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Hedging Activities And Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2011
Hedging Activities And Fair Value Measurements [Abstract] 
Schedule Of Notional Amounts, Fair Values And Classification Of The Company's Outstanding Derivatives By Risk Category And Instrument Type
Schedule Of Gains And Losses On Derivatives Designated As Cash Flow Hedges
Schedule Of Gains And (Losses) On Forward Currency Contracts Outstanding And Total Net Foreign Currency Gains And (Losses)
Schedule Of Gains And (Losses), Net Of Income Tax, Associated With Changes In The Fair Value Of Debt
     Three Months Ended
September 30,
    Nine Months Ended
September 30,
 
     2011      2010     2011     2010  

Gain (loss), net of income tax, recorded through other comprehensive income

   $ 1,955       $ (974   $ 1,638      $ 1,663   

Balance included in accumulated other comprehensive income at September 30

          (3,495     (3,795
Summary Of Fair Value Hierarchy Of Financial Assets And Liabilities Measured At Fair Value On Recurring Basis