GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS - Cable Television Segment Goodwill (Details) - USD ($)			12 Months Ended
	Oct. 01, 2021	Oct. 01, 2020	Dec. 31, 2021	Dec. 31, 2020
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Pre Tax Impairment Charges			$ 0	$ 84,400,000
Cable Television Segment Goodwill [Member]
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Pre Tax Impairment Charges	$ 0	$ 0
Discount Rate	9.50%	10.50%
Year 1 Revenue Growth Rate	11.60%	4.50%
Cable Television Segment Goodwill [Member] | Maximum
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Long-term Revenue Growth Rate Range (Years 6 - 10)	0.60%	1.50%
Operating Profit Margin Range	46.40%	46.10%
Long-term market revenue growth rate period	10 years	10 years
Cable Television Segment Goodwill [Member] | Minimum
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Long-term Revenue Growth Rate Range (Years 6 - 10)	0.40%	0.60%
Operating Profit Margin Range	34.90%	37.20%
Long-term market revenue growth rate period	6 years	6 years