Discontinued Operations (Details 3) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Gain Loss on Equity Method Investments [Line Items]
Gain on disposition of unconsolidated entities	$ 0	$ 24,796,000
Westwood Reserve [Member]
Gain Loss on Equity Method Investments [Line Items]
Gain on disposition of unconsolidated entities	0	8,904,000
Legacy Crossroads [Member]
Gain Loss on Equity Method Investments [Line Items]
Gain on disposition of unconsolidated entities	0	6,216,000
Colonial Grand [Member]
Gain Loss on Equity Method Investments [Line Items]
Gain on disposition of unconsolidated entities	0	4,904,000
Legacy Arboretum [Member]
Gain Loss on Equity Method Investments [Line Items]
Gain on disposition of unconsolidated entities	0	3,257,000
Barrington Place [Member]
Gain Loss on Equity Method Investments [Line Items]
Gain on disposition of unconsolidated entities	$ 0	$ 1,515,000