Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.1
Information About the Company's Operating Segments (Performance Measures) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Segment Reporting Information [Line Items]    
Total revenue $ 217,736 $ 61,204
GCI Holdings    
Segment Reporting Information [Line Items]    
Total revenue 213,211 56,792
GCI Holdings | Lease, grant, and revenue from subsidies    
Segment Reporting Information [Line Items]    
Total revenue 22,541 5,567
GCI Holdings | Consumer Revenue | Wireless    
Segment Reporting Information [Line Items]    
Revenue from contracts with customers 27,492 7,762
GCI Holdings | Consumer Revenue | Data    
Segment Reporting Information [Line Items]    
Revenue from contracts with customers 41,178 10,026
GCI Holdings | Consumer Revenue | Video    
Segment Reporting Information [Line Items]    
Revenue from contracts with customers 21,016 5,762
GCI Holdings | Consumer Revenue | Voice    
Segment Reporting Information [Line Items]    
Revenue from contracts with customers 4,461 1,168
GCI Holdings | Business Revenue | Wireless    
Segment Reporting Information [Line Items]    
Revenue from contracts with customers 18,384 5,427
GCI Holdings | Business Revenue | Data    
Segment Reporting Information [Line Items]    
Revenue from contracts with customers 68,110 18,431
GCI Holdings | Business Revenue | Video    
Segment Reporting Information [Line Items]    
Revenue from contracts with customers 3,825 1,022
GCI Holdings | Business Revenue | Voice    
Segment Reporting Information [Line Items]    
Revenue from contracts with customers 6,204 1,627
Corporate and other    
Segment Reporting Information [Line Items]    
Total revenue $ 4,525 $ 4,412