Sales price of property held for sale.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Date the entity disposed of a business or a group of assets, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

The net gain (loss) resulting from sales and other disposals of real estate owned for investment purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.14(d))
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

+ Details

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Period Type:	duration

- Definition

The cash inflow from the sale of real estate held-for-investment and real estate joint ventures.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Real Estate Investments - Summary of Sold Properties (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Real Estate Properties [Line Items]
Sales Price	$ 83,900	$ 64,300	$ 83,900	$ 64,300
Net proceeds from sales of real estate			82,736	63,220
Gain on sales of real estate	19,896	$ 16,370	$ 19,896	$ 16,370
The Miramar Apartment \| Dallas \| Texas
Real Estate Properties [Line Items]
Date of Sale			Apr. 03, 2017
Sales Price	16,550		$ 16,550
Net proceeds from sales of real estate			16,326
Gain on sales of real estate			$ 6,368
Toscana \| Dallas \| Texas
Real Estate Properties [Line Items]
Date of Sale			Apr. 03, 2017
Sales Price	13,250		$ 13,250
Net proceeds from sales of real estate			13,040
Gain on sales of real estate			$ 4,283
The Grove at Alban \| Frederick \| Maryland
Real Estate Properties [Line Items]
Date of Sale			Apr. 03, 2017
Sales Price	27,500		$ 27,500
Net proceeds from sales of real estate			27,021
Gain on sales of real estate			$ 4,514
Twelve 6 Ten at the Park \| Dallas \| Texas
Real Estate Properties [Line Items]
Date of Sale			Apr. 27, 2017
Sales Price	$ 26,600		$ 26,600
Net proceeds from sales of real estate			26,349
Gain on sales of real estate			$ 4,731