Investment in Unconsolidated Ventures - Summarized Income Statement Information (Parenthetical) (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Schedule of Equity Method Investments [Line Items]
Unrecognized basis difference on equity method investment	$ 1,648,000
CL Realty [Member]
Schedule of Equity Method Investments [Line Items]
Unrecognized basis difference on equity method investment	2,089,000
Equity Method Investments [Member]
Schedule of Equity Method Investments [Line Items]
Long-term Debt, Current Maturities	77,510,000	37,966,000
Equity Method Investments [Member] | Non-recourse Debt [Member]
Schedule of Equity Method Investments [Line Items]
Long-term Debt, Current Maturities	$ 37,795,000	$ 37,822,000