Restructuring Charge - Summary of Reconciliation of Changes in Restructuring Reserve (Detail) - USD ($) $ in Thousands |
9 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Restructuring And Related Activities [Abstract] | ||
| Balance at beginning of period | $ 18 | $ 120 |
| Expense for restructuring | 316 | |
| Amounts paid for restructuring | $ (18) | (336) |
| Balance at end of period | $ 100 | |
| X | ||||||||||
- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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