SEGMENT DATA Revenue by Type (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Net revenues	$ 138,851	$ 137,038	$ 469,009	$ 475,655
Television advertising [Member]
Segment Reporting Information [Line Items]
Net revenues	103,430	103,574	361,661	373,542
Carriage fees and subscriptions [Member]
Segment Reporting Information [Line Items]
Net revenues	29,568	28,168	88,357	85,044
Other revenue [Member]
Segment Reporting Information [Line Items]
Net revenues	$ 5,853	$ 5,296	$ 18,991	$ 17,069