IMPAIRMENT LOSS (Details) - USD ($) $ in Thousands	3 Months Ended							12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Broadcasting licenses								$ 0	$ 261,929	$ 0
Goodwill							$ 537,400	0	0	537,353
ROU Asset		$ 100	$ 200	$ 300		$ 1,100	6,000	556	1,064	5,956
Property and equipment and other	$ 900				$ 1,400		$ 2,200	1,658	1,439	2,148
Total								$ 2,214	$ 264,432	$ 545,457