Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.2
Information About the Company's Operating Segments - (Performance Measures) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Segment Reporting Information [Line Items]        
Revenue $ 224,820 $ 217,566 $ 460,619 $ 435,302
GCI Holdings        
Segment Reporting Information [Line Items]        
Revenue 222,581 210,979 454,142 424,190
GCI Holdings | Lease, grant, and subsidies revenue        
Segment Reporting Information [Line Items]        
Revenue 19,070 22,901 40,351 45,442
GCI Holdings | Consumer Revenue | Wireless        
Segment Reporting Information [Line Items]        
Revenue 29,906 27,505 58,264 54,997
GCI Holdings | Consumer Revenue | Data        
Segment Reporting Information [Line Items]        
Revenue 45,416 41,457 89,710 82,635
GCI Holdings | Consumer Revenue | Video        
Segment Reporting Information [Line Items]        
Revenue 20,456 21,045 41,214 42,061
GCI Holdings | Consumer Revenue | Voice        
Segment Reporting Information [Line Items]        
Revenue 3,715 4,321 7,515 8,782
GCI Holdings | Business Revenue | Wireless        
Segment Reporting Information [Line Items]        
Revenue 19,616 19,393 38,854 37,777
GCI Holdings | Business Revenue | Data        
Segment Reporting Information [Line Items]        
Revenue 72,928 63,733 156,322 131,843
GCI Holdings | Business Revenue | Video        
Segment Reporting Information [Line Items]        
Revenue 4,427 3,988 8,449 7,813
GCI Holdings | Business Revenue | Voice        
Segment Reporting Information [Line Items]        
Revenue 7,047 6,636 13,463 12,840
Corporate and other        
Segment Reporting Information [Line Items]        
Revenue $ 2,239 $ 6,587 $ 6,477 $ 11,112