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The amount of payables due to the investment from Liberty, down payments from clients and other liabilities which fair value is similar to the nominal value and the effect of discounting them is not significant.

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Changes in the scope of the consolidated condensed interim financial statements (Details) $ in Thousands	May 24, 2019 USD ($) MW	Dec. 28, 2018 USD ($) TransmissionLine	Oct. 10, 2018 USD ($)	Jun. 30, 2019 USD ($)	May 09, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 13, 2018 USD ($)	Dec. 11, 2018 USD ($)	Nov. 27, 2018	Feb. 28, 2018 USD ($)
Business acquisition [Abstract]
Investments carried under the equity method				$ 135,496		$ 53,419
Current assets				1,139,696		1,127,695
Project debt long term				(4,204,804)		(4,826,659)
Deferred tax liabilities				(247,412)		(211,000)
Project debt short term				$ (792,616)		(264,455)
Algonquin [Member]
Changes in the scope of the consolidated financial statements [Abstract]
Percentage interest acquired									16.47%
Asset Acquisition [Member]
Changes in the scope of the consolidated financial statements [Abstract]
Purchase price						76,604
Business acquisition [Abstract]
Concessional assets						155,909
Investments carried under the equity method						1
Current assets						5,646
Project debt long term						(79,016)
Deferred tax liabilities						(590)
Project debt short term						(2,346)
Other current and non-current liabilities						(3,000)
Asset acquisition - purchase price						(76,604)
Net result of the asset acquisition						$ 0
Mini- Hydro [Member]
Changes in the scope of the consolidated financial statements [Abstract]
Percentage interest acquired										100.00%
Purchase price										$ 9,327
Business acquisition [Abstract]
Asset acquisition - purchase price										$ (9,327)
Pemex Transportation System [Member]
Changes in the scope of the consolidated financial statements [Abstract]
Percentage interest acquired			5.00%
Consideration initial amount will be disbursed as construction progresses			$ 7,000
Additional ownership percentage to be acquired			65.00%
Remaining ownership percentage to be acquired one year after COD			30.00%
Total estimated equity investment			$ 150,000
Chile TL3 [Member]
Changes in the scope of the consolidated financial statements [Abstract]
Purchase price								$ 6,000
Business acquisition [Abstract]
Asset acquisition - purchase price								$ (6,000)
Melowind [Member]
Changes in the scope of the consolidated financial statements [Abstract]
Percentage interest acquired							100.00%
Purchase price							$ 45,000
Business acquisition [Abstract]
Asset acquisition - purchase price							$ (45,000)
Power Substation [Member]
Changes in the scope of the consolidated financial statements [Abstract]
Purchase price		$ 16,000
Number of transmission lines acquired \| TransmissionLine		2
Business acquisition [Abstract]
Asset acquisition - purchase price		$ (16,000)
Amherst Island [Member]
Changes in the scope of the consolidated financial statements [Abstract]
Gross capacity \| MW	75
Total investment	$ 97,200
Business acquisition [Abstract]
Investments carried under the equity method	4,900				$ 4,900
Amherst Island [Member] \| Algonquin [Member]
Business acquisition [Abstract]
Investments carried under the equity method	$ 92,300