Consolidated Balance Sheet Detail - Summary of Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Mar. 31, 2016
Payables And Accruals [Abstract]
Accrued legal and professional fees	$ 881	$ 102
Accrued interest	217	225
Goods received not invoiced	1,399	911
Accrued capital expenditure	3,148	2,253
Accrued development expenditure	1,576	3,533
Other accrued expenses	1,882	2,156
Total accrued expenses and other current liabilities	$ 9,103	$ 9,180