Significant property acquisitions and sales in fourth quarter of 2014 (Details) (USD $)	Dec. 30, 2014	Dec. 01, 2014	Nov. 13, 2014	Nov. 06, 2014	Nov. 03, 2014
Significant property acquisitions and sales in fourth quarter of 2014
Company sold an apartment complex known as Blue Ridge, to an independent third party in units					290
Sale price of apartment complex known as Blue Ridge, to an independent third party					$ 52,800,000
Paid off the existing mortagage on complex known as Blue Ridge					23,700,000
Gain on sale of complex known as Blue Ridge					26,700,000
Company acquired 100% ownership of Dun-Run Golf resulted in the acquisition of Mahogany Run Golf Course for a purchase price				13,300,000
The Company took out a note as seller financing to aid in the purchase in the amount				6,600,000
Option to renew for one more year can be exercised with a principal payment made before maturity				1,000,000
Company sold a complex known as Sunset Lodge in units			216
Company sold a land known as Sunset Lodge in acres			5.98
Sale price of Sunset Lodge			40,600,000
Gain recorded on the sale of Sunset Lodge			18,900,000
Company acquired a complex known as Legacy at Pleasant Grove in units from a third party		208
Company exchanged the existing note receivable and all accrued interest in the amount for Legacy at Pleasant Grove		5,000,000
Company acquired a complex known as Villas at Park West I in units from a third party		148
Company exchanged the existing note receivable and all accrued interest in the amount for Villas at Park West I		1,300,000
Company acquired a complex known as Villas at Park West II in units from a third party		112
Company exchanged the existing note receivable and all accrued interest in the amount for Villas at Park West II		5,100,000
Company acquired acres of land known as Bonneau Land, from a third party	8.387
Purchase price of land known as Bonneau Land, purchased from a third party	1,200,000
Company sold acres of land known as Carr (Luna) Land, to a third party	2.606
Sale price of land known as Carr (Luna) Land, sold to a third party	300,000
Loss recorded on the sale of Carr (Luna) Land sold to a third party	$ 400,000