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SELECTED FINANCIAL STATEMENT INFORMATION (Inventories) (Details) - USD ($)
$ in Thousands
Jul. 31, 2015
Oct. 31, 2014
Inventory [Line Items]    
Finished products $ 113,626 $ 106,229
Work in process 32,871 30,056
Materials, parts, assemblies and supplies 87,598 79,163
Contracts in process 4,508 2,594
Less: Billings to date (2,368) 0
Inventories, net of valuation reserves $ 236,235 $ 218,042