OTHER CURRENT LIABILITIES (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Accounts Payable and Accrued Liabilities, Current [Abstract]
Accrued compensation	$ 25,264	$ 28,871
Accounts receivable credits	1,683	3,798
Advertiser obligations	4,844	4,095
Accrued interest payable	9,804	9,882
Unearned revenue	15,651	9,894
Unfavorable sports liabilities	4,634	4,634
Accrued benefits	6,944	6,321
Non-income tax liabilities	1,332	1,685
Income taxes payable	0	3,925
Other	3,841	3,732
Total other current liabilities	$ 73,997	$ 76,837