GOODWILL, BROADCAST LICENCES AND OTHER INTANGIBLE ASSETS - Change in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	$ 2,378,126
Accumulated impairment losses, beginning balance	(413,573)
Goodwill, net	1,951,428	$ 1,964,553
Goodwill, Acquired During Period	1,514
Goodwill adjustment	(17,614)
Change is assets held for sale	2,975	2,975
Goodwill, gross, ending balance	2,365,001
Accumulated impairment losses, ending balance	(413,573)
Other operating divisions segment
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	513
Accumulated impairment losses, beginning balance	0
Goodwill, net	3,488	513
Goodwill, Acquired During Period	0
Goodwill adjustment	0
Change is assets held for sale	2,975
Goodwill, gross, ending balance	3,488
Accumulated impairment losses, ending balance	0
Broadcast
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	2,377,613
Accumulated impairment losses, beginning balance	(413,573)
Goodwill, net	1,947,940	$ 1,964,040
Goodwill, Acquired During Period	1,514
Goodwill adjustment	(17,614)
Change is assets held for sale	0
Goodwill, gross, ending balance	2,361,513
Accumulated impairment losses, ending balance	$ (413,573)