AFFILIATE AND RELATED PARTY TRANSACTIONS - Revenue and Related Charges (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Related Party Transactions [Abstract]
Revenue	$ 70	$ 545	$ 1,158	$ 1,397
Operating expenses:
Programming and other direct costs	(3,508)	(1,671)	(7,282)	(6,690)
Other operating expenses, net	(1,602)	(905)	(5,868)	(15,154)
Operating expenses, net	(5,110)	(2,576)	(13,150)	(21,844)
Net charges	(5,040)	(2,031)	(11,992)	(20,298)
Capital Expenditures	3,456	3,945	9,346	6,679
Related Party Transaction, Other Revenues from Transactions with Related Party	$ 0	$ 0	$ 0	$ 149