Discontinued Operations (Narrative) (Details) $ in Thousands		3 Months Ended								9 Months Ended	12 Months Ended
		Dec. 28, 2014 USD ($)	Sep. 28, 2014 USD ($)	Jun. 29, 2014 USD ($)	Mar. 30, 2014 USD ($)	Dec. 29, 2013 USD ($)	Mar. 31, 2013 USD ($)	Dec. 30, 2012 USD ($)	Mar. 25, 2012 USD ($) Newspaper	Dec. 30, 2012 USD ($)	Dec. 27, 2015 USD ($)	Dec. 28, 2014 USD ($)		Dec. 29, 2013 USD ($)		Dec. 30, 2012 USD ($)
Discontinued operations
Income tax expense												$ 111		$ 19,618
Loss/(gain) on sales of New England Media Group & About Group	[1]											(975)		47,980
(Loss)/gain on sale, net of income taxes											$ 0	(1,086)		28,362
Loss from discontinued operations, net of income taxes		$ (92)	$ 0	$ 0	$ (994)						0	(1,086)		7,949
Impairment of assets	[2]											0		34,300
New England Media Group [Member]
Discontinued operations
Income tax expense												(127)		19,457
Proceeds from the sale of discontinued operations						$ 70,000
Net after-tax proceeds from sale, including tax benefit						$ 74,000
Loss/(gain) on sales of New England Media Group & About Group	[1],[3]											(349)		47,561
(Loss)/gain on sale, net of income taxes												(222)		28,104
Loss from discontinued operations, net of income taxes												(222)		5,194
Impairment of assets	[2]											0		34,300
About Group [Member]
Discontinued operations
Income tax expense												(93)		161
Proceeds from the sale of discontinued operations								$ 300,000
Net after-tax proceeds from sale, including tax benefit								291,000
Loss/(gain) on sales of New England Media Group & About Group								96,700				(229)	[1]	419	[1]
(Loss)/gain on sale, net of income taxes								61,900				(136)		258
Net working capital adjustment								$ 17,000
Loss from legal settlement		200
Loss from discontinued operations, net of income taxes												(136)		2,755
Impairment of assets	[2]											0		$ 0
Regional Media Group [Member]
Discontinued operations
Income tax expense							$ 0					331
Proceeds from the sale of discontinued operations									$ 140,000
Net after-tax proceeds from sale, including tax benefit																$ 150,000
Loss/(gain) on sales of New England Media Group & About Group	[1]						0					(397)
(Loss)/gain on sale, net of income taxes							0					(728)				$ 23,600
Number of newspapers, print publications and related businesses sold | Newspaper									16
Loss from discontinued operations, net of income taxes							0			$ (6,600)		(728)
Impairment of assets	[2]						$ 0					0
Loss from environmental contingency		$ 400
Metro Boston LLC [Member]
Discontinued operations
Equity method investment, ownership percentage						49.00%								49.00%
Other Postretirement Benefit Plans, Defined Benefit [Member]
Discontinued operations
Effect of curtailment											$ 0	$ 0		$ 49,122
Other Postretirement Benefit Plans, Defined Benefit [Member] | New England Media Group [Member]
Discontinued operations
Effect of curtailment														$ 49,100

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