<SEC-DOCUMENT>0001488139-22-000102.txt : 20221028
<SEC-HEADER>0001488139-22-000102.hdr.sgml : 20221028
<ACCEPTANCE-DATETIME>20221028165331
ACCESSION NUMBER:		0001488139-22-000102
CONFORMED SUBMISSION TYPE:	8-K/A
PUBLIC DOCUMENT COUNT:		12
CONFORMED PERIOD OF REPORT:	20221026
ITEM INFORMATION:		Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
FILED AS OF DATE:		20221028
DATE AS OF CHANGE:		20221028

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Ameresco, Inc.
		CENTRAL INDEX KEY:			0001488139
		STANDARD INDUSTRIAL CLASSIFICATION:	CONSTRUCTION SPECIAL TRADE CONTRACTORS [1700]
		IRS NUMBER:				043512838
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34811
		FILM NUMBER:		221342678

	BUSINESS ADDRESS:	
		STREET 1:		111 SPEEN STREET
		CITY:			FRAMINGHAM
		STATE:			MA
		ZIP:			01701
		BUSINESS PHONE:		508-661-2200

	MAIL ADDRESS:	
		STREET 1:		111 SPEEN STREET
		CITY:			FRAMINGHAM
		STATE:			MA
		ZIP:			01701
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K/A
<SEQUENCE>1
<FILENAME>amrc-20221026.htm
<DESCRIPTION>8-K/A
<TEXT>
<XBRL>
<?xml version="1.0" ?><!--XBRL Document Created with Wdesk from Workiva--><!--Copyright 2022 Workiva--><!--r:483160c7-f7ec-462b-bcaf-dfc0ae4061bc,g:330d8cfe-17f3-44e8-8d1b-960e0dec82eb,d:8ef93eddb81d4398afd2e5abe033c7d3--><html xmlns:dei="http://xbrl.sec.gov/dei/2022" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/1999/xhtml" xmlns:ixt-sec="http://www.sec.gov/inlineXBRL/transformation/2015-08-31" xmlns:ixt="http://www.xbrl.org/inlineXBRL/transformation/2020-02-12" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ix="http://www.xbrl.org/2013/inlineXBRL" xml:lang="en-US"><head><meta http-equiv="Content-Type" content="text/html"/>


<title>amrc-20221026</title></head><body><div style="display:none"><ix:header><ix:hidden><ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:AmendmentFlag" format="ixt:fixed-true" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM180L2ZyYWc6MWI1YzQyMzhiMGU3NDg0MmE4ZDUxNTdjYzk0MTZlODMvdGFibGU6NTJlYzQ5NDUzZTUzNDhkNDgzMjUzNTg4ZTAzM2M0NmUvdGFibGVyYW5nZTo1MmVjNDk0NTNlNTM0OGQ0ODMyNTM1ODhlMDMzYzQ2ZV8xLTEtMS0xLTE0Mzg1Ng_c0354ef8-c46a-4173-8616-acd61002ebb2">TRUE</ix:nonNumeric><ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:EntityCentralIndexKey" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM180L2ZyYWc6MWI1YzQyMzhiMGU3NDg0MmE4ZDUxNTdjYzk0MTZlODMvdGFibGU6NTJlYzQ5NDUzZTUzNDhkNDgzMjUzNTg4ZTAzM2M0NmUvdGFibGVyYW5nZTo1MmVjNDk0NTNlNTM0OGQ0ODMyNTM1ODhlMDMzYzQ2ZV8yLTEtMS0xLTE0Mzg1Ng_7a1263e8-38a6-429a-a064-986d55e0018f">0001488139</ix:nonNumeric><ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:AmendmentDescription" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM180L2ZyYWc6MWI1YzQyMzhiMGU3NDg0MmE4ZDUxNTdjYzk0MTZlODMvdGFibGU6NTJlYzQ5NDUzZTUzNDhkNDgzMjUzNTg4ZTAzM2M0NmUvdGFibGVyYW5nZTo1MmVjNDk0NTNlNTM0OGQ0ODMyNTM1ODhlMDMzYzQ2ZV8zLTEtMS0xLTE0NDAwNg_317c55b7-10f7-4bbd-89f0-85a12d7b5d62">XBRL tagging</ix:nonNumeric></ix:hidden><ix:references xml:lang="en-US"><link:schemaRef xlink:type="simple" xlink:href="amrc-20221026.xsd"></link:schemaRef></ix:references><ix:resources><xbrli:context id="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001488139</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2022-10-26</xbrli:startDate><xbrli:endDate>2022-10-26</xbrli:endDate></xbrli:period></xbrli:context></ix:resources></ix:header></div><div id="i8ef93eddb81d4398afd2e5abe033c7d3_1"></div><div style="min-height:42.75pt;width:100%"><div><span><br/></span></div></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="padding:0 1pt"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:1pt solid #000000;border-top:2pt solid #000000;padding:0 1pt"></td></tr></table></div><div><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:120%">UNITED STATES</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:120%">SECURITIES AND EXCHANGE COMMISSION</span></div><div style="margin-bottom:12pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">WASHINGTON, D.C. 20549</span></div><div style="margin-bottom:12pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:18pt;font-weight:700;line-height:120%">FORM <ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:DocumentType" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGV4dHJlZ2lvbjpjYTQ0N2IwMTNhOTg0Mzg4ODFkY2VmMzM2NTVlNmNkM182MDY_b53512f1-e044-45a9-9374-0e56ecaff148">8-K/A</ix:nonNumeric></span></div><div style="margin-bottom:12pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">CURRENT REPORT</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">Pursuant to Section&#160;13 or 15(d) of the</span></div><div style="margin-bottom:12pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">Securities Exchange Act of 1934</span></div><div style="margin-bottom:12pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Date of Report (Date of earliest event reported): <ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:DocumentPeriodEndDate" format="ixt:date-monthname-day-year-en" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGV4dHJlZ2lvbjpjYTQ0N2IwMTNhOTg0Mzg4ODFkY2VmMzM2NTVlNmNkM18yMjU_e73c7785-29b5-40af-9ad2-f04f01af15e6">October 26, 2022</ix:nonNumeric></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:24pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:EntityRegistrantName" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGV4dHJlZ2lvbjpjYTQ0N2IwMTNhOTg0Mzg4ODFkY2VmMzM2NTVlNmNkM182MDc_b299fbf3-b9a5-4eab-ad96-719ece2c4aa4">Ameresco, Inc.</ix:nonNumeric></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(Exact Name of Registrant as Specified in Charter)</span><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"></td><td style="width:30.671%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:2.142%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:30.671%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:2.142%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:30.674%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:EntityIncorporationStateCountryCode" format="ixt-sec:stateprovnameen" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6Y2ViMDI0MzU1ZGVjNGMzMjhkYzg0YWNkYWQ3ZTQ2MmEvdGFibGVyYW5nZTpjZWIwMjQzNTVkZWM0YzMyOGRjODRhY2RhZDdlNDYyYV8wLTAtMS0xLTE0Mzg1Ng_8016b3c6-0242-4aa4-80fb-ffe76729bc17">Delaware</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:EntityFileNumber" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6Y2ViMDI0MzU1ZGVjNGMzMjhkYzg0YWNkYWQ3ZTQ2MmEvdGFibGVyYW5nZTpjZWIwMjQzNTVkZWM0YzMyOGRjODRhY2RhZDdlNDYyYV8wLTItMS0xLTE0Mzg1Ng_fc5411de-3309-4899-8f59-3b20ec694ab1">001-34811</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:EntityTaxIdentificationNumber" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6Y2ViMDI0MzU1ZGVjNGMzMjhkYzg0YWNkYWQ3ZTQ2MmEvdGFibGVyYW5nZTpjZWIwMjQzNTVkZWM0YzMyOGRjODRhY2RhZDdlNDYyYV8wLTQtMS0xLTE0Mzg1Ng_541d0a46-a4b6-423d-a86f-4d350e80d29e">04-3512838</ix:nonNumeric></span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(State or Other Juris-<br/>diction of Incorporation)</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(Commission<br/>File Number)</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(IRS Employer<br/>Identification No.)</span></td></tr></table></div><div style="margin-bottom:6pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:96.637%"><tr><td style="width:1.0%"></td><td style="width:15.692%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.456%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:12.061%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:3.589%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:2.220%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:49.282%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:EntityAddressAddressLine1" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6NWUwOWFkNGVjNmVhNGFiMGI1YjQ0YWFlYTE3NTY3ODYvdGFibGVyYW5nZTo1ZTA5YWQ0ZWM2ZWE0YWIwYjViNDRhYWVhMTc1Njc4Nl8wLTAtMS0xLTE0Mzg1Ng_9594ba55-664b-475c-a6d2-69de2942c3c8">111 Speen Street,</ix:nonNumeric> </span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:EntityAddressAddressLine2" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6NWUwOWFkNGVjNmVhNGFiMGI1YjQ0YWFlYTE3NTY3ODYvdGFibGVyYW5nZTo1ZTA5YWQ0ZWM2ZWE0YWIwYjViNDRhYWVhMTc1Njc4Nl8wLTEtMS0xLTE0Mzg1Ng_79cb6d35-b5a3-4067-8dd8-ccb0a8539438">Suite 410,</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:EntityAddressCityOrTown" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6NWUwOWFkNGVjNmVhNGFiMGI1YjQ0YWFlYTE3NTY3ODYvdGFibGVyYW5nZTo1ZTA5YWQ0ZWM2ZWE0YWIwYjViNDRhYWVhMTc1Njc4Nl8wLTItMS0xLTE0Mzg1Ng_cb3cc213-292d-438f-bd49-29bca867440a">Framingham,</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:EntityAddressStateOrProvince" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6NWUwOWFkNGVjNmVhNGFiMGI1YjQ0YWFlYTE3NTY3ODYvdGFibGVyYW5nZTo1ZTA5YWQ0ZWM2ZWE0YWIwYjViNDRhYWVhMTc1Njc4Nl8wLTMtMS0xLTE0Mzg1Ng_5c86c706-e9b9-4068-afc2-68fb0945e98a">MA</ix:nonNumeric></span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:EntityAddressPostalZipCode" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6NWUwOWFkNGVjNmVhNGFiMGI1YjQ0YWFlYTE3NTY3ODYvdGFibGVyYW5nZTo1ZTA5YWQ0ZWM2ZWE0YWIwYjViNDRhYWVhMTc1Njc4Nl8wLTUtMS0xLTE0Mzg1Ng_3668ac95-f2ff-43f7-88bb-26e15ce33408">1701</ix:nonNumeric></span></td></tr><tr><td colspan="12" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(Address of Principal Executive Offices)</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(Zip Code)</span></td></tr></table></div><div style="margin-bottom:6pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Registrant&#8217;s telephone number, including area code: </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(<ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:CityAreaCode" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGV4dHJlZ2lvbjpjYTQ0N2IwMTNhOTg0Mzg4ODFkY2VmMzM2NTVlNmNkM18zNTA_d2723ff7-3d13-4b9d-b3c5-1b748730b657">508</ix:nonNumeric>)&#160;<ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:LocalPhoneNumber" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGV4dHJlZ2lvbjpjYTQ0N2IwMTNhOTg0Mzg4ODFkY2VmMzM2NTVlNmNkM182MDk_a23b5deb-82ae-4762-ad16-4db42140d43c">661-2200</ix:nonNumeric></span><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.415%"><tr><td style="width:1.0%"></td><td style="width:18.900%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.900%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.900%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.900%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-bottom:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-bottom:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-bottom:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-bottom:1pt solid #000000;padding:0 1pt"></td></tr></table></div><div style="margin-bottom:12pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(Former Name or Former Address, if Changed Since Last Report)</span></div><div style="margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</span><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:98.391%"><tr><td style="width:0.1%"></td><td style="width:2.771%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.988%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:91.024%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:2.617%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Wingdings',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:WrittenCommunications" format="ixt-sec:boolballotbox" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6OWFmNDI4NGM0MmUyNDVlYWFlODhiMzkzNjkyMzdiZmMvdGFibGVyYW5nZTo5YWY0Mjg0YzQyZTI0NWVhYWU4OGIzOTM2OTIzN2JmY18wLTAtMS0xLTE0Mzg1Ng_05311448-8828-461a-9b3f-ddf3792ed772">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Written communications pursuant to Rule&#160;425 under the Securities Act (17 CFR 230.425)</span></td><td colspan="3" style="padding:0 1pt"></td></tr><tr style="height:6pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Wingdings',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:SolicitingMaterial" format="ixt-sec:boolballotbox" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6OWFmNDI4NGM0MmUyNDVlYWFlODhiMzkzNjkyMzdiZmMvdGFibGVyYW5nZTo5YWY0Mjg0YzQyZTI0NWVhYWU4OGIzOTM2OTIzN2JmY18yLTAtMS0xLTE0Mzg1Ng_797ae24b-7e55-466f-a9e3-7dcbccd098fd">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Soliciting material pursuant to Rule&#160;14a-12 under the Exchange Act (17 CFR 240.14a-12)</span></td><td colspan="3" style="padding:0 1pt"></td></tr><tr style="height:6pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Wingdings',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:PreCommencementTenderOffer" format="ixt-sec:boolballotbox" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6OWFmNDI4NGM0MmUyNDVlYWFlODhiMzkzNjkyMzdiZmMvdGFibGVyYW5nZTo5YWY0Mjg0YzQyZTI0NWVhYWU4OGIzOTM2OTIzN2JmY180LTAtMS0xLTE0Mzg1Ng_934a020e-9a59-4203-8e1f-087221ce72d5">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Pre-commencement communications pursuant to Rule&#160;14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</span></td><td colspan="3" style="padding:0 1pt"></td></tr><tr style="height:6pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Wingdings',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:PreCommencementIssuerTenderOffer" format="ixt-sec:boolballotbox" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6OWFmNDI4NGM0MmUyNDVlYWFlODhiMzkzNjkyMzdiZmMvdGFibGVyYW5nZTo5YWY0Mjg0YzQyZTI0NWVhYWU4OGIzOTM2OTIzN2JmY182LTAtMS0xLTE0Mzg1Ng_6a7600ef-54d7-4e44-9d0e-5084f41241b1">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Pre-commencement communications pursuant to Rule&#160;13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</span></td><td colspan="3" style="padding:0 1pt"></td></tr><tr style="height:6pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1033 (&#167;230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (&#167;240.12b-2 of this chapter).</span></td><td colspan="3" style="padding:0 1pt"></td></tr><tr style="height:6pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Emerging growth company </span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:EntityEmergingGrowthCompany" format="ixt-sec:boolballotbox" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6OWFmNDI4NGM0MmUyNDVlYWFlODhiMzkzNjkyMzdiZmMvdGFibGVyYW5nZTo5YWY0Mjg0YzQyZTI0NWVhYWU4OGIzOTM2OTIzN2JmY18xMC0zLTEtMS0xNDM4NTY_57e58862-9b76-441b-bbc3-f74daf39a2b8">&#9744;</ix:nonNumeric></span></td></tr><tr style="height:6pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">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. </span><span style="color:#000000;font-family:'Wingdings',sans-serif;font-size:10pt;font-weight:400;line-height:100%">o</span></div></td><td colspan="3" style="padding:0 1pt"></td></tr></table></div><div><span><br/></span></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="padding:0 1pt"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:2pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"></td></tr></table></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span><br/></span></div><div><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span><br/></span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span><br/></span></div></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Explanatory Note:</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">  On October 27, 2022, Ameresco, Inc. (the "Company") filed a Form 8-K. The Company is filing this Form 8-K/A solely to correct XBRL coding errors on the cover page of the original Form 8-K filing. No changes have been made in the text of the Form 8-K.</span></div><div><span><br/></span></div><div id="i8ef93eddb81d4398afd2e5abe033c7d3_7"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:112%">Item 2.03. Creation of a Direct Financial Obligation or an Obligation Under an Off-Balance Sheet Arrangement.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">On <ix:nonNumeric contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026" name="dei:DocumentPeriodEndDate" format="ixt:date-monthname-day-year-en" id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM183L2ZyYWc6NTBiNGE5OWY0MDQwNGI3MTlmNjEwYjcyMGM0NGFhMWQvdGV4dHJlZ2lvbjo1MGI0YTk5ZjQwNDA0YjcxOWY2MTBiNzIwYzQ0YWExZF8xMTk_e73c7785-29b5-40af-9ad2-f04f01af15e6">October 26, 2022</ix:nonNumeric>, one of Ameresco, Inc.'s ("Ameresco") subsidiaries ("RNG Holdings"), a holding company for three renewable natural gas project companies (the "Project Companies"), entered into a loan agreement (the "RNG Credit Facility") with HA RNG Lender LLC, an affiliate of Hannon Armstrong Sustainable Infrastructure Capital, Inc. The RNG Credit Facility refinanced and increased the available borrowings under a non-recourse credit facility which RNG Holdings and the Project Companies entered into on October 23, 2020, for a principal amount of up to $50 million which was scheduled to expire March 31, 2026 (the "Prior Facility"). </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">The loan is scheduled to mature on October 26, 2037, provides a principal amount of up to $125 million and bears interest at a rate of 6.5% with a residual percentage of distributable cash flows payable after the maturity date of the loan, until the earlier of the lender achieving an 8.25% &#8220;IRR&#8221; on funds borrowed under the facility, or the facility discharge date on October 26, 2047. The principal and interest payments are due in quarterly installments based on a five (5)-year amortization schedule with the principal payments being adjusted based on the distributable cash flows from the three renewable natural gas projects ("Projects") owned and operated by the Project Companies.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:115%">  </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">No up-front, commitment or structuring fees were payable on the credit facility.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">At the closing, RNG Holdings drew down $80 million under the RNG Credit Facility, approximately $26.5 million of which was used to repay all amounts outstanding under the Prior Facility and the remainder was used to terminate swap obligations, pay transaction costs, make permitted distributions to Ameresco and for the Project Companies' working capital needs. The facility allows two additional draws, subject to certain conditions, up to the remaining principal amount, to be used to make distributions to Ameresco.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">RNG Holdings is the borrower under the RNG Credit Facility. The obligations under the facility are guaranteed by all of RNG Holdings&#8217;s subsidiaries and are secured by RNG Holdings&#8217; and its subsidiaries' assets as well as Ameresco's equity interest in RNG Holdings. Borrowings under the credit facility are otherwise non-recourse to Ameresco.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">All borrowings may be paid before maturity in whole or in part at RNG Holdings&#8217;s option after three years provided that the lender&#8217;s IRR is achieved and against a prepayment of 102% of par for prepayments between October 26, 2025 and October 25, 2027 and 101% of par for prepayments between October 26, 2027 and October 25, 2029.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:115%">  </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">No call premium applies for payments on or after October 26, 2029. The facility is subject to mandatory pre-payment provisions customary for non-recourse project financings of this type. </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">The RNG Credit Facility contains affirmative and negative covenants customary to non-recourse project financings of this type, including covenants restricting the ability of</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:115%">  </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">RNG Holdings's and its subsidiaries' ability, subject to negotiated exceptions, to: create liens or guarantee obligations; incur additional indebtedness; dispose of or lease assets; change their business activity; pay dividends and make other distributions; make investments; merge or liquidate; issue additional equity; engage in transactions with affiliates; and amend material project documents.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:115%">  </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Any failure to comply with the covenants of the credit facility could prevent RNG Holdings from being able to borrow additional funds and would constitute a default. The RNG Credit Facility also includes several other customary events of default, including a change in control of RNG Holdings and a breach of material project agreements, such as off-take agreements, gas supply agreements, leases and easements.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:115%">  </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">If an event of default occurs and is not cured within any applicable grace period or is not waived, the lender would be entitled to take various actions, including accelerating amounts due under the RNG Credit Facility, terminating the credit facility, and enforcing liens against the collateral.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:115%">  </span></div><div><span><br/></span></div><div><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span><br/></span></div></div></div><div id="i8ef93eddb81d4398afd2e5abe033c7d3_10"></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span><br/></span></div></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">SIGNATURE</span></div><div style="margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">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.</span><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.561%"><tr><td style="width:1.0%"></td><td style="width:43.099%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:3.745%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:21.954%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:21.954%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:3.748%"></td><td style="width:0.1%"></td></tr><tr style="height:14pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">AMERESCO, INC.<br/></span></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">October 28, 2022</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">By:</span></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">/s/ Spencer Doran Hole</span></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Spencer Doran Hole</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Executive Vice President, Chief Financial Officer <br/></span></td></tr><tr style="height:14pt"><td colspan="15" style="padding:0 1pt"></td></tr></table></div><div><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span><br/></span></div></div></div></body></html>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>2
<FILENAME>amrc-20221026.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:483160c7-f7ec-462b-bcaf-dfc0ae4061bc,g:330d8cfe-17f3-44e8-8d1b-960e0dec82eb-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:amrc="http://www.ameresco.com/20221026" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.ameresco.com/20221026">
  <xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="http://www.xbrl.org/2003/xlink-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2022" schemaLocation="https://xbrl.sec.gov/dei/2022/dei-2022.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="amrc-20221026_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="amrc-20221026_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="Cover" roleURI="http://www.ameresco.com/role/Cover">
        <link:definition>0000001 - Document - Cover</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
</xs:schema>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>3
<FILENAME>amrc-20221026_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:483160c7-f7ec-462b-bcaf-dfc0ae4061bc,g:330d8cfe-17f3-44e8-8d1b-960e0dec82eb-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel"/>
  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:label id="lab_dei_EntityAddressAddressLine2_32d4aca5-cd14-494f-b78a-57e9cabe538b_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Address Line Two</link:label>
    <link:label id="lab_dei_EntityAddressAddressLine2_label_en-US" xlink:label="lab_dei_EntityAddressAddressLine2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Address Line Two</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressAddressLine2"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine2" xlink:to="lab_dei_EntityAddressAddressLine2" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCentralIndexKey_d200aa6b-86a1-4e53-b562-5db638208e41_terseLabel_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:label id="lab_dei_EntityCentralIndexKey_label_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityCentralIndexKey"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey" xlink:to="lab_dei_EntityCentralIndexKey" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityTaxIdentificationNumber_4cf92ffb-46dd-4c8b-bf9e-eaffc19d40c9_terseLabel_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Tax Identification Number</link:label>
    <link:label id="lab_dei_EntityTaxIdentificationNumber_label_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Tax Identification Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityTaxIdentificationNumber" xlink:to="lab_dei_EntityTaxIdentificationNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressAddressLine1_7087b22d-4a89-497a-ab2d-e72f08dfe5ff_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:label id="lab_dei_EntityAddressAddressLine1_label_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressAddressLine1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine1" xlink:to="lab_dei_EntityAddressAddressLine1" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AmendmentDescription_fefd1f71-6505-4519-84dc-5dfa437a48b8_terseLabel_en-US" xlink:label="lab_dei_AmendmentDescription" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amendment Description</link:label>
    <link:label id="lab_dei_AmendmentDescription_label_en-US" xlink:label="lab_dei_AmendmentDescription" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amendment Description</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentDescription" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_AmendmentDescription"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentDescription" xlink:to="lab_dei_AmendmentDescription" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityFileNumber_d606b376-aaeb-473a-928f-493340dc64ed_terseLabel_en-US" xlink:label="lab_dei_EntityFileNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity File Number</link:label>
    <link:label id="lab_dei_EntityFileNumber_label_en-US" xlink:label="lab_dei_EntityFileNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity File Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityFileNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFileNumber" xlink:to="lab_dei_EntityFileNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_PreCommencementIssuerTenderOffer_a9358467-9bac-458f-b520-341600d5e458_terseLabel_en-US" xlink:label="lab_dei_PreCommencementIssuerTenderOffer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pre-commencement Issuer Tender Offer</link:label>
    <link:label id="lab_dei_PreCommencementIssuerTenderOffer_label_en-US" xlink:label="lab_dei_PreCommencementIssuerTenderOffer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pre-commencement Issuer Tender Offer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_PreCommencementIssuerTenderOffer" xlink:to="lab_dei_PreCommencementIssuerTenderOffer" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_SolicitingMaterial_680040f7-5cb0-4ac6-8422-b1dda6e2428d_terseLabel_en-US" xlink:label="lab_dei_SolicitingMaterial" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Soliciting Material</link:label>
    <link:label id="lab_dei_SolicitingMaterial_label_en-US" xlink:label="lab_dei_SolicitingMaterial" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Soliciting Material</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_SolicitingMaterial"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SolicitingMaterial" xlink:to="lab_dei_SolicitingMaterial" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressCityOrTown_3ce57fa4-1793-48e0-9d54-8345df6d83e0_terseLabel_en-US" xlink:label="lab_dei_EntityAddressCityOrTown" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:label id="lab_dei_EntityAddressCityOrTown_label_en-US" xlink:label="lab_dei_EntityAddressCityOrTown" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressCityOrTown"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCityOrTown" xlink:to="lab_dei_EntityAddressCityOrTown" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_bd031186-7202-4fbf-9162-02e0267be56e_terseLabel_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_label_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityIncorporationStateCountryCode" xlink:to="lab_dei_EntityIncorporationStateCountryCode" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_LocalPhoneNumber_7d62aa51-55a4-4be5-9031-3195bcee96b2_terseLabel_en-US" xlink:label="lab_dei_LocalPhoneNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Local Phone Number</link:label>
    <link:label id="lab_dei_LocalPhoneNumber_label_en-US" xlink:label="lab_dei_LocalPhoneNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Local Phone Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_LocalPhoneNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LocalPhoneNumber" xlink:to="lab_dei_LocalPhoneNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressPostalZipCode_b5170b53-cdeb-47c6-8770-7b6ad68f82d0_terseLabel_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:label id="lab_dei_EntityAddressPostalZipCode_label_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressPostalZipCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressPostalZipCode" xlink:to="lab_dei_EntityAddressPostalZipCode" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_WrittenCommunications_efa5896f-dfcb-4834-9e6f-8c36b5ad4895_terseLabel_en-US" xlink:label="lab_dei_WrittenCommunications" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Written Communications</link:label>
    <link:label id="lab_dei_WrittenCommunications_label_en-US" xlink:label="lab_dei_WrittenCommunications" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Written Communications</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_WrittenCommunications"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_WrittenCommunications" xlink:to="lab_dei_WrittenCommunications" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CityAreaCode_7e1fe034-5779-405c-be11-b4f203ac2b46_terseLabel_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">City Area Code</link:label>
    <link:label id="lab_dei_CityAreaCode_label_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">City Area Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_CityAreaCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CityAreaCode" xlink:to="lab_dei_CityAreaCode" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CoverAbstract_label_en-US" xlink:label="lab_dei_CoverAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cover [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_CoverAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CoverAbstract" xlink:to="lab_dei_CoverAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentType_3729ad90-1bef-45f6-9dc2-662e6a03e371_terseLabel_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Type</link:label>
    <link:label id="lab_dei_DocumentType_label_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Type</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentType"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentType" xlink:to="lab_dei_DocumentType" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AmendmentFlag_ac208abd-591b-4d4a-b256-45c5fe6695f4_terseLabel_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amendment Flag</link:label>
    <link:label id="lab_dei_AmendmentFlag_label_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amendment Flag</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_AmendmentFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag" xlink:to="lab_dei_AmendmentFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityRegistrantName_09327bba-02cb-4f29-880c-001860518c21_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:label id="lab_dei_EntityRegistrantName_label_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityRegistrantName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName" xlink:to="lab_dei_EntityRegistrantName" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_a9b66355-1316-4ca8-b98e-1d9dbea50edc_terseLabel_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_label_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityEmergingGrowthCompany" xlink:to="lab_dei_EntityEmergingGrowthCompany" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressStateOrProvince_7ce4b953-9a99-4fff-a7be-409952c94579_terseLabel_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:label id="lab_dei_EntityAddressStateOrProvince_label_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressStateOrProvince"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressStateOrProvince" xlink:to="lab_dei_EntityAddressStateOrProvince" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentPeriodEndDate_ecfa9983-2711-44d1-a651-912231923796_terseLabel_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Period End Date</link:label>
    <link:label id="lab_dei_DocumentPeriodEndDate_label_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Period End Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentPeriodEndDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate" xlink:to="lab_dei_DocumentPeriodEndDate" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_PreCommencementTenderOffer_bc22e1c0-1506-4f8d-a431-5f85f94d6505_terseLabel_en-US" xlink:label="lab_dei_PreCommencementTenderOffer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pre-commencement Tender Offer</link:label>
    <link:label id="lab_dei_PreCommencementTenderOffer_label_en-US" xlink:label="lab_dei_PreCommencementTenderOffer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pre-commencement Tender Offer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_PreCommencementTenderOffer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_PreCommencementTenderOffer" xlink:to="lab_dei_PreCommencementTenderOffer" xlink:type="arc" order="1"/>
  </link:labelLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>4
<FILENAME>amrc-20221026_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:483160c7-f7ec-462b-bcaf-dfc0ae4061bc,g:330d8cfe-17f3-44e8-8d1b-960e0dec82eb-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.ameresco.com/role/Cover" xlink:type="simple" xlink:href="amrc-20221026.xsd#Cover"/>
  <link:presentationLink xlink:role="http://www.ameresco.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_d3220d97-246e-4da4-8623-05894f93adea" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_DocumentType_d3220d97-246e-4da4-8623-05894f93adea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_b23e5c63-1564-4846-a2a5-057eaac33b30" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_DocumentPeriodEndDate_b23e5c63-1564-4846-a2a5-057eaac33b30" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_4fbe407b-d5bd-4cab-a821-b1db8e44d5d3" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_EntityRegistrantName_4fbe407b-d5bd-4cab-a821-b1db8e44d5d3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_9bca2f0d-7bba-4599-a924-a88e56a8831e" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_EntityIncorporationStateCountryCode_9bca2f0d-7bba-4599-a924-a88e56a8831e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_67966888-28a2-410d-a8d9-8d967609a7ec" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_EntityFileNumber_67966888-28a2-410d-a8d9-8d967609a7ec" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_89a9df6d-8583-426c-8640-ec8fa72b7c83" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_EntityTaxIdentificationNumber_89a9df6d-8583-426c-8640-ec8fa72b7c83" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_b11a6b4b-a618-4d8e-8299-a0e0d595ab18" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_EntityAddressAddressLine1_b11a6b4b-a618-4d8e-8299-a0e0d595ab18" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_3ee392b5-5310-4f32-918e-089a2ce565ec" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_EntityAddressCityOrTown_3ee392b5-5310-4f32-918e-089a2ce565ec" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_b62465ac-9517-408a-a2ed-6c3a29755ef7" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_EntityAddressStateOrProvince_b62465ac-9517-408a-a2ed-6c3a29755ef7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_5c38c254-39b6-4e85-acbe-823cea64d185" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_EntityAddressPostalZipCode_5c38c254-39b6-4e85-acbe-823cea64d185" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_c3e5e96b-478f-4d36-8faf-667260ab44a1" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_CityAreaCode_c3e5e96b-478f-4d36-8faf-667260ab44a1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_a7c9615d-3ba1-4456-bf9c-cbba928f76c5" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_LocalPhoneNumber_a7c9615d-3ba1-4456-bf9c-cbba928f76c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_5436a4c0-ca40-4702-b305-3335319a4339" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_WrittenCommunications_5436a4c0-ca40-4702-b305-3335319a4339" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_a40cf3fe-ae66-4343-bb6a-f66602644e0c" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_SolicitingMaterial_a40cf3fe-ae66-4343-bb6a-f66602644e0c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_db5655c2-7802-44f9-9d1e-3e8768dc3f40" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_PreCommencementTenderOffer_db5655c2-7802-44f9-9d1e-3e8768dc3f40" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_ab3e9c69-bdf8-4705-9173-87eee951e248" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_ab3e9c69-bdf8-4705-9173-87eee951e248" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_2b266471-04d7-4c3a-83de-79ef32f15f82" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_EntityEmergingGrowthCompany_2b266471-04d7-4c3a-83de-79ef32f15f82" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_1e41c82b-c963-433a-98d6-8792b923b5f9" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_AmendmentFlag_1e41c82b-c963-433a-98d6-8792b923b5f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_5dc15605-107c-4063-900d-66e820756e03" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_EntityCentralIndexKey_5dc15605-107c-4063-900d-66e820756e03" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentDescription_dbbbdf38-93da-4290-b366-a2caa8f4756a" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_AmendmentDescription"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_AmendmentDescription_dbbbdf38-93da-4290-b366-a2caa8f4756a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_ae83e959-2cd7-467b-ab02-383a47746486" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressAddressLine2"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a449ba82-a9b9-4326-9049-7207e2a36886" xlink:to="loc_dei_EntityAddressAddressLine2_ae83e959-2cd7-467b-ab02-383a47746486" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>5
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.22.2.2</span><table class="report" border="0" cellspacing="2" id="idm139814686649024">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Cover<br></strong></div></th>
<th class="th"><div>Oct. 26, 2022</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_CoverAbstract', window );"><strong>Cover [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">8-K/A<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Oct. 26,  2022<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">Ameresco, Inc.<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">DE<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">001-34811<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">04-3512838<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">111 Speen Street,<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">Framingham,<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">MA<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">1701<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">508<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">661-2200<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_WrittenCommunications', window );">Written Communications</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_SolicitingMaterial', window );">Soliciting Material</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_PreCommencementTenderOffer', window );">Pre-commencement Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_PreCommencementIssuerTenderOffer', window );">Pre-commencement Issuer Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">true<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0001488139<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_AmendmentDescription', window );">Amendment Description</a></td>
<td class="text">XBRL tagging<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressAddressLine2', window );">Entity Address, Address Line Two</a></td>
<td class="text">Suite 410,<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentDescription">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Description of changes contained within amended document.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_AmendmentDescription</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_AmendmentFlag</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CityAreaCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CityAreaCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CoverAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Cover page.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CoverAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentPeriodEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period.  The format of the date is YYYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentPeriodEndDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentType">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentType</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:submissionTypeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Address Line 1 such as Attn, Building Name, Street Name</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine2">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Address Line 2 such as Street or Suite number</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine2</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressCityOrTown">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressCityOrTown</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressPostalZipCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressPostalZipCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressStateOrProvince">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressStateOrProvince</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:stateOrProvinceItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityEmergingGrowthCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFileNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFileNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fileNumberItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Two-character EDGAR code representing the state or country of incorporation.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationStateCountryCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarStateCountryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:employerIdItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementIssuerTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 13e<br> -Subsection 4c<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementIssuerTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 14d<br> -Subsection 2b<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SolicitingMaterial">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Section 14a<br> -Number 240<br> -Subsection 12<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SolicitingMaterial</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_WrittenCommunications">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Securities Act<br> -Number 230<br> -Section 425<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_WrittenCommunications</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>6
<FILENAME>amrc-20221026_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xml:lang="en-US"
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2022"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="amrc-20221026.xsd" xlink:type="simple"/>
    <context id="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001488139</identifier>
        </entity>
        <period>
            <startDate>2022-10-26</startDate>
            <endDate>2022-10-26</endDate>
        </period>
    </context>
    <dei:AmendmentFlag
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM180L2ZyYWc6MWI1YzQyMzhiMGU3NDg0MmE4ZDUxNTdjYzk0MTZlODMvdGFibGU6NTJlYzQ5NDUzZTUzNDhkNDgzMjUzNTg4ZTAzM2M0NmUvdGFibGVyYW5nZTo1MmVjNDk0NTNlNTM0OGQ0ODMyNTM1ODhlMDMzYzQ2ZV8xLTEtMS0xLTE0Mzg1Ng_c0354ef8-c46a-4173-8616-acd61002ebb2">true</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM180L2ZyYWc6MWI1YzQyMzhiMGU3NDg0MmE4ZDUxNTdjYzk0MTZlODMvdGFibGU6NTJlYzQ5NDUzZTUzNDhkNDgzMjUzNTg4ZTAzM2M0NmUvdGFibGVyYW5nZTo1MmVjNDk0NTNlNTM0OGQ0ODMyNTM1ODhlMDMzYzQ2ZV8yLTEtMS0xLTE0Mzg1Ng_7a1263e8-38a6-429a-a064-986d55e0018f">0001488139</dei:EntityCentralIndexKey>
    <dei:AmendmentDescription
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM180L2ZyYWc6MWI1YzQyMzhiMGU3NDg0MmE4ZDUxNTdjYzk0MTZlODMvdGFibGU6NTJlYzQ5NDUzZTUzNDhkNDgzMjUzNTg4ZTAzM2M0NmUvdGFibGVyYW5nZTo1MmVjNDk0NTNlNTM0OGQ0ODMyNTM1ODhlMDMzYzQ2ZV8zLTEtMS0xLTE0NDAwNg_317c55b7-10f7-4bbd-89f0-85a12d7b5d62">XBRL tagging</dei:AmendmentDescription>
    <dei:DocumentType
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGV4dHJlZ2lvbjpjYTQ0N2IwMTNhOTg0Mzg4ODFkY2VmMzM2NTVlNmNkM182MDY_b53512f1-e044-45a9-9374-0e56ecaff148">8-K/A</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGV4dHJlZ2lvbjpjYTQ0N2IwMTNhOTg0Mzg4ODFkY2VmMzM2NTVlNmNkM18yMjU_e73c7785-29b5-40af-9ad2-f04f01af15e6">2022-10-26</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGV4dHJlZ2lvbjpjYTQ0N2IwMTNhOTg0Mzg4ODFkY2VmMzM2NTVlNmNkM182MDc_b299fbf3-b9a5-4eab-ad96-719ece2c4aa4">Ameresco, Inc.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6Y2ViMDI0MzU1ZGVjNGMzMjhkYzg0YWNkYWQ3ZTQ2MmEvdGFibGVyYW5nZTpjZWIwMjQzNTVkZWM0YzMyOGRjODRhY2RhZDdlNDYyYV8wLTAtMS0xLTE0Mzg1Ng_8016b3c6-0242-4aa4-80fb-ffe76729bc17">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6Y2ViMDI0MzU1ZGVjNGMzMjhkYzg0YWNkYWQ3ZTQ2MmEvdGFibGVyYW5nZTpjZWIwMjQzNTVkZWM0YzMyOGRjODRhY2RhZDdlNDYyYV8wLTItMS0xLTE0Mzg1Ng_fc5411de-3309-4899-8f59-3b20ec694ab1">001-34811</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6Y2ViMDI0MzU1ZGVjNGMzMjhkYzg0YWNkYWQ3ZTQ2MmEvdGFibGVyYW5nZTpjZWIwMjQzNTVkZWM0YzMyOGRjODRhY2RhZDdlNDYyYV8wLTQtMS0xLTE0Mzg1Ng_541d0a46-a4b6-423d-a86f-4d350e80d29e">04-3512838</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6NWUwOWFkNGVjNmVhNGFiMGI1YjQ0YWFlYTE3NTY3ODYvdGFibGVyYW5nZTo1ZTA5YWQ0ZWM2ZWE0YWIwYjViNDRhYWVhMTc1Njc4Nl8wLTAtMS0xLTE0Mzg1Ng_9594ba55-664b-475c-a6d2-69de2942c3c8">111 Speen Street,</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6NWUwOWFkNGVjNmVhNGFiMGI1YjQ0YWFlYTE3NTY3ODYvdGFibGVyYW5nZTo1ZTA5YWQ0ZWM2ZWE0YWIwYjViNDRhYWVhMTc1Njc4Nl8wLTEtMS0xLTE0Mzg1Ng_79cb6d35-b5a3-4067-8dd8-ccb0a8539438">Suite 410,</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6NWUwOWFkNGVjNmVhNGFiMGI1YjQ0YWFlYTE3NTY3ODYvdGFibGVyYW5nZTo1ZTA5YWQ0ZWM2ZWE0YWIwYjViNDRhYWVhMTc1Njc4Nl8wLTItMS0xLTE0Mzg1Ng_cb3cc213-292d-438f-bd49-29bca867440a">Framingham,</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6NWUwOWFkNGVjNmVhNGFiMGI1YjQ0YWFlYTE3NTY3ODYvdGFibGVyYW5nZTo1ZTA5YWQ0ZWM2ZWE0YWIwYjViNDRhYWVhMTc1Njc4Nl8wLTMtMS0xLTE0Mzg1Ng_5c86c706-e9b9-4068-afc2-68fb0945e98a">MA</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6NWUwOWFkNGVjNmVhNGFiMGI1YjQ0YWFlYTE3NTY3ODYvdGFibGVyYW5nZTo1ZTA5YWQ0ZWM2ZWE0YWIwYjViNDRhYWVhMTc1Njc4Nl8wLTUtMS0xLTE0Mzg1Ng_3668ac95-f2ff-43f7-88bb-26e15ce33408">1701</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGV4dHJlZ2lvbjpjYTQ0N2IwMTNhOTg0Mzg4ODFkY2VmMzM2NTVlNmNkM18zNTA_d2723ff7-3d13-4b9d-b3c5-1b748730b657">508</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGV4dHJlZ2lvbjpjYTQ0N2IwMTNhOTg0Mzg4ODFkY2VmMzM2NTVlNmNkM182MDk_a23b5deb-82ae-4762-ad16-4db42140d43c">661-2200</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6OWFmNDI4NGM0MmUyNDVlYWFlODhiMzkzNjkyMzdiZmMvdGFibGVyYW5nZTo5YWY0Mjg0YzQyZTI0NWVhYWU4OGIzOTM2OTIzN2JmY18wLTAtMS0xLTE0Mzg1Ng_05311448-8828-461a-9b3f-ddf3792ed772">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6OWFmNDI4NGM0MmUyNDVlYWFlODhiMzkzNjkyMzdiZmMvdGFibGVyYW5nZTo5YWY0Mjg0YzQyZTI0NWVhYWU4OGIzOTM2OTIzN2JmY18yLTAtMS0xLTE0Mzg1Ng_797ae24b-7e55-466f-a9e3-7dcbccd098fd">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6OWFmNDI4NGM0MmUyNDVlYWFlODhiMzkzNjkyMzdiZmMvdGFibGVyYW5nZTo5YWY0Mjg0YzQyZTI0NWVhYWU4OGIzOTM2OTIzN2JmY180LTAtMS0xLTE0Mzg1Ng_934a020e-9a59-4203-8e1f-087221ce72d5">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6OWFmNDI4NGM0MmUyNDVlYWFlODhiMzkzNjkyMzdiZmMvdGFibGVyYW5nZTo5YWY0Mjg0YzQyZTI0NWVhYWU4OGIzOTM2OTIzN2JmY182LTAtMS0xLTE0Mzg1Ng_6a7600ef-54d7-4e44-9d0e-5084f41241b1">false</dei:PreCommencementIssuerTenderOffer>
    <dei:EntityEmergingGrowthCompany
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM18xL2ZyYWc6Y2E0NDdiMDEzYTk4NDM4ODgxZGNlZjMzNjU1ZTZjZDMvdGFibGU6OWFmNDI4NGM0MmUyNDVlYWFlODhiMzkzNjkyMzdiZmMvdGFibGVyYW5nZTo5YWY0Mjg0YzQyZTI0NWVhYWU4OGIzOTM2OTIzN2JmY18xMC0zLTEtMS0xNDM4NTY_57e58862-9b76-441b-bbc3-f74daf39a2b8">false</dei:EntityEmergingGrowthCompany>
    <dei:DocumentPeriodEndDate
      contextRef="i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026"
      id="id3VybDovL2RvY3MudjEvZG9jOjhlZjkzZWRkYjgxZDQzOThhZmQyZTVhYmUwMzNjN2QzL3NlYzo4ZWY5M2VkZGI4MWQ0Mzk4YWZkMmU1YWJlMDMzYzdkM183L2ZyYWc6NTBiNGE5OWY0MDQwNGI3MTlmNjEwYjcyMGM0NGFhMWQvdGV4dHJlZ2lvbjo1MGI0YTk5ZjQwNDA0YjcxOWY2MTBiNzIwYzQ0YWExZF8xMTk_e73c7785-29b5-40af-9ad2-f04f01af15e6">2022-10-26</dei:DocumentPeriodEndDate>
</xbrl>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>7
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 Financial_Report.xlsx
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M=]W3CHG&K=!X#;[Q3X?#KHG&J]!TZVDF)_VN:Z3I%FA"1N/K>A(5M>5 TR
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M!Z.:60F]A%9JGZJ'-#ZH'C(*!?&Y'C[E>G@*-Y;&O%"N@GL!_]':-\*K^(+
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MU4#E/]O4#6CV#30<D05>,9FV-J/D3@H\W/[O#;#"Q([A[8N_ 5!+ P04
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M"H[<8R6,<6*T_C6"R0_L?@!02P,$%     @ KH9<5:K$(A8S 0  (@(   \
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M4$L! A0#%     @ KH9<58U_,%/O    *P(  !$              ( !KP
M &1O8U!R;W!S+V-O<F4N>&UL4$L! A0#%     @ KH9<59E<G",0!@  G"<
M !,              ( !S0$  'AL+W1H96UE+W1H96UE,2YX;6Q02P$"% ,4
M    " "NAEQ5/0K]M@<$  #=#P  &               @($."   >&PO=V]R
M:W-H965T<R]S:&5E=#$N>&UL4$L! A0#%     @ KH9<59^@&_"Q @  X@P
M  T              ( !2PP  'AL+W-T>6QE<RYX;6Q02P$"% ,4    " "N
MAEQ5EXJ[',     3 @  "P              @ $G#P  7W)E;',O+G)E;'-0
M2P$"% ,4    " "NAEQ5JL0B%C,!   B @  #P              @ $0$
M>&PO=V]R:V)O;VLN>&UL4$L! A0#%     @ KH9<520>FZ*M    ^ $  !H
M             ( !<!$  'AL+U]R96QS+W=O<FMB;V]K+GAM;"YR96QS4$L!
M A0#%     @ KH9<5660>9(9 0  SP,  !,              ( !51(  %M#
G;VYT96YT7U1Y<&5S72YX;6Q02P4&      D "0 ^ @  GQ,

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>8
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
// Edgar(tm) Renderer was created by staff of the U.S. Securities and Exchange Commission.  Data and content created by government employees within the scope of their employment are not subject to domestic copyright protection. 17 U.S.C. 105.
var Show={};Show.LastAR=null,Show.showAR=function(a,r,w){if(Show.LastAR)Show.hideAR();var e=a;while(e&&e.nodeName!='TABLE')e=e.nextSibling;if(!e||e.nodeName!='TABLE'){var ref=((window)?w.document:document).getElementById(r);if(ref){e=ref.cloneNode(!0);
e.removeAttribute('id');a.parentNode.appendChild(e)}}
if(e)e.style.display='block';Show.LastAR=e};Show.hideAR=function(){Show.LastAR.style.display='none'};Show.toggleNext=function(a){var e=a;while(e.nodeName!='DIV')e=e.nextSibling;if(!e.style){}else if(!e.style.display){}else{var d,p_;if(e.style.display=='none'){d='block';p='-'}else{d='none';p='+'}
e.style.display=d;if(a.textContent){a.textContent=p+a.textContent.substring(1)}else{a.innerText=p+a.innerText.substring(1)}}}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>9
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
/* Updated 2009-11-04 */
/* v2.2.0.24 */

/* DefRef Styles */
..report table.authRefData{
	background-color: #def;
	border: 2px solid #2F4497;
	font-size: 1em;
	position: absolute;
}

..report table.authRefData a {
	display: block;
	font-weight: bold;
}

..report table.authRefData p {
	margin-top: 0px;
}

..report table.authRefData .hide {
	background-color: #2F4497;
	padding: 1px 3px 0px 0px;
	text-align: right;
}

..report table.authRefData .hide a:hover {
	background-color: #2F4497;
}

..report table.authRefData .body {
	height: 150px;
	overflow: auto;
	width: 400px;
}

..report table.authRefData table{
	font-size: 1em;
}

/* Report Styles */
..pl a, .pl a:visited {
	color: black;
	text-decoration: none;
}

/* table */
..report {
	background-color: white;
	border: 2px solid #acf;
	clear: both;
	color: black;
	font: normal 8pt Helvetica, Arial, san-serif;
	margin-bottom: 2em;
}

..report hr {
	border: 1px solid #acf;
}

/* Top labels */
..report th {
	background-color: #acf;
	color: black;
	font-weight: bold;
	text-align: center;
}

..report th.void	{
	background-color: transparent;
	color: #000000;
	font: bold 10pt Helvetica, Arial, san-serif;
	text-align: left;
}

..report .pl {
	text-align: left;
	vertical-align: top;
	white-space: normal;
	width: 200px;
	white-space: normal; /* word-wrap: break-word; */
}

..report td.pl a.a {
	cursor: pointer;
	display: block;
	width: 200px;
	overflow: hidden;
}

..report td.pl div.a {
	width: 200px;
}

..report td.pl a:hover {
	background-color: #ffc;
}

/* Header rows... */
..report tr.rh {
	background-color: #acf;
	color: black;
	font-weight: bold;
}

/* Calendars... */
..report .rc {
	background-color: #f0f0f0;
}

/* Even rows... */
..report .re, .report .reu {
	background-color: #def;
}

..report .reu td {
	border-bottom: 1px solid black;
}

/* Odd rows... */
..report .ro, .report .rou {
	background-color: white;
}

..report .rou td {
	border-bottom: 1px solid black;
}

..report .rou table td, .report .reu table td {
	border-bottom: 0px solid black;
}

/* styles for footnote marker */
..report .fn {
	white-space: nowrap;
}

/* styles for numeric types */
..report .num, .report .nump {
	text-align: right;
	white-space: nowrap;
}

..report .nump {
	padding-left: 2em;
}

..report .nump {
	padding: 0px 0.4em 0px 2em;
}

/* styles for text types */
..report .text {
	text-align: left;
	white-space: normal;
}

..report .text .big {
	margin-bottom: 1em;
	width: 17em;
}

..report .text .more {
	display: none;
}

..report .text .note {
	font-style: italic;
	font-weight: bold;
}

..report .text .small {
	width: 10em;
}

..report sup {
	font-style: italic;
}

..report .outerFootnotes {
	font-size: 1em;
}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>10
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.22.2.2</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>1</ContextCount>
  <ElementCount>21</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>0</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>0</UnitCount>
  <MyReports>
    <Report instance="amrc-20221026.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0000001 - Document - Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ameresco.com/role/Cover</Role>
      <ShortName>Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="8-K/A" original="amrc-20221026.htm">amrc-20221026.htm</File>
    <File>amrc-20221026.xsd</File>
    <File>amrc-20221026_lab.xml</File>
    <File>amrc-20221026_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="22">http://xbrl.sec.gov/dei/2022</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>false</HasCalculationLinkbase>
</FilingSummary>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>12
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
{
 "instance": {
  "amrc-20221026.htm": {
   "axisCustom": 0,
   "axisStandard": 0,
   "contextCount": 1,
   "dts": {
    "inline": {
     "local": [
      "amrc-20221026.htm"
     ]
    },
    "labelLink": {
     "local": [
      "amrc-20221026_lab.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "amrc-20221026_pre.xml"
     ]
    },
    "schema": {
     "local": [
      "amrc-20221026.xsd"
     ],
     "remote": [
      "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xl-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xlink-2003-12-31.xsd",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd",
      "https://www.xbrl.org/dtr/type/2020-01-21/types.xsd",
      "https://xbrl.sec.gov/dei/2022/dei-2022.xsd"
     ]
    }
   },
   "elementCount": 22,
   "entityCount": 1,
   "hidden": {
    "http://xbrl.sec.gov/dei/2022": 3,
    "total": 3
   },
   "keyCustom": 0,
   "keyStandard": 21,
   "memberCustom": 0,
   "memberStandard": 0,
   "nsprefix": "amrc",
   "nsuri": "http://www.ameresco.com/20221026",
   "report": {
    "R1": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "amrc-20221026.htm",
      "contextRef": "i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "document",
     "isDefault": "true",
     "longName": "0000001 - Document - Cover",
     "role": "http://www.ameresco.com/role/Cover",
     "shortName": "Cover",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "amrc-20221026.htm",
      "contextRef": "i79096999ce2245e29d924e2f16bd1f43_D20221026-20221026",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    }
   },
   "segmentCount": 0,
   "tag": {
    "dei_AmendmentDescription": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Description of changes contained within amended document.",
        "label": "Amendment Description",
        "terseLabel": "Amendment Description"
       }
      }
     },
     "localname": "AmendmentDescription",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "stringItemType"
    },
    "dei_AmendmentFlag": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.",
        "label": "Amendment Flag",
        "terseLabel": "Amendment Flag"
       }
      }
     },
     "localname": "AmendmentFlag",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_CityAreaCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Area code of city",
        "label": "City Area Code",
        "terseLabel": "City Area Code"
       }
      }
     },
     "localname": "CityAreaCode",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_CoverAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cover page.",
        "label": "Cover [Abstract]"
       }
      }
     },
     "localname": "CoverAbstract",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "xbrltype": "stringItemType"
    },
    "dei_DocumentPeriodEndDate": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period.  The format of the date is YYYY-MM-DD.",
        "label": "Document Period End Date",
        "terseLabel": "Document Period End Date"
       }
      }
     },
     "localname": "DocumentPeriodEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "dateItemType"
    },
    "dei_DocumentType": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.",
        "label": "Document Type",
        "terseLabel": "Document Type"
       }
      }
     },
     "localname": "DocumentType",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "submissionTypeItemType"
    },
    "dei_EntityAddressAddressLine1": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Address Line 1 such as Attn, Building Name, Street Name",
        "label": "Entity Address, Address Line One",
        "terseLabel": "Entity Address, Address Line One"
       }
      }
     },
     "localname": "EntityAddressAddressLine1",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressAddressLine2": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Address Line 2 such as Street or Suite number",
        "label": "Entity Address, Address Line Two",
        "terseLabel": "Entity Address, Address Line Two"
       }
      }
     },
     "localname": "EntityAddressAddressLine2",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressCityOrTown": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of the City or Town",
        "label": "Entity Address, City or Town",
        "terseLabel": "Entity Address, City or Town"
       }
      }
     },
     "localname": "EntityAddressCityOrTown",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressPostalZipCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Code for the postal or zip code",
        "label": "Entity Address, Postal Zip Code",
        "terseLabel": "Entity Address, Postal Zip Code"
       }
      }
     },
     "localname": "EntityAddressPostalZipCode",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressStateOrProvince": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of the state or province.",
        "label": "Entity Address, State or Province",
        "terseLabel": "Entity Address, State or Province"
       }
      }
     },
     "localname": "EntityAddressStateOrProvince",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "stateOrProvinceItemType"
    },
    "dei_EntityCentralIndexKey": {
     "auth_ref": [
      "r0"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.",
        "label": "Entity Central Index Key",
        "terseLabel": "Entity Central Index Key"
       }
      }
     },
     "localname": "EntityCentralIndexKey",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "centralIndexKeyItemType"
    },
    "dei_EntityEmergingGrowthCompany": {
     "auth_ref": [
      "r0"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate if registrant meets the emerging growth company criteria.",
        "label": "Entity Emerging Growth Company",
        "terseLabel": "Entity Emerging Growth Company"
       }
      }
     },
     "localname": "EntityEmergingGrowthCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityFileNumber": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.",
        "label": "Entity File Number",
        "terseLabel": "Entity File Number"
       }
      }
     },
     "localname": "EntityFileNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "fileNumberItemType"
    },
    "dei_EntityIncorporationStateCountryCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Two-character EDGAR code representing the state or country of incorporation.",
        "label": "Entity Incorporation, State or Country Code",
        "terseLabel": "Entity Incorporation, State or Country Code"
       }
      }
     },
     "localname": "EntityIncorporationStateCountryCode",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "edgarStateCountryItemType"
    },
    "dei_EntityRegistrantName": {
     "auth_ref": [
      "r0"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.",
        "label": "Entity Registrant Name",
        "terseLabel": "Entity Registrant Name"
       }
      }
     },
     "localname": "EntityRegistrantName",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityTaxIdentificationNumber": {
     "auth_ref": [
      "r0"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.",
        "label": "Entity Tax Identification Number",
        "terseLabel": "Entity Tax Identification Number"
       }
      }
     },
     "localname": "EntityTaxIdentificationNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "employerIdItemType"
    },
    "dei_LocalPhoneNumber": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Local phone number for entity.",
        "label": "Local Phone Number",
        "terseLabel": "Local Phone Number"
       }
      }
     },
     "localname": "LocalPhoneNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_PreCommencementIssuerTenderOffer": {
     "auth_ref": [
      "r1"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.",
        "label": "Pre-commencement Issuer Tender Offer",
        "terseLabel": "Pre-commencement Issuer Tender Offer"
       }
      }
     },
     "localname": "PreCommencementIssuerTenderOffer",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_PreCommencementTenderOffer": {
     "auth_ref": [
      "r2"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.",
        "label": "Pre-commencement Tender Offer",
        "terseLabel": "Pre-commencement Tender Offer"
       }
      }
     },
     "localname": "PreCommencementTenderOffer",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_SolicitingMaterial": {
     "auth_ref": [
      "r3"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.",
        "label": "Soliciting Material",
        "terseLabel": "Soliciting Material"
       }
      }
     },
     "localname": "SolicitingMaterial",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_WrittenCommunications": {
     "auth_ref": [
      "r4"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.",
        "label": "Written Communications",
        "terseLabel": "Written Communications"
       }
      }
     },
     "localname": "WrittenCommunications",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.ameresco.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    }
   },
   "unitCount": 0
  }
 },
 "std_ref": {
  "r0": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r1": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "13e",
   "Subsection": "4c"
  },
  "r2": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "14d",
   "Subsection": "2b"
  },
  "r3": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "14a",
   "Subsection": "12"
  },
  "r4": {
   "Name": "Securities Act",
   "Number": "230",
   "Publisher": "SEC",
   "Section": "425"
  }
 },
 "version": "2.1"
}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>13
<FILENAME>0001488139-22-000102-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 0001488139-22-000102-xbrl.zip
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M[YZ!73\_O (;?M$]:RJ=J^:L=7!TWJH=]3O:4;];XY%;Z\PZI_;D<WOOYG2
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M(RL<+[XR3?=,+CQJ:TQ0HV)IE''5H@;W#$TU%&[H?FG7LE2J:8IRE]-Z\86
MAFH^*OU]_[UH&[+/1_;I-^@] !IL2-U_O^)/M5'CCM7+G^($C%&Q?#DAQ=<"
M=0+4"'#9\K G.#G&F)U\9FE6;.MX_[V=*;CATY*#]!I=V^\+_P+W!!$V&B7Q
M* EQU8$73XDGHGB"7<.'V&-BTS])$$8(J<(4\%4FAARZG,4D#0?C*&-#$8_3
M:$92EH5I,)-O%B_$'K"1S9<MX(/D>@WX&.@DA UG\V<!F/-X@N_ADM,0I\K3
MZBLY KNL.^I=CN#;DW659UACK90=VWYRP^K 0^U^:ZP?0E8K6VKEF2<6GR)1
M> :TD7[Z8V'6,\+(LR3,0-]PZ<AX6"PS2&\OT_;B./(8*$\&*OPFH6:>7FF=
M?1JXM8;A'C05H#US:Z<1IE5:M7X(=<([%[/F%0^[@^;-](K9.>LHS?.>@D>(
M=-L-Q3V#OIR=&*V#!O2OJ;7:C2M7^V/04==.-RJFKJJ&85/;UFQJ6"JCCJ<'
ME/- KSB:X)6*ABM;G(IA[/QE<M[/MW[GI^M4H4K0C65=(J.E_;-'XTCD?3<T
MLW!/Z)>6-J'BWM-W:H7L?SHBFJZ4H>"C\TOKL:KUT#,I7KWHQHA_VX@? T;V
M07R&O2:@+(!:T<:"_Z %GZVQX!6GPH1F>+0B3!,LN!50Y@B=5KCO^3Y7'#O@
M&PO^ACMUK4=D4"C2'>9;-1A5M24+OG)VP,)^&P!%9<F-"=^8\&^:\"^)0 R.
MYZ3)DV P!$Y:08")W8TI_R%3KJQ;^Z<;3-$401UF.M30%)W:0@VH8E> -[ZH
M:-S<F/(WW"G0)^HO*=3]4+EJ<*J]\][?S[#G93>F?6/:'V+:&VDZ%LG&P#^=
M@=?6&'B+52Q%$0$U#5ZAAC ,ZG"P]Z9B&X&A:H:*&W(W!O[-=NJ1!EX7U'CG
MW\_ %V4W!OY^!OYY6O(69+$QY"AW@G@SXLN)KP%++LBD+^06VQNS4F%*H(D@
MM#AGU".]))YD?13?$<Y4L91P$4 5\M0BE%QB*.9\ NM&HA /J5-TG;Q#Z:[L
MR'SAO#!4 X(]PC./<&Y14E(UCVIK:*T[^6Y!%%7A^KTELN6-8FP4XYN*4;]#
MR/]BONC9%SG/Q_% #N-^/HH;W/B#N'':W%<6!^]CN]QVYZM9$:9M6QIUO(I%
M#<")U/-\G085@[- =YCFV?<#CALK]PI6;G%0^8MC@. ;7AU7#:^%".&M-2M]
M   B$CY>436,)7P=IT*6@B$H5L;@94>A7/22WQ& ED#6%<VP<GFU%=K9(?0-
MGB3B,DSA/8 5;.AC5IOY/I[*AH7Q B/.$I[F:V*0_NCVD;]$U=^Q^3F_*WBA
M_-#%ST\4L<<W[AUXC%0_W2'W;^4XR;=WH\'M2PN6;C1XDA6"=RT'?.1=!V_Y
MM7O1O'$WR"C.;5$U$1'#?3&W;@NY9JSDJ'+]"O. >^/L[E<>TO[E__>3:Z'L
M">HE@EU0%@"!*HLF;):6MI_ASI-G<SV28C7,8"3\>ZR^K$_!S Q9%B<SXL:9
MJ+[,_I3UC2&D-22+ ZLK^8'56V3UY&'R#OU*:0YMW^/Z3O!$;+%"M$S:4*!X
MCC%TL0!41J3S0MM[: U$-$//Y<=) LZ+R!N2_%ANV1%)$B<I 7^&U?DQ6%J"
M C)W;'$2@BT&!WEC86H9AI'D/B\%%WT)?AR/A!@P+C!,QU?E)4;QZK+6\@,5
M['Z7]E1*+R%R=^TY4O%$ET8F!D0K*WHYOT^S6'_+2"V48_YI@31:2PMT<2WN
M\@\GQ?I<W$A'?V,1WJ1(COM"9&0O27"P,;/WP$%\<2&7VSE Q#>'Z*\+!/5Y
M(.BV?PO=@[K9P@"M=CAQ#QIZLQT-W//ZI'/NSYH0[+D'G_I [\;.H%AM'C04
M"![-[CF\5]M3H/P4Z&A-I'G5F$"PIW3.ZM/N)PCJVA=/=(C^%L%]?R#6JZ;J
MUY2\*\U_ DN5CKTTY"%+,)/VKG3D'I#?XT@BW-+[+=")?OYMD?U L)[U$X&X
M'Q"Z1(Y@K,<)J$N/21Q^CDJ4EY=4I7'\4OR^/_\=R4NG*).%8/(8B6*0?=8#
MXC(IGK^(30(UY2$H)O/!H&5H8664\/L>P:>?Y704^?QY?POUD05H]HIK(WYG
M0Q@4T,@!A"@Q].-X##$#*#BVNS$,$@:_CWUH/]AG-D(G5=ATM-AKZH9NYY$(
M&O@A-MT'&X(!BMPO<,G"2-(&G)?(U?KI?"4_1$1#"@8FA@ %S'=.-IB3G?1#
MOT^6QU^21Z*WAFYUW.(E!Z5+85"V))L8,&.^[Y<-,&3"$1F/T+_\TU0(6)((
M+5E>]028AY?-\7&4[U\0TQ'80])D"3S554G96G SQ"T?"WY<QU$_LYU#EDH9
M"V]T=<"D "R/I%0K'1Q^$5BFWQY.53,7XXE\\\!\Y=M!$KRTA,%_)"EDTBJ;
M_RK"7) F4+\Q+M42"6+$PIUSC*A#;YQ'9CY+^R2(X@FH%YO)GR0:E-(AVXX2
MQ OR6='++8)!<I1'W_+VE&3Q.-<8YO=#B*YQ-_"0V&4-FH5[AS5EIW%T)#^I
M.S@H 4AP6D@T#-CU]--<>K=(O/H#=@ 01P*]R9MU<V2-2JYA2T,JE:D8+^@F
MFH 4MRD3/I8XY7]C>0D"X"-Y<7$4Y24\J7PX[ !W -N\,]]+YX$\@DCT*O?6
M<W;GXYZMU+RHS!-R+/@YV B@N:",Q>_DB+Q_6V*H[UM%-+&%-H/](_%D6%B1
M&-@O+_;V9NM5OOP\(/CF-4/K]8:\T!;Q];4#>!V/* SS,-N2$Z5A)MU#C%%2
M;KN1;8& *B<@/@L=F0/E54O[)A#97I8W/8)8<]C;6O4+/(%*. @/^:=];<6O
MM7*-U]K*=[)-0UP:"AKT3PV,T.)5L K7/F"<YC8Q$3".!-2L,'80>(PSF6_#
MT;ZN;=45+)Q6(@;@9K'0,E'07PA6T2*D$S9:V@"7;B';\N0@RY-V?IQF\/.
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M]P8+JOEL6QS>0HBX[<5\!G_ZV2#:_7]02P,$%     @ KH9<58]FT2EE @
M;@<  !$   !A;7)C+3(P,C(Q,#(V+GAS9,U5R6[;,!"]^RM8GDNMAF,+L0,T
M08 ";@MD07(K*')D$Y%(E:1BY^\KTA(<.7$; SU4%U$S[\T^U/G%MBK1,V@C
ME)SC.(@P LD4%W(UQ_=WUV2*+Q:CT?DG0AZ_W"S1E6)-!=*B2PW4 D<;8=?H
M@8-Y0H56%7I0^DD\4T(6GG2IZA<M5FN+DBA)#K4Z&T_3>!*Q,U*< 2/C29*3
MG-&"\()%%,;1),[9YU66IA&?L@)(?%:D9#R&*9GR.">S2001!S9-(/=&MR8S
M; T516UBTF1;,\=K:^LL##>;3;!) Z5781)%<?CX;7GKH;C#ED(^#=#;7)<]
M/@V=.J<&>CBM-!O :04:#%,!4U7HTHVC9((1M5:+O+%PK71U!05M2CO'C?S5
MT%(4 GA;\A)<40> 5VI+]0KL]]:^J2F##SA=C!!RM1!5K;1%\EUJ5XQX-IN%
M6Y<=1KO:+16CU@_$T6)X/'%'$B<DC8.MX3C\D-NA(2&-I9+!*;[;+]+S_D4,
M^\Z>%D//.ST&;\P "U;J.>0@?.?>=V^.P=V!N,/0)Y526<]WDDY6UT(6:B=H
M12[PK(_^!HI^6=YLP#LCXE\9U4RK\B_S%-9:U:"M /-Z>[R!M89BCMT.D7YJ
M?Y8T#]I(>L@;!\,6.'784J!<[C/IN?:E;KFF;4 )N]K\SXG7&DY-O*68]LKP
MC3XQ?\>_:_5(\#F^5.WMCY&3W=]\/7ZU>*<[<&^MM\>A$%+XB8O\$R.R_U$0
MY%GGX2'VP$IC@/^0"W\^3*XC=Y _$!DM65.>SMN'=936"?OB=<L5#K=K]_UJ
M [U@M]:+T6]02P,$%     @ KH9<5729A'C>"0  ^UD  !4   !A;7)C+3(P
M,C(Q,#(V7VQA8BYX;6S57%UOVS@6?>^OT'I?RYJD/AFT&733=E%,IBV:%!WL
M8&#PTQ%J2X&L-,F_7TJV$]F6;)&R5<U+(MM7E^<>\UQ>78E^_=O#?.;\E-DB
M3I,W(_0*CAR9\%3$R?3-Z-OU!Q"-?CM_\>+UOP#X\S]?+YUW*;^;RR1W+C))
M<RF<^SB_<;X+N?CAJ"R=.]_3[$?\DP)P7IYTD=X^9O'T)G<PQ'C[T^S,BUP4
M0!X"%4H.O  SP#A50"@.J?1@@!A_.3US72@BKB1 H7*!Y\D(1 (Q0 (HH9 \
MPI*53F=Q\N.L^,/H0CHZN&11OGPSNLGSV[/Q^/[^_M4#RV:OTFPZQA"ZX[7U
M:&7^L&-_[Y;6B! R+C]],EW$=8;:+1K_^<?E%;^1<PKB9)'3A!<#+.*S1?GF
M9<II7G)^$)?3:%&\ FLS4+P%$ 8N>O6P$*/S%XZSI"-+9_*K5$[Q_]O7CXU#
MDG%A,4[DM/AFO\@L3L553K/\DC(YT^A+;_GCK7PS6L3SVYE<OW>3257O=I9E
M&UX+E*1 B8("Y;^;!AMW@'\DO/DNUB. *\/]="R,^SC]=#2XUSH_R-,#K@S3
M&?)R0KU/1%]S]VFHSM!/C_A8TR+-Z:R':?$\3 7RK'CC4A^MABD<[4FFY3BK
MU%V!*A]RF0BYS)8;KIU8O!GIHXF0\>1]DL?YXULA,KE8K/[IL26>N%AXE%,?
M<($\X!%/ 19&%/BA)%S[\=V(3?*GB3V1"?AVM<90#M1BE)%!C'F#5K6S]"[C
MSZO<?%:W=.E5JUCGHG%"YW)Q2U<G:*A%0;!$?[X$ZJP@OEP?. 58Y_H^?3U^
M#L^6V%D_=,T&RE3*-S#-BG(AS;:92'D[)IXUN-!!E#0L)'\U37^.]?GCHC0K
M#D!Q4$IOO]?QSI?Z-EOCI1D_P/O*8LQ371/=YF#C*RAJ2(/ \M1@/BRIU,./
MG#03,M/U;DTH-?/S0A>\&9U]U)GBX7?Y.!$Z#DH#!J* (N!ID0/F!QCX@@5N
MA&$D/60F^JT1!BKX%4JGA.EHG*9"WR:RK<@[T-./P-LS8R'LAN@[B'K;8\^"
M;@AH5\Q-AK9"OJ8/'X7V&:MX>?GUZ6[.9#;QN")8*:8O0(4 'H_T5:@B$DBJ
M%$=$>) 3,T$WC#1086NTSB9<9XG75.!-!+<5^A%HZT?PYHQ9"/\ &QT20)/G
MGA/!@0!W$\*A$VP3PV[5@"8AC$*&L<X'-"*ZM \IH$R_E"%6,!)*^DIU+>W1
M0!-"?<'Z.9'=2WO4H;0WHNM7EO;[F#I*:8^.D 3JO/[RTAXUBW^?L;GPW\[U
ME7_1RGXG%SR+;XML,E%2":1"! (?^L#S$0&1)[BN[!7UW)!Z$8O::KYN@*')
M_0FC4P'97N.U'!Z6=U=F3JQL,U*,Y+PO<BLEUSKL3<3[PJGJ=Z^=[9K](9[)
M57DI A@P-PP I5(7\:%+ <&1THNVZWI0\,"3PFRI?G8^-,FNUIT"H&617B&N
M[5)L1T<_*W ;)BS6W-V0.RRU%6<]K["[8>PNK#4VYJ+\DLF+=*Y%SF6A](^+
MQ9W,KHON>O99*3W7*'']R M"0!CE>FW5^F0^AL#U4 "A\*5^JZU(#PTV--%J
MO(!7 #M+Q,X2LE-B;B_C@U0?EO4Q"3RQS#MQ9R3\MJ18)8*#SGM+#&W#K":*
MUN>8)XZK=!;S.(^3Z1]4:S&FLTD00>A!%0*?,ZBOOWF@RW", 4-"T$!B#T>M
MU_-=]T-+#L\(G37$]KF@AKW#ZN_&R8GU;D*'D;R;H[82=(V[WB3<'$I5M'NL
M.C;*+O3AY^PZO4\F+I=^J*^. 0J)"[Q(0D"$[X'(]?15<R B5T*K-MGS&$,3
M[';KIT"J>70*K)8-L@JAANTQ.YIZ;HZU8LB^,;;+0?>V6,7GKVF*[0;5V!*K
M,;45^,>$I]EMFI7=]:M<YXV+]"[)L\>+5,@)$]!%* I J(D#GF(*$!1@ +&$
M. B9] -I)O:]XPU4^!N87SHEZF)VKY [!733/+"?][8YX6AL]I,?.A%ID2Y:
MT=,A=>SWWW,::17L;DII=YIY>BF>>)Y]N4F3=>\I% &FU$? ]W7UX.G< 8C.
M+L!%Q&=<2A(PW#:7;#L?6N(H\3DE0..FW0YQAY-!%SI.K'P#)HP$WA2RE9IW
MG/4FW:8PJCIMM.E8U'])%SF=_2^^72[U/@HA\UW 1=E3+Z[!PQ""D 54!)&*
ML+"KZS>&&9I0MPO7)5A'H[5:U6N9-2SPK?GJN<9O2Y5]F5_+1/=*?]/MKRGV
M:T-KK/?KK<WE_SV+\UPF16?O+ED]4;.82$7]B 3E)BRM?'TA#XC4+R/N!LRG
MPHN(WU;YM2,,3?0KD,XFRO9:KZ?QL,P[DW-BA1OR8B3LO;%;:;K>8V]RWAM0
M5<G[#<U%7%S\O\TD+=>64"(EH5:L'X8$>-#G@$F$ /,4AB[EF'E!6^U6'0]-
MLF5#J0!GN"QOD'58H;84G%B8+:,W$F1=J%8ZW'#4F_SJX%=55_NYA=C2GS)[
MRQ9Y1GG>9@)5[8<T@PI<SE]K9'\?:0[516LWB38\]3>+Z@+8F$:U!N;S:+V/
M_EJ?.G%#3*@@$" F%?!\%0 B. 9!@&5 H2O=L/5^HJKCH27MIQ\/*,"US]D;
M7!V6G"T#)U9<N^"-Y%87J97:-ASU)K8Z^%6MU7[>X4'?#S,ZG>@2"$:4"> 3
MI"]NA$<!PWZ@5<=])8. ^,HS?L*W\#PTL3T_Q5J@LWBFMZ3KL-RL23BQWEK&
M;_?X;C76;L_MEI[Z?V"W&D#MD[H;!K:-Q:]R&A=+99)_TM_4!!(7AXQ1 ''1
M6%"8@"B"'$"(H@#Z*.+8<-_LY@!#D^"J0_8,TBE0FO80MTALVSVTIZ:?OF%;
M5BS:A?6A=V@4;CGLN458'\YN<[#!SE:\[^<RF\;)]+]9>I_?7*3S6YH\3BAA
M0>#Z/D NTJLFIQ%@))( "2*8I#Z4@IMIN':<@4IYC=59@G56:$TE74]M6V5W
M)JP?@9MR92'TO4QTT'N]WYYEOS>X7?7O-^]X:[!\#N!S]B5+?\8:_B3DTF/$
M=P&AA.B57"E 0R:!!PGQ,2>>'QINF*\?:*!IX.F>U],3*VO EC<(M_EMFPJZ
ML]9/+K @S/XV80,;W6\4;CO^-;<*&\)KO%G89&_?M'KZQ;-WVO-$<J630.0"
M'"($/$\@0 ,? 8(P=A'!;DA:WW*H'6%H2>"ID[-$Z6B83H'3O*.U263[UI8U
M/7WUN-HR8]7NJHV^4]]KTV/O#;#:@.HZ8?6&G??J5;>.,8ZQ1!P"Y$-=WZM(
M .JY"/@J\A7Q1+$QWG*7WC]I?]Y1-N9UVI+W#]F,=_)=>"?:?S>$G7=F>^Y,
M=MM5OXE+?73^8OU.O/RUX/,7_P=02P,$%     @ KH9<5;^H:+QP!@   2\
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MZ%ZZ9Z8/=OX'4$L! A0#%     @ KH9<52)_+F!E&0  _IT  !$
M     ( !     &%M<F,M,C R,C$P,C8N:'1M4$L! A0#%     @ KH9<58]F
MT2EE @  ;@<  !$              ( !E!D  &%M<F,M,C R,C$P,C8N>'-D
M4$L! A0#%     @ KH9<5729A'C>"0  ^UD  !4              ( !*!P
M &%M<F,M,C R,C$P,C9?;&%B+GAM;%!+ 0(4 Q0    ( *Z&7%6_J&B\< 8
M  $O   5              "  3DF  !A;7)C+3(P,C(Q,#(V7W!R92YX;6Q0
52P4&      0 !  $ 0  W"P

end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
