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Summary of Significant Accounting Policies - Accrued Expenses and Other Current Liabilities (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Accounting Policies [Abstract]
In use and franchise tax payable	$ 47,041

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- Definition

In Use And Franchise Tax Payable

+ References

No definition available.

+ Details

Name:	amrc_InUseAndFranchiseTaxPayable
Namespace Prefix:	amrc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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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