Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
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| Supplemental Cash Flow Information [Abstract] | |||
| Cash paid during the period for interest, net of amounts capitalized | $ 66,436 | $ 122,860 | $ 130,578 |
| Non-cash conveyance of assets | 0 | 13,169 | 0 |
| Balance in property, plant and equipment, net funded with accounts payable and accrued liabilities | $ 395,100 | $ 301,400 | $ 129,800 |
| X | ||||||||||
- Definition Contribution Of Property, Non-Affiliate No definition available.
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- Definition Future cash outflow to pay for construction in progress expenditures that have occurred. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The amount of cash paid for interest during the period net of cash paid for interest that is capitalized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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