INTANGIBLE ASSETS AND GOODWILL (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018	Dec. 30, 2018
Intangible assets subject to amortization, gross
Balance at the beginning of the period			$ 838,336,000
Balance at the end of the period	$ 838,336,000		838,336,000		$ 838,336,000
Accumulated amortization
Balance at the beginning of the period			(807,725,000)
Amortization Expense	(276,000)	$ (11,895,000)	(23,878,000)	$ (35,858,000)
Balance at the end of the period	(831,603,000)		(831,603,000)		(807,725,000)
Intangible assets subject to amortization, net
Balance at the beginning of the period			30,611,000
Amortization Expense	(276,000)	(11,895,000)	(23,878,000)	(35,858,000)
Balance at the end of the period	6,733,000		6,733,000		30,611,000
Mastheads
Balance at the beginning of the period			112,736,000
Impairment Charges		(14,100,000)	(37,191,000)		(37,200,000)
Balance at the end of the period	75,545,000		75,545,000		112,736,000
Goodwill [Roll Forward]
Balance at the beginning of the period			705,174,000
Goodwill impairment charge		0	(258,079,000)	0
Balance at the end of the period	447,095,000		447,095,000		705,174,000
Total
Balance at the beginning of the period			848,521,000
Impairment Charges			(295,270,000)
Amortization Expense	(276,000)	$ (11,895,000)	(23,878,000)	$ (35,858,000)
Balance at the end of the period	529,373,000		$ 529,373,000		$ 848,521,000
Western
Goodwill [Roll Forward]
Goodwill impairment charge	(218,700,000)
Eastern
Goodwill [Roll Forward]
Goodwill impairment charge	$ (39,400,000)