Additional Financial Information - Schedule of Other Accrued Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Other accrued liabilities (current)
Contract termination liability	$ 48.0	$ 0.0
Employee related liabilities	42.7	23.5
Operating lease liabilities	11.4	11.1
Other accrued expenses and short-term liabilities	18.8	14.5
Other accrued liabilities, current	120.9	49.1
Other liabilities (non-current)
Contract termination liability	99.2	0.0
Operating lease liabilities	43.1	48.3
Programming related payables	23.1	19.7
Other long-term liabilities	4.6	4.7
Other liabilities, noncurrent	$ 170.0	$ 72.7