Accounts receivable - Net: (Details 2) - MXN ($) $ in Thousands	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Expected credit loss rate	15.00%		15.00%
Trade receivables	$ 991,033	$ 191,682	$ 858,900
Allowance account for credit losses of financial assets	179,639		$ 173,398
Mexico City [Member]
Trade receivables	131,248	164,332
Allowance account for credit losses of financial assets	129,299	164,332
Aerostar [Member]
Trade receivables	246,647	221,285
Allowance account for credit losses of financial assets	43,073	22,958
Airplan [Member]
Trade receivables	188,876	186,757
Allowance account for credit losses of financial assets	7,265	4,391
Due To Expire [Member]
Trade receivables	$ 386	279
Due To Expire [Member] \| Mexico City [Member]
Expected credit loss rate	0.02%
Trade receivables	$ 93
Due To Expire [Member] \| Aerostar [Member]
Expected credit loss rate	0.25%
Trade receivables	$ 154,235	111,731
Allowance account for credit losses of financial assets	$ 386	279
Due To Expire [Member] \| Airplan [Member]
Expected credit loss rate	0.88%
1 to 90 [Member]
Trade receivables	$ 1,737	1,776
1 to 90 [Member] \| Mexico City [Member]
Expected credit loss rate	0.02%
Trade receivables	$ 604
1 to 90 [Member] \| Aerostar [Member]
Expected credit loss rate	0.25%
Trade receivables	$ 49,645	62,764
Allowance account for credit losses of financial assets	$ 124	158
1 to 90 [Member] \| Airplan [Member]
Expected credit loss rate	0.88%
Trade receivables	$ 183,223	183,985
Allowance account for credit losses of financial assets	1,612	1,619
91 to 180 [Member]
Trade receivables	$ 36	4,282
91 to 180 [Member] \| Mexico City [Member]
Expected credit loss rate	0.02%
Trade receivables	$ 1,252
91 to 180 [Member] \| Aerostar [Member]
Expected credit loss rate	15.00%
Trade receivables	$ 239	28,549
Allowance account for credit losses of financial assets	$ 36	4,282
91 to 180 [Member] \| Airplan [Member]
Expected credit loss rate	0.88%
181 to 365 [Member]
Trade receivables	$ 11,938	39,874
181 to 365 [Member] \| Mexico City [Member]
Expected credit loss rate	100.00%
Trade receivables	$ 495	37,102
Allowance account for credit losses of financial assets	$ 495	37,102
181 to 365 [Member] \| Aerostar [Member]
Expected credit loss rate	100.00%
Trade receivables	$ 5,790
Allowance account for credit losses of financial assets	$ 5,790
181 to 365 [Member] \| Airplan [Member]
Expected credit loss rate	100.00%
Trade receivables	$ 5,653	2,772
Allowance account for credit losses of financial assets	5,653	2,772
365 [Member]
Trade receivables	$ 165,542	145,471
365 [Member] \| Mexico City [Member]
Expected credit loss rate	100.00%
Trade receivables	$ 128,804	127,230
Allowance account for credit losses of financial assets	$ 128,804	127,230
365 [Member] \| Aerostar [Member]
Expected credit loss rate	100.00%
Trade receivables	$ 36,738	18,240
Allowance account for credit losses of financial assets	$ 36,738	$ 18,240
365 [Member] \| Airplan [Member]
Expected credit loss rate	100.00%

The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2021-01-01
-Name IFRS
-Number 7
-IssueDate 2018-01-01
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-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_16&doctype=Standard&book=b
-URIDate 2018-03-16

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The rate of expected credit losses, calculated as percentage of the gross carrying amount. Expected credit losses are the weighted average of credit losses with the respective risks of a default occurring as the weights.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 7
-IssueDate 2018-01-01
-Paragraph IG20D
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_IG20D&doctype=Implementation%20Guidance
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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- Definition

The amount due from customers for goods and services sold.

+ References

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-Paragraph 78
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-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_78_b&doctype=Standard
-URIDate 2018-03-16

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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