Nature of Business - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2015 Segment Station Location
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	3
Television
Segment Reporting Information [Line Items]
Number of stations owned	56
Radio
Segment Reporting Information [Line Items]
Number of stations owned	49
Radio operations stations, number of location | Location	18
Advertisements and Syndicate Radio Programming
Segment Reporting Information [Line Items]
Number of stations owned	350