Quarterly report pursuant to Section 13 or 15(d)

Information About the Company's Operating Segments (Performance Measures) (Details)

v3.10.0.1
Information About the Company's Operating Segments (Performance Measures) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Segment Reporting Information [Line Items]        
Revenue $ 233,490 $ 6,177 $ 294,694 $ 10,146
Adjusted OIBDA 71,724 (6,922) 85,612 (14,794)
Operating Segments        
Segment Reporting Information [Line Items]        
Revenue 236,861 9,250 309,856 16,359
Adjusted OIBDA 68,948 (11,877) 87,396 (23,710)
Operating Segments | GCI Holdings        
Segment Reporting Information [Line Items]        
Revenue 227,781 0 284,573 0
Adjusted OIBDA 78,915 0 98,663 0
Operating Segments | Liberty Broadband        
Segment Reporting Information [Line Items]        
Revenue 3,371 3,073 15,162 6,213
Adjusted OIBDA (2,776) (4,955) 1,784 (8,916)
Operating Segments | Corporate and other        
Segment Reporting Information [Line Items]        
Revenue 5,709 6,177 10,121 10,146
Adjusted OIBDA (7,191) (6,922) (13,051) (14,794)
Consolidation, Eliminations        
Segment Reporting Information [Line Items]        
Revenue (3,371) (3,073) (15,162) (6,213)
Adjusted OIBDA $ 2,776 $ 4,955 $ (1,784) $ 8,916