Related-Party Transactions - Summary of Related-Party Balances with Univision and Other Related Parties (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Related Party Transaction [Line Items]
Trade receivables	$ 65,072	$ 66,399
Other current assets	4,870	5,705
Intangible assets subject to amortization, net	13,120	16,656
Accounts payable	30,810	29,787
Direct operating expenses	113,439	110,323	$ 104,874
Amortization	15,342	15,989	14,663
Univision
Related Party Transaction [Line Items]
Trade receivables	7,357	5,534
Intangible assets subject to amortization, net	11,598	13,918
Accounts payable	3,768	3,791
Direct operating expenses	10,302	9,306	10,655
Amortization	2,320	2,321	2,320
Other
Related Party Transaction [Line Items]
Other current assets	274	274
Accounts payable	118	118
Related Parties
Related Party Transaction [Line Items]
Trade receivables	7,357	5,534
Other current assets	274	274
Intangible assets subject to amortization, net	11,598	13,918
Accounts payable	3,886	3,909
Direct operating expenses	10,302	9,306	10,655
Amortization	$ 2,320	$ 2,321	$ 2,320

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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