Investments TV Food Network (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 28, 2014	Sep. 30, 2015	Sep. 28, 2014	Dec. 28, 2014
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 1,645,979		$ 1,645,979		$ 1,689,996
Income on equity investments, net	$ 36,987	$ 40,559	119,834	$ 197,775
Distributions from equity investments			$ 156,395	173,420
Television Food Network, G.P.
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	31.30%		31.30%
Equity method investments	$ 1,300,000		$ 1,300,000		$ 1,354,000
Income on equity investments, net	26,000	26,000	92,000	89,000
Distributions from equity investments	16,000	18,000	145,000	173,000
Revenues, net	264,997	254,479	804,630	797,660
Operating income	123,579	121,334	405,605	394,654
Net income	$ 124,347	$ 122,548	$ 414,272	$ 405,420