v3.26.3
Segment Reporting - Schedule of Revenue by Geographic Segments (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Segment Reporting [Line Items]        
Total programming and other direct costs of services $ 233.6 $ 247.6 $ 698.1 $ 712.6
Project-related and other 39.0 47.1 110.2 100.5
Total programming and other direct costs of services 233.6 247.6 698.1 712.6
Personnel and contract labor-related 132.9 135.6 420.0 423.0
Network-related 56.5 51.9 168.0 161.4
Service-related 60.6 62.4 184.9 183.7
Commercial 39.4 45.2 124.2 135.5
Facility, provision, franchise and other 140.4 136.4 412.5 411.5
Total significant other operating costs and expenses 429.8 431.5 1,309.6 1,315.1
Total significant expenses 663.4 679.1 2,007.7 2,027.7
Programming and copyright        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 52.0 54.4 160.5 169.5
Interconnect        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 62.0 66.6 187.2 199.5
Equipment        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 80.6 79.5 240.2 243.1
Operating Segments | Liberty Caribbean        
Segment Reporting [Line Items]        
Project-related and other 14.0 15.4 39.8 39.3
Total programming and other direct costs of services 56.6 54.3 161.8 159.9
Personnel and contract labor-related 48.3 47.6 148.4 144.7
Network-related 33.0 30.1 96.3 90.3
Service-related 16.7 17.8 52.7 50.8
Commercial 6.9 8.1 21.4 25.1
Facility, provision, franchise and other 32.1 38.4 101.3 108.6
Total significant other operating costs and expenses 137.0 142.0 420.1 419.5
Total significant expenses 193.6 196.3 581.9 579.4
Operating Segments | C&W Panama        
Segment Reporting [Line Items]        
Project-related and other 17.1 30.3 44.4 56.1
Total programming and other direct costs of services 52.8 65.1 149.6 165.0
Personnel and contract labor-related 15.3 18.3 51.6 54.1
Network-related 12.7 11.1 37.6 35.7
Service-related 8.1 5.5 20.1 14.9
Commercial 9.5 9.2 27.6 26.3
Facility, provision, franchise and other 18.6 18.1 53.8 52.4
Total significant other operating costs and expenses 64.2 62.2 190.7 183.4
Total significant expenses 117.0 127.3 340.3 348.4
Operating Segments | Liberty Networks        
Segment Reporting [Line Items]        
Project-related and other 9.8 5.0 31.6 14.2
Total programming and other direct costs of services 23.3 19.1 71.8 55.3
Personnel and contract labor-related 16.4 12.5 46.0 38.3
Network-related 14.0 10.8 38.4 35.2
Service-related 4.6 3.2 15.3 8.5
Commercial 0.3 0.4 1.5 1.6
Facility, provision, franchise and other 7.7 5.5 23.0 18.9
Total significant other operating costs and expenses 43.0 32.4 124.2 102.5
Total significant expenses 66.3 51.5 196.0 157.8
Operating Segments | Liberty Puerto Rico        
Segment Reporting [Line Items]        
Project-related and other 1.0 0.6 2.8 1.9
Total programming and other direct costs of services 71.0 83.6 230.0 256.6
Personnel and contract labor-related 31.9 34.0 103.3 109.6
Network-related 4.2 9.3 19.2 26.4
Service-related 19.8 19.6 61.5 63.6
Commercial 11.3 11.9 33.1 35.3
Facility, provision, franchise and other 47.7 44.3 138.7 142.4
Total significant other operating costs and expenses 114.9 119.1 355.8 377.3
Total significant expenses 185.9 202.7 585.8 633.9
Operating Segments | Liberty Costa Rica        
Segment Reporting [Line Items]        
Project-related and other (0.2) 0.0 (0.1) 1.2
Total programming and other direct costs of services 35.9 34.1 103.3 102.0
Personnel and contract labor-related 9.5 8.4 28.4 25.5
Network-related 11.4 9.8 33.8 30.2
Service-related 8.4 6.1 25.3 18.8
Commercial 11.3 15.7 40.4 47.2
Facility, provision, franchise and other 28.4 24.0 80.0 71.0
Total significant other operating costs and expenses 69.0 64.0 207.9 192.7
Total significant expenses 104.9 98.1 311.2 294.7
Operating Segments | Programming and copyright | Liberty Caribbean        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 14.4 15.8 44.2 47.9
Operating Segments | Programming and copyright | C&W Panama        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 4.2 5.1 13.9 15.5
Operating Segments | Programming and copyright | Liberty Networks        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 0.0 0.0 0.0 0.0
Operating Segments | Programming and copyright | Liberty Puerto Rico        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 23.6 23.7 72.2 77.7
Operating Segments | Programming and copyright | Liberty Costa Rica        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 9.7 9.8 30.2 28.4
Operating Segments | Interconnect | Liberty Caribbean        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 13.8 14.9 43.2 44.9
Operating Segments | Interconnect | C&W Panama        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 16.5 15.5 47.1 48.4
Operating Segments | Interconnect | Liberty Networks        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 13.5 13.8 40.0 40.5
Operating Segments | Interconnect | Liberty Puerto Rico        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 16.5 21.4 51.0 62.4
Operating Segments | Interconnect | Liberty Costa Rica        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 5.1 5.4 16.0 17.3
Operating Segments | Equipment | Liberty Caribbean        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 14.4 8.2 34.6 27.8
Operating Segments | Equipment | C&W Panama        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 15.0 14.2 44.2 45.0
Operating Segments | Equipment | Liberty Networks        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 0.0 0.3 0.2 0.6
Operating Segments | Equipment | Liberty Puerto Rico        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 29.9 37.9 104.0 114.6
Operating Segments | Equipment | Liberty Costa Rica        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 21.3 18.9 57.2 55.1
Corporate        
Segment Reporting [Line Items]        
Project-related and other 0.0 0.0 0.0 0.0
Total programming and other direct costs of services 0.0 0.0 0.0 0.0
Personnel and contract labor-related 11.5 14.4 41.3 49.6
Network-related 0.0 0.0 0.0 0.0
Service-related 4.0 10.7 12.6 29.9
Commercial 0.2 0.0 0.2 0.0
Facility, provision, franchise and other 5.5 6.4 16.1 18.5
Total significant other operating costs and expenses 21.2 31.5 70.2 98.0
Total significant expenses 21.2 31.5 70.2 98.0
Corporate | Programming and copyright        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 0.0 0.0 0.0 0.0
Corporate | Interconnect        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 0.0 0.0 0.0 0.0
Corporate | Equipment        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 0.0 0.0 0.0 0.0
Intersegment eliminations        
Segment Reporting [Line Items]        
Project-related and other (2.7) (4.2) (8.3) (12.2)
Total programming and other direct costs of services (6.0) (8.6) (18.4) (26.2)
Personnel and contract labor-related 0.0 0.4 1.0 1.2
Network-related (18.8) (19.2) (57.3) (56.4)
Service-related (1.0) (0.5) (2.6) (2.8)
Commercial (0.1) (0.1) 0.0 0.0
Facility, provision, franchise and other 0.4 (0.3) (0.4) (0.3)
Total significant other operating costs and expenses (19.5) (19.7) (59.3) (58.3)
Total significant expenses (25.5) (28.3) (77.7) (84.5)
Intersegment eliminations | Programming and copyright        
Segment Reporting [Line Items]        
Total programming and other direct costs of services 0.1 0.0 0.0 0.0
Intersegment eliminations | Interconnect        
Segment Reporting [Line Items]        
Total programming and other direct costs of services (3.4) (4.4) (10.1) (14.0)
Intersegment eliminations | Equipment        
Segment Reporting [Line Items]        
Total programming and other direct costs of services $ 0.0 $ 0.0 $ 0.0 $ 0.0