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

The current portion of non-current credit facilities with financial entities, notes and bonds received at the corporate parent level.

No definition available.

Name:	aby_CurrentPortionOfNoncurrentCreditFacilitiesNotesAndBondsReceived
Namespace Prefix:	aby_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant