Indebtedness (Tables)

3 Months Ended

Mar. 31, 2012

Debt Disclosure [Abstract]

Schedule Of Indebtedness

Our indebtedness is summarized as follows (in thousands):

	March 31, 2012		December 31, 2011
Current portion:
Promissory note related to revenue sharing obligation	$	68,304	$	63,552
Current portion of indebtedness	$	68,304	$	63,552
Non-current portion:
Convertible senior notes, net of debt discount	$	503,274	$	496,037
Notes payable, net of debt discount	155,602		155,064
Promissory note related to revenue sharing obligation	947,092		924,306
Non-current portion of indebtedness	$	1,605,968	$	1,575,407

Summary Of Principal Amount Of Liability Component (Including Accrued Interest), Unamortized Discount And Net Carrying Amount Of RSO

The following table summarizes the principal amount of the liability component (including accrued interest), the unamortized discount and net carrying amount of the RSO as of March 31, 2012 and December 31, 2011 (in thousands):

	March 31, 2012			December 31, 2011
Promissory note related to revenue sharing obligation —Due December 31, 2036
Principal amount, including accrued interest	$	1,230,632		$	1,209,109
Unamortized debt discount	(215,236		)	(221,251		)
Net carrying amount	1,015,396			987,858
Less current portion	(68,304		)	(63,552		)
Non-current portion	$	947,092		$	924,306

Summary Of Principal Amount Of Liability Component, Unamortized Discount And Net Carrying Amount Of Convertible Senior Notes

The following table summarizes the principal amount of the liability component, the unamortized discount and the net carrying amount of our convertible senior notes (in thousands):

	March 31, 2012			December 31, 2011
2007 Notes—Due June 15, 2014
Principal amount	$	575,000		$	575,000
Unamortized debt discount	(71,726		)	(78,963		)
Net carrying amount	503,274			496,037
Total convertible senior notes, net	503,274			496,037
Less current portion	—			—
Non-current portion	$	503,274		$	496,037