Commitments and Contingencies (Details) $ in Thousands				3 Months Ended	12 Months Ended
	Jul. 31, 2025 USD ($)	Jan. 14, 2025 USD ($)	Apr. 08, 2020 defendant	Jul. 31, 2025 USD ($)	Jan. 31, 2024 USD ($)	Jan. 31, 2025 USD ($)	Jul. 17, 2023 USD ($)	Jan. 31, 2023 USD ($)	Nov. 17, 2021 lawsuit
Other Commitments [Line Items]
Loss contingency, pending claims, number | lawsuit									3
SEC Related Matters
Other Commitments [Line Items]
Loss contingency accrual reversed				$ 18,000
SEC Related Matters | Pending Litigation
Other Commitments [Line Items]
Loss contingency accrual						$ 18,000
Violation Of Securities Act Section 10(b), 20(a), and Rule 10b-5 | Pending Litigation
Other Commitments [Line Items]
Loss contingency accrual						$ 1,350
Loss contingency, estimate of possible loss							$ 150,000
Violation Of Securities Act Section 10(b), 20(a), and Rule 10b-5 | Pending Litigation | Maximum
Other Commitments [Line Items]
Litigation settlement, amount awarded to other party		$ 1,350
Violation Of Securities Act Section 10(b), 20(a), and Rule 10b-5 | Settled Litigation
Other Commitments [Line Items]
Loss contingency accrual								$ 7,500
Litigation settlement, amount awarded to other party	$ 1,350
Payments for legal settlements					$ 60,000
Payments for legal settlements, gross					150,000
Payments for legal settlements, net of insurance payment					90,000
Loss contingency, loss in period					$ 52,500
Violation Of Securities Act Section 10(b), 20(a), and Rule 10b-5
Other Commitments [Line Items]
Loss contingency, number of defendants | defendant			2