Property and Equipment - Additional Information (Details) - USD ($) $ in Thousands  | 
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2019  | 
Sep. 30, 2018  | 
Sep. 30, 2019  | 
Sep. 30, 2018  | 
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| Property Plant And Equipment [Line Items] | ||||
| Depreciation expense | $ 482 | $ 371 | $ 944 | $ 765 | 
| Internal use assets | General and administrative | ||||
| Property Plant And Equipment [Line Items] | ||||
| Depreciation expense | 138 | 199 | 323 | 421 | 
| Internally developed software to be sold | Other direct costs of revenue | ||||
| Property Plant And Equipment [Line Items] | ||||
| Depreciation expense | $ 344 | $ 172 | $ 621 | $ 344 | 
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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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