Goodwill and Intangible Assets and Liabilities - Schedule of Amortization Methodology and Useful Lives for Finite-Lived Intangible Assets (Details)	Sep. 30, 2025
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful life	5 years
Customer lists | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful life	14 years
Customer lists | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful life	30 years
IPv4 addresses
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful life	17 years 6 months
Trade name
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful life	15 years
Contracts
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful life	8 years
Rights of way | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful life	9 years 4 months 24 days
Rights of way | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful life	30 years
Below-market leases | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible liabilities, useful life	8 years
Below-market leases | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible liabilities, useful life	20 years