Goodwill, Other Intangible Assets and Intangible Liabilities - Goodwill, other Intangible Assets and Intangible Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 28, 2014
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 1,587,548	$ 1,589,032
Finite-Lived Intangible Assets, Accumulated Amortization	(562,414)	(396,430)
Finite-Lived Intangible Assets, Net	1,025,134	1,192,602	$ 1,352,867
Other intangible assets not subject to amortization	794,000	797,400	801,400
Total other intangible assets, net	1,819,134	1,990,002
Goodwill	3,227,930	3,228,224	$ 3,601,300
Total goodwill and other intangible assets	5,047,064	5,218,226
FCC licenses
Finite-Lived Intangible Assets [Line Items]
Other intangible assets not subject to amortization	779,200	782,600
Trade name
Finite-Lived Intangible Assets [Line Items]
Other intangible assets not subject to amortization	14,800	14,800
Affiliate relationships
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	212,000	212,000
Finite-Lived Intangible Assets, Accumulated Amortization	(53,000)	(39,750)
Finite-Lived Intangible Assets, Net	$ 159,000	172,250
Affiliate relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life (years)	16 years
Affiliate relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life (years)	16 years
Advertiser relationships
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 168,000	168,000
Finite-Lived Intangible Assets, Accumulated Amortization	(84,000)	(63,000)
Finite-Lived Intangible Assets, Net	$ 84,000	105,000
Advertiser relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life (years)	8 years
Advertiser relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life (years)	8 years
Network affiliation agreements
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 362,000	362,000
Finite-Lived Intangible Assets, Accumulated Amortization	(133,725)	(92,113)
Finite-Lived Intangible Assets, Net	$ 228,275	269,887
Network affiliation agreements | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life (years)	5 years
Network affiliation agreements | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life (years)	16 years
Retransmission consent agreements
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 830,100	830,100
Finite-Lived Intangible Assets, Accumulated Amortization	(286,994)	(196,955)
Finite-Lived Intangible Assets, Net	$ 543,106	633,145
Retransmission consent agreements | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life (years)	7 years
Retransmission consent agreements | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life (years)	12 years
Trade names and trademarks
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 4,802	4,573
Finite-Lived Intangible Assets, Accumulated Amortization	(516)	(200)
Finite-Lived Intangible Assets, Net	$ 4,286	4,373
Trade names and trademarks | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life (years)	15 years
Trade names and trademarks | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life (years)	15 years
Other
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 10,646	12,359
Finite-Lived Intangible Assets, Accumulated Amortization	(4,179)	(4,412)
Finite-Lived Intangible Assets, Net	$ 6,467	$ 7,947
Other | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life (years)	5 years
Other | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life (years)	12 years