Investment in Unconsolidated Joint Ventures (CL Realty, L.L.C.) (Details) (CL Realty, USD $)	3 Months Ended
	Dec. 31, 2011	Dec. 31, 2013 Venture
Schedule of Equity Method Investments [Line Items]
Number of joint ventures (ventures)		2
Share of impairment charges	$ 13,600,000
Cash balance of joint venture		$ 752,000
Forestar [Member]
Schedule of Equity Method Investments [Line Items]
Ownership Percentage of Partner in Joint Venture		5000.00%
Residential Real Estate [Member]
Schedule of Equity Method Investments [Line Items]
Number of joint ventures (ventures)		1
Land
Schedule of Equity Method Investments [Line Items]
Number of real estate properties owned by venture (properties)		1