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Basis of Presentation | 9 Months Ended
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Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Basis of Presentation | BASIS OF PRESENTATION The accompanying condensed consolidated financial statements of Ameresco, Inc. (including its subsidiaries, the “Company,” “Ameresco,” “we,” “our,” or “us”) are unaudited, according to certain rules and regulations of the Securities and Exchange Commission, and include, in our opinion, normal recurring adjustments necessary for a fair presentation in conformity with accounting principles generally accepted in the United States (“GAAP”) of the results for the periods indicated. The results of operations for the three and nine months ended September 30, 2021 are not necessarily indicative of results which may be expected for the full year. The December 31, 2020 consolidated balance sheet data was derived from audited financial statements, but certain information and footnote disclosures normally included in consolidated financial statements prepared in accordance with GAAP have been condensed or omitted. The interim condensed consolidated financial statements and accompanying notes should be read in conjunction with the audited consolidated financial statements and accompanying notes for the year ended December 31, 2020, included in our annual report on Form 10-K (“2020 Annual Report” or “2020 Form 10-K”) for the year ended December 31, 2020 filed with the Securities and Exchange Commission on March 2, 2021. Reclassification Certain prior period amounts were reclassified to conform to the presentation in the current period. Significant Risks and Uncertainties The COVID-19 pandemic has continued to result in global supply chain disruptions and the resurgence of COVID-19 and its variants has caused some governments to extend travel and other restrictions. On September 9, 2021, President Biden issued an Executive Order requiring COVID-19 vaccinations for Federal employees. As a result, we are in the process of implementing this mandate for our employees and subcontractors who work in our Federal business segment. We have considered the impact of COVID-19 on the assumptions and estimates used, which may change in response to this evolving situation. Results of future operations and liquidity could be adversely impacted by a number of factors associated with the COVID-19 pandemic including payments of outstanding receivable amounts beyond normal payment terms, supply chain disruptions, potential loss of employees due to vaccine mandates, and uncertain demand. As of the date of issuance of these condensed consolidated financial statements, we cannot reasonably estimate the extent to which the COVID-19 pandemic may impact our financial condition, liquidity, or results of operations in the foreseeable future. The ultimate impact of the pandemic on us is highly uncertain and will depend on future developments, and such impacts could exist for an extended period of time, even after the pandemic subsides.

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- Definition The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -URI http://asc.fasb.org/topic&trid=2134479 + Details
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