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Represents the number of wind turbines.

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Represents the percentage of equity interests acquired in an entity.

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Represents the value of equity interest acquired in the entity.

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Aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due after one year (or one business cycle).

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Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of interest income earned from interest-bearing assets owed to the entity by related party.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Reflects the amount of new advances made to related parties in the form of loan and lease receivables.

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Reflects the amount of collections received from related parties to reduce the carrying amounts of loans and leases receivable due from them.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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RELATED PARTY TRANSACTIONS: (Details) $ in Thousands, MXN in Millions	1 Months Ended	3 Months Ended	6 Months Ended		12 Months Ended
	May. 31, 2010 USD ($)	Mar. 31, 2012 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2005 item	Dec. 31, 2014 USD ($)	Aug. 04, 2014 item	Mar. 31, 2012 MXN	Mar. 31, 2012 USD ($)
Related party transactions
Related parties receivables current:			$ 29,759				$ 32,835
Related parties receivable non-current:			161,244				161,244
Related parties payables:			31,870				69,083
Grupo Mexico
Related party transactions
Related parties receivables current:			800				700
Related parties payables:			7,400				2,800
Total purchases from related parties			6,900	$ 6,900
MGE
Related party transactions
Related parties receivables current:			28,200				31,900
Related parties receivable non-current:			161,200		$ 184,000		161,200
Related parties payables:			15,200				45,200
Total purchases from related parties			62,900	91,700
Sales revenues from related parties			39,000	48,800
Number of power plants \| item						2
Maximum amount of line of credit granted to related party	$ 350,000
Interest rate (as a percent)	4.40%				5.75%
Loan repaid		$ 150,000
Interest earned			4,700	4,700
MGE \| Controladora de Infraestructura Energetica Mexico, S. A. de C. V.
Related party transactions
Percentage of interest acquired									99.999%	99.999%
Value of interest acquired									MXN 1,928.6	$ 150,000
MGE \| Minera Mexico \| Maximum
Related party transactions
Ownership percentage									0.001%	0.001%
Compania Perforadora Mexico S.A.P.I. de C.V. and affiliates
Related party transactions
Related parties receivables current:			400				200
Total purchases from related parties			300	1,900
Sales revenues from related parties			200	300
Equity investment in affiliate
Related party transactions
Loan granted			$ 56,600
Ownership percentage			44.20%
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates
Related party transactions
Related parties receivables current:			$ 300
Related parties payables:							1,700
Total purchases from related parties			18,600	55,900
Sales revenues from related parties			400	400
Grupo Mexico and affiliates
Related party transactions
Total purchases from related parties			116,400	192,600
Sales revenues from related parties			110,700	71,200
Asarco LLC ("Asarco")
Related party transactions
Related parties payables:			8,300				13,800
Total purchases from related parties			14,700	24,600
Sales revenues from related parties			71,100	21,700
Higher Technology S.A.C.
Related party transactions
Related parties payables:			300				200
Total purchases from related parties			800	800
Breaker, S.A. de C.V and affiliates ("Breaker")
Related party transactions
Related parties payables:			100				700
Total purchases from related parties			500	3,600
Mexico Transportes Aereos S.A. de C.V. ("Mextransport")
Related party transactions
Related parties payables:							1,300
Total purchases from related parties			100	1,100
Sales revenues from related parties			100	100
Ferrocarril Mexicano, S.A. de C.V.
Related party transactions
Related parties payables:			200				1,800
Total purchases from related parties			8,200	11,600
Eolica El Retiro, S.A.P.I. de C.V.
Related party transactions
Related parties payables:			100				$ 1,600
Total purchases from related parties			4,800
Number of wind turbines \| item								37
Servicios y Fabricaciones Mecanicas S.A.C.
Related party transactions
Related parties payables:			100
Total purchases from related parties			400	700
Companies with relationship to SCC executive officers' families
Related party transactions
Total purchases from related parties			2,000	6,000
Sempertrans and affiliates
Related party transactions
Related parties payables:			200
Total purchases from related parties			$ 300	800
PIGOBA, S.A. de C.V.
Related party transactions
Total purchases from related parties				$ 100