Segment Reporting - Schedule of Cost of Goods and Services Sold (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Other Income and Expenses [Line Items]
Total programming and other direct costs of services	$ 233.6	$ 247.6	$ 698.1	$ 712.6
Programming and copyright
Other Income and Expenses [Line Items]
Total programming and other direct costs of services	52.0	54.4	160.5	169.5
Interconnect
Other Income and Expenses [Line Items]
Total programming and other direct costs of services	62.0	66.6	187.2	199.5
Equipment
Other Income and Expenses [Line Items]
Total programming and other direct costs of services	80.6	79.5	240.2	243.1
Project-related and other
Other Income and Expenses [Line Items]
Total programming and other direct costs of services	$ 39.0	$ 47.1	$ 110.2	$ 100.5

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.