|
Supplmental Cash Flow Information and Disclosures of Non-Cash Transactions (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Supplemental Cash Flow Elements [Abstract] | |||
| Cash paid for interest, net of amounts capitalized | $ 160,273 | $ 164,513 | $ 164,793 |
| Construction-in-process funded with accrued liabilities | $ 99,680 | $ 0 | $ 0 |
| X | ||||||||||
|
- Definition
Future cash outflow to pay for construction in progress expenditures that have occurred. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| 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
|
| X | ||||||||||
|
- Details
|