Joint Ventures - Condensed Balance Sheets of Consolidated JV (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Equity Method Investments and Joint Ventures [Abstract]
Cash	$ 2,598	$ 668
Restricted cash	169	248
Other assets	366	542
Land under development	3,099	5,810
Total assets	6,232	7,268
Debt	661	3,365
Accrued expenses	1,374	862
Equity	4,197	3,041
Total liabilities and equity	$ 6,232	$ 7,268