Accounts Receivable (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Accounts receivable balances on product sales from different countries
Current balance included within accounts receivable, net	$ 686,848,000	$ 584,603,000
Spain
Accounts receivable balances on product sales from different countries
Current balance included within accounts receivable, net	78,900,000	68,500,000
Non-current balance included within accounts receivable, net	0	65,500,000
Total	78,900,000	134,000,000
Italy
Accounts receivable balances on product sales from different countries
Current balance included within accounts receivable, net	94,400,000	19,400,000
Non-current balance included within accounts receivable, net	10,200,000	48,700,000
Total	104,600,000	68,100,000
Portugal
Accounts receivable balances on product sales from different countries
Current balance included within accounts receivable, net	16,600,000	20,600,000
Non-current balance included within accounts receivable, net	7,400,000	12,300,000
Total	24,000,000	32,900,000
Greece
Accounts receivable balances on product sales from different countries
Current balance included within accounts receivable, net	600,000	4,000,000
Non-current balance included within accounts receivable, net	0	0
Total	$ 600,000	$ 4,000,000