v3.21.1

Corporate debt, Breakdown of corporate debt (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Corporate debt [Abstract] |  |
Non-current | $ 939,694 | $ 970,077
Current | 25,626 | 23,648
Total Corporate Debt | $ 965,320 | $ 993,725

X
- Definition The current portion of non-current credit facilities with financial entities, notes and bonds received at the corporate parent level. + References No definition available. + Details
Name: | aby_CurrentPortionOfNoncurrentCreditFacilitiesNotesAndBondsReceived
Namespace Prefix: | aby_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The current and non-current portions of credit facilities with financial entities, notes and bonds received at the corporate parent level. + References No definition available. + Details
Name: | aby_LongTermAndShortTermCorporateDebt
Namespace Prefix: | aby_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The non-current portion of non-current credit facilities with financial entities, notes and bonds received at the corporate parent level. + References No definition available. + Details
Name: | aby_NonCurrentPortionOfCreditFacilitiesNotesAndBondsReceived
Namespace Prefix: | aby_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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