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Fair Value of Financial Instruments (Tables)
 9 Months Ended
Sep. 30, 2012
Valuation of Financial Instruments by Pricing Levels

The following table summarizes the valuation of the Company’s financial instruments by the above pricing levels as of the valuation dates listed (in thousands):

     September 30, 2012      December 31, 2011  
     Carrying
Value		      Fair
Value		      Carrying
Value		      Fair
Value		  

Foreign currency derivative instruments—asset position(1)

    $ 569       $ 569       $ 2,514       $ 2,514   

Foreign currency derivative instruments—liability position(1)

      1,529         1,529         3,746         3,746   

Convertible senior notes(2)

      106,925         116,865         —           —     

 

(1) Based on Level 2 observable inputs that are corroborated by market data.
(2) Based on Level 2 secondary market quoted prices.