Segment Information - Assets by Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 1,433,625	$ 627,151
Operating Segments [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	2,481,539	983,609
Operating Segments [Member] | Wireless [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	1,106,023	205,718
Operating Segments [Member] | Cable [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	213,664	209,132
Operating Segments [Member] | Wireline [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	109,647	105,369
Operating Segments [Member] | Other Segments [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	1,052,205	463,390
Intersegment Eliminations [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ (1,047,914)	$ (356,458)