Subsequent Events (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended				0 Months Ended			12 Months Ended
	Dec. 25, 2011	Sep. 25, 2011	Jun. 26, 2011	Mar. 27, 2011	Dec. 26, 2010	Sep. 26, 2010	Jun. 27, 2010	Mar. 28, 2010	Dec. 25, 2011	Dec. 26, 2010	Dec. 27, 2009	Dec. 25, 2011 Fenway Sports Group [Member]	Feb. 03, 2012 Sale of Equity Method Investment [Member]	Feb. 03, 2012 Sale of Equity Method Investment [Member] Fenway Sports Group [Member]	Jan. 06, 2012 Sale of Business [Member] Regional Media Group [Member]	Dec. 25, 2011 Sale of Business [Member] Regional Media Group [Member]	Dec. 26, 2010 Sale of Business [Member] Regional Media Group [Member]	Dec. 27, 2009 Sale of Business [Member] Regional Media Group [Member]
Subsequent Event [Line Items]
Units sold in Fenway Sports Group		390					50							100
Proceeds from sale of investments		$ 117,000							$ (117,966)	$ (9,254)	$ 1,338			$ (30,000)
Gain on sale of investments	0	65,273	0	5,898	0	0	9,128	0	71,171	9,128	0			18,000
Units owned in Fenway Sports Group after sale		310											210
Equity method investment, ownership percentage												7.30%		4.97%
Discontinued Operations [Abstract]
Number of newspapers, print bublications and related businesses sold															16
Proceeds from the sale of businesses									0	0	45,424				143,000
Disposal group, not discontinued operation, gain on disposal															30,000
Disposal group, not discontinued operation, total expected cash proceeds, net of tax															150,000
Disposal Group, Not Discontinued Operation, Income Statement Disclosures [Abstract]
Revenues	642,960	537,235	576,702	566,504	661,676	554,333	589,587	587,867	2,323,401	2,393,463	2,440,439					259,945	276,659	296,923
Production cost and selling, general and administrative costs										0	7,082					223,367	236,699	257,710
Total operating costs	528,679	504,190	525,233	535,430	550,032	522,924	528,762	535,209	2,093,532	2,136,927	2,307,800					235,032	249,354	272,603
Depreciation and amortization									116,454	120,950	133,696					11,665	12,655	14,893
Impairment of assets	3,116	0	161,318	0	0	16,148	0	0	164,434	16,148	4,179					152,093	0	0
Gain on sale of assets									0	0	5,198					0	0	5,198
Pre-tax (loss)/income	106,665	33,045	(114,077)	31,074	111,644	8,993	60,825	52,658	56,707	234,120	74,059					(127,180)	27,305	29,518
Income tax expense	36,353	15,362	(16,615)	1,406	18,072	(2,018)	25,435	27,027	36,506	68,516	2,206					(10,879)	10,783	13,122
(Loss)/income from continuing operations					67,099	(4,134)	31,582	14,158	(40,224)	108,705	1,569					(116,301)	16,522	16,396
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]
Accounts receivable, net, current	288,355				302,245				288,355	302,245						26,550	27,417
Property, plant and equipment, net	1,085,190				1,156,786				1,085,190	1,156,786						146,287	157,603
Goodwill	488,894				644,464				488,894	644,464	652,196					0	152,093
Other assets, noncurrent	180,860				201,502				180,860	201,502						5,344	7,299
Assets	2,883,450				3,285,741				2,883,450	3,285,741	3,088,557					178,181	344,412
Liabilities, current	513,308				504,377				513,308	504,377						19,568	22,016
Net assets																$ 158,613	$ 322,396