Segment and Enterprise Wide Disclosures - Additional Information (Detail) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
|
Mar. 31, 2020
USD ($)
Segment
|
Mar. 31, 2019
USD ($)
|
Mar. 31, 2018 |
|
| Segment Reporting Information [Line Items] | |||
| Number of business segments | Segment | 1 | ||
| International | |||
| Segment Reporting Information [Line Items] | |||
| Long-lived assets | $ | $ 46.7 | $ 43.4 | |
| Customer Concentration Risk | Revenue | International | |||
| Segment Reporting Information [Line Items] | |||
| Percentage of revenue accounted | 16.00% | 14.00% | 11.00% |