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Inventories - Components of Inventories (Details) - USD ($) $ in Thousands | Jan. 31, 2021 | Oct. 31, 2020
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Inventory Disclosure [Abstract] |  |  |
Raw materials |  | $ 25,776 | $ 21,726
Work-in-process | [1] | 40,711 | 38,231
Inventories |  | 66,487 | 59,957
Inventories - short-term |  | (61,901) | (50,971)
Inventories - long-term | [2] | $ 4,586 | $ 8,986
[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 project asset construction or power plant orders or for use under the Company’s service agreements. Included in work-in-process as of January 31, 2021 and October 31, 2020 was $26.7 million and $19.6 million, respectively, of completed standard components and modules.
[2] | Long-term inventory includes modules that are contractually required to be segregated for use as replacement modules for specific project asset s.

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