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Fair Value of Financial Insruments (Tables)
9 Months Ended
Oct. 31, 2011
Fair Value of Financial Instruments [Abstract]  
Financial assets and liabilities at fair value
   
Financial assets and liabilities carried at fair value at October 31, 2011 are classified in the tables below in one of the three categories described above:
                                         
    Carrying     Estimated Fair Value     Total Fair  
(in thousands)   Value     Level 1     Level 2     Level 3     Value  
Mutual funds a
  $ 38,561     $ 38,561     $     $     $ 38,561  
Time deposits b
    18,253       18,253                   18,253  
 
                                       
Derivatives designated as hedging instruments:
                                       
 
                                       
Interest rate swap agreements a
    660             660             660  
Precious metal forward contracts c
    2,110             2,110             2,110  
 
                                       
Derivatives not designated as hedging instruments:
                                       
 
                                       
Foreign exchange forward contracts c
    355             355             355  
 
                             
Total financial assets
  $ 59,939     $ 56,814     $ 3,125     $     $ 59,939  
 
                             
                                         
    Carrying     Estimated Fair Value     Total Fair  
(in thousands)   Value     Level 1     Level 2     Level 3     Value  
 
                                       
Derivatives designated as hedging instruments:
                                       
Foreign exchange forward contracts d
  $ 8,691     $     $ 8,691     $     $ 8,691  
Precious metal forward contracts d
    5,580             5,580             5,580  
 
                                       
Derivatives not designated as hedging instruments:
                                       
Foreign exchange forward contracts d
    63             63             63  
 
                             
Total financial liabilities
  $ 14,334     $     $ 14,334     $     $ 14,334  
 
                             
   
Financial assets and liabilities carried at fair value at October 31, 2010 are classified in the tables below in one of the three categories described above:
                                         
    Carrying     Estimated Fair Value     Total Fair  
(in thousands)   Value     Level 1     Level 2     Level 3     Value  
Mutual funds a
  $ 42,939     $ 42,939     $     $     $ 42,939  
Time deposits b
    47,254       47,254                   47,254  
 
                                       
Derivatives designated as hedging instruments:
                                       
 
                                       
Interest rate swap agreements a
    9,253             9,253             9,253  
Precious metal forward contracts c
    1,371             1,371             1,371  
Precious metal collars c
    242             242             242  
 
                                       
Derivatives not designated as hedging instruments:
                                       
 
                                       
Foreign exchange forward contracts c
    107             107             107  
Put option contracts c
    208             208             208  
 
                             
Total financial assets
  $ 101,374     $ 90,193     $ 11,181     $     $ 101,374  
 
                             
                                         
    Carrying     Estimated Fair Value     Total Fair  
(in thousands)   Value     Level 1     Level 2     Level 3     Value  
Derivatives designated as hedging instruments:
                                       
 
                                       
Foreign exchange forward contracts d
  $ 5,825     $     $ 5,825     $     $ 5,825  
 
                                       
Derivatives not designated as hedging instruments:
                                       
Call option contracts d
    208             208             208  
 
Foreign exchange forward contracts d
    128             128             128  
 
                             
Total financial liabilities
  $ 6,161     $     $ 6,161     $     $ 6,161  
 
                             
a  
Included within Other assets, net on the Company’s Condensed Consolidated Balance Sheet.
 
b  
Included within Short-term investments on the Company’s Condensed Consolidated Balance Sheet.
 
c  
Included within Prepaid expenses and other current assets on the Company’s Condensed Consolidated Balance Sheet.
 
d  
Included within Accounts payable and accrued liabilities on the Company’s Condensed Consolidated Balance Sheet.