SEGMENT INFORMATION, Capital Expenditures by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Segment Reporting Information, Capital Expenditures [Abstract]
Capital expenditures	$ 148,652	$ 166,631
Reportable Segments | Cable
Segment Reporting Information, Capital Expenditures [Abstract]
Capital expenditures	119,591	133,571
Reportable Segments | Lightpath
Segment Reporting Information, Capital Expenditures [Abstract]
Capital expenditures	21,157	23,732
Reportable Segments | Other
Segment Reporting Information, Capital Expenditures [Abstract]
Capital expenditures	$ 7,904	$ 9,328