Goodwill, Other Intangible Assets And Intangible Liabilities - (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Dec. 28, 2014
Indefinite-lived Intangible Assets [Line Items]
Other intangible assets not subject to amortization	$ 801,400	$ 801,400
Total other intangible assets, net (excluding goodwill)	2,296,033	2,397,794
Goodwill	3,945,265	3,918,136
Total goodwill and other intangible assets	6,241,298	6,315,930
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	1,900,720	1,855,483
Intangible assets, accumulated amortization	(406,087)	(259,089)
Intangible assets subject to amortization, net	1,494,633	1,596,394
Television and Entertainment
Indefinite-lived Intangible Assets [Line Items]
Other intangible assets not subject to amortization	801,400	801,400
Goodwill	3,601,300	3,601,300
Total goodwill and other intangible assets	5,629,737
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, net	1,227,037	1,352,867
Digital and Data
Indefinite-lived Intangible Assets [Line Items]
Other intangible assets not subject to amortization	0	0
Goodwill	343,965	316,836
Total goodwill and other intangible assets	611,561
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, net	267,596	243,527
FCC Licenses
Indefinite-lived Intangible Assets [Line Items]
Other intangible assets not subject to amortization	786,600	786,600
Trade Names
Indefinite-lived Intangible Assets [Line Items]
Other intangible assets not subject to amortization	14,800	14,800
Affiliate Relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	212,000	212,000
Intangible assets, accumulated amortization	(36,438)	(26,500)
Intangible assets subject to amortization, net	$ 175,562	185,500
Affiliate Relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	16 years
Affiliate Relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	16 years
Advertiser relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 168,000	168,000
Intangible assets, accumulated amortization	(57,750)	(42,000)
Intangible assets subject to amortization, net	$ 110,250	126,000
Advertiser relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	8 years
Advertiser relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	8 years
Network Affiliation Agreements
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 362,000	362,000
Intangible assets, accumulated amortization	(81,710)	(50,485)
Intangible assets subject to amortization, net	$ 280,290	311,515
Network Affiliation Agreements | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	5 years
Network Affiliation Agreements | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	16 years
Retransmission Consent Agreements
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 830,100	830,100
Intangible assets, accumulated amortization	(174,445)	(106,897)
Intangible assets subject to amortization, net	$ 655,655	723,203
Retransmission Consent Agreements | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	7 years
Retransmission Consent Agreements | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	12 years
Other customer relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 115,341	99,528
Intangible assets, accumulated amortization	(20,529)	(12,632)
Intangible assets subject to amortization, net	$ 94,812	86,896
Other customer relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	3 years
Other customer relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	16 years
Content databases
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 135,307	122,400
Intangible assets, accumulated amortization	(20,947)	(13,001)
Intangible assets subject to amortization, net	$ 114,360	109,399
Content databases | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	5 years
Content databases | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	16 years
Technology-Based Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 47,550	41,385
Intangible assets, accumulated amortization	(8,266)	(4,022)
Intangible assets subject to amortization, net	$ 39,284	37,363
Technology-Based Intangible Assets | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	4 years
Technology-Based Intangible Assets | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	10 years
Trademarks and Trade Names
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 14,020	9,300
Intangible assets, accumulated amortization	(1,339)	(597)
Intangible assets subject to amortization, net	$ 12,681	8,703
Trademarks and Trade Names | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	3 years
Trademarks and Trade Names | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	15 years
Other Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 16,402	10,770
Intangible assets, accumulated amortization	(4,663)	(2,955)
Intangible assets subject to amortization, net	$ 11,739	$ 7,815
Other Intangible Assets | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	3 years
Other Intangible Assets | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	11 years