Distributions - Additional Information (Detail) (USD $)	1 Months Ended			3 Months Ended
	Aug. 31, 2014	Jun. 30, 2014	Feb. 28, 2014	Sep. 30, 2014
Cash Distributions [Abstract]
Total cash distributions declared and paid	$ 184,922	$ 173,615	$ 170,180
Distribution to limited partner, declaration date				Oct. 31, 2014
Distribution to limited partners, amount approved				177,885
Distribution to limited partner, per unit amount declared				$ 20.33
Distribution to limited partner, distribution date				Nov. 06, 2014
Distributions to general partner				$ 1,797
General partner, partnership interest percentage				1.00%
Distribution to general partner, distribution date				Nov. 30, 2014