Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 28, 2015	Dec. 28, 2014
Goodwill and Intangible Assets Disclosure [Line Items]
Goodwill	$ 4,525,618	$ 4,499,927
Customer Relationships
Goodwill and Intangible Assets Disclosure [Line Items]
Amortizable intangible assets	1,100,567	1,078,738
Amortizable intangible assets, accumulated amortization	256,326	212,438
Other
Goodwill and Intangible Assets Disclosure [Line Items]
Amortizable intangible assets	279,377	282,856
Amortizable intangible assets, accumulated amortization	71,557	53,289
Television Station FCC Licenses
Goodwill and Intangible Assets Disclosure [Line Items]
Indefinite-lived intangibles	1,191,950	1,191,950
Indefinite-lived intangibles (including goodwill), accumulated amortization	0	0
Mastheads and Trade Names
Goodwill and Intangible Assets Disclosure [Line Items]
Indefinite-lived intangibles	975,708	951,776
Indefinite-lived intangibles (including goodwill), accumulated amortization	0	0
Goodwill
Goodwill and Intangible Assets Disclosure [Line Items]
Goodwill	4,525,618	4,499,927
Indefinite-lived intangibles (including goodwill), accumulated amortization	$ 0	$ 0