SEGMENT INFORMATION, Capital Expenditures by Reportable Segment (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Segment Reporting Information, Capital Expenditures [Abstract]
Capital expenditures	$ 204,752	$ 245,094	$ 629,945	$ 740,944
Reportable Segments [Member] | Cable [Member]
Segment Reporting Information, Capital Expenditures [Abstract]
Capital expenditures	168,446	209,224	521,026	630,591
Reportable Segments [Member] | Lightpath [Member]
Segment Reporting Information, Capital Expenditures [Abstract]
Capital expenditures	28,434	29,211	81,401	81,949
Reportable Segments [Member] | Other [Member]
Segment Reporting Information, Capital Expenditures [Abstract]
Capital expenditures	$ 7,872	$ 6,659	$ 27,518	$ 28,404