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INTANGIBLE ASSETS AND GOODWILL (Details) $ in Thousands	3 Months Ended				12 Months Ended
INTANGIBLE ASSETS AND GOODWILL (Details) $ in Thousands	Jun. 30, 2015 number	Jun. 30, 2014 number	Jun. 30, 2013 number	Jun. 30, 2012 number	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Changes in goodwill [Roll Forward]
Goodwill before cumulative loss on impairment						$ 164,465	$ 164,465
Accumulated loss on impairment						(125,615)	$ (125,615)
Beginning balance after cumulative loss on impairment					$ 38,850	38,850
Loss on impairment during the year					0	0
Acquisition					5,866	0
Dispositions					(10,230)	0
Deconsolidation of a subsidiary					(759)	0
Goodwill Acquired Through Exchange					266	0
Adjustments to acquired goodwill					(1,364)	0
Ending balance					32,629	38,850
Broadcasting License Impairment Testing [Member]
Estimates and assumptions used for impairment test [Line Items]
Discount rates	9.70%	9.60%	9.80%	10.00%
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%	41.00%	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	25.00%	25.00%	25.00%	21.00%
Long-term revenue growth rate ranges of the markets of the Company	1.50%	1.50%	1.50%	1.50%
Goodwill Impairment Testing [Member]
Estimates and assumptions used for impairment test [Line Items]
Discount rates	9.70%	9.60%	9.80%	10.00%
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	1.50%	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
Radio Broadcasting Licences [Member]
Changes in broadcasting licenses [Line Items]
Impairment loss					0	0
Acquisition of radio stations					79,209	0
Assets held for sale					(1,397)	0
Deconsolidation of a subsidiary					(32,979)	0
Acquisition - other					100	450
Dispositions					(9,601)	0
Indefinitelived Intangible Assets Acquired Through Exchange					$ 53,057	$ 0