8% of consolidated revenue from operations for the three months ended September 30, 2019 and 2018, respectively, and totaled 94.1% and 97.4% for the nine months ended September 30, 2019 and 2018, 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 also accounted for under the percentage of completion method totaled 1.5% and 0.2% of consolidated revenue from operations for the three months ended September 30, 2019 and 2018, respectively, and totaled 5.9% and 2.6% for the nine months ended September 30, 2019 and 2018, respectively.

For an approved change order which can be reliably estimated as to price, the anticipated revenues and costs associated with the change order are added to the total contract value and total estimated costs of the project, respectively. When costs are incurred for a) an unapproved change order which is probable to be approved or b) an approved change order which cannot be reliably estimated as to price, the total anticipated costs of the change order are added to both the total contract value and total estimated costs for the project. Once a change order becomes approved and reliably estimable, any margin related to the change order is added to the total contract value of the project. The Company actively engages in substantive meetings with its customers to complete the final approval process and generally expects these processes to be completed within a year. The amounts ultimately realized upon final acceptance by its customers could be higher or lower than such estimated amounts.

Provisions for losses on uncompleted contracts are made in the period in which such losses become evident. The Company may incur costs subject to change orders, whether approved or unapproved by the customer, and/or claims related to certain contracts. Management determines the probability that such costs will be recovered based upon engineering studies and legal opinions, past practices with the customer and specific discussions, correspondence and/or preliminary negotiations with the customer.

Classification of Construction Contract-Related Assets and Liabilities

Contract costs include all direct subcontract, material, and labor costs, and those indirect costs related to contract

performance, such as indirect labor, supplies, tools, insurance, repairs, maintenance, communications, and use of Company-owned equipment. Contract revenues are earned and matched with related costs as incurred.

Costs and estimated earnings in excess of billings on uncompleted contracts are presented as a current asset in the accompanying condensed consolidated balance sheets, and billings in excess of costs and estimated earnings on uncompleted contracts are presented as a current liability in the accompanying condensed consolidated balance sheets. The Company’s contracts vary in duration, with the duration of some larger contracts exceeding one year. Consistent with industry practices, the Company includes the amounts realizable and payable under contracts, which may extend beyond one year, in current assets and current liabilities. These contract balances are generally settled within one year.

New Accounting Pronouncements

The effective dates shown in the following pronouncements are based on the Company's current status as an “emerging growth company.”

In May 2014, the Financial Accounting Standards Board ("FASB") issued guidance on the recognition of revenue from contracts with customers. The core principle of the guidance is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration which the company expects to receive in exchange for those goods or services. To achieve this core principle, the guidance provides a five-step analysis of transactions to determine when and how revenue is recognized. The guidance addresses several areas including transfer of control, contracts with multiple performance obligations, and costs to obtain and fulfill contracts. The guidance also requires additional disclosure about the nature, amount, timing, and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. The standard will be effective for our fiscal year 2019 annual financial statements and for interim periods beginning in fiscal year 2020.

The Company has substantially completed its assessment of the potential effects of these ASUs on its consolidated financial statements, business processes, systems and controls.  The Company’s assessment included a detailed review of representative contracts at each of the Company’s segments and a comparison of its historical accounting policies and practices to the new standard. Based on the Company’s review of various types of revenue arrangements, the Company expects to recognize revenue and earnings over time utilizing the cost-to-cost measure of progress for its fixed price contracts and other service agreements, consistent with current practice.  For these contracts, the cost-to-cost measure of progress best depicts the transfer of control of goods or services to the customer under the new standard. The Company has substantially completed its analysis of the information necessary to enable the preparation of the financial statements and related disclosures under the new standard. As part of this analysis, the Company evaluated its information technology capabilities and systems, and does not expect to incur significant information technology costs to modify systems currently in place. The Company will implement targeted changes to its internal reporting processes to facilitate gathering the data needed for reporting and disclosure under the new standard. The Company will also implement updates to its control processes and procedures, as necessary, based on changes resulting from the new standard. The Company does not expect any such updates to materially affect the Company’s internal controls over financial reporting.

The Company anticipates adopting the standard using the modified retrospective transition approach.  Under this approach, the new standard would apply to all new contracts initiated on or after January 1, 2019.  For existing contracts that have remaining obligations as of January 1, 2019, any difference between the recognition criteria in these ASUs and the Company’s current revenue recognition practices would be recognized using a cumulative effect adjustment to the opening balance of retained earnings.  Any potential effect of adoption of these ASUs has not yet been quantified; however, the Company anticipates the adoption will have an impact on both the amount and timing of revenue recognition related to unapproved change orders.  The Company is training its impacted employees in business segments for the implementation of the new standard, and continues developing the disclosures required by the new standard. The Company is also reviewing certain contracts entered into by its business segments subsequent to its initial assessment that are expected to have performance obligations remaining as of January 1, 2019 for any cumulative effect adjustments that may be required upon adoption.

In February 2016, the FASB issued ASU 2016-02,Leases (Topic 842). Under ASU 2016-02, lessees will be required to recognize the following for all leases (with the exception of short-term leases) at the commencement date: 1) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis, and 2) 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. ASU 2016-02 required entities to adopt the new leases standard using a modified retrospective method and initially apply the related guidance at the beginning of the earliest period presented in the financial statements.  During July 2018, the FASB issued ASU 2018-11, which allows for an additional and optional transition method under which an entity would record a cumulative-effect adjustment at the beginning of the period of adoption. See Note 10. Commitments and Contingencies for additional information about our leases. The Company will early adopt the standard and it will be effective for our fiscal year 2019 annual financial statements and for interim periods beginning in fiscal year 2020. The Company is in the process of implementing leasing software to assist in the integration of the future standard.

In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820), Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement, which eliminates certain disclosure requirements for recurring and non-recurring fair value measurements, such as the amount of and reason for transfers between Level 1 and Level 2 of the fair value hierarchy, and adds new disclosure requirements for Level 3 measurements. ASU 2018-13 is effective for all entities for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, with early adoption permitted for any eliminated or modified disclosures. Certain disclosures per ASU 2018-13 are required to be applied on a retrospective basis and others on a prospective basis. The Company is currently assessing the impact these changes will have on its disclosure requirements for fair value measurement.

Management has evaluated other recently issued accounting pronouncements and does not believe that they will have a significant impact on the financial statements and related disclosures.

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Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	34,965	34,965
Preferred stock, shares outstanding	34,965	34,965
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares, issued	20,460,533	22,155,271
Common stock, shares, outstanding	20,446,811	22,155,271
Treasury Stock, Shares	13,722

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Segments (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Gross Profit	$ 52,870,000	$ 27,008,000	$ 91,065,000	$ 40,722,000
Gross profit margin	12.50%	9.70%	9.70%	8.10%
Revenue	$ 422,022,000	$ 279,279,000	$ 940,793,000	$ 503,487,000
Segment revenue as a percentage of total revenue	100.00%	100.00%	100.00%	100.00%
Renewables Segment [Member]
Segment Reporting Information [Line Items]
Gross Profit	$ 27,469,000	$ 24,822,000	$ 45,806,000	$ 37,578,000
Gross profit margin	11.30%	9.50%	9.20%	7.80%
Revenue	$ 242,654,000	$ 262,477,000	$ 496,863,000	$ 480,362,000
Segment revenue as a percentage of total revenue	57.50%	94.00%	52.80%	95.40%
Specialty Civil Segment [Member]
Segment Reporting Information [Line Items]
Gross Profit	$ 25,401,000	$ 2,186,000	$ 45,259,000	$ 3,144,000
Gross profit margin	14.20%	13.00%	10.20%	13.60%
Revenue	$ 179,368,000	$ 16,802,000	$ 443,930,000	$ 23,125,000
Segment revenue as a percentage of total revenue	42.50%	6.00%	47.20%	4.60%

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Debt - Long Term Debt and Capital Lease Obligations (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Debt Disclosure [Abstract]
Remainder of 2019	$ 13,965
2020	55,988
2021	51,826
2022	47,276
2023	32,905
Thereafter	257,591
Contractual Obligation	$ 459,551

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Concentrations (Tables)

9 Months Ended

Sep. 30, 2019

Risks and Uncertainties [Abstract]

Schedule of revenue and accounts receivable concentrations, net of allowances

The Company had the following approximate revenue and accounts receivable concentrations, net of allowances, for the periods ended:

	Revenue %							Accounts Receivable %
	Three Months Ended			Nine Months Ended
	September 30,			September 30,				September 30, 2019	December 31, 2018
	2019	2018		2019		2018
Company A	*	24.1	%	*		22.6	%	*	20.0	%
Company B	*	16.7	%	*		12.1	%	*	*
Company C	*	*		11.7	%	*		*	19.0	%
Company D	*	11.7	%	*		*		*	*

* Amount was not above 10% threshold

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Acquisitions (Details) - USD ($) $ / shares in Units, $ in Millions	Nov. 02, 2018	Sep. 25, 2018
CCS [Member]
Business Acquisition [Line Items]
Purchase consideration for CCS		$ 106.6
William Charles [Member]
Business Acquisition [Line Items]
Purchase Consideration for William Charles	$ 77.7
Merger consideration paid	73.2
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned	$ 4.5
Number of shares issued as consideration (in shares)	477,621
Business Acquisition, Share Price	$ 9.45

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Accounts receivable, net of allowance - Accounts receivable, net of allowance (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	$ 244,516		$ 225,408
Less: allowance for doubtful accounts	(51)	$ (102)	(42)	$ (216)	$ (216)	$ (216)
Accounts receivable, net	244,465		225,366
Contract receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	168,413		161,408
Contract retainage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	$ 76,103		$ 64,000

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Commitments and contingencies

9 Months Ended

Sep. 30, 2019

Commitments and Contingencies Disclosure [Abstract]

Commitments and contingencies

Commitments and Contingencies

Capital Leases

The Company has obligations, exclusive of associated interest, under various capital leases for equipment totaling $73.9 million and $63.5 million at September 30, 2019 and December 31, 2018, respectively. Gross property under this capitalized lease agreement at September 30, 2019 and December 31, 2018, totaled $119.6 million and $76.9 million, less accumulated depreciation of $29.3 million and $10.1 million, respectively, for net balances of $90.3 million and $66.8 million, respectively. Depreciation of assets held under the capital leases is included in the cost of revenue in the condensed consolidated statements of operations.

Operating Leases

In the ordinary course of business, the Company enters into non-cancelable operating leases for certain of its facility, vehicle and equipment needs, including related party leases. See Note 14. Related Party Transactions. Rent and related expense for operating leases that have non-cancelable terms totaled approximately $4.3 million and $0.5 million for the three months ended September 30, 2019 and 2018, respectively and $9.5 million and $1.5 million for the nine months ended September 30, 2019 and 2018, respectively.

The Company has long-term power-by-the-hour equipment rental agreements,included in non-canceable operating lease expense above, with a construction equipment manufacturer that have a guaranteed minimum monthly hour requirement. The minimum guaranteed amount based on the Company's current operations is $3.2 million per year. Total expense under these agreements was $3.2 million for the nine months ended September 30, 2019.

Sale-leaseback Transaction

On March 13, 2019, the Company completed a sale-leaseback transaction related to certain assets that were acquired as part of our recent acquisitions of $25.0 million. The payments related to this transaction are over a four year term and have been included as part of the Contractual Maturities table, See Note 9. Debt.

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Property, plant and equipment, net

9 Months Ended

Sep. 30, 2019

Property, Plant and Equipment [Abstract]

Property, plant and equipment, net

Property, Plant and Equipment, Net

Property, plant and equipment, net consisted of the following (in thousands):

	September 30, 2019			December 31, 2018
Buildings and leasehold improvements	$	2,812		$	4,614
Land	17,600			19,394
Construction equipment	178,239			175,298
Office equipment, furniture and fixtures	3,449			2,994
Vehicles	5,985			4,991
	208,085			207,291
Accumulated depreciation	(56,301		)	(31,113		)
Property, plant and equipment, net	$	151,784		$	176,178

Depreciation expense of property, plant and equipment was $9,219 and $2,471 for the period ended September 30, 2019 and 2018, respectively, and was $26,125 and $6,388 for the nine months ended September 30, 2019 and 2018, respectively.

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Goodwill and Intangible Assets, net (Tables)

9 Months Ended

Sep. 30, 2019

Goodwill and Intangible Assets, Net [Abstract]

Components of and changes in carrying amount of goodwill [Table Text Block]

The following table provides the changes in the carrying amount of goodwill for 2019 and 2018:

(in thousands)	Goodwill
January 1, 2018 (Renewables Segment)	$	3,020
Acquisitions (Specialty Civil Segment)	37,237
December 31, 2018	$	40,257
Acquisition adjustments (Specialty Civil Segment)	(2,884		)
September 30, 2019	$	37,373

Schedule of Finite-Lived Intangible Assets [Table Text Block]

Intangible assets, net consisted of the following as of the dates indicated:

	September 30, 2019								December 31, 2018
($ in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Remaining Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Remaining Life
Customer relationships	$	26,500	$	(3,749	)	$	22,751	6 years	$	27,000	$	(814	)	$	26,186	7 years
Trade name	13,400		(2,635		)	10,765		4 years	13,400		(575		)	12,825		5 years
Backlog	13,900		(6,791		)	7,109		1 year	13,400		(1,537		)	11,863		2 years
	$	53,800	$	(13,175	)	$	40,625		$	53,800	$	(2,926	)	$	50,874

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

The following table provides the annual intangible amortization expense currently expected to be recognized for the years 2019 through 2023:

(in thousands)	Remainder of 2019		2020		2021		2022		2023
Amortization expense	$	3,354	$	11,837	$	6,466	$	6,466	$	5,841

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Earnings per share (Tables)

9 Months Ended

Sep. 30, 2019

Earnings Per Share [Abstract]

Schedule of basic and diluted EPS

The calculations of basic and diluted EPS, are as follows ($ in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2019		2018		2019		2018
Numerator:
Net income (loss)	12,609		5,736		(4,072	)	(6,741	)
Less: Convertible Preferred Stock dividends	(759	)	(524	)	(2,202	)	(1,072	)
Less: Contingent consideration fair value adjustment (see Note 8)	(4,247	)	—		(23,082	)	—
Net income (loss) available to common stockholders	7,603		5,212		(29,356	)	(7,813	)
Denominator:
Weighted average common shares outstanding - basic(1)	20,446,811		21,577,650		20,425,801		21,577,650
Series B Preferred - Warrants	2,845,840		—		—		—
Convertible Series A Preferred Stock	11,486,534		3,522,438		—		—
Restricted stock units	640,247		—		—		—
Weighted average shares for diluted computation	35,419,432		25,100,088		20,425,801		21,577,650
Anti-dilutive: (2)(3)
Convertible Series A Preferred	—		—		8,968,856		2,832,765
Series B Preferred - Warrants at closing	—		—		1,325,779		—
RSUs	—		—		542,421		—
Basic EPS	0.37		0.24		(1.44	)	(0.36	)
Diluted EPS	0.24		0.23		(1.44	)	(0.36	)

(1) The contingent earn-out shares were not included at September 30, 2019 and were removed from September 30, 2018, respectively. See Note 8. Fair Value of Financial Instruments for discussion regarding the Company's contingently issuable earn-out shares.

(2) Warrants to purchase 8,480,000 shares of common stock at $11.50 per share were outstanding at September 30, 2019 and 2018 but were not potentially dilutive as the warrants’ exercise price was greater than the average market price of the common stock during the period. 646,405 of vested and unvested Options and 817,817 of unvested RSUs were also not potentially dilutive as of September 30, 2019 as the respective exercise price or average stock price required for vesting of such awards was greater than the average market price of the common stock during the period.

(3) The 1.8 million unvested earnout shares were not included at September 30, 2019 due to the exercise price being greater than the average market price of the common stock during the period.

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Related party transactions

9 Months Ended

Sep. 30, 2019

Related Party Transactions [Abstract]

Related party transactions

Related Party Transactions

Clinton Lease Agreement

On October 20, 2017, the Company enacted a plan to restructure the ownership of a building and land which resulted in the transfer of ownership of such building and land from its consolidated subsidiary, White Construction, LLC, to Clinton RE Holdings, LLC (Cayman) (“Cayman Holdings”), a directly owned subsidiary of the Infrastructure and Energy Alternatives, LLC. The lease has been classified as an operating lease with monthly payments through 2038. The Company's rent expense related to the lease during the three months ended September 30, 2019 and 2018, was $178 and $153, respectively, and for the nine months ended September 30, 2019 and 2018, was $534 and $459, respectively.

On October 30, 2019, Cayman Holdings sold the building to a third party that assumed the future payments and terms of the existing lease. The Company will continue to have rent expense related to the lease but it will no longer be with a related party.

Related Party Shareholders

Type of Equity	Holder	Ownership Percentage
Series A Preferred	Infrastructure and Energy Alternatives, LLC	100	%
Series B-1 Preferred Stock, Series A Conversion Warrants, Additional 6% Warrants, Warrants at closing	Ares	60	%
	Oaktree Power Opportunities Fund III Delaware, L.P.	40	%
Contingent Consideration	Infrastructure and Energy Alternatives, LLC	100	%
Series B-2 Preferred Stock	Ares	100	%

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Contracts in progress - Costs in excess of billings and billings in excess of costs (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Contractors [Abstract]
Costs on contracts in progress	$ 1,189,496	$ 935,820
Estimated earnings on contracts in progress	111,451	76,883
Costs on contracts and estimated earnings on contracts in progress	1,300,947	1,012,703
Less: billings on contracts in progress	(1,263,221)	(1,027,816)
Costs and estimated earnings in excess of billings on uncompleted contracts	109,540	47,121
Billings in excess of costs and earnings on uncompleted contracts	(71,814)	(62,234)
Net underbillings (overbillings)	37,726	(15,113)
Provision for Loss on Contracts	100	1,400
Gross amount of unresolved change orders and claims	$ 69,900	$ 45,000

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Fair value of financial instruments - Reconciliation of Level 3 Inputs (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($)
Business Combination, Contingent Consideration [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance, December 31, 2018	$ 23,082
Preferred Series B-1 Stock - Additional Warrants	0
Fair value adjustment	(23,082)
Ending Balance, September 30, 2019	0
Series B Preferred - Series A Conversion Warrants [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance, December 31, 2018	0
Preferred Series B-1 Stock - Additional Warrants	4,200
Fair value adjustment	0
Ending Balance, September 30, 2019	4,200
Series B Preferred - Additional 6% Warrants [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance, December 31, 2018	0
Preferred Series B-1 Stock - Additional Warrants	400
Fair value adjustment	0
Ending Balance, September 30, 2019	$ 400

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Debt - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Letters of credit contingently liable for	$ 20,981	$ 3,006
Surety bonds	$ 2,017,584	$ 1,681,983
Third A&R Credit Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, Quarterly Amortization, Percentage Of Aggregate Principal Amount	2.50%
Debt Instrument, Additional Annual Payment Amount, Percentage Of Excess Cash Flows	75.00%
Debt Instrument, Covenant Terms, Additional Annual Payment Amount, Excess Cash Flow Threshold	$ 2,500
Percent of Initial Debt paid quarterly	2.50%
Line of credit
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	10.42%	8.82%
Revolving Credit Facility [Member] | Third A&R Credit Agreement [Member] | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate of debt	4.25%
Revolving Credit Facility [Member] | Third A&R Credit Agreement [Member] | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate of debt	3.25%
Consenting Lender [Member] | Third A&R Credit Agreement [Member]
Debt Instrument [Line Items]
First Net Lien Ratio for Lower Int Rate	2.67
Consenting Lender [Member] | Third A&R Credit Agreement [Member] | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate of debt	8.25%
Consenting Lender [Member] | Third A&R Credit Agreement [Member] | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate of debt	7.25%
Consenting Lender Rate After 2.67 Lien Net Leverage [Member] | Third A&R Credit Agreement [Member] | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate of debt	6.75%
Consenting Lender Rate After 2.67 Lien Net Leverage [Member] | Third A&R Credit Agreement [Member] | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate of debt	5.75%
Non-consenting Lender [Member] | Third A&R Credit Agreement [Member] | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate of debt	6.25%
Non-consenting Lender [Member] | Third A&R Credit Agreement [Member] | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate of debt	5.25%
Debt Covenant Period, Period Four [Member] [Member] | Third A&R Credit Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, Covenant Terms, Maximum First Lien Net Leverage Ratio	2.25
Debt Covenant Period, Period Three [Member] [Member] | Third A&R Credit Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, Covenant Terms, Maximum First Lien Net Leverage Ratio	2.75
Debt Covenant Period, Period Two [Member] | Third A&R Credit Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, Covenant Terms, Maximum First Lien Net Leverage Ratio	3.50
Debt Covenant Period, Period One [Member] | Third A&R Credit Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, Covenant Terms, Maximum First Lien Net Leverage Ratio	4.75

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Accounts receivable, net of allowance (Tables)

9 Months Ended

Sep. 30, 2019

Receivables [Abstract]

Schedule of accounts receivable and allowance for doubtful accounts

The following table provides details of accounts receivable, net of allowance as of the dates indicated (in thousands):

	September 30, 2019			December 31, 2018
Contract receivables	$	168,413		$	161,408
Contract retainage	76,103			64,000
Accounts receivable, gross	244,516			225,408
Less: allowance for doubtful accounts	(51		)	(42		)
Accounts receivable, net	$	244,465		$	225,366

Included in costs in excess of billings as of September 30, 2019 are unapproved change orders of approximately $21.0 million for which the Company is pursuing settlement through dispute resolution.    

Activity in the allowance for doubtful accounts for the periods indicated is as follows (in thousands):

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2019			2018		2019			2018
Allowance for doubtful accounts at beginning of period	$	102		$	216	$	42		$	216
Plus: provision for allowances	30			—		90			—
Less: write-offs, net of recoveries	(81		)	—		(81		)	—
Allowance for doubtful accounts at period end	$	51		$	216	$	51		$	216

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Subsequent Event (Notes)

9 Months Ended

Sep. 30, 2019

Subsequent Event [Abstract]

Subsequent Events [Text Block]

Subsequent Event

Third Equity Commitment Agreement

On October 29, 2019, the Company entered into the Third Equity Commitment Agreement (the “Third Equity Commitment Agreement”) among the Company, funds managed by Ares Management Corporation (“Ares”) and funds managed by Oaktree Capital Management (“Oaktree”). Pursuant to the Third Equity Commitment Agreement, the Company agreed to issue and sell 80,000 shares of newly designated Series B-3 Preferred Stock (the “Series B-3 Preferred Stock”) and 3,568,750 Warrants for an aggregate purchase price of $80.0 million (the “Initial Closing”). Consummation of the Initial Closing is subject to a number of conditions; however, funding is expected to occur within 12 business days from October 29th.

After the Initial Closing, Ares and Oaktree, pursuant to the Third Equity Commitment Agreement are each required, subject to certain conditions, to purchase up to an additional 15,000 shares (collectively 30,000 shares) of Series B-3 Preferred Stock and 515,625 Warrants (collectively 1,031,250 Warrants), resulting in additional proceeds to the Company in an amount of up to $30.0 million, if, by certain agreed upon dates, the Company has not repaid at least an additional $30.0 million under its term loan using excess cash and proceeds from the Rights Offering.

Rights Offering Agreement

On October 29, 2019, the Company entered into the Rights Offering Agreement (the “Rights Agreement”). Pursuant to the Rights Agreement, assuming all applicable conditions are satisfied, the Company has agreed to conduct a rights offering and to distribute a transferrable right, but not the obligation, to purchase Series B-3 Preferred Stock and warrants to purchase common stock to the holders of the Company’s outstanding common stock other than parties to the Third Equity Commitment Agreement and each of their director designees, the officers of the Company, and any related party of the foregoing (the “Rights Offering”). The Rights Offering will be subject to a maximum participation of 15,000 shares of Series B-3 Preferred Stock being issued, plus warrants at the rate of 5.5 per $160 of Series B-3 Preferred Stock purchased, an individual investment minimum of $50,000 and an individual investment maximum of the greater of the holder's pro rata share of the common stock eligible to participate and $2.25 million.

Preferred Stock Exchange Agreement

On October 29, 2019, the Company entered into the Preferred Stock Exchange Agreement (the “Exchange Agreement”). Pursuant to the Exchange Agreement, the holder of our Series A Preferred Stock has agreed to exchange 50% of its total Series A Preferred Stock outstanding into shares of Series B-3 Preferred Stock and Warrants at the Initial Closing. The number of shares of Series B-3 Preferred Stock to be issued in the exchange will be calculated by dividing the stated value (including unpaid accumulated and compounded dividends) of each share of Series A Preferred Stock to be exchanged by a price per share of Series B-3 Preferred Stock of $1,000. The number of warrants to be issued will be at a rate of 5.5 warrants per $160 of stated value of the Series A Preferred Stock exchanged.

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Fair value of financial instruments (Tables)

9 Months Ended

Sep. 30, 2019

Fair Value Disclosures [Abstract]

Schedule of fair value of liabilities measured on recurring basis

The following table sets forth information regarding the Company's assets measured at fair value on a recurring basis (in thousands):    

		Fair Value Measurements at Reporting Date
	Amount recorded on balance sheet	Quoted Prices in Active Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Liabilities as of December 31, 2018
Contingent consideration	23,082	—	—	23,082

		Fair Value Measurements at Reporting Date
	Amount recorded on balance sheet	Quoted Prices in Active Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Liabilities as of September 30, 2019
Contingent consideration	—	—	—	—
Series B-1 Preferred Stock - Series A Conversion Warrants	4,200	—	—	4,200
Series B-1 Preferred Stock - Additional 6% Warrants	400	—	—	400

Schedule of reconciliation of fair value unobservable liabilities measured on recurring basis

The following is a reconciliation of the beginning and ending balances for the periods indicated of recurring fair value measurements using Level 3 inputs (in thousands):

	Contingent Consideration		Series B Preferred - Series A Conversion Warrants		Series B Preferred - Additional 6% Warrants
Beginning Balance, December 31, 2018	23,082		$	—	$	—
Preferred Series B-1 Stock - Additional Warrants	—		4,200		400
Fair value adjustment	(23,082	)	—		—
Ending Balance, September 30, 2019	—		4,200		400

Schedule of liabilities measured at fair value on a non-recurring basis

The following table sets forth information regarding the Company's assets measured at fair value on a non-recurring basis (in thousands):    

		Fair Value Measurements
	Amount recorded on balance sheet	Quoted Prices in Active Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Liabilities:
Series B-1 and Series B-2 Preferred Stock	81,300	—	—	81,300
Equity:
Series B-1 Preferred Stock - Warrants at closing	14,100	—	—	14,100

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Debt - Long-Term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Total principal due for long-term debt	$ 281,508	$ 351,841
Debt Issuance Costs, Net	(23,783)	(23,534)
Long-term Debt, Current Maturities	(31,119)	(32,580)
Long-term debt, less current portion	226,606	295,727
Debt - Series B Preferred Stock	76,766	0
Term Loan [Member]
Debt Instrument [Line Items]
Total principal due for long-term debt	277,688	300,000
Line of credit
Debt Instrument [Line Items]
Total principal due for long-term debt	0	46,500
Series B Preferred Stock Liability [Member]
Debt Instrument [Line Items]
Total principal due for long-term debt	104,135	0
Debt Issuance Costs, Net	(27,369)	0
Commercial equipment notes | Term Loan - Long Term [Member]
Debt Instrument [Line Items]
Total principal due for long-term debt	3,820	$ 5,341
Series B Preferred Stock [Member]
Debt Instrument [Line Items]
Dividends Payable	$ 4,100

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Accounts receivable, net of allowance - Activity in the allowance for doubtful accounts (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Allowance for Doubtful Accounts Receivable [Roll Forward]
Allowance for doubtful accounts at beginning of period	$ 102	$ 216	$ 42	$ 216
Plus: provision for allowances	(30)	0	(90)	0
Provision for Doubtful Accounts	81	0	81	0
Allowance for doubtful accounts at period end	51	$ 216	51	$ 216
One Customer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contracts Receivable, Claims and Uncertain Amounts	$ 21,000		$ 21,000

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Fair value of financial instruments - Fair Value Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	$ 0	$ 23,082
Fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration		23,082
Fair value on a recurring basis | Business Combination, Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	0
Fair value on a recurring basis | Series B Preferred - Series A Conversion Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Series B Preferred Stock - Series A Conversion Warrants	4,200
Fair value on a recurring basis | Series B Preferred - Additional 6% Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Series B Preferred Stock - Additional 6% Warrants	400
Fair value on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration		0
Fair value on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Business Combination, Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	0
Fair value on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Series B Preferred - Series A Conversion Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	0
Fair value on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Series B Preferred - Additional 6% Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	0
Fair value on a recurring basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration		0
Fair value on a recurring basis | Significant Other Observable Inputs (Level 2) | Business Combination, Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	0
Fair value on a recurring basis | Significant Other Observable Inputs (Level 2) | Series B Preferred - Series A Conversion Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	0
Fair value on a recurring basis | Significant Other Observable Inputs (Level 2) | Series B Preferred - Additional 6% Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	0
Fair value on a recurring basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration		$ 23,082
Fair value on a recurring basis | Significant Unobservable Inputs (Level 3) | Business Combination, Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	0
Fair value on a recurring basis | Significant Unobservable Inputs (Level 3) | Series B Preferred - Series A Conversion Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	4,200
Fair value on a recurring basis | Significant Unobservable Inputs (Level 3) | Series B Preferred - Additional 6% Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	$ 400

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net loss	$ (4,072)	$ (6,741)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	36,373	6,591
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Asset	(23,082)	0
Amortization of Other Deferred Charges	3,765	357
Share-based compensation expense	2,812	500
(Gain) loss on sale of equipment	743	28
Deferred compensation	1,494	313
Accrued dividends on Series B Preferred Stock	4,135	0
Deferred income taxes	(3,073)	(577)
Change in operating assets and liabilities:
Accounts receivable	(19,108)	(72,895)
Costs and estimated earnings in excess of billings on uncompleted contracts	(62,419)	(46,030)
Prepaid expenses and other assets	(5,938)	(1,489)
Accounts payable and accrued liabilities	3,317	131,682
Billings in excess of costs and estimated earnings on uncompleted contracts	9,580	19,896
Net cash provided by (used in) operating activities	(55,473)	31,635
Cash flow from investing activities:
Company-owned life insurance	(81)	(156)
Purchases of property, plant and equipment	(5,599)	(2,445)
Proceeds from sale of property, plant and equipment	7,266	40
Business Combination, Consideration Transferred	0	(106,579)
Net cash provided by (used in) investing activities	1,586	(109,140)
Cash flows from financing activities:
Proceeds from long-term debt	50,400	381,272
Repayments of Long-term Lines of Credit	(121,215)	(139,501)
Repayments of Lines of Credit	0	38,447
Early Repayment of Senior Debt	0	(51,762)
Debt financing fees	(14,738)	(12,675)
Payments on capital lease obligations	(15,953)	(4,284)
Sale Leaseback Transaction, Net Proceeds, Financing Activities	24,343	0
Payments of Dividends	0	548
Proceeds from Convertible Debt	100,000	0
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options	159	0
Merger recapitalization transaction	2,754	(25,816)
Net cash provided by (used in) financing activities	25,750	108,239
Net change in cash and cash equivalents	(28,137)	30,734
Cash and cash equivalents, beginning of the period	71,311	4,877
Cash and cash equivalents, end of the period	43,174	35,611
Supplemental disclosure of cash and non-cash transactions:
Interest Paid, Excluding Capitalized Interest, Operating Activities	28,240	3,622
Cash paid for income taxes	250	649
Fair Value Of Assets Liabilities Acquired Through Capital Lease Obligations	1,992	12,133
Merger-related contingent consideration	0	69,373
Issuance of common shares	0	90,282
Issuance of preferred shares	0	34,965
Dividends, Preferred Stock	$ 2,202	$ 524

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Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 43,174	$ 71,311
Accounts receivable, net	244,465	225,366
Costs and estimated earnings in excess of billings on uncompleted contracts	109,540	47,121
Prepaid expenses and other current assets	18,533	12,864
Total current assets	415,712	356,662
Property, plant and equipment, net	151,784	176,178
Goodwill	37,373	40,257
Intangible Assets, Net (Excluding Goodwill)	40,626	50,874
Company-owned life insurance	3,935	3,854
Other assets	550	188
Deferred income taxes	15,847	11,215
Total assets	665,827	639,228
Current liabilities:
Accounts payable	126,484	158,075
Accrued Liabilities, Current	131,170	94,059
Billings in excess of costs and estimated earnings on uncompleted contracts	71,814	62,234
Current portion of capital lease obligations	24,640	17,615
Current portion of long-term debt	31,119	32,580
Total current liabilities	385,227	364,563
Capital lease obligations, net of current maturities	49,268	45,912
Long-term Debt	226,606	295,727
Debt - Series B Preferred Stock	76,766	0
Series B Preferred Stock - warrant obligations	4,223	0
Deferred compensation	8,077	6,157
Contingent consideration	0	23,082
Total liabilities	750,167	735,441
Commitments and contingencies:
Series A Preferred Stock, par value, $0.0001 per share; 1,000,000 shares authorized; 34,965 shares and 34,965 shares issued and outstanding at September 30, 2019 and December 31, 2018, respectively	34,965	34,965
Stockholders' equity (deficit):
Common stock, par value, $0.0001 per share; 100,000,000 shares authorized; 20,460,533 and 22,155,271 shares issued and 20,446,811 and 22,155,271 outstanding at September 30, 2019 and December 31, 2018, respectively	2	2
Treasury Stock, 13,722 shares at cost	(76)	0
Additional paid in capital	18,018	4,751
Retained earnings (deficit)	(137,249)	(135,931)
Total stockholders' equity (deficit)	(119,305)	(131,178)
Total liabilities and stockholders' equity (deficit)	$ 665,827	$ 639,228

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Related party transactions (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Infrastructure And Energy Alternatives, LLC [Member]
Related Party Transaction [Line Items]
Series A Preferred Ownership Percentage	100.00%		100.00%
Contingent Consideration Ownership Percentage	100.00%		100.00%
ARES [Member]
Related Party Transaction [Line Items]
Series B Preferred Equity Agreement - All Equity Ares	60.00%		60.00%
Series B-2 Preferred Equity Agreement - Ares	100.00%		100.00%
Oaktree
Related Party Transaction [Line Items]
Series B Preferred Equity Agreement - All Equity Oaktree	40.00%		40.00%
Oaktree | Clinton Lease Agreement
Related Party Transaction [Line Items]
Expenses from transactions with related parties	$ 178	$ 153	$ 534	$ 459

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Commitments and contingencies - Lease Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Capital lease obligations	$ 73,900		$ 73,900		$ 63,500
Capital leased assets, gross	119,600		119,600		76,900
Capital leased assets, accumulated depreciation	(29,300)		(29,300)		(10,100)
Capital leased assets, net	90,300		90,300		$ 66,800
Operating leases, rent expense	4,278	$ 496	9,519	$ 1,500
Other Commitments, Future Minimum Payments, Remainder of Fiscal Year	$ 3,200		3,200
Cost, Maintenance			3,200
Sale Leaseback Transaction, Gross Proceeds, Financing Activities			$ 25,000

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Earnings per share - Narrative (Details) $ / shares in Units, $ in Thousands				3 Months Ended		9 Months Ended
	Aug. 30, 2019	May 20, 2019 USD ($) $ / shares	Mar. 26, 2018 $ / shares shares	Sep. 30, 2019 USD ($) $ / shares shares	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) $ / shares shares	Sep. 30, 2018 USD ($)	Dec. 31, 2018 USD ($) $ / shares shares
Class of Stock [Line Items]
stock price reduction on contingent consideration				80.00%		80.00%
Preferred stock, shares issued (in shares) | shares				34,965		34,965		34,965
Preferred stock, par value (in dollars per share) | $ / shares				$ 0.0001		$ 0.0001		$ 0.0001
Total consideration for shares issued at the closing of the Merger				$ 34,965		$ 34,965		$ 34,965
SeriesB Preferred Shares to be Issued in Equity Agreement | shares				100,000		100,000
Preferred Stock Dividends, Income Statement Impact				$ 759	$ 524	$ 2,202	$ 1,072
Share-based compensation expense				1,100	$ 500	2,812	$ 500
Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares issued (in shares) | shares			34,965
Preferred stock, par value (in dollars per share) | $ / shares			$ 1,000
Total consideration for shares issued at the closing of the Merger				$ 37,700		37,700
Preferred stock, dividend rate before deleveraging			6.00%
18 month anniversary date			18 months
Preferred stock, dividend rate thereafter			10.00%
Default Rate for Uncured Dividends			2.00%
Preferred Stock Paid In Kind Dividend Rate		8.00%
Series A Preferred PIK Dividend Rate 18 mos		12.00%
Preferred Stock, Dividends, Declared						$ 2,727
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, par value (in dollars per share) | $ / shares		$ 1,000		$ 1,000		$ 1,000
Preferred stock, dividend rate before deleveraging		15.00%
Preferred Stock Paid In Kind Dividend Rate		18.00%
Series B Cash Dividend Rate after Deleveraging		13.50%
Series B PIK Dividend Rate after Deleveraging		15.00%
Deleveraging Dollar Amount Used to Pay Debt		$ 50,000
Ratio Net Leverage Ratio for Deleveraging Event		1.50		1.50		1.50
Dividends Payable				$ 4,100		$ 4,100
Series B-2 Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, dividend rate before deleveraging	15.00%
Series B Cash Dividend Rate after Deleveraging	13.50%
Ratio Net Leverage Ratio for Deleveraging Event	1.50
Dividend Rate after 1.5:1.0 leverage	12.00%

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Debt (Tables)

9 Months Ended

Sep. 30, 2019

Debt Disclosure [Abstract]

Schedule of debt

Debt consists of the following obligations as of:

	September 30, 2019		December 31, 2018
Term loan	277,688		300,000
Line of credit	—		46,500
Commercial equipment notes	3,820		5,341
Total principal due for long-term debt	281,508		351,841
Unamortized debt discount and issuance costs	(23,783	)	(23,534	)
Less: Current portion of long-term debt	(31,119	)	(32,580	)
Long-term debt, less current portion	226,606		295,727
Debt - Series B Preferred Stock (1)	104,135		—
Unamortized debt discount and issuance costs	(27,369	)	—
Long-term Series B Preferred Stock	76,766		—

Contractual maturities of debt and capital lease obligations

Contractual Maturities

Contractual maturities of the Company's debt and capital lease (see Note 10. Commitments and Contingencies) obligations as of September 30, 2019 (in thousands):

Remainder of 2019	$	13,965
2020	55,988
2021	51,826
2022	47,276
2023	32,905
Thereafter	257,591
Total contractual obligations	$	459,551

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Business, Basis of Presentation and Significant Accounting Policies (Details) - Product Concentration Risk [Member] - 2019	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Fixed-price Contract [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	98.50%	99.80%	94.10%	97.40%
Time-and-materials Contract [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	1.50%	0.20%	5.90%	2.60%

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Concentrations

9 Months Ended

Sep. 30, 2019

Risks and Uncertainties [Abstract]

Concentrations

Concentrations

The Company had the following approximate revenue and accounts receivable concentrations, net of allowances, for the periods ended:

	Revenue %							Accounts Receivable %
	Three Months Ended			Nine Months Ended
	September 30,			September 30,				September 30, 2019	December 31, 2018
	2019	2018		2019		2018
Company A	*	24.1	%	*		22.6	%	*	20.0	%
Company B	*	16.7	%	*		12.1	%	*	*
Company C	*	*		11.7	%	*		*	19.0	%
Company D	*	11.7	%	*		*		*	*

* Amount was not above 10% threshold

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Goodwill and Intangible Assets, net (Notes)

9 Months Ended

Sep. 30, 2019

Goodwill and Intangible Assets, Net [Abstract]

Goodwill and Intangible Assets Disclosure [Text Block]

Goodwill and Intangible Assets, Net

The following table provides the changes in the carrying amount of goodwill for 2019 and 2018:

(in thousands)	Goodwill
January 1, 2018 (Renewables Segment)	$	3,020
Acquisitions (Specialty Civil Segment)	37,237
December 31, 2018	$	40,257
Acquisition adjustments (Specialty Civil Segment)	(2,884		)
September 30, 2019	$	37,373

Intangible assets, net consisted of the following as of the dates indicated:

	September 30, 2019								December 31, 2018
($ in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Remaining Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Remaining Life
Customer relationships	$	26,500	$	(3,749	)	$	22,751	6 years	$	27,000	$	(814	)	$	26,186	7 years
Trade name	13,400		(2,635		)	10,765		4 years	13,400		(575		)	12,825		5 years
Backlog	13,900		(6,791		)	7,109		1 year	13,400		(1,537		)	11,863		2 years
	$	53,800	$	(13,175	)	$	40,625		$	53,800	$	(2,926	)	$	50,874

Amortization expense associated with intangible assets for the three months ended September 30, 2019 and 2018, totaled $3.4 million and $0.1 million, respectively, and $10.3 million and $0.2 million for the nine months ended September 30, 2019 and 2018, respectively.

The following table provides the annual intangible amortization expense currently expected to be recognized for the years 2019 through 2023:

(in thousands)	Remainder of 2019		2020		2021		2022		2023
Amortization expense	$	3,354	$	11,837	$	6,466	$	6,466	$	5,841

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Property, plant and equipment, net (Tables)

9 Months Ended

Sep. 30, 2019

Property, Plant and Equipment [Abstract]

Schedule of property plant and equipment

Property, plant and equipment, net consisted of the following (in thousands):

	September 30, 2019			December 31, 2018
Buildings and leasehold improvements	$	2,812		$	4,614
Land	17,600			19,394
Construction equipment	178,239			175,298
Office equipment, furniture and fixtures	3,449			2,994
Vehicles	5,985			4,991
	208,085			207,291
Accumulated depreciation	(56,301		)	(31,113		)
Property, plant and equipment, net	$	151,784		$	176,178

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Acquisitions Business Combination, Assets Acquired and Liabilities Assumed (Tables)

9 Months Ended

Sep. 30, 2019

Business Acquisition [Line Items]

Schedule of Business Acquisitions, by Acquisition [Table Text Block]

The following table summarizes the amounts recognized for assets acquired and liabilities assumed as of the acquisition dates at fair value. The values for CCS were finalized as of June 30, 2019 and finalized for William Charles as of September 30, 2019.

Identifiable assets acquired and liabilities assumed (in thousands)	CCS			William Charles
Cash	$	6,413		$	6,641
Accounts Receivable	58,041			69,740
Costs and estimated earnings in excess of billings on uncompleted contracts	9,512			16,095
Other current assets	1,813			7,999
Property, plant and equipment	59,952			47,899
Intangible assets:
Customer relationships	19,500			7,000
Backlog	8,400			5,500
Tradename	8,900			4,500
Deferred income taxes	(2,361		)	—
Other non-current assets	134			75
Accounts payable and accrued liabilities	(25,219		)	(60,962		)
Billings in excess of costs and estimated earnings on uncompleted contracts	(14,194		)	(14,810		)
Debt, less current portion	(52,257		)	(15,672		)
Capital lease obligations	(1,124		)	—
Other liabilities	(704		)	(907		)
Total identifiable assets	76,806			73,098
Goodwill	29,773			4,581
Total purchase consideration	$	106,579		$	77,679

* - There were no measurement period adjustments for the quarter ended September 30, 2019.

Business Acquisition, Pro Forma Information [Table Text Block]

The following table provides the supplemental unaudited actual and pro forma total revenue and net income of the combined entity had the acquisition date of CCS and William Charles been the first day of our fiscal year 2018:

	Three months ended September 30,		Nine months ended September 30,
(in thousands)	Actual 2019	Pro forma 2018	Actual 2019		Pro forma 2018
Revenue	422,022	446,557	940,793		948,543
Net income (loss)	12,609	6,016	(4,072	)	(15,448	)
Net income (loss) per common share:
Basic earnings per share	0.37	0.25	(1.44	)	(0.77	)
Diluted earnings per share	0.24	0.24	(1.44	)	(0.77	)

The amounts in the supplemental unaudited pro forma 2018 results apply the Company's accounting policies and reflect certain adjustments to, among other things, (i) exclude the impact of transaction costs incurred in connection with the acquisitions, (ii) include additional depreciation and amortization that would have been charged assuming the same fair value adjustments to property, plant and equipment and acquired intangibles had been applied on January 1, 2018, and (iii) include additional interest expense that would have been incurred assuming the incremental borrowings the Company incurred to finance the acquisitions had been outstanding on January 1, 2018. Accordingly, these supplemental unaudited pro forma results have been prepared for comparative purposes only and are not intended to be indicative of the results of operations that would have occurred had the acquisitions actually occurred in the prior year period or indicative of the results of operations for any future period. These results do not include any potential operating efficiencies and cost savings.

The following table summarizes the results of operations included in the Company's condensed consolidated statement of operations for CCS and William Charles from their respective dates of acquisition.

(in thousands)	Three months ended September 30, 2019		Nine months ended September 30, 2019
	CCS	William Charles	CCS	William Charles
Revenue	81,248	84,033	211,117	198,879
Net income (loss)	2,707	7,308	616	7,359
	Three months ended September 30, 2018		Nine months ended September 30, 2018
	CCS	William Charles	CCS	William Charles
Revenue	5,600	—	5,600	—
Net income (loss)	—	—	—	—

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Property, plant and equipment, net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 208,085		$ 208,085		$ 207,291
Accumulated depreciation	(56,301)		(56,301)		(31,113)
Property, plant and equipment, net	151,784		151,784		176,178
Depreciation expense	9,219	$ 2,471	26,125	$ 6,388
Buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,812		2,812		4,614
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	17,600		17,600		19,394
Construction equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	178,239		178,239		175,298
Office equipment, furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	3,449		3,449		2,994
Vehicles
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 5,985		$ 5,985		$ 4,991

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Fair value of financial instruments - Narrative (Details) - USD ($)		9 Months Ended
	May 20, 2019	Sep. 30, 2019	Aug. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Mar. 26, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Initial Contingent Shares						9,000,000
stock price reduction on contingent consideration		80.00%
Share price (in dollars per share)				$ 2.04	$ 8.61
Preferred stock, par value (in dollars per share)		$ 0.0001			$ 0.0001
Proceeds from Issuance of Preferred Stock and Preference Stock	$ 50,000,000
Fair Value, Measurements, Nonrecurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Series B Preferred Stock FV		$ 81,300,000
Business Combination, Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value adjustment		(23,082,000)
Series B Preferred Stock Warrants at closing[Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Share price (in dollars per share)	$ 4.21		$ 3.75
10% Warrants at Fully Diluted Share Count	10.00%
Series B Preferred Stock Warrant Exercise Price	$ 0.0001
Exercise price of securities excluded at closing (in dollars per share)	$ 11.50
Warrants Issued at Closing of Equity Agreement	2,545,934		900,000
Series B Preferred - Series A Conversion Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value adjustment		0
Share price (in dollars per share)	$ 4.21
Series B Preferred Stock Warrant Exercise Price	$ 0.0001
Series B Preferred - Additional 6% Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value adjustment		$ 0
6% Warrants	6.00%
Series B Preferred Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
SeriesB Preferred Shares to be Issued in Equity Agreement	50,000
Preferred stock, par value (in dollars per share)	$ 1,000	$ 1,000

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Income taxes (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Tax Contingency [Line Items]
Statutory federal tax rate			21.00%
Effective tax rates	(4.60%)	13.20%	43.00%	15.80%
Increase (decrease) in uncertain tax positions			$ 0	$ 0
Minimum
Income Tax Contingency [Line Items]
State tax rate			0.80%
Maximum
Income Tax Contingency [Line Items]
State tax rate			12.00%

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Condensed Consolidated Statement of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenue	$ 422,022	$ 279,279	$ 940,793	$ 503,487
Cost of revenue	369,152	252,271	849,728	462,765
Gross profit	52,870	27,008	91,065	40,722
Selling, general and administrative expenses	31,313	16,964	84,945	43,122
Income (loss) from operations	21,557	10,044	6,120	(2,400)
Other income (expense), net:
Interest expense, net	(13,959)	(1,579)	(35,822)	(3,960)
Other income (expense)	4,455	(1,859)	22,557	(1,848)
Income (loss) before benefit for income taxes	12,053	6,606	(7,145)	(8,208)
Benefit (provision) for income taxes	556	(870)	3,073	1,467
Net income (loss)	$ 12,609	$ 5,736	$ (4,072)	$ (6,741)
Earnings Per Share, Basic	$ 0.37	$ 0.24	$ (1.44)	$ (0.36)
Earnings Per Share, Diluted	$ 0.24	$ 0.23	$ (1.44)	$ (0.36)
Weighted Average Number of Shares Outstanding, Basic	20,446,811	21,577,650	20,425,801	21,577,650
Weighted Average Number of Shares Outstanding, Diluted	35,419,432	25,100,088	20,425,801	21,577,650

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Acquisitions

9 Months Ended

Sep. 30, 2019

Business Combinations [Abstract]

Acquisitions

Acquisitions

Acquisitions

CCS

On September 25, 2018, the Company completed its acquisition of Consolidated Construction Solutions I LLC (“CCS”) for $106.6 million in cash. The Company financed this acquisition through borrowing on its credit facility as discussed in Note 9. Debt. This acquisition is being accounted for as a business combination under the acquisition method of accounting.

The wholly-owned subsidiaries of CCS, Saiia LLC (“Saiia”) and American Civil Constructors LLC (the “ACC Companies”), generally enter into long-term contracts with both government and non-government customers to provide EPC services for environmental, heavy civil and mining projects.

William Charles

On November 2, 2018, the Company acquired William Charles Construction Group, including its wholly-owned subsidiary Ragnar Benson (“William Charles”), for $77.7 million, consisting of $73.2 million in cash and $4.5 million of the Company's common stock (477,621 shares of common stock at $9.45 share price). The Company financed a portion of this acquisition through borrowing on its credit facility as discussed in Note 9. Debt. This acquisition is being accounted for as a business combination under the acquisition method of accounting.

William Charles generally enters into contracts with a mix of government and non-government customers to provide EPC services for rail civil infrastructure, environmental and heavy civil projects. A portion of the non-governmental rail civil infrastructure contracts are longer than a year.

The following table summarizes the amounts recognized for assets acquired and liabilities assumed as of the acquisition dates at fair value. The values for CCS were finalized as of June 30, 2019 and finalized for William Charles as of September 30, 2019.

Identifiable assets acquired and liabilities assumed (in thousands)	CCS			William Charles
Cash	$	6,413		$	6,641
Accounts Receivable	58,041			69,740
Costs and estimated earnings in excess of billings on uncompleted contracts	9,512			16,095
Other current assets	1,813			7,999
Property, plant and equipment	59,952			47,899
Intangible assets:
Customer relationships	19,500			7,000
Backlog	8,400			5,500
Tradename	8,900			4,500
Deferred income taxes	(2,361		)	—
Other non-current assets	134			75
Accounts payable and accrued liabilities	(25,219		)	(60,962		)
Billings in excess of costs and estimated earnings on uncompleted contracts	(14,194		)	(14,810		)
Debt, less current portion	(52,257		)	(15,672		)
Capital lease obligations	(1,124		)	—
Other liabilities	(704		)	(907		)
Total identifiable assets	76,806			73,098
Goodwill	29,773			4,581
Total purchase consideration	$	106,579		$	77,679

* - There were no measurement period adjustments for the quarter ended September 30, 2019.

Goodwill is calculated as the excess of the consideration transferred over the net assets recognized and represents the future economic benefits arising from other assets acquired that could not be individually identified and separately recognized. Specifically, the goodwill recorded as part of the acquisitions of CCS and William Charles is related to the expected, specific synergies and other benefits that the Company believes will result from combining the operations of CCS and William Charles with the operations of IEA. This goodwill is deductible for income tax purposes, with the exception of $2.9 million for CCS that is not deductible.

Impact of Acquisitions

The following table summarizes the results of operations included in the Company's condensed consolidated statement of operations for CCS and William Charles from their respective dates of acquisition.

(in thousands)	Three months ended September 30, 2019		Nine months ended September 30, 2019
	CCS	William Charles	CCS	William Charles
Revenue	81,248	84,033	211,117	198,879
Net income (loss)	2,707	7,308	616	7,359
	Three months ended September 30, 2018		Nine months ended September 30, 2018
	CCS	William Charles	CCS	William Charles
Revenue	5,600	—	5,600	—
Net income (loss)	—	—	—	—

The following table provides the supplemental unaudited actual and pro forma total revenue and net income of the combined entity had the acquisition date of CCS and William Charles been the first day of our fiscal year 2018:

	Three months ended September 30,		Nine months ended September 30,
(in thousands)	Actual 2019	Pro forma 2018	Actual 2019		Pro forma 2018
Revenue	422,022	446,557	940,793		948,543
Net income (loss)	12,609	6,016	(4,072	)	(15,448	)
Net income (loss) per common share:
Basic earnings per share	0.37	0.25	(1.44	)	(0.77	)
Diluted earnings per share	0.24	0.24	(1.44	)	(0.77	)

The amounts in the supplemental unaudited pro forma 2018 results apply the Company's accounting policies and reflect certain adjustments to, among other things, (i) exclude the impact of transaction costs incurred in connection with the acquisitions, (ii) include additional depreciation and amortization that would have been charged assuming the same fair value adjustments to property, plant and equipment and acquired intangibles had been applied on January 1, 2018, and (iii) include additional interest expense that would have been incurred assuming the incremental borrowings the Company incurred to finance the acquisitions had been outstanding on January 1, 2018. Accordingly, these supplemental unaudited pro forma results have been prepared for comparative purposes only and are not intended to be indicative of the results of operations that would have occurred had the acquisitions actually occurred in the prior year period or indicative of the results of operations for any future period. These results do not include any potential operating efficiencies and cost savings.

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Segments (Notes)

9 Months Ended

Sep. 30, 2019

Segments [Abstract]

Segment Reporting Disclosure [Text Block]

Segments

The Company operated as one reportable segment for 2018 and evaluated the business as a renewable construction company. In late 2018, the Company completed two significant acquisitions that construct projects outside of the renewable market. As of September 30, 2019, we operate our business as two reportable segments: the Renewables segment and the Specialty Civil segment. The 2018 segment presentation has been recast to be consistent to the 2019 segmentation.

Each of our reportable segments is comprised of similar business units that specialize in services unique to the respective markets that each segment serves. The classification of revenue and gross profit for segment reporting purposes can at times require judgment on the part of management. Our segments may perform services across industries or perform joint services for customers in multiple industries. To determine reportable segment gross profit, certain allocations, including allocations of shared and indirect costs, such as facility costs, equipment costs and indirect operating expenses, were made based on segment revenue.

Separate measures of the Company’s assets, including capital expenditures and cash flows by reportable segment are not produced or utilized by management to evaluate segment performance. A substantial portion of the Company’s fixed assets are owned by and accounted for in our equipment department, including operating machinery, equipment and vehicles, as well as office equipment, buildings and leasehold improvements, and are used on an interchangeable basis across our reportable segments. As such, for reporting purposes, total under/over absorption of equipment expenses consisting primarily of depreciation is allocated to the Company's two reportable segments based on segment revenue.

The following is a brief description of the Company's reportable segments:

The Renewables segment operates throughout the United States and specializes in a range of services that include full EPC project delivery, design, site development, construction, installation and restoration of infrastructure services for the wind and solar industries.

The Specialty Civil segment operates throughout the United States and specializes in a range of services that include:

• Heavy civil construction services such as high-altitude road and bridge construction, specialty paving, industrial maintenance and other local, state and government projects.

• Environmental remediation services such as site development, environmental site closure and outsourced contract mining and coal ash management services.

• Rail Infrastructure services such as planning, creation and maintenance of infrastructure projects for major railway and intermodal facilities construction.

Segment Revenue

Revenue by segment was as follows:

	Three months ended September 30,								Nine months ended September 30,
(in thousands)	2019				2018				2019				2018
Segment	Revenue		% of Total Revenue		Revenue		% of Total Revenue		Revenue		% of Total Revenue		Revenue		% of Total Revenue
Renewables	$	242,654	57.5	%	$	262,477	94.0	%	$	496,863	52.8	%	$	480,362	95.4	%
Specialty Civil	179,368		42.5	%	16,802		6.0	%	443,930		47.2	%	23,125		4.6	%
Total revenue	$	422,022	100.0	%	$	279,279	100.0	%	$	940,793	100.0	%	$	503,487	100.0	%

Segment Gross Profit

Gross profit by segment was as follows:

	Three months ended September 30,								Nine months ended September 30,
(in thousands)	2019				2018				2019				2018
Segment	Gross Profit		Gross Profit Margin		Gross Profit		Gross Profit Margin		Gross Profit		Gross Profit Margin		Gross Profit		Gross Profit Margin
Renewables	$	27,469	11.3	%	$	24,822	9.5	%	$	45,806	9.2	%	$	37,578	7.8	%
Specialty Civil	25,401		14.2	%	2,186		13.0	%	45,259		10.2	%	3,144		13.6	%
Total gross profit	$	52,870	12.5	%	$	27,008	9.7	%	$	91,065	9.7	%	$	40,722	8.1	%

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Debt

9 Months Ended

Sep. 30, 2019

Debt Disclosure [Abstract]

Debt

Debt

Debt consists of the following obligations as of:

	September 30, 2019		December 31, 2018
Term loan	277,688		300,000
Line of credit	—		46,500
Commercial equipment notes	3,820		5,341
Total principal due for long-term debt	281,508		351,841
Unamortized debt discount and issuance costs	(23,783	)	(23,534	)
Less: Current portion of long-term debt	(31,119	)	(32,580	)
Long-term debt, less current portion	226,606		295,727
Debt - Series B Preferred Stock (1)	104,135		—
Unamortized debt discount and issuance costs	(27,369	)	—
Long-term Series B Preferred Stock	76,766		—

⁽¹⁾ The Company has accrued a cumulative of $4.1 million in accrued dividends to holders of Series B Preferred Stock, which is recorded as interest expense in the Company's condensed consolidated statements of operations for the quarter ended September 30, 2019.

Third Amended and Restated Credit Agreement

On May 20, 2019, the Third Amended and Restated Credit and Guarantee Agreement (the “Third A&R Credit Agreement”) became effective.

Term loan borrowings mature on September 25, 2024 and are subject to quarterly amortization of principal, commencing on March 31, 2019, in an amount equal to 2.50% of the aggregate principal amount of such loans. Beginning with 2020, an additional annual payment is required equal to 75% of Excess Cash Flow (as defined in the Third A&R Credit Agreement) for the preceding fiscal year if such Excess Cash Flow is greater than $2.5 million, with the percentage of Excess Cash Flow subject to reduction based upon the Company’s consolidated leverage ratio.

Borrowings under the term loan are required to be repaid on the last business day of each March, June, September and December, continuing with the first fiscal quarter following the effective date of the Third A&R Credit Agreement, in an amount equal to 2.5% of the initial balance of the initial term loan and will not be able to be reborrowed. Borrowings under the revolving line of credit mature on September 25, 2023.

Interest on the consenting lender term loan tranche accrues at a per annum rate of, at the Company's option, (x) LIBOR plus a margin of 8.25% or (y) an alternate base rate plus a margin of 7.25%; provided, however, that upon achieving a First Lien Net Leverage Ratio (as defined below) of no greater than 2.67:1.00, the margin shall permanently step down to (y) for LIBOR loans, 6.75% and (x) for alternative base rate loans, 5.75%. Interest on the non-consenting lender term loan tranche will stay at a per annum rate of, at the Company’s option, (x) LIBOR plus a margin of 6.25% or (y) an alternate base rate plus a margin of 5.25%. Interest on initial revolving facility borrowings and swing line loans accrues at a rate of, at the Company's option, (x) LIBOR plus a margin of 4.25% or (y) the applicable base rate plus a margin of 3.25%. The weighted average interest rate under the Third A&R Credit Agreement as of September 30, 2019 and December 31, 2018, was 10.42% and 8.82%, respectively.

The terms of the Third A&R Credit Agreement include customary affirmative and negative covenants and provide for customary events of default, which include, among others, nonpayment of principal or interest and failure to timely deliver financial statements. Under the Third A&R Credit Agreement, the financial covenant to which the Credit Parties as defined therein are subject provides that the First Lien Net Leverage Ratio (as defined therein) may not exceed (i) prior to the fiscal quarter ending December 31, 2019, 4.75:1.0, (ii) from and prior to the fiscal quarter ending December 31, 2020, 3.50:1.0, (iii) from and prior to the fiscal quarter ending December 31, 2021, 2.75:1.0, and (iv) from and after March 31, 2022, 2.25:1.0. Under the Third A&R Credit Agreement, the Company is not to obtain an equity infusion to cure for any covenant violations for fiscal quarter ending in 2019, excluding the Series B Preferred Stock. Thereafter, the Company will have access to a customary equity cure.

The Third A&R Credit Agreement also includes certain limitations on the payment of cash dividends on the Company's common shares and provides for other restrictions on (subject to certain exceptions) liens, indebtedness (including guarantees and other contingent obligations), investments (including loans, advances and acquisitions), mergers and other fundamental changes and sales and other dispositions of property or assets, among others.

Letters of Credit and Surety Bonds

In the ordinary course of business, the Company is required to post letters of credit and surety bonds to customers in support of performance under certain contracts. Such letters of credit are generally issued by a bank or similar financial institution. The letter of credit or surety bond commits the issuer to pay specified amounts to the holder of the letter of credit or surety bond under certain conditions. If the letter of credit or surety bond issuer were required to pay any amount to a holder, the Company would be required to reimburse the issuer, which, depending upon the circumstances, could result in a charge to earnings. As of September 30, 2019, and December 31, 2018, the Company was contingently liable under letters of credit issued under its Third A&R Credit Agreement or its old credit facility, respectively, in the amount of $21.0 million and $3.0 million, respectively, related to projects. In addition, as of September 30, 2019 and December 31, 2018, the Company had outstanding surety bonds on projects of $2,017.6 million and $1,682.0 million, respectively.

Contractual Maturities

Contractual maturities of the Company's debt and capital lease (see Note 10. Commitments and Contingencies) obligations as of September 30, 2019 (in thousands):

Remainder of 2019	$	13,965
2020	55,988
2021	51,826
2022	47,276
2023	32,905
Thereafter	257,591
Total contractual obligations	$	459,551

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Contracts in progress

9 Months Ended

Sep. 30, 2019

Contractors [Abstract]

Contracts in progress

Contracts in Progress

Contracts in progress were as followsas of the dates indicated(in thousands):

	September 30, 2019			December 31, 2018
Costs on contracts in progress	$	1,189,496		$	935,820
Estimated earnings on contracts in progress	111,451			76,883
Revenue on contracts in progress	1,300,947			1,012,703
Less: billings on contracts in progress	(1,263,221		)	(1,027,816		)
Net underbillings (overbillings)	$	37,726		$	(15,113	)

The above amounts have been included in the accompanying condensed consolidated balance sheets under the following captions (in thousands):

	September 30, 2019			December 31, 2018
Costs and estimated earnings in excess of billings on uncompleted contracts	$	109,540		$	47,121
Billings in excess of costs and earnings on uncompleted contracts	(71,814		)	(62,234		)
Net underbillings (overbillings)	$	37,726		$	(15,113	)

Provision for loss of $0.1 million and $1.4 million as of September 30, 2019 and December 31, 2018, respectively, is included in billings in excess of costs and earnings on uncompleted contracts.

The Company recognizes a contract asset within costs and estimated earnings in excess of billings on uncompleted contracts in the condensed consolidated balance sheet for revenue earned related to unapproved change orders that are probable of recovery. For the quarter ended September 30, 2019 and the year ended December 31, 2018, the Company had unapproved change orders of $69.9 million and $45.0 million, respectively.

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Segments (Tables)

9 Months Ended

Sep. 30, 2019

Segment Reporting Information [Line Items]

Reconciliation of Revenue from Segments to Consolidated [Table Text Block]

Segment Revenue

Revenue by segment was as follows:

	Three months ended September 30,								Nine months ended September 30,
(in thousands)	2019				2018				2019				2018
Segment	Revenue		% of Total Revenue		Revenue		% of Total Revenue		Revenue		% of Total Revenue		Revenue		% of Total Revenue
Renewables	$	242,654	57.5	%	$	262,477	94.0	%	$	496,863	52.8	%	$	480,362	95.4	%
Specialty Civil	179,368		42.5	%	16,802		6.0	%	443,930		47.2	%	23,125		4.6	%
Total revenue	$	422,022	100.0	%	$	279,279	100.0	%	$	940,793	100.0	%	$	503,487	100.0	%

Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table Text Block]

Segment Gross Profit

Gross profit by segment was as follows:

	Three months ended September 30,								Nine months ended September 30,
(in thousands)	2019				2018				2019				2018
Segment	Gross Profit		Gross Profit Margin		Gross Profit		Gross Profit Margin		Gross Profit		Gross Profit Margin		Gross Profit		Gross Profit Margin
Renewables	$	27,469	11.3	%	$	24,822	9.5	%	$	45,806	9.2	%	$	37,578	7.8	%
Specialty Civil	25,401		14.2	%	2,186		13.0	%	45,259		10.2	%	3,144		13.6	%
Total gross profit	$	52,870	12.5	%	$	27,008	9.7	%	$	91,065	9.7	%	$	40,722	8.1	%

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Acquisitions Acquisition of CCS and WC (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Nov. 02, 2018	Sep. 25, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Goodwill	$ 37,373						$ 37,373		$ 40,257			$ 3,020
Revenue	422,022			$ 279,279			940,793	$ 503,487
Net loss	12,609	$ 6,208	$ (22,889)	5,736	$ 4,915	$ (17,392)	(4,072)	(6,741)
Business Acquisition, Pro Forma Revenue	422,022			446,557			940,793	948,543
Business Acquisition, Pro Forma Net Income (Loss)	$ 12,609			$ 6,016			$ (4,072)	$ (15,448)
Business Acquisition, Pro Forma Earnings Per Share, Basic	$ 0.37			$ 0.25			$ (1.44)	$ (0.77)
Business Acquisition, Pro Forma Earnings Per Share, Diluted	$ 0.24			$ 0.24			$ (1.44)	$ (0.77)
CCS [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents											$ 6,413
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables											58,041
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Costs and Estimated Earnings in Excess of Billings											9,512
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets											1,813
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment											59,952
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Customer Relationships											19,500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangibles Backlog											8,400
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangibles Tradename											8,900
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets											(2,361)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets											134
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accounts Payable and Accrued											(25,219)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Billings in excess of costs and estimated earnings on contracts											(14,194)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other											(52,257)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Capital Lease Obligation											(1,124)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities											(704)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net											76,806
Goodwill											29,773
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net											$ 106,579
Goodwill, Nondeductible Portion, Amount	$ 2,900						$ 2,900
Revenue	81,248			$ 5,600			211,117	$ 5,600
Net loss	2,707			0			616	0
William Charles [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents										$ 6,641
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables										69,740
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Costs and Estimated Earnings in Excess of Billings										16,095
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets										7,999
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment										47,899
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Customer Relationships										7,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangibles Backlog										5,500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangibles Tradename										4,500
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets										0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets										75
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accounts Payable and Accrued										(60,962)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Billings in excess of costs and estimated earnings on contracts										(14,810)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other										(15,672)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Capital Lease Obligation										0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities										(907)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net										73,098
Goodwill										4,581
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net										$ 77,679
Revenue	84,033			0			198,879	0
Net loss	$ 7,308			$ 0			$ 7,359	$ 0

XML

Subsequent Event (Details) - USD ($)	Oct. 29, 2019	Sep. 30, 2019	Dec. 31, 2018
Subsequent Event [Line Items]
Preferred stock, par value (in dollars per share)		$ 0.0001	$ 0.0001
Subsequent Event
Subsequent Event [Line Items]
SeriesB Preferred Shares to be Issued in Equity Agreement	80,000
Warrants Issued at Closing of Equity Agreement	3,568,750
Equity Agreement Dollar Amount to be Funded	$ 80,000,000
12 day funding requirement	12 days
ECA half conditional shares	15,000
ECA Total Conditional Shares	30,000
HalfSeriesB-3WarrantsECA	515,625
Total Series B-3 Warrants After Initial Closing ECA	1,031,250
Maximum amount of consideration after initial closing ECA	$ 30,000,000
Shares available for purchase as part of rights offering	15,000
Warrant rate for conversion on rights offering	5.5
Dollar exchange rate series B-3 rights offering warrants	$ 160
Minimum investment for common to participate in tranche 2	50,000
Maximum percentage of common shareholders tranche 2	$ 2,250,000
Series A Exchange Percentage for Series B-3	50.00%
Preferred stock, par value (in dollars per share)	$ 1,000

XML

Concentrations (Details) - Customer Concentration Risk [Member]	3 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
2019 | Concentration Company A [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	24.10%		22.60%
2019 | Concentration Company B [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	16.70%		12.10%
2019 | Concentration Company C [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage		11.70%
2019 | Concentration Company D [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	11.70%
Accounts Receivable % | Concentration Company A [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage				20.00%
Accounts Receivable % | Concentration Company C [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage				19.00%

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Earnings per share

9 Months Ended

Sep. 30, 2019

Earnings Per Share [Abstract]

Earnings per share

Earnings Per Share

The Company calculates earnings (loss) per share (“EPS”) in accordance with ASC 260, Earnings per Share. Basic EPS is computed by dividing income (loss) available to common stockholders by the weighted average number of common shares of common stock outstanding during the period.

Subsequent to the issuance of the Company's condensed consolidated financial statements for the three and six months ended June 30, 2019, the Company identified a computational error related to the number of outstanding common shares included in its earnings (loss) per share calculations during 2018 and 2019. Management has concluded that the impact of this error on all historical periods is immaterial and therefore has not adjusted the earnings (loss) per share amounts for any periods prior to September 30, 2019.  Rather, the adjustment to remove 1.8 millionunvested shares has been made beginning with the three- and nine-months ended September 30, 2019.  The number of outstanding shares of Common Stock for voting purposes remains at 22.3 million shares, as the aforementioned 1.8 million shares are entitled to vote those shares during the vesting period.

Income (loss) available to common stockholders is computed by deducting the dividends accumulated for the period on cumulative preferred stock from net income. If there is a net loss, the amount of the loss is increased by those preferred dividends. The contingent consideration fair value adjustment is a mark-to-market adjustment based on the decline of approximately 80% in the Company's stock price from December 31, 2018 to June 30, 2019, coupled with the Company not anticipating reaching Adjusted EBITDA requirements outlined in the original agreement at September 30, 2019, see Note. 8 Fair Value of Financial Instruments. The Company is required to reverse the mark-to-market adjustment from the numerator as shown below.

Diluted EPS assumes the dilutive effect of (i) contingently issuable earn-out shares, (ii) Series A cumulative convertible preferred stock, using the if-converted method, and (iii) the assumed exercise of in-the-money stock options and warrants and the assumed vesting of outstanding restricted stock units (“RSUs”), using the treasury stock method.

Whether the Company has net income or a net loss determines whether potential issuances of common stock are included in the diluted EPS computation or whether they would be anti-dilutive. As a result, if there is a net loss, diluted EPS is computed in the same manner as basic EPS is computed. Similarly, if the Company has net income but its preferred dividend adjustment made in computing income available to common stockholders results in a net loss available to common stockholders, diluted EPS would be computed the same as basic EPS.

The calculations of basic and diluted EPS, are as follows ($ in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2019		2018		2019		2018
Numerator:
Net income (loss)	12,609		5,736		(4,072	)	(6,741	)
Less: Convertible Preferred Stock dividends	(759	)	(524	)	(2,202	)	(1,072	)
Less: Contingent consideration fair value adjustment (see Note 8)	(4,247	)	—		(23,082	)	—
Net income (loss) available to common stockholders	7,603		5,212		(29,356	)	(7,813	)
Denominator:
Weighted average common shares outstanding - basic(1)	20,446,811		21,577,650		20,425,801		21,577,650
Series B Preferred - Warrants	2,845,840		—		—		—
Convertible Series A Preferred Stock	11,486,534		3,522,438		—		—
Restricted stock units	640,247		—		—		—
Weighted average shares for diluted computation	35,419,432		25,100,088		20,425,801		21,577,650
Anti-dilutive: (2)(3)
Convertible Series A Preferred	—		—		8,968,856		2,832,765
Series B Preferred - Warrants at closing	—		—		1,325,779		—
RSUs	—		—		542,421		—
Basic EPS	0.37		0.24		(1.44	)	(0.36	)
Diluted EPS	0.24		0.23		(1.44	)	(0.36	)

(1) The contingent earn-out shares were not included at September 30, 2019 and were removed from September 30, 2018, respectively. See Note 8. Fair Value of Financial Instruments for discussion regarding the Company's contingently issuable earn-out shares.

(2) Warrants to purchase 8,480,000 shares of common stock at $11.50 per share were outstanding at September 30, 2019 and 2018 but were not potentially dilutive as the warrants’ exercise price was greater than the average market price of the common stock during the period. 646,405 of vested and unvested Options and 817,817 of unvested RSUs were also not potentially dilutive as of September 30, 2019 as the respective exercise price or average stock price required for vesting of such awards was greater than the average market price of the common stock during the period.

(3) The 1.8 million unvested earnout shares were not included at September 30, 2019 due to the exercise price being greater than the average market price of the common stock during the period.

Series A Preferred Stock

As of September 30, 2019, we had 34,965 shares of Series A Preferred Stock with an initial stated value of $1,000 per share plus accumulated but unpaid dividends, for total consideration of $37.7 million. Dividends are paid on the Series A Preferred Stock when declared by our Board. To extent permitted, dividends are required to be paid in cash quarterly in arrears on each March 31, June 30, September 30 and December 31 on the stated value at the following rates:

•6% per annum from the original issuance of the Series A Preferred Stock on March 26, 2018 (the “Closing Date”) until the date (the “18 Month Anniversary Date”) that is 18 months from the Closing Date; and

•10% per annum during the period from and after the 18 Month Anniversary Date;

So long as any shares of Series B Preferred Stock of the Company, (the “Series B Preferred Stock”), which are currently either designated as Series B-1 Preferred Stock (“Series B-1 Preferred Stock”) or Series B-2 Preferred Stock (“Series B-2 Preferred Stock”), and (referred to collectively as “Series B Preferred Stock”), are outstanding or from and after the occurrence of any non-payment event or default event and until cured or waived, the foregoing rates will increase by 2% per annum.

If not paid in cash, dividends will accrue on the stated value and will increase the stated value on and effective as of the applicable dividend date without any further action by the Board at the following rates:

•8% per annum during the period from May 20, 2019 through the 18 Month Anniversary Date; and

•12% per annum during the period from and after the 18 Month Anniversary Date.

As of September 30, 2019, the Company has accrued a cumulative of $2.7 million in dividends to holders of Series A Preferred Stock as a reduction to additional paid-in capital.

Series B Preferred Stock

As of September 30, 2019, we had 100,000 shares of Series B Preferred Stock outstanding, with each share having an initial stated value of $1,000 plus accumulated but unpaid dividends. Our common stock and Series A Preferred Stock are junior to the Series B Preferred Stock. Dividends are paid on the Series B Preferred Stock when declared by our Board. To the extent not prohibited by applicable law, dividends are required to be declared and paid in cash quarterly in arrears on each March 31, June 30, September 30 and December 31 at the following rates:

• On Series B-1 Preferred Stock with respect to any dividend period for which the Total Net Leverage Ratio (as defined in the Third A&R Credit Agreement (as defined in see Note. 9 Debt) is greater than 1.50:1.00, 15% per annum (or 13.5% per annum if a deleveraging event (as defined below) has occurred prior to the date dividends are paid with respect to such dividend period) and (ii) with respect to any dividend period for which the Total Net Leverage Ratio is less than or equal to 1.50:1.00, 13.5% per annum. 

• On Series B-2 Preferred Stock with respect to any dividend period for which the Total Net Leverage Ratio is greater than 1.50:1.00, 15% per annum (or 13.5% per annum if a deleveraging event has occurred prior to the date dividends are paid with respect to such dividend period) and (ii) with respect to any dividend period for which the Total Net Leverage Ratio is less than or equal to1.50:1.00, 12% per annum.

If not paid in cash, dividends will accrue on the stated value and will increase the stated value on Series B Preferred Stock and is effective as of the applicable dividend date without any further action by the Board at a rate of 18% per annum; provided that, during the period from the occurrence of a deleveraging event until the date that is two years from such deleveraging event, such dividend rate shall instead be 15% per annum. A deleveraging event means certain equity financings or issuances of stock where the proceeds of such equity financings are used exclusively to permanently reduce senior secured indebtedness by at least $50.0 million, or the Total Net Leverage Ratio as of the last day of any fiscal quarter is less than or equal to 1.50:1.00.

The Company has accrued a cumulative of $4.1 million in accrued dividends to holders of Series B Preferred Stock, which is recorded as interest expense in the Company's condensed consolidated statements of operations for the quarter ended September 30, 2019. See Note 8. Fair Value of Financial Instruments for discussion regarding the Company's valuation of Series B Preferred Stock.

Stock Compensation

Under guidance of ASC Topic 718 “Compensation — Stock Compensation,” stock-based compensation expense is measured at the date of grant, based on the calculated fair value of the stock-based award, and is recognized as expense over the employee’s requisite service period (generally the vesting period of the award).

The fair value of the RSUs was based on the closing market price of our common stock on the date of the grant. Stock compensation expense for the RSUs is being amortized using the straight-line method over the service period. For the three months ended September 30, 2019 and 2018, we recognized $1.1 million and $0.5 million in compensation expense, respectively, and $2.8 million and $0.5 million for the nine months ended September 30, 2019 and 2018, respectively.

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Condensed Statements of Stockholders Equity (Deficit) Statement - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Common Stock [Member] Common Stock [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Common Stock [Member]	Treasury Stock [Member]	Treasury Stock [Member] Treasury Stock [Member]	Retained Earnings [Member]	Retained Earnings [Member] Preferred Stock [Member]
Shares, Issued		21,578
Stockholders' Equity Attributable to Parent	$ (10,019)	$ 2		$ 0		$ 0		$ (10,021)
Net loss	(17,392)							(17,392)
Stock Issued During Period, Value, New Issues	(34,965)								$ (34,965)
Adjustments to Additional Paid in Capital, Contingent Consideration	(69,373)							(69,373)
Adjustments to Additional Paid in Capital, Business Combination	(22,973)							(22,973)
Net loss	(6,741)
Shares, Issued		21,578
Stockholders' Equity Attributable to Parent	(154,722)	$ 2		0		0		(154,724)
Net loss	4,915							4,915
Adjustments to Additional Paid in Capital, Business Combination	(2,843)							(2,843)
Dividends, Preferred Stock, Stock	(548)							(548)
Shares, Issued		21,578
Stockholders' Equity Attributable to Parent	(153,198)	$ 2		0		$ 0		(153,200)
Net loss	5,736							5,736
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	500			500
Dividends, Preferred Stock, Stock	(524)							(524)
Shares, Issued		21,578				0
Stockholders' Equity Attributable to Parent	(147,486)	$ 2		500		$ 0		(147,988)
Shares, Issued		22,155
Stockholders' Equity Attributable to Parent	(131,178)	$ 2		4,751		$ 0		(135,931)
Net loss	(22,889)							(22,889)
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	1,040			1,040
Stock Issued During Period, Shares, New Issues			111
Stock Issued During Period, Value, New Issues	159	$ 0			$ 235
Adjustments to Additional Paid in Capital, Business Combination	(2,754)							(2,754)
Treasury Stock, Shares							(14)
Dividends, Preferred Stock, Stock	(525)			(525)
Net loss	(4,072)
Shares, Issued		22,266				(14)
Stockholders' Equity Attributable to Parent	(150,639)	$ 2		5,501		$ (76)		(156,066)
Treasury Stock, Value							$ (76)
Net loss	6,208							6,208
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	720			720
Adjustments to Additional Paid in Capital, Warrant Issued	9,422			9,422
Dividends, Preferred Stock, Stock	(918)			(918)
Shares, Issued		22,266				(14)
Stockholders' Equity Attributable to Parent	(135,207)	$ 2		14,725		$ (76)		(149,858)
Net loss	12,609							12,609
Earnout Shares removed from outstanding shares			(1,805)
Earnout shares monetary value removed	0	$ 0
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	1,052			1,052
Adjustments to Additional Paid in Capital, Warrant Issued	3,000			3,000
Dividends, Preferred Stock, Stock	(759)			(759)
Shares, Issued		20,461				(14)
Stockholders' Equity Attributable to Parent	$ (119,305)	$ 2		$ 18,018		$ (76)		$ (137,249)

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2019	Nov. 12, 2019
Document and Entity Information [Abstract]
Entity Registrant Name	Infrastructure & Energy Alternatives, Inc.
Entity Central Index Key	0001652362
Document Type	10-Q
Document Period End Date	Sep. 30, 2019
Document Fiscal Year Focus	2019
Amendment Flag	false
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Small Business	true
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		22,252,489

XML

Fair value of financial instruments

9 Months Ended

Sep. 30, 2019

Fair Value Disclosures [Abstract]

Fair value of financial instruments

Fair Value of Financial Instruments

The Company applies ASC 820, Fair Value Measurement, which establishes a framework for measuring fair value and clarifies the definition of fair value within that framework. ASC 820 defines fair value as an exit price, which is the price that would be received for an asset or paid to transfer a liability in the Company’s principal or most advantageous market in an orderly transaction between market participants on the measurement date. The fair value hierarchy established in ASC 820 generally requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Observable inputs reflect the assumptions that market participants would use in pricing the asset or liability and are developed based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the entity’s own assumptions based on market data and the entity’s judgments about the assumptions that market participants would use in pricing the asset or liability, and are to be developed based on the best information available in the circumstances.

The valuation hierarchy is composed of three levels. The classification within the valuation hierarchy is based on the lowest level of input that is significant to the fair value measurement. The levels within the valuation hierarchy are described below:

Level 1 — Assets and liabilities with unadjusted, quoted prices listed on active market exchanges. Inputs to the fair value measurement are observable inputs, such as quoted prices in active markets for identical assets or liabilities.

Level 2 — Inputs to the fair value measurement are determined using prices for recently traded assets and liabilities with similar underlying terms, as well as direct or indirect observable inputs, such as interest rates and yield curves that are observable at commonly quoted intervals.

Level 3 — Inputs to the fair value measurement are unobservable inputs, such as estimates, assumptions, and valuation techniques when little or no market data exists for the assets or liabilities.

The following table sets forth information regarding the Company's assets measured at fair value on a recurring basis (in thousands):    

		Fair Value Measurements at Reporting Date
	Amount recorded on balance sheet	Quoted Prices in Active Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Liabilities as of December 31, 2018
Contingent consideration	23,082	—	—	23,082

		Fair Value Measurements at Reporting Date
	Amount recorded on balance sheet	Quoted Prices in Active Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Liabilities as of September 30, 2019
Contingent consideration	—	—	—	—
Series B-1 Preferred Stock - Series A Conversion Warrants	4,200	—	—	4,200
Series B-1 Preferred Stock - Additional 6% Warrants	400	—	—	400

The following is a reconciliation of the beginning and ending balances for the periods indicated of recurring fair value measurements using Level 3 inputs (in thousands):

	Contingent Consideration		Series B Preferred - Series A Conversion Warrants		Series B Preferred - Additional 6% Warrants
Beginning Balance, December 31, 2018	23,082		$	—	$	—
Preferred Series B-1 Stock - Additional Warrants	—		4,200		400
Fair value adjustment	(23,082	)	—		—
Ending Balance, September 30, 2019	—		4,200		400

Contingent Consideration

Pursuant to the original merger agreement with M III Acquisition Corp., the Company shall issue up to an additional 9,000,000 shares of common stock, which shall be fully earned if the final 2019 adjusted EBITDA targets are achieved. As of September 30, 2019, the Company recorded an adjustment of $23.1 million to the liability primarily based on a significant decrease in the Company's stock price for the first six months of 2019 of approximately 80.0% (from $8.61 at December 31, 2018 to $2.04 at June 30, 2019), coupled with the Company not anticipating reaching EBITDA requirements outlined in the original agreement as of September 30, 2019.

The following table sets forth information regarding the Company's assets measured at fair value on a non-recurring basis (in thousands):    

		Fair Value Measurements
	Amount recorded on balance sheet	Quoted Prices in Active Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Liabilities:
Series B-1 and Series B-2 Preferred Stock	81,300	—	—	81,300
Equity:
Series B-1 Preferred Stock - Warrants at closing	14,100	—	—	14,100

On May 20, 2019, the Company entered into the Amended and Restated Equity Commitment Agreement (the “First Equity Commitment Agreement”), by and among the Company and the commitment parties thereto. Pursuant to the First Equity Commitment Agreement, the Company issued and sold on May 20, 2019, 50,000 shares of Series B-1 Preferred Stock, with each share having an initial stated value of $1,000 plus accumulated but unpaid dividends for gross cash proceeds of $50.0 million. The First Equity Commitment Agreement also required the Company to provide warrants for common stock at closing that equaled 10% of the fully diluted issued and outstanding common stock as of such date (the “Warrants at closing”), and in the future could be required to provide additional warrants in the event of conversion of the Series A Preferred Stock (“Series A Conversion Warrants”) and warrants for up to 6% of the fully diluted issued and outstanding common stock if the Company fails to meet certain Adjusted EBITDA thresholds on a trailing twelve-month basis on the last calendar day of May 2020 through April 2021 (the “Additional 6% Warrants”).

On August 13, 2019, the Company entered into the Second Equity Commitment Agreement (the “Second Equity Commitment Agreement”). Pursuant to the Second Equity Commitment Agreement, the Company issued and sold on August 30, 2019, 50,000 shares of Series B-2 Preferred Stock and 900,000 warrants to purchase common stock (“Warrants”) for an aggregate purchase price of $50.0 million.

The information below describes the balance sheet classification and the recurring/nonrecurring fair value measurement:

Series B-1 and Series B-2 Preferred Stock (non-recurring) - The Series B-1 and Series B-2 Preferred Stock were recorded at relative fair value as debt which was estimated using a discounted cashflow model based on certain significant unobservable inputs, such as accumulated dividend rates, and projected Adjusted EBITDA for the life of the Series B Preferred Stock. The fair value of the liability for each of the transactions closed on May 20, 2019 and August 30, 2019, was a combined $81.3 million and recorded on the balance sheet as debt.

Series B-1 and Series B-2 Preferred Stock - Warrantsat closing(non-recurring) - The Warrants at closing, with an exercise price of $0.0001, represented (on an if-converted to common stock basis) 10% of the issued and outstanding common stock of the Company based on the Company’s fully diluted share count on May 20, 2019 (including the number of shares of common stock that may be issued pursuant to all restricted stock awards, restricted stock units, stock options and any other securities or rights (directly or indirectly) convertible into, exchangeable for or to subscribe for common stock that are outstanding on May 20, 2019 (excluding any shares of common stock issuable (a) pursuant to the merger agreement for our business combination, (b) upon conversion of shares of Series A Preferred Stock, (c) upon the exercise of any warrant with an exercise price of $11.50 or higher or (d) upon the exercise of any equity issued pursuant to the Company’s long term incentive plan or other equity plan with a strike price of $11.50 or higher). The 2,545,934 if-converted shares of common stock at closing were valued at the closing stock price of $4.21 on May 20, 2019 and recorded in additional paid in capital.

On August 30, 2019, 900,000 if-converted shares of common stock were issued and were valued at the closing stock price of $3.75 and recorded in additional paid in capital.

Series B-1 Preferred Stock - Series A ConversionWarrants(recurring) - The certificate of designation for the Series A Preferred Stock was amended in connection with the Company entering into the First Equity Commitment Agreement. The conversion rights were amended to allow the holders of Series A Preferred Stock to convert all or any portion of Series A Preferred Stock outstanding at any point in time. If converted, the holders of the Series B Preferred Stock would be entitled to additional warrants, with an exercise price of $0.0001. These warrants were fair valued using the closing stock price of $4.21 on May 20, 2019, at an estimated if-converted share count and recorded as a liability.

Series B-1 Preferred Stock - Additional 6% Warrants (recurring) - The Additional 6% Warrants are issuable if the Company fails to meet certain Adjusted EBITDA thresholds on a trailing twelve-month basis from May 31, 2020 through April 30, 2021. The Company recorded the Additional 6% Warrants at fair value, which was estimated using a Monte Carlo Simulation based on certain significant unobservable inputs, such as a risk rate premium, Adjusted EBITDA volatility, stock price volatility and projected Adjusted EBITDA for the Company for 2019. The Additional 6% Warrants were recorded as a liability.

Other financial instruments of the Company not listed in the table consist of cash and cash equivalents, accounts receivable, accounts payable and other current liabilities that approximate their fair values. Additionally, management believes that the outstanding recorded balance on the line of credit and long-term debt, further discussed in Note 9. Debt, approximates fair value due to their floating interest rates.

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Accounts receivable, net of allowance

9 Months Ended

Sep. 30, 2019

Receivables [Abstract]

Accounts receivable, net of allowance

Accounts Receivable, Net

The following table provides details of accounts receivable, net of allowance as of the dates indicated (in thousands):

	September 30, 2019			December 31, 2018
Contract receivables	$	168,413		$	161,408
Contract retainage	76,103			64,000
Accounts receivable, gross	244,516			225,408
Less: allowance for doubtful accounts	(51		)	(42		)
Accounts receivable, net	$	244,465		$	225,366

Included in costs in excess of billings as of September 30, 2019 are unapproved change orders of approximately $21.0 million for which the Company is pursuing settlement through dispute resolution.    

Activity in the allowance for doubtful accounts for the periods indicated is as follows (in thousands):

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2019			2018		2019			2018
Allowance for doubtful accounts at beginning of period	$	102		$	216	$	42		$	216
Plus: provision for allowances	30			—		90			—
Less: write-offs, net of recoveries	(81		)	—		(81		)	—
Allowance for doubtful accounts at period end	$	51		$	216	$	51		$	216

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Income taxes

9 Months Ended

Sep. 30, 2019

Income Tax Disclosure [Abstract]

Income taxes

Income Taxes

The Company’s statutory federal tax rate was 21.00% for the periods ended September 30, 2019 and 2018, respectively. State tax rates for the same period vary among states and range from approximately 0.8% to 12.0%. A small number of states do not impose an income tax.

The effective tax rates for the three months ended September 30, 2019 and 2018were (4.6)% and 13.2%, respectively. The effective tax rates for the nine months ended September 30, 2019 and 2018 were 43.0% and 15.8%, respectively. The difference between the Company’s effective tax rate and the federal statutory rate primarily results from permanent differences related to the revaluation of the contingent liability fair value adjustment and interest accrued for the Series B Preferred Stock, which is not deductible for federal and state income taxes. There were no changes in uncertain tax positions during the periods ended September 30, 2019 and 2018.

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Related party transactions (Tables)

9 Months Ended

Sep. 30, 2019

Related Party Transactions [Abstract]

Schedule of related party shareholders

Related Party Shareholders

Type of Equity	Holder	Ownership Percentage
Series A Preferred	Infrastructure and Energy Alternatives, LLC	100	%
Series B-1 Preferred Stock, Series A Conversion Warrants, Additional 6% Warrants, Warrants at closing	Ares	60	%
	Oaktree Power Opportunities Fund III Delaware, L.P.	40	%
Contingent Consideration	Infrastructure and Energy Alternatives, LLC	100	%
Series B-2 Preferred Stock	Ares	100	%

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Earnings per share - Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
Numerator:
Net income (loss)	$ 12,609	$ 6,208	$ (22,889)	$ 5,736	$ 4,915	$ (17,392)	$ (4,072)	$ (6,741)
Less: Convertible Preferred Stock dividends	(759)			(524)			(2,202)	(1,072)
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	(4,247)			0			(23,082)	0
Net income (loss) available to common stockholders	$ 7,603			$ 5,212			$ (29,356)	$ (7,813)
Denominator:
Weighted Average Number of Shares Outstanding, Basic	20,446,811			21,577,650			20,425,801	21,577,650
Weighted Average Number of Shares Outstanding, Diluted	35,419,432			25,100,088			20,425,801	21,577,650
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock	11,486,534			3,522,438			8,968,856	2,832,765
Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants	2,845,840						1,325,779	0
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	640,247						542,421	0
Entity Common Stock, Shares Outstanding	22,300,000						22,300,000
Basic EPS (in dollars per share)	$ 0.37			$ 0.24			$ (1.44)	$ (0.36)
Diluted EPS (in dollars per share)	0.24			$ 0.23			$ (1.44)	$ (0.36)
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount							8,480,000
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 11.50						$ 11.50
Employee Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount							646,000
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount							818,000
Performance Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Earnout Shares removed from outstanding shares							1,800,000

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Contracts in progress (Tables)

9 Months Ended

Sep. 30, 2019

Contractors [Abstract]

Costs in excess of billings and billings in excess of costs

Contracts in progress were as followsas of the dates indicated(in thousands):

	September 30, 2019			December 31, 2018
Costs on contracts in progress	$	1,189,496		$	935,820
Estimated earnings on contracts in progress	111,451			76,883
Revenue on contracts in progress	1,300,947			1,012,703
Less: billings on contracts in progress	(1,263,221		)	(1,027,816		)
Net underbillings (overbillings)	$	37,726		$	(15,113	)

The above amounts have been included in the accompanying condensed consolidated balance sheets under the following captions (in thousands):

	September 30, 2019			December 31, 2018
Costs and estimated earnings in excess of billings on uncompleted contracts	$	109,540		$	47,121
Billings in excess of costs and earnings on uncompleted contracts	(71,814		)	(62,234		)
Net underbillings (overbillings)	$	37,726		$	(15,113	)

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Business, Basis of Presentation and Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Accounting, Policy [Policy Text Block]

The accompanying consolidated financial statements have been prepared in accordance with GAAP.

Consolidation, Policy [Policy Text Block]

Principles of Consolidation

The accompanying condensed unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and with the instructions for Quarterly Reports on Form 10-Q and Rule 10-01 of Regulation S-X. Pursuant to these rules and regulations, certain information and footnote disclosures normally included in the annual audited consolidated financial statements prepared in accordance with GAAP have been condensed or omitted.

The condensed unaudited consolidated financial statements include the accounts of IEA and its wholly-owned direct and indirect domestic and foreign subsidiaries and in the opinion of management, these financial statements reflect all adjustments (consisting of normal recurring adjustments) that are necessary to present fairly the results of operations for the interim periods presented. The results of operations for the nine months ended September 30, 2019 are not necessarily indicative of the results that may be expected for the year ending December 31, 2019. These financial statements should be read in conjunction with the Company’s audited consolidated financial statements for the year ended December 31, 2018 and notes thereto included in the Company’s 2018 Annual Report on Form 10-K.

Segment Reporting, Policy [Policy Text Block]

Reportable Segments

We segregate our business into two reportable segments: the Renewables (“Renewables”) segment and the Heavy Civil and Industrial (“Specialty Civil”) segment. See Note 13. Segments for a description of the reportable segments and their operations.

Use of Estimates, Policy [Policy Text Block]

The preparation of the condensed consolidated financial statements in conformity with GAAP requires the use of estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and the accompanying notes. Key estimates include: the recognition of project revenue and profit or loss (which the Company defines as project revenue less project costs of revenue), in particular, on construction contracts accounted for under the percentage-of completion method, for which the recorded amounts require estimates of costs to complete projects, ultimate project profit and the amount of probable contract price adjustments as inputs; allowances for doubtful accounts; accrued self-insurance reserves; 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.

Revenue Recognition, Policy [Policy Text Block]

Revenue Recognition

Revenue under construction contracts is accounted for under the percentage-of-completion method of accounting. Under the percentage-of-completion method, the Company estimates profit as the difference between total estimated revenue and total estimated cost of a contract and recognizes that profit over the contract term based on costs incurred. Contract costs include all direct materials, labor and subcontracted costs and those indirect costs related to contract performance, such as indirect labor, supplies, tools, repairs, depreciation and the operational costs of capital equipment. The Company also has unit-price contracts that were not significant as of September 30, 2019.

The estimation process for revenue recognized under the percentage-of-completion method is based on the professional knowledge and experience of the Company’s project managers, engineers and financial professionals. Management reviews estimates of contract revenue and costs on an ongoing basis. Changes in job performance, job conditions and management’s assessment of expected contract settlements are factors that influence estimates of total contract value and total costs to complete those contracts and, therefore, the Company’s profit recognition. Changes in these factors may result in revisions to revenue, costs and income, and their effects are recognized in the period in which the revisions are determined, which could materially affect the Company’s results of operations in the period in which such changes are recognized.

Revenue derived from projects billed on a fixed-price basis totaled 98.5% and 99.8% of consolidated revenue from operations for the three months ended September 30, 2019 and 2018, respectively, and totaled 94.1% and 97.4% for the nine months ended September 30, 2019 and 2018, 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 also accounted for under the percentage of completion method totaled 1.5% and 0.2% of consolidated revenue from operations for the three months ended September 30, 2019 and 2018, respectively, and totaled 5.9% and 2.6% for the nine months ended September 30, 2019 and 2018, respectively.

For an approved change order which can be reliably estimated as to price, the anticipated revenues and costs associated with the change order are added to the total contract value and total estimated costs of the project, respectively. When costs are incurred for a) an unapproved change order which is probable to be approved or b) an approved change order which cannot be reliably estimated as to price, the total anticipated costs of the change order are added to both the total contract value and total estimated costs for the project. Once a change order becomes approved and reliably estimable, any margin related to the change order is added to the total contract value of the project. The Company actively engages in substantive meetings with its customers to complete the final approval process and generally expects these processes to be completed within a year. The amounts ultimately realized upon final acceptance by its customers could be higher or lower than such estimated amounts.

Provisions for losses on uncompleted contracts are made in the period in which such losses become evident. The Company may incur costs subject to change orders, whether approved or unapproved by the customer, and/or claims related to certain contracts. Management determines the probability that such costs will be recovered based upon engineering studies and legal opinions, past practices with the customer and specific discussions, correspondence and/or preliminary negotiations with the customer.

Classification of Construction Contract-Related Assets and Liabilities

Contract costs include all direct subcontract, material, and labor costs, and those indirect costs related to contract

performance, such as indirect labor, supplies, tools, insurance, repairs, maintenance, communications, and use of Company-owned equipment. Contract revenues are earned and matched with related costs as incurred.

Costs and estimated earnings in excess of billings on uncompleted contracts are presented as a current asset in the accompanying condensed consolidated balance sheets, and billings in excess of costs and estimated earnings on uncompleted contracts are presented as a current liability in the accompanying condensed consolidated balance sheets. The Company’s contracts vary in duration, with the duration of some larger contracts exceeding one year. Consistent with industry practices, the Company includes the amounts realizable and payable under contracts, which may extend beyond one year, in current assets and current liabilities. These contract balances are generally settled within one year.

New Accounting Pronouncements, Policy [Policy Text Block]

New Accounting Pronouncements

The effective dates shown in the following pronouncements are based on the Company's current status as an “emerging growth company.”

In May 2014, the Financial Accounting Standards Board ("FASB") issued guidance on the recognition of revenue from contracts with customers. The core principle of the guidance is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration which the company expects to receive in exchange for those goods or services. To achieve this core principle, the guidance provides a five-step analysis of transactions to determine when and how revenue is recognized. The guidance addresses several areas including transfer of control, contracts with multiple performance obligations, and costs to obtain and fulfill contracts. The guidance also requires additional disclosure about the nature, amount, timing, and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. The standard will be effective for our fiscal year 2019 annual financial statements and for interim periods beginning in fiscal year 2020.

The Company has substantially completed its assessment of the potential effects of these ASUs on its consolidated financial statements, business processes, systems and controls.  The Company’s assessment included a detailed review of representative contracts at each of the Company’s segments and a comparison of its historical accounting policies and practices to the new standard. Based on the Company’s review of various types of revenue arrangements, the Company expects to recognize revenue and earnings over time utilizing the cost-to-cost measure of progress for its fixed price contracts and other service agreements, consistent with current practice.  For these contracts, the cost-to-cost measure of progress best depicts the transfer of control of goods or services to the customer under the new standard. The Company has substantially completed its analysis of the information necessary to enable the preparation of the financial statements and related disclosures under the new standard. As part of this analysis, the Company evaluated its information technology capabilities and systems, and does not expect to incur significant information technology costs to modify systems currently in place. The Company will implement targeted changes to its internal reporting processes to facilitate gathering the data needed for reporting and disclosure under the new standard. The Company will also implement updates to its control processes and procedures, as necessary, based on changes resulting from the new standard. The Company does not expect any such updates to materially affect the Company’s internal controls over financial reporting.

The Company anticipates adopting the standard using the modified retrospective transition approach.  Under this approach, the new standard would apply to all new contracts initiated on or after January 1, 2019.  For existing contracts that have remaining obligations as of January 1, 2019, any difference between the recognition criteria in these ASUs and the Company’s current revenue recognition practices would be recognized using a cumulative effect adjustment to the opening balance of retained earnings.  Any potential effect of adoption of these ASUs has not yet been quantified; however, the Company anticipates the adoption will have an impact on both the amount and timing of revenue recognition related to unapproved change orders.  The Company is training its impacted employees in business segments for the implementation of the new standard, and continues developing the disclosures required by the new standard. The Company is also reviewing certain contracts entered into by its business segments subsequent to its initial assessment that are expected to have performance obligations remaining as of January 1, 2019 for any cumulative effect adjustments that may be required upon adoption.

In February 2016, the FASB issued ASU 2016-02,Leases (Topic 842). Under ASU 2016-02, lessees will be required to recognize the following for all leases (with the exception of short-term leases) at the commencement date: 1) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis, and 2) 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. ASU 2016-02 required entities to adopt the new leases standard using a modified retrospective method and initially apply the related guidance at the beginning of the earliest period presented in the financial statements.  During July 2018, the FASB issued ASU 2018-11, which allows for an additional and optional transition method under which an entity would record a cumulative-effect adjustment at the beginning of the period of adoption. See Note 10. Commitments and Contingencies for additional information about our leases. The Company will early adopt the standard and it will be effective for our fiscal year 2019 annual financial statements and for interim periods beginning in fiscal year 2020. The Company is in the process of implementing leasing software to assist in the integration of the future standard.

In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820), Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement, which eliminates certain disclosure requirements for recurring and non-recurring fair value measurements, such as the amount of and reason for transfers between Level 1 and Level 2 of the fair value hierarchy, and adds new disclosure requirements for Level 3 measurements. ASU 2018-13 is effective for all entities for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, with early adoption permitted for any eliminated or modified disclosures. Certain disclosures per ASU 2018-13 are required to be applied on a retrospective basis and others on a prospective basis. The Company is currently assessing the impact these changes will have on its disclosure requirements for fair value measurement.

Management has evaluated other recently issued accounting pronouncements and does not believe that they will have a significant impact on the financial statements and related disclosures.

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Goodwill and Intangible Assets, net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Goodwill [Roll Forward]
Goodwill, Beginning Balance			$ 40,257	$ 3,020	$ 3,020
Goodwill, Acquired During Period					37,237
Goodwill, Purchase Accounting Adjustments			(2,884)
Goodwill, Ending Balance	$ 37,373		37,373		40,257
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	53,800		53,800		53,800
Finite-Lived Intangible Assets, Accumulated Amortization	(13,175)		(13,175)		(2,926)
Finite-Lived Intangible Assets, Net	40,625		40,625		50,874
Amortization of Intangible Assets	3,400	$ 100	10,300	$ 200
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	3,354		3,354
Finite-Lived Intangible Assets, Amortization Expense, Year Two	11,837		11,837
Finite-Lived Intangible Assets, Amortization Expense, Year Three	6,466		6,466
Finite-Lived Intangible Assets, Amortization Expense, Year Four	6,466		6,466
Finite-Lived Intangible Assets, Amortization Expense, Year Five	5,841		5,841
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	26,500		26,500		27,000
Finite-Lived Intangible Assets, Accumulated Amortization	(3,749)		(3,749)		(814)
Finite-Lived Intangible Assets, Net	22,751		$ 22,751		$ 26,186
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			6 years		7 years
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	13,400		$ 13,400		$ 13,400
Finite-Lived Intangible Assets, Accumulated Amortization	(2,635)		(2,635)		(575)
Finite-Lived Intangible Assets, Net	10,765		$ 10,765		$ 12,825
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			4 years		5 years
Order or Production Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	13,900		$ 13,900		$ 13,400
Finite-Lived Intangible Assets, Accumulated Amortization	(6,791)		(6,791)		(1,537)
Finite-Lived Intangible Assets, Net	$ 7,109		$ 7,109		$ 11,863
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			1 year		2 years

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Fair value of financial instruments - Fair Value Liabilities Measured on Nonrecurring Basis (Details) - USD ($) $ / shares in Units, $ in Thousands	Aug. 30, 2019	May 20, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Proceeds from Issuance of Preferred Stock and Preference Stock		$ 50,000
Share price (in dollars per share)				$ 2.04	$ 8.61
Series B Preferred Stock Warrants at closing[Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants Issued at Closing of Equity Agreement	900,000	2,545,934
Share price (in dollars per share)	$ 3.75	$ 4.21
Fair Value, Measurements, Nonrecurring [Member] | Series B Preferred Stock Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Series B Preferred Stock FV			$ 81,300
Fair Value, Measurements, Nonrecurring [Member] | Series B Preferred Stock Warrants at closing[Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Series B Preferred Stock Warrants FV at closing			14,100
Fair Value, Measurements, Nonrecurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Series B Preferred Stock FV			81,300
Fair Value, Measurements, Nonrecurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Series B Preferred Stock Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration			0
Fair Value, Measurements, Nonrecurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Series B Preferred Stock Warrants at closing[Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration			0
Fair Value, Measurements, Nonrecurring [Member] | Significant Other Observable Inputs (Level 2) | Series B Preferred Stock Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration			0
Fair Value, Measurements, Nonrecurring [Member] | Significant Other Observable Inputs (Level 2) | Series B Preferred Stock Warrants at closing[Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration			0
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) | Series B Preferred Stock Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration			81,300
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) | Series B Preferred Stock Warrants at closing[Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration			$ 14,100
Series B-2 Preferred Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
SeriesB Preferred Shares to be Issued in Equity Agreement	50,000
Proceeds from Issuance of Preferred Stock and Preference Stock	$ 50,000