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Leases - Composition of Rental Operations Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jul. 31, 2020
Jul. 31, 2020
Leases [Abstract]    
Operating lease revenue $ 1,078 $ 3,235
Variable lease revenue 94 242
Total lease revenue $ 1,172 $ 3,477