v3.26.3
Intangible Assets, Net (Gross and Net Carrying Amounts for each Major Class of Intangible Assets) (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount $ 7,686,327 $ 7,687,344
Accumulated amortization (4,891,613) (4,805,227)
Net book value 2,794,714 2,882,117
Current Contract Intangibles [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 5,691,300 5,695,073
Accumulated amortization (3,504,101) (3,438,168)
Net book value 2,187,199 2,256,905
Network Location Intangibles [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 1,995,027 1,992,271
Accumulated amortization (1,387,512) (1,367,059)
Net book value $ 607,515 $ 625,212