GOODWILL AND INTANGIBLE ASSETS Intangibles Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets, Gross	$ 369,039	$ 314,166
Finite-Lived Intangible Assets, Accumulated Amortization	(220,804)	(179,461)
Intangible Asset [Roll Forward]
Finite Lived Intangible Asset Net Beginning Balance	134,705
Finite Lived Intangible Asset Net Ending Balance	148,235
Trademarks [Member]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	$ 87,900	76,731
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	$ 1,753	1,522
Finite-Lived Intangible Assets, Accumulated Amortization	(1,567)	(1,208)
Intangible Asset [Roll Forward]
Finite Lived Intangible Asset Net Beginning Balance	314
Finite Lived Intangible Asset Net Ending Balance	186
Customer Relationships [Member]
Finite-Lived Intangible Assets, Gross	58,771	51,338
Finite-Lived Intangible Assets, Accumulated Amortization	(56,996)	(48,997)
Intangible Asset [Roll Forward]
Finite Lived Intangible Asset Net Beginning Balance	2,341
Finite Lived Intangible Asset Net Ending Balance	1,775
Trademarks [Member]
Finite-Lived Intangible Assets, Gross	421	380
Finite-Lived Intangible Assets, Accumulated Amortization	(421)	(380)
Intangible Asset [Roll Forward]
Finite Lived Intangible Asset Net Beginning Balance	0
Finite Lived Intangible Asset Net Ending Balance	0
Operating and Broadcast Rights [Member]
Finite-Lived Intangible Assets, Gross	220,194	184,195
Finite-Lived Intangible Assets, Accumulated Amortization	(161,820)	$ (128,876)
Intangible Asset [Roll Forward]
Finite Lived Intangible Asset Net Beginning Balance	55,319
Finite Lived Intangible Asset Net Ending Balance	$ 58,374