v3.24.1.u1

Project debt, Details of project debt (Details) $ in Thousands, € in Millions |  | 3 Months Ended |  |
--- | --- | --- | --- | ---
Feb. 24, 2023 | Mar. 31, 2024 USD ($) Agreement | Dec. 31, 2023 USD ($) | Mar. 31, 2023 EUR (€)
Project debt [Abstract] |  |  |  |
Cash held to satisfy non-recourse debt agreements |  | $ 185,000 | $ 177,000 |
Non-current |  | 3,876,671 | 3,931,873 |
Current |  | 424,457 | 387,387 |
Total Project debt |  | $ 4,301,128 | $ 4,319,260 |
Maturity date | February 24, 2028 |  |  |
Green Senior Notes [Member] |  |  |  |
Project debt [Abstract] |  |  |  |
Number of loan agreements | Agreement |  | 2 |  |
Project debt financed amount | € |  |  |  | € 198.0
Maturity date |  | June 2037 |  |

X
- Definition The amount of cash held to satisfy the customary requirements of certain non-recourse debt agreements. + References No definition available. + Details
Name: | aby_CashHeldForNonRecourseDebt
Namespace Prefix: | aby_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of current project debt issued at the project level under project finance. + References No definition available. + Details
Name: | aby_CurrentProjectDebt
Namespace Prefix: | aby_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The current and non-current portions of project debt issued at the project level under project finance. + References No definition available. + Details
Name: | aby_LongTermAndShortTermProjectDebt
Namespace Prefix: | aby_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The non-current portion of non-current project debt issued at the project level under project finance. + References No definition available. + Details
Name: | aby_NoncurrentPortionOfNoncurrentProjectDebt
Namespace Prefix: | aby_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of loan agreements. + References No definition available. + Details
Name: | aby_NumberOfLoanAgreements
Namespace Prefix: | aby_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The refinanced amount of project debt. + References No definition available. + Details
Name: | aby_ProjectDebtAmountRefinanced
Namespace Prefix: | aby_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The maturity of borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_7&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_BorrowingsMaturity
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=aby_GreenSeniorNotesTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |