PROPERTY AND EQUIPMENT (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment, Gross, Total	$ 264,200	$ 258,814
Less accumulated depreciation	(164,720)	(156,024)
Property, Plant and Equipment, Net, Total	99,480	102,790
Land [Member]
Property, Plant and Equipment, Gross, Total	32,320	32,402
Building [Member]
Property, Plant and Equipment, Gross, Total	28,962	29,070
Office furnishings and equipment [Member]
Property, Plant and Equipment, Gross, Total	37,583	37,386
Office Furnishings And Equipment Under Capital Lease Obligations [Member]
Property, Plant and Equipment, Gross, Total	244	228
Antennae, towers and transmitting equipment
Property, Plant and Equipment, Gross, Total	85,632	84,144
Antennae Towers And Transmitting Equipment Under Capital Lease Obligations [Member]
Property, Plant and Equipment, Gross, Total	795	795
Studio, production and mobile equipment
Property, Plant and Equipment, Gross, Total	29,697	28,668
Computer Software [Member]
Property, Plant and Equipment, Gross, Total	24,477	20,042
Record and tape libraries [Member]
Property, Plant and Equipment, Gross, Total	27	27
Automobiles [Member]
Property, Plant and Equipment, Gross, Total	1,385	1,373
Leasehold Improvements [Member]
Property, Plant and Equipment, Gross, Total	19,003	14,696
Construction in Progress [Member]
Property, Plant and Equipment, Gross, Total	$ 4,075	$ 9,983

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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-Publisher FASB
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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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