ACQUISITIONS AND DISPOSITION OF ASSETS - Schedule of Assets and Liabilities Held For Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]
Non-current liabilities	$ 12,210	$ 0
Government Approval Disposal For Tribune Media Acquisition
Disposal Group, Including Discontinued Operation, Assets [Abstract]
Current assets	1,778
Property and equipment	17,537
Goodwill and indefinite-lived intangible assets	104,916
Definite-lived intangible assets	28,582
Other non-current assets	67
Assets held for sale	152,880
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]
Current liabilities	4,278
Non-current liabilities	7,932
Liabilities held for sale	$ 12,210