Consolidated Balance Sheet Detail - Summary of Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Mar. 31, 2015
Payables And Accruals [Abstract]
Accrued legal and professional fees	$ 182	$ 3,758
Accrued interest	225	112
Goods received not invoiced	933	787
Accrued capital expenditure	230	972
Accrued development expenditure	1,786	2,110
Other accrued expenses	636	1,048
Total accrued expenses and other current liabilities	$ 3,992	$ 8,787