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Borrowings (Tables)
 9 Months Ended
Sep. 30, 2012
Borrowings [Abstract]  
Principal Amounts And Related Unamortized Discount On Convertible Notes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   (in thousands)

 

2012

 

 

2011

 

Principal amount of convertible notes

 

$
140,500 

 

 

$
152,000 

 

Unamortized discount on convertible notes

 

 
(16,939 

)

 

 
(20,893 

)

Net carrying value

 

$
123,561 

 

 

$
131,107