Equity Method Investment (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013	Dec. 29, 2013
Schedule of Equity Method Investments [Line Items]
Interest in joint venture, Hub Television Networks, LLC. (in hundredths)	40.00%	50.00%	40.00%	50.00%
Earnings (loss) of joint venture	$ 1,892	$ (91)	$ 5,491	$ (1,024)
Investment in joint venture	258,295	329,722	258,295	329,722	321,876
Proceeds from partial sale of equity interest in joint venture			64,400	0
Net charges related to restructuring of the Company's investment in Hub Network	11,566		11,566
Option Agreement	25,590		25,590
Issuance of option agreement			(25,590)	0
Other Liabilities [Member]
Schedule of Equity Method Investments [Line Items]
Net charges related to restructuring of the Company's investment in Hub Network	$ 11,566		$ 11,566