MIAMI LAND AND BUILDING (Details 2) (USD $)	12 Months Ended
	Dec. 30, 2012	Dec. 25, 2011	Dec. 26, 2010
Relocation disclosures
Initial annual base operating lease payments	$ 10,798,000
Capital expenditures related to the new facilities incurred	34,788,000	16,984,000	15,628,000
Miami | Facility Relocation
Relocation disclosures
Cash expenses to relocate the Miami newspapers	12,000,000
Cash expenses incurred to relocate the Miami newspapers	4,500,000	900,000
Accelerated depreciation	13,000,000
Accelerated depreciation incurred	8,300,000
Office building | Miami
Relocation disclosures
Initial annual base operating lease payments	1,800,000
Estimated capital expenditures related to the new facilities	32,000,000
Capital expenditures related to the new facilities incurred	$ 17,500,000	$ 400,000