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
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