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v3.24.1.1.u2

Nature of Operations (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 12 Months Ended | 45 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Nov. 30, 2023 USD ($) mi² term | Sep. 30, 2023 USD ($) | Jul. 31, 2023 USD ($) | Apr. 30, 2023 USD ($) city county | Oct. 31, 2022 USD ($) | Sep. 30, 2022 USD ($) | Feb. 28, 2021 USD ($) | Dec. 31, 2023 USD ($) | Sep. 30, 2023 USD ($) | Mar. 31, 2024 USD ($) county | Mar. 31, 2023 USD ($) county | Dec. 31, 2026 USD ($) | Sep. 21, 2023 USD ($) | Dec. 31, 2022 USD ($) | Mar. 31, 2022 USD ($) | Sep. 30, 2021 USD ($)
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prepayments received |  |  |  |  |  |  |  |  |  |  |  | $ 122,212 | $ 60,759 |  |  |  | $ 54,678 |
Broadband licenses granted, number of counties | county |  |  |  |  |  |  |  |  |  |  |  | 28 | 84 |  |  |  |  |
Payments to acquire intangible assets |  |  |  |  |  |  |  |  |  |  |  | $ 17,031 | $ 25,004 |  |  |  |  |
Increase in deposit assets |  |  |  |  |  |  |  |  |  | $ 7,500 |  | 7,500 |  |  |  |  |  |
Spectrum revenue |  |  |  |  |  |  |  |  |  |  |  | 4,191 | 1,919 |  |  |  |  |
Contingent liability |  |  |  |  |  |  |  |  | $ 20,000 |  |  | 15,000 | 0 |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 250,000 |  |  | $ 50,000
SDG&E |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration transferred |  |  |  |  |  |  |  |  | $ 50,000 |  |  |  |  |  |  |  |  |
Spectrum revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Spectrum revenue |  |  |  |  |  |  |  |  |  |  |  | 4,191 | 1,919 |  |  |  |  |
Tampa Electric Company | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreement term |  |  | 20 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of agreement extension terms | term |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreement extension term |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service area | mi² |  |  | 2,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total scheduled prepayments |  |  | $ 34,500 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prepayments received |  | $ 6,900 |  |  |  |  |  |  |  | 6,900 |  |  |  |  |  |  |  |
Lower Colorado River Authority (LCRA) | Wireless Licenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Broadband licenses granted, number of counties | county |  |  |  |  |  | 68 |  |  |  |  |  |  |  |  |  |  |  |
Broadband licenses granted, minimum number of cities | city |  |  |  |  |  | 30 |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire intangible assets |  |  |  |  |  | $ 30,000 |  |  |  |  |  |  |  |  |  |  |  |
Lower Colorado River Authority (LCRA) | Wireless Licenses | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire intangible assets |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 30,000 |  |  |  |
Lower Colorado River Authority (LCRA) | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial payment received |  |  |  |  |  |  |  |  |  | $ 15,000 |  | 15,000 |  |  |  |  |  |
Xcel Energy | Spectrum revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Spectrum revenue |  |  |  |  |  |  |  |  |  |  |  | 1,887 | $ 0 |  |  |  |  |
Xcel Energy | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreement term |  |  |  |  |  |  | 20 years |  |  |  |  |  |  |  |  |  |  |
Agreement extension term |  |  |  |  |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |
Total scheduled prepayments |  |  |  |  |  |  | $ 80,000 |  |  |  |  |  |  |  |  |  |  |
Prepayments received |  |  |  |  |  |  |  |  |  |  |  | $ 67,100 |  |  |  | $ 8,000 |  |
Milestone payment received |  |  | $ 21,200 |  | $ 21,200 |  |  |  |  |  |  |  |  |  |  |  |  |
Advance payment received | $ 16,800 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SDG&E | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Milestone payment received |  | $ 200 |  | $ 25,200 |  |  |  | $ 200 |  |  |  |  |  |  |  |  |  |
Delivery delay adjustments |  |  |  | $ 1,100 |  |  |  |  |  |  | $ 1,100 |  |  |  |  |  |  |

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