Goodwill, Other Intangible Assets And Intangible Liabilities - Intangible liabilities subject to amortization (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 28, 2014
Schedule of Finite-Lived Intangible Liabilities [Line Items]
Gross Amount	$ 80,649	$ 102,582
Accumulated Amortization	(62,389)	(68,157)
Net Amount	18,260	34,425
Broadcast rights intangible liabilities
Schedule of Finite-Lived Intangible Liabilities [Line Items]
Gross Amount	80,440	102,373
Accumulated Amortization	(62,253)	(68,059)
Net Amount	18,187	34,314
Lease contract intangible liabilities
Schedule of Finite-Lived Intangible Liabilities [Line Items]
Gross Amount	209	209
Accumulated Amortization	(136)	(98)
Net Amount	$ 73	$ 111