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Rental Income (Schedule of Minimum Rental Income) (Details)
$ in Thousands
Jul. 31, 2021
USD ($)
Operating Leases, Future Minimum Payments Receivable [Abstract]  
2021 $ 17,294 [1]
2022 15,985
2023 13,674
2024 11,229
2025 9,077
Thereafter 27,749
Total $ 95,008
[1] Amount represents full fiscal year