Pension and Retirement Savings Plan - Components of Net Periodic Pension Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Selling, General and Administrative Expense	Selling, General and Administrative Expense	Selling, General and Administrative Expense
Service cost	$ 1,138	$ 1,131	$ 1,274
Interest cost	57
Expected return on assets	(439)	(395)	(372)
Actuarial gain recognized due to partial settlement	(105)		(43)
Amortization of prior service costs	71	74	73
Net Periodic Pension Cost	$ 722	$ 810	$ 932