Ameresco, Inc. Annual report [Section 13 and 15(d), not S-K Item 405]

Annual report [Section 13 and 15(d), not S-K Item 405]

Cover
- Cover Page
- Audit Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Commitments and Contingencies (Details)

v3.25.0.1

Commitments and Contingencies (Details)			1 Months Ended		12 Months Ended
Commitments and Contingencies (Details)	Sep. 05, 2024 USD ($)	Aug. 04, 2023 USD ($)	Dec. 31, 2021 USD ($)	Oct. 31, 2021 USD ($) project	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Aug. 30, 2024 project
Loss Contingencies [Line Items]
Number of battery energy storage system projects \| project				3				3
Liquidated damages up to a maximum amount				$ 89,000,000
Maximum amount of liquidated damages	$ 110,000,000
Payment of contingent consideration					$ 0	$ 1,866,000	$ 0
Contingent consideration					1,614,000	1,465,000
Bright Canyon Corporation
Loss Contingencies [Line Items]
Consideration transferred, contingent consideration		$ 40,000,000
Contingent consideration, term		7 years
Plug Smart
Loss Contingencies [Line Items]
Contingent consideration, liability, revenue earn-outs, payment period			5 years
Maximum cumulative earn-out			$ 5,000,000
Contingent consideration, liability			$ 2,160,000
Payment of contingent consideration						$ 3,040,000
Contingent consideration					1,614,000
Plug Smart \| Selling, general and administrative expense
Loss Contingencies [Line Items]
Increase (decrease) in contingent consideration					$ 149,000

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