Segment Information - Operating Segments, Profit (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating income
Operating income (loss)	$ (17,636)	$ 20,647
Corporate and other expenses	(10,352)	(12,651)
Depreciation and amortization	(40,121)	(40,283)
Merger-related expenses	(65,882)	(5,277)
Restructuring expenses	(3,982)	0
Operating Segments [Member]
Operating income
Operating income (loss)	101,933	78,630
Operating Segments [Member] | Broadcast [Member]
Operating income
Operating income (loss)	103,618	80,821
Operating Segments [Member] | Digital [Member]
Operating income
Operating income (loss)	(1,685)	(2,191)
Corporate [Member]
Operating income
Corporate and other expenses	(10,352)	(12,651)
Segment Reconciling Items [Member]
Operating income
Depreciation and amortization	(40,121)	(40,283)
Gain related to property and equipment, net	768	228
Merger-related expenses	(65,882)	(5,277)
Restructuring expenses	$ (3,982)	$ 0