Leases - Additional Information (Details)	12 Months Ended
	Jan. 31, 2022 USD ($) Lease	Jan. 31, 2021 USD ($)
Lessee Lease Description [Line Items]
Finance lease agreements term	4 years
Sublease expiration year	2025
Undiscounted future payments	$ 43,000,000.0
Operating lease not yet commenced, description	As of January 31, 2022, we had two operating leases for our office spaces that have not yet commenced.
Operating leases, not yet commenced | Lease	2
Financing lease not yet commenced, description	We did not have any finance leases that have not yet commenced as of January 31, 2022.
Finance leases, not yet commenced	$ 0
Other Long-term Liabilities
Lessee Lease Description [Line Items]
Asset retirement obligation	$ 3,600,000	$ 3,100,000
Minimum
Lessee Lease Description [Line Items]
Operating lease expiration year	2023
Total lease term of sublease arrangement	11 months
Operating lease term	1 year
Maximum
Lessee Lease Description [Line Items]
Operating lease expiration year	2029
Total lease term of sublease arrangement	96 months
Operating lease term	10 years