Revenue Recognition and Related Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Mar. 31, 2025
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Trade receivables, allowance for doubtful accounts	$ 20.5	$ 28.8
Contract assets	9.4	10.8
Deferred revenue	289.5	$ 279.7
Revenue recognized	$ 182.0
Residential Service | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, period		12 months
Mobile Services | Minimum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, period		1 year
Mobile Services | Maximum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, period		3 years
B2B Services | Minimum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, period		1 year
B2B Services | Maximum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, period		5 years
B2B Services | Weighted Average
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, period		3 years