Leases - Additional Information (Details) $ in Millions	6 Months Ended
	Jul. 31, 2025 USD ($) Lease
Lessee Lease Description [Line Items]
Sublease expiration year	2029
Operating lease not yet commenced, description	As of July 31, 2025, we had two operating leases for office spaces that have not yet commenced.
Operating leases, not yet commenced | Lease	2
Undiscounted future payments | $	$ 25.0
Minimum
Lessee Lease Description [Line Items]
Operating lease expiration year	2027
Total lease term of sublease arrangement	24 months
Operating lease term	10 years
Maximum
Lessee Lease Description [Line Items]
Operating lease expiration year	2037
Total lease term of sublease arrangement	39 months
Operating lease term	11 years