Rental Income (Schedule of Minimum Rental Income) (Details) $ in Thousands	Jul. 31, 2020 USD ($)
Operating Leases, Future Minimum Payments Receivable [Abstract]
2020	$ 19,443	[1]
2021	18,137
2022	14,993
2023	12,384
2024	10,179
Thereafter	34,883
Total	$ 110,019

[1] Amount represents full fiscal year