Inventories (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2015	Sep. 30, 2014
Inventories disclosure
Raw materials	$ 18,556	$ 14,188	$ 18,556
Work in process	1,506	5,965	1,506
Finished goods	17,155	20,457	17,155
Inventories included in current assets	37,217	40,610	37,217
Raw materials	2,654	7,798	2,654
Total Inventories	39,871	48,408	39,871
Inventory expensed			869	$ 1,119
Makena
Inventories disclosure
Inventory expensed			3,600
U.S. Feraheme
Inventories disclosure
Inventory expensed			600
Fair Value Adjustment to Inventory
Inventories disclosure
Inventories		30,300
Fair value adjustment		$ 26,100
Cost of Sales | Fair Value Adjustment to Inventory
Inventories disclosure
Fair value adjustment	$ 1,600		7,500
Inventory expensed			$ 3,300