Quarterly report pursuant to Section 13 or 15(d)

EQUITY INVESTMENTS (Equity Investments Balance Sheet Disclosure) (Details)

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EQUITY INVESTMENTS (Equity Investments Balance Sheet Disclosure) (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]    
Current assets $ 216,339 $ 305,877
Current liabilities 321,936 451,198
Equity Method Investment, Nonconsolidated Investee or Group of Investees    
Schedule of Equity Method Investments [Line Items]    
Current assets 463,853 421,326
Noncurrent assets 1,086,150 1,260,075
Current liabilities 115,976 132,569
Noncurrent liabilities $ 161,183 $ 163,241