Property and Equipment - Additional Information (Detail) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Continuing Operations | ||||
| Property Plant And Equipment [Line Items] | ||||
| Depreciation expense | $ 223 | $ 51 | $ 437 | $ 101 |