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Investments in Real Estate - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified		3 Months Ended	1 Months Ended
	Mar. 31, 2014 Property	Mar. 31, 2014 King's Landing Property	Jan. 31, 2014 Reserve at Eagle Ridge Property	Feb. 28, 2014 OKC Portfolio Property	May 07, 2014 Carrington Subsequent event Property	Mar. 31, 2014 Real Estate Investment Property
Real Estate Properties [Line Items]
Number of multifamily property owned	17			5		17
Number of units located with multifamily properties	4,970	152	370	1,658	202	4,790
Purchased price of a property		$ 32,700	$ 29,000	$ 65,000	$ 21,500
Loans payable on real estate	69,512	21,200		45,763
Loan payable interest rate		4.00%		5.60%
Loan payable maturity date		Jun. 01, 2021		Apr. 01, 2016
Fair value of properties acquired	130,091			70,431
Fair value of debt assumed	70,859			48,312
Gain (loss) on assets				$ 2,882

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Stated maturity date of the mortgage loan receivable on real estate, in CCYY-MM-DD format.

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The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans.

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