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Long-Term Debt (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2011 | Dec. 31, 2010
--- | --- | ---
Long-term debt |  |
Long-term debt | $ 1,773,039 | $ 1,897,147
Term Loan [Member] |  |
Long-term debt |  |
Long-term debt | 0 | 615,943
2007 asset-backed securitization facility notes due July 2012 [Member] |  |
Long-term debt |  |
Long-term debt | 0 | 6,000
Partnership's term loan facility due November 2015 [Member] |  |
Long-term debt |  |
Long-term debt | 150,000 | 150,000
Partnership's revolving credit facility due November 2015 [Member] |  |
Long-term debt |  |
Long-term debt | 395,500 | 299,000
4.25% convertible senior notes due June 2014 [Member] |  |
Long-term debt |  |
Long-term debt | 300,149 | 281,827
4.75% convertible senior notes due January 2014 [Member] |  |
Long-term debt |  |
Long-term debt | 143,750 | 143,750
7.25% senior notes due December 2018 [Member] |  |
Long-term debt |  |
Long-term debt | 350,000 | 350,000
Other, interest at various rates, collateralized by equipment and other assets |  |
Long-term debt |  |
Long-term debt | 140 | 232
Revolving Credit Facility Due July 2016 [Member] |  |
Long-term debt |  |
Long-term debt | 433,500 | 0
Revolving Credit Facility Due August 2012 [Member] |  |
Long-term debt |  |
Long-term debt | $ 0 | $ 50,395

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- Definition Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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