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Critical Accounting Estimates and Assumptions (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
MXN ($)
Critical Accounting Estimates and Assumptions  
Expected Future Benefit Period 5 years
Percentage Of Production Cost Expensed 70.00%
Decrease in expected future revenue 10.00%
Expected Decrease In Revenue $ 222,330
Expected increase in programming amortization expense $ 222,330