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Inventories (Details) - USD ($)
$ in Thousands
Jul. 31, 2015
Oct. 31, 2014
Inventory Disclosure [Abstract]    
Raw materials $ 34,853 $ 25,460
Work in process [1] 40,718 30,435
Inventory, Net 75,571 55,895
Completed Standard Component $ 28,800 $ 19,200
[1] Work-in-process includes the standard components of inventory used to build the typical modules or module components that are intended to be used in future power plant orders or to service our service agreements. Included in work-in-process as of July 31, 2015 and October 31, 2014 was $28.8 million and $19.2 million, respectively, of completed standard components.