GOODWILL AND INTANGIBLE ASSETS Other Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets, Gross	$ 352,232	$ 319,461
Finite-Lived Intangible Assets, Accumulated Amortization	(204,446)	(181,121)
Finite-Lived Intangible Assets, Net	147,786	138,340
Trademarks [Member]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	87,490	80,324
Finite-Lived Intangible Assets, Gross	638	591
Finite-Lived Intangible Assets, Accumulated Amortization	(638)	(591)
Finite-Lived Intangible Assets, Net	0	0
Broadcast Licenses [Member]
Finite-Lived Intangible Assets, Gross	206,536	185,686
Finite-Lived Intangible Assets, Accumulated Amortization	(148,517)	(130,325)
Finite-Lived Intangible Assets, Net	58,019	55,361
Customer Relationships [Member]
Finite-Lived Intangible Assets, Gross	55,909	51,338
Finite-Lived Intangible Assets, Accumulated Amortization	(53,825)	(48,997)
Finite-Lived Intangible Assets, Net	$ 2,084	2,341
Customer Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Assets, Useful Life (in years)	5 years
Customer Relationships [Member] | Maximum [Member]
Finite-Lived Intangible Assets, Useful Life (in years)	15 years
Other Intangible Assets [Member]
Finite-Lived Intangible Assets, Gross	$ 1,659	1,522
Finite-Lived Intangible Assets, Accumulated Amortization	(1,466)	(1,208)
Finite-Lived Intangible Assets, Net	$ 193	$ 314