Investments TV Food Network (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2015		Jun. 29, 2014		Jun. 30, 2015		Jun. 29, 2014	Dec. 28, 2014
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 1,642,737				$ 1,642,737			$ 1,689,996
Income on equity investments, net	45,913		$ 118,953		82,847		$ 157,216
Distributions from equity investments	$ 34,242	[1]	195,062	[1]	$ 129,148	[1]	155,730
Television Food Network, G.P.
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	31.30%				31.30%
Equity method investments	$ 1,289,000				$ 1,289,000			$ 1,354,000
Income on equity investments, net	36,000		35,000		66,000		64,000
Distributions from equity investments	34,000		35,000		129,000		155,000
Revenues, net	278,410		282,896		539,633		543,181
Operating income	151,728		147,825		282,026		273,320
Net income	$ 155,770		$ 153,000		$ 289,925		$ 282,872

[1] Cash distributions for the three and six months ended June 29, 2014 include $160 million of the Company’s share of the proceeds from the sale by CV of its Apartments.com business, which is reflected as an inflow from investing activities in the unaudited condensed consolidated statement of cash flows.