v3.21.2

Subsequent events (Details) - Subsequent Events [Member] $ / shares in Units, $ in Millions	Jul. 30, 2021 USD ($) $ / shares
Dividends Approved [Abstract]
Dividend declaration date	Jul. 30, 2021
Dividend approved (in dollars per share) | $ / shares	$ 0.43
Dividend approved expected date to be paid	Sep. 15, 2021
J.P. Morgan Securities LLC [Member] | Top of Range [Member]
Dividends Approved [Abstract]
Amount of ordinary stock to be issued | $	$ 150

X

- Definition

Equity impact of the value of new stock issued or issuable. Includes shares issued in an initial public offering or a secondary public offering.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

X

- Definition

Date the declared dividend will be paid, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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Namespace Prefix:	aby_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Date the dividend to be paid was declared, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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Namespace Prefix:	aby_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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X

- Definition

The amount, per share, of dividends proposed or declared before financial statements were authorised for issue but not recognised as distribution to owners.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 137
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_137_a&doctype=Standard
-URIDate 2020-01-01

+ Details

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Balance Type:	na
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- Details

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Namespace Prefix:
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X

- Details

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Period Type:

X

- Details

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