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Leases - Lessor Arrangements, Narrative (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Apr. 30, 2020
USD ($)
Apr. 30, 2020
USD ($)
Minimum    
Lessor, Lease, Description [Line Items]    
Remaining terms of operating leases 1 month 1 month
Maximum    
Lessor, Lease, Description [Line Items]    
Remaining terms of operating leases 23 years 23 years
Assets under Operating Leases    
Lessor, Lease, Description [Line Items]    
Depreciation expense $ 160 $ 326