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Income Taxes - Additional Information (Detail) - MXN ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Effective income tax rate for foreign jurisdiction | 40.00% | 31.00% | 15.00%
Percentage of share with voting right | 80.00% |  |
Brazil [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Net operating loss carryforwards | $ 52,118,464 |  |
Effective taxable income percentage carryforward | 30.00% |  |
Effective taxable income percentage | 25.00% |  |
Corporate tax rate | 34.00% |  |
Austria [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Net operating loss carryforwards | $ 14,470,465 |  |
operating loss carryforward effective tax rate annual limit | 75.00% |  |
Mexico [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Accumulated tax loss | $ 13,980,757 |  |
Bottom of range [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Statutory tax rates | 21.00% |  |
Top of range [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Statutory tax rates | 40.00% |  |
CUCA [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Contributed capital account | $ 551,221,490 | $ 536,278,717 |
CUFIN [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Contributed capital account | $ 320,880,512 | $ 276,185,284 |

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- Definition effective income tax rate maximum limit. + References No definition available. + Details
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