Debt - Warehouse Credit Facility (Details) - Revolving Credit Facility - Line of Credit - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Nov. 30, 2022	Jan. 31, 2026	Jan. 31, 2025	Apr. 30, 2026
Warehouse credit facility
Debt Instrument [Line Items]
Total commitment amount	$ 200.0			$ 250.0
Minimum utilization	50.00%			40.00%
Unused capacity, commitment fee	0.50%
Commitment fee	$ 2.0	$ 2.8	$ 1.4
Warehouse Credit Facility, Class A Facility
Debt Instrument [Line Items]
Total commitment amount	171.1
Warehouse Credit Facility, Class B Facility
Debt Instrument [Line Items]
Total commitment amount	$ 28.9