Retirement Plans (Narrative) (Details) - United States - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Minimum annual contributions per employee, percent			1.00%
Maximum annual contributions per employee, percent			75.00%
Number of common shares held	1,067,754	1,105,376	1,067,754	1,105,376
Contributions by employer	$ 456	$ 387	$ 1,470	$ 1,165