Other Postretirement Benefits - Other Information (Details) (USD $)	1 Months Ended			3 Months Ended	12 Months Ended			3 Months Ended
	Oct. 31, 2011	Dec. 29, 2013	Dec. 30, 2012	Mar. 25, 2012 Other Postretirement Benefit Plans, Defined Benefit [Member]	Dec. 29, 2013 Other Postretirement Benefit Plans, Defined Benefit [Member]	Dec. 30, 2012 Other Postretirement Benefit Plans, Defined Benefit [Member]	Dec. 25, 2011 Other Postretirement Benefit Plans, Defined Benefit [Member]	Dec. 29, 2013 New England Media Group [Member] Other Postretirement Benefit Plans, Defined Benefit [Member]
Other Postretirement Benefits
Effect of curtailment				$ 27,200,000	$ 49,122,000	$ 27,213,000	$ 0	$ 49,100,000
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Plan Amendments, Tax Effect	20,000,000
Postemployment benefits liability		$ 16,200,000	$ 19,900,000