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

No definition available.

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The fair value of financial assets. [Refer: At fair value [member]; Financial assets]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2017-01-01
-Paragraph 25
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_25&doctype=Standard
-URIDate 2017-03-09

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- Definition

The fair value of financial liabilities. [Refer: At fair value [member]; Financial liabilities]

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Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - MXN ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Warrants issued by UHI
Financial Instruments
Assets at fair value	$ 36,395,183	$ 38,298,606
Derivative financial instruments
Financial Instruments
Assets at fair value	2,263,874	647,770
Recurring basis
Financial Instruments
Assets at fair value	51,970,312	50,900,987
Liabilities at fair value		5,508
Recurring basis \| Derivative financial instruments
Financial Instruments
Liabilities at fair value		5,508
Recurring basis \| Temporary investments
Financial Instruments
Assets at fair value	6,013,678	5,498,219
Recurring basis \| Available-for-sale investments \| Available-for-sale financial assets
Financial Instruments
Assets at fair value	7,297,577	6,456,392
Recurring basis \| Derivative financial instruments
Financial Instruments
Assets at fair value	2,263,874	647,770
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring basis
Financial Instruments
Assets at fair value	6,013,678	5,498,219
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring basis \| Temporary investments
Financial Instruments
Assets at fair value	6,013,678	5,498,219
Internal Models with Significant Observable Inputs (Level 2) \| Recurring basis
Financial Instruments
Assets at fair value	9,561,451	7,104,162
Liabilities at fair value		5,508
Internal Models with Significant Observable Inputs (Level 2) \| Recurring basis \| Derivative financial instruments
Financial Instruments
Liabilities at fair value		5,508
Internal Models with Significant Observable Inputs (Level 2) \| Recurring basis \| Available-for-sale investments \| Available-for-sale financial assets
Financial Instruments
Assets at fair value	7,297,577	6,456,392
Internal Models with Significant Observable Inputs (Level 2) \| Recurring basis \| Derivative financial instruments
Financial Instruments
Assets at fair value	2,263,874	647,770
Internal Models with Significant Unobservable Inputs (Level 3)
Financial Instruments
Assets at fair value	36,395,183	38,298,606	$ 35,042,577
Internal Models with Significant Unobservable Inputs (Level 3) \| Recurring basis
Financial Instruments
Assets at fair value	36,395,183	38,298,606
UHI \| Warrants issued by UHI
Financial Instruments
Assets at fair value	36,395,183	38,298,606
UHI \| Recurring basis \| Warrants issued by UHI \| Available-for-sale financial assets
Financial Instruments
Assets at fair value	36,395,183	38,298,606
UHI \| Internal Models with Significant Unobservable Inputs (Level 3) \| Recurring basis \| Warrants issued by UHI \| Available-for-sale financial assets
Financial Instruments
Assets at fair value	$ 36,395,183	$ 38,298,606