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FAIR VALUE (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt, Fair Value $ 850,000 $ 866,200
Total debt 5,180,596 1,292,628
Derivative, Notional Amount 122,800  
5.375% Senior Notes due 2024    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt 350,000 350,000
5.375% Senior Notes due 2021    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt 500,000 500,000
Senior Notes [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt $ 3,729,900 $ 3,899,200