INTANGIBLE ASSETS AND GOODWILL (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 29, 2019	Sep. 30, 2018	Dec. 29, 2019	Dec. 30, 2018
Intangible assets subject to amortization, gross
Balance at the beginning of the period			$ 838,336	$ 839,284
Disposition Adjustment				(948)
Balance at the end of the period			838,336	838,336
Accumulated amortization
Balance at the beginning of the period			(807,725)	(761,013)
Disposition Adjustment				948
Amortization Expense			(24,153)	(47,660)
Balance at the end of the period			(831,878)	(807,725)
Intangible assets subject to amortization, net
Balance at the beginning of the period			30,611	78,271
Amortization Expense			(24,153)	(47,660)
Balance at the end of the period			6,458	30,611
Mastheads
Balance at the beginning of the period			112,736	149,951
Impairment Charges	$ 37,200	$ 14,100	(49,941)	(37,215)
Balance at the end of the period			62,795	112,736
Goodwill [Roll Forward]
Balance at the beginning of the period			705,174	705,174
Impairment charges	$ (258,100)		(284,996)
Balance at the end of the period			420,178	705,174
Total
Balance at the beginning of the period			848,521	933,396
Impairment Charges			(334,937)	(37,215)
Amortization Expense			(24,153)	(47,660)
Balance at the end of the period			$ 489,431	$ 848,521