INTANGIBLE ASSETS AND GOODWILL - Indefinite-lived (Details) - USD ($) $ in Thousands	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Indefinite lived intangible assets and goodwill
Goodwill, Gross	$ 3,571,111	$ 3,571,111
Original Gross Amount	4,255,611	4,255,611
Accumulated Impairment, Goodwill	(3,150,933)	(2,865,937)
Accumulated Impairment, Amount	(3,772,638)	(3,437,701)
Carrying Amount, Mastheads	62,795	112,736	$ 149,951
Goodwill	420,178	705,174	$ 705,174
Carrying Amount, Total	482,973	817,910
Newspaper mastheads
Indefinite lived intangible assets and goodwill
Original Gross Amount, Mastheads	684,500	684,500
Accumulated Impairment, Mastheads	(621,705)	(571,764)
Carrying Amount, Mastheads	$ 62,795	$ 112,736