Discontinued Operations (Narrative) (Details) (USD $)	3 Months Ended				12 Months Ended						3 Months Ended				9 Months Ended
	Dec. 29, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 28, 2014		Dec. 29, 2013		Dec. 30, 2012		Dec. 28, 2014	Dec. 30, 2012	Jun. 24, 2012	Mar. 25, 2012 Newspaper	Dec. 30, 2012
Discontinued operations
Gain on sale					$ (975,000)	[1]	$ 47,980,000	[1]	$ 91,234,000
(Loss)/gain on sale, net of income taxes					(1,086,000)		28,362,000		85,520,000
(Loss)/income from discontinued operations, net of income taxes	26,944,000	(18,987,000)	2,776,000	(2,785,000)	(1,086,000)		7,949,000		(27,927,000)
Impairment of assets					0	[2]	34,300,000	[2]	194,732,000	[3]
New England Media Group [Member]
Discontinued operations
Proceeds from the sale of discontinued operations	70,000,000
Net after-tax proceeds from sale, including tax benefit	74,000,000
Gain on sale					(349,000)	[1],[4]	47,561,000	[1],[4]	0
(Loss)/gain on sale, net of income taxes					(222,000)		28,104,000		0
(Loss)/income from discontinued operations, net of income taxes					(222,000)		5,194,000		(1,444,000)
Impairment of assets					0	[2]	34,300,000	[2]	0	[3]
About Group [Member]
Discontinued operations
Proceeds from the sale of discontinued operations												300,000,000
Net after-tax proceeds from sale, including tax benefit												291,000,000
Gain on sale					(229,000)	[1]	419,000	[1]	96,675,000			96,700,000
(Loss)/gain on sale, net of income taxes					(136,000)		258,000		61,890,000			61,900,000
Net working capital adjustment												17,000,000
Nominal loss from legal settlement											200,000
(Loss)/income from discontinued operations, net of income taxes					(136,000)		2,755,000		(48,947,000)
Impairment of assets					0	[2]	0	[2]	194,732,000	[3]
Impairment of goodwill													194,700,000
Regional Media Group [Member]
Discontinued operations
Proceeds from the sale of discontinued operations														140,000,000
Net after-tax proceeds from sale, including tax benefit														150,000,000
Gain on sale					(397,000)	[1]	0	[1]	(5,441,000)
(Loss)/gain on sale, net of income taxes					(728,000)		0		23,630,000					23,600,000
Number of newspapers, print publications and related businesses sold														16
(Loss)/income from discontinued operations, net of income taxes					(728,000)		0		22,464,000						(6,600,000)
Impairment of assets					0	[2]	0	[2]	0	[3]
Disposal Group, Including Discontinued Operation, Environmental Contingency Expense											400,000
Metro Boston LLC [Member]
Discontinued operations
Equity method investment, ownership percentage	49.00%				49.00%		49.00%				49.00%
Other Postretirement Benefit Plans, Defined Benefit [Member]
Discontinued operations
Effect of curtailment					0		49,122,000		27,213,000
Other Postretirement Benefit Plans, Defined Benefit [Member] | New England Media Group [Member]
Discontinued operations
Effect of curtailment							49,100,000				49,100,000
Other Postretirement Benefit Plans, Defined Benefit [Member] | Regional Media Group [Member]
Discontinued operations
Effect of curtailment														$ 27,200,000

[1] Included in the gain on sale in 2013 is a $49.1 million post-retirement curtailment gain related to the New England Media Group.

[2] Included in impairment of assets in 2013 is the impairment of fixed assets related to the New England Media Group.

[3] Included in impairment of assets in 2012 is the impairment of goodwill related to the About Group.

[4] The income tax benefit for the About Group in 2013 is related to a change in prior period estimated tax expense.