Property and Equipment - Additional Information (Details) - USD ($) $ in Thousands  | 
3 Months Ended | |
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Jun. 30, 2019  | 
Jun. 30, 2018  | 
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| Property Plant And Equipment [Line Items] | ||
| Depreciation expense | $ 462 | $ 394 | 
| Internal use assets | General and administrative | ||
| Property Plant And Equipment [Line Items] | ||
| Depreciation expense | 185 | 222 | 
| Internally developed software to be sold | Other direct costs of revenue | ||
| Property Plant And Equipment [Line Items] | ||
| Depreciation expense | $ 277 | $ 172 | 
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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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