Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS (Fair Value of Debt) (Details)

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FAIR VALUE MEASUREMENTS (Fair Value of Debt) (Details) - Level 2 [Member] - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
6.5% Senior Secured Notes Due 2027 [Member]    
Debt Fair Value [Line Items]    
Estimated fair values of senior notes $ 1,179,192 $ 1,315,284
3.75% Senior Secured Notes Due 2028 [Member]    
Debt Fair Value [Line Items]    
Estimated fair values of senior notes 433,170 498,380
4.75% Senior Notes due 2027 [Member]    
Debt Fair Value [Line Items]    
Estimated fair values of senior notes 850,849 978,358
4.875% Senior Notes Due 2024 [Member]    
Debt Fair Value [Line Items]    
Estimated fair values of senior notes 550,528 582,952
5.625% Senior Notes Due 2026 [Member]    
Debt Fair Value [Line Items]    
Estimated fair values of senior notes 287,766 310,284
2.5% Convertible Senior Notes Due 2023    
Debt Fair Value [Line Items]    
Estimated fair values of convertible senior notes 707,223 996,369
2.0% Convertible Senior Notes Due 2025 [Member]    
Debt Fair Value [Line Items]    
Estimated fair values of convertible senior notes $ 420,984 $ 531,040