Long-Term Obligations (Tables)

9 Months Ended

Sep. 30, 2011

Long-Term Obligations [Abstract]

Schedule Of Carrying Amount Of Convertible Senior Notes

	September 30, 2011		December 31, 2010
2011 convertible senior notes	$	—	$	638,991
2013 convertible senior notes		599,324		576,884
2014 convertible senior notes		1,174,494		1,153,805
2016 convertible senior notes		1,126,089		1,107,884
2021 senior unsecured notes		991,851		—
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