v3.10.0.1

Corporate debt, Movement in corporate debt, split between cash and non-cash items (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($)
Corporate debt [Abstract]
Beginning balance	$ 643,083
Cash flow	14,403
Non-cash changes	26,587
Ending balance	$ 684,073

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- References

No definition available.

+ Details

Name:	aby_CorporateDebtAbstract
Namespace Prefix:	aby_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

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

+ References

No definition available.

+ Details

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

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- Definition

The change in current and non-current portions of credit facilities with financial entities, notes and bonds received at the corporate parent level during the period.

+ References

No definition available.

+ Details

Name:	aby_MovementInLongTermAndShortTermCorporateDebtCashFlows
Namespace Prefix:	aby_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- Definition

The change due to non-cash charges in current and non-current portions of credit facilities with financial entities, notes and bonds received at the corporate parent level during the period.

+ References

No definition available.

+ Details

Name:	aby_MovementInLongTermAndShortTermCorporateDebtNonCashCharges
Namespace Prefix:	aby_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration