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Revenue - Spectrum Sale Agreements (Details) $ in Thousands	3 Months Ended
Revenue - Spectrum Sale Agreements (Details) $ in Thousands	Jun. 30, 2026 USD ($) license	Apr. 30, 2026 USD ($)	Mar. 31, 2026 USD ($)	Jan. 31, 2026 USD ($)	Jun. 30, 2025 USD ($)	Mar. 31, 2025 USD ($)
Disaggregation of Revenue [Line Items]
Payments Received	$ 174,913		$ 161,178		$ 128,214	$ 124,672
CPS Energy (“CPS”) \| License
Disaggregation of Revenue [Line Items]
Total Consideration				$ 13,000
Payments Received	6,500
Payments remaining	$ 6,500
Broadband license(s) delivered \| license	0
Broadband license(s) remaining \| license	1
Texas-New Mexico Power Company (“TNMP”) \| License
Disaggregation of Revenue [Line Items]
Total Consideration			3,200
Payments Received	$ 1,600
Payments remaining	$ 1,600
Broadband license(s) delivered \| license	0
Broadband license(s) remaining \| license	2
NorthWestern Energy (“NWE”) \| License
Disaggregation of Revenue [Line Items]
Total Consideration			$ 7,700
Payments Received	$ 100
Payments remaining	$ 7,600
Broadband license(s) delivered \| license	0
Broadband license(s) remaining \| license	65
Benton County (“Benton PUD”) \| License
Disaggregation of Revenue [Line Items]
Total Consideration		$ 800
Payments Received	$ 200
Payments remaining	$ 600
Broadband license(s) delivered \| license	0
Broadband license(s) remaining \| license	1