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Leases - Summary of Information Related to Remaining Lease Term and Discount Rate (Details) | Jan. 31, 2021 | Jan. 31, 2020
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Leases [Abstract] |  |
Weighted average remaining lease term, Operating leases (in years) | 5 years 9 months 7 days | 6 years 8 months 1 day
Weighted average remaining lease term, Finance leases (in years) | 2 years 4 months 6 days | 2 years 11 months 4 days
Weighted average discount rate, Operating leases | 5.27% | 5.40%
Weighted average discount rate, Finance leases | 4.44% | 4.56%

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