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v3.23.3

Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Accounting Policies [Abstract] |  |  |  |
Factoring fees | $ 2,075 | $ 0 | $ 3,326 | $ 0

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- Definition Servicing Asset, Factoring Fees + References No definition available. + Details
Name: | amrc_ServicingAssetFactoringFees
Namespace Prefix: | amrc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration