Inventory (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Work-in-process	$ 15,540	$ 17,555
Finished goods	6,124	1,783
Total inventories	21,664	19,338
Inventories - current	6,124	1,783	[1]
Inventories - non -current	$ 15,540	$ 17,555	[1]
JAKAFI
Shelf life for finished goods inventory, maximum	36 months
ICLUSIG
Shelf life for finished goods inventory, maximum	24 months

[1] The condensed consolidated balance sheet at December 31, 2015 has been derived from the audited financial statements at that date.