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Derivative Instruments and Hedging Activities (Details 1) (Derivative not designated as a hedging instrument [Member], Equity contract (the Warrant) [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Derivative not designated as a hedging instrument [Member] \| Equity contract (the Warrant) [Member]
Summary of the effect of derivative instrument not designated as hedging instruments on income
Losses recognized in other loss, net	$ 4,335		$ 4,274

The amount of net gains and losses recognized in income during the period on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges, on derivative instruments designated and qualifying as hedging instruments in cash flow hedges, and on derivative instruments not designated as hedging instruments.

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