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GOODWILL AND RADIO BROADCASTING LICENSES (Details Textual) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017
Columbus and Houston Radio Broadcasting Licenses [Member]
Schedule Of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]
Pre Tax Impairment Charges	$ 16.4	$ 29.1

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