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FAIR VALUE MEASUREMENTS (Fair Value of Senior Notes) (Details) - Fair value, inputs, Level 2 [Member] - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Fair Value Measurements    
Carrying amount of senior notes $ 4,669,833 $ 3,826,978
Estimated fair value of senior notes $ 4,501,833 $ 4,135,629