Retirement Plans (Periodic Pension Cost) (Details) - Pension Plan - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024
Components of Net Cost
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	325	311	975	933
Expected return on plan assets	(208)	(167)	(624)	(500)
Plan settlement	0	0	0	0
Amortization of prior service cost	0	0	0	0
Recognized net actuarial gain	(90)	(38)	(270)	(113)
Benefit cost	$ 27	$ 106	$ 81	$ 320