INTANGIBLE ASSETS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Goodwill [Roll Forward]
Gross goodwill, beginning of period	$ 609,095
Accumulated impairment losses, beginning of period	(334,058)
Goodwill, net of accumulated impairment losses, beginning of period	275,037
Impairment loss relating to the Company's Clearview business	(10,347)
Gross goodwill, end of period	609,095
Accumulated impairment losses, end of period	(344,405)
Goodwill, net of accumulated impairment losses, end of period	264,690
Telecommunications Services [Member]
Goodwill [Roll Forward]
Gross goodwill, beginning of period	255,777
Accumulated impairment losses, beginning of period	0
Goodwill, net of accumulated impairment losses, beginning of period	255,777
Impairment loss relating to the Company's Clearview business	0
Gross goodwill, end of period	255,777
Accumulated impairment losses, end of period	0
Goodwill, net of accumulated impairment losses, end of period	255,777
Other [Member]
Goodwill [Roll Forward]
Gross goodwill, beginning of period	353,318
Accumulated impairment losses, beginning of period	(334,058)
Goodwill, net of accumulated impairment losses, beginning of period	19,260
Impairment loss relating to the Company's Clearview business	(10,347)
Gross goodwill, end of period	353,318
Accumulated impairment losses, end of period	(344,405)
Goodwill, net of accumulated impairment losses, end of period	8,913
Clearview Cinemas [Member]
Goodwill [Roll Forward]
Goodwill, net of accumulated impairment losses, end of period	$ 0