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Commitments and contingencies (Schedule of Minimum Rental Income) (Details)
$ in Thousands
Oct. 31, 2021
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2022 $ 5,719
2023 5,083
2024 3,970
2025 3,298
2026 2,550
Thereafter 3,313
Total $ 23,933