Goodwill, Other Intangible Assets And Intangible Liabilities - Intangible liabilities subject to amortization (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 28, 2014
Schedule of Finite-Lived Intangible Liabilities [Line Items]
Gross Amount	$ (91,488)	$ (102,582)
Accumulated Amortization	64,846	68,157
Net Amount	(26,642)	(34,425)
Broadcast rights intangible liabilities
Schedule of Finite-Lived Intangible Liabilities [Line Items]
Gross Amount	(91,279)	(102,373)
Accumulated Amortization	64,723	68,059
Net Amount	(26,556)	(34,314)
Lease contract intangible liabilities
Schedule of Finite-Lived Intangible Liabilities [Line Items]
Gross Amount	(209)	(209)
Accumulated Amortization	123	98
Net Amount	$ (86)	$ (111)