Annual report pursuant to Section 13 and 15(d)

Equity Investments - Balance Sheet Disclosure (Details)

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Equity Investments - Balance Sheet Disclosure (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Equity Method Investments and Joint Ventures [Abstract]    
Current assets $ 421,326 $ 471,733
Noncurrent assets 1,260,075 1,302,488
Current liabilities 132,569 239,975
Noncurrent liabilities $ 163,241 $ 94,575