Equity Investments (Equity Investments Balance Sheet Disclosure) (Details) - USD ($) $ in Thousands |
Mar. 31, 2018 |
Dec. 31, 2017 |
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| Equity Method Investments and Joint Ventures [Abstract] | ||
| Current assets | $ 395,679 | $ 415,032 |
| Noncurrent assets | 2,109,829 | 1,542,090 |
| Current liabilities | 285,521 | 261,086 |
| Noncurrent liabilities | $ 87,259 | $ 148,839 |
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- Definition The amount of current assets reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of current liabilities reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of noncurrent assets reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of noncurrent liabilities reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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