v3.10.0.1

Financial information by segment, Revenues and Further Adjusted EBITDA (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($) Customer	Dec. 31, 2017 USD ($) Customer	Dec. 31, 2016 USD ($)
Financial information by segment [Abstract]
Number of customers representing more than 10% of total revenues | Customer	4	3
Revenue	$ 1,043,822	$ 1,008,381	$ 971,797
Further Adjusted EBITDA	$ 850,607	$ 779,310	763,310
Renewable Energy [Member]
Financial information by segment [Abstract]
Number of customers representing more than 10% of total revenues | Customer	3	2
Revenue	$ 793,557	$ 767,226	724,325
Further Adjusted EBITDA	$ 664,428	$ 569,193	538,427
Efficient Natural Gas [Member]
Financial information by segment [Abstract]
Number of customers representing more than 10% of total revenues | Customer	1	1
Revenue	$ 130,799	$ 119,784	128,046
Further Adjusted EBITDA	93,858	106,140	106,492
Electric Transmission Lines [Member]
Financial information by segment [Abstract]
Revenue	95,998	95,096	95,137
Further Adjusted EBITDA	78,461	87,695	104,795
Water [Member]
Financial information by segment [Abstract]
Revenue	23,468	26,275	24,288
Further Adjusted EBITDA	13,860	16,282	13,596
North America [Member]
Financial information by segment [Abstract]
Revenue	357,177	332,705	337,061
Further Adjusted EBITDA	308,748	282,328	284,691
South America [Member]
Financial information by segment [Abstract]
Revenue	123,214	120,797	118,764
Further Adjusted EBITDA	100,234	108,766	124,599
EMEA [Member]
Financial information by segment [Abstract]
Revenue	563,431	554,879	515,972
Further Adjusted EBITDA	$ 441,625	$ 388,216	$ 354,020

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- Definition

Further adjusted earnings before interest, taxes, depreciation and amortization (EBITDA) is calculated as profit/(loss) for the period attributable to the parent company, after adding back loss/(profit) attributable to non-controlling interests from continued operations, income tax, share of profit/(loss) of associates carried under the equity method, finance expense net, depreciation, amortization and impairment charges of entities included in the consolidated financial statements, and dividends received from the preferred equity investment in Abengoa Concessoes Brasil Holding S.A (ACBH).

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