Goodwill, Other Intangible Assets And Intangible Liabilities - Changes in carrying amounts of intangible liabilities (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2015	Dec. 28, 2014
Finite-Lived Intangible Liabilities [Roll Forward]
Intangible liabilities subject to amortization, Balance at December 28, 2014		$ (34,425)
Intangible liabilities subject to amortization, Balance	(30,613)	(34,425)
Television and Entertainment
Finite-Lived Intangible Liabilities [Roll Forward]
Intangible liabilities subject to amortization, Balance at December 28, 2014	(34,425)
Amortization of intangible liabilities	3,812
Intangible liabilities subject to amortization, Balance	$ (30,613)