Inventories (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Nov. 12, 2014
Inventories disclosure
Raw materials	$ 19,673	$ 14,188
Work in process	1,985	5,965
Finished goods	18,987	20,457
Inventories included in current assets	40,645	40,610
Raw materials		7,798
Total Inventories	40,645	48,408
Decrease in inventories	7,800
Inventory expensed	1,235	1,309	$ 2,175
Single-Dose Preservative-Free Formulation of Makena
Inventories disclosure
Total Inventories	3,800
Fair value adjustment included in the inventory	1,500
Lumara Health
Inventories disclosure
Inventory acquired				$ 30,300
Inventory, fair value step-up adjustment	12,000			$ 26,100
Research and Development Expense | Feraheme Inventory
Inventories disclosure
Inventory expensed		$ 700
Cost of Sales | Makena Inventory
Inventories disclosure
Inventory expensed	3,600
Inventory fair value adjustment, included in inventory expensed	3,300
Cost of Sales | Feraheme Inventory
Inventories disclosure
Inventory expensed	$ 1,000