Fair Value Measurements - Other Financial Instruments (Details) - USD ($) $ in Thousands	Oct. 31, 2025	Jan. 31, 2025
Other debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value disclosure, off-balance-sheet risks, amount, liability	$ 1,479	$ 933
Convertible notes | Convertible notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value disclosure, off-balance-sheet risks, amount, liability	0	359,200
Warehouse credit facility | Line of Credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value disclosure, off-balance-sheet risks, amount, liability	155,728	210,995
ABL facility | Line of Credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value disclosure, off-balance-sheet risks, amount, liability	30,440	0
Trade loan facility | Trade loan facility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value disclosure, off-balance-sheet risks, amount, liability	0	45,000
2022 promissory note | 2022 promissory note
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value disclosure, off-balance-sheet risks, amount, liability	$ 0	$ 179,932