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Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Millions |  |  | 12 Months Ended
--- | --- | --- | ---
Jul. 06, 2023 | Aug. 23, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Business Acquisition [Line Items] |  |  |  |  |
Amortization expense |  |  | $ 0.5 | $ 0.7 | $ 0.8
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  | Other income (expense), net |  |
Spectrum Purchase Agreements | Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Indefinite-lived license |  |  |  | 13.8 |
Finite-lived license |  |  |  | 5.9 |
Operating lease liabilities |  |  |  | $ 3.8 |
Spectrum Purchase Agreements | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Gain on sale | $ 1.3 |  |  |  |
Asset Purchase Agreement |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Asset acquisition, consideration transferred |  | $ 21.1 |  |  |
Payments to acquire productive assets |  | 17.3 |  |  |
Asset acquisition, consideration transferred, liabilities incurred |  | $ 3.8 |  |  |

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- Definition Disposal Group, Including Discontinued Operation, Finite-Lived Intangible Assets + References No definition available. + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482686/350-30-45-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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- Definition Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 55 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479908/805-50-55-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 25 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480060/805-50-25-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 30 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480027/805-50-30-1 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 30 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480027/805-50-30-2 + Details
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