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Investment In Unconsolidated Ventures - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) property venture	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Number of ventures under ownership interest using equity method | venture	16
Gain of sale of assets	$ 166,747	$ 1,585	$ 29,512
Distributions	13,419	24,909	7,518
Investment in unconsolidated ventures	6,089	26,349	14,692
Fees for services	$ 2,466	$ 1,856	$ 2,275
Variable Interest Entity, Primary Beneficiary
Number of ventures that are a VIE | venture	0
FMF Peakview
Net proceeds	$ 13,917
Gain of sale of assets	$ 10,363
FMF Peakview | Multi Family Property
Number of units of multifamily project | property	304

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Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2443-110228

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585

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Cash received for the sale of real estate that is not part of an investing activity during the current period.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585

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