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Non-controlling interest (Schedule of Non-controlling Interest Changes) (Details) - MXN ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disclosure of Non-controlling interest [Abstract] |  |  |
Balance at beginning of year | $ (108,572) | $ (105,186) |
Share of profits and losses for the year | (206,417) | (145) | $ 1,458,377
Share of translation effects of foreign subsidiaries | (8,380) | (3,241) |
Balance at the end of the year | $ (323,369) | $ (108,572) | $ (105,186)

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- Definition The amount of equity in a subsidiary not attributable, directly or indirectly, to a parent. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2018-01-01 -Paragraph 12 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_12_f&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 54 -Subparagraph q -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_54_q&doctype=Standard -URIDate 2018-03-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 10 -IssueDate 2018-01-01 -Paragraph 22 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=10&date=2018-03-01&anchor=para_22&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The profit (loss) from continuing and discontinued operations attributable to non-controlling interests. [Refer: Profit (loss); Non-controlling interests] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2018-01-01 -Paragraph 12 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_12_e&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 81B -Subparagraph a -Clause i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_81B_a_i&doctype=Standard -URIDate 2018-03-16 + Details
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- References No definition available. + Details
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- Definition Share of translation effects of foreign subsidiaries. + References No definition available. + Details
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