Distributions - Additional Information (Detail) (USD $)	0 Months Ended							9 Months Ended	0 Months Ended			1 Months Ended	0 Months Ended
	Sep. 18, 2013	Sep. 03, 2013	Aug. 31, 2013	Aug. 06, 2013	Jul. 31, 2013	Jul. 24, 2013	Jun. 12, 2013	Sep. 30, 2013	Nov. 04, 2013 Subsequent Event [Member]	Oct. 30, 2013 Subsequent Event [Member]	Oct. 02, 2013 Subsequent Event [Member]	Oct. 31, 2013 Subsequent Event [Member]	Sep. 18, 2013 Period Start [Member]	Aug. 06, 2013 Period Start [Member]	Jul. 24, 2013 Period Start [Member]	Jun. 12, 2013 Period Start [Member]	Oct. 30, 2013 Period Start [Member] Subsequent Event [Member]	Sep. 18, 2013 Period End [Member]	Aug. 06, 2013 Period End [Member]	Jul. 24, 2013 Period End [Member]	Jun. 12, 2013 Period End [Member]	Oct. 30, 2013 Period End [Member] Subsequent Event [Member]
Incentive Distribution Made to Managing Member or General Partner [Line Items]
Dividend distribution period													Oct. 01, 2013	Sep. 01, 2013	Aug. 01, 2103	Jul. 01, 2013	Nov. 01, 2013	Oct. 31, 2013	Sep. 30, 2013	Aug. 31, 2013	Jul. 31, 2013	Nov. 30, 2013
Distribution declared per unit	$ 0.00173082			$ 0.00173082		$ 0.00173082	$ 0.00173082			$ 0.00173082
Cash paid for distributions		$ 22,931.98	$ 857.28						$ 47,960.48		$ 22,891.67
Reinvestment under distribution reinvestment plan			$ 1,451.63		$ 18,547.15			$ 1,771.23				$ 6,601.16
Dividends distribution declared date	Sep. 18, 2013			Aug. 06, 2013		Jul. 24, 2013	Jun. 12, 2013			Oct. 30, 2013