Grants and other liabilities (Details) $ in Thousands	6 Months Ended
Jun. 30, 2022 USD ($) Type	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Grants and other liabilities [Abstract]
Grants	$ 940,975		$ 970,557
Other Liabilities	311,374		293,187
Grants and other non-current liabilities	$ 1,252,349		1,263,744
Number of grant types \| Type	2
Income from grants	$ 29,661	$ 29,625
Solana and Mojave [Member]
Grants and other liabilities [Abstract]
Income from grants	29,300	$ 29,400
Solar Plants in Spain [Member]
Grants and other liabilities [Abstract]
Provisions for high risk market prices	80,000		75,000
U.S. Department of Treasury [Member]
Grants and other liabilities [Abstract]
Grants	626,000		642,000
Federal Financing Bank [Member]
Grants and other liabilities [Abstract]
Grants	313,000		326,000
Liberty Interactive Corporation [Member]
Grants and other liabilities [Abstract]
Finance lease liabilities	61,000		59,000
Dismantling provisions	$ 123,000		$ 125,000

The amount of provisions for dismantling of concessional assets.

No definition available.

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Period Type:	instant

- Definition

The amount of non-current government grants recognized on the statement of financial position as deferred income and the amount of non-current financial liabilities including investments made by Liberty Interactive Corporation that the entity does not separately disclose in the same statement or note.

+ References

No definition available.

+ Details

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Namespace Prefix:	aby_
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Balance Type:	credit
Period Type:	instant

- Definition

Refers to the number of grant types recognized by the entity.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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- Definition

The amount of provisions for high risk market assets.

+ References

No definition available.

+ Details

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

- References

No definition available.

+ Details

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- Definition

The amount of non-current government grants recognised on the statement of financial position as deferred income. [Refer: Government [member]; Government grants]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard
-URIDate 2021-03-24

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of non-current lease liabilities. [Refer: Lease liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2021-01-01
-Paragraph 47
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_47_b&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_NoncurrentLeaseLiabilities
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of non-current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Non-current liabilities]

+ References

+ Details

Name:	ifrs-full_OtherNoncurrentLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of income recognised in relation to government grants. [Refer: Government grants]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 20
-IssueDate 2021-01-01
-Paragraph 39
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=20&code=ifrs-tx-2021-en-r&anchor=para_39_b&doctype=Standard
-URIDate 2021-03-24

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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- Details

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- Details

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- Details

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- Details

Name:	ifrs-full_CounterpartiesAxis=aby_LibertyInteractiveCorporationMember
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