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Intangible Assets, Net (Gross and Net Carrying Amounts for each Major Class of Intangible Assets) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying amount | $ 7,179,789 | $ 7,063,235
Accumulated amortization | (4,724,192) | (4,286,763)
Net book value | 2,455,597 | 2,776,472
Current Contract Intangibles [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying amount | 5,253,563 | 5,170,187
Accumulated amortization | (3,394,009) | (3,060,494)
Net book value | 1,859,554 | 2,109,693
Network Location Intangibles [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying amount | 1,926,226 | 1,893,048
Accumulated amortization | (1,330,183) | (1,226,269)
Net book value | $ 596,043 | $ 666,779

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