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Derivative Financial Instruments (Location And Amounts Of Pre-Tax Gains (Losses) On Derivative Financial Instruments Not Designated As Hedges) (Details) (Not Designated as Hedging Instrument [Member], USD $)
In Thousands
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Derivative Instruments, Gain (Loss) [Line Items]    
Amount of net gains (losses) on derivative instruments$ 16,437$ (14,645)$ 6,922$ (16,420)
Foreign Exchange Forward Contracts [Member] | Other Income (Expense), Net [Member]
    
Derivative Instruments, Gain (Loss) [Line Items]    
Amount of net gains (losses) on derivative instruments$ 16,437$ (14,645)$ 6,922$ (16,420)