Accounts Receivable (Details) (USD $)	Dec. 31, 2011	Dec. 31, 2010
Accounts receivable balances on product sales from different countries
Accounts receivable, net current	$ 584,603,000	$ 605,329,000
Italy [Member]
Accounts receivable balances on product sales from different countries
Accounts receivable, net current	19,400,000	103,200,000
Accounts receivable, net non-current	48,700,000	14,800,000
Accounts Receivable, Total	68,100,000	118,000,000
Spain [Member]
Accounts receivable balances on product sales from different countries
Accounts receivable, net current	68,500,000	70,800,000
Accounts receivable, net non-current	65,500,000	29,800,000
Accounts Receivable, Total	134,000,000	100,600,000
Portugal [Member]
Accounts receivable balances on product sales from different countries
Accounts receivable, net current	20,600,000	17,800,000
Accounts receivable, net non-current	12,300,000	5,500,000
Accounts Receivable, Total	32,900,000	23,300,000
Greece [Member]
Accounts receivable balances on product sales from different countries
Accounts receivable, net current	4,000,000	3,900,000
Accounts receivable, net non-current	0	0
Accounts Receivable, Total	$ 4,000,000	$ 3,900,000