Net Income Per Limited Partnership Unit - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Number of units used in computing per unit amounts	8,751	8,751	8,751	8,751
Percentage of net income attributable general partner			1.00%
Percentage of net income attributable limited partners			99.00%
Percentage of net loss attributable general partner			24.00%
Percentage of net loss attributable limited partners			76.00%
Additional losses allocated to general partner percentage			1.00%
Additional losses allocated to limited partners percentage			99.00%
Percentage of gain on sale and refinancing allocated to general partner			1.00%
Percentage of gain on sale and refinancing allocated to limited partners			99.00%
Percentage of additional gain on sale and refinancing allocated to general partner			24.00%
Percentage of additional gain on sale and refinancing allocated to limited partners			76.00%