Intangible Assets and Goodwill (Details) (USD $) In Thousands, unless otherwise specified	Jun. 24, 2012	Dec. 25, 2011
Intangible assets and goodwill
Gross Amount	$ 834,961	$ 834,961
Accumulated Amortization	(480,948)	(452,388)
Intangible assets subject to amortization, net	354,013	382,573
Total	557,600	586,160
Goodwill	1,012,011	1,012,011
Total intangible assets and goodwill	1,569,611	1,598,171
Newspaper mastheads [Member]
Intangible assets and goodwill
Other intangible assets not subject to amortization	203,587	203,587
Advertiser and subscriber lists [Member]
Intangible assets and goodwill
Gross Amount	803,840	803,840
Accumulated Amortization	(449,935)	(421,392)
Intangible assets subject to amortization, net	353,905	382,448
Other [Member]
Intangible assets and goodwill
Gross Amount	31,121	31,121
Accumulated Amortization	(31,013)	(30,996)
Intangible assets subject to amortization, net	$ 108	$ 125