Long-Term Obligations (Schedule Of Carrying Amount Of Convertible Senior Notes) (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Debt Instrument [Line Items]
Total debt, net	$ 3,891,758	$ 3,477,564
Less current portion (2011 convertible senior notes)		638,991
Total long-term debt, net	3,891,758	2,838,573
2011 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Total debt, net		638,991
2013 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Total debt, net	599,324	576,884
2014 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Total debt, net	1,174,494	1,153,805
2016 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Total debt, net	1,126,089	1,107,884
2021 Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Total debt, net	$ 991,851

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Carrying value as of the balance sheet date of the portion of long-term notes having the highest claim on the assets of the issuer in case of bankruptcy or liquidation, due within one year or the normal operating cycle, if longer. Senior note holders are paid off in full before any payments are made to debt holders having a lesser priority of repayment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

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