Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands |
6 Months Ended | |
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Jun. 30, 2016 |
Jun. 30, 2015 |
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| Supplemental Cash Flow Information [Abstract] | ||
| Cash paid during the period for interest, net of amounts capitalized | $ 59,260 | $ 46,165 |
| Balance in property, plant and equipment, net funded with accounts payable and accrued liabilities | $ 472,400 | $ 383,700 |
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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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- 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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- References No definition available.
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