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Supplemental Cash Flow Information and Disclosures of Non-Cash Transactions (Details) (USD $)
In Thousands, unless otherwise specified |
9 Months Ended | |
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Sep. 30, 2012
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Sep. 30, 2011
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| Supplemental Cash Flow Information [Abstract] | ||
| Cash paid during the period for interest, net of amounts capitalized | $ 77,140 | $ 82,512 |
| Construction-in-process funded with accrued liabilities | $ 52,830 | $ 0 |
| X | ||||||||||
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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 | ||||||||||
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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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| X | ||||||||||
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- Details
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