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SELECTED FINANCIAL STATEMENT INFORMATION SELECTED FINANCIAL STATEMENT INFORMATION (Accumulated Other Comprehensive Loss) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jul. 31, 2020
Jul. 31, 2019
Jul. 31, 2020
Jul. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Starting accumulated other comprehensive loss     $ (16,739)  
Unrealized gain     12,228  
Amortization of unrealized loss on defined benefit pension plan, net of tax $ 21 $ 6 60 $ 18
Ending accumulated other comprehensive loss (4,451)   (4,451)  
Foreign Currency Translation [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Starting accumulated other comprehensive loss     (14,989)  
Unrealized gain     12,228  
Ending accumulated other comprehensive loss (2,761)   (2,761)  
Pension Benefit Obligation [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Starting accumulated other comprehensive loss     (1,750)  
Amortization of unrealized loss on defined benefit pension plan, net of tax     60  
Ending accumulated other comprehensive loss $ (1,690)   $ (1,690)