Related-Party Transactions - Summary of Related-Party Balances with Univision and Other Related Parties (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Schedule Of Other Related Party Transactions [Line Items]
Trade receivables	$ 64,956us-gaap_AccountsReceivableNetCurrent	$ 57,043us-gaap_AccountsReceivableNetCurrent
Other current assets	5,295	4,087
Intangible assets subject to amortization, net	20,193us-gaap_FiniteLivedIntangibleAssetsNet	19,812us-gaap_FiniteLivedIntangibleAssetsNet
Advances payable	118us-gaap_DueToRelatedPartiesCurrent	118us-gaap_DueToRelatedPartiesCurrent
Accounts payable	32,195	31,246
Direct operating expenses	107,281us-gaap_DirectOperatingCosts	103,686us-gaap_DirectOperatingCosts	92,256us-gaap_DirectOperatingCosts
Amortization	14,663us-gaap_DepreciationAndAmortization	14,953us-gaap_DepreciationAndAmortization	16,426us-gaap_DepreciationAndAmortization
Univision
Schedule Of Other Related Party Transactions [Line Items]
Trade receivables	10,882	7,102
Intangible assets subject to amortization, net	16,239	18,559
Accounts payable	3,695	3,994
Direct operating expenses	10,655	10,322	10,599
Amortization	2,320	2,321	2,633
Other
Schedule Of Other Related Party Transactions [Line Items]
Other current assets	274	274
Advances payable	118	118
Related Parties
Schedule Of Other Related Party Transactions [Line Items]
Trade receivables	10,882	7,102
Other current assets	274	274
Intangible assets subject to amortization, net	16,239	18,559
Advances payable	118	118
Accounts payable	3,695	3,994
Direct operating expenses	10,655	10,322	10,599
Amortization	$ 2,320	$ 2,320	$ 2,633

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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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