Quarterly report pursuant to Section 13 or 15(d)

Information About GCI Liberty's Operating Segments (Performance Measures) (Details)

v3.8.0.1
Information About GCI Liberty's Operating Segments (Performance Measures) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Segment Reporting Information [Line Items]    
Revenue $ 61,204 $ 3,969
Adjusted OIBDA 13,888 (7,872)
Operating Segments    
Segment Reporting Information [Line Items]    
Revenue 72,995 7,109
Adjusted OIBDA 18,448 (11,833)
Operating Segments | GCI Holdings    
Segment Reporting Information [Line Items]    
Revenue 56,792 0
Adjusted OIBDA 19,748 0
Operating Segments | Liberty Broadband    
Segment Reporting Information [Line Items]    
Revenue 11,791 3,140
Adjusted OIBDA 4,560 (3,961)
Operating Segments | Corporate and other    
Segment Reporting Information [Line Items]    
Revenue 4,412 3,969
Adjusted OIBDA (5,860) (7,872)
Consolidation, Eliminations    
Segment Reporting Information [Line Items]    
Revenue (11,791) (3,140)
Adjusted OIBDA $ (4,560) $ 3,961