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Rental Income (Schedule of Minimum Rental Income) (Details)
$ in Thousands
Apr. 30, 2021
USD ($)
Operating Leases, Future Minimum Payments Receivable [Abstract]  
2021 $ 17,006 [1]
2022 14,817
2023 12,479
2024 10,297
2025 8,723
Thereafter 27,043
Total $ 90,365
[1] Amount represents full fiscal year