Leases - Summary of Weighted Average Remaining Lease Term And Discount Rate (Detail) |
Mar. 31, 2021 |
Mar. 31, 2020 |
Mar. 31, 2019 |
|---|---|---|---|
| Lessee Disclosure [Abstract] | |||
| Weighted-average remaining lease term (in years) | 9 years 2 months 12 days | 10 years 6 months | 10 years 2 months 12 days |
| Weighted-average discount rate | 7.00% | 8.00% | 7.00% |