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Leases Lessor (Details)
$ in Thousands
12 Months Ended
Jul. 31, 2020
USD ($)
Lessor, Lease, Description [Line Items]  
2021 $ 7,492
2022 6,221
2023 5,179
2024 5,115
2025 5,079
Thereafter 16,995
Total future lease payments receivable 46,081
Property Subject to or Available for Operating Lease, Gross 64,800
Property Subject to or Available for Operating Lease, Accumulated Depreciation 900
Operating Lease, Lease Income $ 6,200