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Accounts Receivable (Details)
 1 Months Ended 6 Months Ended
May 31, 2011
EUR (€)
Jun. 30, 2011
USD ($)
Dec. 31, 2010
USD ($)
Jun. 30, 2011
Accounts Receivable Net [Member]
Italy [Member]
USD ($)
Dec. 31, 2010
Accounts Receivable Net [Member]
Italy [Member]
USD ($)
Jun. 30, 2011
Accounts Receivable Net [Member]
Spain [Member]
USD ($)
Dec. 31, 2010
Accounts Receivable Net [Member]
Spain [Member]
USD ($)
Jun. 30, 2011
Accounts Receivable Net [Member]
Portugal [Member]
USD ($)
Dec. 31, 2010
Accounts Receivable Net [Member]
Portugal [Member]
USD ($)
Jun. 30, 2011
Accounts Receivable Net [Member]
Greece [Member]
USD ($)
Dec. 31, 2010
Accounts Receivable Net [Member]
Greece [Member]
USD ($)
Jun. 30, 2011
Investments And Other Assets [Member]
Italy [Member]
USD ($)
Dec. 31, 2010
Investments And Other Assets [Member]
Italy [Member]
USD ($)
Jun. 30, 2011
Investments And Other Assets [Member]
Spain [Member]
USD ($)
Dec. 31, 2010
Investments And Other Assets [Member]
Spain [Member]
USD ($)
Jun. 30, 2011
Investments And Other Assets [Member]
Portugal [Member]
USD ($)
Dec. 31, 2010
Investments And Other Assets [Member]
Portugal [Member]
USD ($)
Jun. 30, 2011
Investments And Other Assets [Member]
Greece [Member]
USD ($)
Dec. 31, 2010
Investments And Other Assets [Member]
Greece [Member]
USD ($)
Jun. 30, 2011
Italy [Member]
USD ($)
Dec. 31, 2010
Italy [Member]
USD ($)
Jun. 30, 2011
Spain [Member]
USD ($)
Dec. 31, 2010
Spain [Member]
USD ($)
Jun. 30, 2011
Portugal [Member]
USD ($)
Dec. 31, 2010
Portugal [Member]
USD ($)
Jun. 30, 2011
Greece [Member]
USD ($)
Dec. 31, 2010
Greece [Member]
USD ($)
Account receivable balance from different countries                                                      
Accounts Receivable, Total       $ 116,500,000 $ 103,200,000 $ 81,700,000 $ 70,800,000 $ 23,900,000 $ 17,800,000 $ 10,700,000 $ 3,900,000 $ 11,300,000 $ 14,800,000 $ 36,700,000 $ 29,800,000 $ 7,400,000 $ 5,500,000 $ 0 $ 0 $ 127,800,000 $ 118,000,000 $ 118,400,000 $ 100,600,000 $ 31,300,000 $ 23,300,000 $ 10,700,000 $ 3,900,000
Accounts Receivable (Textuals) [Abstract]                                                      
Payment terms of accounts receivable arising from product sales   Between 30 and 90 days                                                  
Rescue package approved term 3 years                                                    
Rescue package approved amount 78,000,000,000                                                    
Accounts receivable outstanding for greater than one year   $ 53,500,000 $ 45,000,000