v3.8.0.1

Nature of the business, Financing arrangements (Details) € in Millions, $ in Millions |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Nov. 01, 2017 | Nov. 30, 2017 | Dec. 31, 2017 | Dec. 31, 2016 | Feb. 10, 2017 USD ($) | Feb. 10, 2017 EUR (€) | Feb. 03, 2017
Note Issuance Facility [Member] |  |  |  |  |  |  |
Financing arrangements [Abstract] |  |  |  |  |  |  |
Principal amount |  |  |  |  | $ 330 | € 275 |
Abengoa [Member] |  |  |  |  |  |  |
Financing arrangements [Abstract] |  |  |  |  |  |  |
Percentage of financial liabilities approved |  |  |  |  |  |  | 94.00%
Minimum ownership requirement percentage |  | 30.00% |  | 35.00% |  |  |
Ownership interest |  |  | 41.47% |  |  |  |
Percentage of outstanding shares pledged as collateral |  |  | 41.44% |  |  |  |
Stake in parent to be sold to Algonquin | 25.00% |  |  |  |  |  |
Remaining ownership percentage | 16.50% |  |  |  |  |  |
Abengoa [Member] | Solana and Mojave [Member] |  |  |  |  |  |  |
Financing arrangements [Abstract] |  |  |  |  |  |  |
Minimum ownership requirement percentage |  | 16.00% | 30.00% |  |  |  |

X
- References No definition available. + Details
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- Definition The minimum percentage of ownership in a concessional asset required that will trigger a change of ownership clause for project financing arrangements. + References No definition available. + Details
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- Definition The percentage of outstanding shares of the entity that are pledged as collateral under various financing arrangements. + References No definition available. + Details
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- Definition The proportion of ownership interests in the parent held by a subsidiary. + References No definition available. + Details
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- Definition The approved percentage of creditor support above the statutory limit of 75% of financial liability of the entity for obtaining refinancing of the entity's financial debt. + References No definition available. + Details
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Period Type: | instant

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- Definition Refers to the remaining ownership percentage that entity intends to sell in a private transaction. + References No definition available. + Details
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Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition This element represents sale of ownership stake in percentage. + References No definition available. + Details
Name: | aby_SaleOfOwnershipPercentage
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Balance Type: | na
Period Type: | duration

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- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2016-01-13 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2016-03-30&anchor=para_112_c&doctype=Standard -URIDate 2016-03-31 + Details
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- Details
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- Details
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- Details
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Balance Type: |
Period Type: |