XML 144 R123.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Commitments and contingencies - Narrative (Details) - Mountain View Fire $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 USD ($) | May 06, 2024 lawsuit | Nov. 17, 2020 lawsuit
Commitments Disclosure [Line Items] |  |  |
Number of active lawsuits |  |  | 22
Number of lawsuits filed by groups of plaintiffs |  |  | 15
Number of wrongful death lawsuits |  |  | 1
Number of non-litigation claims |  |  | 6
Number of lawsuits filed by insurance companies |  | 20 |
Accrued estimated losses | $ | $ 172,300 |  |
Expected recoveries of insurance amount | $ | 116,000 |  |
Expenses of wildlife memerandum account | $ | $ 56,300 |  |
Damage from Fire, Explosion or Other Hazard |  |  |
Commitments Disclosure [Line Items] |  |  |
Number of non-litigation claims |  |  | 1
Trial on the remaining lawsuits |  |  | 2

X
- Definition Commitments Disclosure [Line Items] + References No definition available. + Details
Name: | aqunf_CommitmentsDisclosureLineItems
Namespace Prefix: | aqunf_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Expenses of Wildlife Memorandum Account + References No definition available. + Details
Name: | aqunf_ExpensesOfWildlifeMemorandumAccount
Namespace Prefix: | aqunf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of Lawsuits + References No definition available. + Details
Name: | aqunf_NumberOfLawsuits
Namespace Prefix: | aqunf_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Lawsuits Filed by Groups of Plaintiffs + References No definition available. + Details
Name: | aqunf_NumberOfLawsuitsFiledByGroupsOfPlaintiffs
Namespace Prefix: | aqunf_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Lawsuits Filed by Insurance Companies + References No definition available. + Details
Name: | aqunf_NumberOfLawsuitsFiledByInsuranceCompanies
Namespace Prefix: | aqunf_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Non-litigation Claims + References No definition available. + Details
Name: | aqunf_NumberOfNonLitigationClaims
Namespace Prefix: | aqunf_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Wrongful Death Lawsuits + References No definition available. + Details
Name: | aqunf_NumberOfWrongfulDeathLawsuits
Namespace Prefix: | aqunf_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Remaining Number Of Non-Litigation Claims Trail + References No definition available. + Details
Name: | aqunf_RemainingNumberOfNonLitigationClaimsTrail
Namespace Prefix: | aqunf_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Carrying amount as of the balance sheet date of amounts expected to be recovered under the terms of insurance contracts. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_EstimatedInsuranceRecoveries
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Reflects the estimated amount of loss from the specified contingency as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 720 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483359/720-20-50-1 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 27 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482395/460-10-55-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483076/450-20-50-9 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483076/450-20-50-4 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-3 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-2 + Details
Name: | us-gaap_LossContingencyEstimateOfPossibleLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | srt_LitigationCaseAxis=aqunf_MountainViewFireMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=us-gaap_DamageFromFireExplosionOrOtherHazardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |