Investment in Unconsolidated Ventures - Additional Information (Detail) (USD $)	3 Months Ended							3 Months Ended			3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Mar. 31, 2014 Equity Method Investments [Member] Venture	Mar. 31, 2014 Multi Family Property [Member] Austin, Texas [Member] Property	Mar. 31, 2014 CREA FMF [Member]	Dec. 31, 2013 CREA FMF [Member]	Mar. 31, 2014 CREA FMF [Member] Nashville, Tennessee [Member]	Jan. 17, 2014 CREA FMF [Member] Nashville, Tennessee [Member] Unit	Jan. 17, 2014 Construction Loans [Member] CREA FMF [Member] Nashville, Tennessee [Member]	Mar. 31, 2014 30 day LIBOR rate [Domain] Construction Loans [Member]	Mar. 31, 2014 Subsequent Event [Member]
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated ventures	$ 4,293,000	$ 745,000
Number of ventures under ownership interest using equity method				13
Distributions of return on investments and earnings	1,173,000	1,065,000
Performance bonds and letters of credit	26,640,000				26,577,000
Multifamily project					257				320
Contribution of Property								5,897,000
Payments to Acquire Additional Interest in Subsidiaries								7,191,000
Debt Instrument, Unused Borrowing Capacity, Amount										51,950,000
Debt instrument basis spread over variable rate											2.50%
Construction Loan										9,300,000
Investment in unconsolidated ventures	$ 50,459,000		$ 41,147,000			$ 5,655,000	$ 0
Construction Loan, Guaranty Of Repayment, Conditions Not Met, Percentage												25.00%
Construction Loan, Guaranty Of Repayment, Conditions Met, Percentage												0.00%