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Inventories (Details) - USD ($)
$ in Thousands
3 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Oct. 31, 2019
Inventory Disclosure [Abstract]      
Raw materials $ 106,522   $ 99,041
Work-in-process 11,728   13,657
Finished goods 219,907   226,622
Deferred cost of goods sold 49,256   53,051
Gross inventories 387,413   392,371
Provision for excess and obsolescence (44,740)   (47,322)
Inventories, net 342,673   $ 345,049
Provisions $ 6,699 $ 4,673