Income taxes (Details) $ in Thousands	12 Months Ended
Oct. 31, 2018 USD ($)
Ordinary taxable income distributed as dividends (percentage)	100.00%
Capital gain on sale of apartments	$ 15,400
Acquisition costs	19,600
Regency Club Acquisition [Member]
Amount tax basis lower than the acquisition price	$ 18,900

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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