Accounts Receivable (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Accounts receivable balances on product sales from different countries
Current balance included within accounts receivable, net	$ 891,396,000	$ 686,848,000
Spain [Member]
Accounts receivable balances on product sales from different countries
Current balance included within accounts receivable, net	94,100,000	78,900,000
Non-current balance included within accounts receivable, net	18,200,000	0
Total	112,300,000	78,900,000
Italy [Member]
Accounts receivable balances on product sales from different countries
Current balance included within accounts receivable, net	89,200,000	94,400,000
Non-current balance included within accounts receivable, net	2,500,000	10,200,000
Total	91,700,000	104,600,000
Portugal [Member]
Accounts receivable balances on product sales from different countries
Current balance included within accounts receivable, net	12,500,000	16,600,000
Non-current balance included within accounts receivable, net	18,100,000	7,400,000
Total	$ 30,600,000	$ 24,000,000