v3.25.1
Retirement Plans (Narrative) (Details) - United States - USD ($)
$ in Thousands
3 Months Ended
Apr. 30, 2025
Apr. 30, 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 1,063,340 1,240,365
Contributions by employer $ 545 $ 441