Balance Sheet Account Detail - Deferred Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015
Deferred Revenue Arrangement [Line Items]
Deferred revenue	$ 2,908	$ 6,513
Mundipharma [Member]
Deferred Revenue Arrangement [Line Items]
Deferred revenue	2,472	0
FUSILEV [Member]
Deferred Revenue Arrangement [Line Items]
Deferred revenue	0	6,083	$ 9,900
Revenue recognized	6,100	3,800
Dr. Reddy
Deferred Revenue Arrangement [Line Items]
Deferred revenue	$ 436	$ 430