XML 69 R59.htm IDEA: XBRL DOCUMENT
v3.24.3

ENERGY ASSETS, NET - August 2023 Purchase and Sale Agreement (Details) $ in Thousands |  |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 27, 2024 USD ($) energy_asset | Jan. 12, 2024 USD ($) | Dec. 28, 2023 land_lease | Aug. 04, 2023 USD ($) | Sep. 30, 2024 USD ($) | Jan. 31, 2024 USD ($) | Sep. 30, 2024 USD ($) energy_asset | Jun. 30, 2024 USD ($) energy_asset | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Dec. 31, 2023 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Payment on seller's promissory note |  |  |  |  |  |  |  |  | $ 41,941 | $ 12,500 |
Number of land leases acquired | land_lease |  |  | 4 |  |  |  |  |  |  |  |
Number of energy assets disposed of | energy_asset |  |  |  |  |  |  | 4 | 4 |  |  |
Sale of investment tax credit |  |  |  |  |  |  | $ 23,628 | $ 23,667 |  |  |
Deposit for sale of investment tax credit | $ 239 |  |  |  |  |  |  |  |  |  |
Number of additional energy assets disposed of | energy_asset | 4 |  |  |  |  |  |  |  |  |  |
Investment tax credit | $ 23,867 |  |  |  |  |  |  |  |  |  |
Bright Canyon Corporation |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of stock acquired |  |  |  | 100.00% |  |  |  |  |  |  |
Asset acquisition, total purchase price |  | $ 48,035 |  | $ 87,964 |  |  |  |  |  |  |
Cash payment for asset acquisition |  | 9,839 |  | 5,000 |  |  |  |  |  |  |
Payable to seller |  | $ 32,500 |  | 46,694 | $ 5,696 |  | $ 5,696 |  | $ 5,696 |  |
Asset acquisition, debt assumed |  |  |  | 36,270 |  |  |  |  |  |  |
Cash acquired |  |  |  | $ 11,206 |  |  |  |  |  |  |
Payment on seller's promissory note |  |  |  |  | $ 12,500 | $ 29,441 |  |  |  |  | $ 18,400
Adjustment, consideration transferred |  |  |  |  |  | $ 1,147 |  |  |  |  |

X
- Definition Asset Acquisition, Adjustment, Consideration Transferred + References No definition available. + Details
Name: | amrc_AssetAcquisitionAdjustmentConsiderationTransferred
Namespace Prefix: | amrc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Asset Acquisition, Cash and Equivalents + References No definition available. + Details
Name: | amrc_AssetAcquisitionCashAndEquivalents
Namespace Prefix: | amrc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Asset Acquisition, Consideration Transferred, Debt Assumed + References No definition available. + Details
Name: | amrc_AssetAcquisitionConsiderationTransferredDebtAssumed
Namespace Prefix: | amrc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Asset Acquisition, Consideration Transferred, Payable To Seller + References No definition available. + Details
Name: | amrc_AssetAcquisitionConsiderationTransferredPayableToSeller
Namespace Prefix: | amrc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Asset Acquisition, Number Of Land Leases Acquired + References No definition available. + Details
Name: | amrc_AssetAcquisitionNumberOfLandLeasesAcquired
Namespace Prefix: | amrc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Asset Acquisition, Percentage of Shares Acquired + References No definition available. + Details
Name: | amrc_AssetAcquisitionPercentageOfSharesAcquired
Namespace Prefix: | amrc_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Cash Payment For Asset Acquisition + References No definition available. + Details
Name: | amrc_CashPaymentForAssetAcquisition
Namespace Prefix: | amrc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number Of Additional Energy Assets Disposed Of + References No definition available. + Details
Name: | amrc_NumberOfAdditionalEnergyAssetsDisposedOf
Namespace Prefix: | amrc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number Of Energy Assets Disposed Of + References No definition available. + Details
Name: | amrc_NumberOfEnergyAssetsDisposedOf
Namespace Prefix: | amrc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proceeds From Deposit For Sale Of Investment Tax Credit + References No definition available. + Details
Name: | amrc_ProceedsFromDepositForSaleOfInvestmentTaxCredit
Namespace Prefix: | amrc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Proceeds From Sale Of Investment Tax Credits + References No definition available. + Details
Name: | amrc_ProceedsFromSaleOfInvestmentTaxCredits
Namespace Prefix: | amrc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Repayment Of Promissory Note + References No definition available. + Details
Name: | amrc_RepaymentOfPromissoryNote
Namespace Prefix: | amrc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 55 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479908/805-50-55-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 25 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480060/805-50-25-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 30 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480027/805-50-30-1 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 30 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480027/805-50-30-2 + Details
Name: | us-gaap_AssetAcquisitionConsiderationTransferred
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479907/805-20-50-5 + Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount deducted from an entities' taxes, reflecting a percentage of an amount invested in certain assets spread over the useful life of those assets; includes deferred investment tax credits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
Name: | us-gaap_InvestmentTaxCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_AssetAcquisitionAxis=amrc_BrightCanyonCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |