v3.26.1
Segment Reporting - Schedule of Revenue by Geographic Segments (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services $ 235.5 $ 232.6
Project-related and other 37.6 27.7
Total programming and other direct costs of services 235.5 232.6
Personnel and contract labor-related 146.1 147.2
Network-related 55.9 54.3
Service-related 60.9 60.4
Commercial 43.2 45.6
Facility, provision, franchise and other 136.1 136.8
Total significant other operating costs and expenses 442.2 444.3
Total significant expenses 677.7 676.9
Programming and copyright    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 51.3 57.6
Interconnect    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 63.7 66.7
Equipment    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 82.9 80.6
Operating Segments | Liberty Caribbean    
Segment Reporting Information [Line Items]    
Project-related and other 12.3 10.9
Total programming and other direct costs of services 48.5 51.5
Personnel and contract labor-related 50.8 48.4
Network-related 32.5 30.0
Service-related 17.1 17.7
Commercial 6.5 8.4
Facility, provision, franchise and other 35.7 34.6
Total significant other operating costs and expenses 142.6 139.1
Total significant expenses 191.1 190.6
Operating Segments | C&W Panama    
Segment Reporting Information [Line Items]    
Project-related and other 13.6 14.5
Total programming and other direct costs of services 48.4 50.8
Personnel and contract labor-related 19.6 18.4
Network-related 12.4 12.4
Service-related 5.2 4.6
Commercial 9.2 8.9
Facility, provision, franchise and other 17.0 17.3
Total significant other operating costs and expenses 63.4 61.6
Total significant expenses 111.8 112.4
Operating Segments | Liberty Networks    
Segment Reporting Information [Line Items]    
Project-related and other 13.5 4.4
Total programming and other direct costs of services 26.5 17.6
Personnel and contract labor-related 14.6 12.5
Network-related 11.7 12.7
Service-related 4.4 2.7
Commercial 0.4 0.9
Facility, provision, franchise and other 8.4 6.1
Total significant other operating costs and expenses 39.5 34.9
Total significant expenses 66.0 52.5
Operating Segments | Liberty Puerto Rico    
Segment Reporting Information [Line Items]    
Project-related and other 0.8 0.8
Total programming and other direct costs of services 85.0 85.9
Personnel and contract labor-related 34.5 39.4
Network-related 8.0 7.1
Service-related 21.9 23.1
Commercial 11.4 11.7
Facility, provision, franchise and other 44.3 49.7
Total significant other operating costs and expenses 120.1 131.0
Total significant expenses 205.1 216.9
Operating Segments | Liberty Costa Rica    
Segment Reporting Information [Line Items]    
Project-related and other 0.0 1.2
Total programming and other direct costs of services 32.9 35.8
Personnel and contract labor-related 9.4 8.4
Network-related 11.0 10.2
Service-related 8.0 6.1
Commercial 15.7 15.7
Facility, provision, franchise and other 24.6 23.1
Total significant other operating costs and expenses 68.7 63.5
Total significant expenses 101.6 99.3
Operating Segments | Programming and copyright | Liberty Caribbean    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 11.8 15.9
Operating Segments | Programming and copyright | C&W Panama    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 5.3 5.3
Operating Segments | Programming and copyright | Liberty Networks    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 0.0 0.0
Operating Segments | Programming and copyright | Liberty Puerto Rico    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 24.4 27.4
Operating Segments | Programming and copyright | Liberty Costa Rica    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 9.8 9.1
Operating Segments | Interconnect | Liberty Caribbean    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 14.7 14.4
Operating Segments | Interconnect | C&W Panama    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 15.4 16.9
Operating Segments | Interconnect | Liberty Networks    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 12.9 13.1
Operating Segments | Interconnect | Liberty Puerto Rico    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 18.0 20.8
Operating Segments | Interconnect | Liberty Costa Rica    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 6.0 6.3
Operating Segments | Equipment | Liberty Caribbean    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 9.7 10.3
Operating Segments | Equipment | C&W Panama    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 14.1 14.1
Operating Segments | Equipment | Liberty Networks    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 0.1 0.1
Operating Segments | Equipment | Liberty Puerto Rico    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 41.8 36.9
Operating Segments | Equipment | Liberty Costa Rica    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 17.1 19.2
Corporate    
Segment Reporting Information [Line Items]    
Project-related and other 0.0 0.0
Total programming and other direct costs of services 0.0 0.0
Personnel and contract labor-related 16.7 20.1
Network-related 0.0 0.0
Service-related 5.5 7.3
Commercial 0.0 0.0
Facility, provision, franchise and other 6.1 6.1
Total significant other operating costs and expenses 28.3 33.5
Total significant expenses 28.3 33.5
Corporate | Programming and copyright    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 0.0 0.0
Corporate | Interconnect    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 0.0 0.0
Corporate | Equipment    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 0.0 0.0
Intersegment eliminations    
Segment Reporting Information [Line Items]    
Project-related and other (2.6) (4.1)
Total programming and other direct costs of services (5.8) (9.0)
Personnel and contract labor-related 0.5 0.0
Network-related (19.7) (18.1)
Service-related (1.2) (1.1)
Commercial 0.0 0.0
Facility, provision, franchise and other 0.0 (0.1)
Total significant other operating costs and expenses (20.4) (19.3)
Total significant expenses (26.2) (28.3)
Intersegment eliminations | Programming and copyright    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services 0.0 (0.1)
Intersegment eliminations | Interconnect    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services (3.3) (4.8)
Intersegment eliminations | Equipment    
Segment Reporting Information [Line Items]    
Total programming and other direct costs of services $ 0.1 $ 0.0