Impairment Losses (Details) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012
Impairment losses in cost and expenses on the statement of operations
Number of residential projects		12
Number of operating properties		2
Investment in Verde Realty
Impairment losses in cost and expenses on the statement of operations
Impairment losses		$ 488,000
Impairment loss on investment in unconsolidated joint ventures			3,500,000
Impairment moved to discontinued operations
Impairment losses in cost and expenses on the statement of operations
Impairment losses	104,300,000
Impairment losses, reclassified to discontinued operations		3,300,000	7,600,000
Temco Associates
Impairment losses in cost and expenses on the statement of operations
Impairment losses			14,600,000
Impairment loss on investment in unconsolidated joint ventures			608,000
CL Realty
Impairment losses in cost and expenses on the statement of operations
Impairment losses			$ 13,600,000