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Notes payable construction loan Blue Ridge apartments (Detail) (USD $)	Mar. 28, 2012
Notes payable construction loan Blue Ridge apartments
Construction loan Blue Ridge apartments	$ 24,200,000
Number of units in Blue Ridge Apartments	290
Notes accrues interest, Blue Ridge apartments	5.37%

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Construction loan Blue Ridge apartments

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Notes accrues interest, Blue Ridge apartments

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Number of units in Blue Ridge Apartments

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