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Goodwill and Intangibles, Net (Tables) | 3 Months Ended
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Mar. 31, 2025
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of the Changes in the Carrying Amount of Goodwill by Reporting Unit | The carrying amounts of goodwill by segment were as follows (in millions):
|  | Infrastructure |  | Spectrum |  | Total
Balance as of December 31, 2024 |  | $ | 105.3 |  |  | $ | 21.4 |  |  | $ | 126.7 |
Balance as of March 31, 2025 |  | $ | 105.3 |  |  | $ | 21.4 |  |  | $ | 126.7 |
Schedule of Indefinite-Lived Intangible Assets | The carrying amounts of indefinite-lived intangible assets were as follows (in millions):
|  | March 31, 2025 |  | December 31, 2024
FCC licenses |  | $ | 107.7 |  |  | $ | 107.7 |
Total |  | $ | 107.7 |  |  | $ | 107.7 |
Schedule of Intangible Assets Subject to Amortization | The gross carrying amounts and accumulated amortization of definite lived intangible assets by major intangible asset class were as follows (in millions):
|  | Weighted-Average Original Useful Life |  | March 31, 2025
|  |  | Gross Carrying Amount | Accumulated Amortization | Net
Trade names |  | 15 years |  | $ | 25.1 |  |  | $ | (11.4) |  |  | $ | 13.7 |
Customer relationships and contracts |  | 11 years |  | 87.4 |  |  | (50.4) |  |  | 37.0 |
Channel sharing arrangements |  | 35 years |  | 12.6 |  |  | (2.3) |  |  | 10.3 |
Other |  | 10 years |  | 3.7 |  |  | (2.0) |  |  | 1.7 |
Total |  |  |  | $ | 128.8 |  |  | $ | (66.1) |  |  | $ | 62.7 |
|  | Weighted-Average Original Useful Life |  | December 31, 2024
|  |  | Gross Carrying Amount | Accumulated Amortization | Net
Trade names |  | 15 years |  | $ | 25.1 |  |  | $ | (11.0) |  |  | $ | 14.1 |
Customer relationships and contracts |  | 11 years |  | 87.4 |  |  | (49.1) |  |  | 38.3 |
Channel sharing arrangements |  | 35 years |  | 12.6 |  |  | (2.2) |  |  | 10.4 |
Other |  | 10 years |  | 3.9 |  |  | (2.0) |  |  | 1.9 |
Total |  |  |  | $ | 129.0 |  |  | $ | (64.3) |  |  | $ | 64.7 |

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