Net Gain (Loss) on Land Held for Divestiture Activity (Details Textuals) (USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013
Net Gain (Loss) on Land Held for Divestiture Activity [Line Items]
Bad debt expense	$ 9,000,000	$ 9,000,000
Net gain on land held for divestiture activity of unconsolidated entities	79,000	2,590,000
North Carolina land [Member]
Net Gain (Loss) on Land Held for Divestiture Activity [Line Items]
Area of land (in acres)	1,000	1,000
Fair value of collateral	4,100,000	4,100,000
Bad debt expense	9,000,000	9,000,000
Bad debt expense, net of noncontrolling interests	8,300,000	8,300,000
Bad debt expense, after tax	$ 4,980,000	$ 4,980,000