Summary of Significant Accounting Policies - Summary of estimated useful lives of assets (Details)	Jun. 30, 2025
Minimum [Member] | Equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Minimum [Member] | Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Minimum [Member] | Leasehold improvements
Property, Plant and Equipment [Line Items]
Estimated useful lives	6 years
Minimum [Member] | Construction equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Minimum [Member] | Fiber plant
Property, Plant and Equipment [Line Items]
Estimated useful lives	15 years
Minimum [Member] | Customer premise equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives	4 years
Minimum [Member] | Towers
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Minimum [Member] | Plant in service
Property, Plant and Equipment [Line Items]
Estimated useful lives	15 years
Maximum [Member] | Equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives	7 years
Maximum [Member] | Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated useful lives	7 years
Maximum [Member] | Leasehold improvements
Property, Plant and Equipment [Line Items]
Estimated useful lives	15 years
Maximum [Member] | Construction equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives	10 years
Maximum [Member] | Fiber plant
Property, Plant and Equipment [Line Items]
Estimated useful lives	30 years
Maximum [Member] | Customer premise equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Maximum [Member] | Towers
Property, Plant and Equipment [Line Items]
Estimated useful lives	10 years
Maximum [Member] | Plant in service
Property, Plant and Equipment [Line Items]
Estimated useful lives	29 years