XML 79 R70.htm IDEA: XBRL DOCUMENT
v3.22.1

Derivative Instruments and Hedging Activities - Summary of Active Derivative Instruments (Details) | 3 Months Ended
--- | ---
Mar. 31, 2022 USD ($) MMBTU $ / MMBTU
Designated | Interest Rate Swap October 2029 |
Derivative [Line Items] |
Term of contract, years | 11 years
Fixed interest rate, percentage | 5.77%
Initial Notional Amount ($) | $ 9,200,000
Designated | Interest Rate Swap June 2033 |
Derivative [Line Items] |
Term of contract, years | 15 years
Fixed interest rate, percentage | 5.24%
Initial Notional Amount ($) | $ 10,000,000
Designated | Interest Rate Swap - December 2027 |
Derivative [Line Items] |
Term of contract, years | 10 years
Fixed interest rate, percentage | 4.74%
Initial Notional Amount ($) | $ 14,100,000
Designated | Interest Rate Swap - December 2038 |
Derivative [Line Items] |
Term of contract, years | 15 years
Fixed interest rate, percentage | 3.26%
Initial Notional Amount ($) | $ 14,084,000
Designated | Interest Rate Swap - February 2023 |
Derivative [Line Items] |
Term of contract, years | 7 years
Fixed interest rate, percentage | 2.19%
Initial Notional Amount ($) | $ 20,746,000
Designated | Interest Rate Swap - June 2028 |
Derivative [Line Items] |
Term of contract, years | 8 years
Fixed interest rate, percentage | 3.70%
Initial Notional Amount ($) | $ 14,643,000
Designated | Interest Rate Swap - June 2028 |
Derivative [Line Items] |
Term of contract, years | 8 years
Fixed interest rate, percentage | 3.70%
Initial Notional Amount ($) | $ 10,734,000
Designated | Interest Rate Swap - March 2024 |
Derivative [Line Items] |
Term of contract, years | 15 years 6 months
Fixed interest rate, percentage | 5.40%
Initial Notional Amount ($) | $ 13,081,000
Not Designated | Interest Rate Swap March 2033 |
Derivative [Line Items] |
Term of contract, years | 13 years
Fixed interest rate, percentage | 0.93%
Initial Notional Amount ($) | $ 9,505,000
Not Designated | Interest Rate Swap March 2033 |
Derivative [Line Items] |
Term of contract, years | 13 years
Fixed interest rate, percentage | 0.93%
Initial Notional Amount ($) | $ 6,968,000
Not Designated | Interest Rate Swap - September 2023 |
Derivative [Line Items] |
Term of contract, years | 2 years 9 months
Fixed interest rate, percentage | 0.41%
Initial Notional Amount ($) | $ 26,250,000
Not Designated | Commodity Contract - June 2024 |
Derivative [Line Items] |
Term of contract, years | 3 years 6 months
Active commodity swap, price (in usd per unit) | $ / MMBTU | 2.65
Nonmonetary notional amount (in MMBtus) | MMBTU | 3,296,160
Not Designated | Make-whole Provisions December 2038 | Other liabilities |
Derivative [Line Items] |
Liability derivatives, fair value | $ 583,000
Not Designated | Make-whole Provisions April 2031 | Other liabilities |
Derivative [Line Items] |
Liability derivatives, fair value | 77,000
Not Designated | Make-whole Provisions February 2034 | Other liabilities |
Derivative [Line Items] |
Liability derivatives, fair value | 72,000
Not Designated | Make-whole Provision December 2027 | Other liabilities |
Derivative [Line Items] |
Liability derivatives, fair value | 56,000
Not Designated | Make-whole Provision May 2028 | Other liabilities |
Derivative [Line Items] |
Liability derivatives, fair value | 12,000
Not Designated | Make-whole Provision April 2045 | Other liabilities |
Derivative [Line Items] |
Liability derivatives, fair value | 319,000
Not Designated | Make-whole Provision March 2046 | Other liabilities |
Derivative [Line Items] |
Liability derivatives, fair value | $ 3,966,000

X
- Definition Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
Name: | us-gaap_DerivativeFixedInterestRate
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Nominal energy measure used to calculate payments on a derivative instrument. + References No definition available. + Details
Name: | us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:energyItemType
Balance Type: | na
Period Type: | duration

X
- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 + Details
Name: | us-gaap_DerivativeNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fixed price related to the price risk swap derivative. + References No definition available. + Details
Name: | us-gaap_DerivativeSwapTypeFixedPrice
Namespace Prefix: | us-gaap_
Data Type: | srt-types:perUnitItemType
Balance Type: | na
Period Type: | instant

X
- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_DerivativeTermOfContract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_InterestRateSwapOctober2029Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_InterestRateSwapJune2033Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_InterestRateSwapDecember2027Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_InterestRateSwapDecember2038Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_InterestRateSwapFebruary2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_InterestRateSwapJune2028Contract1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_InterestRateSwapJune2028Contract2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_InterestRateSwapMarch2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_InterestRateSwapMarch2033Contract1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_InterestRateSwapMarch2033Contract2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_InterestRateSwapSeptember2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_CommodityContractJune2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_MakeWholeProvisionDecember2038Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_MakeWholeProvisionApril2031Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_MakeWholeProvisionFebruary2034Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_MakeWholeProvisionDecember2027Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_MakeWholeProvisionMay2028Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_MakeWholeProvisionApril2045Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=amrc_MakeWholeProvisionMarch2046Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |