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Accounts payable and accrued expenses: (Tables) | 12 Months Ended
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Dec. 31, 2017
Trade and other payables [abstract] |
Disclosure of Detailed Information on Accounts payable and accrued expenses [text block] | At December 31, 2016 and 2017, the balances are as follows:
|  | December 31, |
|  | 2016 |  | 2017 |
Suppliers |  | Ps | 11,401 |  | Ps | 428,881 |
Taxes payable |  |  | 116,643 |  |  | 157,387 |
Use rights of assets under concession |  |  | 109,437 |  |  | 127,076 |
Accounts payable to related parties (Note 15.1) |  |  | 71,725 |  |  | 87,951 |
Salaries payable |  |  | 71,022 |  |  | 111,984 |
Sundry creditors for services provided |  |  | 94,349 |  |  | 583,059 |
Interest payable of the Bank Loans (Note 12) |  |  |  |  |  | 340,288 |
Accounts payable to contractors |  |  | 657 |  |  | 265,236 |
Total |  | Ps | 475,234 |  | Ps | 2,101,862 |

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- Definition The detailed information about the accounts payable and the other accrued expenses + References No definition available. + Details
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- References No definition available. + Details
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Period Type: | duration