PROPERTY, PLANT AND EQUIPMENT, INTANGIBLE ASSETS AND GOODWILL - Schedule Of Property, Plant And Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 924,570	$ 1,428,902
Less: accumulated depreciation	77,694	926,700
Property, plant and equipment, net	846,876	502,202
Land, buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	385,017	427,501
Towers, transmitters and studio equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	156,739	365,991
Furniture and other equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	361,527	591,601
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 21,287	$ 43,809