Pension and Retirement Savings Plan - Weighted Average Assumptions Used to Calculate Net Periodic Pension Cost (Details)	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	1.50%	1.90%	0.20%
Salary progression rate	1.10%	1.10%	1.10%
Expected long-term rate of return on plan assets	3.00%	2.50%	1.50%