v3.24.0.1

Derivative financial instruments, Breakdown of maturities of notional and fair value amounts (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Breakdown of Maturities of Notional and Fair Value Amounts [Abstract] |  |  |
Gain (loss) on cash flow hedges | $ (27,115) | $ 38,187 | $ 58,292
Cap [Member] |  |  |
Breakdown of Maturities of Notional and Fair Value Amounts [Abstract] |  |  |
Notionals | 1,366,321 | 1,432,224 |
Fair value | $ 60,102 | $ 94,192 |
Cap [Member] | Up to 1 Year [Member] |  |  |
Breakdown of Maturities of Notional and Fair Value Amounts [Abstract] |  |  |
Notionals | 248,898 | 245,147 |
Fair value | $ 3,957 | $ 10,868 |
Cap [Member] | Between 1 and 2 Years [Member] |  |  |
Breakdown of Maturities of Notional and Fair Value Amounts [Abstract] |  |  |
Notionals | 279,215 | 310,393 |
Fair value | $ 10,124 | $ 17,860 |
Cap [Member] | Between 2 and 3 Years [Member] |  |  |
Breakdown of Maturities of Notional and Fair Value Amounts [Abstract] |  |  |
Notionals | 314,644 | 217,498 |
Fair value | $ 12,070 | $ 12,257 |
Cap [Member] | Subsequent Years [Member] |  |  |
Breakdown of Maturities of Notional and Fair Value Amounts [Abstract] |  |  |
Notionals | 523,564 | 659,186 |
Fair value | $ 33,951 | $ 53,207 |
Swap [Member] |  |  |
Breakdown of Maturities of Notional and Fair Value Amounts [Abstract] |  |  |
Notionals | 508,125 | 542,376 |
Fair value | $ (29,163) | $ (12,159) |
Swap [Member] | Up to 1 Year [Member] |  |  |
Breakdown of Maturities of Notional and Fair Value Amounts [Abstract] |  |  |
Notionals | 43,013 | 47,029 |
Fair value | $ (1,740) | $ (991) |
Swap [Member] | Between 1 and 2 Years [Member] |  |  |
Breakdown of Maturities of Notional and Fair Value Amounts [Abstract] |  |  |
Notionals | 95,701 | 102,476 |
Fair value | $ (5,347) | $ (2,189) |
Swap [Member] | Between 2 and 3 Years [Member] |  |  |
Breakdown of Maturities of Notional and Fair Value Amounts [Abstract] |  |  |
Notionals | 104,848 | 112,855 |
Fair value | $ (5,848) | $ (2,851) |
Swap [Member] | Subsequent Years [Member] |  |  |
Breakdown of Maturities of Notional and Fair Value Amounts [Abstract] |  |  |
Notionals | 264,563 | 280,016 |
Fair value | $ (16,228) | $ (6,128) |
Cash Flow Hedge [Member] |  |  |
Breakdown of Maturities of Notional and Fair Value Amounts [Abstract] |  |  |
Fair value of financial liabilities | $ 29,957 | $ 16,847 |
Interest Rate Derivatives [Member] |  |  |
Breakdown of Maturities of Notional and Fair Value Amounts [Abstract] |  |  |
Percentage of notional amount of project debt hedged | 92.00% | 92.00% |
Percentage of notional amount of corporate debt hedged | 94.00% | 96.00% |
Percent of notional amount of debt hedged in next 12 months | 100.00% |  |
Percentage of notional amount of debt hedged in year two | 75.00% |  |
Interest Rate Derivatives [Member] | Cash Flow Hedge [Member] |  |  |
Breakdown of Maturities of Notional and Fair Value Amounts [Abstract] |  |  |
Gain (loss) on cash flow hedges | $ 27,100 | $ (38,200) | $ (58,300)
After-tax result accumulated in equity | 308,000 | 345,600 |
Fair value of financial liabilities | 29,163 | 12,159 |
Notes Conversion Option [Member] | Cash Flow Hedge [Member] |  |  |
Breakdown of Maturities of Notional and Fair Value Amounts [Abstract] |  |  |
Fair value of financial liabilities | $ 794 | $ 4,688 |

X
- Definition The percentage of the notional amounts of debt issued at the corporate level under project finance that the entity hedges. + References No definition available. + Details
Name: | aby_PercentageOfNotionalAmountOfCorporateDebtHedged
Namespace Prefix: | aby_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of the notional amount of the entity's debt hedged with interest rate swaps and options for next twelve months. + References No definition available. + Details
Name: | aby_PercentageOfNotionalAmountOfDebtHedgedInNextTwelveMonths
Namespace Prefix: | aby_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of the notional amount of the entity's debt hedged with interest rate swaps and options for year two. + References No definition available. + Details
Name: | aby_PercentageOfNotionalAmountOfDebtHedgedInYearTwo
Namespace Prefix: | aby_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of the notional amounts of debt issued at the project level under project finance that the entity hedges. + References No definition available. + Details
Name: | aby_PercentageOfNotionalAmountOfProjectDebtHedged
Namespace Prefix: | aby_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_DisclosureOfInformationAboutTermsAndConditionsOfHedgingInstrumentsAndHowTheyAffectFutureCashFlowsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The fair value of financial assets. [Refer: At fair value [member]; Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_25&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_FinancialAssetsAtFairValue
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The fair value of financial liabilities. [Refer: At fair value [member]; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_25&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_FinancialLiabilitiesAtFairValue
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The gains (losses) recognised in other comprehensive income on cash flow hedges, before tax, before reclassification adjustments. [Refer: Cash flow hedges [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 91 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_91_b&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of a hedging instrument, recognised as a liability. [Refer: Hedging instruments [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 24A -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_24A_a&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_HedgingInstrumentLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The nominal amount of a hedging instrument. [Refer: Hedging instruments [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 23B -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_23B_a&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 24A -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_24A_d&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_NominalAmountOfHedgingInstrument
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition A component of equity representing the reserve of cash flow hedges in relation to continuing hedges. [Refer: Reserve of cash flow hedges] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 24B -Subparagraph b -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_24B_b_ii&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_ReserveOfCashFlowHedgesContinuingHedges
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=aby_CallOptionContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_NotLaterThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanThreeYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_SwapContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfHedgesAxis=ifrs-full_CashFlowHedgesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=ifrs-full_InterestRateRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=ifrs-full_EquityPriceRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |