Real Estate Properties (Details) ft² in Thousands, $ in Thousands	9 Months Ended
Jun. 30, 2016 USD ($) ft²
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Real estate property, beginning balance	$ 615,586
Additions	205,350
Capitalized Costs and Improvements	29,227
Depreciation	(16,470)
Sales	(137,688)
Real estate property, ending balance	696,005
Multi-family
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Real estate property, beginning balance	605,040
Additions	205,350
Capitalized Costs and Improvements	29,225
Depreciation	(16,390)
Sales	(137,688)
Real estate property, ending balance	685,537
Land
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Real estate property, beginning balance	7,972
Additions	0
Capitalized Costs and Improvements	2
Depreciation	0
Sales	0
Real estate property, ending balance	7,974
Shopping centers/Retail \| Variable Interest Entity, Primary Beneficiary \| RBHTRB Newark Holdings LLC
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Real estate property, beginning balance	2,574
Additions	0
Capitalized Costs and Improvements	0
Depreciation	(80)
Sales	0
Real estate property, ending balance	$ 2,494
Newark, NJ
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Net Rentable Area \| ft²	303

Represents the depreciation and amortization in real estate investment property.

No definition available.

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- Definition

Represents the aggregate of the amount of improvements and costs capitalized to real estate investments during the period.

+ References

No definition available.

+ Details

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- Definition

Amount of increase in real estate investments from acquisitions other than through foreclosure for entities with a substantial portion of business acquiring and holding investment real estate. Excludes improvements and costs capitalized to real estate investments during the period.

+ References

No definition available.

+ Details

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- Definition

Reflects for the period the total of the carrying amount of the commercial, industrial and residential land and buildings sold plus certain overhead and other costs incurred to place the real estate in saleable condition, capitalized interest costs in the properties sold, and inventory impairment losses recognized. This element would most likely be used by an entity whose principal activities involve real estate or which has significant real estate operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Definition

Net rentable area for properties owned.

+ References

No definition available.

+ Details

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- Definition

Amount of real estate investments, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; (7) other real estate investments; (8) real estate joint ventures; and (9) unconsolidated real estate and other joint ventures not separately presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(d))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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