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Summary of Significant Accounting Policies - Narrative (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 USD ($) segment | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Finite-Lived Intangible Assets [Line Items] |  |  |
Advertising expense | $ 11,400 | $ 6,800 | $ 4,400
Capitalized interest costs | 5,400 | 700 |
Employer contributions | 2,900 |  |
Other comprehensive income (loss), defined benefit plan, settlement and curtailment gain (loss), after tax | 700 |  |
Fair value of projected benefit obligations | $ 3,943 | 3,758 |
Net benefit plan obligation |  | 3,400 |
Number of operating segments | segment | 2 |  |
Number of reportable segments | segment | 2 |  |
Minimum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Indefinite-lived intangible assets, useful life | 10 years |  |
Maximum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Indefinite-lived intangible assets, useful life | 15 years |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Performance obligation period | 1 year |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Performance obligation period | 1 year |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01 |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Performance obligation period | 1 year |  |
Ntelos Holding, Corp | Pension Plan |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Fair value of pension plan assets |  | 21,300 |
Fair value of projected benefit obligations |  | $ 24,700 |
Discount rate (as a percent) |  | 4.90% |
Ntelos Pension Plan |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Pension benefits, vesting period | 5 years |  |
Vesting reductions, threshold age of recipient | 65 years |  |
Postretirement medical benefits plan |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Fair value of projected benefit obligations | $ 1,653 | $ 1,869 |
Discount rate (as a percent) | 4.90% | 5.00% |

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