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Derivatives and Hedging Activities (Details Textual) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2011
Jun. 30, 2011
Designated as Hedging Instrument [Member]
Interest Rate Swap [Member]
Jun. 30, 2010
Designated as Hedging Instrument [Member]
Interest Rate Swap [Member]
Jun. 30, 2011
Designated as Hedging Instrument [Member]
Interest Rate Swap [Member]
Jun. 30, 2010
Designated as Hedging Instrument [Member]
Interest Rate Swap [Member]
Jun. 30, 2011
Not Designated as Hedging Instrument [Member]
Foreign Exchange Forward [Member]
Dec. 31, 2010
Not Designated as Hedging Instrument [Member]
Foreign Exchange Forward [Member]
Jun. 30, 2011
Interest Rate Swap [Member]
Dec. 31, 2010
Interest Rate Swap [Member]
Jun. 30, 2011
12% Senior Notes due February 2014 [Member]
Dec. 31, 2010
12% Senior Notes due February 2014 [Member]
Jun. 30, 2011
5.625 % Senior Notes due July 2013 [Member]
Dec. 31, 2010
5.625 % Senior Notes due July 2013 [Member]
Derivatives and Hedging Activities (Textuals) [Abstract]                          
Maximum original maturity period of Foreign Currency Forward Contracts less than 12 months                        
Fair value of foreign currency forward contracts, net current liability           $ 0 $ 0.3            
Mark to market adjustment to record Increase or decrease in the carrying amount of the 12% and 5.625% Senior Notes               8 6        
Reduction in interest expenses   $ 1 $ 1 $ 2 $ 2                
Derivatives And Hedging Activities (Textual) [Abstract]                          
Debt interest rate                   12.00% 12.00% 5.625% 5.625%