Annual report pursuant to Section 13 and 15(d)

Derivative Instruments and Hedging Activities (Details Textual 1)

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Derivative Instruments and Hedging Activities (Details Textual 1) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2011
Foreign exchange currency contracts [Member]
Dec. 31, 2010
Foreign exchange currency contracts [Member]
Derivatives, Fair Value [Line Items]      
Derivative liability Fair Value   $ 0 $ 0.8
Cash Flow Hedge Loss Reclassified to Earnings $ 1.3    
Period over which cash flow hedge loss reclassified to earnings next 12 Months