Accounts Receivable (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Accounts receivable balances on product sales from different countries
Current balance included within accounts receivable, net	$ 1,002,328,000	$ 824,406,000
Spain [Member]
Accounts receivable balances on product sales from different countries
Current balance included within accounts receivable, net	54,700,000	113,300,000
Non-current balance included within investments and other assets	10,000,000	6,800,000
Total	64,700,000	120,100,000
Italy [Member]
Accounts receivable balances on product sales from different countries
Current balance included within accounts receivable, net	79,300,000	76,100,000
Non-current balance included within investments and other assets	1,300,000	2,400,000
Total	80,600,000	78,500,000
Portugal [Member]
Accounts receivable balances on product sales from different countries
Current balance included within accounts receivable, net	10,700,000	10,400,000
Non-current balance included within investments and other assets	12,700,000	8,200,000
Total	$ 23,400,000	$ 18,600,000