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Cash and cash equivalents:
12 Months Ended
Dec. 31, 2017
Cash and Cash Equivalents [Abstract]  
Disclosure of cash and cash equivalents [text block]
Note 5 - Cash and cash equivalents:
 
 
 
December 31,
 
 
 
 
 
 
 
 
 
 
 
2016
 
2017
 
 
 
 
 
 
 
 
 
Cash and cash held at banks
 
Ps
3,142,810
 
Ps
4,417,791
 
Short term investments
 
 
354,825
 
 
240,701
 
Fiduciary rights (*)
 
 
 
 
 
18,962
 
 
 
 
 
 
 
 
 
Total cash and cash equivalents
 
Ps
3,497,635
 
Ps
4,677,454
 
 
(*)       Corresponds to the Airplan Fiduciary's agreement 2875, signed with Fiduciaria Bancolombia to administer the resources of the concession contract. See Notes 8.2 and 18.5.
 
5.1) Restricted cash and cash equivalents
 
At December 31, 2017, restricted cash and cash equivalents includes Ps.106,350, which amount was collected by Aerostar from PFCs and are restricted to funding investment projects in airport infrastructure authorized by the FAA. See Notes 18.6 and 9.