v3.8.0.1

Significant accounting policies, Basis of preparation (Details) | Jun. 13, 2014 ConcessionalAsset
--- | ---
Significant accounting policies [Abstract] |
Number of selected assets subject to ROFO Agreement | 4

X
- Definition The number of assets in select countries subject to the entity's Right of First Offer (ROFO) Agreement. + References No definition available. + Details
Name: | aby_NumberOfAssetsSubjectToAgreement
Namespace Prefix: | aby_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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