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Inventories - Schedule of Inventories (Detail) - USD ($)
$ in Thousands
Apr. 30, 2016
Oct. 31, 2015
Inventory Disclosure [Abstract]    
Raw materials and component parts $ 100,262 $ 97,215
Work-in-process 38,078 35,509
Finished goods 140,969 128,816
Inventories - gross 279,309 261,540
Obsolescence and other reserves (31,836) (28,230)
LIFO reserve (6,828) (7,638)
Inventories - net $ 240,645 $ 225,672