Amount of mortgage loans, assumed at the acquisition date.

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Number of voting shares.

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Out-of-pocket expenses payable.

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Percentage of sales fee.

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Percentage of voting shares held.

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Termination fee payable.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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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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The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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Subsequent events (Details) - USD ($)	Jan. 14, 2020	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Subsequent Event [Line Items]
Escrow deposit		$ 2,135,000	$ 2,435,000	$ 4,007,000
Subsequent Event [Member] \| Purchase and Sale Agreement Kushner Companies [Member]
Subsequent Event [Line Items]
Number of voting shares	839,839
Percentage of voting shares held	12.40%
Termination fee payable	$ 3,500,000
Subsequent Event [Member] \| Purchase and Sale Agreement Kushner Companies [Member] \| Maximum [Member]
Subsequent Event [Line Items]
Out-of-pocket expenses payable	$ 2,000,000
Subsequent Event [Member] \| Purchase and Sale Agreement Kushner Companies [Member] \| Seven Apartment Properties [Member]
Subsequent Event [Line Items]
Percentage of ownership interest	100.00%
Aggregate purchase price	$ 266,500,000
Mortgage loans assumed	76,815,000
Total cash consideration paid	208,325,000
Subsequent Event [Member] \| Purchase and Sale Agreement Kushner Companies [Member] \| Seven Apartment Properties [Member] \| Letter of Credit [Member]
Subsequent Event [Line Items]
Escrow deposit	$ 15,000,000
Subsequent Event [Member] \| Purchase and Sale Agreement Kushner Companies [Member] \| Seven Apartment Properties Except Pierre Towers and Westwood Hills [Member]
Subsequent Event [Line Items]
Percentage of ownership interest	100.00%
Subsequent Event [Member] \| Purchase and Sale Agreement Kushner Companies [Member] \| Pierre Towers, Hackensack [Member]
Subsequent Event [Line Items]
Percentage of ownership interest	65.00%
Aggregate purchase price	$ 80,500,000
Subsequent Event [Member] \| Purchase and Sale Agreement Kushner Companies [Member] \| Westwood Hills, Westwood [Member]
Subsequent Event [Line Items]
Percentage of ownership interest	40.00%
Subsequent Event [Member] \| Purchase and Sale Agreement Kushner Companies [Member] \| Berdan Court, Wayne [Member]
Subsequent Event [Line Items]
Aggregate purchase price	$ 42,000,000
Subsequent Event [Member] \| Purchase and Sale Agreement Kushner Companies [Member] \| The Regency Club, Middletown [Member]
Subsequent Event [Line Items]
Aggregate purchase price	$ 27,250,000
Subsequent Event [Member] \| Amendment To Management Agreement [Member] \| Robert S. Hekemian [Member]
Subsequent Event [Line Items]
Percentage of sales fee	1.65%
Subsequent Event [Member] \| Amendment To Management Agreement [Member] \| Maximum [Member] \| Robert S. Hekemian [Member]
Subsequent Event [Line Items]
Percentage of sales fee	4.50%
Subsequent Event [Member] \| Amendment To Management Agreement [Member] \| Minimum [Member] \| Robert S. Hekemian [Member]
Subsequent Event [Line Items]
Percentage of sales fee	2.50%