Lease - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Property Subject to or Available for Operating Lease [Line Items]
Annual basic rent			$ 24,000
Mortgage			100,000,000
Aggregate principal balance of mortgage			100,000,000
Additional rent			1,053,800
Percentage of additional rent			50.00%
Accumulated operating loss			0
Annual rate of basic distributions to participants	14.95%		14.95%
Cash investment	7,000,000		7,000,000
Return rate on distribution			14.00%
Advance against additional rent paid to supervisors			7,380
Period in which report is to be submitted to registrant			60 days
Rent earned from related party	7,838,342	5,217,964	12,102,442	9,481,897
Net operating income of lessee			12,466,335	7,225,766
Advance against additional rent paid prior to September 30, 2011			1,053,800	1,053,800
Further additional rent paid after September 30, 2011			5,706,265	3,085,983
Excess of lessees net operating income			50.00%	50.00%
Consideration to be paid to registrant			50.00%
Consideration to be paid to lessee			50.00%
Monthly Additional Rent [Member]
Property Subject to or Available for Operating Lease [Line Items]
Additional rent			$ 87,817