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Segment Information - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Segment
Mar. 31, 2014
Segment Reporting Information [Line Items]    
Number of reportable segments 3us-gaap_NumberOfReportableSegments  
Net revenue $ 59,550us-gaap_Revenues $ 52,656us-gaap_Revenues
Television    
Segment Reporting Information [Line Items]    
Net revenue 39,502us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= evc_TelevisionMember		 37,741us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= evc_TelevisionMember
Number of stations owned 58evc_NumberOfStationsOwned
/ us-gaap_StatementBusinessSegmentsAxis
= evc_TelevisionMember		  
Television | Television Station Channel Modification    
Segment Reporting Information [Line Items]    
Net revenue 5,000us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= evc_TelevisionMember
/ us-gaap_SubsegmentsAxis
= evc_TelevisionStationChannelModificationMember		  
Radio    
Segment Reporting Information [Line Items]    
Net revenue $ 16,345us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= evc_RadioMember		 $ 14,915us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= evc_RadioMember
Number of stations owned 49evc_NumberOfStationsOwned
/ us-gaap_StatementBusinessSegmentsAxis
= evc_RadioMember		  
Advertisements and Syndicate Radio Programming    
Segment Reporting Information [Line Items]    
Number of stations owned 350evc_NumberOfStationsOwned
/ us-gaap_StatementBusinessSegmentsAxis
= evc_AdvertisementsAndSyndicateRadioProgrammingMember		  
Pulpo Media Inc    
Segment Reporting Information [Line Items]    
Business acquisition date Jun. 18, 2014