Ameresco, Inc. Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

Cover
- Cover Page
Financial Statements
Notes to Financial Statements
Accounting Policies
- SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)
Notes Tables
Notes Details

COMMITMENTS AND CONTINGENCIES (Details)

v3.26.1

COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands	Sep. 05, 2024 USD ($)	Aug. 04, 2023 USD ($)	Jun. 30, 2026 USD ($)	Dec. 31, 2025 USD ($)	Jun. 10, 2025 USD ($)	Aug. 30, 2024 project	Oct. 31, 2021 USD ($) project
Loss Contingencies [Line Items]
Number of battery energy storage system projects \| project						3	3
Maximum amount of liquidated damages	$ 89,000						$ 89,000
Number of battery energy storage system projects, agreement reached \| project						2
Milestone payment received	$ 110,000
Energy Assets
Loss Contingencies [Line Items]
Energy assets			$ 2,814,726	$ 2,602,787
Loss of Deposits From Powin Bankruptcy \| Energy Assets
Loss Contingencies [Line Items]
Energy assets			16,683
Minimum \| Loss of Deposits From Powin Bankruptcy
Loss Contingencies [Line Items]
Maximum amount of liquidated damages					$ 0
Maximum \| Loss of Deposits From Powin Bankruptcy
Loss Contingencies [Line Items]
Maximum amount of liquidated damages					26,683
Loss contingency accrual					$ 10,000
Powin, LLC
Loss Contingencies [Line Items]
Deposits paid			$ 26,683
Bright Canyon Corporation
Loss Contingencies [Line Items]
Consideration transferred, contingent consideration		$ 40,000
Contingent consideration, term		7 years

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