Investments TV Food Network (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 29, 2015	Dec. 31, 2015
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 1,617,449		$ 1,668,316
Income on equity investments, net	38,252	$ 36,934
Distributions from equity investments	$ 89,346	94,906
Television Food Network, G.P.
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	31.00%
Equity method investments	$ 1,260,000		$ 1,314,000
Income on equity investments, net	34,000	29,000
Distributions from equity investments	89,000	95,000
Revenues, net	277,176	261,223
Operating income	181,996	130,202
Net income	$ 148,317	$ 133,643