INTANGIBLE ASSETS AND GOODWILL (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 25, 2017	Jun. 26, 2016	Jun. 25, 2017	Jun. 26, 2016
Intangible assets subject to amortization, gross
Balance at the beginning of the period			$ 839,273,000
Acquisition adjustments			11,000
Balance at the end of the period	$ 839,284,000		839,284,000
Accumulated amortization
Balance at the beginning of the period			(711,723,000)
Amortization Expense	(12,093,000)	$ (11,996,000)	(24,176,000)	$ (23,994,000)
Balance at the end of the period	(735,899,000)		(735,899,000)
Intangible assets subject to amortization, net
Balance at the beginning of the period			127,550,000
Acquisition adjustments			11,000
Amortization Expense	(12,093,000)	(11,996,000)	(24,176,000)	(23,994,000)
Balance at the end of the period	103,385,000		103,385,000
Mastheads
Balance at the beginning of the period			171,436,000
Impairment Charges	0	0	0	0
Balance at the end of the period	171,436,000		171,436,000
Goodwill [Roll Forward]
Balance at the beginning of the period			705,174,000
Goodwill impairment charge	0	0	0	0
Balance at the end of the period	705,174,000		705,174,000
Total
Balance at the beginning of the period			1,004,160,000
Additions			11,000
Amortization Expense	(12,093,000)	$ (11,996,000)	(24,176,000)	$ (23,994,000)
Balance at the end of the period	$ 979,995,000		$ 979,995,000