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Fair Value Measurements (Tables)
 3 Months Ended
Mar. 31, 2012
Fair Value Measurements [Abstract]  
Schedule Of Fair Value Of Assets And Liabilities Measured On Recurring Basis
As of March 31, 2012   Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)		     Significant
Other
Observable
Inputs
(Level 2)		     Significant
Unobservable
Inputs
(Level 3)		     Balance at
March 31, 2012		  
                                 
Measured at Fair Value on Recurring Basis                                
Assets                                
Money market funds(1)   $ 119,798     $ -     $ -     $ 119,798  
Equity mutual funds(2)     2,239       -       -       2,239  
Foreign currency exchange contracts(3)     -       4,080       -       4,080  
Liabilities                                
Foreign currency exchange contracts(3)     -       1,081       -       1,081  
Deferred compensation(4)     2,239       -       -       2,239  
Interest rate swaps(5)     -       1,242       -       1,242  

 

As of December 31, 2011   Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)		     Significant
Other
Observable
Inputs
(Level 2)		     Significant
Unobservable
Inputs
(Level 3)		     Balance at
December 31, 2011		  
                                 
Assets                                
Money market funds(1)   $ 88,525     $ -     $ -     $ 88,525  
Equity mutual funds(2)     2,056       -       -       2,056  
Foreign currency exchange contracts(3)     -       6,841       -       6,841  
Liabilities                                
Foreign currency exchange contracts(3)     -       1,753       -       1,753  
Deferred compensation(4)     2,056       -       -       2,056  
Interest rate swaps(5)     -       1,417       -       1,417  

  

(1) Money market funds are included within cash and cash equivalents. The remaining balance of cash and cash equivalents as of March 31, 2012 and December 31, 2011 was demand deposits.
(2) Equity mutual funds relate to a deferred compensation plan that was assumed as part of a previous business combination. This amount is included within other long-term assets, net. See number (4) below for a discussion of the related deferred compensation liability.
(3) Foreign currency exchange contracts are included within other current assets; other long-term assets, net; accrued liabilities; or other long-term liabilities depending on the gain (loss) position and anticipated settlement date.
(4) Deferred compensation plans are included within other long-term liabilities. The fair value of our deferred compensation plan is indexed to the performance of the underlying equity mutual funds discussed in number (2) above.
(5) Interest rate swaps are included within accrued liabilities.