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Fair Value Measurements (Summary of Asset Impairment and Decommission Costs) (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023
Fair Value Measurements [Abstract] |  |
Asset impairment | $ 34,552 | $ 22,332
Write-off of carrying value of decommissioned towers | 4,102 | 1,954
Other (including tower and equipment decommission costs) | 4,994 | 2,104
Total asset impairment and decommission costs | $ 43,648 | $ 26,390

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- Definition Impairment of Long-Lived Assets Held-for-use, Additions + References No definition available. + Details
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- Definition Other Asset Impairment Charges Including Third Pary Decommission Costs + References No definition available. + Details
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- Definition The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale. + 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 -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482130/360-10-45-15 + Details
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