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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Segment Information - Additional Information (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) Segment Station	Sep. 30, 2014 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| Segment			3
Net revenue	$ 69,261	$ 62,274	$ 188,702	$ 176,776
Television
Segment Reporting Information [Line Items]
Net revenue	43,393	41,301	$ 119,292	122,193
Number of stations owned \| Station			58
Television \| Television Station Channel Modification
Segment Reporting Information [Line Items]
Net revenue	5,500		$ 10,500
Radio
Segment Reporting Information [Line Items]
Net revenue	$ 20,855	$ 18,081	$ 56,785	$ 51,691
Number of stations owned \| Station			49
Advertisements and Syndicate Radio Programming
Segment Reporting Information [Line Items]
Number of stations owned \| Station			350
Pulpo Media Inc
Segment Reporting Information [Line Items]
Business acquisition date			Jun. 18, 2014