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Debt (Tables)
 6 Months Ended
Jun. 30, 2013
Debt  
Schedule of carrying amount and fair value of Convertible Notes

 

 

 

 

June 30, 2013

 

December 31, 2012

 

 

 

Carrying
Amount

 

Fair Value

 

Carrying
Amount

 

Fair Value

 

Pfizer convertible subordinated note due 2014

 

$

9,287

 

$

17,379

 

$

9,033

 

$

13,573

 

4.75% convertible senior notes due 2015

 

214,530

 

643,152

 

322,043

 

798,040

 

 

 

$

223,817

 

$

660,531

 

$

331,076

 

$

811,613