Condensed Consolidated Statements of Partners' Capital (USD $)	Total USD ($)	General Partner USD ($)	Number of Units	Beneficial Unit Certificate Holders USD ($)	Unallocated Deficit of Consolidated VIEs USD ($)	Noncontrolling Interest USD ($)	Accumulated Other Comprehensive Income (Loss) [Member] USD ($)	Ohio Properties [Member] USD ($)	Ohio Properties [Member] General Partner USD ($)	Ohio Properties [Member] Beneficial Unit Certificate Holders USD ($)	Ohio Properties [Member] Unallocated Deficit of Consolidated VIEs USD ($)	Ohio Properties [Member] Noncontrolling Interest USD ($)	Ohio Properties [Member] Accumulated Other Comprehensive Income (Loss) [Member] USD ($)	Greens of Pine Glen [Member] USD ($)	Greens of Pine Glen [Member] General Partner USD ($)	Greens of Pine Glen [Member] Beneficial Unit Certificate Holders USD ($)	Greens of Pine Glen [Member] Noncontrolling Interest USD ($)	Greens of Pine Glen [Member] Accumulated Other Comprehensive Income (Loss) [Member] USD ($)
Balance at Dec. 31, 2011	$ 131,589,045	$ (354,006)		$ 154,911,228	$ (23,512,962)	$ 544,785	$ 95,894
Partners' Capital Account, Units at Dec. 31, 2011			30,122,928
Stock Issued During Period, Shares, New Issues			12,650,000
Proceeds from Issuance of Common Stock	59,948,265			59,948,265			0
Sale of Limited Partner Interest in Multi-Family Properties	4,037	0		0	0	4,037	0
Distributions paid or accrued	(15,071,201)	(612,603)		(14,458,598)	0	0	0
Net income (loss)	3,546,516	508,592		3,651,497	(1,012,042)	398,469	0
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	9,043,887	90,439		8,953,448	0	0	9,043,887
Balance at Sep. 30, 2012	189,060,549	(367,578)		213,005,840	(24,525,004)	947,291	9,139,781
Balance at Dec. 31, 2012	183,970,931	(430,087)		207,383,087	(25,035,808)	2,053,739	7,161,381
Partners' Capital Account, Units at Dec. 31, 2012			42,772,928
Proceeds from Issuance of Common Stock	0
Deconsolidation of Discontinued Operations								393,401	14,064	1,392,303	0	(1,012,966)	1,406,367	(1,314,018)	0	0	(1,314,018)	0
Proceeds from Sale of Available-for-sale Securities	(651,849)	(6,518)		(645,331)	0	0	(651,849)
Foreclosure of Available-for-Sale Securities	4,080,734	40,807		4,039,927	0	0	4,080,734
Distributions paid or accrued	(16,672,028)	(632,180)		(16,039,848)	0	0	0
Net income (loss)	15,951,429	1,393,480		15,156,168	(861,803)	263,584	0
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	(29,501,541)	(295,015)		(29,206,526)	0	0	(29,501,541)
Balance at Sep. 30, 2013	$ 156,257,059	$ 84,551		$ 182,079,780	$ (25,897,611)	$ (9,661)	$ (17,504,908)