INTANGIBLE ASSETS AND GOODWILL (Details) $ in Thousands	3 Months Ended				12 Months Ended
	Jun. 30, 2016 number	Jun. 30, 2015 number	Jun. 30, 2014 number	Jun. 30, 2013 number	Dec. 31, 2016 USD ($) number	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Changes in broadcasting licenses [Line Items]
Beginning of period balance					$ 807,381	$ 718,992
Consolidation of a VIE					15,738	0
Impairment loss					0	0
Acquisition of radio stations					0	79,209
Assets held for sale					0	(1,397)
Deconsolidation of a subsidiary					(36)	(32,979)
Acquisition - other					112	100
Dispositions					0	(9,601)
Indefinitelived Intangible Assets Acquired Through Exchange					0	53,057
Ending period balance					$ 823,195	807,381
Market approach for step one goodwill analysis [Abstract]
Income model years used for the discounted cash flow approach | number					10
Changes in goodwill [Roll Forward]
Goodwill before cumulative loss on impairment						158,244	$ 164,465
Accumulated loss on impairment						(125,615)	$ (125,615)
Beginning balance after cumulative loss on impairment					$ 32,629	38,850
Loss on impairment during the year					0	0
Acquisition					0	5,866
Dispositions					(3)	(10,230)
Deconsolidation of a subsidiary					0	(759)
Goodwill Acquired Through Exchange					0	266
Adjustments to acquired goodwill					92	(1,364)
Ending balance					$ 32,718	$ 32,629
Broadcasting License Impairment Testing [Member]
Estimates and assumptions used for impairment test [Line Items]
Discount rates	9.50%	9.70%	9.60%	9.80%
Broadcasting License Impairment Testing [Member] | Maximum [Member]
Estimates and assumptions used for impairment test [Line Items]
Operating profit margin ranges of the markets of the Company	40.00%	40.00%	40.00%	41.00%
Long-term revenue growth rate ranges of the markets of the Company	2.00%	2.00%	2.00%	2.00%
Broadcasting License Impairment Testing [Member] | Minimum [Member]
Estimates and assumptions used for impairment test [Line Items]
Operating profit margin ranges of the markets of the Company	14.00%	25.00%	25.00%	25.00%
Long-term revenue growth rate ranges of the markets of the Company	1.00%	1.50%	1.50%	1.50%
Goodwill Impairment Testing [Member]
Estimates and assumptions used for impairment test [Line Items]
Discount rates	9.50%	9.70%	9.60%	9.80%
Goodwill Impairment Testing [Member] | Maximum [Member]
Estimates and assumptions used for impairment test [Line Items]
Long-term revenue growth rate ranges of the markets of the Company	2.00%	2.00%	2.00%	2.00%
Market approach for step one goodwill analysis [Abstract]
Estimates of market multiples | number	8	8	8	8
Goodwill Impairment Testing [Member] | Minimum [Member]
Estimates and assumptions used for impairment test [Line Items]
Long-term revenue growth rate ranges of the markets of the Company	1.00%	1.50%	1.50%	1.50%
Market approach for step one goodwill analysis [Abstract]
Estimates of market multiples | number	7.5	7.5	7.5	7.5