SEGMENT INFORMATION, Capital Expenditures by Reportable Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information, Capital Expenditures [Abstract]
Capital Expenditures	$ 816,396	$ 891,678	$ 951,679
Reportable Segments | Cable
Segment Reporting Information, Capital Expenditures [Abstract]
Capital Expenditures	686,380	743,524	806,678
Reportable Segments | Lightpath
Segment Reporting Information, Capital Expenditures [Abstract]
Capital Expenditures	96,405	109,749	111,830
Reportable Segments | Other
Segment Reporting Information, Capital Expenditures [Abstract]
Capital Expenditures	$ 33,611	$ 38,405	$ 33,171