Revenue Recognition and Related Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Contract assets	$ 45.8	$ 33.3
Deferred revenue	267.6	272.5
Revenue recognized	217.1
Aggregate assets associated with incremental costs to obtain a contract and contract fulfillment costs	84.1	69.4
Amortization related to contract costs	$ 80.6	$ 75.2	$ 122.0
Residential Service | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, period	12 months
Mobile Services | Minimum
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, period	1 year
Mobile Services | Maximum
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, period	3 years
B2B Services | Minimum
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, period	1 year
B2B Services | Maximum
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, period	5 years